ACHC


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

Table of contents



us-gaap:CommonStockValue

us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding

us-gaap:WeightedAverageNumberOfSharesOutstandingBasic

us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount

us-gaap:EarningsPerShareBasic

us-gaap:EarningsPerShareDiluted

us-gaap:IncomeLossFromContinuingOperationsPerBasicShare

us-gaap:IncomeLossFromContinuingOperationsPerDilutedShare

us-gaap:ComprehensiveIncomeNetOfTax

us-gaap:ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest

us-gaap:ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest

us-gaap:CostsAndExpenses

us-gaap:GainsLossesOnExtinguishmentOfDebt
us-gaap:DebtInstrument
us-gaap:DebtInstrument, us-gaap:LongtermDebtType
us-gaap:DebtInstrumentRedemptionPeriod
us-gaap:LongtermDebtType

us-gaap:IncomeLossFromContinuingOperations

us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest
us-gaap:ConsolidatedEntities

us-gaap:IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest

us-gaap:IncomeTaxExpenseBenefit

us-gaap:InterestIncomeExpenseNet

us-gaap:NetIncomeLoss
us-gaap:ConsolidatedEntities
us-gaap:StatementEquityComponents

us-gaap:NetIncomeLossAttributableToNoncontrollingInterest

us-gaap:OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax
us-gaap:StatementEquityComponents

us-gaap:OtherComprehensiveIncomeLossNetOfTax
us-gaap:StatementEquityComponents

us-gaap:ProfitLoss
us-gaap:ConsolidatedEntities

us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax
us-gaap:ConsolidatedEntities
us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments
us-gaap:MajorCustomers, us-gaap:StatementBusinessSegments
us-gaap:ProductOrService, us-gaap:StatementBusinessSegments
us-gaap:StatementBusinessSegments

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

us-gaap:Liabilities
us-gaap:ConsolidatedEntities

us-gaap:LiabilitiesAndStockholdersEquity

us-gaap:StockholdersEquity
us-gaap:ConsolidatedEntities
us-gaap:StatementEquityComponents

us-gaap:AssetsCurrent
us-gaap:ConsolidatedEntities

us-gaap:CashAndCashEquivalentsAtCarryingValue
us-gaap:ConsolidatedEntities

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents

us-gaap:AccountsReceivableNetCurrent
us-gaap:ConsolidatedEntities

us-gaap:InventoryNet

us-gaap:OtherAssetsCurrent
us-gaap:ConsolidatedEntities
us-gaap:ConsolidatedEntities
us-gaap:AssetsNoncurrent

us-gaap:PropertyPlantAndEquipmentGross
us-gaap:PropertyPlantAndEquipmentByType

us-gaap:AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment

us-gaap:PropertyPlantAndEquipmentNet
us-gaap:ConsolidatedEntities
us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments

us-gaap:Goodwill
us-gaap:ConsolidatedEntities
us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments

us-gaap:IndefiniteLivedIntangibleAssetsExcludingGoodwill
us-gaap:IndefiniteLivedIntangibleAssetsByMajorClass

us-gaap:IntangibleAssetsNetExcludingGoodwill

us-gaap:OperatingLeaseRightOfUseAsset
us-gaap:BalanceSheetLocation
us-gaap:ConsolidatedEntities

us-gaap:OtherAssetsNoncurrent

us-gaap:AccountsPayableCurrent
us-gaap:ConsolidatedEntities

us-gaap:LiabilitiesCurrent
us-gaap:ConsolidatedEntities

us-gaap:LongTermDebtCurrent

us-gaap:OperatingLeaseLiabilityCurrent
us-gaap:BalanceSheetLocation
us-gaap:ConsolidatedEntities

us-gaap:OtherAccruedLiabilitiesCurrent
us-gaap:ConsolidatedEntities

us-gaap:OtherLiabilitiesCurrent

us-gaap:TaxesPayableCurrent
us-gaap:ConsolidatedEntities
us-gaap:LiabilitiesNoncurrent

us-gaap:LongTermDebt

us-gaap:LongTermDebtNoncurrent
us-gaap:ConsolidatedEntities

us-gaap:DeferredIncomeTaxLiabilitiesNet

us-gaap:OtherLiabilitiesNoncurrent

us-gaap:OperatingLeaseLiabilityNoncurrent
us-gaap:BalanceSheetLocation
us-gaap:ConsolidatedEntities

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearTwo

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearThree

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFour

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFive

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive

us-gaap:OperatingLeaseLiability

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDue

us-gaap:LesseeOperatingLeaseLiabilityUndiscountedExcessAmount

us-gaap:StockholdersEquity
us-gaap:ConsolidatedEntities
us-gaap:StatementEquityComponents

us-gaap:CommonStockValue

us-gaap:AdditionalPaidInCapitalCommonStock

us-gaap:RetainedEarningsAccumulatedDeficit

us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax

us-gaap:AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue
us-gaap:StatementEquityComponents

us-gaap:NetCashProvidedByUsedInOperatingActivities

us-gaap:NetCashProvidedByUsedInInvestingActivities

us-gaap:NetCashProvidedByUsedInFinancingActivities

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect

us-gaap:AmortizationOfFinancingCosts

us-gaap:DeferredIncomeTaxExpenseBenefit
us-gaap:AwardType

us-gaap:IncreaseDecreaseInAccountsReceivable

us-gaap:NetCashProvidedByUsedInOperatingActivities

us-gaap:NetIncomeLoss
us-gaap:ConsolidatedEntities
us-gaap:StatementEquityComponents

us-gaap:ProfitLoss
us-gaap:ConsolidatedEntities

us-gaap:ShareBasedCompensation

us-gaap:NetCashProvidedByUsedInInvestingActivities

us-gaap:PaymentsToAcquirePropertyPlantAndEquipment

us-gaap:NetCashProvidedByUsedInFinancingActivities

us-gaap:ProceedsFromIssuanceOfLongTermDebt
us-gaap:CreditFacility
us-gaap:RepaymentsOfLongTermDebt
us-gaap:CreditFacility, us-gaap:DisposalGroupClassification, us-gaap:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations, us-gaap:SubsequentEventType
us-gaap:DebtInstrument
us-gaap:DebtInstrument, us-gaap:DisposalGroupClassification, us-gaap:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations, us-gaap:SubsequentEventType
us-gaap:DebtInstrument
us-gaap:DebtInstrumentInterestRateStatedPercentage
us-gaap:DebtInstrumentRedemptionPeriod

us-gaap:EffectiveIncomeTaxRateContinuingOperations

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice

us-gaap:DeferredTaxLiabilities

us-gaap:DeferredTaxAssetsNet

us-gaap:UnrecognizedTaxBenefits
us-gaap:BalanceSheetLocation

us-gaap:DeferredTaxAssetsValuationAllowance
us-gaap:LoansInsuredOrGuaranteedByGovernmentAuthorities, us-gaap:UnusualOrInfrequentItem
achc:AdditionalReliefReceived
us-gaap:UnusualOrInfrequentItem
achc:CashBenefitRelatingToDelayOfPaymentOfSocialSecurityPayrollTaxes
us-gaap:DebtInstrumentRedemptionPeriod, us-gaap:SubsequentEventType
achc:CashFromBalanceSheetToRepaySeniorNotes

achc:CashPaidForRealEstateAcquisitions
us-gaap:DisposalGroupClassification, us-gaap:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations, us-gaap:SubsequentEventType
achc:CashToBalanceSheetAfterTermLoanRepayments

achc:CommonStockWithheldForMinimumStatutoryTaxes
us-gaap:StatementEquityComponents

achc:CommonStockWithheldForMinimumStatutoryTaxesNet
us-gaap:MajorCustomers, us-gaap:TypeOfArrangement, us-gaap:UnusualOrInfrequentItem
achc:ContractWithCustomerLiabilityAdvanceRepayments
us-gaap:MajorCustomers, us-gaap:UnusualOrInfrequentItem
us-gaap:FairValueByLiabilityClass
achc:ContractWithCustomerLiabilityPaymentsReceived
us-gaap:FairValueByLiabilityClass, us-gaap:StatementBusinessSegments
us-gaap:DebtInstrumentRedemptionPeriod, us-gaap:SubsequentEventType
achc:DebtInstrumentTransactionCosts
us-gaap:DisposalGroupClassification, us-gaap:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations
achc:DisposalGroupIncludingDiscontinuedOperationInterestExpenseNet
us-gaap:DisposalGroupClassification, us-gaap:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations
achc:DisposalGroupIncludingDiscontinuedOperationProfessionalFees
us-gaap:DisposalGroupClassification, us-gaap:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations
achc:DisposalGroupIncludingDiscontinuedOperationRentsAndLeases
us-gaap:DisposalGroupClassification, us-gaap:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations
achc:DisposalGroupIncludingDiscontinuedOperationSalariesWagesAndBenefits
us-gaap:DisposalGroupClassification, us-gaap:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations
achc:DisposalGroupIncludingDiscontinuedOperationSupplies
us-gaap:DisposalGroupClassification, us-gaap:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations
achc:DisposalGroupIncludingDiscontinuedOperationTransactionRelatedExpenses
us-gaap:DisposalGroupClassification, us-gaap:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations, us-gaap:SubsequentEventType
achc:DivestitureCashRetainedByBuyer

achc:FinanceLeaseCost

achc:LegalAccountingAndOtherAcquisitionRelatedCosts

achc:NetIncreaseDecreaseInCashAndCashEquivalentsIncludingCashClassifiedWithinCurrentAssetsHeldForSaleIncludingExchangeRateEffect
us-gaap:DisposalGroupClassification, us-gaap:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations, us-gaap:SubsequentEventType
achc:NetProceedsFromDivestitureOfBusinessesAfterDeductingCashRetainedByBuyer
us-gaap:DisposalGroupClassification, us-gaap:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations
achc:NetProceedsFromDivestitureOfBusinessesBeforeCashRetainedByBuyer
us-gaap:DisposalGroupClassification, us-gaap:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations, us-gaap:SubsequentEventType

achc:OtherComprehensiveIncomeLossDiscontinuedOperationGainLossFromDisposalOfDiscontinuedOperationNetOfTax
us-gaap:StatementEquityComponents

achc:OtherLeaseCost
us-gaap:DebtInstrumentRedemptionPeriod
achc:PaymentOfDebtBreakageCosts
us-gaap:DebtInstrumentRedemptionPeriod, us-gaap:SubsequentEventType
us-gaap:MajorCustomers, us-gaap:StatementBusinessSegments
achc:PercentageOfHealthCareOrganizationRevenue
us-gaap:SubsequentEventType
achc:PurchaseOfLeasedProperty

achc:RedeemableNoncontrollingInterestResultingFromAnAcquisition
us-gaap:UnusualOrInfrequentItem
achc:ReversalOfIncomeRecordedUnderCARESAct

achc:SegmentEBITDA
us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments

achc:ShareBasedCompensationArrangementByShareBasedPaymentAward
us-gaap:AwardType
achc:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsPerformanceAdjustmentWeightedAverageGrantDateFairValue

achc:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodIntrinsicValue
us-gaap:DisposalGroupClassification, us-gaap:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations, us-gaap:SubsequentEventType
achc:TransactionCostsRelatedToSaleOfBusiness

us-gaap:AdjustmentsToAdditionalPaidInCapitalOther
us-gaap:StatementEquityComponents

us-gaap:AssetImpairmentCharges

us-gaap:BusinessCombinationAcquisitionRelatedCosts

us-gaap:BusinessExitCosts1

us-gaap:CashProvidedByUsedInOperatingActivitiesDiscontinuedOperations
us-gaap:FairValueByLiabilityClass
us-gaap:ContractWithCustomerLiabilityRevenueRecognized
us-gaap:FairValueByLiabilityClass, us-gaap:StatementBusinessSegments
us-gaap:DebtInstrument, us-gaap:LongtermDebtType
us-gaap:DebtInstrumentPeriodicPayment
us-gaap:DebtInstrument, us-gaap:DebtInstrumentRedemptionPeriod
us-gaap:DebtInstrumentPeriodicPaymentPrincipal

us-gaap:DepreciationAndAmortization
us-gaap:DisposalGroupClassification, us-gaap:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations
us-gaap:DiscontinuedOperationGainLossFromDisposalOfDiscontinuedOperationBeforeIncomeTax
us-gaap:DisposalGroupClassification, us-gaap:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations
us-gaap:DiscontinuedOperationGainLossOnDisposalOfDiscontinuedOperationNetOfTax
us-gaap:DisposalGroupClassification, us-gaap:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations
us-gaap:DiscontinuedOperationIncomeLossFromDiscontinuedOperationBeforeIncomeTax
us-gaap:DisposalGroupClassification, us-gaap:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations
us-gaap:DiscontinuedOperationTaxEffectOfDiscontinuedOperation
us-gaap:DisposalGroupClassification, us-gaap:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations
us-gaap:DisposalGroupIncludingDiscontinuedOperationOperatingExpense
us-gaap:DisposalGroupClassification, us-gaap:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations
us-gaap:DisposalGroupIncludingDiscontinuedOperationOtherExpense
us-gaap:DisposalGroupClassification, us-gaap:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations
us-gaap:DisposalGroupIncludingDiscontinuedOperationRevenue

us-gaap:EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations
us-gaap:DebtInstrument
us-gaap:ExtinguishmentOfDebtAmount
us-gaap:DebtInstrument, us-gaap:SubsequentEventType

us-gaap:FairValueOfAssetsAcquired

us-gaap:FinanceLeaseInterestExpense

us-gaap:FinanceLeaseInterestPaymentOnLiability

us-gaap:FinanceLeasePrincipalPayments

us-gaap:FinanceLeaseRightOfUseAssetAmortization

us-gaap:GainLossOnDispositionOfIntangibleAssets

us-gaap:GoodwillForeignCurrencyTranslationGainLoss
us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments

us-gaap:GoodwillWrittenOffRelatedToSaleOfBusinessUnit
us-gaap:StatementBusinessSegments, us-gaap:Subsegments
us-gaap:ImpairmentOfLeasehold

us-gaap:ImpairmentOfLongLivedAssetsToBeDisposedOf
us-gaap:StatementBusinessSegments

us-gaap:IncomeLossFromDiscontinuedOperationsNetOfTax
us-gaap:DisposalGroupClassification, us-gaap:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations

us-gaap:IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity

us-gaap:IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare

us-gaap:IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare

us-gaap:IncreaseDecreaseInAccountsPayableAndAccruedLiabilities

us-gaap:IncreaseDecreaseInEmployeeRelatedLiabilities

us-gaap:IncreaseDecreaseInOtherCurrentAssets

us-gaap:IncreaseDecreaseInOtherCurrentLiabilities

us-gaap:IncreaseDecreaseInOtherNoncurrentAssets

us-gaap:IndefiniteLivedIntangibleAssetsPurchaseAccountingAdjustments
us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments

us-gaap:LaborAndRelatedExpense

us-gaap:LeaseAndRentalExpense

us-gaap:LeaseCost

us-gaap:LiabilitiesAssumed1
us-gaap:DebtInstrument, us-gaap:LongtermDebtType, us-gaap:VariableRate
us-gaap:LineOfCreditFacilityInterestRateDuringPeriod
us-gaap:DebtInstrument, us-gaap:VariableRate
us-gaap:CreditFacility, us-gaap:DebtInstrument
us-gaap:LineOfCreditFacilityUnusedCapacityCommitmentFeePercentage

us-gaap:NetCashProvidedByUsedInFinancingActivitiesContinuingOperations

us-gaap:NetCashProvidedByUsedInInvestingActivitiesContinuingOperations

us-gaap:NetCashProvidedByUsedInOperatingActivitiesContinuingOperations

us-gaap:NetIncomeLossAttributableToRedeemableNoncontrollingInterest

us-gaap:NoncontrollingInterestIncreaseFromBusinessCombination

us-gaap:OperatingLeaseCost

us-gaap:OperatingLeaseExpense

us-gaap:OperatingLeasePayments

us-gaap:OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAfterTax
us-gaap:StatementEquityComponents

us-gaap:OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationTax

us-gaap:OtherCostAndExpenseOperating

us-gaap:OtherNoncashIncomeExpense
us-gaap:LoansInsuredOrGuaranteedByGovernmentAuthorities, us-gaap:UnusualOrInfrequentItem
us-gaap:OtherOperatingIncome

us-gaap:PaymentsForProceedsFromDerivativeInstrumentInvestingActivities

us-gaap:PaymentsForProceedsFromOtherInvestingActivities
us-gaap:DebtInstrumentRedemptionPeriod, us-gaap:SubsequentEventType
us-gaap:PaymentsOfDebtExtinguishmentCosts
us-gaap:DisposalGroupClassification, us-gaap:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations

us-gaap:PaymentsOfDebtIssuanceCosts

us-gaap:PaymentsOfDividendsMinorityInterest

us-gaap:ProceedsFromDivestitureOfBusinesses
us-gaap:DisposalGroupClassification, us-gaap:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations
us-gaap:DisposalGroupClassification, us-gaap:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations, us-gaap:SubsequentEventType
us-gaap:DebtInstrumentRedemptionPeriod, us-gaap:SubsequentEventType
us-gaap:ProceedsFromIssuanceOfSecuredDebt

us-gaap:ProceedsFromLinesOfCredit

us-gaap:ProceedsFromPaymentsForOtherFinancingActivities

us-gaap:ProceedsFromSaleOfPropertyPlantAndEquipment

us-gaap:ProfessionalFees

us-gaap:RepaymentsOfLongTermLinesOfCredit
us-gaap:DebtInstrument

us-gaap:RepaymentsOfOtherLongTermDebt

us-gaap:RepaymentsOfSecuredDebt

us-gaap:RepaymentsOfSeniorDebt

us-gaap:RightOfUseAssetObtainedInExchangeForFinanceLeaseLiability

us-gaap:RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability
us-gaap:AwardType
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresWeightedAverageGrantDateFairValue
us-gaap:AwardType
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue
us-gaap:AwardType
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriodWeightedAverageExercisePrice

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue

us-gaap:ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice

us-gaap:ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice

us-gaap:ShortTermLeaseCost

us-gaap:StockIssuedDuringPeriodValueStockOptionsExercised
us-gaap:StatementEquityComponents

us-gaap:SuppliesExpense

us-gaap:UnrecognizedTaxBenefitsIncomeTaxPenaltiesExpense

us-gaap:VariableLeaseCost

us-gaap:WeightedAverageNumberDilutedSharesOutstandingAdjustment
us-gaap:DebtInstrumentRedemptionPeriod
us-gaap:WriteOffOfDeferredDebtIssuanceCost

achc:AccruedExpenseCurrent

achc:DebtInstrumentUnamortizedIssuanceCostsDiscountPremiumNet

achc:DeferredTaxAssetsInterestCarryforward

achc:DeferredTaxAssetsLeaseRightOfUseLiabilities

achc:DeferredTaxAssetsLeases

achc:DeferredTaxAssetsNetOperatingLossAndTaxCreditCarryforwards

achc:DeferredTaxAssetsTaxDeferredAccruedExpense

achc:DeferredTaxAssetsTaxDeferredInsuranceReserves

achc:DeferredTaxLiabilitiesLeaseRightOfUseAssets
us-gaap:FairValueByMeasurementBasis
achc:DerivativeAssetsLiabilitiesAtCarryingValueNet
us-gaap:FairValueByMeasurementBasis
achc:DerivativeInstrumentsAtCarryingValueNet
us-gaap:DisposalGroupClassification, us-gaap:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations
achc:DisposalGroupIncludingDiscontinuedOperationOperatingLeaseLiabilitiesCurrent
us-gaap:DisposalGroupClassification, us-gaap:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations
achc:DisposalGroupIncludingDiscontinuedOperationOperatingLeaseLiabilitiesNoncurrent
us-gaap:DisposalGroupClassification, us-gaap:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations
achc:DisposalGroupIncludingDiscontinuedOperationOperatingLeaseRightOfUseAssetsNoncurrent

achc:FinanceLeaseLiabilityPaymentsDueAfterYearFour

achc:GovernmentReliefFundsLiabilityCurrent

achc:IntangibleAssetsAccumulatedAmortizationCarryingAmount

achc:LeaseLiability

achc:LeaseRightOfUseAsset

achc:LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFour

achc:NetCostReportSettlementDueFromDueTo
us-gaap:FairValueByMeasurementBasis
achc:OtherLongTermDebtFairValue

achc:WorkersCompensationDeposits

us-gaap:AccrualForTaxesOtherThanIncomeTaxesCurrent

us-gaap:AccruedInsuranceCurrent

us-gaap:AccumulatedAmortizationDeferredFinanceCosts
us-gaap:BalanceSheetLocation
us-gaap:AssetsHeldForSaleNotPartOfDisposalGroup

us-gaap:AssetsHeldForSaleNotPartOfDisposalGroupCurrent
us-gaap:DisposalGroupClassification, us-gaap:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations
us-gaap:AssetsOfDisposalGroupIncludingDiscontinuedOperation

us-gaap:AssetsOfDisposalGroupIncludingDiscontinuedOperationCurrent
us-gaap:DisposalGroupClassification, us-gaap:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations
us-gaap:DisposalGroupClassification, us-gaap:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations
us-gaap:CashFlowHedgeDerivativeInstrumentLiabilitiesAtFairValue
us-gaap:DisposalGroupClassification, us-gaap:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations, us-gaap:SubsequentEventType
us-gaap:FairValueByLiabilityClass
us-gaap:ContractWithCustomerLiability
us-gaap:FairValueByLiabilityClass, us-gaap:StatementBusinessSegments
us-gaap:MajorCustomers, us-gaap:BalanceSheetLocation, us-gaap:TypeOfArrangement, us-gaap:UnusualOrInfrequentItem

us-gaap:DebtInstrumentCarryingAmount
us-gaap:DebtInstrument
us-gaap:DebtInstrumentFaceAmount

us-gaap:DeferredFinanceCostsNet

us-gaap:DeferredIncomeTaxAssetsNet

us-gaap:DeferredIncomeTaxLiabilities

us-gaap:DeferredRevenueCurrent

us-gaap:DeferredTaxAssetsGross

us-gaap:DeferredTaxAssetsInvestmentInSubsidiaries

us-gaap:DeferredTaxAssetsOperatingLossCarryforwardsForeign

us-gaap:DeferredTaxAssetsOperatingLossCarryforwardsStateAndLocal

us-gaap:DeferredTaxAssetsOther

us-gaap:DeferredTaxAssetsTaxCreditCarryforwards

us-gaap:DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefits

us-gaap:DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAllowanceForDoubtfulAccounts

us-gaap:DeferredTaxLiabilitiesGoodwillAndIntangibleAssetsIntangibleAssets

us-gaap:DeferredTaxLiabilitiesPrepaidExpenses

us-gaap:DeferredTaxLiabilitiesPropertyPlantAndEquipment
us-gaap:DisposalGroupClassification, us-gaap:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations, us-gaap:RetirementPlanName, us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanBenefitObligation
us-gaap:DisposalGroupClassification, us-gaap:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations, us-gaap:RetirementPlanName, us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanFairValueOfPlanAssets
us-gaap:DisposalGroupClassification, us-gaap:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations, us-gaap:RetirementPlanName, us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanFundedStatusOfPlan
us-gaap:FairValueByMeasurementBasis
us-gaap:DerivativeAssetsLiabilitiesAtFairValueNet

us-gaap:DerivativeInstrumentsAndHedgesLiabilitiesNoncurrent
us-gaap:FairValueByMeasurementBasis
us-gaap:DerivativeInstrumentsInHedgesAtFairValueNet

us-gaap:DerivativeLiabilitiesCurrent
us-gaap:DisposalGroupClassification, us-gaap:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations
us-gaap:DisposalGroupIncludingDiscontinuedOperationAccountsNotesAndLoansReceivableNet
us-gaap:DisposalGroupClassification, us-gaap:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations
us-gaap:DisposalGroupIncludingDiscontinuedOperationAccountsPayableCurrent
us-gaap:DisposalGroupClassification, us-gaap:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations
us-gaap:DisposalGroupIncludingDiscontinuedOperationCashAndCashEquivalents
us-gaap:DisposalGroupClassification, us-gaap:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations
us-gaap:DisposalGroupIncludingDiscontinuedOperationDeferredTaxLiabilities
us-gaap:DisposalGroupClassification, us-gaap:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations
us-gaap:DisposalGroupIncludingDiscontinuedOperationIntangibleAssetsNoncurrent
us-gaap:DisposalGroupClassification, us-gaap:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations
us-gaap:DisposalGroupIncludingDiscontinuedOperationOtherCurrentAssets
us-gaap:DisposalGroupClassification, us-gaap:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations
us-gaap:DisposalGroupIncludingDiscontinuedOperationOtherCurrentLiabilities
us-gaap:DisposalGroupClassification, us-gaap:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations
us-gaap:DisposalGroupIncludingDiscontinuedOperationOtherNoncurrentAssets
us-gaap:DisposalGroupClassification, us-gaap:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations
us-gaap:DisposalGroupIncludingDiscontinuedOperationOtherNoncurrentLiabilities
us-gaap:DisposalGroupClassification, us-gaap:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations
us-gaap:DisposalGroupIncludingDiscontinuedOperationPropertyPlantAndEquipmentNoncurrent

us-gaap:EmployeeRelatedLiabilitiesCurrent
us-gaap:ConsolidatedEntities

us-gaap:FinanceLeaseLiability

us-gaap:FinanceLeaseLiabilityCurrent
us-gaap:BalanceSheetLocation

us-gaap:FinanceLeaseLiabilityNoncurrent
us-gaap:BalanceSheetLocation

us-gaap:FinanceLeaseLiabilityPaymentsDue

us-gaap:FinanceLeaseLiabilityPaymentsDueAfterYearFive

us-gaap:FinanceLeaseLiabilityPaymentsDueNextTwelveMonths

us-gaap:FinanceLeaseLiabilityPaymentsDueYearFive

us-gaap:FinanceLeaseLiabilityPaymentsDueYearFour

us-gaap:FinanceLeaseLiabilityPaymentsDueYearThree

us-gaap:FinanceLeaseLiabilityPaymentsDueYearTwo

us-gaap:FinanceLeaseLiabilityPaymentsRemainderOfFiscalYear

us-gaap:FinanceLeaseLiabilityUndiscountedExcessAmount
us-gaap:BalanceSheetLocation
us-gaap:FinanceLeaseRightOfUseAsset

us-gaap:FinanceLeaseWeightedAverageDiscountRatePercent

us-gaap:FiniteLivedIntangibleAssetsAccumulatedAmortization
us-gaap:FiniteLivedIntangibleAssetsByMajorClass

us-gaap:FiniteLivedIntangibleAssetsGross
us-gaap:FiniteLivedIntangibleAssetsByMajorClass

us-gaap:ForeignCurrencyContractsLiabilityFairValueDisclosure

us-gaap:GoodwillGross
us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments

us-gaap:IncomeTaxesReceivable

us-gaap:InsuranceReceivableForMalpractice

us-gaap:InsuranceReceivableForMalpracticeCurrent

us-gaap:InsuranceReceivableForMalpracticeNoncurrent

us-gaap:IntangibleAssetsGrossExcludingGoodwill

us-gaap:InterestPayableCurrent

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths

us-gaap:LesseeOperatingLeaseLiabilityPaymentsRemainderOfFiscalYear
us-gaap:DisposalGroupClassification, us-gaap:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations
us-gaap:LiabilitiesOfDisposalGroupIncludingDiscontinuedOperation

us-gaap:LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationCurrent
us-gaap:DisposalGroupClassification, us-gaap:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations
us-gaap:CreditFacility
us-gaap:LineOfCredit
us-gaap:CreditFacility, us-gaap:DebtInstrument
us-gaap:CreditFacility, us-gaap:DebtInstrument, us-gaap:LongtermDebtType
us-gaap:CreditFacility, us-gaap:LongtermDebtType
us-gaap:FairValueByMeasurementBasis, us-gaap:LongtermDebtType
us-gaap:CreditFacility, us-gaap:DebtInstrument, us-gaap:LongtermDebtType
us-gaap:LineOfCreditFacilityMaximumBorrowingCapacity
us-gaap:CreditFacility, us-gaap:DebtInstrument
us-gaap:LineOfCreditFacilityRemainingBorrowingCapacity
us-gaap:LongtermDebtType
us-gaap:FairValueByMeasurementBasis, us-gaap:LongtermDebtType
us-gaap:LinesOfCreditFairValueDisclosure

