ACC


Line plots across dimensions of each concept
Line plots across concepts
Tables

Table of contents



us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding

us-gaap:WeightedAverageNumberOfSharesOutstandingBasic

us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount
us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecurities

us-gaap:EarningsPerShareBasic

us-gaap:EarningsPerShareDiluted
us-gaap:AwardType
us-gaap:AllocatedShareBasedCompensationExpense

us-gaap:ComprehensiveIncomeNetOfTax
dei:LegalEntity

us-gaap:GainsLossesOnExtinguishmentOfDebt
dei:LegalEntity

us-gaap:GeneralAndAdministrativeExpense
dei:LegalEntity

us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest
dei:LegalEntity

us-gaap:IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest
dei:LegalEntity
us-gaap:ConsolidationItems

us-gaap:IncomeTaxExpenseBenefit
dei:LegalEntity

us-gaap:InterestExpense
us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments

us-gaap:InterestPaidNet
dei:LegalEntity

us-gaap:LitigationSettlementExpense

us-gaap:NetIncomeLoss
dei:LegalEntity

us-gaap:NetIncomeLossAttributableToNoncontrollingInterest
dei:LegalEntity, us-gaap:RealEstateProperties

us-gaap:NonoperatingIncomeExpense
dei:LegalEntity

us-gaap:OperatingExpenses
dei:LegalEntity
us-gaap:ConsolidationItems
us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments

us-gaap:OperatingIncomeLoss
dei:LegalEntity
us-gaap:ConsolidationItems

us-gaap:ProfitLoss
dei:LegalEntity
dei:LegalEntity, us-gaap:ProductOrService
us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax
us-gaap:ProductOrService

us-gaap:Revenues
dei:LegalEntity
us-gaap:ConsolidationItems
us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments

us-gaap:Assets
dei:LegalEntity
dei:LegalEntity, us-gaap:BalanceSheetLocation, us-gaap:InvestmentsByConsolidatedAndNonconsolidatedEntities
dei:LegalEntity, us-gaap:ConsolidatedEntities, us-gaap:BalanceSheetLocation
us-gaap:BalanceSheetLocation, us-gaap:InvestmentsByConsolidatedAndNonconsolidatedEntities
us-gaap:ConsolidatedEntities, us-gaap:BalanceSheetLocation
us-gaap:ConsolidationItems
us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments

us-gaap:Liabilities
dei:LegalEntity
dei:LegalEntity, us-gaap:BalanceSheetLocation, us-gaap:InvestmentsByConsolidatedAndNonconsolidatedEntities
dei:LegalEntity, us-gaap:ConsolidatedEntities, us-gaap:BalanceSheetLocation
us-gaap:BalanceSheetLocation, us-gaap:InvestmentsByConsolidatedAndNonconsolidatedEntities
us-gaap:ConsolidatedEntities, us-gaap:BalanceSheetLocation

us-gaap:LiabilitiesAndStockholdersEquity
dei:LegalEntity

us-gaap:StockholdersEquity

us-gaap:CashAndCashEquivalentsAtCarryingValue
dei:LegalEntity

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents
dei:LegalEntity
us-gaap:RealEstateProperties
us-gaap:Land
us-gaap:RealEstateProperties
us-gaap:FurnitureAndFixturesGross
us-gaap:RealEstateProperties
us-gaap:ConstructionInProgressGross
us-gaap:FiniteLivedIntangibleAssetsByMajorClass
us-gaap:FiniteLivedIntangibleAssetsNet

us-gaap:OperatingLeaseRightOfUseAsset
dei:LegalEntity

us-gaap:OtherAssets
dei:LegalEntity

us-gaap:LongTermDebt
us-gaap:LongtermDebtType
us-gaap:RealEstateProperties

us-gaap:MinorityInterest

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearTwo

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearThree

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFour

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFive

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive

us-gaap:OperatingLeaseLiability
dei:LegalEntity

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDue

us-gaap:LesseeOperatingLeaseLiabilityUndiscountedExcessAmount

us-gaap:StockholdersEquity

us-gaap:StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest
us-gaap:RealEstateProperties, us-gaap:StatementEquityComponents
us-gaap:StatementEquityComponents

us-gaap:AdditionalPaidInCapitalCommonStock

us-gaap:RetainedEarningsAccumulatedDeficit

us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax
dei:LegalEntity

us-gaap:MinorityInterest

us-gaap:StockIssuedDuringPeriodValueNewIssues
us-gaap:StatementEquityComponents

us-gaap:AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue
dei:LegalEntity
dei:LegalEntity, us-gaap:PartnerTypeOfPartnersCapitalAccount
us-gaap:StatementEquityComponents

us-gaap:MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders
dei:LegalEntity
dei:LegalEntity, us-gaap:RealEstateProperties, us-gaap:StatementEquityComponents
dei:LegalEntity, us-gaap:StatementEquityComponents
us-gaap:RealEstateProperties, us-gaap:StatementEquityComponents
us-gaap:StatementEquityComponents

us-gaap:NetCashProvidedByUsedInOperatingActivities
dei:LegalEntity

us-gaap:NetCashProvidedByUsedInInvestingActivities
dei:LegalEntity

us-gaap:NetCashProvidedByUsedInFinancingActivities
dei:LegalEntity

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect
dei:LegalEntity

us-gaap:AmortizationOfFinancingCosts
dei:LegalEntity

us-gaap:DeferredIncomeTaxExpenseBenefit
dei:LegalEntity

us-gaap:DepreciationDepletionAndAmortization
dei:LegalEntity

us-gaap:IncreaseDecreaseInAccountsReceivable
dei:LegalEntity

us-gaap:NetCashProvidedByUsedInOperatingActivities
dei:LegalEntity

us-gaap:NetIncomeLoss
dei:LegalEntity

us-gaap:ProfitLoss
dei:LegalEntity

us-gaap:ShareBasedCompensation
dei:LegalEntity

us-gaap:NetCashProvidedByUsedInInvestingActivities
dei:LegalEntity
us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments
us-gaap:PaymentsToAcquireProductiveAssets

us-gaap:NetCashProvidedByUsedInFinancingActivities
dei:LegalEntity

us-gaap:Dividends
us-gaap:StatementEquityComponents
us-gaap:ConsolidatedEntities
us-gaap:DeferredTaxAssetsNet
us-gaap:ConsolidatedEntities
us-gaap:DeferredTaxAssetsValuationAllowance

acc:AmortizationofInterestRateSwapTerminationsandOther
dei:LegalEntity
acc:RealEstateAssetAcquisitions, us-gaap:SubsequentEventType
acc:AssetAcquisitionsConsiderationTransferred
us-gaap:ConsolidatedEntities, us-gaap:EquityMethodInvestmentNonconsolidatedInvestee
us-gaap:ConsolidatedEntities, us-gaap:EquityMethodInvestmentNonconsolidatedInvestee, us-gaap:PropertyPlantAndEquipmentByType
us-gaap:PropertyPlantAndEquipmentByType
us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName, us-gaap:InvestmentsByConsolidatedAndNonconsolidatedEntities
us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName, us-gaap:InvestmentsByConsolidatedAndNonconsolidatedEntities, us-gaap:PropertyPlantAndEquipmentByType
us-gaap:ConsolidatedEntities, us-gaap:EquityMethodInvestmentNonconsolidatedInvestee
acc:AssetAcquisitionsConsiderationTransferredNoncash
us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName, us-gaap:InvestmentsByConsolidatedAndNonconsolidatedEntities

acc:Changeinfairvalueofredeemablenoncontrollinginterest
dei:LegalEntity

acc:ConstructionAndDevelopmentCostsAndServiceManagementCosts
dei:LegalEntity
dei:LegalEntity, us-gaap:LongtermDebtType
acc:DebtInstrumentOriginalIssueDiscount
us-gaap:LongtermDebtType
dei:LegalEntity, us-gaap:LongtermDebtType
acc:DebtInstrumentProceedsAsPercentageOfParValue
us-gaap:LongtermDebtType
us-gaap:StatementEquityComponents
acc:Depositswithdrawstodeferredcompensationplannetofwithdrawsdeposits
us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments
acc:DevelopmentAndManagementFeesRevenue

acc:GainLossonDispositionofRealEstate

acc:IncomeLossFromContinuingOperationsAttributableToParentNetOfAmountAllocatedToParticipatingSecurities
dei:LegalEntity

acc:IncreaseDecreaseInFairValueOfInterestRateSwapsNet
dei:LegalEntity

acc:LesseeOperatingLeaseRentAbatements

acc:LesseeOperatingLeaseRentConcessions
us-gaap:RealEstateAndAccumulatedDepreciationDescriptionOfProperty
acc:LessorOperatingLeaseRentRefunds
us-gaap:RealEstateAndAccumulatedDepreciationDescriptionOfProperty
acc:LessorOperatingLeaseRentReimbursements
us-gaap:RealEstateProperties
acc:LessorPercentageOfNetCashFlowReceivablePerAgreement
dei:LegalEntity
acc:NetIncomeLossAvailabletoCommonUnitholders
dei:LegalEntity
acc:NoncontrollingInterestDecreaseFromDistributions
dei:LegalEntity, us-gaap:PartnerTypeOfPartnersCapitalAccount

acc:NoncontrollingInterestIncreasefromContributionsbyNoncontrollingPartners
dei:LegalEntity
dei:LegalEntity, us-gaap:RealEstateProperties, us-gaap:StatementEquityComponents
us-gaap:RealEstateProperties, us-gaap:StatementEquityComponents
dei:LegalEntity, us-gaap:RealEstateProperties
acc:OperatingExpensesExcludingGeneralAdministrativeDepreciationAndLeaseExpense
us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments
us-gaap:RealEstateProperties

acc:OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationOfSwapInterestAccrualsToInterestExpenseBeforeTax

acc:PaymentOfOrdinaryDividendsCommonStockAndPreferredStock
dei:LegalEntity, us-gaap:StatementClassOfStock
us-gaap:GuaranteeObligationsByNature
acc:PurchaseAndSaleAgreementUponExerciseOfOption
acc:LessorLeaseArrangement
acc:RentAbatements
us-gaap:RealEstateProperties
us-gaap:SubsequentEventType, us-gaap:SubsidiarySaleOfStock
acc:SaleOfStockWeightedAveragePricePerShare
us-gaap:SubsidiarySaleOfStock

acc:Scheduledprincipalpaymentsondebt
dei:LegalEntity
us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments
acc:SegmentReportingInformationOperatingIncomeLossBeforeDepreciationAndAmortization

acc:TotalConsolidatedRevenuesIncludingInterestIncome
dei:LegalEntity
acc:UndistributedEarningsLossAllocatedtoParticipatingSecuritiesBasicandDiluted

us-gaap:AdjustmentsToAdditionalPaidInCapitalIncreaseInCarryingAmountOfRedeemablePreferredStock
dei:LegalEntity
dei:LegalEntity, us-gaap:PartnerTypeOfPartnersCapitalAccount
us-gaap:StatementEquityComponents

us-gaap:AmortizationOfFinancingCostsAndDiscounts
dei:LegalEntity
us-gaap:PropertyPlantAndEquipmentByType
us-gaap:AssetAcquisitionConsiderationTransferred

us-gaap:CashFlowHedgeGainLossToBeReclassifiedWithinTwelveMonths
us-gaap:Dividends, us-gaap:SubsequentEventType
us-gaap:CommonStockDividendsPerShareDeclared

us-gaap:ConstructionInProgressExpendituresIncurredButNotYetPaid
dei:LegalEntity

us-gaap:DepreciationAndAmortization
dei:LegalEntity
us-gaap:ConsolidationItems
us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments
dei:LegalEntity
us-gaap:DistributionMadeToLimitedPartnerDistributionsDeclaredPerUnit

us-gaap:GainLossOnSaleOfProperties
dei:LegalEntity
dei:LegalEntity
us-gaap:IncomeLossFromContinuingOperationsPerOutstandingLimitedPartnershipUnitBasicNetOfTax

us-gaap:IncreaseDecreaseInAccountsPayableAndAccruedLiabilities
dei:LegalEntity

us-gaap:IncreaseDecreaseInOtherOperatingAssets
dei:LegalEntity

us-gaap:IncreaseDecreaseInOtherOperatingLiabilities
dei:LegalEntity
us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments
us-gaap:InterestAndOtherIncome

us-gaap:InterestCostsCapitalized

us-gaap:InterestExpenseOther
dei:LegalEntity

us-gaap:InvestmentIncomeInterest
dei:LegalEntity

us-gaap:LeaseCost
dei:LegalEntity
us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments
dei:LegalEntity, us-gaap:Ownership
us-gaap:LimitedLiabilityCompanyLLCOrLimitedPartnershipLPManagingMemberOrGeneralPartnerOwnershipInterest
dei:LegalEntity, us-gaap:Ownership
us-gaap:LimitedLiabilityCompanyLLCOrLimitedPartnershipLPMembersOrLimitedPartnersOwnershipInterest
us-gaap:ConsolidatedEntities, us-gaap:Ownership

us-gaap:LitigationSettlementAmountAwardedToOtherParty
dei:LegalEntity, us-gaap:StatementEquityComponents
us-gaap:MinorityInterestChangeInRedemptionValue
us-gaap:StatementEquityComponents
dei:LegalEntity, us-gaap:StatementEquityComponents
us-gaap:NetIncomeLossAttributableToRedeemableNoncontrollingInterest
us-gaap:StatementEquityComponents

us-gaap:NetIncomeLossIncludingPortionAttributableToNonredeemableNoncontrollingInterest
dei:LegalEntity
dei:LegalEntity, us-gaap:PartnerTypeOfPartnersCapitalAccount
dei:LegalEntity, us-gaap:RealEstateProperties, us-gaap:StatementEquityComponents
us-gaap:RealEstateProperties, us-gaap:StatementEquityComponents
us-gaap:StatementEquityComponents
dei:LegalEntity
us-gaap:NetIncomeLossNetOfTaxPerOutstandingLimitedPartnershipUnitDiluted
acc:LessorLeaseArrangement
us-gaap:OperatingLeaseLeaseIncome
dei:LegalEntity, us-gaap:RealEstateProperties
us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments
us-gaap:RealEstateProperties
us-gaap:ConsolidationItems
us-gaap:OtherAmortizationOfDeferredCharges

us-gaap:OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTaxParent
dei:LegalEntity

us-gaap:OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAfterTax
dei:LegalEntity
dei:LegalEntity, us-gaap:StatementEquityComponents
us-gaap:StatementEquityComponents

us-gaap:OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAndTax
us-gaap:IncomeStatementLocation
us-gaap:OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationBeforeTax
us-gaap:ConsolidationItems
us-gaap:OtherDepreciationAndAmortization

us-gaap:OtherNonoperatingIncome
dei:LegalEntity
dei:LegalEntity, us-gaap:RealEstateProperties
us-gaap:PaymentsForCapitalImprovements
us-gaap:RealEstateProperties

us-gaap:PaymentsForProceedsFromOtherInvestingActivities
dei:LegalEntity

us-gaap:PaymentsOfDebtExtinguishmentCosts
dei:LegalEntity

us-gaap:PaymentsOfDebtIssuanceCosts
dei:LegalEntity

us-gaap:PaymentsOfDividendsMinorityInterest
dei:LegalEntity, us-gaap:StatementClassOfStock
us-gaap:SubsidiarySaleOfStock
us-gaap:PaymentsOfStockIssuanceCosts

us-gaap:PaymentsRelatedToTaxWithholdingForShareBasedCompensation
dei:LegalEntity

us-gaap:PaymentsToAcquireRealEstateHeldForInvestment
dei:LegalEntity

us-gaap:PaymentsToMinorityShareholders
dei:LegalEntity
dei:LegalEntity
us-gaap:PreferredStockDividendsAndOtherAdjustments

us-gaap:ProceedsFromCollectionOfLoansReceivable
us-gaap:SubsequentEventType

us-gaap:ProceedsFromLinesOfCredit
dei:LegalEntity

us-gaap:ProceedsFromMinorityShareholders
dei:LegalEntity

us-gaap:ProceedsFromSaleOfRealEstateHeldforinvestment
dei:LegalEntity

us-gaap:ProceedsFromUnsecuredNotesPayable
dei:LegalEntity

us-gaap:RepaymentsOfLinesOfCredit
dei:LegalEntity

us-gaap:RepaymentsOfSecuredDebt
dei:LegalEntity
us-gaap:LongtermDebtType
us-gaap:LongtermDebtType, us-gaap:SubsequentEventType

us-gaap:RepaymentsOfUnsecuredDebt
dei:LegalEntity
us-gaap:SubsequentEventType, us-gaap:SubsidiarySaleOfStock
us-gaap:SaleOfStockConsiderationReceivedOnTransaction
us-gaap:SubsidiarySaleOfStock
us-gaap:SubsequentEventType, us-gaap:SubsidiarySaleOfStock
us-gaap:SaleOfStockNumberOfSharesIssuedInTransaction

us-gaap:StockIssuedDuringPeriodValueRestrictedStockAwardGross
us-gaap:StatementEquityComponents

us-gaap:UndistributedEarningsLossAllocatedToParticipatingSecuritiesBasic
dei:LegalEntity
us-gaap:WeightedAverageLimitedPartnershipUnitsOutstanding
dei:LegalEntity
us-gaap:WeightedAverageLimitedPartnershipUnitsOutstandingDiluted
us-gaap:AwardType
us-gaap:WeightedAverageNumberDilutedSharesOutstandingAdjustment
dei:LegalEntity, us-gaap:AwardType
us-gaap:WeightedAverageNumerDilutedLimitedPartnershipUnitsOutstandingAdjustment
us-gaap:LongtermDebtType
acc:DebtInstrumentAmountRefinanced
us-gaap:LongtermDebtType, us-gaap:SubsequentEventType
us-gaap:ConsolidatedEntities
acc:DeferredTaxAssetsOperatingLease
us-gaap:ConsolidatedEntities
acc:DeferredTaxAssetsPropertyPlantAndEquipmentAndIntangibleAssets
us-gaap:ConsolidatedEntities
acc:DeferredTaxLiabilityOperatingLease
us-gaap:GuaranteeObligationsByNature
acc:GuaranteeObligationsMaximumExposureOwnerCausedDelays

acc:LoansReceivableUnamortizedDiscount
acc:LongTermDebtMaturitiesRepaymentsOfPrincipal
acc:LongTermDebtExcludingUnamortizedDebtPremiumsAndDiscount

acc:NumberOfAvailableBeds

acc:RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovementsAndFurnitureFixturesAndEquipment

acc:RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovementsAndFurnitureFixturesAndEquipment
us-gaap:SubsidiarySaleOfStock
acc:SaleOfStockRemainingAmountAvailableForIssuance
us-gaap:CreditFacility, us-gaap:LongtermDebtType
acc:TermLoanCreditFacilityAccordionFeature
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementBasis
acc:UnsecuredNotesFairValueDisclosure
us-gaap:FairValueByMeasurementBasis

dei:EntityCommonStockSharesOutstanding

srt:RealEstateAndAccumulatedDepreciationAmountOfEncumbrances

srt:RealEstateFederalIncomeTaxBasis

us-gaap:AccountsPayableAndAccruedLiabilitiesCurrentAndNoncurrent
dei:LegalEntity

us-gaap:AccountsReceivableNet
dei:LegalEntity
us-gaap:RealEstateProperties
us-gaap:BuildingsAndImprovementsGross

us-gaap:CommonStockHeldInTrust

us-gaap:CommonStockValueOutstanding

us-gaap:DebtInstrumentCarryingAmount
us-gaap:DebtInstrument, us-gaap:LongtermDebtType
us-gaap:DebtInstrument, us-gaap:LongtermDebtType, us-gaap:RealEstateProperties
us-gaap:LongtermDebtType
us-gaap:LongtermDebtType, us-gaap:RealEstateProperties
dei:LegalEntity, us-gaap:LongtermDebtType
us-gaap:DebtInstrumentFaceAmount
us-gaap:LongtermDebtType
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementBasis
us-gaap:DebtInstrumentFairValue
us-gaap:FairValueByMeasurementBasis
dei:LegalEntity, us-gaap:LongtermDebtType
us-gaap:DebtInstrumentInterestRateEffectivePercentage
us-gaap:DebtInstrument, us-gaap:LongtermDebtType
us-gaap:DebtInstrumentUnamortizedDiscount
us-gaap:LongtermDebtType, us-gaap:RealEstateProperties
us-gaap:LongtermDebtType
us-gaap:DebtInstrumentUnamortizedPremium
us-gaap:LongtermDebtType, us-gaap:RealEstateProperties
us-gaap:CreditFacility, us-gaap:DebtInstrument
us-gaap:DebtWeightedAverageInterestRate
us-gaap:CreditFacility, us-gaap:DebtInstrument, us-gaap:LongtermDebtType
us-gaap:CreditFacility, us-gaap:LongtermDebtType

us-gaap:DeferredCosts

us-gaap:DeferredFinanceCostsNet
us-gaap:DebtInstrument, us-gaap:LongtermDebtType
us-gaap:LongtermDebtType
us-gaap:LongtermDebtType, us-gaap:RealEstateProperties
us-gaap:RealEstateProperties
us-gaap:ConsolidatedEntities
us-gaap:DeferredTaxAssetsGross
us-gaap:ConsolidatedEntities
us-gaap:DeferredTaxAssetsOperatingLossCarryforwards
us-gaap:ConsolidatedEntities
us-gaap:DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost
us-gaap:ConsolidatedEntities
us-gaap:DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAccruedLiabilities
us-gaap:ConsolidatedEntities
us-gaap:DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAllowanceForDoubtfulAccounts
us-gaap:ConsolidatedEntities
us-gaap:DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsDeferredRent
us-gaap:ConsolidatedEntities
us-gaap:DeferredTaxLiabilitiesDeferredExpenseDeferredFinancingCosts

us-gaap:DerivativeAssets
us-gaap:FairValueByFairValueHierarchyLevel
us-gaap:BalanceSheetLocation, us-gaap:DerivativeInstrumentRisk, us-gaap:HedgingDesignation
us-gaap:DerivativeInstrumentsInHedgesAssetsAtFairValue
us-gaap:BalanceSheetLocation, us-gaap:DerivativeInstrumentRisk, us-gaap:HedgingDesignation
us-gaap:DerivativeInstrumentsInHedgesLiabilitiesAtFairValue
us-gaap:BalanceSheetLocation, us-gaap:HedgingDesignation

us-gaap:DerivativeLiabilities
us-gaap:FairValueByFairValueHierarchyLevel

us-gaap:DerivativeLiabilityNotionalAmount
us-gaap:DerivativeInstrumentRisk
us-gaap:AwardType
us-gaap:EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized
dei:LegalEntity
us-gaap:GeneralPartnersCapitalAccount
us-gaap:RealEstateAndAccumulatedDepreciationDescriptionOfProperty, us-gaap:GuaranteeObligationsByNature
us-gaap:GuaranteeObligationsMaximumExposure

us-gaap:InterestRateDerivativesAtFairValueNet
us-gaap:DerivativeInstrumentRisk

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths
dei:LegalEntity
us-gaap:LimitedPartnersCapitalAccount
us-gaap:CreditFacility, us-gaap:DebtInstrument
us-gaap:LineOfCreditFacilityRemainingBorrowingCapacity
us-gaap:CreditFacility, us-gaap:LongtermDebtType
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementBasis
us-gaap:LoansPayableFairValueDisclosure
us-gaap:FairValueByMeasurementBasis
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementBasis
us-gaap:LoansReceivableFairValueDisclosure
us-gaap:FairValueByMeasurementBasis
acc:LongTermDebtMaturitiesRepaymentsOfPrincipal
us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalAfterYearFive
acc:LongTermDebtMaturitiesRepaymentsOfPrincipal
us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths
acc:LongTermDebtMaturitiesRepaymentsOfPrincipal
us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFive
acc:LongTermDebtMaturitiesRepaymentsOfPrincipal
us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour
acc:LongTermDebtMaturitiesRepaymentsOfPrincipal
us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree
acc:LongTermDebtMaturitiesRepaymentsOfPrincipal
us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo

us-gaap:LongtermDebtWeightedAverageInterestRate
us-gaap:DebtInstrument, us-gaap:LongtermDebtType
us-gaap:LongtermDebtType
us-gaap:Range, us-gaap:DebtInstrument, us-gaap:LongtermDebtType
dei:LegalEntity, us-gaap:Ownership
us-gaap:MinorityInterestOwnershipPercentageByNoncontrollingOwners
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementBasis
us-gaap:NotesPayableFairValueDisclosure
us-gaap:FairValueByMeasurementBasis

us-gaap:OperatingLeaseWeightedAverageDiscountRatePercent
us-gaap:ConsolidatedEntities
us-gaap:OperatingLossCarryforwards
us-gaap:OtherCommitments
us-gaap:OtherCommitment

us-gaap:OtherLiabilities
dei:LegalEntity
dei:LegalEntity
us-gaap:PartnersCapital
dei:LegalEntity
us-gaap:PartnersCapitalAttributableToNoncontrollingInterest
dei:LegalEntity
us-gaap:PartnersCapitalIncludingPortionAttributableToNoncontrollingInterest
dei:LegalEntity, us-gaap:PartnerTypeOfPartnersCapitalAccount
dei:LegalEntity, us-gaap:RealEstateProperties, us-gaap:StatementEquityComponents
dei:LegalEntity, us-gaap:StatementEquityComponents

us-gaap:RealEstateAccumulatedDepreciation

us-gaap:RealEstateAndAccumulatedDepreciationCarryingAmountOfLand

us-gaap:RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts

us-gaap:RealEstateAndAccumulatedDepreciationInitialCostOfLand

us-gaap:RealEstateGrossAtCarryingValue
us-gaap:RealEstateProperties
us-gaap:RealEstateInvestmentPropertyAtCost

us-gaap:RealEstateInvestmentPropertyNet
dei:LegalEntity
dei:LegalEntity, us-gaap:RealEstateProperties
us-gaap:RealEstateProperties
us-gaap:RealEstateProperties
us-gaap:RealEstateOwnedAccumulatedDepreciation
us-gaap:ConsolidatedEntities, us-gaap:AccountsNotesLoansAndFinancingReceivableByReceivableType, us-gaap:EquityMethodInvestmentNonconsolidatedInvestee
us-gaap:ReceivableWithImputedInterestFaceAmount

us-gaap:RedeemableNoncontrollingInterestEquityFairValue
us-gaap:FairValueByFairValueHierarchyLevel

us-gaap:RestrictedCashAndCashEquivalents
dei:LegalEntity

us-gaap:SalesTypeLeaseNetInvestmentInLease

us-gaap:SecuredDebt
dei:LegalEntity
us-gaap:LongtermDebtType, us-gaap:RealEstateProperties
us-gaap:AwardType
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue
us-gaap:TitleOfIndividual
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant

us-gaap:TemporaryEquityCarryingAmountIncludingPortionAttributableToNoncontrollingInterests
dei:LegalEntity
dei:LegalEntity, us-gaap:StatementEquityComponents
us-gaap:StatementEquityComponents
dei:LegalEntity, us-gaap:DebtInstrument
us-gaap:UnsecuredDebt
us-gaap:DebtInstrument

Plots across concepts


IncomeStatement
Income Loss From Continuing Operations 
Before Income Taxes Extraordinary Items Noncontrolling Interest
Expenses
Income Tax Expense Benefit
Balance Sheet
Cash And Cash Equivalents At Carrying Value
Assets
Derivative Assets
Current Assets
Cash And Cash Equivalents At Carrying Value
NonCurrent Assets
Operating Lease Right Of Use Asset
Liabilities
Derivative Liabilities
Noncurrent Liabilities
Minority Interest
Stockholders Equity
Retained Earnings Accumulated Deficit
CashFlow
Net Cash Provided By Used In Investing Activities
NetCashProvidedByUsedInOperatingActivities
Net Income Loss
NetCashProvidedByUsedInInvestingActivities
Net Cash Provided By Used In Investing Activities
Shares
Weighted Average Number Of Diluted Shares Outstanding
NonoperatingIncomeExpense
Nonoperating Income Expense
LesseeOperatingLeaseLiabilityPaymentsDue
Lessee Operating Lease Liability Payments Due Next Twelve Months

Tables

  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding ▁█138.048659139.008642NA137.632091137.61356138.587513NA138.375527138.243388138.152378NA137.022012137.576366137.499963NA136.421198134.614418133.986322NA131.568371131.240667124.266312NA112.980208112.983939112.974505NA104.968616105.609561105.556833NA104.781431105.390682105.364769NA89.16986875.3057874.864447NA70.56151469.21185667.554918NA60.79496852.85300352.805966
us-gaap:WeightedAverageNumberOfSharesOutstandingBasic █▁138.048659137.711965NA137.632091137.61356137.477169NA137.403842137.268696137.101535NA137.022012136.677255136.525557NA136.421198134.614418133.052444NA130.786985130.456923123.445985NA112.32352112.308114110.955099NA104.968616104.918131104.821669NA104.781431104.779159104.697433NA89.16986874.71893474.216854NA70.00827668.65573266.956764NA59.16547252.33564252.235644
us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount █▁1.7173790.503717NA1.6029731.6068540.503717NA0.5037170.630030.659149NA1.5633721.0161961.034449NA1.9077341.987951.106644NA1.3090091.3981411.413636NA1.5520821.5579710.0NA2.0054311.3378811.342847NA1.8583941.2472041.247204NA1.0134640.9776621.013563NA1.0189541.0215631.056064NA0.1149631.286048NA
us-gaap:EarningsPerShareBasic ▂▃▄▁▁█▄▄▃▄▅▂▅▄▅▂▂▅▄▃▄▆▅▂▄█▅▂▄▅▅▆▃▄▄▂▄▅▄▃▅▅▄▃▂▂-0.070.110.16999999999999998-0.15-0.10.580.180.140.070.210.34-0.020.330.190.28-0.01-0.020.250.190.070.140.370.250.010.140.630.25-0.060.130.270.260.450.070.20.230.00.160.270.220.020.310.260.20.060.01-0.05
us-gaap:EarningsPerShareDiluted ▂▃▄▁▁█▄▄▃▄▅▂▅▄▅▂▂▅▄▃▄▆▅▂▄█▅▂▃▅▅▆▃▄▄▂▄▅▄▃▅▅▄▃▂▂-0.070.110.18-0.15-0.10.580.180.140.070.210.34-0.020.330.180.28-0.01-0.020.250.190.070.140.360.250.010.140.620.25-0.060.120.270.260.450.070.20.230.00.160.260.220.020.310.250.20.060.01-0.05
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
 EBT Margin dei:LegalEntity acc:AmericanCampusCommunitiesOperatingPartnershipLimitedPartnershipNANA232.958202.675185.547249.404255.835227.705217.371242.131245.873213.469201.059220.409227.563196.938179.008192.938203.972196.411185.983199.995202.198180.816177.874192.493196.819181.936171.977183.183182.694159.031154.428165.643155.686118.807106.962111.752104.93495.289.09399.267NANANANA
 Margin from Continuing Operations dei:LegalEntity acc:AmericanCampusCommunitiesOperatingPartnershipLimitedPartnershipNANA232.958202.675185.547249.404255.835227.705217.371242.131245.873213.469201.059220.409227.563196.938179.008192.938203.972196.411185.983199.995202.198180.816177.874192.493196.819181.936171.977183.183182.694159.031154.428165.643155.686118.807106.962111.752104.93495.289.09399.267NANANANA
 Margin from Continuing Operations us-gaap:ConsolidationItems us-gaap:OperatingSegments▁█208.785232.854NA202.792185.669249.54NA227.881217.56242.291NA213.894220.811220.811NA202.475184.177198.275209.942202.588191.882206.211208.378186.747183.751198.632203.07187.896177.775189.145186.456164.346159.649168.553NA116.817104.652NANANANANANANANANA
 Net profit Margin dei:LegalEntity acc:AmericanCampusCommunitiesOperatingPartnershipLimitedPartnershipNANA232.958202.675185.547249.404255.835227.705217.371242.131245.873213.469201.059220.409227.563196.938179.008192.938203.972196.411185.983199.995202.198180.816177.874192.493196.819181.936171.977183.183182.694159.031154.428165.643155.686118.807106.962111.752104.93495.289.09399.267NANANANA
 Operating Margin dei:LegalEntity acc:AmericanCampusCommunitiesOperatingPartnershipLimitedPartnershipNANA232.958202.675185.547249.404255.835227.705217.371242.131245.873213.469201.059220.409227.563196.938179.008192.938203.972196.411185.983199.995202.198180.816177.874192.493196.819181.936171.977183.183182.694159.031154.428165.643155.686118.807106.962111.752104.93495.289.09399.267NANANANA
 Operating Margin us-gaap:ConsolidationItems us-gaap:OperatingSegments▃▆▆▃▁▇█▅▄▇▇▄▅▅▄▃▁▂▄▃▂▃▃▁▁208.785232.854233.073202.792185.669249.54255.95227.881217.56242.291246.191213.894220.811220.811213.13202.475184.177198.275209.942202.588191.882206.211208.378186.747183.751NANANANANANANANANANANANANANANANANANANANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
 us-gaap:AllocatedShareBasedCompensationExpense us-gaap:AwardType acc:RestrictedStockAwards█▇▄▄▄▅▃▃▃▅▂▃▃▄▃▂▅▆▂▂▂▃▁▁▁5.44.73.53.43.54.03.03.02.93.82.32.72.83.32.52.43.94.32.22.22.22.71.81.71.9NANANANA1.91.61.61.61.61.41.31.31.31.01.11.1NANANANANA
 us-gaap:AllocatedShareBasedCompensationExpense us-gaap:AwardType us-gaap:RestrictedStockUnitsRSU1.2NANANA1.0NANANANANA0.20.0NANA0.00.1NANA0.00.1NANA0.00.3NANANANANANANANANANA0.1NA0.4NANANANANANANANANA
us-gaap:ComprehensiveIncomeNetOfTax ▂▄▄▁▁█▅▄▃▄▆▂▆▄▆▂▂▅▅▃▄▆▅▂▄█▄▂▃▅▅▆▃▄▄▂▃▄▄▃▄▄-8.05118.13626.644-17.664-13.06271.05426.70320.0781.79323.84645.082-2.26446.18926.39239.556-1.079-2.60734.53427.31710.91518.41544.17731.2660.43516.42568.32925.788-3.7748.56127.40528.60446.01312.8522.40324.545-1.7597.11923.4316.5832.10921.92218.158NANANANA
 us-gaap:ComprehensiveIncomeNetOfTax dei:LegalEntity acc:AmericanCampusCommunitiesOperatingPartnershipLimitedPartnershipNANA26.728-17.73-13.10871.3326.78720.1471.83823.97545.288-2.27446.50526.5739.845-1.088-2.62634.79727.52711.00318.60144.65331.6180.4616.62769.03226.09-3.8378.72127.74128.93246.5412.93922.63624.805-1.7397.26223.67116.7792.1322.21118.399NANANANA
us-gaap:GainsLossesOnExtinguishmentOfDebt NANA0.00.00.0-4.8270.020.9920.00.08.6510.0-0.784NA0.00.00.0NA-12.841NANANA0.0NANANA0.0NANANANANANANANANANANANANANANANANANANA
 us-gaap:GainsLossesOnExtinguishmentOfDebt dei:LegalEntity acc:AmericanCampusCommunitiesOperatingPartnershipLimitedPartnershipNANA0.00.00.0-4.8270.020.9920.00.08.6510.0-0.784NA0.00.00.0NA-12.841NANANA0.0NANANA0.0NANANANANANANANANANANANANANANANANANANA
us-gaap:GeneralAndAdministrativeExpense █▇▅▅▆▆▅▄▅▄▄▄█▄▃▅▆▄▃▃▃▃▃▃▃▃▃▃▃▂▂▂▂▂▄▄▂▂▂▁▂▁▁▂▁▁12.92612.3288.3118.6389.76710.1588.4867.1658.1157.3157.4827.18313.1736.6996.1868.6849.7826.7345.6835.3756.1265.3095.1715.0865.7384.8434.7764.8074.9784.3744.33.9344.6263.8067.2057.5824.6383.543.8212.883.2782.7732.4763.7162.6162.753
us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest ▂▄▄▁▁█▄▄▃▅▆▂▆▄▅▂▂▅▄▃▄▆▄▃▄▇▄▂▃▄▄▂▃▄▄▃▃▄▃▃▃▄▃▃▂▃-10.71216.32524.849-21.051-15.04182.4426.37219.64110.52431.73249.903-2.95648.07526.53139.756-0.966-2.38634.70625.91910.1919.1146.55429.172.32716.22871.57827.73-5.49514.0226.43727.016-5.1116.14721.2123.1881.18313.07620.40115.8891.8667.45917.4612.7213.8210.4875.954
 us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest dei:LegalEntity acc:AmericanCampusCommunitiesOperatingPartnershipLimitedPartnershipNANA24.849-21.051-15.04182.4426.37219.64110.52431.73249.903-2.95648.07526.53139.756-0.966-2.38634.70625.91910.1919.1146.55429.172.32716.22871.57827.73-5.49514.0226.43727.016-5.1116.14721.2123.1881.18313.07620.40116.2861.6957.45916.876NANANANA
us-gaap:IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest ▂▄▄▁▁█▄▄▃▅▆▂▆▄▅▂▂▅▄▃▄▆▄▃▄▇▄▂▃▄▄▂▃▄▄▃▃▄▄▃▃▄▃▃▂▃-11.05315.98524.633-21.424-15.42282.06125.84819.33610.2131.36849.621-2.73745.9926.2539.558-1.233-2.65334.44925.8049.84518.76546.20928.862.01615.91871.26727.291-5.78513.73126.14726.415-5.3665.89220.95522.9561.00212.9220.24515.8291.7787.31717.31715.4383.6780.3455.811
 us-gaap:IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest dei:LegalEntity acc:AmericanCampusCommunitiesOperatingPartnershipLimitedPartnershipNANA24.633-21.424-15.42282.06125.84819.33610.2131.36849.621-2.73745.9926.2539.558-1.233-2.65334.44925.8049.84518.76546.20928.862.01615.91871.26727.291-5.78513.73126.14726.415-5.3665.89220.95522.9561.00212.9220.24516.2261.6077.31716.733NANANANA
 us-gaap:IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest us-gaap:ConsolidationItems us-gaap:OperatingSegments▁█-11.05315.985NA-21.424-15.42282.061NA19.33610.2131.368NA-2.73745.9926.25NA-1.233-2.65334.44925.8049.84518.76546.20928.862.01615.91871.26727.291-5.78513.73126.14726.761-5.3665.89220.333NA-0.84310.795NANANANANANANANANA
us-gaap:IncomeTaxExpenseBenefit ▃▃▂▃▃▃▃▃▃▃▃▁█▃▂▂▂▂▂▃▃▃▃▃▃▃▃▃▃▃▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂0.3410.340.2160.3730.3810.3790.5240.3050.3140.3640.282-0.2192.0850.2810.1980.2670.2670.2570.1150.3450.3450.3450.310.3110.310.3110.4390.290.2890.290.2550.2550.2550.2550.2320.1810.1560.1560.060.0880.1420.1430.1420.1430.1420.143
us-gaap:InterestExpense ████▇▇██▇▇▇▆▆▆▆▄▂▂▃▄▄▅▆▅▄▅▆▆▅▅▅▄▄▃▃▂▁▁▁▁▁▂▂▂▂▂29.2428.97728.529.05627.16827.78328.85528.30327.06827.06127.02125.18523.33823.68423.17818.65414.57314.71716.92519.01620.11922.62724.16221.05320.58621.98824.48923.79420.98921.0920.96519.81919.60317.64116.98613.81212.80813.28212.8213.20312.17814.01315.66115.24214.96114.945
us-gaap:InterestPaidNet ▃█▃▅▄▆▆▅▆▃▆▂▆▂▃▂▂▁▃▃▂▆22.33338.43722.87529.55424.40331.95932.89527.36933.27420.91232.87119.24231.81717.91122.84516.63718.48214.44322.61820.26318.95330.668NANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:LitigationSettlementExpense ▁█0.81.2NANANA1.10.4NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:NetIncomeLoss ▂▃▄▁▁█▄▄▃▄▆▂▆▄▅▂▂▅▄▃▄▆▄▂▃▇▄▂▃▄▄▆▃▄▄▂▃▄▃▂▄▄▃▃▂▂-9.40215.61824.807-19.515-13.34480.85524.7220.22310.38629.6447.504-2.34546.00925.92739.062-1.312-2.76234.0525.3929.64418.43845.58728.3591.85515.5870.19726.85-5.84713.43828.39827.82947.1768.04921.5923.655-0.39512.32820.02615.8351.64121.7417.41313.7263.9050.768-2.189
 us-gaap:NetIncomeLoss dei:LegalEntity acc:AmericanCampusCommunitiesOperatingPartnershipLimitedPartnershipNANA24.905-19.567-13.37681.14524.81820.30610.4429.847.741-2.32446.35626.13639.382-1.29-2.7534.34425.6339.76818.66146.10528.7551.92415.82670.94427.196-5.86613.64328.77928.20247.7498.18321.86923.9610.69312.51620.31316.0771.70822.07417.7NANANANA
us-gaap:NetIncomeLossAttributableToNoncontrollingInterest ▂▅▄▁▁▆▆▃▄▇█▄▄▅▅▄▅▅▅▅▅▆▅▅▅▆▅▅▄▅▅▆▅▆▇▅▆▆▅▅▅▅▅▅▅▅-1.6510.367-0.174-1.909-2.0781.2061.128-0.887-0.1761.7282.117-0.392-0.0190.3230.496-0.0790.1090.3990.4120.2010.3270.6220.5010.1610.3381.070.4410.062-0.2930.4690.4830.6560.6170.7911.7490.3950.6790.7790.2840.1510.4410.4670.4040.1810.1690.134
 us-gaap:NetIncomeLossAttributableToNoncontrollingInterest dei:LegalEntity,us-gaap:RealEstateProperties acc:AmericanCampusCommunitiesOperatingPartnershipLimitedPartnership,us-gaap:PartiallyOwnedPropertiesNANA-0.272-1.857-2.0460.9161.03-0.97-0.231.5681.88-0.413-0.3660.1140.694-0.0570.0970.1050.1710.0770.1040.1040.1050.0920.0920.3230.0950.0810.0880.0880.110.0830.4830.5121.4430.3290.4910.4920.0420.0840.1070.18NANANANA
us-gaap:NonoperatingIncomeExpense ▄▄▄▄▄▃▄▅▄▄▁▄█▄▄▅▅▅▄▅▄▆▄▅▅█▄▄▄▄▄▄▄▄▅▅▅▅▅▅▅▅▅▅▅▅-30.149-30.076-26.262-29.286-27.553-33.046-29.371-7.666-27.317-27.267-59.931-24.45717.221-23.875-23.378-18.541-14.996-14.513-25.805-19.088-19.996-6.481-24.555-16.224-18.22421.402-24.974-24.349-21.413-21.558-21.59-20.306-20.072-21.328-17.622-14.319-13.375-13.445-14.52-14.305-13.361-15.205-14.884-12.546-16.653-17.37
 us-gaap:NonoperatingIncomeExpense dei:LegalEntity acc:AmericanCampusCommunitiesOperatingPartnershipLimitedPartnershipNANA-26.262-29.286-27.553-33.046-29.371-7.666-27.317-27.267-59.931-24.45717.221-23.875-23.378-18.541-14.996-14.513-25.805-19.088-19.996-6.481-24.555-16.224-18.22421.402-24.974-24.349-21.413-21.558-21.59-20.306-20.072-21.328-17.622-14.319-13.375-13.445-14.362-14.144-13.361-15.205NANANANA
us-gaap:OperatingExpenses ▇▇▇█▇▅██▇▇▅█▇▇▆▇▆▅▆▆▅▅▅▆▅▅▅▆▅▅▅▅▄▄▄▃▂▂▂▂▂▂▂▂▁▁189.084186.321181.847194.44173.035133.918200.092200.398179.53183.132136.039191.968170.205170.003164.429179.363166.398143.719152.248167.133146.877146.96148.473162.265143.422142.317144.115163.082136.544135.188132.213143.836128.209123.105114.876103.30580.51177.90672.01781.10568.27368.97676.13369.36856.76856.646
us-gaap:OperatingIncomeLoss ▂▃▄▁▁█▄▂▃▄▅▂▂▄▅▂▁▄▄▂▃▄▄▂▃▄▄▂▃▄▄▁▂▃▃▁▂▃▂▂▂▃▂▂▂▂19.43746.40151.1118.23512.512115.48655.74327.30737.84158.99967.5221.50130.85450.40663.13417.57512.6149.21951.72429.27839.10653.03553.72518.55134.45250.17652.70418.85435.43347.99548.96815.19526.21942.53840.8115.50226.45133.84630.40916.17120.8232.66530.46416.36717.1423.324
us-gaap:ProfitLoss ▂▄▄▁▁█▄▄▃▅▆▂▆▄▅▂▂▅▄▃▄▆▄▃▄▇▄▂▃▄▄▆▃▄▄▃▃▄▄▃▄▄▃▃▃▂-11.05315.98524.633-21.424-15.42282.06125.84819.33610.2131.36849.621-2.73745.9926.2539.558-1.233-2.65334.44925.8049.84518.76546.20928.862.01615.91871.26727.291-5.78513.73128.86728.31247.8328.66622.38125.4041.02213.00720.80516.1191.79222.18117.8814.134.0860.937-2.055
 us-gaap:ProfitLoss dei:LegalEntity acc:AmericanCampusCommunitiesOperatingPartnershipLimitedPartnershipNANA24.633-21.424-15.42282.06125.84819.33610.2131.36849.621-2.73745.9926.2539.558-1.233-2.65334.44925.8049.84518.76546.20928.862.01615.91871.26727.291-5.78513.73128.86728.31247.8328.66622.38125.4041.02213.00720.80516.1191.79222.18117.88NANANANA
 us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax dei:LegalEntity,us-gaap:ProductOrService acc:AmericanCampusCommunitiesOperatingPartnershipLimitedPartnership,acc:DevelopmentServicesNANA2.0122.1861.292.0550.6625.6113.6073.1713.3980.8352.2020.8466.0643.566NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax dei:LegalEntity,us-gaap:ProductOrService acc:AmericanCampusCommunitiesOperatingPartnershipLimitedPartnership,acc:ResidentServicesNANA0.7570.6220.3020.720.8890.7260.7470.7820.8760.6920.7350.8570.8890.713NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax dei:LegalEntity,us-gaap:ProductOrService acc:AmericanCampusCommunitiesOperatingPartnershipLimitedPartnership,us-gaap:ManagementServiceNANA3.1682.7712.6683.8293.8183.3423.4652.3112.5032.1282.4522.7312.6392.291NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:ProductOrService acc:DevelopmentServices▁▃▃▃▂▃▁▇▅▄▅▁▃▁█▅0.8661.9592.0122.1861.292.0550.6625.6113.6073.1713.3980.8352.2020.8466.0643.566NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:ProductOrService acc:ResidentServicesNANA0.7570.6220.3020.720.8890.7260.7470.7820.8760.6920.7350.8570.8890.713NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:ProductOrService us-gaap:ManagementService▄▆▅▄▃██▆▇▂▃▁▂▃▃▂2.8113.3613.1682.7712.6683.8293.8183.3423.4652.3112.5032.1282.4522.7312.6392.291NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:Revenues ▆▇▇▆▅██▇▇▇█▆▆▇▇▆▅▆▆▆▅▆▆▅▅▆▆▅▅▅▅▄▄▅▄▃▂▂▂▂▂▂▂▁▁▁208.521232.722232.958202.675185.547249.404255.835227.705217.371242.131245.873213.469201.059220.409227.563196.938179.008192.938203.972196.411185.983199.995202.198180.816177.874192.493196.819181.936171.977183.183182.694159.031154.428165.643155.686118.807106.962111.752105.8597.27689.092101.64194.12485.73573.90879.97
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
us-gaap:Assets ██████████▇▇▇▇▇▇▆▆▆▆▆▆▆▆▆▆▆▆▆▅▅▅▅▅▅▄▂▂▂▂▂▂▂▂▁7538.4417518.7087531.167581.5247514.517619.7567559.7547668.9827382.8977325.4487038.8467046.0486905.0177006.9526897.376686.8916224.9735987.9665865.9136279.3756315.0576367.5376025.9476026.1025810.175819.5655834.7485753.8615720.9935620.7155598.045320.0865291.6455160.1415118.9624214.5723240.5093115.9813008.5822705.4752621.092629.3522693.4842660.5522150.9NA
us-gaap:Liabilities ██████▇▇▆▆▅▅▅▆▅▅▄▄▃▄▄▄▅▅▅▅▅▅▅▅▅▄▄▄▃▃▂▂▂▁▁▁▁4437.2344385.2154350.0564365.04222.5684249.854116.6994130.8553756.1023635.6463307.5993299.1243089.5733399.8963266.2433060.8152601.9232430.7922360.3482761.4262816.7832827.6063184.7793169.7062917.1072899.7323164.9933153.3273083.7952953.6242919.5112633.9732595.4472440.3912384.3742000.7251741.1131598.9051562.2541351.4711295.0441373.941440.885NANANA
us-gaap:LiabilitiesAndStockholdersEquity ██████████▇▇▇▇▇▇▆▆▅▆▆▆▆▆▅▅▅▅▅▅▅▅▅▅▄▃▂▂▂▁▁▁▁7538.4417518.7087531.167581.5247514.517619.7567559.7547668.9827382.8977325.4487038.8467046.0486905.0177006.9526897.376686.8916224.9735987.9665865.9136279.3756315.0576367.5376025.9476026.1025810.175819.5655834.7485753.8615720.9935620.7155598.045320.0865291.6455160.1415118.9624214.5723240.5093115.9813008.5822705.4752621.092629.3522693.484NANANA
us-gaap:StockholdersEquity ▆▆▇▇▇▇▇▇▇▇██████████▇█▆▆▆▆▅▅▅▅▅▅▅▅▅▄▂▂▁▁▁▁▁3035.9253067.1683114.1283152.9353232.5653309.8113294.6763330.0753379.9993438.9243481.0513497.2013614.1473456.5033484.9853500.0933554.03487.7783444.9853450.1063420.3913462.2772770.1962785.7232826.8742848.2432609.5542543.9572578.4782608.5832624.9012630.8412615.0462634.2372648.3812128.4361427.9221443.1621375.2161312.6491286.1291218.0331213.962NANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
us-gaap:CashAndCashEquivalentsAtCarryingValue ▁▂▂▂▁▄▂▂▂▂▂▂▂▂▂▁▁▁▁▁▅█▁▂▁▁▁▁▂▁▂▁▁▁▁▁▁▁▁▁▂▁▃▅▁▁30.28341.11154.01744.44931.011176.75854.6556.21851.54146.16671.23850.80152.60855.50241.18216.34125.47634.1322.1432.393206.738387.27316.65945.238.76517.81225.06219.41264.32431.21138.75125.26725.54115.03321.45418.01117.60632.59222.39928.49948.26331.922113.507203.66520.93221.55
us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents ▂▂▂▂▂█▃▃▃▃▄▃▃▃▂▁▁▂▁57.75965.22973.97267.97760.97208.88881.34885.78788.72679.855106.51790.54187.20483.98764.77242.16553.79558.51646.957NANANA50.334NANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:Land us-gaap:RealEstateProperties acc:OwnedProperties█▅▅▃▁▁▃▄677.299665.035664.879654.602643.401643.38654.985657.986NANA653.522NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
 us-gaap:FurnitureAndFixturesGross us-gaap:RealEstateProperties acc:OnCampusParticipatingProperties█▇▇▇▅▂▁14.57914.43314.38914.36714.09813.70513.552NANANA11.817NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:FurnitureAndFixturesGross us-gaap:RealEstateProperties acc:OwnedProperties█▆▅▇▃▁▁▂416.979409.793405.843412.417397.746389.589391.208392.467NANA371.429NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:ConstructionInProgressGross us-gaap:RealEstateProperties acc:OnCampusParticipatingProperties█▁0.110.065NANA0.00.00.006NANANA0.658NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:ConstructionInProgressGross us-gaap:RealEstateProperties acc:OwnedProperties▂▄▄▂█▇▄▁306.13352.143361.893310.115456.192437.203341.554272.448NANA302.902NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:FiniteLivedIntangibleAssetsNet us-gaap:FiniteLivedIntangibleAssetsByMajorClass acc:PropertyTaxAbatementNANA34.5NANANA38.6NANANA56.3NANANA61.4NANANA55.1NANANA56.858.156.242.136.7NANANA37.2NANANANANANANANANANANANANANANA
us-gaap:OperatingLeaseRightOfUseAsset ████████▁▁457.52456.86457.573458.33459.11459.957460.857461.81279.3280.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
us-gaap:LongTermDebt ████▇▇▇▇▇▆▆▆▅▆▆▅▄▄▄▅▅▅▆▆▅▅▆▆▆▅▅▄▄▄▄▃▂▂▂▁▁3727.1293672.9933593.0033590.8933506.653540.2833397.853363.4693241.3623109.4233027.5992973.7222827.2573134.213024.5192766.2852360.0342208.3212125.2972484.2922590.6642623.2672967.982921.3292733.2212724.7712972.7192924.3452911.3722790.5872744.3872434.292450.2762291.4072221.1051829.3881626.8471487.2081447.531237.1581207.508NA1345.103NANANA
us-gaap:MinorityInterest ▁▃▃▄▁▃▄█38.74841.57142.40942.738.46542.32743.99850.189NANA65.75NANANANANANANANANANANANANANANANANANANANANANANANA28.573NANA28.5833.643.6373.6673.933NANANA
us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearTwo NANA23.664NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearThree NANA28.776NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFour NANA29.371NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFive NANA29.404NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive NANA1632.009NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
us-gaap:StockholdersEquity ▆▆▇▇▇▇▇▇▇▇██████████▇█▆▆▆▆▅▅▅▅▅▅▅▅▅▄▂▂▁▁▁▁▁3035.9253067.1683114.1283152.9353232.5653309.8113294.6763330.0753379.9993438.9243481.0513497.2013614.1473456.5033484.9853500.0933554.03487.7783444.9853450.1063420.3913462.2772770.1962785.7232826.8742848.2432609.5542543.9572578.4782608.5832624.9012630.8412615.0462634.2372648.3812128.4361427.9221443.1621375.2161312.6491286.1291218.0331213.962NANANA
us-gaap:StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest ▆▆▇▇▇▇▇▇▇▇███▇▇██▇▇▇▇▇▅▅▆▆▅▅▅▅▅▅▅▅▅▄▂▂▂▁▁▁▁3074.6733108.7393156.5373195.6353271.033352.1383338.6743380.2643440.8853503.1073546.8013562.273684.1353480.0573498.9583513.8063567.7063501.5093450.4873454.2313424.5523473.7982781.6572796.4272830.9722852.4012615.2832549.5972584.1442614.2782630.5652636.3232643.8672663.0142677.0542157.0091456.5121471.7491403.7991316.2891289.7661221.71217.895NANANA
us-gaap:AdditionalPaidInCapitalCommonStock █████████████████▇▇▇▇▇▅▅▅▅▅▅▅▅▅▅▅▅▅▃▂▂▁▁▁▁▁4515.454472.8674472.174472.4894469.2514467.9064458.4564455.5654460.4124455.9484458.244456.2084507.4534332.4714326.914321.2284312.4134183.7584118.8424095.4524021.444026.0453325.8063326.5153323.013315.7113102.543022.6863013.4013011.9513017.6313014.2393006.5183000.6173001.522470.7371737.3971734.3371664.4161594.3731546.321476.9071468.179NANANA
us-gaap:RetainedEarningsAccumulatedDeficit ▁▁▂▂▂▃▃▃▃▄▄▄▄▄▅▅▅▅▆▆▆▆▆▆▇▇▇▇▇▇▇▇▇▇▇▇███████-1457.273-1382.492-1332.689-1292.364-1207.645-1129.108-1144.721-1104.448-1059.633-1005.041-971.07-955.31-889.524-872.281-837.644-816.36-754.66-692.51-670.137-639.698-594.115-557.427-550.501-533.708-490.368-460.753-487.986-474.659-428.676-401.983-392.338-382.231-391.468-361.575-347.521-335.667-305.054-291.962-286.565-278.322-256.308-254.788-249.381NANANA
us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax ▃▃▂▂▁▁▄▃▃▅▇▇▇▇▇▇▇▇▇▆▆▆▆▆▆▆▆▇▆▇█▇█▆▆▆▇█▇▇▇▇▇-18.908-20.259-22.777-24.614-26.465-26.747-16.946-18.929-18.784-10.191-4.397-1.975-2.056-2.236-2.701-3.195-3.428-3.583-4.067-5.992-7.263-7.24-5.83-8.207-6.891-7.838-6.072-5.114-7.29-2.428-1.435-2.21-1.047-5.848-6.661-7.551-5.1650.044-3.36-4.108-4.576-4.758-5.503NANANA
 us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax dei:LegalEntity acc:AmericanCampusCommunitiesOperatingPartnershipLimitedPartnershipNANA-22.777-24.614-26.465-26.747-16.946-18.929-18.784-10.191-4.397-1.975-2.056-2.236-2.701-3.195-3.428-3.583-4.067-5.992-7.263-7.24-5.83-8.207-6.891-7.838-6.072-5.114-7.29-2.428-1.435-2.21-1.047-5.848-6.661-7.551-5.1650.044-3.36NANANANANANANA
us-gaap:MinorityInterest ▁▃▃▄▁▃▄█38.74841.57142.40942.738.46542.32743.99850.189NANA65.75NANANANANANANANANANANANANANANANANANANANANANANANA28.573NANA28.5833.643.6373.6673.933NANANA
us-gaap:StockIssuedDuringPeriodValueNewIssues 37.737NANANANANANANANANANANANANA0.01.056124.35962.46612.6762.224-0.067707.4140.00.0-0.058212.74181.841NANANANANANANA530.341731.343-0.43573.65873.89549.00570.9411.185NANANANA
us-gaap:AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue █▁6.4815.148NA3.5024.4393.988NA3.1053.7443.7652.2542.8753.6043.4432.4532.453.9354.2562.2232.2232.2192.6511.8251.7041.9152.0611.6511.651.6511.8641.6171.6141.6141.5781.3311.3251.3261.2971.0881.0881.0890.987NANANANA
us-gaap:MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders █▁1.1891.138NA0.0181.8162.566NA1.3483.0373.6611.0540.0151.2240.0470.00.0560.1220.0340.010.1130.1530.10.0170.0720.1520.3940.0060.1070.1170.057-0.0720.0140.4390.4081.3430.3460.4880.4880.0070.0810.1370.11NANANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
us-gaap:NetCashProvidedByUsedInOperatingActivities ▃▃▇▆▃▆▆█▄▅▇▆▄▇▅▇▄▄▄▆▅▄▅▃▃▅▄▅▃▄▄▅▃▃▄▃▂▃▂▂▁▁▂▂▁▁51.59849.814106.802101.1852.35190.78496.653125.34767.76780.612109.68897.47561.318108.1474.831116.48561.65966.97965.25291.54287.22864.06784.92748.80753.01874.23458.85287.77152.20961.06669.87973.91345.72657.1666.79954.8831.80349.55637.16642.26227.11124.49437.66434.50720.66125.252
us-gaap:NetCashProvidedByUsedInInvestingActivities ▅▅▅▅▅▆▆▅▅▅▅▅▆▅▄▃▄▅█▅▅▆▅▅▆▆▅▅▅▅▄▅▅▅▂▁▅▅▄▅▆▅▅▅▆▆-76.294-66.575-37.693-118.25-99.5148.021-9.015-167.518-122.735-116.872-119.701-171.70992.308-136.71-207.449-338.996-287.958-143.396334.182-170.128-177.918-17.692-108.811-91.737-27.578-11.329-143.764-110.458-85.024-89.989-217.009-37.805-153.646-101.539-512.467-704.439-139.76-123.149-311.097-118.78627.145-37.56-100.092-112.96-19.756-13.355
 us-gaap:NetCashProvidedByUsedInInvestingActivities dei:LegalEntity acc:AmericanCampusCommunitiesOperatingPartnershipLimitedPartnershipNANA-37.693-118.25-99.5148.021-9.015-167.518-122.735-116.872-119.701-171.70992.308-136.71-207.449-338.996-287.958-143.396334.182-170.128-177.918-17.692-108.811-91.737-27.578-11.329-143.764-110.458-85.024-89.989-217.009-37.805-153.646-101.539-512.467-704.439-139.76-123.149-306.811-121.92429.089-40.652NANANANA
us-gaap:NetCashProvidedByUsedInFinancingActivities ▄▄▃▄▃▄▃▄▄▄▄▄▃▄▅▅▅▄▁▃▃▆▄▄▃▃▄▄▄▄▅▃▄▄▇█▄▄▅▄▃▃▄▅▄▃17.2268.018-63.11424.077-100.759-11.265-92.07739.23263.8399.59825.98977.571-150.40947.785157.459213.376217.64588.407-409.687-95.759-89.845324.239-4.68779.395-34.487-70.15590.562-22.22565.92821.383160.614-36.382118.42837.958449.111649.96492.97183.786267.83156.76-37.915-68.519-27.73261.186-1.523-56.44
us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect █▁-7.47-8.743NA7.007-147.918127.54NA-2.9398.871-26.662NA3.3373.21719.215NA-11.63-4.72111.559NANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect dei:LegalEntity acc:AmericanCampusCommunitiesOperatingPartnershipLimitedPartnershipNANANA7.007-147.918127.54NA-2.9398.871-26.662NA3.3373.21719.215NA-11.63NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
us-gaap:AmortizationOfFinancingCosts █▁1.4181.319NA1.3491.2551.2871.3471.3151.2181.1321.0721.1162.2141.4141.4221.1461.0231.0281.2821.3441.3522.5421.5181.3151.3381.3791.4151.5431.4611.4991.4651.4131.4161.3141.4351.0720.9811.0011.3351.2261.3291.231.2391.2380.9971.028
us-gaap:DeferredIncomeTaxExpenseBenefit ▃▃▂▃▃▃▃▃▃▃▃▁█▃▂▂▂▂▂▃▃▃▃▃▃▃▃▃▃▃0.3410.340.2160.3730.3810.3790.5240.3050.3140.3640.282-0.2192.0850.2810.1980.2670.2670.2570.1150.3450.3450.3450.310.3110.310.3110.4390.290.2890.29NA0.2550.2550.255NA0.1810.1560.1560.060.0880.1420.1430.1420.1430.1420.143
us-gaap:DepreciationDepletionAndAmortization ████████████▇▇█▇▆▆▆▆▆▆▆▆▆▅▆▅▅▅▅▅▅▅▄▂▂▂▂▂▂▂▂▁▁▁68.74168.11767.72467.36966.44166.16968.54668.9368.81568.75568.75666.13163.53764.77965.56461.12555.94352.32351.90152.06753.70353.71654.68552.24851.58250.27351.29449.57648.4548.22247.41645.37947.70946.97139.08328.52624.48224.39922.6922.20522.10422.27221.97219.97917.79517.822
us-gaap:IncreaseDecreaseInAccountsReceivable ▄▅▃▆▄▄▃▆▄▅▁█▄▅▄▅▄▄▄▅▄▃▄▆▅▄▄▅▅▄▄▅▅▄▅▅▅▄▄▅▄▄▄▅▄▄-3.8672.552-10.91812.814-3.093-1.143-13.80518.242-4.5215.491-36.73237.47-1.4420.556-6.3618.014-0.592-0.647-6.9599.5330.093-11.376-5.65416.2640.372-1.585-4.5155.7420.943-1.211-7.9549.1321.848-7.6474.6625.5750.763-2.25-1.9513.677-0.523-1.597-3.8734.901-0.271-0.991
 us-gaap:IncreaseDecreaseInAccountsReceivable dei:LegalEntity acc:AmericanCampusCommunitiesOperatingPartnershipLimitedPartnershipNANA-10.91812.814-3.093-1.143-13.80518.242-4.5215.491-36.73237.47-1.4420.556-6.3618.014-0.592-0.647-6.9599.5330.093-11.376-5.65416.2640.372-1.585-4.5155.7420.943-1.211-7.9549.1321.848-7.6474.6625.5750.763-2.25-1.9513.677-0.523-1.597NANANANA
us-gaap:NetCashProvidedByUsedInOperatingActivities ▃▃▇▆▃▆▆█▄▅▇▆▄▇▅▇▄▄▄▆▅▄▅▃▃▅▄▅▃▄▄▅▃▃▄▃▂▃▂▂▁▁▂▂▁▁51.59849.814106.802101.1852.35190.78496.653125.34767.76780.612109.68897.47561.318108.1474.831116.48561.65966.97965.25291.54287.22864.06784.92748.80753.01874.23458.85287.77152.20961.06669.87973.91345.72657.1666.79954.8831.80349.55637.16642.26227.11124.49437.66434.50720.66125.252
us-gaap:NetIncomeLoss ▂▃▄▁▁█▄▄▃▄▆▂▆▄▅▂▂▅▄▃▄▆▄▂▃▇▄▂▃▄▄▆▃▄▄▂▃▄▃▂▄▄▃▃▂▂-9.40215.61824.807-19.515-13.34480.85524.7220.22310.38629.6447.504-2.34546.00925.92739.062-1.312-2.76234.0525.3929.64418.43845.58728.3591.85515.5870.19726.85-5.84713.43828.39827.82947.1768.04921.5923.655-0.39512.32820.02615.8351.64121.7417.41313.7263.9050.768-2.189
 us-gaap:NetIncomeLoss dei:LegalEntity acc:AmericanCampusCommunitiesOperatingPartnershipLimitedPartnershipNANA24.905-19.567-13.37681.14524.81820.30610.4429.847.741-2.32446.35626.13639.382-1.29-2.7534.34425.6339.76818.66146.10528.7551.92415.82670.94427.196-5.86613.64328.77928.20247.7498.18321.86923.9610.69312.51620.31316.0771.70822.07417.7NANANANA
us-gaap:ProfitLoss ▂▄▄▁▁█▄▄▃▅▆▂▆▄▅▂▂▅▄▃▄▆▄▃▄▇▄▂▃▄▄▆▃▄▄▃▃▄▄▃▄▄▃▃▃▂-11.05315.98524.633-21.424-15.42282.06125.84819.33610.2131.36849.621-2.73745.9926.2539.558-1.233-2.65334.44925.8049.84518.76546.20928.862.01615.91871.26727.291-5.78513.73128.86728.31247.8328.66622.38125.4041.02213.00720.80516.1191.79222.18117.8814.134.0860.937-2.055
 us-gaap:ProfitLoss dei:LegalEntity acc:AmericanCampusCommunitiesOperatingPartnershipLimitedPartnershipNANA24.633-21.424-15.42282.06125.84819.33610.2131.36849.621-2.73745.9926.2539.558-1.233-2.65334.44925.8049.84518.76546.20928.862.01615.91871.26727.291-5.78513.73128.86728.31247.8328.66622.38125.4041.02213.00720.80516.1191.79222.18117.88NANANANA
us-gaap:ShareBasedCompensation █▆▄▄▅▅▄▄▅▅▃▃▄▄▃▃▆▅▃▃▃▃▂▂▃▂▂▂▂▂▂▂▂▂▂▂▂▂▁▁▁▁▁▁▁▁6.4815.1483.4953.5024.4393.9883.0033.1053.7443.7652.2542.8753.6043.4432.4532.4994.6464.2562.2232.3282.8412.6511.8261.8712.4032.0611.6511.651.9991.8641.6171.6141.8161.5781.4021.3251.3261.2971.0881.0881.2040.9870.9110.8861.0190.929
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
us-gaap:NetCashProvidedByUsedInInvestingActivities ▅▅▅▅▅▆▆▅▅▅▅▅▆▅▄▃▄▅█▅▅▆▅▅▆▆▅▅▅▅▄▅▅▅▂▁▅▅▄▅▆▅▅▅▆▆-76.294-66.575-37.693-118.25-99.5148.021-9.015-167.518-122.735-116.872-119.701-171.70992.308-136.71-207.449-338.996-287.958-143.396334.182-170.128-177.918-17.692-108.811-91.737-27.578-11.329-143.764-110.458-85.024-89.989-217.009-37.805-153.646-101.539-512.467-704.439-139.76-123.149-311.097-118.78627.145-37.56-100.092-112.96-19.756-13.355
 us-gaap:NetCashProvidedByUsedInInvestingActivities dei:LegalEntity acc:AmericanCampusCommunitiesOperatingPartnershipLimitedPartnershipNANA-37.693-118.25-99.5148.021-9.015-167.518-122.735-116.872-119.701-171.70992.308-136.71-207.449-338.996-287.958-143.396334.182-170.128-177.918-17.692-108.811-91.737-27.578-11.329-143.764-110.458-85.024-89.989-217.009-37.805-153.646-101.539-512.467-704.439-139.76-123.149-306.811-121.92429.089-40.652NANANANA
 us-gaap:PaymentsToAcquireProductiveAssets us-gaap:ConsolidationItems,us-gaap:StatementBusinessSegments us-gaap:OperatingSegments,acc:OnCampusParticipatingProperties▁▁▁▁▁▁▁▂▁▁▁▂▁▂▁▂▁▁▁▂▁▁▁▂▁▁▃▄▆█▆▅▁▁0.5790.2060.1670.7650.6010.5650.3811.750.5370.230.7361.3940.3781.1460.6242.0390.6610.2090.4341.4460.4090.6550.5541.530.0780.7812.8875.5648.87812.2928.7267.660.3730.335NA0.9480.617NANANANANANANANANA
 us-gaap:PaymentsToAcquireProductiveAssets us-gaap:ConsolidationItems,us-gaap:StatementBusinessSegments us-gaap:OperatingSegments,acc:OwnedProperties▁▁▂▅▃▃▅█▆▅▅▇63.11466.89473.796118.2785.62196.211111.851156.84129.833115.519118.082144.91NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
us-gaap:NetCashProvidedByUsedInFinancingActivities ▄▄▃▄▃▄▃▄▄▄▄▄▃▄▅▅▅▄▁▃▃▆▄▄▃▃▄▄▄▄▅▃▄▄▇█▄▄▅▄▃▃▄▅▄▃17.2268.018-63.11424.077-100.759-11.265-92.07739.23263.8399.59825.98977.571-150.40947.785157.459213.376217.64588.407-409.687-95.759-89.845324.239-4.68779.395-34.487-70.15590.562-22.22565.92821.383160.614-36.382118.42837.958449.111649.96492.97183.786267.83156.76-37.915-68.519-27.73261.186-1.523-56.44
us-gaap:Dividends ▁█65.37965.421NA65.20465.19365.242NA65.03864.97863.61163.26463.44163.25260.56460.34660.38859.38856.42355.83155.22755.12652.51345.15245.19545.19542.96440.17740.13640.13138.04337.93637.93937.94235.64435.50931.2425.4225.42324.07823.65523.2622.82NANANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31