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalAfterYearFive

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo

us-gaap:MalpracticeLossContingencyAccrualUndiscounted

us-gaap:MalpracticeLossContingencyAccrualUndiscountedCurrent

us-gaap:MalpracticeLossContingencyAccrualUndiscountedNoncurrent
us-gaap:FairValueByMeasurementBasis, us-gaap:LongtermDebtType
us-gaap:NotesPayableFairValueDisclosure

us-gaap:OperatingLeaseWeightedAverageDiscountRatePercent

us-gaap:OperatingLossCarryforwardsValuationAllowance

us-gaap:OtherAssetsMiscellaneousCurrent

us-gaap:OtherLongTermDebt
us-gaap:FairValueByMeasurementBasis

us-gaap:OtherReceivablesNetCurrent

us-gaap:PrepaidExpenseCurrent

us-gaap:RedeemableNoncontrollingInterestEquityCarryingAmount
us-gaap:DebtInstrument
us-gaap:SeniorNotes
us-gaap:DebtInstrumentRedemptionPeriod
us-gaap:FairValueByMeasurementBasis, us-gaap:LongtermDebtType
us-gaap:AwardType
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue

us-gaap:SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1

us-gaap:UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestAccrued

us-gaap:UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate

us-gaap:WorkersCompensationLiabilityCurrent

us-gaap:WorkersCompensationLiabilityNoncurrent

Plots across concepts


IncomeStatement
Other Comprehensive Income Loss Net Of Tax
Balance Sheet
Intangible Assets Net Excluding Goodwill
Assets
Inventory Net
Current Assets
Inventory Net
NonCurrent Assets
Deferred Income Tax Assets Net
PropertyPlantAndEquipmentNet
Accumulated Depreciation Depletion And Amortization Property Plant And Equipment
Liabilities
Operating Lease Liability
Current Liabilities
Taxes Payable Current
Noncurrent Liabilities
Deferred Income Tax Liabilities Net
Stockholders Equity
Accumulated Other Comprehensive Income Loss Net Of Tax
CashFlow
Net Cash Provided By Used In Investing Activities
NetCashProvidedByUsedInOperatingActivities
Share Based Compensation
NetCashProvidedByUsedInInvestingActivities
Net Cash Provided By Used In Investing Activities
NetCashProvidedByUsedInFinancingActivities
Net Cash Provided By Used In Financing Activities
Shares
Weighted Average Number Of Shares Outstanding Basic
OperatingLeaseLiability
Operating Lease Liability Current
LesseeOperatingLeaseLiabilityPaymentsDue
Lessee Operating Lease Liability Payments Due Year Four

Tables

  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-30
us-gaap:CommonStockValue ██████████████████████▆▆▆▅▄▄▄▃▃▃▃▃▃▂▂▁▁0.8890.8870.880.8790.8790.8780.8770.8770.8760.8760.8740.8740.8730.8730.8710.870.870.8690.8670.8660.8650.8650.7070.7070.7060.6540.5920.5920.5920.5020.5010.50.50.50.4990.4180.4170.3210.321NANANANANA
us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding █▁90.5989.941NA88.85688.60887.971NA87.85987.83787.694NA87.53787.46787.294NA87.17287.0886.908NA86.61886.87683.42NA71.1168.73562.894NA59.40951.81950.486NA50.34350.28250.25NA41.99136.69532.333NA17.63311617.63317.633NA17.633116
us-gaap:WeightedAverageNumberOfSharesOutstandingBasic █▁88.84288.242NA87.91187.87287.765NA87.64987.61887.505NA87.34487.30387.121NA87.01786.95486.762NA86.61886.55382.943NA70.66468.29662.53NA59.17551.61650.12NA50.0450.00949.911NA41.75736.50732.12NA17.63311617.63317.633NA17.633116
us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount ▁█0.40.7NA2.02.42.9NA1.91.92.6NA1.61.62.0NA1.01.61.2NA0.21.20.8NA0.30.30.9NA0.50.60.5NA0.40.40.6NA0.40.60.4NANANANANANA
us-gaap:EarningsPerShareBasic ██▁███▇███▅████████▆█████████████▇▇███▇█▇▇▇▇0.50.11-8.910.420.470.38-0.130.490.550.34-3.80.530.670.580.80.520.570.40.48-1.360.650.310.490.420.50.230.380.430.430.260.250.290.240.070.090000000000000020.150.160.11-0.780.18-1.24-0.010.029999999999999970.09
us-gaap:EarningsPerShareDiluted █▇▁███▇███▅████████▆█████████████▇▇██▇▇█▇▇▇▇0.490.11-8.780.420.460.38-0.130.480.550.34-3.80.530.670.580.80.520.570.40.48-1.360.650.310.490.420.490.230.370.430.430.260.240.290.240.070.100000000000000030.150.160.11-0.780.18-1.24-0.010.029999999999999970.09
us-gaap:IncomeLossFromContinuingOperationsPerBasicShare █▅██▆▅▁▆▆▄5e-072.5e-075.1e-075.1e-073.4000000000000003e-072.4e-07-1.5e-072.8e-073.1e-071.6e-07NANANANANANANANA4.9e-07-1.3600000000000001e-066.5e-073.1e-074.9e-074.2e-075e-072.3000000000000002e-073.700000000000001e-074.3e-074.3e-072.6e-072.5e-072.9e-072.4e-078e-089.000000000000003e-081.6e-071.7000000000000001e-071.0000000000000001e-07-7.2e-072.1e-07-1.23e-06-1e-086e-089e-08
us-gaap:IncomeLossFromContinuingOperationsPerDilutedShare █▅██▆▅▁▆▆▄4.9e-072.5e-075e-075e-073.4000000000000003e-072.3000000000000002e-07-1.5e-072.8e-073.1e-071.5e-07NANANANANANANANA4.9e-07-1.3600000000000001e-066.5e-073.1e-074.9e-074.2e-074.9e-072.3000000000000002e-073.700000000000001e-074.3e-074.3e-072.6e-072.5e-072.9e-072.4e-078e-081.0000000000000004e-071.6e-071.7000000000000001e-071.0000000000000001e-07-7.2e-072.1e-07-1.23e-06-1e-086e-089e-08
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-30
 EBT Margin us-gaap:ConsolidatedEntities srt:ParentCompany█▃▁▃538.028509.173500.049509.913NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 Net profit Margin us-gaap:ConsolidatedEntities srt:ParentCompany█▃▁▃538.028509.173500.049509.913NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-30
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-30
us-gaap:ComprehensiveIncomeNetOfTax ▆█▁▆▆▅▆▆▆▆▃▆▅▆▆▆▆▆▅▄▅▅▆▆▆▅▆▅44.514381.082-714.92497.76433.338-44.79181.856-5.81115.10965.262-353.55221.653-55.656123.54680.691105.838132.62256.136-81.883-201.066-133.104-22.72714.212-3.15780.017-14.795-9.384-11.455NANANANANANANANANANANANANANANANA
us-gaap:ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest █▇█▆▆▆▇▅▄▄▄▄▄▄▄▄▄▃▃▃▁▃▂▂1.150.7621.1310.5630.6350.6040.9410.1570.0610.040.1080.0470.0540.0550.06-0.1290.008-0.185-0.392-0.402-0.854-0.319-0.614-0.464NANANANANANANANANANANANANANANANANANANANA
us-gaap:ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest ▆█▁▆▆▅▆▆▆▆▃▆▅▆▆▆▆▆▅▄▅▅▆▆▆▅▆▅▆▆▆▆45.664381.844-713.79398.32733.973-44.18782.797-5.65415.1765.302-353.44421.7-55.602123.60180.751105.709132.6355.951-82.275-201.468-133.958-23.04613.598-3.62180.017-14.795-9.384-11.45522.45113.05812.2814.364NANANANANANANANANANANANA
us-gaap:CostsAndExpenses ▆▆▁█▇▆▁██517.159521.875-325.78788.577700.381484.433-251.008727.691729.557NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:GainsLossesOnExtinguishmentOfDebt █▁▇█▇0.0-24.65-3.9620.0-3.271NANANANANA-0.8750.00.0-0.940.00.0-0.81NA-0.842-3.411NANA-0.839-9.979NANANANA0.0NA0.00.00.0-9.35NANANANANANANANANANA
 us-gaap:GainsLossesOnExtinguishmentOfDebt us-gaap:DebtInstrument achc:FivePointZeroZeroZeroPercentSeniorNotesDueTwoThousandTwentyNineNANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:GainsLossesOnExtinguishmentOfDebt us-gaap:DebtInstrument achc:TrancheB3CreditFacilityNANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:GainsLossesOnExtinguishmentOfDebt us-gaap:DebtInstrument,us-gaap:LongtermDebtType achc:RepricingFacilitiesAmendments,achc:AmendedAndRestatedCreditFacilityNANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:GainsLossesOnExtinguishmentOfDebt us-gaap:DebtInstrument,us-gaap:LongtermDebtType achc:RepricingFacilitiesAmendments,achc:PriorCreditFacilityNANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:GainsLossesOnExtinguishmentOfDebt us-gaap:DebtInstrumentRedemptionPeriod achc:RedemptionOfFivePointTwoSixFivePercentageSeniorNotesNANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:GainsLossesOnExtinguishmentOfDebt us-gaap:DebtInstrumentRedemptionPeriod achc:RedemptionOfSixPointFiveZeroZeroPercentageSeniorNotesNANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:GainsLossesOnExtinguishmentOfDebt us-gaap:LongtermDebtType achc:PriorCreditFacilityNA10.9NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:IncomeLossFromContinuingOperations █▁44.51422.358NANA27.03818.374NANANANANANANANANANANANA41.818-117.80856.44525.36933.92429.00633.84314.59222.30125.453NANANANANANANANANANANANANANANANA
us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest █▇███▇▇██▇▁███████▇▅█▇█▇█▇▇▇▇▇▇▇▇▇▇▇▇▇▆▇▆▇▇▇64.99729.32449.28444.72749.9339.856-10.24849.5659.80536.871-341.33655.03669.25848.08860.63961.45966.21648.48442.438-115.81473.85232.47952.51841.67549.35521.20534.8433.15637.36220.79619.93522.28720.2916.7327.50610.31110.025.033-23.4714.586-18.946-0.5281.0261.821
us-gaap:IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest █▅██▆▅▁▅▆▄45.66423.1246.15645.06330.72121.251-12.19224.9226.96413.618NANANANANANANANA41.426-118.2155.59125.68834.53829.4733.84314.59222.30125.45322.45713.02112.39914.54612.2714.0544.4886.5886.1013.368-14.6553.722-21.735-0.2571.0081.649
us-gaap:IncomeTaxExpenseBenefit █▅█▅▅▅▃▅▆▅▁▅▆▃▁▇▇▇▄▄█▅█▆▇▅▆▅▇▅▅▅▅▄▄▄▄▄▁▄▄▃▃▃19.3336.20419.4357.1668.2165.7890.0656.83711.6047.36-9.8078.75710.368-2.786-9.0515.9716.57813.7111.0122.39618.2617.1118.59412.66915.5126.61312.5397.70314.9057.7757.5367.7418.022.6783.0183.7233.9191.665-8.7650.8642.789-0.2710.0180.172
us-gaap:InterestIncomeExpenseNet ▇▄▃▃▃▂▂▁▁▁▁▁▂▂▂▂▂▂▁▁▁▃▄▅▅▆▇▇██████-16.687-29.027-39.041-37.553-38.726-42.785-43.71-46.644-48.61-48.13-47.704-46.651-45.812-45.243-45.23-44.515-43.505-42.757-46.01-48.843-48.758-37.714-28.81-27.737-28.049-22.146-14.716-14.068-9.73-9.707-9.578-9.465-9.445-8.762NANANANANANANANANANA
us-gaap:NetIncomeLoss ██▁███▇███▅████████▆█████████████▇▇▇▇▇▇▇▇▇▇▇44.5149.717-783.67236.99841.07933.463-11.25442.56648.1429.471-331.63746.23258.83650.81969.62945.61849.6334.95841.818-117.80856.44525.68834.56629.5533.84414.59422.12925.40222.45113.05812.2814.36412.1973.7384.3656.455.9093.679-15.9093.123-21.857-0.2490.5241.566
us-gaap:NetIncomeLossAttributableToNoncontrollingInterest █▇█▆▆▆▇▅▄▄▄▄▄▄▄▄▄▃▃▃▁▃▂▂1.150.7621.1310.5630.6350.6040.9410.1570.0610.040.1080.0470.0540.0550.06-0.1290.008-0.185-0.392-0.402-0.854-0.319-0.614-0.464NANANANANANANANANANANANANANANANANANANANA
us-gaap:OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax ▅▅▇▇▅▃█▄▄▆▄▅▂▇▆▇▇▆▃▃▁▄▅▅▆▅▅▅0.0-4.26108.09882.332-7.183-122.0135.923-59.975-50.61844.481-44.743-31.959-143.59992.7818.59769.62292.07627.046-126.244-89.645-213.468-48.415-24.18-32.70746.173-29.389-29.349-36.857NANANANANANANANANANANANANANANANA
 us-gaap:OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax us-gaap:StatementEquityComponents us-gaap:AccumulatedDefinedBenefitPlansAdjustment▅▅▁▃▅█▄▅▅▅▆▅█▃▅▃0.00.033-0.409-0.2150.0180.321-0.1460.0560.047-0.0410.110.060.271-0.174-0.036-0.192NANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax us-gaap:StatementEquityComponents us-gaap:AccumulatedTranslationAdjustment▅▄▇▇▄▂█▃▃▆▃▄▁▇▅▆▇▅0.0-4.293108.50782.547-7.201-122.321136.069-60.031-50.66544.522-44.853-32.019-143.8792.95418.07669.81492.40527.046NANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:OtherComprehensiveIncomeLossNetOfTax ▃█▄▄▃▂▅▃▃▄▃▃▂▄▄▄▄▄▂▂▁▃▃▃▄▃▃▃0.0371.36568.74860.766-7.741-78.25493.11-48.377-33.03135.791-21.915-24.579-114.49272.72711.06260.2282.99221.178-123.701-83.258-189.549-48.415-20.354-32.70746.173-29.389-31.513-36.857NANANANANANANANANANANANANANANANA
 us-gaap:OtherComprehensiveIncomeLossNetOfTax us-gaap:StatementEquityComponents us-gaap:AccumulatedOtherComprehensiveIncomeNA371.36568.74860.766-7.741-78.25493.11-48.377-33.03135.791-21.915-24.579-114.49272.72711.06260.2282.99221.178-123.701-83.258-189.549-48.415-20.354-32.70746.173-29.389-31.513NANANANANANANANANANANANANANANANANA
us-gaap:ProfitLoss ██▁███▇███▅████████▆████████45.66410.479-782.54137.56141.71434.067-10.31342.72348.20129.511-331.52946.27958.8950.87469.68945.48949.63834.77341.426-118.2155.59125.36933.95229.08633.84414.59422.12925.402NANANANANANANANANANANANANANANANA
us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax ▆▆▆█▇████▇▇▇▇▇▇▇▇▇▇▇▇▆▅▅▅▄▃▃▃▃▃▃▂▂▂▂▂▂▂▁▁▁▁▁582.156551.199541.276833.304750.311782.81780.232777.251789.362760.617743.547760.916765.738742.241724.512716.714715.896679.194702.888744.802767.054627.183495.319488.746461.798374.158294.901303.001220.664206.119189.999190.574182.951161.213114.252103.116100.5391.29875.35563.05863.57516.84613.75915.872
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-30
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-30
us-gaap:Assets ▅▅▇███████▇▇▇▇▇▇▇▇▇▇██▅▅▅▄▃▃▂▂▂▂▂▂▂▁▁▁▁▁4564.0014526.9156499.3627105.1456833.2286717.9956879.1426728.1256790.4186785.5176172.5046529.5846503.1476584.7296424.5026342.5866228.0226065.796024.7266452.9786684.4996696.3594279.2084145.2393926.3853627.1452223.592140.4681592.5521282.9451224.6591162.9861114.1721085.177983.413603.758586.453453.252412.996269.609NANA45.395NA
us-gaap:Liabilities ▄▄███▇████▇▇▇▇▇▇▇▇▇▇█▇▅▅▄▅▃▃▂▂▂▂▂▂▂▁▁▁▁▁2149.0212172.2164544.5914443.9594295.9514220.3374340.614275.074335.8654350.2433810.3913820.6373821.0553858.4523829.2143836.3533833.5853812.2873839.2484192.714235.3384125.7532588.1252465.9872260.0812377.3581342.6251253.892697.33786.795743.949696.453663.332648.318550.863350.195340.109352.572316.631192.623NANA20.288NA
us-gaap:LiabilitiesAndStockholdersEquity ▅▅▇███████▇▇▇▇▇▇▇▇▇▇██▅▅▅▄▃▃▂▂▂▂▂▂▂▁▁▁▁▁4564.0014526.9156499.3627105.1456833.2286717.9956879.1426728.1256790.4186785.5176172.5046529.5846503.1476584.7296424.5026342.5866228.0226065.796024.7266452.9786684.4996696.3594279.2084145.2393926.3853627.1452223.592140.4681592.5521282.9451224.6591162.9861114.1721085.177983.413603.758586.453453.252412.996269.609NANA45.395NA
us-gaap:StockholdersEquity ▇▇▆█▇▇▇▇▇▇▇████▇▇▇▇▇▇█▅▅▅▄▃▃▃▂▂▂▂▂▂▁▁▁▁▁2356.5862297.9991899.4562606.6392503.3382464.1672505.3812420.6912422.3462403.3432333.3072680.2492653.3012701.6192572.8712487.5852376.862235.9332167.7242242.1212436.282562.871683.0281670.5521666.3041249.787880.965886.576895.222496.15480.71466.533450.84436.859432.55253.563246.344100.6896.36576.986NANA25.107NA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-30
us-gaap:AssetsCurrent ▃▂█▃▃▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▁▁▁▁▁▁▁▁▁▁▁575.626528.2252523.395756.41610.941502.952542.211536.913471.494452.514450.417490.733489.222503.893471.55463.824459.512424.013427.927392.947392.367393.265294.736378.271325.905325.378274.143229.84449.596157.037145.126142.88127.089212.292140.98187.031184.13262.222112.60536.357NANA16.924NA
us-gaap:CashAndCashEquivalentsAtCarryingValue ▄▄█▇▅▂▃▃▂▂▂▂▂▂▂▂▂▂▂▁▂▂▁▂▂▂▃▂▆▁▁▁▁▃▂▁▃▁▂▁▁▁▁▁185.546178.915378.697338.702211.93981.004124.19292.943.54143.68450.5148.92879.46357.80867.2975.66179.43443.08757.06327.75130.71636.58211.21550.76234.57238.03294.0442.179277.7447.2434.5694.0347.39999.77549.39911.719120.1760.8461.1181.2543.4568.0228.6146.479
us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents NANA378.697NANANA99.535NANANA30.192NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:AccountsReceivableNetCurrent ▇▆▆█▇█████▇██▇▇▇▇▆▆▆▇▆▅▅▄▄▃▃▃▃▃▂▂▂▂▂▁▁▁▁286.522276.041273.551333.231325.507339.505339.775350.225346.489331.851318.087345.659329.256325.148296.925295.756288.106276.089263.327277.568285.132276.88216.626214.883182.315172.938118.378130.253110.904104.58595.88593.31185.87278.7863.8754.77745.65843.80235.12725.469NANA5.469NA
us-gaap:InventoryNet ▂▂▃▄▂▃▃▁██▄▄▃▃▃▂▃▃▂▃▃▃▂4.6664.5794.8515.0924.7124.8824.7594.3376.0766.1155.0555.0214.7334.7724.7874.6984.9174.7234.6334.7584.8194.7794.681NANANA3.249NANANANANANANANANANANANANANANANANA
us-gaap:OtherAssetsCurrent ▇▅▄▆▅▆▅▆▆▅▆▆▅█▇▆▆▇▇▆▅▅▅▅▅▅▃▃▃▂▂▂▂▂▁▁▁▁▁▁103.55873.26961.33284.47773.49582.44378.24493.78881.46476.97981.8296.14680.503120.937107.33592.40791.972104.837107.53787.62876.51979.80366.89575.33570.32577.59641.5737.62648.19228.1828.96932.51619.98821.16416.33215.30512.88211.89710.1219.634NANA2.841NA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-30
 us-gaap:AssetsNoncurrent us-gaap:ConsolidatedEntities srt:ParentCompany▇█▆▄▁3645.7343661.6783640.8093608.6253571.187NA3516.967NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:PropertyPlantAndEquipmentGross ▅▅▄████▇▇▇▇▇▇▇▇▇▆▆▆▆▇▇▄▄▄▃▃▃▂▂▁▁▁▁▁▁▁2141.7012127.2042072.5394093.3643939.3563899.2073965.8093686.7653707.5533688.7963593.7513571.7653525.1333548.3653395.5493277.6123144.8392997.6222918.2842977.7293456.4683488.3831828.5231725.4591540.7951302.2161130.3131076.615459.644437.851399.398354.627332.864284.97249.972165.881121.585NA88.796NANANANANA
us-gaap:AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment ▅▅▅█▇▇▇▆▆▅▅▅▄▄▄▄▃▃▃▃▂▂▂▂▂▂▁▁▁▁▁▁▁▁▁▁▁490.427472.472449.643839.644778.572747.468741.775555.346543.477515.744485.985445.123421.802396.836347.419311.397278.753248.084214.589191.083181.928150.618119.47101.29385.40572.53960.61350.23740.25834.48529.28924.89220.71716.43913.0310.6938.744NA5.824NANANA3.323NA
us-gaap:PropertyPlantAndEquipmentNet ▄▄▄█████████▇█▇▇▇▇▇▇██▅▄▄▄▃▃▂▂▂▂▂▁▁▁▁▁▁▁1651.2741654.7321622.8963253.723160.7843151.7393224.0343131.4193164.0763173.0523107.7663126.6423103.3313151.5293048.132966.2152866.0862749.5382703.6952786.6463274.543337.7651709.0531624.1661455.391229.6771069.71026.378419.386403.366370.109329.735312.147268.531236.942155.188112.84198.2982.97257.783NANA18.752NA
us-gaap:Goodwill ▆▆▆▇▇▇▇▇▇▇▇███████████▆▆▆▆▃▃▂▂▂▂▂▂▂▁▁▁▁▁2103.5032105.2642105.2642460.7222425.3722426.72449.1312424.2412435.0252441.9992396.4122729.9412739.3032779.4012751.1742730.3622710.3332683.7872681.1882702.0092832.2012771.3652128.2151981.141946.0281904.055802.986804.647665.695665.421661.549647.01630.749565.586557.402334.622262.325261.421186.815147.081NANA9.157NA
us-gaap:IndefiniteLivedIntangibleAssetsExcludingGoodwill ▆▆▆▇▇▇▇▇▇▇▇▇▇▇▇▇▇▇▇▇▇█▅▅▅▅▂▂▂▂▂▂▂▂▁▁▁68.46368.62768.53590.02389.04789.05290.35789.02889.61389.79688.9991.25991.56691.03687.34886.95184.98283.71883.3184.3584.856102.34859.22558.557.91257.7820.77420.6219.71319.45219.15217.60517.07114.27713.81510.5367.215NA6.091NANANANANA
us-gaap:IntangibleAssetsNetExcludingGoodwill ▅▅▅▇▇▇▇▇▇▇▇▇▇▇▇▇▇▇▇▇▇█▅▅▅▅▂▂▂▂▂▂▂▂▂▁▁▁▁▂68.46368.62768.53590.02389.04789.05290.35789.02889.61389.79688.9991.25991.56691.03687.34886.95184.98283.71883.3184.38584.996102.59359.57558.97658.51458.50821.63621.62120.85220.7320.56819.18318.83816.24715.98812.5349.1869.3818.23218.887NANA0.544NA
us-gaap:OperatingLeaseRightOfUseAsset ▁▁▁▇▇▇████101.69196.20596.937464.596475.262476.028501.837479.881491.551506.787NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:OtherAssetsNoncurrent ▅▅▆▆▅▅▅▅▅▅▅▄▄▄▄▅▅▅▄▃▃▄▃▅█▅▃▃▃▃▂▂▂▂▃▁▁▂▁▁60.29970.68579.12676.43268.54868.21768.23363.27262.2971.62964.92754.29551.07255.17249.57265.36959.63761.72751.31740.81442.00749.61838.51569.408106.58269.03341.98442.04932.79632.06627.30724.17825.34922.52132.114.38315.99416.92216.3669.501NANA0.018NA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-30
us-gaap:AccountsPayableCurrent ▅▆▅█▇███▇▇▇██▇▆▆▅▆▅▆▇▇▆▅▄▄▃▃▂▂▃▂▂▂▂▁▁▁▁▁87.22391.50587.815130.395118.799134.693127.045131.472115.651116.666117.74133.914130.228122.43102.29995.10581.39992.67380.03492.819108.211118.2191.34178.38458.71464.91848.69643.2631.51528.40536.02626.44928.07220.11619.08113.3237.878.0748.64210.984NANA2.787NA
us-gaap:LiabilitiesCurrent ▃▃█▄▄▄▃▃▃▃▃▃▃▃▃▃▃▃▃▃▃▃▂▂▂▂▂▂▁▁▁▁▁▁▁▁▁▁▁▁425.215410.9791308.185601.339527.364579.584463.576458.206430.688424.671416.377390.743394.118389.641377.389341.206346.967335.857342.865380.238419.801408.81290.203264.452243.108230.66165.934142.54102.66597.905114.69101.27386.67970.7771.85157.82244.30546.72640.66836.404NANA18.059NA
us-gaap:LongTermDebtCurrent ▁▁▆▃▃█▂▂▂▂▂▂▂▂▂▂▂▂▂▄▃▃▂▂▂▂▂▁▁▁▁▁▁▁▁▁▁▁▁▁13.28111.911153.47850.85848.465196.07243.67941.28738.89536.50334.11233.26433.26433.8334.8334.80534.80534.80534.80577.59873.4169.22345.3641.99638.65235.30926.96513.3211.4459.5715.19513.30513.3059.5557.6812.010.08.06.756.75NANA9.984NA
us-gaap:OperatingLeaseLiabilityCurrent ▁▁▁███▇▇▆▇19.25418.69618.91630.43330.03829.67129.1428.0127.57827.984NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:OtherAccruedLiabilitiesCurrent ▅▅▆█▇▃▅▄▄▄▅▄▄▄▅▄▄▃▄▃▄▃▂▂▂▂▁171.867161.04178.453251.177210.123104.358141.16139.754138.119134.972151.226114.414127.786128.473141.213111.403132.944106.046122.958104.513124.788108.66372.80656.96268.19761.72230.956NANANA25.748NANANANANANANANANANANANANA
us-gaap:OtherLiabilitiesCurrent ▄▃▂█▄▃▁▂▂▁▅▄▇█▆▅▇▅▆5.5644.7073.08510.9225.9594.3462.4432.783.4682.0237.0875.2849.77110.4128.4887.369.1387.6778.283NANA42.03217.7NANANA8.635NANANA9.834NANANANANANANANANANANANANA
us-gaap:TaxesPayableCurrent ▁▄█▄0.1096.0816.3457.338NANANA25.3188.0476.0533.04111.3128.9664.4391.0127.38410.9397.5420.5270.1214.6774.0397.367NANANA0.1NANANANANANANANANANANANANANANANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-30
 us-gaap:LiabilitiesNoncurrent us-gaap:ConsolidatedEntities srt:ParentCompany▁▁▇██1689.3571728.1063045.9813159.5293093.36NA3162.782NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:LongTermDebt ▃▃▇▇▇▇▇▇▇▇▇▇▇▇▇▇▇▇▇███▅▅▄▅▃▃▂▂▂▂▂▂▁▁▁1456.4731496.1233122.4263118.1013126.913140.8923149.0993174.9223245.7633258.2123193.4873215.2263221.0523241.9183239.8883268.9513275.2783281.3823287.8093661.4773651.7933566.7922240.7442134.3131953.2072053.991096.271029.322567.257663.196617.136585.26569.581569.653473.318296.632298.573NA277.459NANANANANA
us-gaap:LongTermDebtNoncurrent ▃▄▇▇▇▇▇▇▇▇▇▇▇▇▇▇▇▇▇███▅▅▄▅▃▃▂▂▂▂▂▂▁▁▁▁▁1443.1921484.2122968.9483067.2433078.4452944.823105.423133.6353206.8683221.7093159.3753181.9623187.7883208.0883205.0583234.1463240.4733246.5773253.0043583.8793578.3833497.5692195.3842092.3171914.5552018.6811069.3051016.002555.812653.626601.941571.955556.276560.098465.638284.632288.573299.514270.709NANANANANA
us-gaap:DeferredIncomeTaxLiabilitiesNet ▄▃▁█▆73.14468.67850.017104.35190.688NA71.86NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:OtherLiabilitiesNoncurrent ▆▆▆▇▅▆▆▆▆▆▇▇▇█▇██▇▇▇▇▆▄▄▄▄▃▂▂▂▂▂▂▁▁▁▁▁▁▂118.363124.616133.412153.812116.553126.767128.587125.285124.31122.188154.267165.663160.809168.633166.434179.329171.678165.995164.859147.15151.628124.49278.60287.00882.21881.38243.50630.57920.95919.86519.34718.24618.1113.62812.3766.5747.2316.3325.25424.844NANA2.229NA
us-gaap:OperatingLeaseLiabilityNoncurrent ▁▁▁█▇█████89.10783.73184.029477.355474.218474.746502.252478.894490.903504.753NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearTwo NANA21.03255.565NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearThree NANA17.33650.87NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFour NANA14.83248.471NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFive NANA12.101NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive NANA52.866NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-30
us-gaap:StockholdersEquity ▇▇▆█▇▇▇▇▇▇▇████▇▇▇▇▇▇█▅▅▅▄▃▃▃▂▂▂▂▂▂▁▁▁▁▁2356.5862297.9991899.4562606.6392503.3382464.1672505.3812420.6912422.3462403.3432333.3072680.2492653.3012701.6192572.8712487.5852376.862235.9332167.7242242.1212436.282562.871683.0281670.5521666.3041249.787880.965886.576895.222496.15480.71466.533450.84436.859432.55253.563246.344100.6896.36576.986NANA25.107NA
us-gaap:CommonStockValue ██████████████████████▆▆▆▅▄▄▄▃▃▃▃▃▃▂▂▁▁0.8890.8870.880.8790.8790.8780.8770.8770.8760.8760.8740.8740.8730.8730.8710.870.870.8690.8670.8660.8650.8650.7070.7070.7060.6540.5920.5920.5920.5020.5010.50.50.50.4990.4180.4170.3210.321NANANANANA
us-gaap:AdditionalPaidInCapitalCommonStock ████████████████████▇▇▄▄▄▃▁2611.8522597.7812580.3272572.5872567.052561.2182557.6422554.8082550.6532546.7592541.9872535.3772530.0832522.7452517.5452512.9512508.0642499.762496.2882488.8032481.8972475.3831572.9721574.7081567.3041230.856847.301NANANANANANANANANANANANANANANANANA
us-gaap:RetainedEarningsAccumulatedDeficit ▁▁▁▇▇▇▆▆▆▆▅██▇▇▆▆▅▅▅▆▅▅▅▅▄▄▄▄▄▄▃▃▃▃▃▃▃▃-256.155-300.669-310.386473.286436.288395.209361.746373.0330.434282.294252.823584.46538.228479.392428.573358.944313.326263.696220.139178.321296.129239.684213.996179.43149.88116.036101.44279.31353.91131.4618.4026.122-8.242-20.439-24.177-28.542-34.992-40.901-44.58NANANANANA
us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax NANA-371.365-440.113-500.879-493.138-414.884-507.994-459.617-426.586-462.377-440.462-415.883-301.391-374.118-385.18-445.4-528.392-549.57-425.869-342.611-153.062-104.647-84.293-51.586-97.759-68.37-36.857NANA0.0NANANANANANANANANANANANANA
us-gaap:AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue █▆▅▄▄▃▁▂▃▅▁▄▆▆▃▃▆▆▆▆▆▆▅▄▄▂▁▁9.0317.0346.2465.4715.8084.9792.9854.0394.1826.1012.7285.2257.1296.9194.464.1757.4367.3967.3567.1456.8886.9565.8965.3275.3553.8943.0832.805NANANANANANA0.5760.521NANANANANANANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-30
us-gaap:NetCashProvidedByUsedInOperatingActivities ▄▄▇██▃▅▄▄▃▅▄▆▄▅▄▅▃▅▄▅▃▅▃▄▂▃▃▂▂▂▂▃▂▂▂▂▂▁▂▂▂▂90.47776.037186.567207.296219.39845.546119.37584.84385.01343.673127.89768.869144.96472.35128.22683.745130.59257.014101.82176.799124.19458.66498.31850.94472.91918.22246.2439.80721.8937.34620.68716.92527.7830.16710.56312.7895.6114.935-28.2353.9912.9880.592.722NA
us-gaap:NetCashProvidedByUsedInInvestingActivities ▁█▁▁▁▁▁▂▁▁▁▁▁▁▁▁-49.4791368.603-72.185-69.722-65.771-74.161-63.94940.79-67.881-110.101-98.47-88.745-95.063-78.686-103.35-86.867NANANANANANANANA-308.984-104.602NANA-24.164-47.924-50.931-36.094-120.681-35.272-294.638-119.435-16.348-94.223-37.753-3.903-183.13-0.784-0.454NA
us-gaap:NetCashProvidedByUsedInFinancingActivities █▁█████▇████████-34.367-1648.489-2.935-12.555-22.579-13.43-29.468-74.707-15.95558.503-26.593-10.185-25.818-4.734-32.532-4.319NANANANANANANANA229.1632.604NANA272.77243.25230.77915.8040.52285.481321.755-1.811130.07329.01125.852-2.29175.576-0.398-0.133NA
us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect ▅▁▆██▄▆▆▅▅▅6.631-199.78239.995126.763130.935-43.18831.29249.359-0.143-6.8261.582NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-30
us-gaap:AmortizationOfFinancingCosts ▂▄▇██▇▇▇▇▇▇▆▆▆▆▆▆▆▆▇▇▅▄▄▄▄▂▂▂▂▂▂▂▁▂▂▂▂▂▁0.8171.6462.943.3143.3323.053.0613.0392.9992.8882.6932.6392.5992.5252.5152.4952.4492.3962.612.7582.8092.1471.6921.7991.751.4680.9690.8950.690.6440.5780.5760.570.540.6380.6450.6370.5870.5870.348NANANANA
us-gaap:DeferredIncomeTaxExpenseBenefit ▄▄▆█▆▆▂▄▃▃▁▄▂▃█▆▇▃▄▅▅▅▇▄▄█▄▂▅▄▃▄▄▄▂▄▄▃▁▃▃▃▃4.4953.96211.30519.75810.75911.286-3.375.3550.461-0.666-7.9762.24-5.8751.89720.212.3215.0892.0072.799.0367.7369.08514.6884.2435.45819.2242.57-4.4526.8662.231-0.4625.1532.9372.455-5.2913.2843.3081.546-6.333-0.337-0.0050.233-0.036NA
us-gaap:IncreaseDecreaseInAccountsReceivable ▇▅▄▆▃▆▃▆█▇▁█▆█▅▆▇▇▆▄▇▆▄█▆▆▃▇▆▆▆▆▅▇▅▆▆▆▅▆▅▅▅10.4822.49-9.9485.674-13.8942.828-13.8965.28715.68911.98-26.43117.1487.31118.793-0.1116.2779.94512.4593.139-6.40315.2333.749-3.95118.4633.4856.957-10.28510.0926.6098.6942.8647.8211.0359.522-2.2938.4074.2656.3540.93.166-1.0242.009-0.028NA
us-gaap:NetCashProvidedByUsedInOperatingActivities ▄▄▇██▃▅▄▄▃▅▄▆▄▅▄▅▃▅▄▅▃▅▃▄▂▃▃▂▂▂▂▃▂▂▂▂▂▁▂▂▂▂90.47776.037186.567207.296219.39845.546119.37584.84385.01343.673127.89768.869144.96472.35128.22683.745130.59257.014101.82176.799124.19458.66498.31850.94472.91918.22246.2439.80721.8937.34620.68716.92527.7830.16710.56312.7895.6114.935-28.2353.9912.9880.592.722NA
us-gaap:NetIncomeLoss ██▁███▇███▅████████▆█████████████▇▇▇▇▇▇▇▇▇▇▇44.5149.717-783.67236.99841.07933.463-11.25442.56648.1429.471-331.63746.23258.83650.81969.62945.61849.6334.95841.818-117.80856.44525.68834.56629.5533.84414.59422.12925.40222.45113.05812.2814.36412.1973.7384.3656.455.9093.679-15.9093.123-21.857-0.2490.5241.566
us-gaap:ProfitLoss ██▁███▇███▅████████▆████████45.66410.479-782.54137.56141.71434.067-10.31342.72348.20129.511-331.52946.27958.8950.87469.68945.48949.63834.77341.426-118.2155.59125.36933.95229.08633.84414.59422.12925.402NANANANANANANANANANANANANANANANA
us-gaap:ShareBasedCompensation ▅▄▄▄▄▃▃▃▃▄▃▃▄▄▃▃▄▄▄▄▄▄▄▃▃▃▃▃▃▂▂▂▂▂▂▂▂▂▁▂█▄9.0317.0346.2465.4715.8084.9792.9854.0394.1826.1012.7285.2257.1296.9194.464.1757.4367.3967.3567.1456.8886.9565.8965.3275.3553.8943.0832.8052.4061.7641.5051.3311.8120.6010.5760.50.60.578-2.5230.019.86.1NANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-30
us-gaap:NetCashProvidedByUsedInInvestingActivities ▁█▁▁▁▁▁▂▁▁▁▁▁▁▁▁-49.4791368.603-72.185-69.722-65.771-74.161-63.94940.79-67.881-110.101-98.47-88.745-95.063-78.686-103.35-86.867NANANANANANANANA-308.984-104.602NANA-24.164-47.924-50.931-36.094-120.681-35.272-294.638-119.435-16.348-94.223-37.753-3.903-183.13-0.784-0.454NA
us-gaap:PaymentsToAcquirePropertyPlantAndEquipment ▅▅▃▆▆▆▇▆▆▆███▆▇▇▆▅▅▇██▇▇▆▅▄▃▃▃▂▃▂▂▂▁▁▁▁▁▁▁▁54.27158.68220.78163.75462.53369.54781.9663.59469.8869.24891.47388.43491.22870.32780.3676.29666.97250.54957.51172.24387.62990.08975.20678.80669.15652.87942.56427.35721.67421.64918.26320.96916.94512.76413.0846.8923.7083.9112.7813.5652.4280.7840.848NA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-30
us-gaap:NetCashProvidedByUsedInFinancingActivities █▁█████▇████████-34.367-1648.489-2.935-12.555-22.579-13.43-29.468-74.707-15.95558.503-26.593-10.185-25.818-4.734-32.532-4.319NANANANANANANANA229.1632.604NANA272.77243.25230.77915.8040.52285.481321.755-1.811130.07329.01125.852-2.29175.576-0.398-0.133NA
us-gaap:ProceedsFromIssuanceOfLongTermDebt ▁▇█▁0.0425.0475.00.0NANANANANANANANANANANANANANA0.00.00.01480.00.0275.00.0875.0235.0300.00.07.50.00.00.0150.0151.0630.00.025.0147.4850.0NANANANA
 us-gaap:RepaymentsOfLongTermDebt us-gaap:CreditFacility achc:TermLoanAFacilityNANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:RepaymentsOfLongTermDebt us-gaap:CreditFacility,us-gaap:DisposalGroupClassification,us-gaap:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations,us-gaap:SubsequentEventType achc:TermLoanAFacility,us-gaap:DiscontinuedOperationsDisposedOfBySale,achc:UKSales,us-gaap:SubsequentEventNANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:RepaymentsOfLongTermDebt us-gaap:DebtInstrument achc:TermLoanBFacilityTrancheBFourNANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:RepaymentsOfLongTermDebt us-gaap:DebtInstrument achc:TrancheB4PriorCreditFacilityNANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:RepaymentsOfLongTermDebt us-gaap:DebtInstrument achc:TrancheB4RepricingAmendmentNANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:RepaymentsOfLongTermDebt us-gaap:DebtInstrument,us-gaap:DisposalGroupClassification,us-gaap:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations,us-gaap:SubsequentEventType achc:TrancheB4RepricingAmendment,us-gaap:DiscontinuedOperationsDisposedOfBySale,achc:UKSales,us-gaap:SubsequentEventNANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-30
 us-gaap:DebtInstrumentInterestRateStatedPercentage us-gaap:DebtInstrument achc:FivePointZeroZeroZeroPercentSeniorNotesDueTwoThousandTwentyNineNANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:DebtInstrumentInterestRateStatedPercentage us-gaap:DebtInstrumentRedemptionPeriod achc:RedemptionOfFivePointTwoSixFivePercentageSeniorNotesNANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:DebtInstrumentInterestRateStatedPercentage us-gaap:DebtInstrumentRedemptionPeriod achc:RedemptionOfSixPointFiveZeroZeroPercentageSeniorNotesNANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA

Common Stock Value

us-gaap:CommonStockValue

us-gaap:CommonStockValue


Common
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-31
Value889000.0887000.0880000.0879000.0879000.0878000.0877000.0877000.0876000.0876000.0874000.0874000.0873000.0873000.0871000.0870000.0870000.0869000.0867000.0866000.0865000.0865000.0707000.0707000.0706000.0654000.0592000.0592000.0592000.0502000.0501000.0500000.0500000.0500000.0499000.0418000.0417000.0321000.0321000.0
Percentage of CommonStockValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.10.10.10.10.1

Weighted Average Number Of Diluted Shares Outstanding

us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding

us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding


Weighted
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-09-302012-06-302012-03-312011-09-302011-06-302011-03-312010-09-30
Value908988888787878787878787878686868371686259515050505041363217171717
Percentage of WeightedAverageNumberOfDilutedSharesOutstanding100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Weighted Average Number Of Shares Outstanding Basic

us-gaap:WeightedAverageNumberOfSharesOutstandingBasic

us-gaap:WeightedAverageNumberOfSharesOutstandingBasic


Weighted
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-09-302012-06-302012-03-312011-09-302011-06-302011-03-312010-09-30
Value888887878787878787878787868686868270686259515050504941363217171717
Percentage of WeightedAverageNumberOfSharesOutstandingBasic100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount

us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount

us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount


Antidilutive
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-09-302012-06-302012-03-31
Value400000.0700000.02000000.02400000.02900000.01900000.01900000.02600000.01600000.01600000.02000000.01000000.01600000.01200000.0200000.01200000.0800000.0300000.0300000.0900000.0500000.0600000.0500000.0400000.0400000.0600000.0400000.0600000.0400000.0
Percentage of AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Earnings Per Share Basic

us-gaap:EarningsPerShareBasic

us-gaap:EarningsPerShareBasic


Earnings
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-30
Value0.50.11-8.910.420.470.38-0.130.490.550.34-3.80.530.670.580.80.520.570.40.48-1.360.650.310.490.420.50.230.380.430.430.260.250.290.240.070.090.150.160.11-0.780.18-1.24-0.010.030.09
Percentage of EarningsPerShareBasic100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Earnings Per Share Diluted

us-gaap:EarningsPerShareDiluted

us-gaap:EarningsPerShareDiluted


Earnings
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-30
Value0.490.11-8.780.420.460.38-0.130.480.550.34-3.80.530.670.580.80.520.570.40.48-1.360.650.310.490.420.490.230.370.430.430.260.240.290.240.070.10.150.160.11-0.780.18-1.24-0.010.030.09
Percentage of EarningsPerShareDiluted100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Income Loss From Continuing Operations Per Basic Share

us-gaap:IncomeLossFromContinuingOperationsPerBasicShare

us-gaap:IncomeLossFromContinuingOperationsPerBasicShare


Income
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-30
Value0.50.250.510.510.340.24-0.150.280.310.160.49-1.360.650.310.490.420.50.230.370.430.430.260.250.290.240.080.090.160.170.1-0.720.21-1.23-0.010.060.09
Percentage of IncomeLossFromContinuingOperationsPerBasicShare100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Income Loss From Continuing Operations Per Diluted Share

us-gaap:IncomeLossFromContinuingOperationsPerDilutedShare

us-gaap:IncomeLossFromContinuingOperationsPerDilutedShare


Income
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-30
Value0.490.250.50.50.340.23-0.150.280.310.150.49-1.360.650.310.490.420.490.230.370.430.430.260.250.290.240.080.10.160.170.1-0.720.21-1.23-0.010.060.09
Percentage of IncomeLossFromContinuingOperationsPerDilutedShare100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Comprehensive Income Net Of Tax

us-gaap:ComprehensiveIncomeNetOfTax

us-gaap:ComprehensiveIncomeNetOfTax


Comprehensive
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-30
Value44381-714.9249733-44.79181-5.8111565-353.55221-55.6561238010513256-81.883-201.066-133.104-22.72714-3.15780-14.795-9.384-11.455
Percentage of ComprehensiveIncomeNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax7.669.1-132.111.74.4-5.710.5-0.71.98.6-47.52.8-7.316.611.114.818.58.3-11.6-27.0-17.4-3.62.9-0.617.3-4.0-3.2-3.8

Comprehensive Income Net Of Tax Attributable To Noncontrolling Interest

us-gaap:ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest

us-gaap:ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest


Comprehensive
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-30
Value1150000.0762000.01131000.0563000.0635000.0604000.0941000.0157000.061000.040000.0108000.047000.054000.055000.060000.0-129000.08000.0-185000.0-392000.0-402000.0-854000.0-319000.0-614000.0-464000.0
Percentage of ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.20.10.20.10.10.10.10.00.00.00.00.00.00.00.0-0.00.0-0.0-0.1-0.1-0.1-0.1-0.1-0.1

Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest

us-gaap:ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest

us-gaap:ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest


Comprehensive
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-30
Value45381-713.7939833-44.18782-5.6541565-353.44421-55.6021238010513255-82.275-201.468-133.958-23.04613-3.62180-14.795-9.384-11.45522131214
Percentage of ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax7.869.3-131.911.84.5-5.610.6-0.71.98.6-47.52.9-7.316.711.114.718.58.2-11.7-27.0-17.5-3.72.7-0.717.3-4.0-3.2-3.810.26.36.57.5

Costs And Expenses

us-gaap:CostsAndExpenses

us-gaap:CostsAndExpenses


Costs
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-30
Value517521-325.78788700484-251.008727729
Percentage of CostsAndExpenses100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax88.894.7-60.294.693.361.9-32.293.692.4

Gains Losses On Extinguishment Of Debt

us-gaap:GainsLossesOnExtinguishmentOfDebt

us-gaap:GainsLossesOnExtinguishmentOfDebt


Gains
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302016-12-312016-09-302015-12-312015-09-302014-06-302013-12-312013-09-302013-06-302013-03-31
Value0.0-24.65-3.9620.0-3.271-0.8750.00.0-0.940.00.0-0.81-0.842-3.411-0.839-9.9790.00.00.00.0-9.35
Percentage of GainsLossesOnExtinguishmentOfDebt0.0100.0100.00.0100.0100.00.00.0100.00.00.0100.0100.0100.0100.0100.00.00.00.00.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.0-4.5-0.70.0-0.4-0.10.00.0-0.10.00.0-0.1-0.1-0.5-0.2-2.00.00.00.00.0-5.8

us-gaap:GainsLossesOnExtinguishmentOfDebt us-gaap:DebtInstrument

achc:FivePointZeroZeroZeroPercentSeniorNotesDueTwoThousandTwentyNine


Gains
Period End2020-10-14
Value2.9
Percentage of GainsLossesOnExtinguishmentOfDebt0.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax achc:FivePointZeroZeroZeroPercentSeniorNotesDueTwoThousandTwentyNine0.0

achc:TrancheB3CreditFacility


Gains
Period End2020-10-14
Value2.9
Percentage of GainsLossesOnExtinguishmentOfDebt0.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax achc:TrancheB3CreditFacility0.0

us-gaap:GainsLossesOnExtinguishmentOfDebt us-gaap:DebtInstrument, us-gaap:LongtermDebtType

achc:RepricingFacilitiesAmendments, achc:AmendedAndRestatedCreditFacility


Gains
Period End2020-11-132018-03-22
Value1.00.9
Percentage of GainsLossesOnExtinguishmentOfDebt0.00.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.00.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax achc:RepricingFacilitiesAmendments achc:AmendedAndRestatedCreditFacility0.00.0

achc:RepricingFacilitiesAmendments, achc:PriorCreditFacility


Gains
Period End2020-11-13
Value1.0
Percentage of GainsLossesOnExtinguishmentOfDebt0.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax achc:RepricingFacilitiesAmendments achc:PriorCreditFacility0.0

us-gaap:GainsLossesOnExtinguishmentOfDebt us-gaap:DebtInstrumentRedemptionPeriod

achc:RedemptionOfFivePointTwoSixFivePercentageSeniorNotes


Gains
Period End2021-03-17
Value3.3
Percentage of GainsLossesOnExtinguishmentOfDebt0.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax achc:RedemptionOfFivePointTwoSixFivePercentageSeniorNotes0.0

achc:RedemptionOfSixPointFiveZeroZeroPercentageSeniorNotes


Gains
Period End2021-03-01
Value10
Percentage of GainsLossesOnExtinguishmentOfDebt0.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax achc:RedemptionOfSixPointFiveZeroZeroPercentageSeniorNotes0.0

us-gaap:GainsLossesOnExtinguishmentOfDebt us-gaap:LongtermDebtType

achc:PriorCreditFacility


Gains
Period End2021-03-31
Value10
Percentage of GainsLossesOnExtinguishmentOfDebt-44.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax2.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax achc:PriorCreditFacility0.0

Income Loss From Continuing Operations

us-gaap:IncomeLossFromContinuingOperations

us-gaap:IncomeLossFromContinuingOperations


Income
Period End2021-06-302021-03-312020-06-302020-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-30
Value4422271841-117.8085625332933142225
Percentage of IncomeLossFromContinuingOperations100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax7.64.13.62.35.9-15.87.44.06.85.97.33.97.68.4