Weighted Average Number Of Diluted Shares Outstanding

us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding

us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding


Weighted
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-09-302012-06-302012-03-312011-09-302011-06-302011-03-312010-09-302010-06-302010-03-31
Value138139137137138138138138137137137136134133131131124112112112104105105104105105897574706967605252
Percentage of WeightedAverageNumberOfDilutedSharesOutstanding100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Weighted Average Number Of Shares Outstanding Basic

us-gaap:WeightedAverageNumberOfSharesOutstandingBasic

us-gaap:WeightedAverageNumberOfSharesOutstandingBasic


Weighted
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-09-302012-06-302012-03-312011-09-302011-06-302011-03-312010-09-302010-06-302010-03-31
Value138137137137137137137137137136136136134133130130123112112110104104104104104104897474706866595252
Percentage of WeightedAverageNumberOfSharesOutstandingBasic100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount

us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount

us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount


Antidilutive
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-09-302012-06-302012-03-312011-09-302011-06-302011-03-312010-09-302010-06-30
Value1717400.0503720.01603000.01606900.0503720.0503720.0630030.0659150.01563400.01016200.01034400.01907700.01988000.01106600.01309000.01398100.01413600.01552100.01558000.002005400.01337900.01342800.01858400.01247200.01247200.01013500.0977660.01013600.01019000.01021600.01056100.0114960.01286000.0
Percentage of AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecurities

acc:CommonUnits


Antidilutive
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-09-302012-06-302012-03-312011-09-302011-06-302011-03-312010-06-30
Value468480.0468480.0468480.0468480.0468480.0468480.0594790.0594790.0602260.0938680.0956940.01011700.01029100.01029100.01221200.01303800.01310000.01442700.01447900.001213800.01230200.01230200.01138400.01133100.01133100.0899340.0863530.0899440.0904830.0907440.0941390.01171100.0
Percentage of AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount27.393.029.229.293.093.094.490.238.592.492.553.051.893.093.393.392.793.092.90.060.592.091.661.390.890.888.788.388.788.888.889.191.1

acc:PreferredUnits


Antidilutive
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-09-302012-06-302012-03-312011-09-302011-06-302011-03-312010-09-302010-06-30
Value35242.035242.035242.035242.035242.035242.035242.064361.077513.077513.077513.077513.077513.077513.087767.094359.0103590.0109360.0110040.00110360.0107660.0112630.0114010.0114130.0114130.0114130.0114130.0114130.0114130.0114130.0114680.0114960.0114960.0
Percentage of AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount2.17.02.22.27.07.05.69.85.07.67.54.13.97.06.76.77.37.07.10.05.58.08.46.19.29.211.311.711.311.211.210.9100.08.9

acc:UnvestedRestrictedStockAwards


Antidilutive
Period End2021-06-302020-09-302020-06-302019-06-30
Value1213700.01099300.01103100.00
Percentage of AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount70.768.668.70.0

Earnings Per Share Basic

us-gaap:EarningsPerShareBasic

us-gaap:EarningsPerShareBasic


Earnings
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value-0.070.110.17-0.15-0.10.580.180.140.070.210.34-0.020.330.190.28-0.01-0.020.250.190.070.140.370.250.010.140.630.25-0.060.130.270.260.450.070.20.2300.160.270.220.020.310.260.20.060.01-0.05
Percentage of EarningsPerShareBasic100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Earnings Per Share Diluted

us-gaap:EarningsPerShareDiluted

us-gaap:EarningsPerShareDiluted


Earnings
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value-0.070.110.18-0.15-0.10.580.180.140.070.210.34-0.020.330.180.28-0.01-0.020.250.190.070.140.360.250.010.140.620.25-0.060.120.270.260.450.070.20.2300.160.260.220.020.310.250.20.060.01-0.05
Percentage of EarningsPerShareDiluted100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Allocated Share Based Compensation Expense

us-gaap:AllocatedShareBasedCompensationExpense us-gaap:AwardType

us-gaap:AllocatedShareBasedCompensationExpense

acc:RestrictedStockAwards


Allocated
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-30
Value5.44.73.53.43.54.03.03.02.93.82.32.72.83.32.52.43.94.32.22.22.22.71.81.71.91.91.61.61.61.61.41.31.31.31.01.11.1
Percentage of AllocatedShareBasedCompensationExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues2.62.01.51.71.91.61.21.31.31.60.91.31.41.51.11.22.22.21.11.11.21.40.90.91.11.00.91.01.01.00.91.11.21.20.91.11.2
Percentage of Revenues acc:RestrictedStockAwards0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:RestrictedStockUnitsRSU


Allocated
Period End2021-06-302021-01-312020-06-302018-12-312018-09-302017-12-312017-09-302016-12-312016-09-302015-12-312015-09-302012-12-312012-06-30
Value1.20.41.00.20.00.00.10.00.10.00.30.10.4
Percentage of AllocatedShareBasedCompensationExpense22.20.028.68.70.00.04.20.04.50.017.67.130.8
Percentage of Revenues0.60.00.00.10.00.00.10.00.10.00.20.10.4
Percentage of Revenues us-gaap:RestrictedStockUnitsRSU0.00.00.00.00.00.00.00.00.00.00.00.00.0

Comprehensive Income Net Of Tax

us-gaap:ComprehensiveIncomeNetOfTax

us-gaap:ComprehensiveIncomeNetOfTax


Comprehensive
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-31
Value-8.0511826-17.664-13.0627126201.7932345-2.264462639-1.079-2.6073427101844310.435166825-3.7748.561272846122224-1.7597.11923162.1092118
Percentage of ComprehensiveIncomeNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues-3.97.811.4-8.7-7.028.510.48.80.89.818.3-1.123.012.017.4-0.5-1.517.913.45.69.922.115.50.29.235.513.1-2.15.015.015.728.98.313.515.8-1.56.721.015.72.224.617.9

us-gaap:ComprehensiveIncomeNetOfTax dei:LegalEntity

acc:AmericanCampusCommunitiesOperatingPartnershipLimitedPartnership


Comprehensive
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-31
Value26-17.73-13.1087126201.8382345-2.274462639-1.088-2.6263427111844310.46166926-3.8378.721272846122224-1.7397.26223162.132218
Percentage of ComprehensiveIncomeNetOfTax100.3100.4100.4100.4100.3100.3102.5100.5100.5100.4100.7100.7100.7100.8100.7100.8100.8100.8101.0101.1101.1105.7101.2101.0101.2101.7101.9101.2101.1101.1100.7101.0101.198.9102.0101.0101.2101.0101.3101.3
Percentage of Revenues11.5-8.7-7.128.610.58.80.89.918.4-1.123.112.117.5-0.6-1.518.013.55.610.022.315.60.39.335.913.3-2.15.115.115.829.38.413.715.9-1.56.821.215.92.224.918.1
Percentage of Revenues acc:AmericanCampusCommunitiesOperatingPartnershipLimitedPartnership0.0-8.7-7.128.610.58.80.89.918.4-1.123.112.117.5-0.6-1.518.013.55.610.022.315.60.39.335.913.3-2.15.115.115.829.38.413.715.9-1.56.821.216.02.224.918.5

Gains Losses On Extinguishment Of Debt

us-gaap:GainsLossesOnExtinguishmentOfDebt

us-gaap:GainsLossesOnExtinguishmentOfDebt


Gains
Period End2020-12-312020-09-302020-06-302020-03-312020-01-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-312017-09-302017-06-302016-12-312015-12-312014-12-31
Value0.00.00.0-4.827-4.80.0200.00.08.6510.0-0.7840.00.00.0-12.8410.00.0
Percentage of GainsLossesOnExtinguishmentOfDebt0.00.00.0100.0100.00.0100.00.00.0100.00.0100.00.00.00.0100.00.00.0
Percentage of Revenues0.00.00.0-1.90.00.09.20.00.03.50.0-0.40.00.00.0-6.30.00.0

us-gaap:GainsLossesOnExtinguishmentOfDebt dei:LegalEntity

acc:AmericanCampusCommunitiesOperatingPartnershipLimitedPartnership


Gains
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-312017-09-302017-06-302016-12-312015-12-312014-12-31
Value0.00.00.0-4.8270.0200.00.08.6510.0-0.7840.00.00.0-12.8410.00.0
Percentage of GainsLossesOnExtinguishmentOfDebt0.00.00.0100.00.0100.00.00.0100.00.0100.00.00.00.0100.00.00.0
Percentage of Revenues0.00.00.0-1.90.09.20.00.03.50.0-0.40.00.00.0-6.30.00.0
Percentage of Revenues acc:AmericanCampusCommunitiesOperatingPartnershipLimitedPartnership0.00.00.0-1.90.09.20.00.03.50.0-0.40.00.00.0-6.30.00.0

General And Administrative Expense

us-gaap:GeneralAndAdministrativeExpense

us-gaap:GeneralAndAdministrativeExpense


General
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value12128.3118.6389.767108.4867.1658.1157.3157.4827.183136.6996.1868.6849.7826.7345.6835.3756.1265.3095.1715.0865.7384.8434.7764.8074.9784.3744.33.9344.6263.8067.2057.5824.6383.543.8212.883.2782.7732.4763.7162.6162.753
Percentage of GeneralAndAdministrativeExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues6.25.33.64.35.34.13.33.13.73.03.03.46.63.02.74.45.53.52.82.73.32.72.62.83.22.52.42.62.92.42.42.53.02.34.66.44.33.23.63.03.72.72.64.33.53.4

us-gaap:GeneralAndAdministrativeExpense dei:LegalEntity

acc:AmericanCampusCommunitiesOperatingPartnershipLimitedPartnership


General
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-31
Value8.3118.6389.767108.4867.1658.1157.3157.4827.183136.6996.1868.6849.7826.7345.6835.3756.1265.3095.1715.0865.7384.8434.7764.8074.9784.3744.33.9344.6263.8067.2057.5824.6383.543.8212.883.2782.773
Percentage of GeneralAndAdministrativeExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues3.64.35.34.13.33.13.73.03.03.46.63.02.74.45.53.52.82.73.32.72.62.83.22.52.42.62.92.42.42.53.02.34.66.44.33.23.63.03.72.7
Percentage of Revenues acc:AmericanCampusCommunitiesOperatingPartnershipLimitedPartnership0.04.35.34.13.33.13.73.03.03.46.63.02.74.45.53.52.82.73.32.72.62.83.22.52.42.62.92.42.42.53.02.34.66.44.33.23.63.03.72.8

Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest

us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest

us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest


Income
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value-10.7121624-21.051-15.041822619103149-2.956482639-0.966-2.3863425101946292.327167127-5.495142627-5.1116.14721231.1831320151.8667.45917123.8210.4875.954
Percentage of IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues-5.17.010.7-10.4-8.133.110.38.64.813.120.3-1.423.912.017.5-0.5-1.318.012.75.210.323.314.41.39.137.214.1-3.08.214.414.8-3.24.012.814.91.012.218.315.01.98.417.213.54.50.77.4

us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest dei:LegalEntity

acc:AmericanCampusCommunitiesOperatingPartnershipLimitedPartnership


Income
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-31
Value24-21.051-15.041822619103149-2.956482639-0.966-2.3863425101946292.327167127-5.495142627-5.1116.14721231.1831320161.6957.45916
Percentage of IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0102.590.8100.096.7
Percentage of Revenues10.7-10.4-8.133.110.38.64.813.120.3-1.423.912.017.5-0.5-1.318.012.75.210.323.314.41.39.137.214.1-3.08.214.414.8-3.24.012.814.91.012.218.315.41.78.416.6
Percentage of Revenues acc:AmericanCampusCommunitiesOperatingPartnershipLimitedPartnership0.0-10.4-8.133.110.38.64.813.120.3-1.423.912.017.5-0.5-1.318.012.75.210.323.314.41.39.137.214.1-3.08.214.414.8-3.24.012.814.91.012.218.315.51.88.417.0

Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest

us-gaap:IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest

us-gaap:IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest


Income
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value-11.0531524-21.424-15.422822519103149-2.737452639-1.233-2.65334259.8451846282.016157127-5.785132626-5.3665.89220221.0021220151.7787.31717153.6780.3455.811
Percentage of IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues-5.36.910.6-10.6-8.332.910.18.54.713.020.2-1.322.911.917.4-0.6-1.517.912.75.010.123.114.31.18.937.013.9-3.28.014.314.5-3.43.812.714.70.812.118.115.01.88.217.016.44.30.57.3

us-gaap:IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest dei:LegalEntity

acc:AmericanCampusCommunitiesOperatingPartnershipLimitedPartnership


Income
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-31
Value24-21.424-15.422822519103149-2.737452639-1.233-2.65334259.8451846282.016157127-5.785132626-5.3665.89220221.0021220161.6077.31716
Percentage of IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0102.590.4100.096.6
Percentage of Revenues10.6-10.6-8.332.910.18.54.713.020.2-1.322.911.917.4-0.6-1.517.912.75.010.123.114.31.18.937.013.9-3.28.014.314.5-3.43.812.714.70.812.118.115.31.78.216.5
Percentage of Revenues acc:AmericanCampusCommunitiesOperatingPartnershipLimitedPartnership0.0-10.6-8.332.910.18.54.713.020.2-1.322.911.917.4-0.6-1.517.912.75.010.123.114.31.18.937.013.9-3.28.014.314.5-3.43.812.714.70.812.118.115.51.78.216.9

us-gaap:IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest us-gaap:ConsolidationItems

us-gaap:OperatingSegments


Income
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-09-302012-06-30
Value-11.05315-21.424-15.42282191031-2.7374526-1.233-2.65334259.8451846282.016157127-5.785132626-5.3665.89220-0.84310
Percentage of IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0101.3100.0100.097.0-84.183.6
Percentage of Revenues-5.36.9-10.6-8.332.98.54.713.0-1.322.911.9-0.6-1.517.912.75.010.123.114.31.18.937.013.9-3.28.014.314.6-3.43.812.3-0.710.1
Percentage of Revenues us-gaap:OperatingSegments-5.36.9-10.6-8.332.98.54.712.9-1.320.811.9-0.6-1.417.40.04.99.822.40.01.18.735.90.0-3.17.713.80.0-3.33.712.1-0.710.3

Income Tax Expense Benefit

us-gaap:IncomeTaxExpenseBenefit

us-gaap:IncomeTaxExpenseBenefit


Income
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value341000.0340000.0216000.0373000.0381000.0379000.0524000.0305000.0314000.0364000.0282000.0-219000.02085000.0281000.0198000.0267000.0267000.0257000.0115000.0345000.0345000.0345000.0310000.0311000.0310000.0311000.0439000.0290000.0289000.0290000.0255000.0255000.0255000.0255000.0232000.0181000.0156000.0156000.060000.088000.0142000.0143000.0142000.0143000.0142000.0143000.0
Percentage of IncomeTaxExpenseBenefit100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues0.20.10.10.20.20.20.20.10.10.20.1-0.11.00.10.10.10.10.10.10.20.20.20.20.20.20.20.20.20.20.20.10.20.20.20.10.20.10.10.10.10.20.10.20.20.20.2

us-gaap:IncomeTaxExpenseBenefit dei:LegalEntity

acc:AmericanCampusCommunitiesOperatingPartnershipLimitedPartnership


Income
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-31
Value216000.0373000.0381000.0379000.0524000.0305000.0314000.0364000.0282000.0-219000.02085000.0281000.0198000.0267000.0267000.0257000.0115000.0345000.0345000.0345000.0310000.0311000.0310000.0311000.0439000.0290000.0289000.0290000.0255000.0255000.0255000.0255000.0232000.0181000.0156000.0156000.060000.088000.0142000.0143000.0
Percentage of IncomeTaxExpenseBenefit100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues0.10.20.20.20.20.10.10.20.1-0.11.00.10.10.10.10.10.10.20.20.20.20.20.20.20.20.20.20.20.10.20.20.20.10.20.10.10.10.10.20.1
Percentage of Revenues acc:AmericanCampusCommunitiesOperatingPartnershipLimitedPartnership0.00.20.20.20.20.10.10.20.1-0.11.00.10.10.10.10.10.10.20.20.20.20.20.20.20.20.20.20.20.10.20.20.20.10.20.10.10.10.10.20.1

Interest Expense

us-gaap:InterestExpense

us-gaap:InterestExpense


Interest
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value29282829272728282727272523232318141416192022242120212423202120191917161312131213121415151414
Percentage of InterestExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues14.012.512.214.314.611.111.312.412.511.211.011.811.610.710.29.58.17.68.39.710.811.311.911.611.611.412.413.112.211.511.512.512.710.710.911.612.011.912.113.613.713.816.617.820.218.7

us-gaap:InterestExpense us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments

us-gaap:OperatingSegments, acc:OnCampusParticipatingProperties


Interest
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-09-302012-06-30
Value0.8930.9180.9770.8541.1731.1421.0651.2551.3111.3031.2941.2821.2691.2531.2771.3121.3421.3331.3081.3941.4191.4181.4031.4641.4881.4781.7791.0911.1121.1491.3431.3651.381.3751.4191.425
Percentage of InterestExpense3.13.23.42.94.34.13.74.44.84.84.85.15.45.35.57.09.29.17.77.37.16.35.87.07.26.77.34.65.35.46.46.97.07.810.311.1
Percentage of Revenues0.40.40.40.40.60.50.40.60.60.50.50.60.60.60.60.70.70.70.60.70.80.70.70.80.80.80.90.60.60.60.70.90.90.81.21.3
Percentage of Revenues us-gaap:OperatingSegments acc:OnCampusParticipatingProperties17.110.20.015.928.610.60.017.920.311.30.018.320.412.00.019.221.713.10.020.622.814.10.022.326.116.10.018.923.514.00.026.929.317.027.930.2

us-gaap:OperatingSegments, acc:OwnedProperties


Interest
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value3.1692.962.7163.5943.0573.0464.1863.8964.0144.7635.7315.622
Percentage of InterestExpense10.810.29.512.411.311.014.513.814.817.621.222.3
Percentage of Revenues1.51.31.21.81.61.21.61.71.82.02.32.6
Percentage of Revenues us-gaap:OperatingSegments acc:OwnedProperties1.61.40.01.91.71.30.01.82.02.10.02.8

Interest Paid Net

us-gaap:InterestPaidNet

us-gaap:InterestPaidNet


Interest
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-31
Value22382229243132273320321931172216181422201830
Percentage of InterestPaidNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues10.716.59.814.613.212.812.912.015.38.613.49.015.88.110.08.410.37.511.110.310.215.3

us-gaap:InterestPaidNet dei:LegalEntity

acc:AmericanCampusCommunitiesOperatingPartnershipLimitedPartnership


Interest
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-31
Value22292431322733203219311722161814201830
Percentage of InterestPaidNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues9.814.613.212.812.912.015.38.613.49.015.88.110.08.410.37.510.310.215.3
Percentage of Revenues acc:AmericanCampusCommunitiesOperatingPartnershipLimitedPartnership0.014.613.212.812.912.015.38.613.49.015.88.110.08.410.37.510.310.215.3

Litigation Settlement Expense

us-gaap:LitigationSettlementExpense

us-gaap:LitigationSettlementExpense


Litigation
Period End2021-06-302021-03-312020-03-312019-12-31
Value800000.01200000.01100000.0400000.0
Percentage of LitigationSettlementExpense100.0100.0100.0100.0
Percentage of Revenues0.40.50.40.2

Net Income Loss

us-gaap:NetIncomeLoss

us-gaap:NetIncomeLoss


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value-9.4021524-19.515-13.344802420102947-2.345462539-1.312-2.76234259.6441845281.855157026-5.847132827478.0492123-0.3951220151.6412117133.9050.768-2.189
Percentage of NetIncomeLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues-4.56.710.6-9.6-7.232.49.78.94.812.219.3-1.122.911.817.2-0.7-1.517.612.44.99.922.814.01.08.836.513.6-3.27.815.515.229.75.213.015.2-0.311.517.915.01.724.417.114.64.61.0-2.7

us-gaap:NetIncomeLoss dei:LegalEntity

acc:AmericanCampusCommunitiesOperatingPartnershipLimitedPartnership


Net
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-31
Value24-19.567-13.376812420102947-2.324462639-1.29-2.7534259.7681846281.924157027-5.866132828478.18321230.6931220161.7082217
Percentage of NetIncomeLoss100.4100.3100.2100.4100.4100.4100.5100.5100.599.1100.8100.8100.898.399.6100.9100.9101.3101.2101.1101.4103.7101.6101.1101.3100.3101.5101.3101.3101.2101.7101.3101.3-175.4101.5101.4101.5104.1101.5101.6
Percentage of Revenues10.7-9.7-7.232.59.78.94.812.319.4-1.123.111.917.3-0.7-1.517.812.65.010.023.114.21.18.936.913.8-3.27.915.715.430.05.313.215.40.611.718.215.21.824.817.4
Percentage of Revenues acc:AmericanCampusCommunitiesOperatingPartnershipLimitedPartnership0.0-9.7-7.232.59.78.94.812.319.4-1.123.111.917.3-0.7-1.517.812.65.010.023.114.21.18.936.913.8-3.27.915.715.430.05.313.215.40.611.718.215.31.824.817.8

Net Income Loss Attributable To Noncontrolling Interest

us-gaap:NetIncomeLossAttributableToNoncontrollingInterest

us-gaap:NetIncomeLossAttributableToNoncontrollingInterest


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value-1651000.0367000.0-174000.0-1909000.0-2078000.01206000.01128000.0-887000.0-176000.01728000.02117000.0-392000.0-19000.0323000.0496000.0-79000.0109000.0399000.0412000.0201000.0327000.0622000.0501000.0161000.0338000.01070000.0441000.062000.0-293000.0469000.0483000.0656000.0617000.0791000.01749000.0395000.0679000.0779000.0284000.0151000.0441000.0467000.0404000.0181000.0169000.0134000.0
Percentage of NetIncomeLossAttributableToNoncontrollingInterest100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues-0.80.2-0.1-0.9-1.10.50.4-0.4-0.10.70.9-0.2-0.00.10.2-0.00.10.20.20.10.20.30.20.10.20.60.20.0-0.20.30.30.40.40.51.10.30.60.70.30.20.50.50.40.20.20.2

us-gaap:NetIncomeLossAttributableToNoncontrollingInterest dei:LegalEntity, us-gaap:RealEstateProperties

acc:AmericanCampusCommunitiesOperatingPartnershipLimitedPartnership, us-gaap:PartiallyOwnedProperties


Net
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-31
Value-272000.0-1857000.0-2046000.0916000.01030000.0-970000.0-230000.01568000.01880000.0-413000.0-366000.0114000.0694000.0-57000.097000.0105000.0171000.077000.0104000.0104000.0105000.092000.092000.0323000.095000.081000.088000.088000.0110000.083000.0483000.0512000.01443000.0329000.0491000.0492000.042000.084000.0107000.0180000.0
Percentage of NetIncomeLossAttributableToNoncontrollingInterest156.397.398.576.091.3109.4130.790.788.8105.41926.335.3139.972.289.026.341.538.331.816.721.057.127.230.221.5130.6-30.018.822.812.778.364.782.583.372.363.214.855.624.338.5
Percentage of Revenues-0.1-0.9-1.10.40.4-0.4-0.10.60.8-0.2-0.20.10.3-0.00.10.10.10.00.10.10.10.10.10.20.00.00.10.00.10.10.30.30.90.30.50.40.00.10.10.2
Percentage of Revenues acc:AmericanCampusCommunitiesOperatingPartnershipLimitedPartnership us-gaap:PartiallyOwnedProperties0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Nonoperating Income Expense

us-gaap:NonoperatingIncomeExpense

us-gaap:NonoperatingIncomeExpense


Nonoperating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value-30.149-30.076-26.262-29.286-27.553-33.046-29.371-7.666-27.317-27.267-59.931-24.45717-23.875-23.378-18.541-14.996-14.513-25.805-19.088-19.996-6.481-24.555-16.224-18.22421-24.974-24.349-21.413-21.558-21.59-20.306-20.072-21.328-17.622-14.319-13.375-13.445-14.52-14.305-13.361-15.205-14.884-12.546-16.653-17.37
Percentage of NonoperatingIncomeExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues-14.5-12.9-11.3-14.4-14.8-13.2-11.5-3.4-12.6-11.3-24.4-11.58.6-10.8-10.3-9.4-8.4-7.5-12.7-9.7-10.8-3.2-12.1-9.0-10.211.1-12.7-13.4-12.5-11.8-11.8-12.8-13.0-12.9-11.3-12.1-12.5-12.0-13.7-14.7-15.0-15.0-15.8-14.6-22.5-21.7

us-gaap:NonoperatingIncomeExpense dei:LegalEntity

acc:AmericanCampusCommunitiesOperatingPartnershipLimitedPartnership


Nonoperating
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-31
Value-26.262-29.286-27.553-33.046-29.371-7.666-27.317-27.267-59.931-24.45717-23.875-23.378-18.541-14.996-14.513-25.805-19.088-19.996-6.481-24.555-16.224-18.22421-24.974-24.349-21.413-21.558-21.59-20.306-20.072-21.328-17.622-14.319-13.375-13.445-14.362-14.144-13.361-15.205
Percentage of NonoperatingIncomeExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.098.998.9100.0100.0
Percentage of Revenues-11.3-14.4-14.8-13.2-11.5-3.4-12.6-11.3-24.4-11.58.6-10.8-10.3-9.4-8.4-7.5-12.7-9.7-10.8-3.2-12.1-9.0-10.211.1-12.7-13.4-12.5-11.8-11.8-12.8-13.0-12.9-11.3-12.1-12.5-12.0-13.6-14.5-15.0-15.0
Percentage of Revenues acc:AmericanCampusCommunitiesOperatingPartnershipLimitedPartnership0.0-14.4-14.8-13.2-11.5-3.4-12.6-11.3-24.4-11.58.6-10.8-10.3-9.4-8.4-7.5-12.7-9.7-10.8-3.2-12.1-9.0-10.211.1-12.7-13.4-12.5-11.8-11.8-12.8-13.0-12.9-11.3-12.1-12.5-12.0-13.7-14.9-15.0-15.3

Operating Expenses

us-gaap:OperatingExpenses

us-gaap:OperatingExpenses


Operating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value18918618119417313320020017918313619117017016417916614315216714614614816214314214416313613513214312812311410380777281686876695656
Percentage of OperatingExpenses100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues90.780.178.195.993.353.778.288.082.675.655.389.984.777.172.391.193.074.574.685.179.073.573.489.780.673.973.289.679.473.872.490.483.074.373.887.075.369.768.083.476.667.980.980.976.870.8

us-gaap:OperatingExpenses dei:LegalEntity

acc:AmericanCampusCommunitiesOperatingPartnershipLimitedPartnership


Operating
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-31
Value181194173133200200179183136191170170164179166143152167146146148162143142144163136135132143128123114103807774796867
Percentage of OperatingExpenses100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0103.197.8100.097.4
Percentage of Revenues78.195.993.353.778.288.082.675.655.389.984.777.172.391.193.074.574.685.179.073.573.489.780.673.973.289.679.473.872.490.483.074.373.887.075.369.770.281.676.666.1
Percentage of Revenues acc:AmericanCampusCommunitiesOperatingPartnershipLimitedPartnership0.095.993.353.778.288.082.675.655.389.984.777.172.391.193.074.574.685.179.073.573.489.780.673.973.289.679.473.872.490.483.074.373.887.075.369.770.883.476.667.7

us-gaap:OperatingExpenses us-gaap:ConsolidationItems

us-gaap:CorporateNonSegment


Operating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-30
Value383732323133312929272624322611272723158-22.047-22.68122143-20.657-20.538
Percentage of OperatingExpenses20.120.018.116.718.524.715.714.716.215.019.612.819.215.76.715.416.616.7104.0-13.2-15.415.596.8-12.7-14.3
Percentage of Revenues18.216.014.116.017.213.212.313.013.411.410.911.516.212.14.914.015.412.477.6-11.2-12.211.471.1-11.4-11.5
Percentage of Revenues us-gaap:CorporateNonSegment43200.042430.70.04404.94272.34620.70.03767.03727.93595.80.02899.33988.23249.70.03248.73315.12877.40.0-2383.5-1882.22253.00.0-2482.8-2520.0

us-gaap:OperatingExpenses us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments

us-gaap:OperatingSegments, acc:DevelopmentServices


Operating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-09-302012-06-30
Value2.162.2352.7322.0942.082.5252.2932.082.5281.8862.0552.0561.7152.205-3.7784.1853.6073.6043.3493.4343.3853.5953.4933.2073.9253.1073.1123.1912.7372.8432.6313.1592.7932.5892.7672.361
Percentage of OperatingExpenses1.11.21.51.11.21.91.11.01.41.01.51.11.01.3-2.32.32.22.52.22.12.32.42.42.02.72.22.22.02.02.12.02.22.22.12.72.9
Percentage of Revenues1.01.01.21.01.11.00.90.91.20.80.81.00.91.0-1.72.12.01.91.61.71.81.81.71.82.21.61.61.81.61.61.42.01.81.62.32.2
Percentage of Revenues us-gaap:OperatingSegments acc:DevelopmentServices0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:OperatingSegments, acc:PropertyManagementServices


Operating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-09-302012-06-30
Value2.843.1522.7232.9672.8973.6823.4933.351.9852.31.8311.7751.8291.993-2.1123.0343.2613.4243.5472.7422.8162.9842.9382.5623.0322.8283.193.1492.9653.0962.8152.4132.5492.5722.362.42
Percentage of OperatingExpenses1.51.71.51.51.72.71.71.71.11.31.30.91.11.2-1.31.72.02.42.31.61.92.02.01.62.12.02.21.92.22.32.11.72.02.12.33.0
Percentage of Revenues1.41.41.21.51.61.51.41.50.90.90.70.80.90.9-0.91.51.81.81.71.41.51.51.51.41.71.51.61.71.71.71.51.51.71.62.02.3
Percentage of Revenues us-gaap:OperatingSegments acc:PropertyManagementServices101.093.80.0107.1108.696.20.0100.20.00.00.00.00.00.00.040.946.245.30.033.435.735.70.032.338.235.90.042.239.540.40.034.135.736.341.145.1

Operating Income Loss

us-gaap:OperatingIncomeLoss

us-gaap:OperatingIncomeLoss


Operating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value1946518.2351211555273758672130506317124951293953531834505218354748152642401526333016203230161723
Percentage of OperatingIncomeLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues9.319.921.94.16.746.321.812.017.424.427.510.115.322.927.78.97.025.525.414.921.026.526.610.319.426.126.810.420.626.226.89.617.025.726.213.024.730.328.716.623.432.132.419.123.229.2

us-gaap:OperatingIncomeLoss dei:LegalEntity

acc:AmericanCampusCommunitiesOperatingPartnershipLimitedPartnership


Operating
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-31
Value518.23512115552737586721305063171249512939535318345052183547481526424015263330152032
Percentage of OperatingIncomeLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.897.9100.098.2
Percentage of Revenues21.94.16.746.321.812.017.424.427.510.115.322.927.78.97.025.525.414.921.026.526.610.319.426.126.810.420.626.226.89.617.025.726.213.024.730.329.016.323.431.6
Percentage of Revenues acc:AmericanCampusCommunitiesOperatingPartnershipLimitedPartnership0.04.16.746.321.812.017.424.427.510.115.322.927.78.97.025.525.414.921.026.526.610.319.426.126.810.420.626.226.89.617.025.726.213.024.730.329.216.623.432.3

us-gaap:OperatingIncomeLoss us-gaap:ConsolidationItems

us-gaap:OperatingSegments


Operating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-30
Value9712312379841391419810913213788102119117889811211685961081087187
Percentage of OperatingIncomeLoss500.6265.3241.8970.4676.2120.6253.7360.4290.5224.3203.0410.8331.6236.9186.6505.9778.0227.6224.7292.5247.6204.1202.5383.4252.7
Percentage of Revenues46.752.953.039.445.655.855.343.250.654.755.741.450.954.251.845.254.858.157.043.652.154.153.839.348.9
Percentage of Revenues us-gaap:OperatingSegments46.652.90.039.445.655.80.043.250.554.60.041.346.354.10.043.953.356.50.042.350.552.50.038.147.4

Profit Loss

us-gaap:ProfitLoss

us-gaap:ProfitLoss


Profit
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value-11.0531524-21.424-15.422822519103149-2.737452639-1.233-2.65334259.8451846282.016157127-5.785132828478.66622251.0221320161.7922217144.0860.937-2.055
Percentage of ProfitLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues-5.36.910.6-10.6-8.332.910.18.54.713.020.2-1.322.911.917.4-0.6-1.517.912.75.010.123.114.31.18.937.013.9-3.28.015.815.530.15.613.516.30.912.218.615.21.824.917.615.04.81.3-2.6

us-gaap:ProfitLoss dei:LegalEntity

acc:AmericanCampusCommunitiesOperatingPartnershipLimitedPartnership


Profit
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-31
Value24-21.424-15.422822519103149-2.737452639-1.233-2.65334259.8451846282.016157127-5.785132828478.66622251.0221320161.7922217
Percentage of ProfitLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues10.6-10.6-8.332.910.18.54.713.020.2-1.322.911.917.4-0.6-1.517.912.75.010.123.114.31.18.937.013.9-3.28.015.815.530.15.613.516.30.912.218.615.21.824.917.6
Percentage of Revenues acc:AmericanCampusCommunitiesOperatingPartnershipLimitedPartnership0.0-10.6-8.332.910.18.54.713.020.2-1.322.911.917.4-0.6-1.517.912.75.010.123.114.31.18.937.013.9-3.28.015.815.530.15.613.516.30.912.218.615.41.924.918.0

Revenue From Contract With Customer Excluding Assessed Tax

us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax dei:LegalEntity, us-gaap:ProductOrService

us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax

acc:AmericanCampusCommunitiesOperatingPartnershipLimitedPartnership, acc:DevelopmentServices


Revenue
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value2.0122.1861.292.0550.6625.6113.6073.1713.3980.8352.2020.8466.0643.566
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues0.91.10.70.80.32.51.71.31.40.41.10.42.71.8
Percentage of Revenues acc:AmericanCampusCommunitiesOperatingPartnershipLimitedPartnership acc:DevelopmentServices0.00.00.00.00.00.00.00.00.00.00.00.00.00.0

acc:AmericanCampusCommunitiesOperatingPartnershipLimitedPartnership, acc:ResidentServices


Revenue
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value0.7570.6220.3020.720.8890.7260.7470.7820.8760.6920.7350.8570.8890.713
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax37.628.523.435.0134.312.920.724.725.882.933.4101.314.720.0
Percentage of Revenues0.30.30.20.30.30.30.30.30.40.30.40.40.40.4
Percentage of Revenues acc:AmericanCampusCommunitiesOperatingPartnershipLimitedPartnership acc:ResidentServices0.00.00.00.00.00.00.00.00.00.00.00.00.00.0

acc:AmericanCampusCommunitiesOperatingPartnershipLimitedPartnership, us-gaap:ManagementService


Revenue
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value3.1682.7712.6683.8293.8183.3423.4652.3112.5032.1282.4522.7312.6392.291
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax157.5126.8206.8186.3576.759.696.172.973.7254.9111.4322.843.564.2
Percentage of Revenues1.41.41.41.51.51.51.61.01.01.01.21.21.21.2
Percentage of Revenues acc:AmericanCampusCommunitiesOperatingPartnershipLimitedPartnership us-gaap:ManagementService0.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:ProductOrService

acc:DevelopmentServices


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value0.8661.9592.0122.1861.292.0550.6625.6113.6073.1713.3980.8352.2020.8466.0643.566
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues0.40.80.91.10.70.80.32.51.71.31.40.41.10.42.71.8
Percentage of Revenues acc:DevelopmentServices0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

acc:ResidentServices


Revenue
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value0.7570.6220.3020.720.8890.7260.7470.7820.8760.6920.7350.8570.8890.713
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax37.628.523.435.0134.312.920.724.725.882.933.4101.314.720.0
Percentage of Revenues0.30.30.20.30.30.30.30.30.40.30.40.40.40.4
Percentage of Revenues acc:ResidentServices0.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:ManagementService


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value2.8113.3613.1682.7712.6683.8293.8183.3423.4652.3112.5032.1282.4522.7312.6392.291
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.00.0157.5126.8206.8186.3576.759.696.172.973.7254.9111.4322.843.564.2
Percentage of Revenues1.31.41.41.41.41.51.51.51.61.01.01.01.21.21.21.2
Percentage of Revenues us-gaap:ManagementService0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Revenues

us-gaap:Revenues

us-gaap:Revenues


Revenues
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value208232232202185249255227217242245213201220227196179192203196185199202180177192196181171183182159154165155118106111105978910194857379
Percentage of Revenues100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:Revenues dei:LegalEntity

acc:AmericanCampusCommunitiesOperatingPartnershipLimitedPartnership


Revenuesdei:
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-31
Value232202185249255227217242245213201220227196179192203196185199202180177192196181171183182159154165155118106111104958999
Percentage of Revenues100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.099.197.9100.097.7
Percentage of Revenues100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.099.197.9100.097.7
Percentage of Revenues acc:AmericanCampusCommunitiesOperatingPartnershipLimitedPartnership100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:Revenues us-gaap:ConsolidationItems

us-gaap:CorporateNonSegment


Revenuesus-gaap:
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-09-302012-06-30
Value0.0880.0880.2480.7380.7480.7150.7160.7840.780.7660.7760.8490.8190.8210.820.850.8320.8331.1570.9251.2051.0140.860.8320.8150.8410.7870.7880.7550.7560.720.770.9370.410.4170.397
Percentage of Revenues0.00.00.10.40.40.30.30.30.40.30.30.40.40.40.40.40.50.40.60.50.60.50.40.50.50.40.40.40.40.40.40.50.60.20.40.4
Percentage of Revenues0.00.00.10.40.40.30.30.30.40.30.30.40.40.40.40.40.50.40.60.50.60.50.40.50.50.40.40.40.40.40.40.50.60.20.40.4
Percentage of Revenues us-gaap:CorporateNonSegment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OperatingSegments


Revenuesus-gaap:
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-09-302012-06-30
Value208232233202185249255227217242246213220220213202184198209202191206208186183198203187177189186164159168116104
Percentage of Revenues100.1100.1100.0100.1100.1100.1100.0100.1100.1100.1100.1100.2109.8100.293.7102.8102.9102.8102.9103.1103.2103.1103.1103.3103.3103.2103.2103.3103.4103.3102.1103.3103.4101.898.397.8
Percentage of Revenues100.1100.1100.0100.1100.1100.1100.0100.1100.1100.1100.1100.2109.8100.293.7102.8102.9102.8102.9103.1103.2103.1103.1103.3103.3103.2103.2103.3103.4103.3102.1103.3103.4101.898.397.8
Percentage of Revenues us-gaap:OperatingSegments100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:Revenues us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments

us-gaap:OperatingSegments, acc:OnCampusParticipatingProperties


Revenuesus-gaap:
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-09-302012-06-30
Value5.2248.9639.7135.3884.10810117.0036.46611117.0236.22310106.8236.18610106.766.21610106.5665.7049.29.8255.7834.7388.1918.4815.0744.7058.1045.0914.716
Percentage of Revenues2.53.94.22.72.24.34.53.13.04.74.53.33.14.74.83.53.55.35.13.43.35.05.03.63.24.85.03.22.84.54.63.23.04.94.34.4
Percentage of Revenues2.53.94.22.72.24.34.53.13.04.74.53.33.14.74.83.53.55.35.13.43.35.05.03.63.24.85.03.22.84.54.63.23.04.94.34.4
Percentage of Revenues us-gaap:OperatingSegments acc:OnCampusParticipatingProperties100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OperatingSegments, acc:OwnedProperties


Revenuesus-gaap:
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value199218218192177232239211204225229203
Percentage of Revenues95.993.993.795.095.793.493.893.193.993.193.295.5
Percentage of Revenues95.993.993.795.095.793.493.893.193.993.193.295.5
Percentage of Revenues us-gaap:OperatingSegments acc:OwnedProperties100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OperatingSegments, acc:PropertyManagementServices


Revenuesus-gaap:
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-09-302012-06-30
Value2.8113.3613.1682.7712.6683.8293.8183.3427.4197.0577.5528.3578.2067.8828.3618.1427.9257.9317.8697.9117.4627.5137.6727.6067.0857.1357.0845.7365.363
Percentage of Revenues1.31.41.41.41.41.51.51.53.83.93.94.14.24.24.24.04.44.54.14.04.14.44.24.24.54.64.34.85.0
Percentage of Revenues1.31.41.41.41.41.51.51.53.83.93.94.14.24.24.24.04.44.54.14.04.14.44.24.24.54.64.34.85.0
Percentage of Revenues us-gaap:OperatingSegments acc:PropertyManagementServices100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Assets

us-gaap:Assets

us-gaap:Assets


Assets
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302009-12-31
Value7538751875317581751476197559766873827325703870466905700668976686622459875865627963156367602560265810581958345753572056205598532052915160511842143240311530082705262126292693266021502234
Percentage of Assets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:Assets dei:LegalEntity

acc:AmericanCampusCommunitiesOperatingPartnershipLimitedPartnership


Assetsdei:
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-31
Value7531758175147619755976687382732570387046690570066897668662245987586562796315636760256026581058195834575357205620559853205291516051184214324031153008
Percentage of Assets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets acc:AmericanCampusCommunitiesOperatingPartnershipLimitedPartnership100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:Assets dei:LegalEntity, us-gaap:BalanceSheetLocation, us-gaap:InvestmentsByConsolidatedAndNonconsolidatedEntities

acc:AmericanCampusCommunitiesOperatingPartnershipLimitedPartnership, us-gaap:CashAndCashEquivalents, us-gaap:VariableInterestEntityPrimaryBeneficiary


Assetsdei:
Period End2020-09-302019-12-31
Value3659
Percentage of Assets0.50.8
Percentage of Assets0.50.8
Percentage of Assets acc:AmericanCampusCommunitiesOperatingPartnershipLimitedPartnership us-gaap:CashAndCashEquivalents us-gaap:VariableInterestEntityPrimaryBeneficiary100.0100.0

acc:AmericanCampusCommunitiesOperatingPartnershipLimitedPartnership, us-gaap:OtherAssets, us-gaap:VariableInterestEntityPrimaryBeneficiary


Assetsdei:
Period End2020-09-302019-12-31
Value1518
Percentage of Assets0.20.2
Percentage of Assets0.20.2
Percentage of Assets acc:AmericanCampusCommunitiesOperatingPartnershipLimitedPartnership us-gaap:OtherAssets us-gaap:VariableInterestEntityPrimaryBeneficiary100.0100.0

acc:AmericanCampusCommunitiesOperatingPartnershipLimitedPartnership, us-gaap:RealEstateInvestment, us-gaap:VariableInterestEntityPrimaryBeneficiary


Assetsdei:
Period End2020-09-302019-12-31
Value598788
Percentage of Assets7.910.4
Percentage of Assets7.910.4
Percentage of Assets acc:AmericanCampusCommunitiesOperatingPartnershipLimitedPartnership us-gaap:RealEstateInvestment us-gaap:VariableInterestEntityPrimaryBeneficiary100.0100.0

us-gaap:Assets dei:LegalEntity, us-gaap:ConsolidatedEntities, us-gaap:BalanceSheetLocation

acc:AmericanCampusCommunitiesOperatingPartnershipLimitedPartnership, us-gaap:VariableInterestEntityPrimaryBeneficiary, us-gaap:CashAndCashEquivalents


Assetsdei:
Period End2020-12-312020-06-302020-03-312019-12-31
Value41363759
Percentage of Assets0.50.50.50.8
Percentage of Assets0.50.50.50.8
Percentage of Assets acc:AmericanCampusCommunitiesOperatingPartnershipLimitedPartnership us-gaap:VariableInterestEntityPrimaryBeneficiary us-gaap:CashAndCashEquivalents100.0100.0100.0100.0

acc:AmericanCampusCommunitiesOperatingPartnershipLimitedPartnership, us-gaap:VariableInterestEntityPrimaryBeneficiary, us-gaap:OtherAssets


Assetsdei:
Period End2020-12-312020-06-302020-03-312019-12-31
Value13141418
Percentage of Assets0.20.20.20.2
Percentage of Assets0.20.20.20.2
Percentage of Assets acc:AmericanCampusCommunitiesOperatingPartnershipLimitedPartnership us-gaap:VariableInterestEntityPrimaryBeneficiary us-gaap:OtherAssets100.0100.0100.0100.0

acc:AmericanCampusCommunitiesOperatingPartnershipLimitedPartnership, us-gaap:VariableInterestEntityPrimaryBeneficiary, us-gaap:RealEstateInvestment


Assetsdei:
Period End2020-12-312020-06-302020-03-312019-12-31
Value592591596788
Percentage of Assets7.97.97.810.4
Percentage of Assets7.97.97.810.4
Percentage of Assets acc:AmericanCampusCommunitiesOperatingPartnershipLimitedPartnership us-gaap:VariableInterestEntityPrimaryBeneficiary us-gaap:RealEstateInvestment100.0100.0100.0100.0

us-gaap:Assets us-gaap:BalanceSheetLocation, us-gaap:InvestmentsByConsolidatedAndNonconsolidatedEntities

us-gaap:CashAndCashEquivalents, us-gaap:VariableInterestEntityPrimaryBeneficiary


Assetsus-gaap:
Period End2020-09-302019-12-31
Value3659
Percentage of Assets0.50.8
Percentage of Assets0.50.8
Percentage of Assets us-gaap:CashAndCashEquivalents us-gaap:VariableInterestEntityPrimaryBeneficiary100.0100.0

us-gaap:OtherAssets, us-gaap:VariableInterestEntityPrimaryBeneficiary


Assetsus-gaap:
Period End2020-09-302019-12-31
Value1518
Percentage of Assets0.20.2
Percentage of Assets0.20.2
Percentage of Assets us-gaap:OtherAssets us-gaap:VariableInterestEntityPrimaryBeneficiary100.0100.0

us-gaap:RealEstateInvestment, us-gaap:VariableInterestEntityPrimaryBeneficiary


Assetsus-gaap:
Period End2020-09-302019-12-31
Value598788
Percentage of Assets7.910.4
Percentage of Assets7.910.4
Percentage of Assets us-gaap:RealEstateInvestment us-gaap:VariableInterestEntityPrimaryBeneficiary100.0100.0

us-gaap:Assets us-gaap:ConsolidatedEntities, us-gaap:BalanceSheetLocation

us-gaap:VariableInterestEntityPrimaryBeneficiary, us-gaap:CashAndCashEquivalents


Assetsus-gaap:
Period End2021-06-302021-03-312020-12-312020-06-302020-03-312019-12-31
Value313141363759
Percentage of Assets0.40.40.50.50.50.8
Percentage of Assets0.40.40.50.50.50.8
Percentage of Assets us-gaap:VariableInterestEntityPrimaryBeneficiary us-gaap:CashAndCashEquivalents100.0100.0100.0100.0100.0100.0

us-gaap:VariableInterestEntityPrimaryBeneficiary, us-gaap:OtherAssets


Assetsus-gaap:
Period End2021-06-302021-03-312020-12-312020-06-302020-03-312019-12-31
Value171513141418
Percentage of Assets0.20.20.20.20.20.2
Percentage of Assets0.20.20.20.20.20.2
Percentage of Assets us-gaap:VariableInterestEntityPrimaryBeneficiary us-gaap:OtherAssets100.0100.0100.0100.0100.0100.0

us-gaap:VariableInterestEntityPrimaryBeneficiary, us-gaap:RealEstateInvestment


Assetsus-gaap:
Period End2021-06-302021-03-312020-12-312020-06-302020-03-312019-12-31
Value580586592591596788
Percentage of Assets7.77.87.97.97.810.4
Percentage of Assets7.77.87.97.97.810.4
Percentage of Assets us-gaap:VariableInterestEntityPrimaryBeneficiary us-gaap:RealEstateInvestment100.0100.0100.0100.0100.0100.0

us-gaap:Assets us-gaap:ConsolidationItems

us-gaap:CorporateNonSegment


Assetsus-gaap:
Period End2020-12-312019-12-312018-12-312018-03-312017-12-312017-03-312016-12-312015-12-31
Value5393879591957986
Percentage of Assets0.71.21.21.41.31.61.41.4
Percentage of Assets0.71.21.21.41.31.61.41.4
Percentage of Assets us-gaap:CorporateNonSegment100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OperatingSegments


Assetsus-gaap:
Period End2020-12-312019-12-312018-12-312018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-09-302012-06-30
Value7477746669516911680666866224598758656279631563676006602658105819581657535720562053205291516042143240
Percentage of Assets99.398.898.898.698.7100.0100.0100.0100.0100.0100.0100.099.7100.0100.0100.099.7100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets99.398.898.898.698.7100.0100.0100.0100.0100.0100.0100.099.7100.0100.0100.099.7100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets us-gaap:OperatingSegments100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:Assets us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments

us-gaap:OperatingSegments, acc:DevelopmentServices


Assetsus-gaap:
Period End2020-12-312019-12-312018-12-312018-03-312017-12-312017-03-312016-12-312015-12-31
Value1313105.1446.7262.1342.6011.73
Percentage of Assets0.20.20.10.10.10.00.00.0
Percentage of Assets0.20.20.10.10.10.00.00.0
Percentage of Assets us-gaap:OperatingSegments acc:DevelopmentServices100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OperatingSegments, acc:OnCampusParticipatingProperties


Assetsus-gaap:
Period End2020-12-312019-12-312018-12-312018-03-312017-12-312017-03-312016-12-312015-12-31
Value869793101100104103104
Percentage of Assets1.11.31.31.41.51.71.81.7
Percentage of Assets1.11.31.31.41.51.71.81.7
Percentage of Assets us-gaap:OperatingSegments acc:OnCampusParticipatingProperties100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OperatingSegments, acc:OwnedProperties


Assetsus-gaap:
Period End2020-12-312019-12-312018-12-312017-12-31
Value7368734668416691
Percentage of Assets97.897.297.297.0
Percentage of Assets97.897.297.297.0
Percentage of Assets us-gaap:OperatingSegments acc:OwnedProperties100.0100.0100.0100.0

us-gaap:OperatingSegments, acc:PropertyManagementServices


Assetsus-gaap:
Period End2020-12-312019-12-312018-12-312018-03-312017-12-312017-03-312016-12-312015-12-31
Value8.398.8886.4267.3457.5768.9037.9979.432
Percentage of Assets0.10.10.10.10.10.10.10.2
Percentage of Assets0.10.10.10.10.10.10.10.2
Percentage of Assets us-gaap:OperatingSegments acc:PropertyManagementServices100.0100.0100.0100.0100.0100.0100.0100.0

Liabilities

us-gaap:Liabilities

us-gaap:Liabilities


Liabilities
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value44374385435043654222424941164130375636353307329930893399326630602601243023602761281628273184316929172899316431533083295329192633259524402384200017411598156213511295137314401295
Percentage of Liabilities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets58.958.357.857.656.255.854.553.950.949.647.046.844.748.547.445.841.840.640.244.044.644.452.952.650.249.854.254.853.952.552.249.549.047.346.647.553.751.351.950.049.452.353.558.0

us-gaap:Liabilities dei:LegalEntity

acc:AmericanCampusCommunitiesOperatingPartnershipLimitedPartnership


Liabilitiesdei:
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-31
Value4350436542224249411641303756363533073299308933993266306026012430236027612816282731843169291728993164315330832953291926332595244023842000174115981562
Percentage of Liabilities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets57.857.656.255.854.553.950.949.647.046.844.748.547.445.841.840.640.244.044.644.452.952.650.249.854.254.853.952.552.249.549.047.346.647.553.751.351.9
Percentage of Assets acc:AmericanCampusCommunitiesOperatingPartnershipLimitedPartnership57.857.656.255.854.553.950.949.647.046.844.748.547.445.841.840.640.244.044.644.452.952.650.249.854.254.853.952.552.249.549.047.346.647.553.751.351.9

us-gaap:Liabilities dei:LegalEntity, us-gaap:BalanceSheetLocation, us-gaap:InvestmentsByConsolidatedAndNonconsolidatedEntities

acc:AmericanCampusCommunitiesOperatingPartnershipLimitedPartnership, us-gaap:AccountsPayableAndAccruedLiabilities, us-gaap:VariableInterestEntityPrimaryBeneficiary


Liabilitiesdei:
Period End2020-09-302019-12-31
Value4856
Percentage of Liabilities1.11.4
Percentage of Assets0.60.8
Percentage of Assets acc:AmericanCampusCommunitiesOperatingPartnershipLimitedPartnership us-gaap:AccountsPayableAndAccruedLiabilities us-gaap:VariableInterestEntityPrimaryBeneficiary0.00.0

acc:AmericanCampusCommunitiesOperatingPartnershipLimitedPartnership, us-gaap:SecuredDebt, us-gaap:VariableInterestEntityPrimaryBeneficiary


Liabilitiesdei:
Period End2020-09-302019-12-31
Value412418
Percentage of Liabilities9.510.2
Percentage of Assets5.45.5
Percentage of Assets acc:AmericanCampusCommunitiesOperatingPartnershipLimitedPartnership us-gaap:SecuredDebt us-gaap:VariableInterestEntityPrimaryBeneficiary0.00.0

us-gaap:Liabilities dei:LegalEntity, us-gaap:ConsolidatedEntities, us-gaap:BalanceSheetLocation

acc:AmericanCampusCommunitiesOperatingPartnershipLimitedPartnership, us-gaap:VariableInterestEntityPrimaryBeneficiary, us-gaap:AccountsPayableAndAccruedLiabilities


Liabilitiesdei:
Period End2020-12-312020-06-302020-03-312019-12-31
Value46403456
Percentage of Liabilities1.10.90.81.4
Percentage of Assets0.60.50.50.8
Percentage of Assets acc:AmericanCampusCommunitiesOperatingPartnershipLimitedPartnership us-gaap:VariableInterestEntityPrimaryBeneficiary us-gaap:AccountsPayableAndAccruedLiabilities0.00.00.00.0

acc:AmericanCampusCommunitiesOperatingPartnershipLimitedPartnership, us-gaap:VariableInterestEntityPrimaryBeneficiary, us-gaap:SecuredDebt


Liabilitiesdei:
Period End2020-12-312020-06-302020-03-312019-12-31
Value410417417418
Percentage of Liabilities9.49.99.810.2
Percentage of Assets5.55.65.55.5
Percentage of Assets acc:AmericanCampusCommunitiesOperatingPartnershipLimitedPartnership us-gaap:VariableInterestEntityPrimaryBeneficiary us-gaap:SecuredDebt0.00.00.00.0

us-gaap:Liabilities us-gaap:BalanceSheetLocation, us-gaap:InvestmentsByConsolidatedAndNonconsolidatedEntities

us-gaap:AccountsPayableAndAccruedLiabilities, us-gaap:VariableInterestEntityPrimaryBeneficiary


Liabilitiesus-gaap:
Period End2020-09-302019-12-31
Value4856
Percentage of Liabilities1.11.4
Percentage of Assets0.60.8
Percentage of Assets us-gaap:AccountsPayableAndAccruedLiabilities us-gaap:VariableInterestEntityPrimaryBeneficiary0.00.0

us-gaap:SecuredDebt, us-gaap:VariableInterestEntityPrimaryBeneficiary


Liabilitiesus-gaap:
Period End2020-09-302019-12-31
Value412418
Percentage of Liabilities9.510.2
Percentage of Assets5.45.5
Percentage of Assets us-gaap:SecuredDebt us-gaap:VariableInterestEntityPrimaryBeneficiary0.00.0

us-gaap:Liabilities us-gaap:ConsolidatedEntities, us-gaap:BalanceSheetLocation

us-gaap:VariableInterestEntityPrimaryBeneficiary, us-gaap:AccountsPayableAndAccruedLiabilities


Liabilitiesus-gaap:
Period End2021-06-302021-03-312020-12-312020-06-302020-03-312019-12-31
Value393246403456
Percentage of Liabilities0.90.71.10.90.81.4
Percentage of Assets0.50.40.60.50.50.8
Percentage of Assets us-gaap:VariableInterestEntityPrimaryBeneficiary us-gaap:AccountsPayableAndAccruedLiabilities0.00.00.00.00.00.0

us-gaap:VariableInterestEntityPrimaryBeneficiary, us-gaap:SecuredDebt


Liabilitiesus-gaap:
Period End2021-06-302021-03-312020-12-312020-06-302020-03-312019-12-31
Value410411410417417418
Percentage of Liabilities9.39.49.49.99.810.2
Percentage of Assets5.45.55.55.65.55.5
Percentage of Assets us-gaap:VariableInterestEntityPrimaryBeneficiary us-gaap:SecuredDebt0.00.00.00.00.00.0

Liabilities And Stockholders Equity

us-gaap:LiabilitiesAndStockholdersEquity

us-gaap:LiabilitiesAndStockholdersEquity


Liabilities
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value75387518753175817514761975597668738273257038704669057006689766866224598758656279631563676025602658105819583457535720562055985320529151605118421432403115300827052621262926932234
Percentage of LiabilitiesAndStockholdersEquity100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:LiabilitiesAndStockholdersEquity dei:LegalEntity

acc:AmericanCampusCommunitiesOperatingPartnershipLimitedPartnership


Liabilities
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-31
Value7531758175147619755976687382732570387046690570066897668662245987586562796315636760256026581058195834575357205620559853205291516051184214324031153008
Percentage of LiabilitiesAndStockholdersEquity100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets acc:AmericanCampusCommunitiesOperatingPartnershipLimitedPartnership100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Stockholders Equity

us-gaap:StockholdersEquity

us-gaap:StockholdersEquity


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value3035306731143152323233093294333033793438348134973614345634843500355434873444345034203462277027852826284826092543257826082624263026152634264821281427144313751312128612181213899
Percentage of StockholdersEquity100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets40.340.841.341.643.043.443.643.445.846.949.549.652.349.350.552.357.158.258.754.954.254.446.046.248.748.944.744.245.146.446.949.549.451.051.750.544.146.345.748.549.146.345.140.2

Cash And Cash Equivalents At Carrying Value

us-gaap:CashAndCashEquivalentsAtCarryingValue

us-gaap:CashAndCashEquivalentsAtCarryingValue


Cash
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312008-12-312007-12-31
Value3041544431176545651467150525541162534223220638716458.76517251964313825251521181732222848311132032021662512
Percentage of CashAndCashEquivalentsAtCarryingValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.40.50.70.60.42.30.70.70.70.61.00.70.80.80.60.20.40.60.40.53.36.10.30.80.20.30.40.31.10.60.70.50.50.30.40.40.51.00.71.11.81.24.27.71.00.03.00.00.0

us-gaap:CashAndCashEquivalentsAtCarryingValue dei:LegalEntity

acc:AmericanCampusCommunitiesOperatingPartnershipLimitedPartnership


Cash
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value544431176545651467150525541162534223220638716458.765172519643138252515211817322228483111366
Percentage of CashAndCashEquivalentsAtCarryingValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.70.60.42.30.70.70.70.61.00.70.80.80.60.20.40.60.40.53.36.10.30.80.20.30.40.31.10.60.70.50.50.30.40.40.51.00.71.11.81.24.23.0
Percentage of Assets acc:AmericanCampusCommunitiesOperatingPartnershipLimitedPartnership0.70.60.42.30.70.70.70.61.00.70.80.80.60.20.40.60.40.53.36.10.30.80.20.30.40.31.10.60.70.50.50.30.40.40.51.00.70.00.00.00.00.0

Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents


Cash
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312015-12-31
Value576573676020881858879106908783644253584650
Percentage of CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.80.91.00.90.82.71.11.11.21.11.51.31.31.20.90.60.91.00.80.8

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents dei:LegalEntity

acc:AmericanCampusCommunitiesOperatingPartnershipLimitedPartnership


Cash
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302016-12-312015-12-31
Value736760208818588791069087836442534650
Percentage of CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets1.00.90.82.71.11.11.21.11.51.31.31.20.90.60.90.80.8
Percentage of Assets acc:AmericanCampusCommunitiesOperatingPartnershipLimitedPartnership1.00.90.82.71.11.11.21.11.51.31.31.20.90.60.90.80.8

Land

us-gaap:Land us-gaap:RealEstateProperties

us-gaap:Land

acc:OwnedProperties


Landus-gaap:
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302018-12-31
Value677665664654643643654657653
Percentage of Land100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets9.08.88.88.68.68.48.78.69.3
Percentage of Assets acc:OwnedProperties0.00.00.00.00.00.00.00.00.0

Furniture And Fixtures Gross

us-gaap:FurnitureAndFixturesGross us-gaap:RealEstateProperties

us-gaap:FurnitureAndFixturesGross

acc:OnCampusParticipatingProperties


Furniture
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312018-12-31
Value1414141414131311
Percentage of FurnitureAndFixturesGross100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.20.20.20.20.20.20.20.2
Percentage of Assets acc:OnCampusParticipatingProperties0.00.00.00.00.00.00.00.0

acc:OwnedProperties


Furniture
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302018-12-31
Value416409405412397389391392371
Percentage of FurnitureAndFixturesGross2860.12839.32820.52870.62821.32842.72886.70.03143.2
Percentage of Assets5.55.55.45.45.35.15.25.15.3
Percentage of Assets acc:OwnedProperties0.00.00.00.00.00.00.00.00.0

Construction In Progress Gross

us-gaap:ConstructionInProgressGross us-gaap:RealEstateProperties

us-gaap:ConstructionInProgressGross

acc:OnCampusParticipatingProperties


Construction
Period End2021-06-302021-03-312020-06-302020-03-312019-12-312018-12-31
Value0.110.0650.00.00.0060.658
Percentage of ConstructionInProgressGross100.0100.00.00.0100.0100.0
Percentage of Assets0.00.00.00.00.00.0
Percentage of Assets acc:OnCampusParticipatingProperties0.00.00.00.00.00.0

acc:OwnedProperties


Construction
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302018-12-31
Value306352361310456437341272302
Percentage of ConstructionInProgressGross278300.0541758.50.00.00.00.05692566.70.046033.7
Percentage of Assets4.14.74.84.16.15.74.53.64.3
Percentage of Assets acc:OwnedProperties0.00.00.00.00.00.00.00.00.0

Finite Lived Intangible Assets Net

us-gaap:FiniteLivedIntangibleAssetsNet us-gaap:FiniteLivedIntangibleAssetsByMajorClass

us-gaap:FiniteLivedIntangibleAssetsNet

acc:PropertyTaxAbatement


Finite
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312015-09-302015-06-302015-03-312014-12-312013-12-31
Value3438566155565856423637
Percentage of FiniteLivedIntangibleAssetsNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.50.50.80.90.90.91.01.00.70.60.7
Percentage of Assets acc:PropertyTaxAbatement0.00.00.00.00.00.00.00.00.00.00.0

Operating Lease Right Of Use Asset

us-gaap:OperatingLeaseRightOfUseAsset

us-gaap:OperatingLeaseRightOfUseAsset


Operating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value457456457458459459460461279280
Percentage of OperatingLeaseRightOfUseAsset100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets6.16.16.16.06.16.06.16.03.83.8

us-gaap:OperatingLeaseRightOfUseAsset dei:LegalEntity

acc:AmericanCampusCommunitiesOperatingPartnershipLimitedPartnership


Operating
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-30
Value457458459459460461
Percentage of OperatingLeaseRightOfUseAsset100.0100.0100.0100.0100.0100.0
Percentage of Assets6.16.06.16.06.16.0
Percentage of Assets acc:AmericanCampusCommunitiesOperatingPartnershipLimitedPartnership6.16.06.16.06.16.0

Other Assets

us-gaap:OtherAssets

us-gaap:OtherAssets


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value2332021972572532282342575315372623092972882912842752702722692572692892912632372332362302212271511791151171111031101087162535152
Percentage of OtherAssets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets3.12.72.63.43.43.03.13.47.27.33.74.44.34.14.24.24.44.54.64.34.14.24.84.84.54.14.04.14.03.94.12.83.42.22.32.63.23.53.62.62.42.01.92.4

us-gaap:OtherAssets dei:LegalEntity

acc:AmericanCampusCommunitiesOperatingPartnershipLimitedPartnership


Other
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-31
Value197257253228234257531537262309297288291284275270272269257269289291263237233236230221227151179115117111103110108
Percentage of OtherAssets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets2.63.43.43.03.13.47.27.33.74.44.34.14.24.24.44.54.64.34.14.24.84.84.54.14.04.14.03.94.12.83.42.22.32.63.23.53.6
Percentage of Assets acc:AmericanCampusCommunitiesOperatingPartnershipLimitedPartnership2.63.43.43.03.13.47.27.33.74.44.34.14.24.24.44.54.64.34.14.24.84.84.54.14.04.14.03.94.12.83.42.22.32.63.23.53.6

Long Term Debt

us-gaap:LongTermDebt

us-gaap:LongTermDebt


Long
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-31
Value372736723593359035063540339733633241310930272973282731343024276623602208212524842590262329672921273327242972292429112790274424342450229122211829162614871447123712071345
Percentage of LongTermDebt100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets49.448.947.747.446.746.544.943.943.942.443.042.240.944.743.941.437.936.936.239.641.041.249.348.547.046.850.950.850.949.649.045.846.344.443.443.450.247.748.145.746.149.9

us-gaap:LongTermDebt us-gaap:LongtermDebtType

us-gaap:Mortgages


Long
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-31
Value6277597955666581058118414041406781994
Percentage of LongTermDebt17.522.426.318.731.035.739.851.263.354.074.0
Percentage of Assets8.310.011.38.211.217.620.325.127.526.036.9
Percentage of Assets us-gaap:Mortgages0.00.00.00.00.00.00.00.00.00.00.0

us-gaap:LongTermDebt us-gaap:RealEstateProperties

acc:OnCampusParticipatingProperties


Long
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302012-12-31
Value808182838788888993939494989999100103104104105108109110110114114114112109101897776
Percentage of LongTermDebt2.22.22.32.32.52.52.62.72.93.03.13.23.53.23.33.64.44.74.94.24.24.23.73.84.24.23.83.93.83.63.33.23.5
Percentage of Assets1.11.11.11.11.21.21.21.21.31.31.31.31.41.41.41.51.71.71.81.71.71.71.81.82.02.02.02.01.91.81.61.51.5
Percentage of Assets acc:OnCampusParticipatingProperties0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

acc:OwnedProperties


Long
Period End2020-12-312019-12-312019-09-302018-12-31
Value564698738758
Percentage of LongTermDebt15.720.622.025.1
Percentage of Assets7.59.29.610.8
Percentage of Assets acc:OwnedProperties0.00.00.00.0

Minority Interest

us-gaap:MinorityInterest

us-gaap:MinorityInterest


Minority
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302018-12-312012-09-302011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value38414242384243506528283.643.6373.6673.9333.744
Percentage of MinorityInterest100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.50.60.60.60.50.60.60.70.90.71.00.10.10.10.10.2

Lessee Operating Lease Liability Payments Due Year Two

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearTwo

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearTwo


Lessee
Period End2020-12-31
Value23
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueYearTwo100.0
Percentage of Assets0.3

Lessee Operating Lease Liability Payments Due Year Three

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearThree

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearThree


Lessee
Period End2020-12-31
Value28
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueYearThree100.0
Percentage of Assets0.4

Lessee Operating Lease Liability Payments Due Year Four

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFour

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFour


Lessee
Period End2020-12-31
Value29
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueYearFour100.0
Percentage of Assets0.4

Lessee Operating Lease Liability Payments Due Year Five

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFive

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFive


Lessee
Period End2020-12-31
Value29
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueYearFive100.0
Percentage of Assets0.4

Lessee Operating Lease Liability Payments Due After Year Five

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive


Lessee
Period End2020-12-31
Value1632
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive100.0
Percentage of Assets21.7

Operating Lease Liability

us-gaap:OperatingLeaseLiability

us-gaap:OperatingLeaseLiability


Operating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value495490486483482477473469285282
Percentage of OperatingLeaseLiability100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets6.66.56.56.46.46.36.36.13.93.9

us-gaap:OperatingLeaseLiability dei:LegalEntity

acc:AmericanCampusCommunitiesOperatingPartnershipLimitedPartnership


Operating
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value4864834824774734692852820.0
Percentage of OperatingLeaseLiability100.0100.0100.0100.0100.0100.0100.0100.00.0
Percentage of Assets6.56.46.46.36.36.13.93.90.0
Percentage of Assets acc:AmericanCampusCommunitiesOperatingPartnershipLimitedPartnership6.56.46.46.36.36.13.93.90.0

Lessee Operating Lease Liability Payments Due

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDue

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDue


Lessee
Period End2020-12-31
Value1759
Percentage of LesseeOperatingLeaseLiabilityPaymentsDue100.0
Percentage of Assets23.4

Lessee Operating Lease Liability Undiscounted Excess Amount

us-gaap:LesseeOperatingLeaseLiabilityUndiscountedExcessAmount

us-gaap:LesseeOperatingLeaseLiabilityUndiscountedExcessAmount


Lessee
Period End2020-12-31
Value1273
Percentage of LesseeOperatingLeaseLiabilityUndiscountedExcessAmount100.0
Percentage of Assets16.9

Stockholders Equity

us-gaap:StockholdersEquity

us-gaap:StockholdersEquity


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value3035306731143152323233093294333033793438348134973614345634843500355434873444345034203462277027852826284826092543257826082624263026152634264821281427144313751312128612181213899
Percentage of StockholdersEquity100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets40.340.841.341.643.043.443.643.445.846.949.549.652.349.350.552.357.158.258.754.954.254.446.046.248.748.944.744.245.146.446.949.549.451.051.750.544.146.345.748.549.146.345.140.2