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

us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest

us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest


Income
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-30
Value642949444939-10.248495936-341.3365569486061664842-115.814733252414921343337201922206.7327.50610105.033-23.4714.586-18.946-0.5281.0261.821
Percentage of IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax11.25.39.15.46.75.1-1.36.47.64.8-45.97.29.06.58.48.69.27.16.0-15.59.65.210.68.510.75.711.810.916.910.110.511.711.14.26.610.010.05.5-31.17.3-29.8-3.17.511.5

us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest us-gaap:ConsolidatedEntities

srt:ParentCompany


Income
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value5824574479-19.439-20.298-23.148-24.32-25.679-21.009-22.45-22.594-22.476-19.94-20.108-23.337
Percentage of IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest89.482.8115.898.6159.3-48.8198.1-46.7-40.7-69.66.2-40.8-32.6-46.7-32.9-32.7-35.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax10.04.410.55.310.6-2.5-2.6-3.0-3.1-3.4-2.8-3.0-3.0-3.0-2.8-2.8-3.3
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax srt:ParentCompany0.04.80.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest

us-gaap:IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest

us-gaap:IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest


Income
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-30
Value452346453021-12.19224261341-118.21552534293314222522131214124.0544.4886.5886.1013.368-14.6553.722-21.735-0.2571.0081.649
Percentage of IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax7.84.28.55.44.12.7-1.63.23.41.85.9-15.97.24.17.06.07.33.97.68.410.26.36.57.66.72.53.96.46.13.7-19.45.9-34.2-1.57.310.4

Income Tax Expense Benefit

us-gaap:IncomeTaxExpenseBenefit

us-gaap:IncomeTaxExpenseBenefit


Income
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-30
Value196.204197.1668.2165.7890.0656.837117.36-9.8078.75710-2.786-9.051516131.0122.396187.111812156.613127.703147.7757.5367.7418.022.6783.0183.7233.9191.665-8.7650.8642.789-0.2710.0180.172
Percentage of IncomeTaxExpenseBenefit100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax3.31.13.60.91.10.70.00.91.51.0-1.31.21.4-0.4-1.22.22.32.00.10.32.41.13.82.63.41.84.32.56.83.84.04.14.41.72.63.63.91.8-11.61.44.4-1.60.11.1

Interest Income Expense Net

us-gaap:InterestIncomeExpenseNet

us-gaap:InterestIncomeExpenseNet


Interest
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-31
Value-16687000.0-29027000.0-39041000.0-37553000.0-38726000.0-42785000.0-43710000.0-46644000.0-48610000.0-48130000.0-47704000.0-46651000.0-45812000.0-45243000.0-45230000.0-44515000.0-43505000.0-42757000.0-46010000.0-48843000.0-48758000.0-37714000.0-28810000.0-27737000.0-28049000.0-22146000.0-14716000.0-14068000.0-9730000.0-9707000.0-9578000.0-9465000.0-9445000.0-8762000.0
Percentage of InterestIncomeExpenseNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-2.9-5.3-7.2-4.5-5.2-5.5-5.6-6.0-6.2-6.3-6.4-6.1-6.0-6.1-6.2-6.2-6.1-6.3-6.5-6.6-6.4-6.0-5.8-5.7-6.1-5.9-5.0-4.6-4.4-4.7-5.0-5.0-5.2-5.4

Net Income Loss

us-gaap:NetIncomeLoss

us-gaap:NetIncomeLoss


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-30
Value449.717-783.672364133-11.254424829-331.6374658506945493441-117.808562534293314222522131214123.7384.3656.455.9093.679-15.9093.123-21.857-0.2490.5241.566
Percentage of NetIncomeLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax7.61.8-144.84.45.54.3-1.45.56.13.9-44.66.17.76.89.66.46.95.15.9-15.87.44.17.06.07.33.97.58.410.26.36.57.56.72.33.86.35.94.0-21.15.0-34.4-1.53.89.9

us-gaap:NetIncomeLoss us-gaap:ConsolidatedEntities

srt:ParentCompany


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value4019-353.393381234-10.313424829-331.529465850694549
Percentage of NetIncomeLoss90.7197.745.1102.829.4101.891.6100.4100.1100.1100.0100.1100.1100.1100.199.7100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax6.93.5-65.34.61.64.4-1.35.56.13.9-44.66.17.76.99.66.36.9
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax srt:ParentCompany0.03.80.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:NetIncomeLoss us-gaap:StatementEquityComponents

us-gaap:RetainedEarnings


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-31
Value449.717-783.672364133-11.254424829-331.6374658506945493441-117.80856253429331422
Percentage of NetIncomeLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax7.61.8-144.84.45.54.3-1.45.56.13.9-44.66.17.76.89.66.46.95.15.9-15.87.44.17.06.07.33.97.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:RetainedEarnings0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Net Income Loss Attributable To Noncontrolling Interest

us-gaap:NetIncomeLossAttributableToNoncontrollingInterest

us-gaap:NetIncomeLossAttributableToNoncontrollingInterest


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-30
Value1150000.0762000.01131000.0563000.0635000.0604000.0941000.0157000.061000.040000.0108000.047000.054000.055000.060000.0-129000.08000.0-185000.0-392000.0-402000.0-854000.0-319000.0-614000.0-464000.0
Percentage of NetIncomeLossAttributableToNoncontrollingInterest100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.20.10.20.10.10.10.10.00.00.00.00.00.00.00.0-0.00.0-0.0-0.1-0.1-0.1-0.1-0.1-0.1

Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax

us-gaap:OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax

us-gaap:OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-30
Value0.0-4.2610882-7.183-122.0135-59.975-50.61844-44.743-31.959-143.5999218699227-126.244-89.645-213.468-48.415-24.18-32.70746-29.389-29.349-36.857
Percentage of OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax0.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.0-0.820.09.9-1.0-15.617.4-7.7-6.45.8-6.0-4.2-18.812.52.69.712.94.0-18.0-12.0-27.8-7.7-4.9-6.710.0-7.9-10.0-12.2

us-gaap:OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax us-gaap:StatementEquityComponents

us-gaap:AccumulatedDefinedBenefitPlansAdjustment


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value0.00.033-0.409-0.2150.0180.321-0.1460.0560.047-0.0410.110.060.271-0.174-0.036-0.192
Percentage of OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax0.0-0.8-0.4-0.3-0.3-0.3-0.1-0.1-0.1-0.1-0.2-0.2-0.2-0.2-0.2-0.3
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.00.0-0.1-0.00.00.0-0.00.00.0-0.00.00.00.0-0.0-0.0-0.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:AccumulatedDefinedBenefitPlansAdjustment0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:AccumulatedTranslationAdjustment


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value0.0-4.29310882-7.201-122.321136-60.031-50.66544-44.853-32.019-143.879218699227
Percentage of OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax0.0100.8100.4100.3100.3100.3100.1100.1100.1100.1100.2100.2100.2100.297.2100.3100.4100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.0-0.820.09.9-1.0-15.617.4-7.7-6.45.9-6.0-4.2-18.812.52.59.712.94.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:AccumulatedTranslationAdjustment0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Other Comprehensive Income Loss Net Of Tax

us-gaap:OtherComprehensiveIncomeLossNetOfTax

us-gaap:OtherComprehensiveIncomeLossNetOfTax


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-30
Value0.03716860-7.741-78.25493-48.377-33.03135-21.915-24.579-114.4927211608221-123.701-83.258-189.549-48.415-20.354-32.70746-29.389-31.513-36.857
Percentage of OtherComprehensiveIncomeLossNetOfTax0.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.067.412.77.3-1.0-10.011.9-6.2-4.24.7-2.9-3.2-15.09.81.58.411.63.1-17.6-11.2-24.7-7.7-4.1-6.710.0-7.9-10.7-12.2

us-gaap:OtherComprehensiveIncomeLossNetOfTax us-gaap:StatementEquityComponents

us-gaap:AccumulatedOtherComprehensiveIncome


Other
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-31
Value3716860-7.741-78.25493-48.377-33.03135-21.915-24.579-114.4927211608221-123.701-83.258-189.549-48.415-20.354-32.70746-29.389-31.513
Percentage of OtherComprehensiveIncomeLossNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax67.412.77.3-1.0-10.011.9-6.2-4.24.7-2.9-3.2-15.09.81.58.411.63.1-17.6-11.2-24.7-7.7-4.1-6.710.0-7.9-10.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:AccumulatedOtherComprehensiveIncome0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Profit Loss

us-gaap:ProfitLoss

us-gaap:ProfitLoss


Profit
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-30
Value4510-782.541374134-10.313424829-331.5294658506945493441-118.215525332933142225
Percentage of ProfitLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax7.81.9-144.64.55.64.4-1.35.56.13.9-44.66.17.76.99.66.36.95.15.9-15.97.24.06.96.07.33.97.58.4

us-gaap:ProfitLoss us-gaap:ConsolidatedEntities

srt:ParentCompany


Profit
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value4019-353.393381234-10.313424829-331.529465850694549
Percentage of ProfitLoss88.4183.345.2101.228.9100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax6.93.5-65.34.61.64.4-1.35.56.13.9-44.66.17.76.99.66.36.9
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax srt:ParentCompany0.03.80.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Revenue From Contract With Customer Excluding Assessed Tax

us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax

us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-30
Value58255154183375078278077778976074376076574272471671567970274476762749548846137429430322020618919018216111410310091756363161315
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:ConsolidatedEntities

srt:ParentCompany


Revenue
Period End2021-06-302021-03-312020-12-312020-09-30
Value538509500509
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax92.492.492.461.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax92.492.492.461.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax srt:ParentCompany100.0100.0100.0100.0

us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments

us-gaap:OperatingSegments, achc:UnitedKingdomFacility


Revenue
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value285258273279267279272271272284279
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax34.234.535.035.834.535.435.836.535.837.137.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax34.234.535.035.834.535.435.836.535.837.137.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments achc:UnitedKingdomFacility100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OperatingSegments, achc:UnitedStatesFacilities


Revenue
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value547491509501509509487472488481462
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax65.865.565.064.265.564.664.263.564.262.962.3
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax65.865.565.064.265.564.664.263.564.262.962.3
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments achc:UnitedStatesFacilities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:MajorCustomers, us-gaap:StatementBusinessSegments

achc:Commercial, achc:UnitedStatesFacilities


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value178162156156140143138140146139141146147137
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax30.729.529.018.818.718.317.818.118.618.319.119.219.218.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax30.729.529.018.818.718.317.818.118.618.319.119.219.218.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax achc:Commercial achc:UnitedStatesFacilities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

achc:Medicaid, achc:UnitedStatesFacilities


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value282274270261245260256256255239225229225213
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax48.549.850.031.432.733.232.933.032.331.430.330.129.528.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax48.549.850.031.432.733.232.933.032.331.430.330.129.528.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax achc:Medicaid achc:UnitedStatesFacilities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

achc:Medicare, achc:UnitedStatesFacilities


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value9086859675727176737270736967
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax15.515.615.811.610.19.29.29.99.39.59.49.79.19.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax15.515.615.811.610.19.29.29.99.39.59.49.79.19.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax achc:Medicare achc:UnitedStatesFacilities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

achc:OtherPayor, achc:UnitedKingdomFacility


Revenue
Period End2020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-31
Value0.6880.5950.5420.6910.5660.430.2120.1151.474
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.10.10.10.10.10.10.00.00.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.10.10.10.10.10.10.00.00.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax achc:OtherPayor achc:UnitedKingdomFacility100.0100.0100.0100.0100.0100.0100.0100.0100.0

achc:OtherPayor, achc:UnitedStatesFacilities


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value6.9665.2495.6317.2837.3676.7267.6655.1664.6974.9944.7925.715.7377.329
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax1.21.01.00.91.00.91.00.70.60.70.60.80.71.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax1.21.01.00.91.00.91.00.70.60.70.60.80.71.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax achc:OtherPayor achc:UnitedStatesFacilities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

achc:SelfPayor, achc:UnitedKingdomFacility


Revenue
Period End2020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-31
Value262226242626262725
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax3.13.03.43.13.43.53.43.63.4
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax3.13.03.43.13.43.53.43.63.4
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax achc:SelfPayor achc:UnitedKingdomFacility100.0100.0100.0100.0100.0100.0100.0100.0100.0

achc:SelfPayor, achc:UnitedStatesFacilities


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value2322222622272630293130333336
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax4.04.14.23.13.03.53.43.93.84.24.14.44.45.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax4.04.14.23.13.03.53.43.93.84.24.14.44.45.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax achc:SelfPayor achc:UnitedStatesFacilities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

achc:UKPublicFundedSources, achc:UnitedKingdomFacility


Revenue
Period End2020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-31
Value258235246242252245245256253
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax31.031.431.431.232.032.332.333.534.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax31.031.431.431.232.032.332.333.534.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax achc:UKPublicFundedSources achc:UnitedKingdomFacility100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:ProductOrService, us-gaap:StatementBusinessSegments

achc:AcuteInpatientPsychiatricFacilities, achc:UnitedStatesFacilities


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value281267260259224239233233229216205208203195191187193
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax48.348.548.231.130.030.629.930.029.028.527.727.526.626.426.426.227.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax48.348.548.231.130.030.629.930.029.028.527.727.526.626.426.426.227.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax achc:AcuteInpatientPsychiatricFacilities achc:UnitedStatesFacilities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

achc:AdultCareFacilities, achc:UnitedKingdomFacility


Revenue
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value8076787976777473747577757471
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax9.710.210.110.29.89.99.89.99.89.910.410.510.49.9
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax9.710.210.110.29.89.99.89.99.89.910.410.510.49.9
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax achc:AdultCareFacilities achc:UnitedKingdomFacility100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

achc:EducationAndChildrensServices, achc:UnitedKingdomFacility


Revenue
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value4744464743464646464948454242
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax5.75.96.06.15.65.86.16.36.26.46.56.35.95.9
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax5.75.96.06.15.65.86.16.36.26.46.56.35.95.9
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax achc:EducationAndChildrensServices achc:UnitedKingdomFacility100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

achc:HealthCareFacilities, achc:UnitedKingdomFacility


Revenue
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value157137148151148155151151150159154148146141
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax18.918.318.919.419.119.719.920.319.820.820.820.520.419.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax18.918.318.919.419.119.719.920.319.820.820.820.520.419.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax achc:HealthCareFacilities achc:UnitedKingdomFacility100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

achc:OutpatientCommunitybasedFacilities, achc:UnitedStatesFacilities


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value2.2023.4345.4165.6595.3075.7585.2655.3925.3325.1045.8889.2831010
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.40.61.00.70.70.70.70.70.70.70.81.21.41.4
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.40.61.00.70.70.70.70.70.70.70.81.21.41.4
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax achc:OutpatientCommunitybasedFacilities achc:UnitedStatesFacilities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

achc:ResidentialTreatmentCenters, achc:UnitedStatesFacilities


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value7168707168706969747375727471717273
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax12.312.513.18.59.29.09.09.09.49.610.19.59.79.69.810.110.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax12.312.513.18.59.29.09.09.09.49.610.19.59.79.69.810.110.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax achc:ResidentialTreatmentCenters achc:UnitedStatesFacilities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

achc:SpecialtyTreatmentFacilities, achc:UnitedStatesFacilities


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value227211204211192193192201201193185198192184182183182
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax39.038.437.725.425.724.724.725.925.525.424.926.025.224.925.125.625.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax39.038.437.725.425.724.724.725.925.525.424.926.025.224.925.125.625.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax achc:SpecialtyTreatmentFacilities achc:UnitedStatesFacilities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:StatementBusinessSegments

achc:UnitedKingdomFacility


Revenue
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value285258273279267279272271272284279269263254238
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax34.234.535.035.834.535.435.836.535.837.137.737.336.735.535.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax34.234.535.035.834.535.435.836.535.837.137.737.336.735.535.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax achc:UnitedKingdomFacility100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

achc:UnitedStatesFacilities


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value582551541547491509501509509487472488481462454453461450
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax100.0100.0100.065.865.565.064.265.564.664.263.564.262.962.362.763.364.566.3
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax100.0100.0100.065.865.565.064.265.564.664.263.564.262.962.362.763.364.566.3
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax achc:UnitedStatesFacilities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Assets

us-gaap:Assets

us-gaap:Assets


Assets
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302010-12-31
Value456445266499710568336717687967286790678561726529650365846424634262286065602464526684669642794145392636272223214015921282122411621114108598360358645341226945
Percentage of Assets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:Assets us-gaap:ConsolidatedEntities

us-gaap:VariableInterestEntityPrimaryBeneficiary


Assetsus-gaap:
Period End2021-06-302021-03-312020-12-31
Value281269261
Percentage of Assets6.26.04.0
Percentage of Assets6.26.04.0
Percentage of Assets us-gaap:VariableInterestEntityPrimaryBeneficiary100.0100.0100.0

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

achc:CorporateReconcilingItemsAndEliminations, us-gaap:CorporateAndOther


Assetsus-gaap:
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312015-12-31
Value417294190230223251201217207208183210205216182201171
Percentage of Assets5.94.32.83.43.33.73.03.53.23.22.83.33.23.53.03.34.0
Percentage of Assets5.94.32.83.43.33.73.03.53.23.22.83.33.23.53.03.34.0
Percentage of Assets achc:CorporateReconcilingItemsAndEliminations us-gaap:CorporateAndOther100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OperatingSegments, achc:UnitedKingdomFacility


Assetsus-gaap:
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312015-12-31
Value25212436244326102472254326332175256825992765264726152537246524411045
Percentage of Assets35.535.736.437.936.737.538.835.339.340.042.041.241.240.740.640.524.4
Percentage of Assets35.535.736.437.936.737.538.835.339.340.042.041.241.240.740.640.524.4
Percentage of Assets us-gaap:OperatingSegments achc:UnitedKingdomFacility100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OperatingSegments, achc:UnitedStatesFacilities


Assetsus-gaap:
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312015-12-31
Value41664102408340374032399539503779375336943635356735213473341733823061
Percentage of Assets58.660.060.858.759.958.858.261.257.556.855.255.555.555.856.356.171.5
Percentage of Assets58.660.060.858.759.958.858.261.257.556.855.255.555.555.856.356.171.5
Percentage of Assets us-gaap:OperatingSegments achc:UnitedStatesFacilities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Liabilities

us-gaap:Liabilities

us-gaap:Liabilities


Liabilities
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302010-12-31
Value214921724544444342954220434042754335435038103820382138583829383638333812383941924235412525882465226023771342125369778674369666364855035034035231619220
Percentage of Liabilities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets47.148.069.962.562.962.863.163.563.964.161.758.558.858.659.660.561.662.863.765.063.461.660.559.557.665.560.458.643.861.360.759.959.559.756.058.058.077.876.771.444.7

us-gaap:Liabilities us-gaap:ConsolidatedEntities

us-gaap:VariableInterestEntityPrimaryBeneficiary


Liabilitiesus-gaap:
Period End2021-06-302021-03-312020-12-31
Value262626
Percentage of Liabilities1.21.20.6
Percentage of Assets0.60.60.4
Percentage of Assets us-gaap:VariableInterestEntityPrimaryBeneficiary9.39.710.0

Liabilities And Stockholders Equity

us-gaap:LiabilitiesAndStockholdersEquity

us-gaap:LiabilitiesAndStockholdersEquity


Liabilities
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302010-12-31
Value456445266499710568336717687967286790678561726529650365846424634262286065602464526684669642794145392636272223214015921282122411621114108598360358645341226945
Percentage of LiabilitiesAndStockholdersEquity100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Stockholders Equity

us-gaap:StockholdersEquity

us-gaap:StockholdersEquity


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302010-12-31
Value23562297189926062503246425052420242224032333268026532701257224872376223521672242243625621683167016661249880886895496480466450436432253246100967625
Percentage of StockholdersEquity100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets51.650.829.236.736.636.736.436.035.735.437.841.040.841.040.039.238.236.936.034.736.438.339.340.342.434.539.641.456.238.739.340.140.540.344.042.042.022.223.328.655.3

us-gaap:StockholdersEquity us-gaap:ConsolidatedEntities

srt:ParentCompany


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-31
Value20612013623640590246425052420242224032333268026532572
Percentage of StockholdersEquity87.587.632.824.623.6100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets45.244.59.69.08.636.736.436.035.735.437.841.040.840.0
Percentage of Assets srt:ParentCompany0.00.00.00.00.043.843.543.142.542.442.045.545.144.2

us-gaap:StockholdersEquity us-gaap:StatementEquityComponents

achc:ChangeInFairValueOfDerivativeInstruments


Stockholders
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-31
Value1346686824645235432316-12.8867.16716253440
Percentage of StockholdersEquity0.71.82.72.81.02.72.21.51.90.90.6-0.50.30.71.11.61.9
Percentage of Assets0.20.71.01.00.41.00.80.50.70.40.2-0.20.10.30.40.60.7
Percentage of Assets achc:ChangeInFairValueOfDerivativeInstruments0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:AccumulatedDefinedBenefitPlansAdjustment


Stockholders
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312015-12-312014-12-31
Value-11.95-5.085-4.87-4.888-5.209-1.753-1.809-1.856-1.815-4.388-4.448-4.719-4.545-6.608-6.416-6.087-6.0871.662-2.164
Percentage of StockholdersEquity-0.6-0.2-0.2-0.2-0.2-0.1-0.1-0.1-0.1-0.2-0.2-0.2-0.2-0.3-0.3-0.3-0.30.1-0.2
Percentage of Assets-0.2-0.1-0.1-0.1-0.1-0.0-0.0-0.0-0.0-0.1-0.1-0.1-0.1-0.1-0.1-0.1-0.10.0-0.1
Percentage of Assets us-gaap:AccumulatedDefinedBenefitPlansAdjustment0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:AccumulatedOtherComprehensiveIncome


Stockholders
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302013-12-312012-12-312011-12-312011-09-30
Value-371.365-440.113-500.879-493.138-414.884-507.994-459.617-426.586-462.377-440.462-415.883-301.391-374.118-385.18-445.4-528.392-549.57-425.869-342.611-153.062-104.647-84.293-51.586-97.759-68.37-36.8575318-24.177-44.58-28.671
Percentage of StockholdersEquity-19.6-16.9-20.0-20.0-16.6-21.0-19.0-17.7-19.8-16.4-15.7-11.2-14.5-15.5-18.7-23.6-25.4-19.0-14.1-6.0-6.2-5.0-3.1-7.8-7.8-4.26.03.8-5.6-46.3-37.2
Percentage of Assets-5.7-6.2-7.3-7.3-6.0-7.6-6.8-6.3-7.5-6.7-6.4-4.6-5.8-6.1-7.2-8.7-9.1-6.6-5.1-2.3-2.4-2.0-1.3-2.7-3.1-1.73.41.5-2.5-10.8-10.6
Percentage of Assets us-gaap:AccumulatedOtherComprehensiveIncome0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:AccumulatedTranslationAdjustment


Stockholders
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312015-12-312014-12-31
Value-373.101-481.608-564.155-556.954-434.633-570.702-510.671-460.006-504.528-459.675-427.656-283.786-376.74-394.816-464.63-557.035-584.081-106.309-66.206
Percentage of StockholdersEquity-19.6-18.5-22.5-22.6-17.3-23.6-21.1-19.1-21.6-17.2-16.1-10.5-14.6-15.9-19.5-24.9-26.9-6.3-7.5
Percentage of Assets-5.7-6.8-8.3-8.3-6.3-8.5-7.5-6.8-8.2-7.0-6.6-4.3-5.9-6.2-7.5-9.2-9.7-2.5-3.0
Percentage of Assets us-gaap:AccumulatedTranslationAdjustment0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:AdditionalPaidInCapital


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302013-12-312012-12-312011-12-312011-09-30
Value26112597258025722567256125572554255025462541253525302522251725122508249924962488248124751572157415671230847843840461456140105
Percentage of StockholdersEquity110.8113.0135.898.7102.5103.9102.1105.5105.3106.0108.994.695.493.497.8101.0105.5111.8115.2111.0101.996.693.594.394.198.596.295.193.996.1105.5145.9137.0
Percentage of Assets57.257.439.736.237.638.137.238.037.637.541.238.838.938.339.239.640.341.241.438.637.137.036.838.039.933.938.139.452.837.746.434.039.1
Percentage of Assets us-gaap:AdditionalPaidInCapital0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:CommonStock


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302013-12-312012-12-312011-12-312011-09-30
Value0.8890.8870.880.8790.8790.8780.8770.8770.8760.8760.8740.8740.8730.8730.8710.870.870.8690.8670.8660.8650.8650.7070.7070.7060.6540.5920.5920.5920.5010.4990.3210.176
Percentage of StockholdersEquity0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.10.10.10.10.10.10.30.2
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.10.10.1
Percentage of Assets us-gaap:CommonStock0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:RetainedEarnings


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302013-12-312012-12-312011-12-31
Value-256.155-300.669-310.3864734363953613733302822525845384794283583132632201782962392131791491161017918-24.177-44.58
Percentage of StockholdersEquity-10.9-13.1-16.318.217.416.014.415.413.611.710.821.820.317.716.714.413.211.810.28.012.29.412.710.79.09.311.58.93.8-5.6-46.3
Percentage of Assets-5.6-6.6-4.86.76.45.95.35.54.94.24.19.08.37.36.75.75.04.33.72.84.43.65.04.33.83.24.63.71.5-2.5-10.8
Percentage of Assets us-gaap:RetainedEarnings0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Assets Current

us-gaap:AssetsCurrent

us-gaap:AssetsCurrent


Assets
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302010-12-31
Value575528252375661050254253647145245049048950347146345942442739239239329437832532527422944915714514212721214087184621123616
Percentage of AssetsCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets12.611.738.810.68.97.57.98.06.96.77.37.57.57.77.37.37.47.07.16.15.95.96.99.18.39.012.310.728.212.211.912.311.419.614.314.431.413.727.313.537.3

us-gaap:AssetsCurrent us-gaap:ConsolidatedEntities

srt:ParentCompany


Assets
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302019-12-31
Value509469654591475427
Percentage of AssetsCurrent88.588.925.978.277.878.8
Percentage of Assets11.210.410.18.37.06.2
Percentage of Assets srt:ParentCompany0.00.00.00.00.07.4

us-gaap:VariableInterestEntityPrimaryBeneficiary


Assets
Period End2021-06-302021-03-312020-12-31
Value464135
Percentage of AssetsCurrent8.17.81.4
Percentage of Assets1.00.90.5
Percentage of Assets us-gaap:VariableInterestEntityPrimaryBeneficiary16.615.213.4