Stockholders Equity Including Portion Attributable To Noncontrolling Interest

us-gaap:StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest

us-gaap:StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-312008-12-312007-12-31
Value3074310831563195327133523338338034403503354635623684348034983513356735013450345434243473278127962830285226152549258426142630263626432663267721571456147114031316128912211217902789432
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets40.841.341.942.243.544.044.244.146.647.850.450.653.449.750.752.557.358.558.855.054.254.646.246.448.749.044.844.345.246.547.049.650.051.652.351.244.947.246.748.749.246.545.240.40.00.0

us-gaap:StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest us-gaap:RealEstateProperties, us-gaap:StatementEquityComponents

us-gaap:PartiallyOwnedProperties, us-gaap:NoncontrollingInterest


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-31
Value3841424238424350606465656923131313135.5024.1254.1611111104.0984.1585.7295.645.6665.6955.6645.482282828
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest1.31.31.31.31.21.31.31.51.81.81.91.81.90.70.40.40.40.40.20.10.10.30.40.40.10.10.20.20.20.20.20.21.11.11.1
Percentage of Assets0.50.60.60.60.50.60.60.70.80.90.90.91.00.30.20.20.20.20.10.10.10.20.20.20.10.10.10.10.10.10.10.10.50.60.6
Percentage of Assets us-gaap:PartiallyOwnedProperties us-gaap:NoncontrollingInterest0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest us-gaap:StatementEquityComponents

acc:CommonStockHeldinRabbiTrust


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-31
Value-4.73-4.326-3.951-3.951-3.951-3.615-3.486-3.486-3.368-3.162-3.092-3.092-3.092-2.817-2.944-2.944-1.688-1.223-0.975
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest-0.2-0.1-0.1-0.1-0.1-0.1-0.1-0.1-0.1-0.1-0.1-0.1-0.1-0.1-0.1-0.1-0.0-0.0-0.0
Percentage of Assets-0.1-0.1-0.1-0.1-0.1-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0
Percentage of Assets acc:CommonStockHeldinRabbiTrust0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:AccumulatedOtherComprehensiveIncome


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-312008-12-312007-12-31
Value-18.908-20.259-22.777-24.614-26.465-26.747-16.946-18.929-18.784-10.191-4.397-1.975-2.056-2.236-2.701-3.195-3.428-3.583-4.067-5.992-7.263-7.24-5.83-8.207-6.891-7.838-6.072-5.114-7.29-2.428-1.435-2.21-1.047-5.848-6.661-7.551-5.1650.044-3.36-4.108-4.576-4.758-5.503-4.356-5.117-1.875
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest-0.6-0.7-0.7-0.8-0.8-0.8-0.5-0.6-0.5-0.3-0.1-0.1-0.1-0.1-0.1-0.1-0.1-0.1-0.1-0.2-0.2-0.2-0.2-0.3-0.2-0.3-0.2-0.2-0.3-0.1-0.1-0.1-0.0-0.2-0.2-0.4-0.40.0-0.2-0.3-0.4-0.4-0.5-0.5-0.6-0.4
Percentage of Assets-0.3-0.3-0.3-0.3-0.4-0.4-0.2-0.2-0.3-0.1-0.1-0.0-0.0-0.0-0.0-0.0-0.1-0.1-0.1-0.1-0.1-0.1-0.1-0.1-0.1-0.1-0.1-0.1-0.1-0.0-0.0-0.0-0.0-0.1-0.1-0.2-0.20.0-0.1-0.2-0.2-0.2-0.2-0.20.00.0
Percentage of Assets us-gaap:AccumulatedOtherComprehensiveIncome0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:AdditionalPaidInCapital


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-312008-12-312007-12-31
Value45154472447244724469446744584455446044554458445645074332432643214312418341184095402140263325332633233315310230223013301130173014300630003001247017371734166415941546147614681092901478
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest146.9143.9141.7140.0136.6133.3133.5131.8129.6127.2125.7125.1122.3124.5123.7123.0120.9119.5119.4118.6117.4115.9119.6119.0117.4116.2118.6118.6116.6115.2114.7114.3113.7112.7112.1114.5119.3117.8118.6121.1119.9120.9120.6121.0114.2110.5
Percentage of Assets59.959.559.459.059.558.659.058.160.460.863.363.265.361.862.764.669.369.970.265.263.763.255.255.257.257.053.252.552.753.653.956.756.858.158.658.653.655.755.358.959.056.254.548.90.00.0
Percentage of Assets us-gaap:AdditionalPaidInCapital0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:CommonStock


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-312008-12-31
Value1.3861.3781.3751.3751.3751.3751.3731.3731.3721.371.371.371.3661.3661.3641.3641.3631.3361.3221.3191.3041.3041.1241.1231.1231.1231.0721.0441.0431.0431.0431.0431.0431.0431.0430.9170.7440.7430.7250.7060.6930.6720.6670.5210.423
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.10.10.10.10.10.10.10.10.1
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of Assets us-gaap:CommonStock0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:RetainedEarnings


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-312008-12-312007-12-31
Value-1457.273-1382.492-1332.689-1292.364-1207.645-1129.108-1144.721-1104.448-1059.633-1005.041-971.07-955.31-889.524-872.281-837.644-816.36-754.66-692.51-670.137-639.698-594.115-557.427-550.501-533.708-490.368-460.753-487.986-474.659-428.676-401.983-392.338-382.231-391.468-361.575-347.521-335.667-305.054-291.962-286.565-278.322-256.308-254.788-249.381-189.165-111.828-48.181
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest-47.4-44.5-42.2-40.4-36.9-33.7-34.3-32.7-30.8-28.7-27.4-26.8-24.1-25.1-23.9-23.2-21.2-19.8-19.4-18.5-17.3-16.0-19.8-19.1-17.3-16.2-18.7-18.6-16.6-15.4-14.9-14.5-14.8-13.6-13.0-15.6-20.9-19.8-20.4-21.1-19.9-20.9-20.5-21.0-14.2-11.1
Percentage of Assets-19.3-18.4-17.7-17.0-16.1-14.8-15.1-14.4-14.4-13.7-13.8-13.6-12.9-12.4-12.1-12.2-12.1-11.6-11.4-10.2-9.4-8.8-9.1-8.9-8.4-7.9-8.4-8.2-7.5-7.2-7.0-7.2-7.4-7.0-6.8-8.0-9.4-9.4-9.5-10.3-9.8-9.7-9.3-8.50.00.0
Percentage of Assets us-gaap:RetainedEarnings0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Additional Paid In Capital Common Stock

us-gaap:AdditionalPaidInCapitalCommonStock

us-gaap:AdditionalPaidInCapitalCommonStock


Additional
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value45154472447244724469446744584455446044554458445645074332432643214312418341184095402140263325332633233315310230223013301130173014300630003001247017371734166415941546147614681092
Percentage of AdditionalPaidInCapitalCommonStock100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets59.959.559.459.059.558.659.058.160.460.863.363.265.361.862.764.669.369.970.265.263.763.255.255.257.257.053.252.552.753.653.956.756.858.158.658.653.655.755.358.959.056.254.548.9

Retained Earnings Accumulated Deficit

us-gaap:RetainedEarningsAccumulatedDeficit

us-gaap:RetainedEarningsAccumulatedDeficit


Retained
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value-1457300000.0-1382500000.0-1332700000.0-1292400000.0-1207600000.0-1129100000.0-1144700000.0-1104400000.0-1059600000.0-1005000000.0-971070000.0-955310000.0-889520000.0-872280000.0-837640000.0-816360000.0-754660000.0-692510000.0-670140000.0-639700000.0-594120000.0-557430000.0-550500000.0-533710000.0-490370000.0-460750000.0-487990000.0-474660000.0-428680000.0-401980000.0-392340000.0-382230000.0-391470000.0-361580000.0-347520000.0-335670000.0-305050000.0-291960000.0-286560000.0-278320000.0-256310000.0-254790000.0-249380000.0-189160000.0
Percentage of RetainedEarningsAccumulatedDeficit100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets-19.3-18.4-17.7-17.0-16.1-14.8-15.1-14.4-14.4-13.7-13.8-13.6-12.9-12.4-12.1-12.2-12.1-11.6-11.4-10.2-9.4-8.8-9.1-8.9-8.4-7.9-8.4-8.2-7.5-7.2-7.0-7.2-7.4-7.0-6.8-8.0-9.4-9.4-9.5-10.3-9.8-9.7-9.3-8.5

Accumulated Other Comprehensive Income Loss Net Of Tax

us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax

us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax


Accumulated
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value-18908000.0-20259000.0-22777000.0-24614000.0-26465000.0-26747000.0-16946000.0-18929000.0-18784000.0-10191000.0-4397000.0-1975000.0-2056000.0-2236000.0-2701000.0-3195000.0-3428000.0-3583000.0-4067000.0-5992000.0-7263000.0-7240000.0-5830000.0-8207000.0-6891000.0-7838000.0-6072000.0-5114000.0-7290000.0-2428000.0-1435000.0-2210000.0-1047000.0-5848000.0-6661000.0-7551000.0-5165000.044000.0-3360000.0-4108000.0-4576000.0-4758000.0-5503000.0-4356000.0
Percentage of AccumulatedOtherComprehensiveIncomeLossNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets-0.3-0.3-0.3-0.3-0.4-0.4-0.2-0.2-0.3-0.1-0.1-0.0-0.0-0.0-0.0-0.0-0.1-0.1-0.1-0.1-0.1-0.1-0.1-0.1-0.1-0.1-0.1-0.1-0.1-0.0-0.0-0.0-0.0-0.1-0.1-0.2-0.20.0-0.1-0.2-0.2-0.2-0.2-0.2

us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax dei:LegalEntity

acc:AmericanCampusCommunitiesOperatingPartnershipLimitedPartnership


Accumulated
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-31
Value-22777000.0-24614000.0-26465000.0-26747000.0-16946000.0-18929000.0-18784000.0-10191000.0-4397000.0-1975000.0-2056000.0-2236000.0-2701000.0-3195000.0-3428000.0-3583000.0-4067000.0-5992000.0-7263000.0-7240000.0-5830000.0-8207000.0-6891000.0-7838000.0-6072000.0-5114000.0-7290000.0-2428000.0-1435000.0-2210000.0-1047000.0-5848000.0-6661000.0-7551000.0-5165000.044000.0-3360000.0
Percentage of AccumulatedOtherComprehensiveIncomeLossNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets-0.3-0.3-0.4-0.4-0.2-0.2-0.3-0.1-0.1-0.0-0.0-0.0-0.0-0.0-0.1-0.1-0.1-0.1-0.1-0.1-0.1-0.1-0.1-0.1-0.1-0.1-0.1-0.0-0.0-0.0-0.0-0.1-0.1-0.2-0.20.0-0.1
Percentage of Assets acc:AmericanCampusCommunitiesOperatingPartnershipLimitedPartnership-0.3-0.3-0.4-0.4-0.2-0.2-0.3-0.1-0.1-0.0-0.0-0.0-0.0-0.0-0.1-0.1-0.1-0.1-0.1-0.1-0.1-0.1-0.1-0.1-0.1-0.1-0.1-0.0-0.0-0.0-0.0-0.1-0.1-0.2-0.20.0-0.1

Minority Interest

us-gaap:MinorityInterest

us-gaap:MinorityInterest


Minority
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302018-12-312012-09-302011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value38414242384243506528283.643.6373.6673.9333.744
Percentage of MinorityInterest100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.50.60.60.60.50.60.60.70.90.71.00.10.10.10.10.2

Stock Issued During Period Value New Issues

us-gaap:StockIssuedDuringPeriodValueNewIssues

us-gaap:StockIssuedDuringPeriodValueNewIssues


Stock
Period End2021-06-302017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-31
Value370.01.056124621262-0.0677070.00.0-0.05821281530731-0.4357373497011
Percentage of StockIssuedDuringPeriodValueNewIssues100.00.0100.0100.0100.0100.0100.0100.0100.00.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:StockIssuedDuringPeriodValueNewIssues us-gaap:StatementEquityComponents

us-gaap:AdditionalPaidInCapital


Stock
Period End2021-06-302017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-31
Value370.01.055124621262-0.0677070.00.0-0.05821281530731-0.4357373487011
Percentage of StockIssuedDuringPeriodValueNewIssues100.00.099.9100.0100.0100.0100.0100.0100.00.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of Assets us-gaap:AdditionalPaidInCapital0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:CommonStock


Stock
Period End2021-06-302017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-31
Value0.0080.00.0010.0260.0130.0020.0130.00.1790.00.00.00.0490.0210.1260.1730.00.0180.0190.0130.0210.004
Percentage of StockIssuedDuringPeriodValueNewIssues0.00.00.10.00.00.00.0-0.00.00.00.0-0.00.00.00.00.0-0.00.00.00.00.00.0
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of Assets us-gaap:CommonStock0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value

us-gaap:AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue

us-gaap:AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue


Adjustments
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-31
Value6.4815.1483.5024.4393.9883.1053.7443.7652.2542.8753.6043.4432.4532.453.9354.2562.2232.2232.2192.6511.8251.7041.9152.0611.6511.651.6511.8641.6171.6141.6141.5781.3311.3251.3261.2971.0881.0881.0890.987
Percentage of AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue dei:LegalEntity

acc:AmericanCampusCommunitiesOperatingPartnershipLimitedPartnership


Adjustments
Period End2020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
Value3.5024.4393.9883.1053.7443.7652.2542.8753.6043.4432.4532.453.9354.2562.2232.2232.2192.6511.8251.7041.9152.0611.6511.651.6511.8641.6171.6141.6141.5781.3311.3251.3261.297
Percentage of AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of Assets acc:AmericanCampusCommunitiesOperatingPartnershipLimitedPartnership0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue dei:LegalEntity, us-gaap:PartnerTypeOfPartnersCapitalAccount

acc:AmericanCampusCommunitiesOperatingPartnershipLimitedPartnership, us-gaap:LimitedPartner


Adjustments
Period End2020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-31
Value3.5024.4393.9883.1053.7443.7652.2542.8753.6043.4432.4532.453.9354.2562.223
Percentage of AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of Assets acc:AmericanCampusCommunitiesOperatingPartnershipLimitedPartnership us-gaap:LimitedPartner0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue us-gaap:StatementEquityComponents

us-gaap:AdditionalPaidInCapital


Adjustments
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-31
Value6.4815.1483.5024.4393.9883.1053.7443.7652.2542.8753.6043.4432.4532.453.9354.2562.2232.2232.2192.6511.8251.7041.9152.0611.6511.651.6511.8641.6171.6141.6141.5781.3311.3251.3261.2971.0881.0881.0890.987
Percentage of AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of Assets us-gaap:AdditionalPaidInCapital0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Minority Interest Decrease From Distributions To Noncontrolling Interest Holders

us-gaap:MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders

us-gaap:MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders


Minority
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-31
Value1.1891.1380.0181.8162.5661.3483.0373.6611.0540.01510.0470.00.0560.1220.0340.010.1130.1530.10.0170.0720.1520.3940.0060.1070.1170.057-0.0720.0140.4390.4081.3430.3460.4880.4880.0070.0810.1370.11
Percentage of MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders dei:LegalEntity

acc:AmericanCampusCommunitiesOperatingPartnershipLimitedPartnership


Minority
Period End2020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
Value0.0181.8162.5661.3483.0373.6611.0540.01510.0470.00.0560.1220.0340.010.1130.1530.10.0170.0720.1520.3940.0060.1070.1170.057-0.0720.0140.4390.4081.3430.3460.4880.488
Percentage of MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders100.0100.0100.0100.0100.0100.0100.00.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of Assets acc:AmericanCampusCommunitiesOperatingPartnershipLimitedPartnership0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders dei:LegalEntity, us-gaap:RealEstateProperties, us-gaap:StatementEquityComponents

acc:AmericanCampusCommunitiesOperatingPartnershipLimitedPartnership, us-gaap:PartiallyOwnedProperties, us-gaap:NoncontrollingInterest


Minority
Period End2020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-31
Value0.0181.8162.5661.3483.0373.6611.0540.01510.0470.00.0560.1220.0340.010.1130.1530.10.0170.0720.1520.3940.0060.1070.1170.057-0.0720.0140.4390.408
Percentage of MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders100.0100.0100.0100.0100.0100.0100.00.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of Assets acc:AmericanCampusCommunitiesOperatingPartnershipLimitedPartnership us-gaap:PartiallyOwnedProperties us-gaap:NoncontrollingInterest0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders dei:LegalEntity, us-gaap:StatementEquityComponents

acc:AmericanCampusCommunitiesOperatingPartnershipLimitedPartnership, acc:TemporaryEquityRedeemableNoncontrollingInterests


Minority
Period End2020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-09-302012-06-302012-03-31
Value0.2350.2340.2340.2350.2880.3050.3030.3060.5310.37616600.4840.4640.4630.5290.5840.5650.6190.6230.6230.4640.4930.5050.5130.4870.4880.4530.4540.4280.3290.3290.349
Percentage of MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders1305.612.99.117.49.58.328.70.00.4800.00.0107269.6396.71364.74630.0468.1381.7565.03641.2865.3409.9117.88216.7472.0438.5854.4-677.83235.7103.4104.995.167.471.5
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of Assets acc:AmericanCampusCommunitiesOperatingPartnershipLimitedPartnership acc:TemporaryEquityRedeemableNoncontrollingInterests0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders us-gaap:RealEstateProperties, us-gaap:StatementEquityComponents

us-gaap:PartiallyOwnedProperties, us-gaap:NoncontrollingInterest


Minority
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-31
Value1.1891.1380.0181.8162.5661.3483.0373.6611.0540.01510.0470.00.0560.1220.0340.010.1130.1530.10.0170.0720.1520.3940.0060.1070.1170.057-0.0720.0140.4390.408
Percentage of MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of Assets us-gaap:PartiallyOwnedProperties us-gaap:NoncontrollingInterest0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders us-gaap:StatementEquityComponents

acc:TemporaryEquityRedeemableNoncontrollingInterests


Minority
Period End2021-06-302021-03-312020-06-302020-03-312011-12-312011-09-30
Value0.2340.2340.2340.2340.3490.352
Percentage of MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders19.720.612.99.14985.7434.6
Percentage of Assets0.00.00.00.00.00.0
Percentage of Assets acc:TemporaryEquityRedeemableNoncontrollingInterests0.00.00.00.00.00.0

Net Cash Provided By Used In Operating Activities

us-gaap:NetCashProvidedByUsedInOperatingActivities

us-gaap:NetCashProvidedByUsedInOperatingActivities


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value51491061015290961256780109976110874116616665918764844853745887526169734557665431493742272437342025
Percentage of NetCashProvidedByUsedInOperatingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues24.721.445.849.928.236.437.855.031.233.344.645.730.549.132.959.134.434.732.046.646.932.042.027.029.838.629.948.230.433.338.246.529.634.542.946.229.744.335.143.430.424.140.040.228.031.6

us-gaap:NetCashProvidedByUsedInOperatingActivities dei:LegalEntity

acc:AmericanCampusCommunitiesOperatingPartnershipLimitedPartnership


Net
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-31
Value10610152909612567801099761108741166166659187648448537458875261697345576654314932452527
Percentage of NetCashProvidedByUsedInOperatingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.088.5107.492.8112.6
Percentage of Revenues45.849.928.236.437.855.031.233.344.645.730.549.132.959.134.434.732.046.646.932.042.027.029.838.629.948.230.433.338.246.529.634.542.946.229.744.331.146.728.227.1
Percentage of Revenues acc:AmericanCampusCommunitiesOperatingPartnershipLimitedPartnership45.849.928.236.437.855.031.233.344.645.730.549.132.959.134.434.732.046.646.932.042.027.029.838.629.948.230.433.338.246.529.634.542.946.229.744.331.347.728.227.8

Net Cash Provided By Used In Investing Activities

us-gaap:NetCashProvidedByUsedInInvestingActivities

us-gaap:NetCashProvidedByUsedInInvestingActivities


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value-76.294-66.575-37.693-118.25-99.5148-9.015-167.518-122.735-116.872-119.701-171.70992-136.71-207.449-338.996-287.958-143.396334-170.128-177.918-17.692-108.811-91.737-27.578-11.329-143.764-110.458-85.024-89.989-217.009-37.805-153.646-101.539-512.467-704.439-139.76-123.149-311.097-118.78627-37.56-100.092-112.96-19.756-13.355
Percentage of NetCashProvidedByUsedInInvestingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues-36.6-28.6-16.2-58.3-53.619.3-3.5-73.6-56.5-48.3-48.7-80.445.9-62.0-91.2-172.1-160.9-74.3163.8-86.6-95.7-8.8-53.8-50.7-15.5-5.9-73.0-60.7-49.4-49.1-118.8-23.8-99.5-61.3-329.2-592.9-130.7-110.2-293.9-122.130.5-37.0-106.3-131.8-26.7-16.7

us-gaap:NetCashProvidedByUsedInInvestingActivities dei:LegalEntity

acc:AmericanCampusCommunitiesOperatingPartnershipLimitedPartnership


Net
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-31
Value-37.693-118.25-99.5148-9.015-167.518-122.735-116.872-119.701-171.70992-136.71-207.449-338.996-287.958-143.396334-170.128-177.918-17.692-108.811-91.737-27.578-11.329-143.764-110.458-85.024-89.989-217.009-37.805-153.646-101.539-512.467-704.439-139.76-123.149-306.811-121.92429-40.652
Percentage of NetCashProvidedByUsedInInvestingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.098.6102.6107.2108.2
Percentage of Revenues-16.2-58.3-53.619.3-3.5-73.6-56.5-48.3-48.7-80.445.9-62.0-91.2-172.1-160.9-74.3163.8-86.6-95.7-8.8-53.8-50.7-15.5-5.9-73.0-60.7-49.4-49.1-118.8-23.8-99.5-61.3-329.2-592.9-130.7-110.2-289.9-125.332.7-40.0
Percentage of Revenues acc:AmericanCampusCommunitiesOperatingPartnershipLimitedPartnership-16.2-58.3-53.619.3-3.5-73.6-56.5-48.3-48.7-80.445.9-62.0-91.2-172.1-160.9-74.3163.8-86.6-95.7-8.8-53.8-50.7-15.5-5.9-73.0-60.7-49.4-49.1-118.8-23.8-99.5-61.3-329.2-592.9-130.7-110.2-292.4-128.132.7-41.0

Net Cash Provided By Used In Financing Activities

us-gaap:NetCashProvidedByUsedInFinancingActivities

us-gaap:NetCashProvidedByUsedInFinancingActivities


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value178.018-63.11424-100.759-11.265-92.07739639.5982577-150.4094715721321788-409.687-95.759-89.845324-4.68779-34.487-70.15590-22.2256521160-36.38211837449649928326756-37.915-68.519-27.73261-1.523-56.44
Percentage of NetCashProvidedByUsedInFinancingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues8.33.4-27.111.9-54.3-4.5-36.017.229.44.010.636.3-74.821.769.2108.3121.645.8-200.9-48.8-48.3162.1-2.343.9-19.4-36.446.0-12.238.311.787.9-22.976.722.9288.5547.186.975.0253.058.3-42.6-67.4-29.5304.6-2.1-70.6

us-gaap:NetCashProvidedByUsedInFinancingActivities dei:LegalEntity

acc:AmericanCampusCommunitiesOperatingPartnershipLimitedPartnership


Net
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-31
Value-63.11424-100.759-11.265-92.07739639.5982577-150.4094715721321788-409.687-95.759-89.845324-4.68779-34.487-70.15590-22.2256521160-36.38211837449649928326756-37.915-68.519
Percentage of NetCashProvidedByUsedInFinancingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues-27.111.9-54.3-4.5-36.017.229.44.010.636.3-74.821.769.2108.3121.645.8-200.9-48.8-48.3162.1-2.343.9-19.4-36.446.0-12.238.311.787.9-22.976.722.9288.5547.186.975.0253.058.3-42.6-67.4
Percentage of Revenues acc:AmericanCampusCommunitiesOperatingPartnershipLimitedPartnership-27.111.9-54.3-4.5-36.017.229.44.010.636.3-74.821.769.2108.3121.645.8-200.9-48.8-48.3162.1-2.343.9-19.4-36.446.0-12.238.311.787.9-22.976.722.9288.5547.186.975.0255.259.6-42.6-69.0

Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect


Cash
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-31
Value-7.47-8.7437.007-147.918127-2.9398.871-26.6623.3373.21719-11.63-4.72111
Percentage of CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues-3.6-3.83.5-79.751.1-1.34.1-11.01.61.68.7-5.9-2.66.0

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect dei:LegalEntity

acc:AmericanCampusCommunitiesOperatingPartnershipLimitedPartnership


Cash
Period End2020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-30
Value7.007-147.918127-2.9398.871-26.6623.3373.21719-11.63
Percentage of CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues3.5-79.751.1-1.34.1-11.01.61.68.7-5.9
Percentage of Revenues acc:AmericanCampusCommunitiesOperatingPartnershipLimitedPartnership3.5-79.751.1-1.34.1-11.01.61.68.7-5.9

Amortization Of Financing Costs

us-gaap:AmortizationOfFinancingCosts

us-gaap:AmortizationOfFinancingCosts


Amortization
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value1418000.01319000.01349000.01255000.01287000.01347000.01315000.01218000.01132000.01072000.01116000.02214000.01414000.01422000.01146000.01023000.01028000.01282000.01344000.01352000.02542000.01518000.01315000.01338000.01379000.01415000.01543000.01461000.01499000.01465000.01413000.01416000.01314000.01435000.01072000.0981000.01001000.01335000.01226000.01329000.01230000.01239000.01238000.0997000.01028000.0
Percentage of AmortizationOfFinancingCosts100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AmortizationOfFinancingCosts dei:LegalEntity

acc:AmericanCampusCommunitiesOperatingPartnershipLimitedPartnership


Amortization
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-31
Value1349000.01255000.01287000.01347000.01315000.01218000.01132000.01072000.01116000.02214000.01414000.01422000.01146000.01023000.01028000.01282000.01344000.01352000.02542000.01518000.01315000.01338000.01379000.01415000.01543000.01461000.01499000.01465000.01413000.01416000.01314000.01435000.01072000.0981000.01001000.01331000.01223000.01329000.01230000.0
Percentage of AmortizationOfFinancingCosts100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.099.799.8100.0100.0

Deferred Income Tax Expense Benefit

us-gaap:DeferredIncomeTaxExpenseBenefit

us-gaap:DeferredIncomeTaxExpenseBenefit


Deferred
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value341000.0340000.0216000.0373000.0381000.0379000.0524000.0305000.0314000.0364000.0282000.0-219000.02085000.0281000.0198000.0267000.0267000.0257000.0115000.0345000.0345000.0345000.0310000.0311000.0310000.0311000.0439000.0290000.0289000.0290000.0255000.0255000.0255000.0181000.0156000.0156000.060000.088000.0142000.0143000.0142000.0143000.0142000.0143000.0
Percentage of DeferredIncomeTaxExpenseBenefit100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DeferredIncomeTaxExpenseBenefit dei:LegalEntity

acc:AmericanCampusCommunitiesOperatingPartnershipLimitedPartnership


Deferred
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-09-302012-06-302012-03-312011-09-302011-06-302011-03-31
Value216000.0373000.0381000.0379000.0524000.0305000.0314000.0364000.0282000.0-219000.02085000.0281000.0198000.0267000.0267000.0257000.0115000.0345000.0345000.0345000.0310000.0311000.0310000.0311000.0439000.0290000.0289000.0290000.0255000.0255000.0255000.0181000.0156000.0156000.088000.0142000.0143000.0
Percentage of DeferredIncomeTaxExpenseBenefit100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Depreciation Depletion And Amortization

us-gaap:DepreciationDepletionAndAmortization

us-gaap:DepreciationDepletionAndAmortization


Depreciation
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value68686767666668686868686663646561555251525353545251505149484847454746392824242222222221191717
Percentage of DepreciationDepletionAndAmortization100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DepreciationDepletionAndAmortization dei:LegalEntity

acc:AmericanCampusCommunitiesOperatingPartnershipLimitedPartnership


Depreciation
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-31
Value67676666686868686866636465615552515253535452515051494848474547463928242422222222
Percentage of DepreciationDepletionAndAmortization100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Increase Decrease In Accounts Receivable

us-gaap:IncreaseDecreaseInAccountsReceivable

us-gaap:IncreaseDecreaseInAccountsReceivable


Increase
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value-3.8672.552-10.91812-3.093-1.143-13.80518-4.5215.491-36.73237-1.4420.556-6.3618.014-0.592-0.647-6.9599.5330.093-11.376-5.654160.372-1.585-4.5155.7420.943-1.211-7.9549.1321.848-7.6474.6625.5750.763-2.25-1.9513.677-0.523-1.597-3.8734.901-0.271-0.991
Percentage of IncreaseDecreaseInAccountsReceivable100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncreaseDecreaseInAccountsReceivable dei:LegalEntity

acc:AmericanCampusCommunitiesOperatingPartnershipLimitedPartnership


Increase
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-31
Value-10.91812-3.093-1.143-13.80518-4.5215.491-36.73237-1.4420.556-6.3618.014-0.592-0.647-6.9599.5330.093-11.376-5.654160.372-1.585-4.5155.7420.943-1.211-7.9549.1321.848-7.6474.6625.5750.763-2.25-1.9513.677-0.523-1.597
Percentage of IncreaseDecreaseInAccountsReceivable100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Net Cash Provided By Used In Operating Activities

us-gaap:NetCashProvidedByUsedInOperatingActivities

us-gaap:NetCashProvidedByUsedInOperatingActivities


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value51491061015290961256780109976110874116616665918764844853745887526169734557665431493742272437342025
Percentage of NetCashProvidedByUsedInOperatingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues24.721.445.849.928.236.437.855.031.233.344.645.730.549.132.959.134.434.732.046.646.932.042.027.029.838.629.948.230.433.338.246.529.634.542.946.229.744.335.143.430.424.140.040.228.031.6

us-gaap:NetCashProvidedByUsedInOperatingActivities dei:LegalEntity

acc:AmericanCampusCommunitiesOperatingPartnershipLimitedPartnership


Net
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-31
Value10610152909612567801099761108741166166659187648448537458875261697345576654314932452527
Percentage of NetCashProvidedByUsedInOperatingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.088.5107.492.8112.6
Percentage of Revenues45.849.928.236.437.855.031.233.344.645.730.549.132.959.134.434.732.046.646.932.042.027.029.838.629.948.230.433.338.246.529.634.542.946.229.744.331.146.728.227.1
Percentage of Revenues acc:AmericanCampusCommunitiesOperatingPartnershipLimitedPartnership45.849.928.236.437.855.031.233.344.645.730.549.132.959.134.434.732.046.646.932.042.027.029.838.629.948.230.433.338.246.529.634.542.946.229.744.331.347.728.227.8

Net Income Loss

us-gaap:NetIncomeLoss

us-gaap:NetIncomeLoss


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value-9.4021524-19.515-13.344802420102947-2.345462539-1.312-2.76234259.6441845281.855157026-5.847132827478.0492123-0.3951220151.6412117133.9050.768-2.189
Percentage of NetIncomeLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues-4.56.710.6-9.6-7.232.49.78.94.812.219.3-1.122.911.817.2-0.7-1.517.612.44.99.922.814.01.08.836.513.6-3.27.815.515.229.75.213.015.2-0.311.517.915.01.724.417.114.64.61.0-2.7

us-gaap:NetIncomeLoss dei:LegalEntity

acc:AmericanCampusCommunitiesOperatingPartnershipLimitedPartnership


Net
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-31
Value24-19.567-13.376812420102947-2.324462639-1.29-2.7534259.7681846281.924157027-5.866132828478.18321230.6931220161.7082217
Percentage of NetIncomeLoss100.4100.3100.2100.4100.4100.4100.5100.5100.599.1100.8100.8100.898.399.6100.9100.9101.3101.2101.1101.4103.7101.6101.1101.3100.3101.5101.3101.3101.2101.7101.3101.3-175.4101.5101.4101.5104.1101.5101.6
Percentage of Revenues10.7-9.7-7.232.59.78.94.812.319.4-1.123.111.917.3-0.7-1.517.812.65.010.023.114.21.18.936.913.8-3.27.915.715.430.05.313.215.40.611.718.215.21.824.817.4
Percentage of Revenues acc:AmericanCampusCommunitiesOperatingPartnershipLimitedPartnership10.7-9.7-7.232.59.78.94.812.319.4-1.123.111.917.3-0.7-1.517.812.65.010.023.114.21.18.936.913.8-3.27.915.715.430.05.313.215.40.611.718.215.31.824.817.8

Profit Loss

us-gaap:ProfitLoss

us-gaap:ProfitLoss


Profit
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value-11.0531524-21.424-15.422822519103149-2.737452639-1.233-2.65334259.8451846282.016157127-5.785132828478.66622251.0221320161.7922217144.0860.937-2.055
Percentage of ProfitLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues-5.36.910.6-10.6-8.332.910.18.54.713.020.2-1.322.911.917.4-0.6-1.517.912.75.010.123.114.31.18.937.013.9-3.28.015.815.530.15.613.516.30.912.218.615.21.824.917.615.04.81.3-2.6

us-gaap:ProfitLoss dei:LegalEntity

acc:AmericanCampusCommunitiesOperatingPartnershipLimitedPartnership


Profit
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-31
Value24-21.424-15.422822519103149-2.737452639-1.233-2.65334259.8451846282.016157127-5.785132828478.66622251.0221320161.7922217
Percentage of ProfitLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues10.6-10.6-8.332.910.18.54.713.020.2-1.322.911.917.4-0.6-1.517.912.75.010.123.114.31.18.937.013.9-3.28.015.815.530.15.613.516.30.912.218.615.21.824.917.6
Percentage of Revenues acc:AmericanCampusCommunitiesOperatingPartnershipLimitedPartnership10.6-10.6-8.332.910.18.54.713.020.2-1.322.911.917.4-0.6-1.517.912.75.010.123.114.31.18.937.013.9-3.28.015.815.530.15.613.516.30.912.218.615.41.924.918.0

Share Based Compensation

us-gaap:ShareBasedCompensation

us-gaap:ShareBasedCompensation


Share
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value6.4815.1483.4953.5024.4393.9883.0033.1053.7443.7652.2542.8753.6043.4432.4532.4994.6464.2562.2232.3282.8412.6511.8261.8712.4032.0611.6511.651.9991.8641.6171.6141.8161.5781.4021.3251.3261.2971.0881.0881.2040.9870.9110.8861.0190.929
Percentage of ShareBasedCompensation100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ShareBasedCompensation dei:LegalEntity

acc:AmericanCampusCommunitiesOperatingPartnershipLimitedPartnership


Share
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-31
Value3.4953.5024.4393.9883.0033.1053.7443.7652.2542.8753.6043.4432.4532.4994.6464.2562.2232.3282.8412.6511.8261.8712.4032.0611.6511.651.9991.8641.6171.6141.8161.5781.4021.3251.3261.2971.0881.0881.2040.987
Percentage of ShareBasedCompensation100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Net Cash Provided By Used In Investing Activities

us-gaap:NetCashProvidedByUsedInInvestingActivities

us-gaap:NetCashProvidedByUsedInInvestingActivities


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value-76.294-66.575-37.693-118.25-99.5148-9.015-167.518-122.735-116.872-119.701-171.70992-136.71-207.449-338.996-287.958-143.396334-170.128-177.918-17.692-108.811-91.737-27.578-11.329-143.764-110.458-85.024-89.989-217.009-37.805-153.646-101.539-512.467-704.439-139.76-123.149-311.097-118.78627-37.56-100.092-112.96-19.756-13.355
Percentage of NetCashProvidedByUsedInInvestingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues-36.6-28.6-16.2-58.3-53.619.3-3.5-73.6-56.5-48.3-48.7-80.445.9-62.0-91.2-172.1-160.9-74.3163.8-86.6-95.7-8.8-53.8-50.7-15.5-5.9-73.0-60.7-49.4-49.1-118.8-23.8-99.5-61.3-329.2-592.9-130.7-110.2-293.9-122.130.5-37.0-106.3-131.8-26.7-16.7

us-gaap:NetCashProvidedByUsedInInvestingActivities dei:LegalEntity

acc:AmericanCampusCommunitiesOperatingPartnershipLimitedPartnership


Net
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-31
Value-37.693-118.25-99.5148-9.015-167.518-122.735-116.872-119.701-171.70992-136.71-207.449-338.996-287.958-143.396334-170.128-177.918-17.692-108.811-91.737-27.578-11.329-143.764-110.458-85.024-89.989-217.009-37.805-153.646-101.539-512.467-704.439-139.76-123.149-306.811-121.92429-40.652
Percentage of NetCashProvidedByUsedInInvestingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.098.6102.6107.2108.2
Percentage of Revenues-16.2-58.3-53.619.3-3.5-73.6-56.5-48.3-48.7-80.445.9-62.0-91.2-172.1-160.9-74.3163.8-86.6-95.7-8.8-53.8-50.7-15.5-5.9-73.0-60.7-49.4-49.1-118.8-23.8-99.5-61.3-329.2-592.9-130.7-110.2-289.9-125.332.7-40.0
Percentage of Revenues acc:AmericanCampusCommunitiesOperatingPartnershipLimitedPartnership-16.2-58.3-53.619.3-3.5-73.6-56.5-48.3-48.7-80.445.9-62.0-91.2-172.1-160.9-74.3163.8-86.6-95.7-8.8-53.8-50.7-15.5-5.9-73.0-60.7-49.4-49.1-118.8-23.8-99.5-61.3-329.2-592.9-130.7-110.2-292.4-128.132.7-41.0