Cash And Cash Equivalents At Carrying Value

us-gaap:CashAndCashEquivalentsAtCarryingValue

us-gaap:CashAndCashEquivalentsAtCarryingValue


Cash
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302009-12-312008-12-31
Value185178378338211811249243435048795767757943572730361150343894422777.2434.5694.0347.3999949111200.84611.2543.4568.0228.6146.4794.4890.045
Percentage of CashAndCashEquivalentsAtCarryingValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets4.14.05.84.83.11.21.81.40.60.60.80.71.20.91.01.21.30.70.90.40.50.50.31.20.91.04.22.017.40.60.40.30.79.25.01.920.50.214.80.50.00.019.00.00.00.0

us-gaap:CashAndCashEquivalentsAtCarryingValue us-gaap:ConsolidatedEntities

us-gaap:VariableInterestEntityPrimaryBeneficiary


Cash
Period End2021-06-302021-03-312020-12-31
Value201815
Percentage of CashAndCashEquivalentsAtCarryingValue11.310.44.0
Percentage of Assets0.50.40.2
Percentage of Assets us-gaap:VariableInterestEntityPrimaryBeneficiary7.56.95.8

Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents


Cash
Period End2020-12-312019-12-312018-12-31
Value3789930
Percentage of CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents100.0100.0100.0
Percentage of Assets5.81.40.5

Accounts Receivable Net Current

us-gaap:AccountsReceivableNetCurrent

us-gaap:AccountsReceivableNetCurrent


Accounts
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302010-12-31
Value286276273333325339339350346331318345329325296295288276263277285276216214182172118130110104959385786354454335255.469
Percentage of AccountsReceivableNetCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets6.36.14.24.74.85.14.95.25.14.95.25.35.14.94.64.74.64.64.44.34.34.15.15.24.64.85.36.17.08.27.88.07.77.36.59.17.89.78.59.412.0

us-gaap:AccountsReceivableNetCurrent us-gaap:ConsolidatedEntities

us-gaap:VariableInterestEntityPrimaryBeneficiary


Accounts
Period End2021-06-302021-03-312020-12-31
Value242118
Percentage of AccountsReceivableNetCurrent8.57.66.8
Percentage of Assets0.50.50.3
Percentage of Assets us-gaap:VariableInterestEntityPrimaryBeneficiary8.77.87.1

Inventory Net

us-gaap:InventoryNet

us-gaap:InventoryNet


Inventory
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312014-12-31
Value4666000.04579000.04851000.05092000.04712000.04882000.04759000.04337000.06076000.06115000.05055000.05021000.04733000.04772000.04787000.04698000.04917000.04723000.04633000.04758000.04819000.04779000.04681000.03249000.0
Percentage of InventoryNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.1

Other Assets Current

us-gaap:OtherAssetsCurrent

us-gaap:OtherAssetsCurrent


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302010-12-31
Value103736184738278938176819680120107929110410787767966757077413748282832192116151211109.6342.841
Percentage of OtherAssetsCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets2.31.60.91.21.11.21.11.41.21.11.31.51.21.81.71.51.51.71.81.41.11.21.61.81.82.11.91.83.02.22.42.81.82.01.72.52.22.62.53.66.3

us-gaap:OtherAssetsCurrent us-gaap:ConsolidatedEntities

us-gaap:VariableInterestEntityPrimaryBeneficiary


Other
Period End2021-06-302021-03-312020-12-31
Value1.2281.4541.461
Percentage of OtherAssetsCurrent1.22.02.4
Percentage of Assets0.00.00.0
Percentage of Assets us-gaap:VariableInterestEntityPrimaryBeneficiary0.40.50.6

Assets Noncurrent

us-gaap:AssetsNoncurrent us-gaap:ConsolidatedEntities

us-gaap:AssetsNoncurrent

srt:ParentCompany


Assets
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302019-12-31
Value364536613640360835713516
Percentage of AssetsNoncurrent100.0100.0100.0100.0100.0100.0
Percentage of Assets79.980.956.050.852.351.1
Percentage of Assets srt:ParentCompany0.00.00.00.00.061.1

Property Plant And Equipment Gross

us-gaap:PropertyPlantAndEquipmentGross

us-gaap:PropertyPlantAndEquipmentGross


Property
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302011-12-31
Value214121272072409339393899396536863707368835933571352535483395327731442997291829773456348818281725154013021130107645943739935433228424916512188
Percentage of PropertyPlantAndEquipmentGross100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets46.947.031.957.657.758.057.654.854.654.458.254.754.253.952.951.750.549.448.446.151.752.142.741.639.235.950.850.328.934.132.630.529.926.325.427.520.721.5

us-gaap:PropertyPlantAndEquipmentGross us-gaap:PropertyPlantAndEquipmentByType

us-gaap:BuildingAndBuildingImprovements


Property
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302011-12-31
Value16291502149028962747273827462555259125652423244324402475237022732189209720312081241821181277122911029368588293062842592272201981711127953
Percentage of PropertyPlantAndEquipmentGross76.170.671.970.869.870.269.269.369.969.567.468.469.269.869.869.469.670.069.669.970.060.769.971.371.671.975.977.066.664.965.064.166.369.868.767.765.060.3
Percentage of Assets35.733.222.940.840.240.839.938.038.237.839.337.437.537.636.935.835.234.633.732.336.231.629.929.728.125.838.638.719.222.121.219.519.818.317.518.613.513.0
Percentage of Assets us-gaap:BuildingAndBuildingImprovements0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:ConstructionInProgress


Property
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302011-12-31
Value12525521721425722925423119921629424919516517318116714615714614916919515911795664543474443321919151212
Percentage of PropertyPlantAndEquipmentGross5.812.010.55.26.55.96.46.35.45.98.27.05.64.75.15.55.34.95.44.94.34.910.79.27.77.35.94.39.510.811.112.29.87.07.79.210.014.6
Percentage of Assets2.75.63.33.03.83.43.73.42.93.24.83.83.02.52.72.92.72.42.62.32.22.54.63.83.02.63.02.12.73.73.63.72.91.82.02.52.13.1
Percentage of Assets us-gaap:ConstructionInProgress0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:Equipment


Property
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302011-12-31
Value23722422053450350251646246945644443443844040037735433531832035936114112711810273694339363329231913118.222
Percentage of PropertyPlantAndEquipmentGross11.110.610.613.112.812.913.012.612.712.412.412.212.412.411.811.511.311.210.910.810.410.47.77.47.77.96.56.59.49.19.29.59.08.37.98.39.69.3
Percentage of Assets5.25.03.47.57.47.57.56.96.96.77.26.66.76.76.26.05.75.55.35.05.45.43.33.13.02.83.33.22.73.13.02.92.72.22.02.32.02.0
Percentage of Assets us-gaap:Equipment0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:Land


Property
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302011-12-31
Value14914414444843042944843744645143044445146645044543241741143052983821420920116713213266665850494239241814
Percentage of PropertyPlantAndEquipmentGross7.06.87.011.010.911.011.311.912.112.212.012.412.813.213.313.613.813.914.114.415.324.011.712.113.112.911.712.314.615.214.814.214.915.015.714.815.415.9
Percentage of Assets3.33.22.26.36.36.46.56.56.66.67.06.86.97.17.07.07.06.96.86.77.912.55.05.05.14.66.06.24.25.24.84.34.53.94.04.13.23.4
Percentage of Assets us-gaap:Land0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Accumulated Depreciation Depletion And Amortization Property Plant And Equipment

us-gaap:AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment

us-gaap:AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment


Accumulated
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302011-12-312010-12-31
Value4904724498397787477415555435154854454213963473112782482141911811501191018572605040342924201613108.7445.8243.323
Percentage of AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets10.710.46.911.811.411.110.88.38.07.67.96.86.56.05.44.94.54.13.63.02.72.22.82.42.22.02.72.32.52.72.42.11.91.51.31.81.51.47.3

Property Plant And Equipment Net

us-gaap:PropertyPlantAndEquipmentNet

us-gaap:PropertyPlantAndEquipmentNet


Property
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
Value165116541622325331603151322431313164317331073126310331513048296628662749270327863274333717091624145512291069102641940337032931226823615511298825718
Percentage of PropertyPlantAndEquipmentNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets36.236.625.045.846.346.946.946.546.646.850.347.947.747.947.446.846.045.344.943.249.049.839.939.237.133.948.148.026.331.430.228.428.024.724.125.719.221.720.121.441.3

us-gaap:PropertyPlantAndEquipmentNet us-gaap:ConsolidatedEntities

srt:ParentCompany


Property
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302019-12-31
Value144214511421139813671313
Percentage of PropertyPlantAndEquipmentNet87.487.787.643.043.340.8
Percentage of Assets31.632.121.919.720.019.1
Percentage of Assets srt:ParentCompany0.00.00.00.00.022.8

us-gaap:VariableInterestEntityPrimaryBeneficiary


Property
Period End2021-06-302021-03-312020-12-31
Value183177175
Percentage of PropertyPlantAndEquipmentNet11.110.710.8
Percentage of Assets4.03.92.7
Percentage of Assets us-gaap:VariableInterestEntityPrimaryBeneficiary65.265.766.9

us-gaap:PropertyPlantAndEquipmentNet us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments

achc:CorporateReconcilingItemsAndEliminations, us-gaap:CorporateAndOther


Property
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312015-12-31
Value5148575057494244535049493633352752
Percentage of PropertyPlantAndEquipmentNet1.61.51.81.61.81.61.41.41.71.61.61.61.21.21.31.03.1
Percentage of Assets0.70.70.90.70.90.70.60.70.80.80.70.80.60.50.60.41.2
Percentage of Assets achc:CorporateReconcilingItemsAndEliminations us-gaap:CorporateAndOther12.316.430.122.125.619.621.320.625.924.226.723.417.815.519.213.430.5

us-gaap:OperatingSegments, achc:UnitedKingdomFacility


Property
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312015-12-31
Value1700160016001700160017001700170018001800190018001800170017001700824
Percentage of PropertyPlantAndEquipmentNet52.250.650.852.751.153.753.654.757.658.060.359.160.759.361.862.948.2
Percentage of Assets23.923.423.824.723.825.025.127.527.627.728.928.028.427.328.028.219.3
Percentage of Assets us-gaap:OperatingSegments achc:UnitedKingdomFacility67.465.765.565.164.766.864.678.170.169.268.768.068.867.068.969.678.8

us-gaap:OperatingSegments, achc:UnitedStatesFacilities


Property
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312015-12-31
Value150015001500140014001400140014001300130012001200110011001.01000832
Percentage of PropertyPlantAndEquipmentNet46.147.547.643.444.744.244.145.041.641.938.139.437.138.40.037.048.7
Percentage of Assets21.122.022.320.420.820.620.622.719.920.018.218.717.317.70.016.619.4
Percentage of Assets us-gaap:OperatingSegments achc:UnitedStatesFacilities36.036.636.734.734.735.035.437.034.635.233.033.631.231.70.029.627.2

Goodwill

us-gaap:Goodwill

us-gaap:Goodwill


Goodwill
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
Value210321052105246024252426244924242435244123962729273927792751273027102683268127022832277121281981194619048028046656656616476305655573342622611861479.157
Percentage of Goodwill100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets46.146.532.434.635.536.135.636.035.936.038.841.842.142.242.843.043.544.244.541.942.441.449.747.849.652.536.137.641.851.954.055.656.652.156.755.444.757.745.254.620.2

us-gaap:Goodwill us-gaap:ConsolidatedEntities

srt:ParentCompany


Goodwillus-gaap:
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302019-12-31
Value199019921992199219921992
Percentage of Goodwill94.694.694.681.082.181.3
Percentage of Assets43.644.030.728.029.229.0
Percentage of Assets srt:ParentCompany0.00.00.00.00.034.6

us-gaap:Goodwill us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments

us-gaap:OperatingSegments, achc:UnitedKingdomFacility


Goodwillus-gaap:
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312015-12-31
Value355340341364339350359351685694736708687667641639186
Percentage of Goodwill14.414.014.114.914.014.414.714.725.125.426.525.825.224.623.923.88.8
Percentage of Assets5.05.05.15.35.05.25.35.710.510.711.211.010.810.710.610.64.4
Percentage of Assets us-gaap:OperatingSegments achc:UnitedKingdomFacility14.114.014.013.913.713.813.716.226.726.726.626.826.326.326.026.217.8

us-gaap:OperatingSegments, achc:UnitedStatesFacilities


Goodwillus-gaap:
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312015-12-31
Value21052085208520852084208420822044204420442042204220422042204220411941
Percentage of Goodwill85.686.085.985.186.085.685.385.374.974.673.574.274.875.476.176.291.2
Percentage of Assets29.630.531.030.331.030.730.733.131.331.431.031.832.232.833.733.945.4
Percentage of Assets us-gaap:OperatingSegments achc:UnitedStatesFacilities50.550.851.151.651.752.252.754.154.555.356.257.358.058.859.860.463.4

Indefinite Lived Intangible Assets Excluding Goodwill

us-gaap:IndefiniteLivedIntangibleAssetsExcludingGoodwill

us-gaap:IndefiniteLivedIntangibleAssetsExcludingGoodwill


Indefinite
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302011-12-31
Value68686890898990898989889191918786848383848410259585757202019191917171413107.2156.091
Percentage of IndefiniteLivedIntangibleAssetsExcludingGoodwill100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets1.51.51.11.31.31.31.31.31.31.31.41.41.41.41.41.41.41.41.41.31.31.51.41.41.51.60.91.01.21.51.61.51.51.31.41.71.21.5

us-gaap:IndefiniteLivedIntangibleAssetsExcludingGoodwill us-gaap:IndefiniteLivedIntangibleAssetsByMajorClass

achc:CertificateOfNeed


Indefinite
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312012-06-302011-12-31
Value171717171717171716161616161614141413131313109.9469.9219.7949.7228.598.4098.1187.8577.7612.5262.032
Percentage of IndefiniteLivedIntangibleAssetsExcludingGoodwill25.225.125.019.219.319.218.919.118.918.918.618.418.418.516.616.416.616.416.315.915.69.916.817.016.916.841.340.841.240.440.535.033.4
Percentage of Assets0.40.40.30.20.30.30.20.30.20.30.30.30.30.30.20.20.20.20.20.20.20.20.20.20.20.30.40.40.50.60.60.40.5
Percentage of Assets achc:CertificateOfNeed0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:LicensingAgreements


Indefinite
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312012-06-302011-12-31
Value11111112121212121212121212121212121212121211111010109.1849.2118.5958.5958.3914.6894.059
Percentage of IndefiniteLivedIntangibleAssetsExcludingGoodwill17.017.317.313.814.014.013.814.114.113.713.914.013.914.114.014.114.414.614.714.714.611.219.418.417.817.844.244.743.644.243.865.066.6
Percentage of Assets0.30.30.20.20.20.20.20.20.20.20.20.20.20.20.20.20.20.20.20.20.20.20.30.30.30.30.40.40.50.70.70.81.0
Percentage of Assets us-gaap:LicensingAgreements0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:TradeNames


Indefinite
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-31
Value39393960595960596060606161616060585757585980373737373.03.03.03.03.0
Percentage of IndefiniteLivedIntangibleAssetsExcludingGoodwill57.757.657.767.066.866.967.366.767.067.567.567.667.767.569.469.569.069.069.169.469.878.963.864.665.365.414.414.515.215.415.7
Percentage of Assets0.90.90.60.80.90.90.90.90.90.91.00.91.00.90.91.00.91.01.00.90.91.20.90.91.01.00.10.10.20.20.2
Percentage of Assets us-gaap:TradeNames0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Intangible Assets Net Excluding Goodwill

us-gaap:IntangibleAssetsNetExcludingGoodwill

us-gaap:IntangibleAssetsNetExcludingGoodwill


Intangible
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
Value68686890898990898989889191918786848383848410259585858212120202019181615129.1869.3818.232180.544
Percentage of IntangibleAssetsNetExcludingGoodwill100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets1.51.51.11.31.31.31.31.31.31.31.41.41.41.41.41.41.41.41.41.31.31.51.41.41.51.61.01.01.31.61.71.61.71.51.62.11.62.12.07.01.2

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
Value1019696464475476501479491506
Percentage of OperatingLeaseRightOfUseAsset100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets2.22.11.56.57.07.17.37.17.27.5

us-gaap:OperatingLeaseRightOfUseAsset us-gaap:BalanceSheetLocation

achc:OperatingLeaseRightOfUseAssets


Operating
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value96464475476501479491506
Percentage of OperatingLeaseRightOfUseAsset100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets1.56.57.07.17.37.17.27.5
Percentage of Assets achc:OperatingLeaseRightOfUseAssets0.00.00.00.00.00.00.00.0

us-gaap:OperatingLeaseRightOfUseAsset us-gaap:ConsolidatedEntities

us-gaap:VariableInterestEntityPrimaryBeneficiary


Operating
Period End2021-06-302021-03-312020-12-31
Value6.7586.8346.909
Percentage of OperatingLeaseRightOfUseAsset6.67.17.1
Percentage of Assets0.10.20.1
Percentage of Assets us-gaap:VariableInterestEntityPrimaryBeneficiary2.42.52.6

Other Assets Noncurrent

us-gaap:OtherAssetsNoncurrent

us-gaap:OtherAssetsNoncurrent


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302010-12-31
Value60707976686868636271645451554965596151404249386910669414232322724252232141516169.5010.018
Percentage of OtherAssetsNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets1.31.61.21.11.01.01.00.90.91.11.10.80.80.80.81.01.01.00.90.60.60.70.91.72.71.91.92.02.12.52.22.12.32.13.32.42.73.74.03.50.0

Accounts Payable Current

us-gaap:AccountsPayableCurrent

us-gaap:AccountsPayableCurrent


Accounts
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302010-12-31
Value879187130118134127131115116117133130122102958192809210811891785864484331283626282019137.878.0748.642102.787
Percentage of AccountsPayableCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets1.92.01.41.81.72.01.82.01.71.71.92.12.01.91.61.51.31.51.31.41.61.82.11.91.51.82.22.02.02.22.92.32.51.91.92.21.31.82.14.16.1

us-gaap:AccountsPayableCurrent us-gaap:ConsolidatedEntities

us-gaap:VariableInterestEntityPrimaryBeneficiary


Accounts
Period End2021-06-302021-03-312020-12-31
Value3.2853.4274.143
Percentage of AccountsPayableCurrent3.83.74.7
Percentage of Assets0.10.10.1
Percentage of Assets us-gaap:VariableInterestEntityPrimaryBeneficiary1.21.31.6

Liabilities Current

us-gaap:LiabilitiesCurrent

us-gaap:LiabilitiesCurrent


Liabilities
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302010-12-31
Value425410130860152757946345843042441639039438937734134633534238041940829026424323016514210297114101867071574446403618
Percentage of LiabilitiesCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets9.39.120.18.57.78.66.76.86.36.36.76.06.15.95.95.45.65.55.75.96.36.16.86.46.26.47.56.76.47.69.48.77.86.57.39.67.610.39.813.539.8

us-gaap:LiabilitiesCurrent us-gaap:ConsolidatedEntities

srt:ParentCompany


Liabilities
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-31
Value4033906264003622077752724866456570
Percentage of LiabilitiesCurrent95.095.047.966.668.735.816.611.416.811.416.111.616.718.7
Percentage of Assets8.98.69.65.65.33.11.10.81.10.71.10.71.01.1
Percentage of Assets srt:ParentCompany0.00.00.00.00.03.71.30.91.30.91.20.81.11.2

us-gaap:VariableInterestEntityPrimaryBeneficiary


Liabilities
Period End2021-06-302021-03-312020-12-31
Value171717
Percentage of LiabilitiesCurrent4.14.21.3
Percentage of Assets0.40.40.3
Percentage of Assets us-gaap:VariableInterestEntityPrimaryBeneficiary6.26.46.5

Long Term Debt Current

us-gaap:LongTermDebtCurrent

us-gaap:LongTermDebtCurrent


Long
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302010-12-31
Value1311153504819643413836343333333434343434777369454138352613119.571513139.5557.681210.08.06.756.759.984
Percentage of LongTermDebtCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.30.32.40.70.72.90.60.60.60.50.60.50.50.50.50.50.60.60.61.21.11.01.11.01.01.01.20.60.70.71.21.11.20.90.82.01.71.81.62.522.0

Operating Lease Liability Current

us-gaap:OperatingLeaseLiabilityCurrent

us-gaap:OperatingLeaseLiabilityCurrent


Operating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value19181830302929282727
Percentage of OperatingLeaseLiabilityCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.40.40.30.40.40.40.40.40.40.4

us-gaap:OperatingLeaseLiabilityCurrent us-gaap:BalanceSheetLocation

achc:CurrentPortionOfOperatingLeaseLiabilities


Operating
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value1830302929282727
Percentage of OperatingLeaseLiabilityCurrent100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.30.40.40.40.40.40.40.4
Percentage of Assets achc:CurrentPortionOfOperatingLeaseLiabilities0.00.00.00.00.00.00.00.0

us-gaap:OperatingLeaseLiabilityCurrent us-gaap:ConsolidatedEntities

us-gaap:VariableInterestEntityPrimaryBeneficiary


Operating
Period End2021-06-302021-03-312020-12-31
Value0.180.1720.164
Percentage of OperatingLeaseLiabilityCurrent0.90.90.9
Percentage of Assets0.00.00.0
Percentage of Assets us-gaap:VariableInterestEntityPrimaryBeneficiary0.10.10.1

Other Accrued Liabilities Current

us-gaap:OtherAccruedLiabilitiesCurrent

us-gaap:OtherAccruedLiabilitiesCurrent


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312013-12-31
Value171161178251210104141139138134151114127128141111132106122104124108725668613025
Percentage of OtherAccruedLiabilitiesCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets3.83.62.73.53.11.62.12.12.02.02.41.82.02.02.21.82.11.72.01.61.91.61.71.41.71.71.42.1

us-gaap:OtherAccruedLiabilitiesCurrent us-gaap:ConsolidatedEntities

us-gaap:VariableInterestEntityPrimaryBeneficiary


Other
Period End2021-06-302021-03-312020-12-31
Value9.4338.5618.366
Percentage of OtherAccruedLiabilitiesCurrent5.55.34.7
Percentage of Assets0.20.20.1
Percentage of Assets us-gaap:VariableInterestEntityPrimaryBeneficiary3.43.23.2

Other Liabilities Current

us-gaap:OtherLiabilitiesCurrent

us-gaap:OtherLiabilitiesCurrent


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-03-312015-12-312014-12-312013-12-31
Value5.5644.7073.085105.9594.3462.4432.783.4682.0237.0875.2849.771108.4887.369.1387.6778.28342178.6359.834
Percentage of OtherLiabilitiesCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.10.10.00.20.10.10.00.00.10.00.10.10.20.20.10.10.10.10.10.60.40.40.8

Taxes Payable Current

us-gaap:TaxesPayableCurrent

us-gaap:TaxesPayableCurrent


Taxes
Period End2021-06-302021-03-312020-12-312020-09-302019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312014-12-31
Value0.1096.08167.338258.0476.0533.041118.9664.4391.0127.384107.5420.5270.1214.6774.0397.3670.1
Percentage of TaxesPayableCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.00.10.30.10.40.10.10.00.20.10.10.00.10.20.10.00.00.10.10.20.0

Liabilities Noncurrent

us-gaap:LiabilitiesNoncurrent us-gaap:ConsolidatedEntities

us-gaap:LiabilitiesNoncurrent

srt:ParentCompany


Liabilities
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302019-12-31
Value168917283045315930933162
Percentage of LiabilitiesNoncurrent100.0100.0100.0100.0100.0100.0
Percentage of Assets37.038.246.944.545.346.0
Percentage of Assets srt:ParentCompany0.00.00.00.00.054.9

Long Term Debt

us-gaap:LongTermDebt

us-gaap:LongTermDebt


Long
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302011-12-312011-11-01
Value1456149631223118312631403149317432453258319332153221324132393268327532813287366136513566224021341953205310961029567663617585569569473296298277150
Percentage of LongTermDebt100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets31.933.048.043.945.846.845.847.247.848.051.749.249.549.250.451.552.654.154.656.754.653.352.451.549.756.649.348.135.651.750.450.351.152.548.149.150.967.20.0

Long Term Debt Noncurrent

us-gaap:LongTermDebtNoncurrent

us-gaap:LongTermDebtNoncurrent


Long
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-31
Value1443148429683067307829443105313332063221315931813187320832053234324032463253358335783497219520921914201810691016555653601571556560465284288299270
Percentage of LongTermDebtNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets31.632.845.743.245.143.845.146.647.247.551.248.749.048.749.951.052.053.554.055.553.552.251.350.548.855.748.147.534.950.949.249.249.951.647.347.149.266.165.5

us-gaap:LongTermDebtNoncurrent us-gaap:ConsolidatedEntities

srt:ParentCompany


Long
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-31
Value14161458278628472856294431053133320632213159316031653183
Percentage of LongTermDebtNoncurrent98.198.393.892.892.8100.0100.0100.0100.0100.0100.099.399.399.3
Percentage of Assets31.032.242.940.141.843.845.146.647.247.551.248.448.749.5
Percentage of Assets srt:ParentCompany0.00.00.00.00.052.353.955.756.256.856.853.753.854.6

Deferred Income Tax Liabilities Net

us-gaap:DeferredIncomeTaxLiabilitiesNet

us-gaap:DeferredIncomeTaxLiabilitiesNet


Deferred
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302019-12-31
Value7368501049071
Percentage of DeferredIncomeTaxLiabilitiesNet100.0100.0100.0100.0100.0100.0
Percentage of Assets1.61.50.81.51.31.0

Other Liabilities Noncurrent

us-gaap:OtherLiabilitiesNoncurrent

us-gaap:OtherLiabilitiesNoncurrent


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302010-12-31
Value118124133153116126128125124122154165160168166179171165164147151124788782814330201919181813126.5747.2316.3325.254242.229
Percentage of OtherLiabilitiesNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets2.62.82.12.21.71.91.91.91.81.82.52.52.52.62.62.82.82.72.72.32.31.91.82.12.12.22.01.41.31.51.61.61.61.31.31.11.21.41.39.24.9