Payments To Acquire Productive Assets

us-gaap:PaymentsToAcquireProductiveAssets us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments

us-gaap:PaymentsToAcquireProductiveAssets

us-gaap:OperatingSegments, acc:OnCampusParticipatingProperties


Payments
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-09-302012-06-30
Value0.5790.2060.1670.7650.6010.5650.3811.750.5370.230.7361.3940.3781.1460.6242.0390.6610.2090.4341.4460.4090.6550.5541.530.0780.7812.8875.5648.878128.7267.660.3730.3350.9480.617
Percentage of PaymentsToAcquireProductiveAssets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OperatingSegments, acc:OwnedProperties


Payments
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value6366731188596111156129115118144
Percentage of PaymentsToAcquireProductiveAssets10900.532472.844189.215460.114246.417028.529357.28962.324177.550225.716043.810395.3

Net Cash Provided By Used In Financing Activities

us-gaap:NetCashProvidedByUsedInFinancingActivities

us-gaap:NetCashProvidedByUsedInFinancingActivities


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value178.018-63.11424-100.759-11.265-92.07739639.5982577-150.4094715721321788-409.687-95.759-89.845324-4.68779-34.487-70.15590-22.2256521160-36.38211837449649928326756-37.915-68.519-27.73261-1.523-56.44
Percentage of NetCashProvidedByUsedInFinancingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues8.33.4-27.111.9-54.3-4.5-36.017.229.44.010.636.3-74.821.769.2108.3121.645.8-200.9-48.8-48.3162.1-2.343.9-19.4-36.446.0-12.238.311.787.9-22.976.722.9288.5547.186.975.0253.058.3-42.6-67.4-29.5304.6-2.1-70.6

us-gaap:NetCashProvidedByUsedInFinancingActivities dei:LegalEntity

acc:AmericanCampusCommunitiesOperatingPartnershipLimitedPartnership


Net
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-31
Value-63.11424-100.759-11.265-92.07739639.5982577-150.4094715721321788-409.687-95.759-89.845324-4.68779-34.487-70.15590-22.2256521160-36.38211837449649928326756-37.915-68.519
Percentage of NetCashProvidedByUsedInFinancingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues-27.111.9-54.3-4.5-36.017.229.44.010.636.3-74.821.769.2108.3121.645.8-200.9-48.8-48.3162.1-2.343.9-19.4-36.446.0-12.238.311.787.9-22.976.722.9288.5547.186.975.0253.058.3-42.6-67.4
Percentage of Revenues acc:AmericanCampusCommunitiesOperatingPartnershipLimitedPartnership-27.111.9-54.3-4.5-36.017.229.44.010.636.3-74.821.769.2108.3121.645.8-200.9-48.8-48.3162.1-2.343.9-19.4-36.446.0-12.238.311.787.9-22.976.722.9288.5547.186.975.0255.259.6-42.6-69.0

Dividends

us-gaap:Dividends

us-gaap:Dividends


Dividends
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-31
Value65656565656564636363636060605956555555524545454240404038373737353531252524232322
Percentage of Dividends100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:Dividends us-gaap:StatementEquityComponents

us-gaap:RetainedEarnings


Dividendsus-gaap:
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-31
Value65656565656564636363636060605956555555524545454240404038373737353531252524232322
Percentage of Dividends100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Deferred Tax Assets Net

us-gaap:DeferredTaxAssetsNet us-gaap:ConsolidatedEntities

us-gaap:DeferredTaxAssetsNet

srt:Subsidiaries


Deferred
Period End2020-12-312019-12-312018-12-312017-12-31
Value3226000.03465000.065000.084000.0
Percentage of DeferredTaxAssetsNet100.0100.0100.0100.0

Deferred Tax Assets Valuation Allowance

us-gaap:DeferredTaxAssetsValuationAllowance us-gaap:ConsolidatedEntities

us-gaap:DeferredTaxAssetsValuationAllowance

srt:Subsidiaries


Deferred
Period End2020-12-312019-12-312018-12-312017-12-31
Value18171616
Percentage of DeferredTaxAssetsValuationAllowance100.0100.0100.0100.0

acc:AmortizationofInterestRateSwapTerminationsandOther

acc:AmortizationofInterestRateSwapTerminationsandOther


Amortizationof
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-31
Value430000.0426000.0418000.0432000.0427000.0428000.0432000.0433000.0166000.0102000.0104000.0104000.0102000.0102000.0104000.0104000.0102000.0102000.0304000.0104000.0102000.0103000.0
Percentage of AmortizationofInterestRateSwapTerminationsandOther100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

acc:AmortizationofInterestRateSwapTerminationsandOther dei:LegalEntity

acc:AmericanCampusCommunitiesOperatingPartnershipLimitedPartnership


Amortizationof
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-31
Value418000.0432000.0427000.0428000.0432000.0433000.0166000.0102000.0104000.0104000.0102000.0102000.0104000.0104000.0102000.0102000.0304000.0104000.0102000.0103000.0
Percentage of AmortizationofInterestRateSwapTerminationsandOther100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

acc:AssetAcquisitionsConsiderationTransferred acc:RealEstateAssetAcquisitions, us-gaap:SubsequentEventType

acc:AssetAcquisitionsConsiderationTransferred

acc:InProcessDevelopmentProperties, us-gaap:SubsequentEvent


Asset
Period End2020-10-31
Value11
Percentage of AssetAcquisitionsConsiderationTransferred100.0

acc:AssetAcquisitionsConsiderationTransferred us-gaap:ConsolidatedEntities, us-gaap:EquityMethodInvestmentNonconsolidatedInvestee

us-gaap:VariableInterestEntityPrimaryBeneficiary, acc:NashvilleJointVenture


Asset
Period End2020-08-31
Value5.6
Percentage of AssetAcquisitionsConsiderationTransferred0.0

acc:AssetAcquisitionsConsiderationTransferred us-gaap:ConsolidatedEntities, us-gaap:EquityMethodInvestmentNonconsolidatedInvestee, us-gaap:PropertyPlantAndEquipmentByType

us-gaap:VariableInterestEntityPrimaryBeneficiary, acc:NashvilleJointVenture, us-gaap:Land


Asset
Period End2020-09-30
Value11
Percentage of AssetAcquisitionsConsiderationTransferred0.0

acc:AssetAcquisitionsConsiderationTransferred us-gaap:PropertyPlantAndEquipmentByType

us-gaap:Land


Asset
Period End2020-10-312018-08-312017-12-312017-09-302017-06-302017-03-31
Value11160.00.95.85.3
Percentage of AssetAcquisitionsConsiderationTransferred100.00.00.00.00.00.0

acc:AssetAcquisitionsConsiderationTransferred us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName, us-gaap:InvestmentsByConsolidatedAndNonconsolidatedEntities

acc:NashvilleJointVenture, us-gaap:VariableInterestEntityPrimaryBeneficiary


Asset
Period End2020-08-31
Value5.6
Percentage of AssetAcquisitionsConsiderationTransferred0.0

acc:AssetAcquisitionsConsiderationTransferred us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName, us-gaap:InvestmentsByConsolidatedAndNonconsolidatedEntities, us-gaap:PropertyPlantAndEquipmentByType

acc:NashvilleJointVenture, us-gaap:VariableInterestEntityPrimaryBeneficiary, us-gaap:Land


Asset
Period End2020-09-30
Value11
Percentage of AssetAcquisitionsConsiderationTransferred0.0

acc:AssetAcquisitionsConsiderationTransferredNoncash us-gaap:ConsolidatedEntities, us-gaap:EquityMethodInvestmentNonconsolidatedInvestee

acc:AssetAcquisitionsConsiderationTransferredNoncash

us-gaap:VariableInterestEntityNotPrimaryBeneficiary, acc:NashvilleJointVenture


Asset
Period End2020-08-31
Value700000.0
Percentage of AssetAcquisitionsConsiderationTransferredNoncash100.0

acc:AssetAcquisitionsConsiderationTransferredNoncash us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName, us-gaap:InvestmentsByConsolidatedAndNonconsolidatedEntities

acc:NashvilleJointVenture, us-gaap:VariableInterestEntityNotPrimaryBeneficiary


Asset
Period End2020-08-31
Value700000.0
Percentage of AssetAcquisitionsConsiderationTransferredNoncash100.0

acc:Changeinfairvalueofredeemablenoncontrollinginterest

acc:Changeinfairvalueofredeemablenoncontrollinginterest


Changeinfairvalueofredeemablenoncontrollinginterest
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value-2031000.0-354000.0-3814000.0-264000.0-3410000.09490000.0500000.0-12963000.0660000.0-2547000.0-222000.0
Percentage of Changeinfairvalueofredeemablenoncontrollinginterest100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

acc:Changeinfairvalueofredeemablenoncontrollinginterest dei:LegalEntity

acc:AmericanCampusCommunitiesOperatingPartnershipLimitedPartnership


Changeinfairvalueofredeemablenoncontrollinginterestdei:
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value-3814000.0-264000.0-3410000.09490000.0500000.0-12963000.0660000.0-2547000.0-222000.0
Percentage of Changeinfairvalueofredeemablenoncontrollinginterest100.0100.0100.0100.0100.0100.0100.0100.0100.0

acc:ConstructionAndDevelopmentCostsAndServiceManagementCosts

acc:ConstructionAndDevelopmentCostsAndServiceManagementCosts


Construction
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value5.05.3875.4555.0614.9776.2075.7865.434.5134.1863.8863.8313.5444.1983.4363.8793.8274.0833.8953.343.563.7383.7923.5553.9523.0473.3672.8812.722.7863.0243.0582.4222.3062.8852.6022.6262.7853.5672.4882.6312.6824.1322.7542.7963.099
Percentage of ConstructionAndDevelopmentCostsAndServiceManagementCosts100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

acc:ConstructionAndDevelopmentCostsAndServiceManagementCosts dei:LegalEntity

acc:AmericanCampusCommunitiesOperatingPartnershipLimitedPartnership


Construction
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-31
Value5.4555.0614.9776.2075.7865.434.5134.1863.8863.8313.5444.1983.4363.8793.8274.0833.8953.343.563.7383.7923.5553.9523.0473.3672.8812.722.7863.0243.0582.4222.3062.8852.6022.6262.7853.5672.4882.6312.682
Percentage of ConstructionAndDevelopmentCostsAndServiceManagementCosts100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

acc:DebtInstrumentOriginalIssueDiscount dei:LegalEntity, us-gaap:LongtermDebtType

acc:DebtInstrumentOriginalIssueDiscount

acc:AmericanCampusCommunitiesOperatingPartnershipLimitedPartnership, acc:SeniorNotesApril2013


Debt
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-31
Value001364000.00001364000.00001364000.00001364000.00001364000.00
Percentage of DebtInstrumentOriginalIssueDiscount0.00.0100.00.00.00.0100.00.00.00.0100.00.00.00.0100.00.00.00.0100.00.0

acc:AmericanCampusCommunitiesOperatingPartnershipLimitedPartnership, acc:SeniorNotesJanuary2020


Debt
Period End2020-09-302020-06-302020-03-31
Value00760000.0
Percentage of DebtInstrumentOriginalIssueDiscount0.00.055.7

acc:AmericanCampusCommunitiesOperatingPartnershipLimitedPartnership, acc:SeniorNotesJune2014


Debt
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-31
Value00556000.0000556000.0000556000.0000556000.0000556000.00
Percentage of DebtInstrumentOriginalIssueDiscount0.00.040.80.00.00.040.80.00.00.040.80.00.00.040.80.00.00.040.80.0

acc:AmericanCampusCommunitiesOperatingPartnershipLimitedPartnership, acc:SeniorNotesJune2019


Debt
Period End2020-09-302020-06-302020-03-312019-12-312019-09-30
Value001184000.000
Percentage of DebtInstrumentOriginalIssueDiscount0.00.086.80.00.0

acc:AmericanCampusCommunitiesOperatingPartnershipLimitedPartnership, acc:SeniorNotesJune2020


Debt
Period End2020-09-30
Value0
Percentage of DebtInstrumentOriginalIssueDiscount0.0

acc:AmericanCampusCommunitiesOperatingPartnershipLimitedPartnership, acc:SeniorNotesOctober2017


Debt
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value00352000.0000352000.0000352000.0
Percentage of DebtInstrumentOriginalIssueDiscount0.00.025.80.00.00.025.80.00.00.025.8

acc:AmericanCampusCommunitiesOperatingPartnershipLimitedPartnership, us-gaap:SeniorNotes


Debt
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-31
Value003432000.04216000.0001184000.03028000.00003028000.0352000.0002676000.00002676000.00
Percentage of DebtInstrumentOriginalIssueDiscount0.00.00.0309.10.00.00.0222.00.00.00.0222.00.00.00.0196.20.00.00.0196.20.0

acc:DebtInstrumentOriginalIssueDiscount us-gaap:LongtermDebtType

acc:SeniorNotesApril2013


Debt
Period End2021-06-302021-03-312013-04-30
Value01364000.01400000.0
Percentage of DebtInstrumentOriginalIssueDiscount0.00.00.0

acc:SeniorNotesJanuary2020


Debt
Period End2021-06-302021-03-31
Value0760000.0
Percentage of DebtInstrumentOriginalIssueDiscount0.00.0

acc:SeniorNotesJune2014


Debt
Period End2021-06-302021-03-312014-06-30
Value0556000.0600000.0
Percentage of DebtInstrumentOriginalIssueDiscount0.00.00.0

acc:SeniorNotesJune2019


Debt
Period End2021-06-302021-03-31
Value01184000.0
Percentage of DebtInstrumentOriginalIssueDiscount0.00.0

acc:SeniorNotesJune2020


Debt
Period End2021-06-302021-03-31
Value03432000.0
Percentage of DebtInstrumentOriginalIssueDiscount0.00.0

acc:SeniorNotesOctober2017


Debt
Period End2021-06-302021-03-31
Value0352000.0
Percentage of DebtInstrumentOriginalIssueDiscount0.00.0

us-gaap:SeniorNotes


Debt
Period End2021-06-302021-03-312014-06-302013-04-30
Value07648000.0600000.01400000.0
Percentage of DebtInstrumentOriginalIssueDiscount0.00.00.00.0

acc:DebtInstrumentProceedsAsPercentageOfParValue dei:LegalEntity, us-gaap:LongtermDebtType

acc:DebtInstrumentProceedsAsPercentageOfParValue

acc:AmericanCampusCommunitiesOperatingPartnershipLimitedPartnership, acc:SeniorNotesApril2013


Debt
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-31
Value98.66200.996590000.996590000.996590000.996590000.996590
Percentage of DebtInstrumentProceedsAsPercentageOfParValue100.00.0100.00.00.00.0100.00.00.00.0100.00.00.00.0100.00.00.00.0100.00.0

acc:AmericanCampusCommunitiesOperatingPartnershipLimitedPartnership, acc:SeniorNotesJanuary2020


Debt
Period End2020-09-302020-06-302020-03-312020-01-31
Value98.81200.99810.9981
Percentage of DebtInstrumentProceedsAsPercentageOfParValue100.20.0100.20.0

acc:AmericanCampusCommunitiesOperatingPartnershipLimitedPartnership, acc:SeniorNotesJune2014


Debt
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312014-06-30
Value98.86200.998610000.998610000.998610000.998610000.9986100.99861
Percentage of DebtInstrumentProceedsAsPercentageOfParValue100.20.0100.20.00.00.0100.20.00.00.0100.20.00.00.0100.20.00.00.0100.20.00.0

acc:AmericanCampusCommunitiesOperatingPartnershipLimitedPartnership, acc:SeniorNotesJune2019


Debt
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-30
Value98.70700.99704000.99704
Percentage of DebtInstrumentProceedsAsPercentageOfParValue100.00.0100.00.00.00.0

acc:AmericanCampusCommunitiesOperatingPartnershipLimitedPartnership, acc:SeniorNotesJune2020


Debt
Period End2020-09-302020-06-30
Value98.1510.99142
Percentage of DebtInstrumentProceedsAsPercentageOfParValue99.50.0

acc:AmericanCampusCommunitiesOperatingPartnershipLimitedPartnership, acc:SeniorNotesOctober2017


Debt
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value98.91300.999120000.999120000.99912
Percentage of DebtInstrumentProceedsAsPercentageOfParValue100.30.0100.30.00.00.0100.30.00.00.0100.3

acc:DebtInstrumentProceedsAsPercentageOfParValue us-gaap:LongtermDebtType

acc:SeniorNotesApril2013


Debt
Period End2021-06-302021-03-312013-04-30
Value099.6590.99659
Percentage of DebtInstrumentProceedsAsPercentageOfParValue0.00.00.0

acc:SeniorNotesJanuary2020


Debt
Period End2021-06-302021-03-31
Value099.81
Percentage of DebtInstrumentProceedsAsPercentageOfParValue0.00.0

acc:SeniorNotesJune2014


Debt
Period End2021-06-302021-03-31
Value099.861
Percentage of DebtInstrumentProceedsAsPercentageOfParValue0.00.0

acc:SeniorNotesJune2019


Debt
Period End2021-06-302021-03-31
Value099.704
Percentage of DebtInstrumentProceedsAsPercentageOfParValue0.00.0

acc:SeniorNotesJune2020


Debt
Period End2021-06-302021-03-31
Value099.142
Percentage of DebtInstrumentProceedsAsPercentageOfParValue0.00.0

acc:SeniorNotesOctober2017


Debt
Period End2021-06-302021-03-31
Value099.912
Percentage of DebtInstrumentProceedsAsPercentageOfParValue0.00.0

acc:Depositswithdrawstodeferredcompensationplannetofwithdrawsdeposits us-gaap:StatementEquityComponents

acc:Depositswithdrawstodeferredcompensationplannetofwithdrawsdeposits

acc:CommonStockHeldinRabbiTrust


Depositswithdrawstodeferredcompensationplannetofwithdrawsdepositsus-gaap:
Period End2021-06-302021-03-312020-06-302020-03-312019-09-302019-06-302019-03-312018-06-302018-03-31
Value404000.0375000.0336000.0129000.0-118000.0-206000.0-70000.0-275000.0127000.0
Percentage of Depositswithdrawstodeferredcompensationplannetofwithdrawsdeposits100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AdditionalPaidInCapital


Depositswithdrawstodeferredcompensationplannetofwithdrawsdepositsus-gaap:
Period End2021-06-302021-03-312020-06-302020-03-312019-09-302019-06-302019-03-312018-06-302018-03-31
Value-404000.0-375000.0-336000.0-129000.0118000.0206000.070000.0275000.0-127000.0
Percentage of Depositswithdrawstodeferredcompensationplannetofwithdrawsdeposits-100.0-100.0-100.0-100.0-100.0-100.0-100.0-100.0-100.0

acc:DevelopmentAndManagementFeesRevenue us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments

acc:DevelopmentAndManagementFeesRevenue

us-gaap:OperatingSegments, acc:DevelopmentServices


Development
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-09-302012-06-30
Value0.8661.9592.0122.1861.292.0550.6625.6113.6073.1713.3980.8352.2020.8466.0643.5660.6750.4560.6770.7732.1211.0351.7860.9371.6770.5640.3941.8561.5810.1870.8270.6220.5550.4791.4673.866
Percentage of DevelopmentAndManagementFeesRevenue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

acc:GainLossonDispositionofRealEstate

acc:GainLossonDispositionofRealEstate


Gain
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-30
Value0.00.00.0480.2290.0-0.2820.00.00.0420.00.0-0.6320.03.7880.00.0170.04.6573.7944-0.301-0.0670.00.00.00.0
Percentage of GainLossonDispositionofRealEstate0.00.00.0100.0100.00.0100.00.00.00.0100.00.00.0100.00.0100.00.00.0100.00.0100.0100.0100.0100.0100.00.00.00.00.0

acc:IncomeLossFromContinuingOperationsAttributableToParentNetOfAmountAllocatedToParticipatingSecurities

acc:IncomeLossFromContinuingOperationsAttributableToParentNetOfAmountAllocatedToParticipatingSecurities


Income
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
Value-9.97314-20.032-13.86380199.92829-2.7534525-1.672-3.15133259.3151845281.591156926-6.107132526-5.6145.08819210.4111219151.446.90716123.3320.015
Percentage of IncomeLossFromContinuingOperationsAttributableToParentNetOfAmountAllocatedToParticipatingSecurities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

acc:IncomeLossFromContinuingOperationsAttributableToParentNetOfAmountAllocatedToParticipatingSecurities dei:LegalEntity

acc:AmericanCampusCommunitiesOperatingPartnershipLimitedPartnership


Income
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-31
Value24-20.098-13.9098024199.9732947-2.763452539-1.681-3.1733259.4031845281.616157026-6.17132526-5.6565.14720210.4311219151.297.00116
Percentage of IncomeLossFromContinuingOperationsAttributableToParentNetOfAmountAllocatedToParticipatingSecurities0.0100.3100.3100.30.0100.3100.5100.40.0100.4100.7100.70.0100.5100.6100.8100.8100.9101.0101.1101.3101.6101.3101.0101.1101.0101.2101.2101.2100.7101.2101.1101.1104.9101.2101.2103.889.6101.4101.4

acc:IncreaseDecreaseInFairValueOfInterestRateSwapsNet

acc:IncreaseDecreaseInFairValueOfInterestRateSwapsNet


Increase
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value1419000.0-145000.0-10229000.01551000.0-578000.04400000.0-5896000.0-2526000.0-23000.078000.0363000.0390000.0129000.053000.0382000.01621000.01167000.0-125000.0-1513000.02273000.0-1420000.0845000.0-1868000.0-1065000.02073000.0-755000.0-993000.0775000.0-1163000.04801000.0813000.0890000.0-2386000.0-5209000.03404000.0748000.0468000.0182000.0745000.01040000.0-484000.0-871000.0-832000.0
Percentage of IncreaseDecreaseInFairValueOfInterestRateSwapsNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

acc:IncreaseDecreaseInFairValueOfInterestRateSwapsNet dei:LegalEntity

acc:AmericanCampusCommunitiesOperatingPartnershipLimitedPartnership


Increase
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-31
Value1419000.0-145000.0-10229000.01551000.0-578000.04400000.0-5896000.0-2526000.0-23000.078000.0363000.0390000.0129000.053000.0382000.01621000.01167000.0-125000.0-1513000.02273000.0-1420000.0845000.0-1868000.0415000.02073000.0-755000.0-993000.0775000.0-1163000.04801000.0813000.0890000.0-2386000.0-5209000.03404000.0748000.0468000.0182000.0745000.0
Percentage of IncreaseDecreaseInFairValueOfInterestRateSwapsNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0-39.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

acc:LesseeOperatingLeaseRentAbatements

acc:LesseeOperatingLeaseRentAbatements


Lessee
Period End2021-06-30
Value1570000.0
Percentage of LesseeOperatingLeaseRentAbatements100.0

acc:LesseeOperatingLeaseRentConcessions

acc:LesseeOperatingLeaseRentConcessions


Lessee
Period End2021-03-31
Value1100000.0
Percentage of LesseeOperatingLeaseRentConcessions100.0

acc:LessorOperatingLeaseRentRefunds us-gaap:RealEstateAndAccumulatedDepreciationDescriptionOfProperty

acc:LessorOperatingLeaseRentRefunds

acc:AceProperties


Lessor
Period End2021-06-302021-03-312020-06-30
Value0.6941.315
Percentage of LessorOperatingLeaseRentRefunds100.0100.0100.0

acc:LessorOperatingLeaseRentReimbursements us-gaap:RealEstateAndAccumulatedDepreciationDescriptionOfProperty

acc:LessorOperatingLeaseRentReimbursements

acc:AceProperties


Lessor
Period End2021-06-302021-03-31
Value900000.01300000.0
Percentage of LessorOperatingLeaseRentReimbursements100.0100.0

acc:LessorPercentageOfNetCashFlowReceivablePerAgreement us-gaap:RealEstateProperties

acc:LessorPercentageOfNetCashFlowReceivablePerAgreement

acc:OnCampusParticipatingProperties


Lessor
Period End2021-06-302021-03-312020-12-31
Value050.00
Percentage of LessorPercentageOfNetCashFlowReceivablePerAgreement0.0100.00.0

acc:NetIncomeLossAvailabletoCommonUnitholders dei:LegalEntity

acc:NetIncomeLossAvailabletoCommonUnitholders

acc:AmericanCampusCommunitiesOperatingPartnershipLimitedPartnership


Net
Period End2020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-09-302014-06-30
Value-19.581-13.3981201029-2.3554626-1.321-2.781349.73218461.881570-5.9113
Percentage of NetIncomeLossAvailabletoCommonUnitholders100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

acc:NoncontrollingInterestDecreaseFromDistributions dei:LegalEntity

acc:NoncontrollingInterestDecreaseFromDistributions

acc:AmericanCampusCommunitiesOperatingPartnershipLimitedPartnership


Noncontrolling
Period End2020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value6565656564636363636060605956
Percentage of NoncontrollingInterestDecreaseFromDistributions100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

acc:NoncontrollingInterestDecreaseFromDistributions dei:LegalEntity, us-gaap:PartnerTypeOfPartnersCapitalAccount

acc:AmericanCampusCommunitiesOperatingPartnershipLimitedPartnership, us-gaap:GeneralPartner


Noncontrolling
Period End2020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value0.0060.0050.0060.0060.0050.0060.0050.0060.0060.0050.0050.0050.0060.005
Percentage of NoncontrollingInterestDecreaseFromDistributions0.00.00.00.00.00.00.00.00.00.00.00.00.00.0

acc:AmericanCampusCommunitiesOperatingPartnershipLimitedPartnership, us-gaap:LimitedPartner


Noncontrolling
Period End2020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value6565656564636363636060605956
Percentage of NoncontrollingInterestDecreaseFromDistributions100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

acc:NoncontrollingInterestIncreasefromContributionsbyNoncontrollingPartners

acc:NoncontrollingInterestIncreasefromContributionsbyNoncontrollingPartners


Noncontrolling
Period End2020-09-302019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-07-31
Value6.110.220.0790.6250.04.9451989.5150.0960.00.08.1581.2160.00.00.0560.6696.67.3
Percentage of NoncontrollingInterestIncreasefromContributionsbyNoncontrollingPartners100.0100.0100.0100.00.0100.0100.0100.0100.00.00.0100.0100.00.00.0100.0100.0100.0100.0

acc:NoncontrollingInterestIncreasefromContributionsbyNoncontrollingPartners dei:LegalEntity

acc:AmericanCampusCommunitiesOperatingPartnershipLimitedPartnership


Noncontrolling
Period End2020-09-302019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-31
Value6.110.220.0790.6250.04.9451989.5150.0960.00.08.158-1.3280.00.00.0560.669
Percentage of NoncontrollingInterestIncreasefromContributionsbyNoncontrollingPartners100.0100.0100.0100.00.0100.0100.0100.0100.00.00.0100.0-109.20.00.0100.0100.0

acc:NoncontrollingInterestIncreasefromContributionsbyNoncontrollingPartners dei:LegalEntity, us-gaap:RealEstateProperties, us-gaap:StatementEquityComponents

acc:AmericanCampusCommunitiesOperatingPartnershipLimitedPartnership, us-gaap:PartiallyOwnedProperties, us-gaap:NoncontrollingInterest


Noncontrolling
Period End2020-09-302019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-31
Value6.110.220.0790.6250.04.9451989.5150.0960.00.08.158-1.3280.00.00.0560.669
Percentage of NoncontrollingInterestIncreasefromContributionsbyNoncontrollingPartners100.0100.0100.0100.00.0100.0100.0100.0100.00.00.0100.0-109.20.00.0100.0100.0

acc:NoncontrollingInterestIncreasefromContributionsbyNoncontrollingPartners us-gaap:RealEstateProperties, us-gaap:StatementEquityComponents

us-gaap:PartiallyOwnedProperties, us-gaap:NoncontrollingInterest


Noncontrolling
Period End2020-09-302019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-31
Value6.110.220.0790.6254.9451989.5150.0960.00.08.1581.2160.00.00.0560.669
Percentage of NoncontrollingInterestIncreasefromContributionsbyNoncontrollingPartners100.0100.0100.0100.0100.0100.0100.0100.00.00.0100.0100.00.00.0100.0100.0

acc:OperatingExpensesExcludingGeneralAdministrativeDepreciationAndLeaseExpense dei:LegalEntity, us-gaap:RealEstateProperties

acc:OperatingExpensesExcludingGeneralAdministrativeDepreciationAndLeaseExpense

acc:AmericanCampusCommunitiesOperatingPartnershipLimitedPartnership, acc:OnCampusParticipatingProperties


Operating
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-31
Value3.1643.7833.2083.3663.4433.8223.8063.9573.5723.8753.733.4253.3043.9233.8923.2653.3223.7843.2993.0423.273.5572.9422.6683.0253.0032.782.4822.5953.0212.9292.5042.7673.012.8012.4952.6852.872.8811.744
Percentage of OperatingExpensesExcludingGeneralAdministrativeDepreciationAndLeaseExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

acc:AmericanCampusCommunitiesOperatingPartnershipLimitedPartnership, acc:OwnedProperties


Operating
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value93106859295111909291107
Percentage of OperatingExpensesExcludingGeneralAdministrativeDepreciationAndLeaseExpense2961.92815.72673.02747.32785.22926.12384.72329.32556.82787.0

acc:OperatingExpensesExcludingGeneralAdministrativeDepreciationAndLeaseExpense us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments

us-gaap:OperatingSegments, acc:OnCampusParticipatingProperties


Operating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-09-302012-06-30
Value3.2793.293.1643.7833.2083.3663.4433.8223.8063.9573.5723.8753.733.4254.2753.6113.5622.9362.9463.5073.0132.7582.9923.3132.6752.4272.7622.7862.5922.2972.4072.852.7422.3232.8562.612
Percentage of OperatingExpensesExcludingGeneralAdministrativeDepreciationAndLeaseExpense0.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0129.492.091.589.988.792.791.390.791.593.190.991.091.392.893.292.592.894.393.692.894.993.3

us-gaap:OperatingSegments, acc:OwnedProperties


Operating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value959393106859295111909291107
Percentage of OperatingExpensesExcludingGeneralAdministrativeDepreciationAndLeaseExpense0.00.02961.92815.72673.02747.32785.22926.12384.72329.32556.82787.0

acc:OperatingExpensesExcludingGeneralAdministrativeDepreciationAndLeaseExpense us-gaap:RealEstateProperties

acc:OnCampusParticipatingProperties


Operating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-31
Value3.2793.293.1643.7833.2083.3663.4433.8223.8063.9573.5723.8753.733.4253.3043.9233.8923.2653.3223.7843.2993.0423.273.5572.9422.6683.0253.0032.782.4822.5953.0212.9292.5042.7673.012.8012.4952.6852.872.8811.744
Percentage of OperatingExpensesExcludingGeneralAdministrativeDepreciationAndLeaseExpense0.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

acc:OwnedProperties


Operating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value959393106859295111909291107
Percentage of OperatingExpensesExcludingGeneralAdministrativeDepreciationAndLeaseExpense0.00.02961.92815.72673.02747.32785.22926.12384.72329.32556.82787.0

acc:OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationOfSwapInterestAccrualsToInterestExpenseBeforeTax

acc:OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationOfSwapInterestAccrualsToInterestExpenseBeforeTax


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-30
Value1295000.01306000.01360000.01351000.01042000.091000.072000.087000.032000.0
Percentage of OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationOfSwapInterestAccrualsToInterestExpenseBeforeTax100.0100.0100.0100.0100.0100.0100.0100.0100.0

acc:PaymentOfOrdinaryDividendsCommonStockAndPreferredStock

acc:PaymentOfOrdinaryDividendsCommonStockAndPreferredStock


Payment
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value65656565656564656463
Percentage of PaymentOfOrdinaryDividendsCommonStockAndPreferredStock100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

acc:PaymentOfOrdinaryDividendsCommonStockAndPreferredStock dei:LegalEntity, us-gaap:StatementClassOfStock

acc:AmericanCampusCommunitiesOperatingPartnershipLimitedPartnership, acc:CommonandPreferredUnits


Payment
Period End2020-09-302020-06-302020-03-312019-09-302019-06-302019-03-31
Value646464646463
Percentage of PaymentOfOrdinaryDividendsCommonStockAndPreferredStock99.699.699.399.799.799.6

acc:AmericanCampusCommunitiesOperatingPartnershipLimitedPartnership, acc:UnvestedRestrictedStockAwards