Operating Lease Liability Noncurrent

us-gaap:OperatingLeaseLiabilityNoncurrent

us-gaap:OperatingLeaseLiabilityNoncurrent


Operating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value898384477474474502478490504
Percentage of OperatingLeaseLiabilityNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets2.01.81.36.76.97.17.37.17.27.4

us-gaap:OperatingLeaseLiabilityNoncurrent us-gaap:BalanceSheetLocation

achc:OperatingLeaseLiabilitiesNoncurrent


Operating
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value84477474474502478490504
Percentage of OperatingLeaseLiabilityNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets1.36.76.97.17.37.17.27.4
Percentage of Assets achc:OperatingLeaseLiabilitiesNoncurrent0.00.00.00.00.00.00.00.0

us-gaap:OperatingLeaseLiabilityNoncurrent us-gaap:ConsolidatedEntities

us-gaap:VariableInterestEntityPrimaryBeneficiary


Operating
Period End2021-06-302021-03-312020-12-31
Value6.7696.8196.863
Percentage of OperatingLeaseLiabilityNoncurrent7.68.18.2
Percentage of Assets0.10.20.1
Percentage of Assets us-gaap:VariableInterestEntityPrimaryBeneficiary2.42.52.6

Lessee Operating Lease Liability Payments Due Year Two

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearTwo

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearTwo


Lessee
Period End2020-12-312020-09-30
Value2155
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueYearTwo100.0100.0
Percentage of Assets0.30.8

Lessee Operating Lease Liability Payments Due Year Three

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearThree

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearThree


Lessee
Period End2020-12-312020-09-30
Value1750
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueYearThree100.0100.0
Percentage of Assets0.30.7

Lessee Operating Lease Liability Payments Due Year Four

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFour

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFour


Lessee
Period End2020-12-312020-09-30
Value1448
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueYearFour100.0100.0
Percentage of Assets0.20.7

Lessee Operating Lease Liability Payments Due Year Five

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFive

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFive


Lessee
Period End2020-12-31
Value12
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueYearFive100.0
Percentage of Assets0.2

Lessee Operating Lease Liability Payments Due After Year Five

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive


Lessee
Period End2020-12-31
Value52
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive100.0
Percentage of Assets0.8

Operating Lease Liability

us-gaap:OperatingLeaseLiability

us-gaap:OperatingLeaseLiability


Operating
Period End2020-12-312020-09-30
Value102507
Percentage of OperatingLeaseLiability100.0100.0
Percentage of Assets1.67.1

Lessee Operating Lease Liability Payments Due

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDue

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDue


Lessee
Period End2020-12-312020-09-30
Value143902
Percentage of LesseeOperatingLeaseLiabilityPaymentsDue100.0100.0
Percentage of Assets2.212.7

Lessee Operating Lease Liability Undiscounted Excess Amount

us-gaap:LesseeOperatingLeaseLiabilityUndiscountedExcessAmount

us-gaap:LesseeOperatingLeaseLiabilityUndiscountedExcessAmount


Lessee
Period End2020-12-312020-09-30
Value40394
Percentage of LesseeOperatingLeaseLiabilityUndiscountedExcessAmount100.0100.0
Percentage of Assets0.65.6

Stockholders Equity

us-gaap:StockholdersEquity

us-gaap:StockholdersEquity


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302010-12-31
Value23562297189926062503246425052420242224032333268026532701257224872376223521672242243625621683167016661249880886895496480466450436432253246100967625
Percentage of StockholdersEquity100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets51.650.829.236.736.636.736.436.035.735.437.841.040.841.040.039.238.236.936.034.736.438.339.340.342.434.539.641.456.238.739.340.140.540.344.042.042.022.223.328.655.3

us-gaap:StockholdersEquity us-gaap:ConsolidatedEntities

srt:ParentCompany


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-31
Value20612013623640590246425052420242224032333268026532572
Percentage of StockholdersEquity87.587.632.824.623.6100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets45.244.59.69.08.636.736.436.035.735.437.841.040.840.0
Percentage of Assets srt:ParentCompany0.00.00.00.00.043.843.543.142.542.442.045.545.144.2

us-gaap:StockholdersEquity us-gaap:StatementEquityComponents

achc:ChangeInFairValueOfDerivativeInstruments


Stockholders
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-31
Value1346686824645235432316-12.8867.16716253440
Percentage of StockholdersEquity0.71.82.72.81.02.72.21.51.90.90.6-0.50.30.71.11.61.9
Percentage of Assets0.20.71.01.00.41.00.80.50.70.40.2-0.20.10.30.40.60.7
Percentage of Assets achc:ChangeInFairValueOfDerivativeInstruments0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:AccumulatedDefinedBenefitPlansAdjustment


Stockholders
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312015-12-312014-12-31
Value-11.95-5.085-4.87-4.888-5.209-1.753-1.809-1.856-1.815-4.388-4.448-4.719-4.545-6.608-6.416-6.087-6.0871.662-2.164
Percentage of StockholdersEquity-0.6-0.2-0.2-0.2-0.2-0.1-0.1-0.1-0.1-0.2-0.2-0.2-0.2-0.3-0.3-0.3-0.30.1-0.2
Percentage of Assets-0.2-0.1-0.1-0.1-0.1-0.0-0.0-0.0-0.0-0.1-0.1-0.1-0.1-0.1-0.1-0.1-0.10.0-0.1
Percentage of Assets us-gaap:AccumulatedDefinedBenefitPlansAdjustment0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:AccumulatedOtherComprehensiveIncome


Stockholders
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302013-12-312012-12-312011-12-312011-09-30
Value-371.365-440.113-500.879-493.138-414.884-507.994-459.617-426.586-462.377-440.462-415.883-301.391-374.118-385.18-445.4-528.392-549.57-425.869-342.611-153.062-104.647-84.293-51.586-97.759-68.37-36.8575318-24.177-44.58-28.671
Percentage of StockholdersEquity-19.6-16.9-20.0-20.0-16.6-21.0-19.0-17.7-19.8-16.4-15.7-11.2-14.5-15.5-18.7-23.6-25.4-19.0-14.1-6.0-6.2-5.0-3.1-7.8-7.8-4.26.03.8-5.6-46.3-37.2
Percentage of Assets-5.7-6.2-7.3-7.3-6.0-7.6-6.8-6.3-7.5-6.7-6.4-4.6-5.8-6.1-7.2-8.7-9.1-6.6-5.1-2.3-2.4-2.0-1.3-2.7-3.1-1.73.41.5-2.5-10.8-10.6
Percentage of Assets us-gaap:AccumulatedOtherComprehensiveIncome0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:AccumulatedTranslationAdjustment


Stockholders
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312015-12-312014-12-31
Value-373.101-481.608-564.155-556.954-434.633-570.702-510.671-460.006-504.528-459.675-427.656-283.786-376.74-394.816-464.63-557.035-584.081-106.309-66.206
Percentage of StockholdersEquity-19.6-18.5-22.5-22.6-17.3-23.6-21.1-19.1-21.6-17.2-16.1-10.5-14.6-15.9-19.5-24.9-26.9-6.3-7.5
Percentage of Assets-5.7-6.8-8.3-8.3-6.3-8.5-7.5-6.8-8.2-7.0-6.6-4.3-5.9-6.2-7.5-9.2-9.7-2.5-3.0
Percentage of Assets us-gaap:AccumulatedTranslationAdjustment0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:AdditionalPaidInCapital


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302013-12-312012-12-312011-12-312011-09-30
Value26112597258025722567256125572554255025462541253525302522251725122508249924962488248124751572157415671230847843840461456140105
Percentage of StockholdersEquity110.8113.0135.898.7102.5103.9102.1105.5105.3106.0108.994.695.493.497.8101.0105.5111.8115.2111.0101.996.693.594.394.198.596.295.193.996.1105.5145.9137.0
Percentage of Assets57.257.439.736.237.638.137.238.037.637.541.238.838.938.339.239.640.341.241.438.637.137.036.838.039.933.938.139.452.837.746.434.039.1
Percentage of Assets us-gaap:AdditionalPaidInCapital0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:CommonStock


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302013-12-312012-12-312011-12-312011-09-30
Value0.8890.8870.880.8790.8790.8780.8770.8770.8760.8760.8740.8740.8730.8730.8710.870.870.8690.8670.8660.8650.8650.7070.7070.7060.6540.5920.5920.5920.5010.4990.3210.176
Percentage of StockholdersEquity0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.10.10.10.10.10.10.30.2
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.10.10.1
Percentage of Assets us-gaap:CommonStock0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:RetainedEarnings


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302013-12-312012-12-312011-12-31
Value-256.155-300.669-310.3864734363953613733302822525845384794283583132632201782962392131791491161017918-24.177-44.58
Percentage of StockholdersEquity-10.9-13.1-16.318.217.416.014.415.413.611.710.821.820.317.716.714.413.211.810.28.012.29.412.710.79.09.311.58.93.8-5.6-46.3
Percentage of Assets-5.6-6.6-4.86.76.45.95.35.54.94.24.19.08.37.36.75.75.04.33.72.84.43.65.04.33.83.24.63.71.5-2.5-10.8
Percentage of Assets us-gaap:RetainedEarnings0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Common Stock Value

us-gaap:CommonStockValue

us-gaap:CommonStockValue


Common
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-31
Value889000.0887000.0880000.0879000.0879000.0878000.0877000.0877000.0876000.0876000.0874000.0874000.0873000.0873000.0871000.0870000.0870000.0869000.0867000.0866000.0865000.0865000.0707000.0707000.0706000.0654000.0592000.0592000.0592000.0502000.0501000.0500000.0500000.0500000.0499000.0418000.0417000.0321000.0321000.0
Percentage of CommonStockValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.10.10.10.10.1

Additional Paid In Capital Common Stock

us-gaap:AdditionalPaidInCapitalCommonStock

us-gaap:AdditionalPaidInCapitalCommonStock


Additional
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-31
Value26112597258025722567256125572554255025462541253525302522251725122508249924962488248124751572157415671230847
Percentage of AdditionalPaidInCapitalCommonStock100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets57.257.439.736.237.638.137.238.037.637.541.238.838.938.339.239.640.341.241.438.637.137.036.838.039.933.938.1

Retained Earnings Accumulated Deficit

us-gaap:RetainedEarningsAccumulatedDeficit

us-gaap:RetainedEarningsAccumulatedDeficit


Retained
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-31
Value-256.155-300.669-310.386473436395361373330282252584538479428358313263220178296239213179149116101795331186.122-8.242-20.439-24.177-28.542-34.992-40.901-44.58
Percentage of RetainedEarningsAccumulatedDeficit100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets-5.6-6.6-4.86.76.45.95.35.54.94.24.19.08.37.36.75.75.04.33.72.84.43.65.04.33.83.24.63.73.42.51.50.5-0.7-1.9-2.5-4.7-6.0-9.0-10.8

Accumulated Other Comprehensive Income Loss Net Of Tax

us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax

us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax


Accumulated
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302013-12-31
Value-371360000.0-440110000.0-500880000.0-493140000.0-414880000.0-507990000.0-459620000.0-426590000.0-462380000.0-440460000.0-415880000.0-301390000.0-374120000.0-385180000.0-445400000.0-528390000.0-549570000.0-425870000.0-342610000.0-153060000.0-104650000.0-84293000.0-51586000.0-97759000.0-68370000.0-36857000.00
Percentage of AccumulatedOtherComprehensiveIncomeLossNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0
Percentage of Assets-5.7-6.2-7.3-7.3-6.0-7.6-6.8-6.3-7.5-6.7-6.4-4.6-5.8-6.1-7.2-8.7-9.1-6.6-5.1-2.3-2.4-2.0-1.3-2.7-3.1-1.70.0

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

us-gaap:AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue

us-gaap:AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue


Adjustments
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302012-12-312012-09-30
Value9.0317.0346.2465.4715.8084.9792.9854.0394.1826.1012.7285.2257.1296.9194.464.1757.4367.3967.3567.1456.8886.9565.8965.3275.3553.8943.0832.8050.5760.521
Percentage of AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
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

us-gaap:AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue us-gaap:StatementEquityComponents

us-gaap:AdditionalPaidInCapital


Adjustments
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302012-12-312012-09-30
Value9.0317.0346.2465.4715.8084.9792.9854.0394.1826.1012.7285.2257.1296.9194.464.1757.4367.3967.3567.1456.8886.9565.8965.3275.3553.8943.0832.8050.5760.521
Percentage of AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
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 us-gaap:AdditionalPaidInCapital0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Net Cash Provided By Used In Operating Activities

us-gaap:NetCashProvidedByUsedInOperatingActivities

us-gaap:NetCashProvidedByUsedInOperatingActivities


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-31
Value907618620721945119848543127681447212883130571017612458985072184639217.3462016270.16710125.6114.935-28.2353.9912.9880.592.722
Percentage of NetCashProvidedByUsedInOperatingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax15.513.834.524.929.25.815.310.910.85.717.29.118.99.717.711.718.28.414.510.316.29.419.810.415.84.915.713.19.93.610.98.915.20.19.212.45.65.4-37.56.34.73.519.8

Net Cash Provided By Used In Investing Activities

us-gaap:NetCashProvidedByUsedInInvestingActivities

us-gaap:NetCashProvidedByUsedInInvestingActivities


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302015-06-302015-03-312014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-31
Value-49.4791368-72.185-69.722-65.771-74.161-63.94940-67.881-110.101-98.47-88.745-95.063-78.686-103.35-86.867-308.984-104.602-24.164-47.924-50.931-36.094-120.681-35.272-294.638-119.435-16.348-94.223-37.753-3.903-183.13-0.784-0.454
Percentage of NetCashProvidedByUsedInInvestingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-8.5248.3-13.3-8.4-8.8-9.5-8.25.2-8.6-14.5-13.2-11.7-12.4-10.6-14.3-12.1-66.9-28.0-11.0-23.3-26.8-18.9-66.0-21.9-257.9-115.8-16.3-103.2-50.1-6.2-288.1-4.7-3.3

Net Cash Provided By Used In Financing Activities

us-gaap:NetCashProvidedByUsedInFinancingActivities

us-gaap:NetCashProvidedByUsedInFinancingActivities


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302015-06-302015-03-312014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-31
Value-34.367-1648.489-2.935-12.555-22.579-13.43-29.468-74.707-15.95558-26.593-10.185-25.818-4.734-32.532-4.319229322724330150.52285321-1.81113029125-2.29175-0.398-0.133
Percentage of NetCashProvidedByUsedInFinancingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-5.9-299.1-0.5-1.5-3.0-1.7-3.8-9.6-2.07.7-3.6-1.3-3.4-0.6-4.5-0.649.68.7123.621.016.28.30.353.0281.6-1.8129.431.8167.0-3.6276.2-2.4-1.0

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

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect


Cash
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value6.631-199.78239126130-43.1883149-0.143-6.8261.582
Percentage of CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax1.1-36.27.415.217.5-5.54.06.4-0.0-0.90.2

Amortization Of Financing Costs

us-gaap:AmortizationOfFinancingCosts

us-gaap:AmortizationOfFinancingCosts


Amortization
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-30
Value0.8171.6462.943.3143.3323.053.0613.0392.9992.8882.6932.6392.5992.5252.5152.4952.4492.3962.612.7582.8092.1471.6921.7991.751.4680.9690.8950.690.6440.5780.5760.570.540.6380.6450.6370.5870.5870.348
Percentage of AmortizationOfFinancingCosts100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Deferred Income Tax Expense Benefit

us-gaap:DeferredIncomeTaxExpenseBenefit

us-gaap:DeferredIncomeTaxExpenseBenefit


Deferred
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-31
Value4.4953.96211191011-3.375.3550.461-0.666-7.9762.24-5.8751.8972012152.0072.799.0367.7369.085144.2435.458192.57-4.4526.8662.231-0.4625.1532.9372.455-5.2913.2843.3081.546-6.333-0.337-0.0050.233-0.036
Percentage of DeferredIncomeTaxExpenseBenefit100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DeferredIncomeTaxExpenseBenefit us-gaap:AwardType

us-gaap:StockCompensationPlan


Deferred
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
Value2.31.81.21.41.51.30.11.31.11.61.81.41.91.916-1.52.82.92.42.92.5-2.8-14.42.22.21.61.31.11.00.70.60.60.70.60.90.00.00.0
Percentage of DeferredIncomeTaxExpenseBenefit51.245.410.67.113.911.5-3.024.3238.6-240.2-22.662.5-32.3100.281.7-12.218.6144.586.032.132.3-30.8-98.051.940.38.350.6-24.714.631.4-129.911.623.824.4-17.00.00.00.0

Increase Decrease In Accounts Receivable

us-gaap:IncreaseDecreaseInAccountsReceivable

us-gaap:IncreaseDecreaseInAccountsReceivable


Increase
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-31
Value102.49-9.9485.674-13.8942.828-13.8965.2871511-26.431177.31118-0.1116.2779.945123.139-6.403153.749-3.951183.4856.957-10.285106.6098.6942.8647.8211.0359.522-2.2938.4074.2656.3540.93.166-1.0242.009-0.028
Percentage of IncreaseDecreaseInAccountsReceivable100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Net Cash Provided By Used In Operating Activities

us-gaap:NetCashProvidedByUsedInOperatingActivities

us-gaap:NetCashProvidedByUsedInOperatingActivities


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-31
Value907618620721945119848543127681447212883130571017612458985072184639217.3462016270.16710125.6114.935-28.2353.9912.9880.592.722
Percentage of NetCashProvidedByUsedInOperatingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax15.513.834.524.929.25.815.310.910.85.717.29.118.99.717.711.718.28.414.510.316.29.419.810.415.84.915.713.19.93.610.98.915.20.19.212.45.65.4-37.56.34.73.519.8

Net Income Loss

us-gaap:NetIncomeLoss

us-gaap:NetIncomeLoss


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-30
Value449.717-783.672364133-11.254424829-331.6374658506945493441-117.808562534293314222522131214123.7384.3656.455.9093.679-15.9093.123-21.857-0.2490.5241.566
Percentage of NetIncomeLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax7.61.8-144.84.45.54.3-1.45.56.13.9-44.66.17.76.89.66.46.95.15.9-15.87.44.17.06.07.33.97.58.410.26.36.57.56.72.33.86.35.94.0-21.15.0-34.4-1.53.89.9

us-gaap:NetIncomeLoss us-gaap:ConsolidatedEntities

srt:ParentCompany


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value4019-353.393381234-10.313424829-331.529465850694549
Percentage of NetIncomeLoss90.7197.745.1102.829.4101.891.6100.4100.1100.1100.0100.1100.1100.1100.199.7100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax6.93.5-65.34.61.64.4-1.35.56.13.9-44.66.17.76.99.66.36.9
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax srt:ParentCompany7.53.8-70.77.50.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:NetIncomeLoss us-gaap:StatementEquityComponents

us-gaap:RetainedEarnings


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-31
Value449.717-783.672364133-11.254424829-331.6374658506945493441-117.80856253429331422
Percentage of NetIncomeLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax7.61.8-144.84.45.54.3-1.45.56.13.9-44.66.17.76.89.66.46.95.15.9-15.87.44.17.06.07.33.97.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:RetainedEarnings0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Profit Loss

us-gaap:ProfitLoss

us-gaap:ProfitLoss


Profit
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-30
Value4510-782.541374134-10.313424829-331.5294658506945493441-118.215525332933142225
Percentage of ProfitLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax7.81.9-144.64.55.64.4-1.35.56.13.9-44.66.17.76.99.66.36.95.15.9-15.97.24.06.96.07.33.97.58.4

us-gaap:ProfitLoss us-gaap:ConsolidatedEntities

srt:ParentCompany


Profit
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value4019-353.393381234-10.313424829-331.529465850694549
Percentage of ProfitLoss88.4183.345.2101.228.9100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax6.93.5-65.34.61.64.4-1.35.56.13.9-44.66.17.76.99.66.36.9
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax srt:ParentCompany7.53.8-70.77.50.00.00.00.00.00.00.00.00.00.00.00.00.0

Share Based Compensation

us-gaap:ShareBasedCompensation

us-gaap:ShareBasedCompensation


Share
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-04-302011-03-31
Value9.0317.0346.2465.4715.8084.9792.9854.0394.1826.1012.7285.2257.1296.9194.464.1757.4367.3967.3567.1456.8886.9565.8965.3275.3553.8943.0832.8052.4061.7641.5051.3311.8120.6010.5760.50.60.578-2.5230.0196.16.1
Percentage of ShareBasedCompensation100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0

Net Cash Provided By Used In Investing Activities

us-gaap:NetCashProvidedByUsedInInvestingActivities

us-gaap:NetCashProvidedByUsedInInvestingActivities


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302015-06-302015-03-312014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-31
Value-49.4791368-72.185-69.722-65.771-74.161-63.94940-67.881-110.101-98.47-88.745-95.063-78.686-103.35-86.867-308.984-104.602-24.164-47.924-50.931-36.094-120.681-35.272-294.638-119.435-16.348-94.223-37.753-3.903-183.13-0.784-0.454
Percentage of NetCashProvidedByUsedInInvestingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-8.5248.3-13.3-8.4-8.8-9.5-8.25.2-8.6-14.5-13.2-11.7-12.4-10.6-14.3-12.1-66.9-28.0-11.0-23.3-26.8-18.9-66.0-21.9-257.9-115.8-16.3-103.2-50.1-6.2-288.1-4.7-3.3

Payments To Acquire Property Plant And Equipment

us-gaap:PaymentsToAcquirePropertyPlantAndEquipment

us-gaap:PaymentsToAcquirePropertyPlantAndEquipment


Payments
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-31
Value54582063626981636969918891708076665057728790757869524227212118201612136.8923.7083.9112.7813.5652.4280.7840.848
Percentage of PaymentsToAcquirePropertyPlantAndEquipment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Net Cash Provided By Used In Financing Activities

us-gaap:NetCashProvidedByUsedInFinancingActivities

us-gaap:NetCashProvidedByUsedInFinancingActivities


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302015-06-302015-03-312014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-31
Value-34.367-1648.489-2.935-12.555-22.579-13.43-29.468-74.707-15.95558-26.593-10.185-25.818-4.734-32.532-4.319229322724330150.52285321-1.81113029125-2.29175-0.398-0.133
Percentage of NetCashProvidedByUsedInFinancingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-5.9-299.1-0.5-1.5-3.0-1.7-3.8-9.6-2.07.7-3.6-1.3-3.4-0.6-4.5-0.649.68.7123.621.016.28.30.353.0281.6-1.8129.431.8167.0-3.6276.2-2.4-1.0

Proceeds From Issuance Of Long Term Debt

us-gaap:ProceedsFromIssuanceOfLongTermDebt

us-gaap:ProceedsFromIssuanceOfLongTermDebt


Proceeds
Period End2021-06-302021-03-312020-12-312020-09-302016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-30
Value0.04254750.00.00.00.014800.02750.08752353000.07.50.00.00.01501510.00.0251470.0
Percentage of ProceedsFromIssuanceOfLongTermDebt0.0100.0100.00.00.00.00.0100.00.0100.00.0100.0100.0100.00.0100.00.00.00.0100.0100.00.00.0100.0100.00.0

Repayments Of Long Term Debt

us-gaap:RepaymentsOfLongTermDebt us-gaap:CreditFacility

us-gaap:RepaymentsOfLongTermDebt

achc:TermLoanAFacility


Repayments
Period End2021-01-19
Value311
Percentage of RepaymentsOfLongTermDebt100.0

us-gaap:RepaymentsOfLongTermDebt us-gaap:CreditFacility, us-gaap:DisposalGroupClassification, us-gaap:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations, us-gaap:SubsequentEventType

achc:TermLoanAFacility, us-gaap:DiscontinuedOperationsDisposedOfBySale, achc:UKSales, us-gaap:SubsequentEvent


Repayments
Period End2021-01-19
Value312
Percentage of RepaymentsOfLongTermDebt100.1

us-gaap:RepaymentsOfLongTermDebt us-gaap:DebtInstrument

achc:TermLoanBFacilityTrancheBFour


Repayments
Period End2021-01-192021-01-05
Value767105
Percentage of RepaymentsOfLongTermDebt246.40.0

achc:TrancheB4PriorCreditFacility


Repayments
Period End2021-01-192021-01-05
Value767105
Percentage of RepaymentsOfLongTermDebt246.40.0

achc:TrancheB4RepricingAmendment


Repayments
Period End2021-01-192021-01-05
Value767105
Percentage of RepaymentsOfLongTermDebt246.40.0

us-gaap:RepaymentsOfLongTermDebt us-gaap:DebtInstrument, us-gaap:DisposalGroupClassification, us-gaap:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations, us-gaap:SubsequentEventType

achc:TrancheB4RepricingAmendment, us-gaap:DiscontinuedOperationsDisposedOfBySale, achc:UKSales, us-gaap:SubsequentEvent


Repayments
Period End2021-01-19
Value768
Percentage of RepaymentsOfLongTermDebt246.4

Debt Instrument Interest Rate Stated Percentage

us-gaap:DebtInstrumentInterestRateStatedPercentage us-gaap:DebtInstrument

us-gaap:DebtInstrumentInterestRateStatedPercentage

achc:FivePointZeroZeroZeroPercentSeniorNotesDueTwoThousandTwentyNine


Debt
Period End2020-10-14
Value5.0
Percentage of DebtInstrumentInterestRateStatedPercentage100.0
Percentage of LongTermDebtAndCapitalLeaseObligations0.0
Percentage of LongTermDebtAndCapitalLeaseObligations achc:FivePointZeroZeroZeroPercentSeniorNotesDueTwoThousandTwentyNine0.0

us-gaap:DebtInstrumentInterestRateStatedPercentage us-gaap:DebtInstrumentRedemptionPeriod

achc:RedemptionOfFivePointTwoSixFivePercentageSeniorNotes


Debt
Period End2021-01-29
Value5.625
Percentage of DebtInstrumentInterestRateStatedPercentage0.0
Percentage of LongTermDebtAndCapitalLeaseObligations0.0
Percentage of LongTermDebtAndCapitalLeaseObligations achc:RedemptionOfFivePointTwoSixFivePercentageSeniorNotes0.0

achc:RedemptionOfSixPointFiveZeroZeroPercentageSeniorNotes


Debt
Period End2021-01-29
Value6.5
Percentage of DebtInstrumentInterestRateStatedPercentage0.0
Percentage of LongTermDebtAndCapitalLeaseObligations0.0
Percentage of LongTermDebtAndCapitalLeaseObligations achc:RedemptionOfSixPointFiveZeroZeroPercentageSeniorNotes0.0

Effective Income Tax Rate Continuing Operations

us-gaap:EffectiveIncomeTaxRateContinuingOperations

us-gaap:EffectiveIncomeTaxRateContinuingOperations


Effective
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-30
Value6.416.00.1650.1450.0140.1380.1940.2-0.1340.1590.15-0.058-0.1060.260.250.2833.801-0.0210.2470.2190.0140.3040.3140.3120.0070.2320.3990.3740.0010.3470.3950.3980.0070.3610.391
Percentage of EffectiveIncomeTaxRateContinuingOperations100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice


Share
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312011-12-31
Value41.5741.8537.5637.4237.837.8139.439.3539.4439.3944.6444.6944.745.1747.8947.4748.2348.0849.4250.0749.3647.8642.8742.4540.2838.3832.1931.9228.927.9821.9321.0720.719.7413.137.74
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Deferred Tax Liabilities

us-gaap:DeferredTaxLiabilities

us-gaap:DeferredTaxLiabilities


Deferred
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312014-12-312013-12-312012-12-312011-12-31
Value466876767460144.6954.814
Percentage of DeferredTaxLiabilities100.0100.0100.0100.0100.0100.0100.0100.0100.0

Deferred Tax Assets Net

us-gaap:DeferredTaxAssetsNet

us-gaap:DeferredTaxAssetsNet


Deferred
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-31
Value991947853839230221517
Percentage of DeferredTaxAssetsNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Unrecognized Tax Benefits

us-gaap:UnrecognizedTaxBenefits

us-gaap:UnrecognizedTaxBenefits


Unrecognized
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-31
Value2060000.02441000.0713000.06104000.06949000.04511000.02923000.01893000.01195000.01050000.01050000.0
Percentage of UnrecognizedTaxBenefits100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:UnrecognizedTaxBenefits us-gaap:BalanceSheetLocation

us-gaap:OtherLiabilities


Unrecognized
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-31
Value2500000.03100000.0900000.06400000.07800000.05400000.0
Percentage of UnrecognizedTaxBenefits121.4127.0126.2104.8112.2119.7

Deferred Tax Assets Valuation Allowance

us-gaap:DeferredTaxAssetsValuationAllowance

us-gaap:DeferredTaxAssetsValuationAllowance


Deferred
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-31
Value24128242116164.7340.1240.3590.74
Percentage of DeferredTaxAssetsValuationAllowance100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

achc:AdditionalReliefReceived us-gaap:LoansInsuredOrGuaranteedByGovernmentAuthorities, us-gaap:UnusualOrInfrequentItem

achc:AdditionalReliefReceived

achc:PublicHealthAndSocialServicesEmergencyFund, achc:CoronavirusAidReliefAndEconomicSecurityAct


Additional
Period End2021-04-302020-08-31
Value2412
Percentage of AdditionalReliefReceived100.0100.0

achc:CashBenefitRelatingToDelayOfPaymentOfSocialSecurityPayrollTaxes us-gaap:UnusualOrInfrequentItem

achc:CashBenefitRelatingToDelayOfPaymentOfSocialSecurityPayrollTaxes

achc:CoronavirusAidReliefAndEconomicSecurityAct


Cash
Period End2020-12-31
Value0.0
Percentage of CashBenefitRelatingToDelayOfPaymentOfSocialSecurityPayrollTaxes0.0

achc:CashFromBalanceSheetToRepaySeniorNotes us-gaap:DebtInstrumentRedemptionPeriod, us-gaap:SubsequentEventType

achc:CashFromBalanceSheetToRepaySeniorNotes

achc:RedemptionOfFivePointTwoSixFivePercentageAndSixPointFiveZeroZeroPercentageSeniorNotes, us-gaap:SubsequentEvent


Cash
Period End2021-01-29
Value430
Percentage of CashFromBalanceSheetToRepaySeniorNotes100.0

achc:CashPaidForRealEstateAcquisitions

achc:CashPaidForRealEstateAcquisitions


Cash
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value2.7541.181.2663.1490.6422.5283.3821.0668.992
Percentage of CashPaidForRealEstateAcquisitions100.0100.0100.0100.0100.0100.0100.0100.0100.0

achc:CashToBalanceSheetAfterTermLoanRepayments us-gaap:DisposalGroupClassification, us-gaap:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations, us-gaap:SubsequentEventType

achc:CashToBalanceSheetAfterTermLoanRepayments

us-gaap:DiscontinuedOperationsDisposedOfBySale, achc:UKSales, us-gaap:SubsequentEvent


Cash
Period End2021-01-19
Value345
Percentage of CashToBalanceSheetAfterTermLoanRepayments100.0

achc:CommonStockWithheldForMinimumStatutoryTaxes

achc:CommonStockWithheldForMinimumStatutoryTaxes


Common
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-30
Value-0.58-4.521-0.182-0.114-0.145-1.402-0.205-0.037-0.3561.621.2650.1580.2322.1260.1890.2310.6654.4390.961.6240.8596.7870.3761.3752.7165.110.6220.495
Percentage of CommonStockWithheldForMinimumStatutoryTaxes100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

achc:CommonStockWithheldForMinimumStatutoryTaxes us-gaap:StatementEquityComponents

us-gaap:AdditionalPaidInCapital


Common
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-30
Value-0.58-4.521-0.182-0.114-0.145-1.402-0.205-0.037-0.3561.621.2650.1580.2322.1260.1890.2310.6654.4390.961.6240.8596.7870.3761.3752.7165.110.6220.495
Percentage of CommonStockWithheldForMinimumStatutoryTaxes100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

achc:CommonStockWithheldForMinimumStatutoryTaxesNet

achc:CommonStockWithheldForMinimumStatutoryTaxesNet


Common
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-31
Value-5042000.0-8219000.0-1495000.0-66000.0-25000.01402000.0151000.0-117000.0288000.01327000.01135000.0138000.0104000.02030000.0177000.0-400000.0-556000.04234000.0929000.0552000.0686000.06679000.0180000.0-244000.02716000.05110000.0622000.0496000.0869000.02112000.0122000.058000.0421000.0641000.0
Percentage of CommonStockWithheldForMinimumStatutoryTaxesNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

achc:ContractWithCustomerLiabilityAdvanceRepayments us-gaap:MajorCustomers, us-gaap:TypeOfArrangement, us-gaap:UnusualOrInfrequentItem

achc:ContractWithCustomerLiabilityAdvanceRepayments

achc:Medicare, achc:CMSAcceleratedAndAdvancePaymentProgram, achc:CoronavirusAidReliefAndEconomicSecurityAct


Contract
Period End2021-06-30
Value7000000.0
Percentage of ContractWithCustomerLiabilityAdvanceRepayments100.0

achc:ContractWithCustomerLiabilityAdvanceRepayments us-gaap:MajorCustomers, us-gaap:UnusualOrInfrequentItem

achc:Medicare, achc:CoronavirusAidReliefAndEconomicSecurityAct


Contract
Period End2021-06-30
Value7000000.0
Percentage of ContractWithCustomerLiabilityAdvanceRepayments100.0

achc:ContractWithCustomerLiabilityPaymentsReceived us-gaap:FairValueByLiabilityClass

achc:ContractWithCustomerLiabilityPaymentsReceived

achc:UnearnedRevenue


Contract
Period End2021-06-302021-03-31
Value0.482.436
Percentage of ContractWithCustomerLiabilityPaymentsReceived100.0100.0

achc:ContractWithCustomerLiabilityPaymentsReceived us-gaap:FairValueByLiabilityClass, us-gaap:StatementBusinessSegments

achc:UnearnedRevenue, achc:UnitedKingdomFacility


Contract
Period End2020-09-30
Value48
Percentage of ContractWithCustomerLiabilityPaymentsReceived0.0

achc:UnearnedRevenue, achc:UnitedStatesFacilities


Contract
Period End2020-12-312020-09-30
Value0.9570.755
Percentage of ContractWithCustomerLiabilityPaymentsReceived0.00.0

achc:DebtInstrumentTransactionCosts us-gaap:DebtInstrumentRedemptionPeriod, us-gaap:SubsequentEventType

achc:DebtInstrumentTransactionCosts

achc:RedemptionOfFivePointTwoSixFivePercentageAndSixPointFiveZeroZeroPercentageSeniorNotes, us-gaap:SubsequentEvent


Debt
Period End2021-01-29
Value9000000.0
Percentage of DebtInstrumentTransactionCosts100.0

achc:DisposalGroupIncludingDiscontinuedOperationInterestExpenseNet us-gaap:DisposalGroupClassification, us-gaap:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations

achc:DisposalGroupIncludingDiscontinuedOperationInterestExpenseNet

us-gaap:DiscontinuedOperationsDisposedOfBySale, achc:UKSales


Disposal
Period End2021-06-302021-03-312020-06-302020-03-31
Value010000.0208000.0220000.0
Percentage of DisposalGroupIncludingDiscontinuedOperationInterestExpenseNet0.0100.0100.0100.0

achc:DisposalGroupIncludingDiscontinuedOperationProfessionalFees us-gaap:DisposalGroupClassification, us-gaap:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations

achc:DisposalGroupIncludingDiscontinuedOperationProfessionalFees

us-gaap:DiscontinuedOperationsDisposedOfBySale, achc:UKSales


Disposal
Period End2021-06-302021-03-312020-06-302020-03-31
Value0.06.8152832
Percentage of DisposalGroupIncludingDiscontinuedOperationProfessionalFees0.0100.0100.0100.0

achc:DisposalGroupIncludingDiscontinuedOperationRentsAndLeases us-gaap:DisposalGroupClassification, us-gaap:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations

achc:DisposalGroupIncludingDiscontinuedOperationRentsAndLeases

us-gaap:DiscontinuedOperationsDisposedOfBySale, achc:UKSales


Disposal
Period End2021-06-302021-03-312020-06-302020-03-31
Value0.02.5091111
Percentage of DisposalGroupIncludingDiscontinuedOperationRentsAndLeases0.0100.0100.0100.0

achc:DisposalGroupIncludingDiscontinuedOperationSalariesWagesAndBenefits us-gaap:DisposalGroupClassification, us-gaap:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations

achc:DisposalGroupIncludingDiscontinuedOperationSalariesWagesAndBenefits

us-gaap:DiscontinuedOperationsDisposedOfBySale, achc:UKSales


Disposal
Period End2021-06-302021-03-312020-06-302020-03-31
Value0.035152153
Percentage of DisposalGroupIncludingDiscontinuedOperationSalariesWagesAndBenefits0.0100.0100.0100.0

achc:DisposalGroupIncludingDiscontinuedOperationSupplies us-gaap:DisposalGroupClassification, us-gaap:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations

achc:DisposalGroupIncludingDiscontinuedOperationSupplies

us-gaap:DiscontinuedOperationsDisposedOfBySale, achc:UKSales


Disposal
Period End2021-06-302021-03-312020-06-302020-03-31
Value0.02.2179.0659.775
Percentage of DisposalGroupIncludingDiscontinuedOperationSupplies0.0100.0100.0100.0

achc:DisposalGroupIncludingDiscontinuedOperationTransactionRelatedExpenses us-gaap:DisposalGroupClassification, us-gaap:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations

achc:DisposalGroupIncludingDiscontinuedOperationTransactionRelatedExpenses

us-gaap:DiscontinuedOperationsDisposedOfBySale, achc:UKSales


Disposal
Period End2021-06-302021-03-312020-06-302020-03-31
Value06265000.0233000.02023000.0
Percentage of DisposalGroupIncludingDiscontinuedOperationTransactionRelatedExpenses0.0100.0100.0100.0

achc:DivestitureCashRetainedByBuyer us-gaap:DisposalGroupClassification, us-gaap:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations, us-gaap:SubsequentEventType

achc:DivestitureCashRetainedByBuyer

us-gaap:DiscontinuedOperationsDisposedOfBySale, achc:UKSales, us-gaap:SubsequentEvent


Divestiture
Period End2021-01-19
Value75
Percentage of DivestitureCashRetainedByBuyer100.0

achc:FinanceLeaseCost

achc:FinanceLeaseCost


Finance
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value-2231000.02146000.02033000.02134000.0-2135000.02013000.02135000.02120000.0
Percentage of FinanceLeaseCost100.0100.0100.0100.0100.0100.0100.0100.0

achc:LegalAccountingAndOtherAcquisitionRelatedCosts

achc:LegalAccountingAndOtherAcquisitionRelatedCosts


Legal
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value1787000.0110000.01612000.05202000.01328000.01852000.0234000.0420000.0796000.0525000.0910000.0878000.0
Percentage of LegalAccountingAndOtherAcquisitionRelatedCosts100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

achc:NetIncreaseDecreaseInCashAndCashEquivalentsIncludingCashClassifiedWithinCurrentAssetsHeldForSaleIncludingExchangeRateEffect

achc:NetIncreaseDecreaseInCashAndCashEquivalentsIncludingCashClassifiedWithinCurrentAssetsHeldForSaleIncludingExchangeRateEffect


Net
Period End2021-06-302021-03-312020-06-302020-03-31
Value6.631-199.782130-43.188
Percentage of NetIncreaseDecreaseInCashAndCashEquivalentsIncludingCashClassifiedWithinCurrentAssetsHeldForSaleIncludingExchangeRateEffect100.0100.0100.0100.0

achc:NetProceedsFromDivestitureOfBusinessesAfterDeductingCashRetainedByBuyer us-gaap:DisposalGroupClassification, us-gaap:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations, us-gaap:SubsequentEventType

achc:NetProceedsFromDivestitureOfBusinessesAfterDeductingCashRetainedByBuyer

us-gaap:DiscontinuedOperationsDisposedOfBySale, achc:UKSales, us-gaap:SubsequentEvent


Net
Period End2021-01-19
Value1350
Percentage of NetProceedsFromDivestitureOfBusinessesAfterDeductingCashRetainedByBuyer100.0

achc:NetProceedsFromDivestitureOfBusinessesBeforeCashRetainedByBuyer us-gaap:DisposalGroupClassification, us-gaap:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations

achc:NetProceedsFromDivestitureOfBusinessesBeforeCashRetainedByBuyer

us-gaap:DiscontinuedOperationsDisposedOfBySale, achc:UKSales


Net
Period End2021-01-19
Value1425
Percentage of NetProceedsFromDivestitureOfBusinessesBeforeCashRetainedByBuyer100.0

achc:NetProceedsFromDivestitureOfBusinessesBeforeCashRetainedByBuyer us-gaap:DisposalGroupClassification, us-gaap:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations, us-gaap:SubsequentEventType

us-gaap:DiscontinuedOperationsDisposedOfBySale, achc:UKSales, us-gaap:SubsequentEvent


Net
Period End2021-01-19
Value1425
Percentage of NetProceedsFromDivestitureOfBusinessesBeforeCashRetainedByBuyer100.0

achc:OtherComprehensiveIncomeLossDiscontinuedOperationGainLossFromDisposalOfDiscontinuedOperationNetOfTax

achc:OtherComprehensiveIncomeLossDiscontinuedOperationGainLossFromDisposalOfDiscontinuedOperationNetOfTax


Other
Period End2021-06-302021-03-31
Value0.0375
Percentage of OtherComprehensiveIncomeLossDiscontinuedOperationGainLossFromDisposalOfDiscontinuedOperationNetOfTax0.0100.0

achc:OtherComprehensiveIncomeLossDiscontinuedOperationGainLossFromDisposalOfDiscontinuedOperationNetOfTax us-gaap:StatementEquityComponents

achc:ChangeInFairValueOfDerivativeInstruments


Other
Period End2021-06-302021-03-31
Value0.0-13.705
Percentage of OtherComprehensiveIncomeLossDiscontinuedOperationGainLossFromDisposalOfDiscontinuedOperationNetOfTax0.0-3.6

us-gaap:AccumulatedDefinedBenefitPlansAdjustment


Other
Period End2021-06-302021-03-31
Value0.011
Percentage of OtherComprehensiveIncomeLossDiscontinuedOperationGainLossFromDisposalOfDiscontinuedOperationNetOfTax0.03.2

us-gaap:AccumulatedTranslationAdjustment


Other
Period End2021-06-302021-03-31
Value0.0377
Percentage of OtherComprehensiveIncomeLossDiscontinuedOperationGainLossFromDisposalOfDiscontinuedOperationNetOfTax0.0100.5

achc:OtherLeaseCost

achc:OtherLeaseCost


Other
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value-1238000.01848000.01757000.01886000.0-1653000.01654000.01655000.01445000.0
Percentage of OtherLeaseCost100.0100.0100.0100.0100.0100.0100.0100.0

achc:PaymentOfDebtBreakageCosts us-gaap:DebtInstrumentRedemptionPeriod

achc:PaymentOfDebtBreakageCosts

achc:RedemptionOfSixPointFiveZeroZeroPercentageSeniorNotes


Payment
Period End2021-03-01
Value6300000.0
Percentage of PaymentOfDebtBreakageCosts100.0

achc:PaymentOfDebtBreakageCosts us-gaap:DebtInstrumentRedemptionPeriod, us-gaap:SubsequentEventType

achc:RedemptionOfFivePointTwoSixFivePercentageAndSixPointFiveZeroZeroPercentageSeniorNotes, us-gaap:SubsequentEvent


Payment
Period End2021-01-29
Value6000000.0
Percentage of PaymentOfDebtBreakageCosts0.0

achc:PercentageOfHealthCareOrganizationRevenue us-gaap:MajorCustomers, us-gaap:StatementBusinessSegments

achc:PercentageOfHealthCareOrganizationRevenue

achc:Commercial, achc:UnitedStatesFacilities


Percentage
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
Value30.729.50.128.60.2850.281-0.0010.2750.2880.28600.30.3060.298
Percentage of PercentageOfHealthCareOrganizationRevenue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0

achc:Medicaid, achc:UnitedStatesFacilities


Percentage
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
Value48.549.80.347.70.50.5110.0030.5030.50.490.0030.4690.4690.461
Percentage of PercentageOfHealthCareOrganizationRevenue158.0168.8300.0166.8175.4181.9-300.0182.9173.6171.30.0156.3153.3154.7

achc:Medicare, achc:UnitedStatesFacilities


Percentage
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
Value15.515.6-0.117.60.1540.142-0.0010.1510.1440.14900.150.1440.145
Percentage of PercentageOfHealthCareOrganizationRevenue50.552.9-100.061.554.050.5100.054.950.052.10.050.047.148.7

achc:OtherPayor, achc:UnitedKingdomFacility


Percentage
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value0.20.0020.00200.0030.0020.00200.00100.005
Percentage of PercentageOfHealthCareOrganizationRevenue0.70.70.7-0.01.10.70.70.00.30.01.7

achc:OtherPayor, achc:UnitedStatesFacilities


Percentage
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
Value1.31.0-0.11.30.0150.0130.0010.0110.010.01-0.0010.0120.0120.016
Percentage of PercentageOfHealthCareOrganizationRevenue4.23.4-100.04.55.34.6-100.04.03.53.50.04.03.95.4

achc:SelfPayor, achc:UnitedKingdomFacility


Percentage
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value9.20.0870.0980.0010.0910.0950.0980.0010.0960.0960.09
Percentage of PercentageOfHealthCareOrganizationRevenue32.230.534.9-100.033.133.034.30.032.031.430.2

achc:SelfPayor, achc:UnitedStatesFacilities


Percentage
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
Value4.04.1-0.24.80.0460.053-0.0020.060.0580.065-0.0020.0690.0690.08
Percentage of PercentageOfHealthCareOrganizationRevenue13.013.9-200.016.816.118.9200.021.820.122.70.023.022.526.8

achc:UKPublicFundedSources, achc:UnitedKingdomFacility


Percentage
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value90.60.9110.9-0.0010.9060.9030.9-0.0010.9030.9040.905
Percentage of PercentageOfHealthCareOrganizationRevenue316.8319.6320.3100.0329.5313.5314.70.0301.0295.4303.7

achc:PurchaseOfLeasedProperty us-gaap:SubsequentEventType

achc:PurchaseOfLeasedProperty

us-gaap:SubsequentEvent


Purchase
Period End2021-07-31
Value31
Percentage of PurchaseOfLeasedProperty100.0

achc:RedeemableNoncontrollingInterestResultingFromAnAcquisition

achc:RedeemableNoncontrollingInterestResultingFromAnAcquisition


Redeemable
Period End2020-12-31
Value-40.394
Percentage of RedeemableNoncontrollingInterestResultingFromAnAcquisition100.0

achc:ReversalOfIncomeRecordedUnderCARESAct us-gaap:UnusualOrInfrequentItem

achc:ReversalOfIncomeRecordedUnderCARESAct

achc:CoronavirusAidReliefAndEconomicSecurityAct


Reversal
Period End2020-09-30
Value18
Percentage of ReversalOfIncomeRecordedUnderCARESAct100.0

achc:SegmentEBITDA

achc:SegmentEBITDA


Segment
Period End2020-09-302020-06-302019-09-302019-06-30
Value159144146158
Percentage of SegmentEBITDA100.0100.0100.0100.0

achc:SegmentEBITDA us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments

achc:CorporateReconcilingItemsAndEliminations, us-gaap:CorporateAndOther


Segment
Period End2020-09-302020-06-302019-09-302019-06-30
Value-22.384-22.099-21.175-22.345
Percentage of SegmentEBITDA-14.0-15.3-14.4-14.1

us-gaap:OperatingSegments, achc:UnitedKingdomFacility


Segment
Period End2020-09-302020-06-302019-09-302019-06-30
Value43314045
Percentage of SegmentEBITDA27.221.927.828.8

us-gaap:OperatingSegments, achc:UnitedStatesFacilities


Segment
Period End2020-09-302020-06-302019-09-302019-06-30
Value138134127135
Percentage of SegmentEBITDA86.893.486.785.2

achc:ShareBasedCompensationArrangementByShareBasedPaymentAward

achc:ShareBasedCompensationArrangementByShareBasedPaymentAward


Share
Period End2021-06-302021-03-312020-12-31
Value025.00
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAward0.0100.00.0

achc:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsPerformanceAdjustmentWeightedAverageGrantDateFairValue us-gaap:AwardType

achc:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsPerformanceAdjustmentWeightedAverageGrantDateFairValue

us-gaap:RestrictedStockUnitsRSU


Share
Period End2021-06-302021-03-31
Value4.6219.48
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsPerformanceAdjustmentWeightedAverageGrantDateFairValue100.0100.0

achc:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodIntrinsicValue

achc:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodIntrinsicValue


Share
Period End2020-12-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-30
Value128000.0130000.017000.01151000.045000.0-229000.0338000.025000.0112000.0-177000.0277000.027000.078000.043000.0533000.0708000.0440000.0112000.056000.0
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodIntrinsicValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

achc:TransactionCostsRelatedToSaleOfBusiness us-gaap:DisposalGroupClassification, us-gaap:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations, us-gaap:SubsequentEventType

achc:TransactionCostsRelatedToSaleOfBusiness

us-gaap:DiscontinuedOperationsDisposedOfBySale, achc:UKSales, us-gaap:SubsequentEvent


Transaction
Period End2021-01-19
Value16
Percentage of TransactionCostsRelatedToSaleOfBusiness100.0

us-gaap:AdjustmentsToAdditionalPaidInCapitalOther

us-gaap:AdjustmentsToAdditionalPaidInCapitalOther


Adjustments
Period End2021-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-31
Value2208000.05017000.0208000.0313000.0313000.0312000.0312000.0313000.0312000.01059000.0314000.0313000.0312000.0313000.0310000.0314000.0313000.0474000.0
Percentage of AdjustmentsToAdditionalPaidInCapitalOther100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AdjustmentsToAdditionalPaidInCapitalOther us-gaap:StatementEquityComponents

us-gaap:AdditionalPaidInCapital


Adjustments
Period End2021-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-31
Value2208000.05017000.0208000.0313000.0313000.0312000.0312000.0313000.0312000.01059000.0314000.0313000.0312000.0313000.0310000.0314000.0313000.0474000.0
Percentage of AdjustmentsToAdditionalPaidInCapitalOther100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AssetImpairmentCharges

us-gaap:AssetImpairmentCharges


Asset
Period End2021-06-302020-12-312020-09-302019-12-312018-12-31
Value23-15.4882054337
Percentage of AssetImpairmentCharges100.0100.0100.0100.0100.0

us-gaap:BusinessCombinationAcquisitionRelatedCosts

us-gaap:BusinessCombinationAcquisitionRelatedCosts


Business
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-30
Value1.6754.61-5.5738.5035.2413.549115.7755.2124.321242.3532.8874.7685.4315.6659.0524.119141.1116.074265.1565.8427.157182.8166.2393.0161.5793.3370.9841.3551.4746.0150.7320.670.695302.2335.7562.6060.8140.091
Percentage of BusinessCombinationAcquisitionRelatedCosts100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:BusinessExitCosts1

us-gaap:BusinessExitCosts1


Business
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value2.823-5.6836.8910.0392.2214.3755.5414.7923.5254.9851.4432.0093.392
Percentage of BusinessExitCosts1100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:CashProvidedByUsedInOperatingActivitiesDiscontinuedOperations

us-gaap:CashProvidedByUsedInOperatingActivitiesDiscontinuedOperations


Cash
Period End2021-06-302021-03-312020-06-302020-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-31
Value0.00.25332280.0-1.976-0.285-0.287-0.432-0.432-0.404-0.425-4.732-2.551-2.354-0.619-0.256-2.0330.420.134-0.171-0.016-0.0420.0310.773-0.183-0.091-0.267-0.083-0.1320.32-0.516-1.0060.672-1.7430.018-0.059
Percentage of CashProvidedByUsedInOperatingActivitiesDiscontinuedOperations0.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ContractWithCustomerLiabilityRevenueRecognized us-gaap:FairValueByLiabilityClass

us-gaap:ContractWithCustomerLiabilityRevenueRecognized

achc:UnearnedRevenue


Contract
Period End2021-06-302021-03-31
Value1.030.478
Percentage of ContractWithCustomerLiabilityRevenueRecognized100.0100.0

us-gaap:ContractWithCustomerLiabilityRevenueRecognized us-gaap:FairValueByLiabilityClass, us-gaap:StatementBusinessSegments

achc:UnearnedRevenue, achc:UnitedKingdomFacility


Contract
Period End2020-09-30
Value46
Percentage of ContractWithCustomerLiabilityRevenueRecognized0.0

achc:UnearnedRevenue, achc:UnitedStatesFacilities


Contract
Period End2020-12-312020-09-30
Value-10.3361.227
Percentage of ContractWithCustomerLiabilityRevenueRecognized0.00.0

us-gaap:DebtInstrumentPeriodicPayment us-gaap:DebtInstrument, us-gaap:LongtermDebtType

us-gaap:DebtInstrumentPeriodicPayment

achc:TrancheB4RepricingAmendment, achc:AmendedAndRestatedCreditFacility


Debt
Period End2020-09-302020-06-302020-03-31
Value0.00.0854
Percentage of DebtInstrumentPeriodicPayment0.00.0100.0