Payment
Period End2020-09-302020-06-302020-03-312019-09-302019-06-302019-03-31
Value0.5170.5190.6620.4580.4580.573
Percentage of PaymentOfOrdinaryDividendsCommonStockAndPreferredStock0.80.81.00.70.70.9

acc:PurchaseAndSaleAgreementUponExerciseOfOption us-gaap:GuaranteeObligationsByNature

acc:PurchaseAndSaleAgreementUponExerciseOfOption

us-gaap:PerformanceGuarantee


Purchase
Period End2021-06-302021-03-312019-06-30
Value0.02828
Percentage of PurchaseAndSaleAgreementUponExerciseOfOption0.0100.0100.0

acc:RentAbatements acc:LessorLeaseArrangement

acc:RentAbatements

acc:StudentLeasePropertyResidentHardshipProgram


Rent
Period End2021-06-302021-03-312020-12-312020-09-302020-06-30
Value0.2860.80.94.78.6
Percentage of RentAbatements100.0100.0100.0100.0100.0

acc:StudentLeasePropertyUniversityPartnerships


Rent
Period End2020-12-312020-09-302020-06-30
Value1.52.115
Percentage of RentAbatements166.744.7175.6

acc:RentAbatements us-gaap:RealEstateProperties

acc:OnCampusParticipatingProperties


Rent
Period End2020-12-312020-06-30
Value0.01.5
Percentage of RentAbatements0.017.4

acc:SaleOfStockWeightedAveragePricePerShare us-gaap:SubsequentEventType, us-gaap:SubsidiarySaleOfStock

acc:SaleOfStockWeightedAveragePricePerShare

us-gaap:SubsequentEvent, acc:ATMEquityProgram


Sale
Period End2021-08-05
Value49.52
Percentage of SaleOfStockWeightedAveragePricePerShare100.0

acc:SaleOfStockWeightedAveragePricePerShare us-gaap:SubsidiarySaleOfStock

acc:ATMEquityProgram


Sale
Period End2021-06-30
Value48.79
Percentage of SaleOfStockWeightedAveragePricePerShare0.0

acc:Scheduledprincipalpaymentsondebt

acc:Scheduledprincipalpaymentsondebt


Scheduledprincipalpaymentsondebt
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value1.5591.5881.7896.081.9432.042.0955.8261.9772.041.976
Percentage of Scheduledprincipalpaymentsondebt100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

acc:Scheduledprincipalpaymentsondebt dei:LegalEntity

acc:AmericanCampusCommunitiesOperatingPartnershipLimitedPartnership


Scheduledprincipalpaymentsondebtdei:
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value1.7896.081.9432.042.0955.8261.9772.041.976
Percentage of Scheduledprincipalpaymentsondebt100.0100.0100.0100.0100.0100.0100.0100.0100.0

acc:SegmentReportingInformationOperatingIncomeLossBeforeDepreciationAndAmortization us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments

acc:SegmentReportingInformationOperatingIncomeLossBeforeDepreciationAndAmortization

us-gaap:OperatingSegments, acc:DevelopmentServices


Segment
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-09-302012-06-30
Value-1.294-0.276-0.720.092-0.79-0.47-1.6313.5311.0791.2851.343-1.2210.487-1.3599.842-0.619-2.932-3.148-2.672-2.661-1.264-2.56-1.707-2.27-2.248-2.543-2.718-1.335-1.156-2.656-1.804-2.537-2.238-2.11-1.31.505
Percentage of SegmentReportingInformationOperatingIncomeLossBeforeDepreciationAndAmortization100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OperatingSegments, acc:OnCampusParticipatingProperties


Segment
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-09-302012-06-30
Value0.5184.6165.1960.233-0.5275.366.0431.5730.5215.3475.4581.2210.4314.9914.431.4480.5045.145.3741.5080.7695.024.871.3210.8024.424.430.8360.3844.1183.9710.2320.0633.8670.2870.156
Percentage of SegmentReportingInformationOperatingIncomeLossBeforeDepreciationAndAmortization-40.0-1672.5-721.7253.366.7-1140.4-370.544.548.3416.1406.4-100.088.5-367.345.0-233.9-17.2-163.3-201.1-56.7-60.8-196.1-285.3-58.2-35.7-173.8-163.0-62.6-33.2-155.0-220.1-9.1-2.8-183.3-22.110.4

us-gaap:OperatingSegments, acc:OwnedProperties


Segment
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value9811811879861341369310612512987
Percentage of SegmentReportingInformationOperatingIncomeLossBeforeDepreciationAndAmortization-7582.0-42953.3-16478.886719.6-10906.1-28553.0-8380.52643.29901.59783.79648.5-7205.7

us-gaap:OperatingSegments, acc:PropertyManagementServices


Segment
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-09-302012-06-30
Value-0.0290.2090.445-0.196-0.2290.1470.325-0.0081.480.0110.6720.3530.6230.738-10.0844.3853.7964.1284.815.4645.0665.3775.2045.3634.8995.0414.7214.3134.5484.5764.7914.6724.5864.5123.3762.943
Percentage of SegmentReportingInformationOperatingIncomeLossBeforeDepreciationAndAmortization2.2-75.7-61.8-213.029.0-31.3-19.9-0.2137.20.950.0-28.9127.9-54.3-102.5-708.4-129.5-131.1-180.0-205.3-400.8-210.0-304.9-236.3-217.9-198.2-173.7-323.1-393.4-172.3-265.6-184.2-204.9-213.8-259.7195.5

acc:TotalConsolidatedRevenuesIncludingInterestIncome

acc:TotalConsolidatedRevenuesIncludingInterestIncome


Total
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-30
Value208232233203186250256228218243246214221221228198180194205197187201203181178
Percentage of TotalConsolidatedRevenuesIncludingInterestIncome100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

acc:UndistributedEarningsLossAllocatedtoParticipatingSecuritiesBasicandDiluted dei:LegalEntity

acc:UndistributedEarningsLossAllocatedtoParticipatingSecuritiesBasicandDiluted

acc:AmericanCampusCommunitiesOperatingPartnershipLimitedPartnership


Undistributed
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-30
Value444000.0517000.0519000.0662000.0413000.0458000.0458000.0573000.0231000.0408000.0377000.0506000.0319000.0360000.0389000.0468000.0287000.0329000.0329000.0393000.0219000.0264000.0269000.0334000.0232000.0260000.0263000.0321000.0217000.0218000.0
Percentage of UndistributedEarningsLossAllocatedtoParticipatingSecuritiesBasicandDiluted100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AdjustmentsToAdditionalPaidInCapitalIncreaseInCarryingAmountOfRedeemablePreferredStock

us-gaap:AdjustmentsToAdditionalPaidInCapitalIncreaseInCarryingAmountOfRedeemablePreferredStock


Adjustments
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value2.0310.3540.2643.41-9.4912-0.662.547131654.426-4.526
Percentage of AdjustmentsToAdditionalPaidInCapitalIncreaseInCarryingAmountOfRedeemablePreferredStock100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AdjustmentsToAdditionalPaidInCapitalIncreaseInCarryingAmountOfRedeemablePreferredStock dei:LegalEntity

acc:AmericanCampusCommunitiesOperatingPartnershipLimitedPartnership


Adjustments
Period End2020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value0.2643.41-9.4912-0.662.547131654.426-4.526
Percentage of AdjustmentsToAdditionalPaidInCapitalIncreaseInCarryingAmountOfRedeemablePreferredStock100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AdjustmentsToAdditionalPaidInCapitalIncreaseInCarryingAmountOfRedeemablePreferredStock dei:LegalEntity, us-gaap:PartnerTypeOfPartnersCapitalAccount

acc:AmericanCampusCommunitiesOperatingPartnershipLimitedPartnership, us-gaap:LimitedPartner


Adjustments
Period End2020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value0.2643.41-9.4912-0.662.547131654.426-4.526
Percentage of AdjustmentsToAdditionalPaidInCapitalIncreaseInCarryingAmountOfRedeemablePreferredStock100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AdjustmentsToAdditionalPaidInCapitalIncreaseInCarryingAmountOfRedeemablePreferredStock us-gaap:StatementEquityComponents

us-gaap:AdditionalPaidInCapital


Adjustments
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value2.0310.3540.2643.41-9.4912-0.662.547131654.426-4.526
Percentage of AdjustmentsToAdditionalPaidInCapitalIncreaseInCarryingAmountOfRedeemablePreferredStock100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AmortizationOfFinancingCostsAndDiscounts

us-gaap:AmortizationOfFinancingCostsAndDiscounts


Amortization
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value1263000.01107000.0232000.0529000.0382000.0-3000.0249000.0236000.072000.0-19000.0-69000.0-25000.0995000.0-16000.0-180000.0-885000.0-905000.0-901000.0-1092000.0-1681000.0-1757000.0-615000.0-1554000.0-1746000.0-1440000.0-1540000.0-1702000.0-1720000.0-1681000.0-1666000.0-1891000.0-2036000.0-2077000.0-2284000.0-588000.0460000.0738000.0706000.0265000.0480000.0-112000.0-307000.0-234000.0799000.01011000.01109000.0
Percentage of AmortizationOfFinancingCostsAndDiscounts100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AmortizationOfFinancingCostsAndDiscounts dei:LegalEntity

acc:AmericanCampusCommunitiesOperatingPartnershipLimitedPartnership


Amortization
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
Value232000.0529000.0382000.0-3000.0249000.0236000.072000.0-19000.0-69000.0-25000.0995000.0-16000.0-180000.0-885000.0-905000.0-901000.0-1092000.0-1681000.0-1757000.0-615000.0-1554000.0-1746000.0-1440000.0-1540000.0-1702000.0-1720000.0-1681000.0-1666000.0-1891000.0-2036000.0-2077000.0-2284000.0-588000.0460000.0738000.0706000.0
Percentage of AmortizationOfFinancingCostsAndDiscounts100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AssetAcquisitionConsiderationTransferred us-gaap:PropertyPlantAndEquipmentByType

us-gaap:AssetAcquisitionConsiderationTransferred

us-gaap:Land


Asset
Period End2021-05-31
Value12
Percentage of AssetAcquisitionConsiderationTransferred100.0

us-gaap:CashFlowHedgeGainLossToBeReclassifiedWithinTwelveMonths

us-gaap:CashFlowHedgeGainLossToBeReclassifiedWithinTwelveMonths


Cash
Period End2021-06-302021-03-312020-12-31
Value06800000.0-100000.0
Percentage of CashFlowHedgeGainLossToBeReclassifiedWithinTwelveMonths0.0100.0100.0

us-gaap:CommonStockDividendsPerShareDeclared us-gaap:Dividends, us-gaap:SubsequentEventType

us-gaap:CommonStockDividendsPerShareDeclared

us-gaap:DividendDeclared, us-gaap:SubsequentEvent


Common
Period End2021-08-042020-07-292020-04-292019-10-312012-08-01
Value0.470.470.470.470.3375
Percentage of CommonStockDividendsPerShareDeclared100.0100.0100.0100.0100.0

us-gaap:ConstructionInProgressExpendituresIncurredButNotYetPaid

us-gaap:ConstructionInProgressExpendituresIncurredButNotYetPaid


Construction
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-31
Value-0.26518-0.467-3.4195.82427-8.1465.764.101355.789343.05612-8.241-0.4611510-12.2075.4691412
Percentage of ConstructionInProgressExpendituresIncurredButNotYetPaid100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ConstructionInProgressExpendituresIncurredButNotYetPaid dei:LegalEntity

acc:AmericanCampusCommunitiesOperatingPartnershipLimitedPartnership


Construction
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-31
Value-0.467-3.4195.82427-8.1465.764.101355.789343.05612-8.241-0.4611510-12.2075.4691412
Percentage of ConstructionInProgressExpendituresIncurredButNotYetPaid100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DepreciationAndAmortization

us-gaap:DepreciationAndAmortization


Depreciation
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value68686767666668686868686663646561555251525353545151505149484846454746392824242122212120191717
Percentage of DepreciationAndAmortization100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DepreciationAndAmortization dei:LegalEntity

acc:AmericanCampusCommunitiesOperatingPartnershipLimitedPartnership


Depreciation
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-31
Value67676666686868686866636465615552515253535451515051494848464547463928242422212121
Percentage of DepreciationAndAmortization100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0103.597.7100.097.0

us-gaap:DepreciationAndAmortization us-gaap:ConsolidationItems

us-gaap:OperatingSegments


Depreciation
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value68676666656567676767
Percentage of DepreciationAndAmortization99.098.998.898.798.798.798.298.498.398.2

us-gaap:DepreciationAndAmortization us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments

us-gaap:OperatingSegments, acc:OnCampusParticipatingProperties


Depreciation
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value2.0392.0422.051.8832.0452.0372.0462.2892.0162.0291.9631.962
Percentage of DepreciationAndAmortization3.03.03.02.83.13.13.03.32.93.02.93.0

us-gaap:OperatingSegments, acc:OwnedProperties


Depreciation
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value656564646363656565656562
Percentage of DepreciationAndAmortization96.095.995.895.995.695.695.395.095.495.395.395.1

us-gaap:DistributionMadeToLimitedPartnerDistributionsDeclaredPerUnit dei:LegalEntity

us-gaap:DistributionMadeToLimitedPartnerDistributionsDeclaredPerUnit

acc:AmericanCampusCommunitiesOperatingPartnershipLimitedPartnership


Distribution
Period End2020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-31
Value0.470.470.470.470.470.460.460.460.44
Percentage of DistributionMadeToLimitedPartnerDistributionsDeclaredPerUnit100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:GainLossOnSaleOfProperties

us-gaap:GainLossOnSaleOfProperties


Gain
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302017-12-31
Value0.00.00.0480.2290.0-0.2820.00.00.00.0
Percentage of GainLossOnSaleOfProperties0.00.00.0100.0100.00.0100.00.00.00.00.0

us-gaap:GainLossOnSaleOfProperties dei:LegalEntity

acc:AmericanCampusCommunitiesOperatingPartnershipLimitedPartnership


Gain
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302017-12-31
Value0.00.00.0480.2290.0-0.2820.00.00.00.0
Percentage of GainLossOnSaleOfProperties0.00.00.0100.0100.00.0100.00.00.00.00.0

us-gaap:IncomeLossFromContinuingOperationsPerOutstandingLimitedPartnershipUnitBasicNetOfTax dei:LegalEntity

us-gaap:IncomeLossFromContinuingOperationsPerOutstandingLimitedPartnershipUnitBasicNetOfTax

acc:AmericanCampusCommunitiesOperatingPartnershipLimitedPartnership


Income
Period End2020-12-312020-09-302019-12-312019-09-302019-03-312018-03-312017-12-312017-09-302017-03-312016-12-312016-09-302015-12-312015-09-302015-06-302014-12-312014-09-302014-06-302013-12-312013-09-302013-06-302012-12-312012-09-302012-06-30
Value0.17-0.150.180.140.210.190.29-0.010.250.190.070.260.010.140.25-0.060.130.25-0.050.050.21-0.020.13
Percentage of IncomeLossFromContinuingOperationsPerOutstandingLimitedPartnershipUnitBasicNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncreaseDecreaseInAccountsPayableAndAccruedLiabilities

us-gaap:IncreaseDecreaseInAccountsPayableAndAccruedLiabilities


Increase
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value11-27.178-2.8941418-36.1721.655198.179-30.5951.0852011-1.088-26.4251512-28.365-2.8521411-23.1568.0411.9097.558-21.509-3.168185.652-19.991.459137.49-17.541-3.42145.669-9.8-0.4876.6124.715-10.419-0.3664.1924.638-5.41
Percentage of IncreaseDecreaseInAccountsPayableAndAccruedLiabilities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncreaseDecreaseInAccountsPayableAndAccruedLiabilities dei:LegalEntity

acc:AmericanCampusCommunitiesOperatingPartnershipLimitedPartnership


Increase
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-31
Value-2.8941418-36.1721.655198.179-30.5951.0852011-1.088-26.4251512-28.365-2.8521411-23.1568.0411.9097.558-21.509-3.168185.652-19.991.459137.49-17.541-3.42145.669-9.8-0.4876.6124.715-10.419
Percentage of IncreaseDecreaseInAccountsPayableAndAccruedLiabilities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncreaseDecreaseInOtherOperatingAssets

us-gaap:IncreaseDecreaseInOtherOperatingAssets


Increase
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value203.479-16.7542.00910-6.99-4.6164.338-3.07.723-7.169117.803-2.1-5.038-11.278112.5351010-7.4991.6696.6231711-11.6671.3776.3349.506-4.585-1.2431.592131.661-15.5221.9771.55-5.9793.286-0.4214.5926.0-3.0270.5193.1660.095
Percentage of IncreaseDecreaseInOtherOperatingAssets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncreaseDecreaseInOtherOperatingAssets dei:LegalEntity

acc:AmericanCampusCommunitiesOperatingPartnershipLimitedPartnership


Increase
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-31
Value-16.7542.00910-6.99-4.6164.338-3.07.723-7.169117.803-2.1-5.038-11.278112.5351010-7.4991.6696.6231711-11.6671.3776.3349.506-4.585-1.2431.592131.661-15.5221.9771.55-5.9797.572-3.5596.193.254
Percentage of IncreaseDecreaseInOtherOperatingAssets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0230.4845.4134.854.2

us-gaap:IncreaseDecreaseInOtherOperatingLiabilities

us-gaap:IncreaseDecreaseInOtherOperatingLiabilities


Increase
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value-9.319-8.1-11.45850-15.289.499-35.80957-18.37716-46.3559-18.25212-19.68333-10.1445.731-24.03130-5.15-3.58-10.31827-7.5657.24-21.88732-6.3933.437-16.18128-0.942-2.064-5.26716-5.1260.788-4.40612-4.7370.453-7.00411-3.0950.137
Percentage of IncreaseDecreaseInOtherOperatingLiabilities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncreaseDecreaseInOtherOperatingLiabilities dei:LegalEntity

acc:AmericanCampusCommunitiesOperatingPartnershipLimitedPartnership


Increase
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-31
Value-11.45850-15.289.499-35.80957-18.37716-46.3559-18.25212-19.68333-10.1445.731-24.03130-5.15-3.58-10.31827-7.5657.24-21.88732-6.3933.437-16.18128-0.942-2.064-5.26716-5.1260.788-4.40612-4.7370.453
Percentage of IncreaseDecreaseInOtherOperatingLiabilities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:InterestAndOtherIncome us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments

us-gaap:InterestAndOtherIncome

us-gaap:OperatingSegments, acc:OnCampusParticipatingProperties


Interest
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-09-302012-06-30
Value3000.05000.03000.02000.07000.019000.0-3000.059000.070000.041000.028000.043000.041000.021000.018000.024000.015000.08000.06000.02000.02000.001000.01000.0000-3000.03000.03000.04000.08000.02000.02000.04000.04000.0
Percentage of InterestAndOtherIncome100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.00.00.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OperatingSegments, acc:OwnedProperties


Interest
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value261000.0127000.0112000.0115000.0115000.0117000.0118000.0117000.0119000.0119000.0290000.0382000.0
Percentage of InterestAndOtherIncome8700.02540.03733.35750.01642.9615.8-3933.3198.3170.0290.21035.7888.4

us-gaap:InterestCostsCapitalized

us-gaap:InterestCostsCapitalized


Interest
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
Value2.42.52.62.93.43.22.73.03.72.72.12.64.03.02.43.45.74.43.33.33.62.11.42.82.92.51.82.12.72.21.42.83.42.31.52.43.52.51.81.72.11.00.60.30.2
Percentage of InterestCostsCapitalized100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:InterestExpenseOther

us-gaap:InterestExpenseOther


Interest
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-31
Value2928292727282727
Percentage of InterestExpenseOther100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:InterestExpenseOther dei:LegalEntity

acc:AmericanCampusCommunitiesOperatingPartnershipLimitedPartnership


Interest
Period End2020-09-302020-06-302020-03-312019-09-302019-06-302019-03-31
Value292727282727
Percentage of InterestExpenseOther100.0100.0100.0100.0100.0100.0

us-gaap:InvestmentIncomeInterest

us-gaap:InvestmentIncomeInterest


Investment
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value352000.0220000.0363000.0855000.0870000.0851000.0831000.0960000.0969000.0926000.01094000.01274000.01243000.01223000.01222000.01259000.01232000.01232000.01455000.01272000.01475000.01279000.01125000.01099000.01085000.01112000.01045000.01055000.01037000.01031000.0840000.0792000.0947000.0427000.0402000.0429000.0414000.0516000.0209000.0166000.0159000.050000.0112000.042000.016000.017000.0
Percentage of InvestmentIncomeInterest100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:InvestmentIncomeInterest dei:LegalEntity

acc:AmericanCampusCommunitiesOperatingPartnershipLimitedPartnership


Investment
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-31
Value363000.0855000.0870000.0851000.0831000.0960000.0969000.0926000.01094000.01274000.01243000.01223000.01222000.01259000.01232000.01232000.01455000.01272000.01475000.01279000.01125000.01099000.01085000.01112000.01045000.01055000.01037000.01031000.0840000.0792000.0947000.0427000.0402000.0429000.0414000.0516000.0208000.0167000.0159000.050000.0
Percentage of InvestmentIncomeInterest100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.099.5100.6100.0100.0

us-gaap:LeaseCost

us-gaap:LeaseCost


Lease
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value3.4353.2083.483.0712.8934.0694.1513.2153.2363.5493.3292.9512.733
Percentage of LeaseCost100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:LeaseCost dei:LegalEntity

acc:AmericanCampusCommunitiesOperatingPartnershipLimitedPartnership


Lease
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value3.483.0712.8934.0694.1513.2153.2363.5493.3292.9512.733
Percentage of LeaseCost100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:LeaseCost us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments

us-gaap:OperatingSegments, acc:OnCampusParticipatingProperties


Lease
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value0.5340.1390.3760.5180.2540.861.0040.3530.8280.8820.6960.6440.793
Percentage of LeaseCost15.54.310.816.98.821.124.211.025.624.920.921.829.0

us-gaap:OperatingSegments, acc:OwnedProperties


Lease
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value2.9013.0693.1042.5532.6393.2093.1472.8622.4082.6672.6332.307
Percentage of LeaseCost84.595.789.283.191.278.975.889.074.475.179.178.2

us-gaap:LimitedLiabilityCompanyLLCOrLimitedPartnershipLPManagingMemberOrGeneralPartnerOwnershipInterest dei:LegalEntity, us-gaap:Ownership

us-gaap:LimitedLiabilityCompanyLLCOrLimitedPartnershipLPManagingMemberOrGeneralPartnerOwnershipInterest

acc:AmericanCampusCommunitiesHoldingsLLC, acc:AmericanCampusCommunitiesOperatingPartnershipLimitedPartnership


Limited
Period End2020-12-31
Value0
Percentage of LimitedLiabilityCompanyLLCOrLimitedPartnershipLPManagingMemberOrGeneralPartnerOwnershipInterest0.0

us-gaap:LimitedLiabilityCompanyLLCOrLimitedPartnershipLPMembersOrLimitedPartnersOwnershipInterest dei:LegalEntity, us-gaap:Ownership

us-gaap:LimitedLiabilityCompanyLLCOrLimitedPartnershipLPMembersOrLimitedPartnersOwnershipInterest

acc:AmericanCampusCommunitiesInc., acc:AmericanCampusCommunitiesOperatingPartnershipLimitedPartnership


Limited
Period End2020-12-31
Value0
Percentage of LimitedLiabilityCompanyLLCOrLimitedPartnershipLPMembersOrLimitedPartnersOwnershipInterest0.0

us-gaap:LimitedLiabilityCompanyLLCOrLimitedPartnershipLPMembersOrLimitedPartnersOwnershipInterest us-gaap:ConsolidatedEntities, us-gaap:Ownership

us-gaap:VariableInterestEntityNotPrimaryBeneficiary, acc:NashvilleJointVenture


Limited
Period End2020-08-31
Value50.0
Percentage of LimitedLiabilityCompanyLLCOrLimitedPartnershipLPMembersOrLimitedPartnersOwnershipInterest0.0

us-gaap:VariableInterestEntityPrimaryBeneficiary, acc:NashvilleJointVenture


Limited
Period End2020-08-31
Value50.0
Percentage of LimitedLiabilityCompanyLLCOrLimitedPartnershipLPMembersOrLimitedPartnersOwnershipInterest0.0

us-gaap:LitigationSettlementAmountAwardedToOtherParty

us-gaap:LitigationSettlementAmountAwardedToOtherParty


Litigation
Period End2021-06-302020-03-31
Value2000000.01500000.0
Percentage of LitigationSettlementAmountAwardedToOtherParty100.0100.0

us-gaap:MinorityInterestChangeInRedemptionValue dei:LegalEntity, us-gaap:StatementEquityComponents

us-gaap:MinorityInterestChangeInRedemptionValue

acc:AmericanCampusCommunitiesOperatingPartnershipLimitedPartnership, acc:TemporaryEquityRedeemableNoncontrollingInterests


Minority
Period End2020-09-302020-06-302020-03-312019-09-302019-06-302019-03-31
Value0.2643.41-9.4912-0.662.547
Percentage of MinorityInterestChangeInRedemptionValue100.0100.0100.0100.0100.0100.0

us-gaap:MinorityInterestChangeInRedemptionValue us-gaap:StatementEquityComponents

acc:TemporaryEquityRedeemableNoncontrollingInterests


Minority
Period End2021-06-302021-03-312020-06-302020-03-31
Value2.0310.3543.41-9.49
Percentage of MinorityInterestChangeInRedemptionValue0.00.0100.0100.0

us-gaap:NetIncomeLossAttributableToRedeemableNoncontrollingInterest dei:LegalEntity, us-gaap:StatementEquityComponents

us-gaap:NetIncomeLossAttributableToRedeemableNoncontrollingInterest

acc:AmericanCampusCommunitiesOperatingPartnershipLimitedPartnership, acc:TemporaryEquityRedeemableNoncontrollingInterests


Net
Period End2020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-06-302018-03-31
Value-52000.0-32000.0311000.0150000.0163000.0259000.0344000.0210000.0
Percentage of NetIncomeLossAttributableToRedeemableNoncontrollingInterest100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:NetIncomeLossAttributableToRedeemableNoncontrollingInterest us-gaap:StatementEquityComponents

acc:TemporaryEquityRedeemableNoncontrollingInterests


Net
Period End2021-06-302021-03-312020-06-302020-03-31
Value-17000.067000.0-32000.0311000.0
Percentage of NetIncomeLossAttributableToRedeemableNoncontrollingInterest0.00.0100.0100.0

us-gaap:NetIncomeLossIncludingPortionAttributableToNonredeemableNoncontrollingInterest

us-gaap:NetIncomeLossIncludingPortionAttributableToNonredeemableNoncontrollingInterest


Net
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-31
Value-11.03615-21.372-15.3981191031-2.7374526
Percentage of NetIncomeLossIncludingPortionAttributableToNonredeemableNoncontrollingInterest100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:NetIncomeLossIncludingPortionAttributableToNonredeemableNoncontrollingInterest dei:LegalEntity

acc:AmericanCampusCommunitiesOperatingPartnershipLimitedPartnership


Net
Period End2020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-31
Value-21.372-15.3981191031-2.7374526
Percentage of NetIncomeLossIncludingPortionAttributableToNonredeemableNoncontrollingInterest100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:NetIncomeLossIncludingPortionAttributableToNonredeemableNoncontrollingInterest dei:LegalEntity, us-gaap:PartnerTypeOfPartnersCapitalAccount

acc:AmericanCampusCommunitiesOperatingPartnershipLimitedPartnership, us-gaap:GeneralPartner


Net
Period End2020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-06-302018-03-31
Value-0.002-0.0010.0070.0010.0010.0030.0040.002
Percentage of NetIncomeLossIncludingPortionAttributableToNonredeemableNoncontrollingInterest0.00.00.00.00.00.00.00.0

acc:AmericanCampusCommunitiesOperatingPartnershipLimitedPartnership, us-gaap:LimitedPartner


Net
Period End2020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-31
Value-19.513-13.34380201029-2.3454625
Percentage of NetIncomeLossIncludingPortionAttributableToNonredeemableNoncontrollingInterest91.386.798.9105.4103.495.385.7100.899.6

us-gaap:NetIncomeLossIncludingPortionAttributableToNonredeemableNoncontrollingInterest dei:LegalEntity, us-gaap:RealEstateProperties, us-gaap:StatementEquityComponents

acc:AmericanCampusCommunitiesOperatingPartnershipLimitedPartnership, us-gaap:PartiallyOwnedProperties, us-gaap:NoncontrollingInterest


Net
Period End2020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-31
Value-1.857-2.0460.895-1.037-0.3391.469-0.392-0.3630.113
Percentage of NetIncomeLossIncludingPortionAttributableToNonredeemableNoncontrollingInterest8.713.31.1-5.4-3.44.714.3-0.80.4

us-gaap:NetIncomeLossIncludingPortionAttributableToNonredeemableNoncontrollingInterest us-gaap:RealEstateProperties, us-gaap:StatementEquityComponents

us-gaap:PartiallyOwnedProperties, us-gaap:NoncontrollingInterest


Net
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-31
Value-1.6340.3-1.857-2.0460.895-1.037-0.3391.469-0.392-0.3630.113
Percentage of NetIncomeLossIncludingPortionAttributableToNonredeemableNoncontrollingInterest14.81.98.713.31.1-5.4-3.44.714.3-0.80.4

us-gaap:NetIncomeLossIncludingPortionAttributableToNonredeemableNoncontrollingInterest us-gaap:StatementEquityComponents

us-gaap:RetainedEarnings


Net
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-31
Value-9.40215-19.515-13.34480201029-2.3454625
Percentage of NetIncomeLossIncludingPortionAttributableToNonredeemableNoncontrollingInterest85.298.191.386.798.9105.4103.495.385.7100.899.6

us-gaap:NetIncomeLossNetOfTaxPerOutstandingLimitedPartnershipUnitDiluted dei:LegalEntity

us-gaap:NetIncomeLossNetOfTaxPerOutstandingLimitedPartnershipUnitDiluted

acc:AmericanCampusCommunitiesOperatingPartnershipLimitedPartnership


Net
Period End2020-12-312020-09-302019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
Value0.18-0.150.180.140.070.210.34-0.020.330.180.28-0.01-0.020.250.190.070.140.360.250.010.140.630.25-0.060.120.270.260.450.070.20.2300.160.26
Percentage of NetIncomeLossNetOfTaxPerOutstandingLimitedPartnershipUnitDiluted100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0

us-gaap:OperatingLeaseLeaseIncome acc:LessorLeaseArrangement

us-gaap:OperatingLeaseLeaseIncome

acc:CommercialLeaseProperty


Operating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value2.992.9452.7532.92.93.23.23.43.23.43.43.23.23.3
Percentage of OperatingLeaseLeaseIncome100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

acc:StudentLeaseProperty


Operating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value186213214186176231236199194221224189179201
Percentage of OperatingLeaseLeaseIncome6246.57261.67782.86433.16100.07231.27381.25876.56071.96520.66600.05912.55606.26112.1

us-gaap:OperatingLeaseLeaseIncome dei:LegalEntity, us-gaap:RealEstateProperties

acc:AmericanCampusCommunitiesOperatingPartnershipLimitedPartnership, acc:OnCampusParticipatingProperties


Operating
Period End2020-12-312020-09-302020-06-302019-12-312019-09-302019-06-30
Value9.715.3864.101116.9446.396
Percentage of OperatingLeaseLeaseIncome352.7185.7141.4361.2204.2199.9

acc:AmericanCampusCommunitiesOperatingPartnershipLimitedPartnership, acc:OwnedProperties


Operating
Period End2020-12-312020-09-302020-06-302019-12-312019-09-302019-06-30
Value217191177238211203
Percentage of OperatingLeaseLeaseIncome7893.66610.76109.97465.96208.36348.6

us-gaap:OperatingLeaseLeaseIncome us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments

us-gaap:OperatingSegments, acc:OnCampusParticipatingProperties


Operating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-30
Value5.2218.9589.715.3864.10110116.9446.396
Percentage of OperatingLeaseLeaseIncome174.6304.2352.7185.7141.4334.7361.2204.2199.9

us-gaap:OperatingSegments, acc:OwnedProperties


Operating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-30
Value199218218192177232239211203
Percentage of OperatingLeaseLeaseIncome6676.47417.57921.16632.16120.37275.37493.76229.66372.0

us-gaap:OperatingLeaseLeaseIncome us-gaap:RealEstateProperties

acc:OnCampusParticipatingProperties


Operating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-30
Value5.2218.9589.715.3864.10110116.9446.396
Percentage of OperatingLeaseLeaseIncome174.6304.2352.7185.7141.4334.7361.2204.2199.9

acc:OwnedProperties


Operating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-30
Value199218217191177232238211203
Percentage of OperatingLeaseLeaseIncome6676.47417.57893.66610.76109.97275.37465.96208.36348.6

us-gaap:OtherAmortizationOfDeferredCharges us-gaap:ConsolidationItems

us-gaap:OtherAmortizationOfDeferredCharges

us-gaap:MaterialReconcilingItems


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value1418000.01319000.01368000.01349000.01255000.01287000.0-8677000.01315000.01218000.01132000.0
Percentage of OtherAmortizationOfDeferredCharges100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTaxParent

us-gaap:OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTaxParent


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value1351000.02518000.01837000.01851000.0282000.0-9801000.01983000.0-145000.0-8593000.0-5794000.0-2422000.081000.0180000.0
Percentage of OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTaxParent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTaxParent dei:LegalEntity

acc:AmericanCampusCommunitiesOperatingPartnershipLimitedPartnership


Other
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value1837000.01851000.0282000.0-9801000.01983000.0-145000.0-8593000.0-5794000.0-2422000.081000.0180000.0
Percentage of OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTaxParent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAfterTax

us-gaap:OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAfterTax


Other
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-31
Value1351000.02518000.01851000.0282000.0-9801000.0-145000.0-4566000.05794000.081000.0-180000.0465000.0
Percentage of OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAfterTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAfterTax dei:LegalEntity

acc:AmericanCampusCommunitiesOperatingPartnershipLimitedPartnership


Other
Period End2020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-31
Value1851000.0282000.0-9801000.0-145000.0-4566000.05794000.081000.0-180000.0-465000.0
Percentage of OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAfterTax100.0100.0100.0100.0100.0100.0100.0100.0-100.0

us-gaap:OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAfterTax dei:LegalEntity, us-gaap:StatementEquityComponents

acc:AmericanCampusCommunitiesOperatingPartnershipLimitedPartnership, us-gaap:AccumulatedOtherComprehensiveIncome


Other
Period End2020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-31
Value1851000.0282000.0-9801000.0-145000.0-4566000.05794000.081000.0-180000.0-465000.0
Percentage of OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAfterTax100.0100.0100.0100.0100.0100.0100.0100.0-100.0

us-gaap:OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAfterTax us-gaap:StatementEquityComponents

us-gaap:AccumulatedOtherComprehensiveIncome


Other
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-31
Value1351000.02518000.01851000.0282000.0-9801000.0-145000.0-4566000.05794000.081000.0-180000.0-465000.0
Percentage of OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAfterTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0-100.0

us-gaap:OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAndTax

us-gaap:OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAndTax


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value-374000.0786000.059000.068000.0-1187000.0-10229000.01551000.0-578000.04400000.0-5896000.0-2526000.0-23000.078000.0363000.0
Percentage of OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAndTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationBeforeTax us-gaap:IncomeStatementLocation

us-gaap:OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationBeforeTax

us-gaap:InterestExpense


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value430000.0426000.0418000.0432000.0427000.0428000.0432000.0433000.0166000.0102000.0104000.0104000.0102000.0102000.0
Percentage of OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationBeforeTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherDepreciationAndAmortization us-gaap:ConsolidationItems

us-gaap:OtherDepreciationAndAmortization

us-gaap:CorporateNonSegment


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value0.7060.7490.8180.8580.8850.8891.21.1351.1711.222
Percentage of OtherDepreciationAndAmortization100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherNonoperatingIncome

us-gaap:OtherNonoperatingIncome


Other
Period End2021-06-302020-09-302018-09-302017-09-302010-12-312010-09-30
Value157000.0264000.0570000.001793000.03901000.0
Percentage of OtherNonoperatingIncome100.0100.0100.00.0100.0100.0

us-gaap:OtherNonoperatingIncome dei:LegalEntity

acc:AmericanCampusCommunitiesOperatingPartnershipLimitedPartnership


Other
Period End2020-09-302018-09-302017-09-30
Value264000.0570000.00
Percentage of OtherNonoperatingIncome100.0100.00.0

us-gaap:PaymentsForCapitalImprovements dei:LegalEntity, us-gaap:RealEstateProperties

us-gaap:PaymentsForCapitalImprovements

acc:AmericanCampusCommunitiesOperatingPartnershipLimitedPartnership, acc:OnCampusParticipatingProperties


Payments
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-31
Value0.1670.7650.6010.5650.3811.750.5370.230.7361.3940.3781.1460.624
Percentage of PaymentsForCapitalImprovements100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

acc:AmericanCampusCommunitiesOperatingPartnershipLimitedPartnership, acc:OwnedProperties


Payments
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value112113111828131014
Percentage of PaymentsForCapitalImprovements7098.22795.22200.22097.74754.61617.42546.74674.32037.4

acc:AmericanCampusCommunitiesOperatingPartnershipLimitedPartnership, acc:OwnedPropertiesUnderDevelopment


Payments
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value6196728494128116104103118130122
Percentage of PaymentsForCapitalImprovements37091.012665.012046.314930.824908.47344.921630.745551.314006.48530.734502.910725.3

us-gaap:PaymentsForCapitalImprovements us-gaap:RealEstateProperties

acc:OnCampusParticipatingProperties


Payments
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-31
Value0.1670.7650.6010.5650.3811.750.5370.230.7361.3940.3781.1460.624
Percentage of PaymentsForCapitalImprovements100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

acc:OwnedProperties


Payments
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value169.329112113111828131014
Percentage of PaymentsForCapitalImprovements0.00.07098.22795.22200.22097.74754.61617.42546.74674.32037.4

acc:OwnedPropertiesUnderDevelopment


Payments
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-31
Value46576196728494128116104103118130122125
Percentage of PaymentsForCapitalImprovements0.00.037091.012665.012046.314930.824908.47344.921630.745551.314006.48530.734502.910725.320137.2

us-gaap:PaymentsForProceedsFromOtherInvestingActivities

us-gaap:PaymentsForProceedsFromOtherInvestingActivities


Payments
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-30
Value0.961-0.319-2.04-11.615131.347-4.6740.3691.2191.1230.791-1.1290.6931.314-0.70.952-0.2420.0170.150.309-6.971.527.12-6.0266.451-0.5120.2630.375-1.012-0.52-1.531.51.00.0-19.5756.974110.850.88-0.35
Percentage of PaymentsForProceedsFromOtherInvestingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0

us-gaap:PaymentsForProceedsFromOtherInvestingActivities dei:LegalEntity

acc:AmericanCampusCommunitiesOperatingPartnershipLimitedPartnership


Payments
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-30
Value-2.04-11.615131.347-4.6740.3691.2191.1230.791-1.1290.6931.314-0.70.952-0.2420.0170.150.309-6.971.527.12-6.0266.451-0.5120.2630.375-1.012-0.52-1.531.51.00.0-19.5756.974110.850.88-0.35
Percentage of PaymentsForProceedsFromOtherInvestingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0

us-gaap:PaymentsOfDebtExtinguishmentCosts

us-gaap:PaymentsOfDebtExtinguishmentCosts


Payments
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302017-12-312017-09-302016-12-312015-12-312014-12-31
Value0.00.00.04.1560.00.00.00.00.00.00.00.0230.00.0
Percentage of PaymentsOfDebtExtinguishmentCosts0.00.00.0100.00.00.00.00.00.00.00.00.0100.00.00.0

us-gaap:PaymentsOfDebtExtinguishmentCosts dei:LegalEntity

acc:AmericanCampusCommunitiesOperatingPartnershipLimitedPartnership


Payments
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302017-12-312017-09-302016-12-312015-12-312014-12-31
Value0.00.00.04.1560.00.00.00.00.00.00.00.0230.00.0
Percentage of PaymentsOfDebtExtinguishmentCosts0.00.00.0100.00.00.00.00.00.00.00.00.0100.00.00.0

us-gaap:PaymentsOfDebtIssuanceCosts

us-gaap:PaymentsOfDebtIssuanceCosts


Payments
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302010-12-31
Value7.3950.2370.00.04.9214.6930.0-0.14.7091.8530.00.00.6560.04.7251.4951.2584.5820.0870.00.00.7441.6052.5290.00.1960.0020.1674.4560.3966.268-0.0023.2450.9964.1522.4810.2083.1690.2170.0151.332
Percentage of PaymentsOfDebtIssuanceCosts100.0100.00.00.0100.0100.00.0100.0100.0100.00.00.0100.00.0100.0100.0100.0100.0100.00.00.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:PaymentsOfDebtIssuanceCosts dei:LegalEntity

acc:AmericanCampusCommunitiesOperatingPartnershipLimitedPartnership


Payments
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-30
Value0.00.04.9214.6930.0-0.14.7091.8530.00.00.6560.04.7251.4951.2584.5820.0870.00.00.7441.6052.5290.00.1960.0020.1674.4560.3966.268-0.0023.2450.9964.1522.4810.2083.1690.2170.015
Percentage of PaymentsOfDebtIssuanceCosts0.00.0100.0100.00.0100.0100.0100.00.00.0100.00.0100.0100.0100.0100.0100.00.00.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:PaymentsOfDividendsMinorityInterest

us-gaap:PaymentsOfDividendsMinorityInterest


Payments
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value1.4231.3720.2532.052.80.6131.5833.3253.9661.3570.3081510.49116600.6060.4980.4730.6420.7370.6650.6360.6950.7750.8580.4990.6110.630.5450.4160.4670.8930.8361.7820.6750.8170.8370.3560.4330.4880.4730.4340.5810.4990.495
Percentage of PaymentsOfDividendsMinorityInterest100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:PaymentsOfDividendsMinorityInterest dei:LegalEntity, us-gaap:StatementClassOfStock

acc:AmericanCampusCommunitiesOperatingPartnershipLimitedPartnership, us-gaap:PartiallyOwnedProperties


Payments
Period End2020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-09-302012-06-302012-03-312011-06-302011-03-31
Value0.0181.8162.5661.3483.0373.6610.1130.1530.10.0720.1520.3940.1070.1170.0570.0140.4390.4080.3460.4880.4880.1370.11
Percentage of PaymentsOfDividendsMinorityInterest7.188.691.685.291.392.317.620.815.010.419.645.917.518.610.53.049.248.851.359.758.328.123.3

us-gaap:PaymentsOfStockIssuanceCosts us-gaap:SubsidiarySaleOfStock

us-gaap:PaymentsOfStockIssuanceCosts

acc:ATMEquityProgram


Payments
Period End2021-06-30
Value0.477
Percentage of PaymentsOfStockIssuanceCosts100.0

us-gaap:PaymentsRelatedToTaxWithholdingForShareBasedCompensation

us-gaap:PaymentsRelatedToTaxWithholdingForShareBasedCompensation


Payments
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-31
Value04469000.00020000.04155000.000144000.03831000.00-1000.002757000.00637000.004283000.00002977000.0-78000.0002878000.0
Percentage of PaymentsRelatedToTaxWithholdingForShareBasedCompensation0.0100.00.00.0100.0100.00.00.0100.0100.00.0100.00.0100.00.0100.00.0100.00.00.00.0100.0100.00.00.0100.0

us-gaap:PaymentsRelatedToTaxWithholdingForShareBasedCompensation dei:LegalEntity

acc:AmericanCampusCommunitiesOperatingPartnershipLimitedPartnership


Payments
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-31
Value0020000.04155000.000144000.03831000.00-1000.002757000.00637000.004283000.00002977000.02800000.0-2878000.002878000.02345000.0
Percentage of PaymentsRelatedToTaxWithholdingForShareBasedCompensation0.00.0100.0100.00.00.0100.0100.00.0100.00.0100.00.0100.00.0100.00.00.00.0100.0-3589.70.00.0100.00.0

us-gaap:PaymentsToAcquireRealEstateHeldForInvestment

us-gaap:PaymentsToAcquireRealEstateHeldForInvestment


Payments
Period End2020-12-312019-12-312018-12-312018-09-302017-12-312017-09-302016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-31
Value110.0260.0641446.239570.0-6.8523108166650.0030.09.117141920.00.2634715784114189
Percentage of PaymentsToAcquireRealEstateHeldForInvestment100.00.0100.00.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0

us-gaap:PaymentsToAcquireRealEstateHeldForInvestment dei:LegalEntity

acc:AmericanCampusCommunitiesOperatingPartnershipLimitedPartnership


Payments
Period End2020-12-312019-12-312018-12-312018-09-302017-12-312017-09-302016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-31
Value110.0260.0641446.239570.0-6.8523108166650.0030.09.117141920.00.2634715784114189
Percentage of PaymentsToAcquireRealEstateHeldForInvestment100.00.0100.00.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0

us-gaap:PaymentsToMinorityShareholders

us-gaap:PaymentsToMinorityShareholders


Payments
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value0.00.00.07761440.00.00.0
Percentage of PaymentsToMinorityShareholders0.00.00.0100.0100.0100.00.00.00.0

us-gaap:PaymentsToMinorityShareholders dei:LegalEntity

acc:AmericanCampusCommunitiesOperatingPartnershipLimitedPartnership


Payments
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value0.00.00.07761440.00.00.0
Percentage of PaymentsToMinorityShareholders0.00.00.0100.0100.0100.00.00.00.0

us-gaap:PreferredStockDividendsAndOtherAdjustments dei:LegalEntity

us-gaap:PreferredStockDividendsAndOtherAdjustments

acc:AmericanCampusCommunitiesOperatingPartnershipLimitedPartnership


Preferred
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-31
Value14000.014000.014000.014000.014000.014000.09000.031000.031000.031000.031000.031000.031000.031000.031000.031000.031000.036000.037000.042000.044000.044000.044000.044000.044000.044000.045000.045000.045000.046000.045000.046000.046000.046000.045000.046000.046000.046000.045000.046000.0
Percentage of PreferredStockDividendsAndOtherAdjustments100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ProceedsFromCollectionOfLoansReceivable

us-gaap:ProceedsFromCollectionOfLoansReceivable


Proceeds
Period End2020-10-312015-12-312015-09-302014-12-312014-09-302013-12-312013-09-30
Value557.4830.00.00.00.00.0
Percentage of ProceedsFromCollectionOfLoansReceivable100.0100.00.00.00.00.00.0

us-gaap:ProceedsFromCollectionOfLoansReceivable us-gaap:SubsequentEventType

us-gaap:SubsequentEvent


Proceeds
Period End2020-10-31
Value55
Percentage of ProceedsFromCollectionOfLoansReceivable100.0

us-gaap:ProceedsFromLinesOfCredit

us-gaap:ProceedsFromLinesOfCredit


Proceeds
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302010-12-312010-09-30
Value1592052461991611295261297209180212424223234190495286191252550.067931762771721891661171432442049763267216916423979-7.031
Percentage of ProceedsFromLinesOfCredit100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ProceedsFromLinesOfCredit dei:LegalEntity

acc:AmericanCampusCommunitiesOperatingPartnershipLimitedPartnership


Proceeds
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-30
Value2461991611295261297209180212424223234190495286191252550.067931762771721891661171432442049763267216916423979
Percentage of ProceedsFromLinesOfCredit100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ProceedsFromMinorityShareholders

us-gaap:ProceedsFromMinorityShareholders


Proceeds
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-31
Value0.05.4140.00.00.00.470.0790.625-0.515.4963730.8540.2753.3680.08.1580.00.00.00.0
Percentage of ProceedsFromMinorityShareholders0.0100.00.00.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.00.00.00.00.0

us-gaap:ProceedsFromMinorityShareholders dei:LegalEntity

acc:AmericanCampusCommunitiesOperatingPartnershipLimitedPartnership


Proceeds
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-31
Value0.05.4140.00.00.00.470.0790.625-0.515.4963730.8540.2753.3680.08.1580.00.00.00.0
Percentage of ProceedsFromMinorityShareholders0.0100.00.00.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.00.00.00.00.0

us-gaap:ProceedsFromSaleOfRealEstateHeldforinvestment

us-gaap:ProceedsFromSaleOfRealEstateHeldforinvestment


Proceeds
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value0.00.00.0146990.08.8540.00.00.00.00.0240.04980.00.027720.0311692261.2875.9850.01.327251550.00.0150.0-0.007-0.5800.0-0.0010.01.0171.098
Percentage of ProceedsFromSaleOfRealEstateHeldforinvestment0.00.00.0100.0100.00.0100.00.00.00.00.00.0100.00.0100.00.0100.0100.00.0100.0100.0100.0100.0100.00.0100.0100.0100.00.00.0100.00.0100.0100.0100.00.0100.00.0100.0100.0

us-gaap:ProceedsFromSaleOfRealEstateHeldforinvestment dei:LegalEntity

acc:AmericanCampusCommunitiesOperatingPartnershipLimitedPartnership


Proceeds
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302011-12-312011-09-30
Value0.00.00.0146990.08.8540.00.00.00.00.0240.04980.00.027720.0311692261.2875.9850.01.327251550.00.0150.0-0.007-0.5
Percentage of ProceedsFromSaleOfRealEstateHeldforinvestment0.00.00.0100.0100.00.0100.00.00.00.00.00.0100.00.0100.00.0100.0100.00.0100.0100.0100.0100.0100.00.0100.0100.0100.00.00.0100.00.0100.0100.0

us-gaap:ProceedsFromUnsecuredNotesPayable

us-gaap:ProceedsFromUnsecuredNotesPayable


Proceeds
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302016-12-312015-12-312015-09-302014-12-312014-09-302013-09-30
Value0.00.03963990.00.03980.00.00.00.00.03990.00.00.0
Percentage of ProceedsFromUnsecuredNotesPayable0.00.0100.0100.00.00.0100.00.00.00.00.00.0100.00.00.00.0

us-gaap:ProceedsFromUnsecuredNotesPayable dei:LegalEntity

acc:AmericanCampusCommunitiesOperatingPartnershipLimitedPartnership


Proceeds
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302016-12-312015-12-312015-09-302014-12-312014-09-302013-09-30
Value0.00.03963990.00.03980.00.00.00.00.03990.00.00.0
Percentage of ProceedsFromUnsecuredNotesPayable0.00.0100.0100.00.00.0100.00.00.00.00.00.0100.00.00.00.0

us-gaap:RepaymentsOfLinesOfCredit

us-gaap:RepaymentsOfLinesOfCredit


Repayments
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302010-12-31
Value101113152109584111118713148111092208390144329371330105173350.01362540518028285115389222761353210.02272510.01870.0250.0
Percentage of RepaymentsOfLinesOfCredit100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.00.0100.00.0100.00.0

us-gaap:RepaymentsOfLinesOfCredit dei:LegalEntity

acc:AmericanCampusCommunitiesOperatingPartnershipLimitedPartnership


Repayments
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-30
Value152109584111118713148111092208390144329371330105173350.01362540518028285115389222761353210.02272510.01870.025
Percentage of RepaymentsOfLinesOfCredit100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.00.0100.00.0100.0

us-gaap:RepaymentsOfSecuredDebt

us-gaap:RepaymentsOfSecuredDebt


Repayments
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value3.21710900.00.03438111.9772.041.9765.4722.0082.2483.1243.2243.1713.3233.6063.7433.8543.9173.7333.5013.3753.8413.8973.943.9574.2213.973.9493.1524.2523.5112.7342.6642.6662.6372.5422.5131.9113.1312.1233.2913.555
Percentage of RepaymentsOfSecuredDebt100.0100.0100.00.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:RepaymentsOfSecuredDebt dei:LegalEntity

acc:AmericanCampusCommunitiesOperatingPartnershipLimitedPartnership


Repayments
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-31
Value900.00.03438111.9772.041.9765.4722.0082.2483.1243.2243.1713.3233.6063.7433.8543.9173.7333.5013.3753.8413.8973.943.9574.2213.973.9493.1524.2523.5112.7342.6642.6662.6372.5422.5131.911
Percentage of RepaymentsOfSecuredDebt100.00.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:RepaymentsOfSecuredDebt us-gaap:LongtermDebtType

us-gaap:Mortgages


Repayments
Period End2021-05-312021-03-312020-02-292020-03-312015-09-302015-06-302015-03-31
Value3.21034340.01819
Percentage of RepaymentsOfSecuredDebt0.0100.099.90.00.0536.3502.5

us-gaap:RepaymentsOfSecuredDebt us-gaap:LongtermDebtType, us-gaap:SubsequentEventType

us-gaap:Mortgages, us-gaap:SubsequentEvent


Repayments
Period End2021-07-31
Value37
Percentage of RepaymentsOfSecuredDebt0.0

us-gaap:RepaymentsOfUnsecuredDebt

us-gaap:RepaymentsOfUnsecuredDebt


Repayments
Period End2020-09-302020-06-302020-03-312019-06-302019-03-312018-12-312018-09-302017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-31
Value0.00.04000.00.00.00.00.00.00.00.02000.00.04000.00.00.00.0
Percentage of RepaymentsOfUnsecuredDebt0.00.0100.00.00.00.00.00.00.00.00.0100.00.00.0100.00.00.00.00.0

us-gaap:RepaymentsOfUnsecuredDebt dei:LegalEntity

acc:AmericanCampusCommunitiesOperatingPartnershipLimitedPartnership


Repayments
Period End2020-09-302020-06-302020-03-312019-06-302019-03-312018-12-312018-09-302017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-31
Value0.00.04000.00.00.00.00.00.00.00.02000.00.04000.00.00.00.0
Percentage of RepaymentsOfUnsecuredDebt0.00.0100.00.00.00.00.00.00.00.00.0100.00.00.0100.00.00.00.00.0

us-gaap:SaleOfStockConsiderationReceivedOnTransaction us-gaap:SubsequentEventType, us-gaap:SubsidiarySaleOfStock

us-gaap:SaleOfStockConsiderationReceivedOnTransaction

us-gaap:SubsequentEvent, acc:ATMEquityProgram


Sale
Period End2021-08-05
Value20
Percentage of SaleOfStockConsiderationReceivedOnTransaction100.0

us-gaap:SaleOfStockConsiderationReceivedOnTransaction us-gaap:SubsidiarySaleOfStock

acc:ATMEquityProgram


Sale
Period End2021-06-30
Value37
Percentage of SaleOfStockConsiderationReceivedOnTransaction0.0

us-gaap:SaleOfStockNumberOfSharesIssuedInTransaction us-gaap:SubsequentEventType, us-gaap:SubsidiarySaleOfStock

us-gaap:SaleOfStockNumberOfSharesIssuedInTransaction

us-gaap:SubsequentEvent, acc:ATMEquityProgram


Sale
Period End2021-08-05
Value428000.0
Percentage of SaleOfStockNumberOfSharesIssuedInTransaction100.0

us-gaap:StockIssuedDuringPeriodValueRestrictedStockAwardGross

us-gaap:StockIssuedDuringPeriodValueRestrictedStockAwardGross


Stock
Period End2021-03-312020-06-302020-03-312019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value-4469000.0-20000.0-4155000.0-144000.0-3831000.001000.00-2757000.0049000.074000.0-4283000.0
Percentage of StockIssuedDuringPeriodValueRestrictedStockAwardGross100.0100.0100.0100.0100.00.0100.00.0100.00.0100.0100.0100.0

us-gaap:StockIssuedDuringPeriodValueRestrictedStockAwardGross us-gaap:StatementEquityComponents

us-gaap:AdditionalPaidInCapital


Stock
Period End2021-03-312020-06-302020-03-312019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value-4472000.0-20000.0-4157000.0-146000.0-3831000.0000-2758000.001305000.0538000.0-4036000.0
Percentage of StockIssuedDuringPeriodValueRestrictedStockAwardGross100.1100.0100.0101.4100.00.00.00.0100.00.02663.3727.094.2

us-gaap:CommonStock


Stock
Period End2021-03-312020-03-312019-06-302018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value3000.02000.02000.001000.001000.0001000.01000.0
Percentage of StockIssuedDuringPeriodValueRestrictedStockAwardGross-0.1-0.0-1.40.0100.00.0-0.00.00.01.4-0.0

us-gaap:UndistributedEarningsLossAllocatedToParticipatingSecuritiesBasic

us-gaap:UndistributedEarningsLossAllocatedToParticipatingSecuritiesBasic


Undistributed
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value571000.0734000.0444000.0517000.0519000.0662000.0413000.0458000.0458000.0573000.0231000.0408000.0377000.0506000.0319000.0360000.0389000.0468000.0
Percentage of UndistributedEarningsLossAllocatedToParticipatingSecuritiesBasic100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:WeightedAverageLimitedPartnershipUnitsOutstanding dei:LegalEntity

us-gaap:WeightedAverageLimitedPartnershipUnitsOutstanding

acc:AmericanCampusCommunitiesOperatingPartnershipLimitedPartnership


Weighted
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-30
Value0.0144791381381370.0155981371371370.0133371371371370.4291371351340.9428061321311240.1283751131131120.1189991061061060.0315571051051055.3716749075750.68715270
Percentage of WeightedAverageLimitedPartnershipUnitsOutstanding100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:WeightedAverageLimitedPartnershipUnitsOutstandingDiluted dei:LegalEntity

us-gaap:WeightedAverageLimitedPartnershipUnitsOutstandingDiluted

acc:AmericanCampusCommunitiesOperatingPartnershipLimitedPartnership


Weighted
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-30
Value0.0317171381381390.0077631381381380.0016271371381380.4124731371351350.937681321321250.1203581141141120.0958531061061060.0253041051061065.3644019076750.68233971
Percentage of WeightedAverageLimitedPartnershipUnitsOutstandingDiluted100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:WeightedAverageNumberDilutedSharesOutstandingAdjustment us-gaap:AwardType

us-gaap:WeightedAverageNumberDilutedSharesOutstandingAdjustment

us-gaap:RestrictedStock


Weighted
Period End2021-03-312020-06-302020-03-312019-09-302019-06-302019-03-312018-09-30
Value1296700.001110300.0971680.0974690.01050800.00
Percentage of WeightedAverageNumberDilutedSharesOutstandingAdjustment100.00.0100.0100.0100.0100.00.0

us-gaap:WeightedAverageNumerDilutedLimitedPartnershipUnitsOutstandingAdjustment dei:LegalEntity, us-gaap:AwardType

us-gaap:WeightedAverageNumerDilutedLimitedPartnershipUnitsOutstandingAdjustment

acc:AmericanCampusCommunitiesOperatingPartnershipLimitedPartnership, us-gaap:RestrictedStock


Weighted
Period End2020-09-302020-06-302020-03-312019-09-302019-06-302019-03-31
Value-2513.001110300.0971680.0974690.01050800.0
Percentage of WeightedAverageNumerDilutedLimitedPartnershipUnitsOutstandingAdjustment100.00.0100.0100.0100.0100.0

acc:DebtInstrumentAmountRefinanced us-gaap:LongtermDebtType

acc:DebtInstrumentAmountRefinanced

us-gaap:Mortgages


Debt
Period End2021-02-28
Value24
Percentage of DebtInstrumentAmountRefinanced100.0

acc:DebtInstrumentAmountRefinanced us-gaap:LongtermDebtType, us-gaap:SubsequentEventType

us-gaap:Mortgages, us-gaap:SubsequentEvent


Debt
Period End2021-02-26
Value24
Percentage of DebtInstrumentAmountRefinanced0.0

acc:DeferredTaxAssetsOperatingLease us-gaap:ConsolidatedEntities

acc:DeferredTaxAssetsOperatingLease

srt:Subsidiaries


Deferred
Period End2020-12-312019-12-31
Value3314000.03480000.0
Percentage of DeferredTaxAssetsOperatingLease100.0100.0

acc:DeferredTaxAssetsPropertyPlantAndEquipmentAndIntangibleAssets us-gaap:ConsolidatedEntities

acc:DeferredTaxAssetsPropertyPlantAndEquipmentAndIntangibleAssets

srt:Subsidiaries


Deferred
Period End2020-12-312019-12-312018-12-312017-12-31
Value1669000.01488000.0365000.0750000.0
Percentage of DeferredTaxAssetsPropertyPlantAndEquipmentAndIntangibleAssets100.0100.0100.0100.0

acc:DeferredTaxLiabilityOperatingLease us-gaap:ConsolidatedEntities

acc:DeferredTaxLiabilityOperatingLease

srt:Subsidiaries


Deferred
Period End2020-12-312019-12-31
Value3189000.03413000.0
Percentage of DeferredTaxLiabilityOperatingLease100.0100.0

acc:GuaranteeObligationsMaximumExposureOwnerCausedDelays us-gaap:GuaranteeObligationsByNature

acc:GuaranteeObligationsMaximumExposureOwnerCausedDelays

acc:ThirdPartyDevelopmentProjects


Guarantee
Period End2021-06-302021-03-312020-12-312020-09-30
Value9400000.09400000.08000000.08000000.0
Percentage of GuaranteeObligationsMaximumExposureOwnerCausedDelays100.0100.0100.0100.0

acc:LoansReceivableUnamortizedDiscount

acc:LoansReceivableUnamortizedDiscount


Loans
Period End2020-10-312019-12-312018-12-312017-12-312016-12-312015-12-31
Value2100000.02300000.02400000.02600000.02800000.03000000.0
Percentage of LoansReceivableUnamortizedDiscount100.0100.0100.0100.0100.0100.0

acc:LongTermDebtExcludingUnamortizedDebtPremiumsAndDiscount acc:LongTermDebtMaturitiesRepaymentsOfPrincipal

acc:LongTermDebtExcludingUnamortizedDebtPremiumsAndDiscount

acc:ScheduledPrincipal


Long
Period End2020-12-312013-12-312012-12-31
Value3617117130
Percentage of LongTermDebtExcludingUnamortizedDebtPremiumsAndDiscount100.0100.0100.0

acc:NumberOfAvailableBeds

acc:NumberOfAvailableBeds


Number
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-08-312017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312012-12-312011-12-312010-12-31
Value111900.0111900.0111900.0111900.0111900.0111900.0112800.0113400.0108800.0109400.0109100.0103500.0103500.0104800.0104100.0102500.01178.099000.097500.095200.0105300.0103200.0100600.099400.096300.096400.0100000.0103700.0102200.0102700.0102600.04079.01584.03403.01883.0
Percentage of NumberOfAvailableBeds100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

acc:RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovementsAndFurnitureFixturesAndEquipment

acc:RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovementsAndFurnitureFixturesAndEquipment


Real
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-31
Value7889765273226998590959185709529648272814
Percentage of RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovementsAndFurnitureFixturesAndEquipment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

acc:RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovementsAndFurnitureFixturesAndEquipment

acc:RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovementsAndFurnitureFixturesAndEquipment


Real
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-31
Value7333714566526612556255665416507846632680
Percentage of RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovementsAndFurnitureFixturesAndEquipment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

acc:SaleOfStockRemainingAmountAvailableForIssuance us-gaap:SubsidiarySaleOfStock

acc:SaleOfStockRemainingAmountAvailableForIssuance

acc:ATMEquityProgram


Sale
Period End2021-06-30
Value461
Percentage of SaleOfStockRemainingAmountAvailableForIssuance100.0

acc:TermLoanCreditFacilityAccordionFeature us-gaap:CreditFacility, us-gaap:LongtermDebtType

acc:TermLoanCreditFacilityAccordionFeature

acc:TermLoans, us-gaap:UnsecuredDebt


Term
Period End2020-09-30
Value100
Percentage of TermLoanCreditFacilityAccordionFeature100.0

acc:UnsecuredNotesFairValueDisclosure us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementBasis

acc:UnsecuredNotesFairValueDisclosure

us-gaap:FairValueInputsLevel2, us-gaap:EstimateOfFairValueFairValueDisclosure


Unsecured
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302018-12-31
Value2560255226092533243119772069207420351566
Percentage of UnsecuredNotesFairValueDisclosure100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

acc:UnsecuredNotesFairValueDisclosure us-gaap:FairValueByMeasurementBasis

us-gaap:CarryingReportedAmountFairValueDisclosure


Unsecured
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-30
Value237723762375237423731981198519841983158915881587158715861585119011891189118811881187118711971197798798798798798398398398398
Percentage of UnsecuredNotesFairValueDisclosure92.893.191.093.797.6100.295.995.797.50.0101.40.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

dei:EntityCommonStockSharesOutstanding

dei:EntityCommonStockSharesOutstanding


Entity
Period End2021-02-19
Value137
Percentage of EntityCommonStockSharesOutstanding100.0

srt:RealEstateAndAccumulatedDepreciationAmountOfEncumbrances

srt:RealEstateAndAccumulatedDepreciationAmountOfEncumbrances


Real
Period End2020-12-312019-12-312018-12-31
Value646782844
Percentage of RealEstateAndAccumulatedDepreciationAmountOfEncumbrances100.0100.0100.0

srt:RealEstateFederalIncomeTaxBasis

srt:RealEstateFederalIncomeTaxBasis


Real
Period End2020-12-31
Value9000
Percentage of RealEstateFederalIncomeTaxBasis100.0

us-gaap:AccountsPayableAndAccruedLiabilitiesCurrentAndNoncurrent

us-gaap:AccountsPayableAndAccruedLiabilitiesCurrentAndNoncurrent


Accounts
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value6958858772538886675888866652537962487677614971816851707358496563494456573829363730253426
Percentage of AccountsPayableAndAccruedLiabilitiesCurrentAndNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AccountsPayableAndAccruedLiabilitiesCurrentAndNoncurrent dei:LegalEntity

acc:AmericanCampusCommunitiesOperatingPartnershipLimitedPartnership


Accounts
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-31
Value85877253888667588886665253796248767761497181685170735849656349445657382936
Percentage of AccountsPayableAndAccruedLiabilitiesCurrentAndNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AccountsReceivableNet

us-gaap:AccountsReceivableNet


Accounts
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value9.7751311229.1941213279.446148.565457.8279.7269.17157.4477.7818.428167.1177.02418248.0527.94210148.9478.0049.238178.3236.475149.4833.9083.1455.3247.2963.6164.1395.7365.381
Percentage of AccountsReceivableNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AccountsReceivableNet dei:LegalEntity

acc:AmericanCampusCommunitiesOperatingPartnershipLimitedPartnership


Accounts
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-31
Value11229.1941213279.446148.565457.8279.7269.17157.4477.7818.428167.1177.02418248.0527.94210148.9478.0049.238178.3236.475149.4833.9083.1455.324
Percentage of AccountsReceivableNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:BuildingsAndImprovementsGross us-gaap:RealEstateProperties

us-gaap:BuildingsAndImprovementsGross

acc:OnCampusParticipatingProperties


Buildings
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312018-12-31
Value157157157157156156155150
Percentage of BuildingsAndImprovementsGross100.0100.0100.0100.0100.0100.0100.0100.0

acc:OwnedProperties


Buildings
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302018-12-31
Value710370116949693467056646674968436486
Percentage of BuildingsAndImprovementsGross4504.64457.34420.54414.84282.54251.14328.40.04321.6

us-gaap:CommonStockHeldInTrust

us-gaap:CommonStockHeldInTrust


Common
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302018-12-31
Value4730000.04326000.03951000.03951000.03951000.03615000.03486000.03486000.03092000.0
Percentage of CommonStockHeldInTrust100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:CommonStockValueOutstanding

us-gaap:CommonStockValueOutstanding


Common
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302011-12-31
Value1386000.01378000.01375000.01375000.01375000.01375000.01373000.01373000.01372000.01370000.01370000.01370000.01366000.01366000.01364000.01364000.01363000.01336000.01322000.01319000.01304000.01304000.01124000.01123000.01123000.01123000.01072000.01044000.01043000.01043000.01043000.01043000.01043000.01043000.01043000.0917000.0725000.0
Percentage of CommonStockValueOutstanding100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DebtInstrumentCarryingAmount

us-gaap:DebtInstrumentCarryingAmount


Debt
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-31
Value62775981761863110131232139213778061084
Percentage of DebtInstrumentCarryingAmount100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DebtInstrumentCarryingAmount us-gaap:DebtInstrument, us-gaap:LongtermDebtType

acc:BondsPayableSeries1999, acc:BondsPayable


Debt
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-31
Value9.381214161921222426
Percentage of DebtInstrumentCarryingAmount1.51.61.82.73.02.11.91.81.9

acc:BondsPayableSeries2001, acc:BondsPayable


Debt
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-31
Value7.668.88510111212131415
Percentage of DebtInstrumentCarryingAmount1.21.21.21.81.91.31.11.11.1

acc:BondsPayableSeries2003, acc:BondsPayable


Debt
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-31
Value2.072.2652.452.6252.792.9453.093.233.365
Percentage of DebtInstrumentCarryingAmount0.30.30.30.40.40.30.30.20.2

acc:FixedRateDebt, us-gaap:Mortgages


Debt
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-31
Value6257566835666311008112413311320776984
Percentage of DebtInstrumentCarryingAmount99.799.683.691.6100.099.591.395.795.896.490.8

acc:VariableRateDebt, us-gaap:Mortgages


Debt
Period End2020-12-312019-12-31
Value2.0843.129
Percentage of DebtInstrumentCarryingAmount0.30.4

us-gaap:DebtInstrumentCarryingAmount us-gaap:DebtInstrument, us-gaap:LongtermDebtType, us-gaap:RealEstateProperties

acc:VariableRateMortgageLoans, us-gaap:Mortgages, acc:OwnedProperties


Debt
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302018-12-31
Value1.51.82.12.42.62.93.140111
Percentage of DebtInstrumentCarryingAmount0.00.00.30.00.00.00.40.013.6

us-gaap:DebtInstrumentCarryingAmount us-gaap:LongtermDebtType

acc:BondsPayable


Debt
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-31
Value192327303336394244
Percentage of DebtInstrumentCarryingAmount3.03.13.34.95.43.63.23.03.3

us-gaap:DebtInstrumentCarryingAmount us-gaap:LongtermDebtType, us-gaap:RealEstateProperties

us-gaap:Bonds, acc:OnCampusParticipatingProperties


Debt
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-31
Value19191919232323232727272730303033
Percentage of DebtInstrumentCarryingAmount0.00.03.00.00.00.03.10.00.00.03.30.00.00.04.95.4

us-gaap:Mortgages, acc:OnCampusParticipatingProperties


Debt
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-31
Value62636364646565666667676868696971
Percentage of DebtInstrumentCarryingAmount0.00.010.20.00.00.08.70.00.00.08.30.00.00.011.311.4

us-gaap:Mortgages, acc:OwnedProperties


Debt
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302018-12-31
Value548552563655656657693695727
Percentage of DebtInstrumentCarryingAmount0.00.089.80.00.00.091.30.089.0

us-gaap:DebtInstrumentFaceAmount dei:LegalEntity, us-gaap:LongtermDebtType

us-gaap:DebtInstrumentFaceAmount

acc:AmericanCampusCommunitiesOperatingPartnershipLimitedPartnership, us-gaap:SeniorNotes


Debt
Period End2020-12-312020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302013-04-30
Value240024002000200020002000160016001600160016001600120012001200120012001200120012001200400
Percentage of DebtInstrumentFaceAmount100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DebtInstrumentFaceAmount us-gaap:LongtermDebtType

acc:SeniorNotesJanuary2020


Debt
Period End2020-12-31
Value400
Percentage of DebtInstrumentFaceAmount16.7

acc:SeniorNotesJune2014


Debt
Period End2020-12-31
Value400
Percentage of DebtInstrumentFaceAmount16.7

acc:SeniorNotesJune2019


Debt
Period End2020-12-31
Value400
Percentage of DebtInstrumentFaceAmount16.7

acc:SeniorNotesJune2020


Debt
Period End2020-12-31
Value400
Percentage of DebtInstrumentFaceAmount16.7

acc:SeniorNotesOctober2017


Debt
Period End2020-12-31
Value400
Percentage of DebtInstrumentFaceAmount16.7

us-gaap:DebtInstrumentFairValue us-gaa