us-gaap:DebtInstrumentPeriodicPaymentPrincipal us-gaap:DebtInstrument, us-gaap:DebtInstrumentRedemptionPeriod

us-gaap:DebtInstrumentPeriodicPaymentPrincipal

achc:NewCreditFacility, us-gaap:DebtInstrumentRedemptionPeriodFour


Debt
Period End2021-06-302021-03-31
Value0.010
Percentage of DebtInstrumentPeriodicPaymentPrincipal0.0100.0

achc:NewCreditFacility, us-gaap:DebtInstrumentRedemptionPeriodOne


Debt
Period End2021-06-302021-03-31
Value0.02.7
Percentage of DebtInstrumentPeriodicPaymentPrincipal0.025.5

achc:NewCreditFacility, us-gaap:DebtInstrumentRedemptionPeriodThree


Debt
Period End2021-06-302021-03-31
Value0.08.0
Percentage of DebtInstrumentPeriodicPaymentPrincipal0.075.5

achc:NewCreditFacility, us-gaap:DebtInstrumentRedemptionPeriodTwo


Debt
Period End2021-06-302021-03-31
Value0.05.3
Percentage of DebtInstrumentPeriodicPaymentPrincipal0.050.0

us-gaap:DepreciationAndAmortization

us-gaap:DepreciationAndAmortization


Depreciation
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-30
Value2524-30.781424141414041403939393937363533333636271816141310105.9355.4364.8424.4144.2123.6222.652.0761.6461.6151.1740.9131.9560.2430.2480.248
Percentage of DepreciationAndAmortization100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DiscontinuedOperationGainLossFromDisposalOfDiscontinuedOperationBeforeIncomeTax us-gaap:DisposalGroupClassification, us-gaap:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations

us-gaap:DiscontinuedOperationGainLossFromDisposalOfDiscontinuedOperationBeforeIncomeTax

us-gaap:DiscontinuedOperationsDisposedOfBySale, achc:UKSales


Discontinued
Period End2021-06-302021-03-31
Value0-14254000.0
Percentage of DiscontinuedOperationGainLossFromDisposalOfDiscontinuedOperationBeforeIncomeTax0.0100.0

us-gaap:DiscontinuedOperationGainLossOnDisposalOfDiscontinuedOperationNetOfTax us-gaap:DisposalGroupClassification, us-gaap:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations

us-gaap:DiscontinuedOperationGainLossOnDisposalOfDiscontinuedOperationNetOfTax

us-gaap:DiscontinuedOperationsDisposedOfBySale, achc:UKSales


Discontinued
Period End2021-03-31
Value-14300000.0
Percentage of DiscontinuedOperationGainLossOnDisposalOfDiscontinuedOperationNetOfTax100.0

us-gaap:DiscontinuedOperationIncomeLossFromDiscontinuedOperationBeforeIncomeTax us-gaap:DisposalGroupClassification, us-gaap:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations

us-gaap:DiscontinuedOperationIncomeLossFromDiscontinuedOperationBeforeIncomeTax

us-gaap:DiscontinuedOperationsDisposedOfBySale, achc:UKSales


Discontinued
Period End2021-06-302021-03-312020-06-302020-03-31
Value0.0-12.1691315
Percentage of DiscontinuedOperationIncomeLossFromDiscontinuedOperationBeforeIncomeTax0.0100.0100.0100.0

us-gaap:DiscontinuedOperationTaxEffectOfDiscontinuedOperation us-gaap:DisposalGroupClassification, us-gaap:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations

us-gaap:DiscontinuedOperationTaxEffectOfDiscontinuedOperation

us-gaap:DiscontinuedOperationsDisposedOfBySale, achc:UKSales


Discontinued
Period End2021-06-302021-03-312020-06-302020-03-31
Value0472000.0-961000.0-17000.0
Percentage of DiscontinuedOperationTaxEffectOfDiscontinuedOperation0.0100.0100.0100.0

us-gaap:DisposalGroupIncludingDiscontinuedOperationOperatingExpense us-gaap:DisposalGroupClassification, us-gaap:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations

us-gaap:DisposalGroupIncludingDiscontinuedOperationOperatingExpense

us-gaap:DiscontinuedOperationsDisposedOfBySale, achc:UKSales


Disposal
Period End2021-06-302021-03-312020-06-302020-03-31
Value0.074245258
Percentage of DisposalGroupIncludingDiscontinuedOperationOperatingExpense0.0100.0100.0100.0

us-gaap:DisposalGroupIncludingDiscontinuedOperationOtherExpense us-gaap:DisposalGroupClassification, us-gaap:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations

us-gaap:DisposalGroupIncludingDiscontinuedOperationOtherExpense

us-gaap:DiscontinuedOperationsDisposedOfBySale, achc:UKSales


Disposal
Period End2021-06-302021-03-312020-06-302020-03-31
Value0.06.6822630
Percentage of DisposalGroupIncludingDiscontinuedOperationOtherExpense0.0100.0100.0100.0

us-gaap:DisposalGroupIncludingDiscontinuedOperationRevenue us-gaap:DisposalGroupClassification, us-gaap:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations

us-gaap:DisposalGroupIncludingDiscontinuedOperationRevenue

us-gaap:DiscontinuedOperationsDisposedOfBySale, achc:UKSales


Disposal
Period End2021-06-302021-03-312020-06-302020-03-31
Value0.062258273
Percentage of DisposalGroupIncludingDiscontinuedOperationRevenue0.0100.0100.0100.0

us-gaap:EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations

us-gaap:EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations


Effect
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value04067000.03599000.01744000.0-113000.0-1143000.05334000.0-1567000.0-1320000.01099000.0-1252000.0
Percentage of EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations0.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ExtinguishmentOfDebtAmount us-gaap:DebtInstrument

us-gaap:ExtinguishmentOfDebtAmount

achc:FivePointZeroZeroZeroPercentSeniorNotesDueTwoThousandTwentyNine


Extinguishment
Period End2020-10-14
Value453
Percentage of ExtinguishmentOfDebtAmount100.0

achc:TrancheB3CreditFacility


Extinguishment
Period End2020-10-14
Value453
Percentage of ExtinguishmentOfDebtAmount100.0

us-gaap:ExtinguishmentOfDebtAmount us-gaap:DebtInstrument, us-gaap:SubsequentEventType

achc:FivePointZeroZeroZeroPercentSeniorNotesDueTwoThousandTwentyNine, us-gaap:SubsequentEvent


Extinguishment
Period End2020-10-14
Value453
Percentage of ExtinguishmentOfDebtAmount100.0

us-gaap:FairValueOfAssetsAcquired

us-gaap:FairValueOfAssetsAcquired


Fair
Period End2020-12-312019-12-312017-12-312017-09-302016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-30
Value-0.11.121190.0111.18413123721951562071428167920.010356-309.76810243655-265.5660.16893491-426.146
Percentage of FairValueOfAssetsAcquired100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:FinanceLeaseInterestExpense

us-gaap:FinanceLeaseInterestExpense


Finance
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value237000.0995000.0985000.0997000.0253000.0977000.0999000.0997000.0
Percentage of FinanceLeaseInterestExpense100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:FinanceLeaseInterestPaymentOnLiability

us-gaap:FinanceLeaseInterestPaymentOnLiability


Finance
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value237000.0995000.0985000.0997000.0253000.0977000.0999000.0997000.0
Percentage of FinanceLeaseInterestPaymentOnLiability100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:FinanceLeasePrincipalPayments

us-gaap:FinanceLeasePrincipalPayments


Finance
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value-2600000.01383000.0890000.0878000.0-1839000.01017000.0838000.0846000.0
Percentage of FinanceLeasePrincipalPayments100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:FinanceLeaseRightOfUseAssetAmortization

us-gaap:FinanceLeaseRightOfUseAssetAmortization


Finance
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value-2468000.01151000.01048000.01137000.0-2388000.01036000.01136000.01123000.0
Percentage of FinanceLeaseRightOfUseAssetAmortization100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:GainLossOnDispositionOfIntangibleAssets

us-gaap:GainLossOnDispositionOfIntangibleAssets


Gain
Period End2021-06-30
Value200000.0
Percentage of GainLossOnDispositionOfIntangibleAssets100.0

us-gaap:GoodwillForeignCurrencyTranslationGainLoss

us-gaap:GoodwillForeignCurrencyTranslationGainLoss


Goodwill
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-30
Value15-1.298-22.41824-10.823-9.1947.979-7.655-9.362-42.342275.5120268.782-219.40923
Percentage of GoodwillForeignCurrencyTranslationGainLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:GoodwillForeignCurrencyTranslationGainLoss us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments

us-gaap:OperatingSegments, achc:UnitedKingdomFacility


Goodwill
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value15-1.298-22.41824-10.823-9.1947.979-7.655-9.362-42.342275.5120268.782
Percentage of GoodwillForeignCurrencyTranslationGainLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:GoodwillWrittenOffRelatedToSaleOfBusinessUnit

us-gaap:GoodwillWrittenOffRelatedToSaleOfBusinessUnit


Goodwill
Period End2021-06-302016-12-31
Value1.8-213.789
Percentage of GoodwillWrittenOffRelatedToSaleOfBusinessUnit100.0100.0

us-gaap:ImpairmentOfLeasehold us-gaap:StatementBusinessSegments, us-gaap:Subsegments

us-gaap:ImpairmentOfLeasehold

achc:UnitedKingdomFacility, achc:ElderlyCareFacility


Impairment
Period End2020-09-30
Value16400.0
Percentage of ImpairmentOfLeasehold100.0

us-gaap:ImpairmentOfLongLivedAssetsToBeDisposedOf

us-gaap:ImpairmentOfLongLivedAssetsToBeDisposedOf


Impairment
Period End2021-06-30
Value23
Percentage of ImpairmentOfLongLivedAssetsToBeDisposedOf100.0

us-gaap:ImpairmentOfLongLivedAssetsToBeDisposedOf us-gaap:StatementBusinessSegments

achc:UnitedKingdomElderlyCareFacility


Impairment
Period End2020-09-30
Value3.8
Percentage of ImpairmentOfLongLivedAssetsToBeDisposedOf0.0

us-gaap:IncomeLossFromDiscontinuedOperationsNetOfTax

us-gaap:IncomeLossFromDiscontinuedOperationsNetOfTax


Income
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-30
Value0.0-12.641-828.697-7.50210121.8791721150.0280.080.0010.002-0.172-0.051-0.0060.037-0.119-0.182-0.074-0.316-0.123-0.138-0.1920.311-1.254-0.599-0.1220.008-0.484-0.083
Percentage of IncomeLossFromDiscontinuedOperationsNetOfTax0.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncomeLossFromDiscontinuedOperationsNetOfTax us-gaap:DisposalGroupClassification, us-gaap:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations

us-gaap:DiscontinuedOperationsDisposedOfBySale, achc:UKSales


Income
Period End2021-06-302021-03-312020-06-302020-03-31
Value0.0-12.6411415
Percentage of IncomeLossFromDiscontinuedOperationsNetOfTax0.0100.0127.7117.7

us-gaap:IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity

us-gaap:IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity


Income
Period End2021-06-302021-03-312020-06-302020-03-31
Value0.0-12.6411415
Percentage of IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity0.0100.0100.0100.0

us-gaap:IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare

us-gaap:IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare


Income
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-30
Value-0.01-0.14-9.42-0.090.130.140.020.210.240.18000000000000-0.0100-0.01-0.01-0.010.01-0.06-0.03-0.01
Percentage of IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.00.00.00.00.00.00.00.00.00.00.0100.00.00.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare

us-gaap:IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare


Income
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-30
Value0-0.14-9.28-0.080.120.150.020.20.240.19000000000000000-0.01-0.01-0.010.01-0.06-0.03-0.01
Percentage of IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare0.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncreaseDecreaseInAccountsPayableAndAccruedLiabilities

us-gaap:IncreaseDecreaseInAccountsPayableAndAccruedLiabilities


Increase
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-31
Value15-3.979-12.7594962-21.75514-24.554.641-15.70116-11.83624-3.36816-21.48812-16.99320-27.034217.49815-4.003-5.5871.2741.7152.3780.539-1.839-3.4441.5582.035-0.997-4.3327.622-6.2963.491-2.8622.5920.7682.848
Percentage of IncreaseDecreaseInAccountsPayableAndAccruedLiabilities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncreaseDecreaseInEmployeeRelatedLiabilities

us-gaap:IncreaseDecreaseInEmployeeRelatedLiabilities


Increase
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-31
Value5.9082.915-6.845175.236-6.033.0078.0452.617-5.8494.6996.685-0.4384.802-1.0511.22-5.72-3.4372.187-6.9132.501-6.347-7.239.1134.797-5.0223.0087.197.189-5.4076.270.9023.122-7.4914.6150.21.639-1.312-1.802-1.0161.57-0.4060.039
Percentage of IncreaseDecreaseInEmployeeRelatedLiabilities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncreaseDecreaseInOtherCurrentAssets

us-gaap:IncreaseDecreaseInOtherCurrentAssets


Increase
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-31
Value32-0.075-13.484-4.429-10.89319-2.568-6.6794.7165.875-10.8436.932-23.169135.291-5.642-14.571-5.8867.6755.717-0.8198.075-9.484-0.847-10.71233.333-6.1145.744-0.952-2.0055.764-1.1791.072-5.261.4631.570.6441.003-0.037-0.1970.8660.434
Percentage of IncreaseDecreaseInOtherCurrentAssets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncreaseDecreaseInOtherCurrentLiabilities

us-gaap:IncreaseDecreaseInOtherCurrentLiabilities


Increase
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-31
Value-6.911-4.211712171.431-1.8562.2620.6662.182-5.3680.942-1.3020.5094.1172.423.1152.1420.7380.0183.3740.3544.1650.4524.0390.58-1.0562.1040.9310.77-0.3573.080.729-0.271-0.825-0.3330.9860.8740.518-0.5260.6940.048-0.277
Percentage of IncreaseDecreaseInOtherCurrentLiabilities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncreaseDecreaseInOtherNoncurrentAssets

us-gaap:IncreaseDecreaseInOtherNoncurrentAssets


Increase
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-10.8463.57-1.2032.507-3.9191.0960.6030.131-0.366-0.2951.106
Percentage of IncreaseDecreaseInOtherNoncurrentAssets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IndefiniteLivedIntangibleAssetsPurchaseAccountingAdjustments

us-gaap:IndefiniteLivedIntangibleAssetsPurchaseAccountingAdjustments


Indefinite
Period End2020-09-302020-06-302020-03-312018-12-312018-09-302018-06-302018-03-31
Value3000.0-30000.0-13000.0000762000.0
Percentage of IndefiniteLivedIntangibleAssetsPurchaseAccountingAdjustments100.0100.0100.00.00.00.0100.0

us-gaap:IndefiniteLivedIntangibleAssetsPurchaseAccountingAdjustments us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments

us-gaap:OperatingSegments, achc:UnitedStatesFacilities


Indefinite
Period End2020-09-302020-06-302020-03-31
Value3000.0-30000.0-13000.0
Percentage of IndefiniteLivedIntangibleAssetsPurchaseAccountingAdjustments100.0100.0100.0

us-gaap:LaborAndRelatedExpense

us-gaap:LaborAndRelatedExpense


Labor
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-30
Value309304-163.8564504274404284284304294134174164113903853833763844084083412662582432051661681221171091031009466595856453959109.6819.458
Percentage of LaborAndRelatedExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:LeaseAndRentalExpense

us-gaap:LeaseAndRentalExpense


Lease
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-30
Value9.629.412-25.471212020212020201919202019191918181920149.8898.5428.2115.8863.3293.2142.8892.7692.6722.6562.3942.3271.5941.7752.2272.322.0771.6631.6340.3510.3270.325
Percentage of LeaseAndRentalExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:LeaseCost

us-gaap:LeaseCost


Lease
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value-27.702232222-27.508222222
Percentage of LeaseCost100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:LiabilitiesAssumed1

us-gaap:LiabilitiesAssumed1


Liabilities
Period End2020-12-312019-12-312017-12-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-30
Value0.00.3441.458111.184281575112.605119980.8467834-29.0643.3769.27151-9.1190.1022.73162-70.118
Percentage of LiabilitiesAssumed10.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:LineOfCreditFacilityInterestRateDuringPeriod us-gaap:DebtInstrument, us-gaap:LongtermDebtType, us-gaap:VariableRate

us-gaap:LineOfCreditFacilityInterestRateDuringPeriod

achc:TrancheB4RepricingAmendment, achc:AmendedAndRestatedCreditFacility, us-gaap:LondonInterbankOfferedRateLIBOR


Line
Period End2020-09-302020-06-302020-03-31
Value2.4750.01750.0075
Percentage of LineOfCreditFacilityInterestRateDuringPeriod100.0100.0100.0

us-gaap:LineOfCreditFacilityInterestRateDuringPeriod us-gaap:DebtInstrument, us-gaap:VariableRate

achc:TrancheB3RepricingAmendment, us-gaap:LondonInterbankOfferedRateLIBOR


Line
Period End2020-09-302020-06-302020-03-31
Value2.4750.01750.0075
Percentage of LineOfCreditFacilityInterestRateDuringPeriod100.0100.0100.0

us-gaap:LineOfCreditFacilityUnusedCapacityCommitmentFeePercentage us-gaap:CreditFacility, us-gaap:DebtInstrument

us-gaap:LineOfCreditFacilityUnusedCapacityCommitmentFeePercentage

us-gaap:RevolvingCreditFacility, achc:NewCreditFacility


Line
Period End2021-06-302021-03-31
Value00.25
Percentage of LineOfCreditFacilityUnusedCapacityCommitmentFeePercentage0.0100.0

us-gaap:NetCashProvidedByUsedInFinancingActivitiesContinuingOperations

us-gaap:NetCashProvidedByUsedInFinancingActivitiesContinuingOperations


Net
Period End2021-06-302021-03-312020-06-302020-03-312018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-31
Value-34.367-1648.489-21.809-12.71-4.734-32.532-4.319-9.486-13.737-379.3123.0138165313117022932664552724332150.00184
Percentage of NetCashProvidedByUsedInFinancingActivitiesContinuingOperations100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:NetCashProvidedByUsedInInvestingActivitiesContinuingOperations

us-gaap:NetCashProvidedByUsedInInvestingActivitiesContinuingOperations


Net
Period End2021-06-302021-03-312020-06-302020-03-312018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312011-12-312010-12-31
Value-49.4791368-58.995-60.06-78.686-103.35-86.867-88.214-58.095311-81.787-204.571-685.447-267.625-203.26-308.984-104.602-59.579-729.107-24.164-47.924-50.931-36.094-120.681-35.272-294.638-37.745-0.454
Percentage of NetCashProvidedByUsedInInvestingActivitiesContinuingOperations100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:NetCashProvidedByUsedInOperatingActivitiesContinuingOperations

us-gaap:NetCashProvidedByUsedInOperatingActivitiesContinuingOperations


Net
Period End2021-06-302021-03-312020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-31
Value907518616119848543127701457212884130571067912659985272184639217.3151917270.43410125.2915.451-27.2293.3194.7310.5722.781
Percentage of NetCashProvidedByUsedInOperatingActivitiesContinuingOperations100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:NetIncomeLossAttributableToRedeemableNoncontrollingInterest

us-gaap:NetIncomeLossAttributableToRedeemableNoncontrollingInterest


Net
Period End2021-06-302021-03-312020-12-31
Value1150000.0762000.01131000.0
Percentage of NetIncomeLossAttributableToRedeemableNoncontrollingInterest100.0100.0100.0

us-gaap:NoncontrollingInterestIncreaseFromBusinessCombination

us-gaap:NoncontrollingInterestIncreaseFromBusinessCombination


Noncontrolling
Period End2021-06-302021-03-312020-12-31
Value0.81.0-0.1
Percentage of NoncontrollingInterestIncreaseFromBusinessCombination100.0100.0100.0

us-gaap:OperatingLeaseCost

us-gaap:OperatingLeaseCost


Operating
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value-22.386161616-23.009151616
Percentage of OperatingLeaseCost100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OperatingLeaseExpense

us-gaap:OperatingLeaseExpense


Operating
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value-25.471212020-25.373202020
Percentage of OperatingLeaseExpense100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OperatingLeasePayments

us-gaap:OperatingLeasePayments


Operating
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value-20.887161515-20.49141515
Percentage of OperatingLeasePayments100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAfterTax

us-gaap:OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAfterTax


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-30
Value0.00.019-32.894-21.566-0.55843-39.5031117
Percentage of OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAfterTax0.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAfterTax us-gaap:StatementEquityComponents

achc:ChangeInFairValueOfDerivativeInstruments


Other
Period End2021-06-302021-03-312020-12-312020-09-30
Value0.00.019-32.894-21.566
Percentage of OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAfterTax0.0100.0100.0100.0

us-gaap:OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationTax

us-gaap:OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationTax


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-30
Value0.00.1-11.9-8.0-0.216-14.35.09.2
Percentage of OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationTax0.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherCostAndExpenseOperating

us-gaap:OtherCostAndExpenseOperating


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-30
Value7372-25.95979298939294938890878882828383817980705757514031312423212220161211109.147.5185.0185.9591.8861.891.736
Percentage of OtherCostAndExpenseOperating100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherNoncashIncomeExpense

us-gaap:OtherNoncashIncomeExpense


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-30
Value909000.0-1737000.0-231000.0-1962000.01045000.0107000.0409000.0-2049000.0-208000.0-2187000.0-9346000.0-1985000.03000.0-1043000.0-740000.0-4114000.0-2733000.0-3825000.0-3984000.0-27000.0178000.0-882000.0-493000.0-430000.0-314000.0-378000.0-325000.0-138000.0-12000.0-13000.0-5000.0-2000.01000.0-15000.0-6000.030000.0-2000.0-19000.0-2000.00
Percentage of OtherNoncashIncomeExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0

us-gaap:OtherOperatingIncome us-gaap:LoansInsuredOrGuaranteedByGovernmentAuthorities, us-gaap:UnusualOrInfrequentItem

us-gaap:OtherOperatingIncome

achc:PublicHealthAndSocialServicesEmergencyFund, achc:CoronavirusAidReliefAndEconomicSecurityAct


Other
Period End2020-12-312020-06-30
Value3218
Percentage of OtherOperatingIncome100.0100.0

us-gaap:PaymentsForProceedsFromDerivativeInstrumentInvestingActivities

us-gaap:PaymentsForProceedsFromDerivativeInstrumentInvestingActivities


Payments
Period End2021-06-302021-03-312019-12-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302014-12-31
Value0.0840.00.0-0.0150.237-0.7450.01.0180.0
Percentage of PaymentsForProceedsFromDerivativeInstrumentInvestingActivities0.0100.00.00.0100.0100.0100.00.0100.00.0

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
Value-4.027-0.9262.6315.8853.1771.672-1.354-1.904-9.881-0.613-1.995-0.223-0.7294.066-2.9610.1240.8875.0511.3350.051-0.1241.2084.2120.4060.0980.3830.180.2940.2610.1780.8380.5340.4210.1331.6480.169-1.312-0.0880.0430.108
Percentage of PaymentsForProceedsFromOtherInvestingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:PaymentsOfDebtExtinguishmentCosts us-gaap:DebtInstrumentRedemptionPeriod, us-gaap:SubsequentEventType

us-gaap:PaymentsOfDebtExtinguishmentCosts

achc:RedemptionOfFivePointTwoSixFivePercentageAndSixPointFiveZeroZeroPercentageSeniorNotes, us-gaap:SubsequentEvent


Payments
Period End2021-01-29
Value430
Percentage of PaymentsOfDebtExtinguishmentCosts100.0

us-gaap:PaymentsOfDebtExtinguishmentCosts us-gaap:DisposalGroupClassification, us-gaap:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations

us-gaap:DiscontinuedOperationsDisposedOfBySale, achc:UKSales


Payments
Period End2021-03-31
Value1640
Percentage of PaymentsOfDebtExtinguishmentCosts0.0

us-gaap:PaymentsOfDebtIssuanceCosts

us-gaap:PaymentsOfDebtIssuanceCosts


Payments
Period End2021-06-302021-03-312020-12-312020-09-302016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-30
Value-1.9719.9357.0750.6250.9010.2371.344340.8372.8090.584222.0845.0992.3193.4910.00.00.1544.1533.3540.0590.091.0486.2040.103
Percentage of PaymentsOfDebtIssuanceCosts100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:PaymentsOfDividendsMinorityInterest

us-gaap:PaymentsOfDividendsMinorityInterest


Payments
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-31
Value256000.0377000.0263000.0202000.0187000.0264000.0
Percentage of PaymentsOfDividendsMinorityInterest100.0100.0100.0100.0100.0100.0

us-gaap:ProceedsFromDivestitureOfBusinesses

us-gaap:ProceedsFromDivestitureOfBusinesses


Proceeds
Period End2021-06-302021-03-312016-11-30
Value4.31511320
Percentage of ProceedsFromDivestitureOfBusinesses100.0100.0100.0

us-gaap:ProceedsFromDivestitureOfBusinesses us-gaap:DisposalGroupClassification, us-gaap:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations

us-gaap:DiscontinuedOperationsDisposedOfBySale, achc:UKSales


Proceeds
Period End2021-01-19
Value1525
Percentage of ProceedsFromDivestitureOfBusinesses0.0

us-gaap:ProceedsFromDivestitureOfBusinesses us-gaap:DisposalGroupClassification, us-gaap:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations, us-gaap:SubsequentEventType

us-gaap:DiscontinuedOperationsDisposedOfBySale, achc:UKSales, us-gaap:SubsequentEvent


Proceeds
Period End2021-01-19
Value1525
Percentage of ProceedsFromDivestitureOfBusinesses0.0

us-gaap:ProceedsFromIssuanceOfSecuredDebt us-gaap:DebtInstrumentRedemptionPeriod, us-gaap:SubsequentEventType

us-gaap:ProceedsFromIssuanceOfSecuredDebt

achc:RedemptionOfFivePointTwoSixFivePercentageAndSixPointFiveZeroZeroPercentageSeniorNotes, us-gaap:SubsequentEvent


Proceeds
Period End2021-01-29
Value625
Percentage of ProceedsFromIssuanceOfSecuredDebt100.0

us-gaap:ProceedsFromLinesOfCredit

us-gaap:ProceedsFromLinesOfCredit


Proceeds
Period End2021-06-302021-03-312020-12-312020-09-302019-12-312019-09-302019-06-302019-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-30
Value0.04300.00.00.00.05.0710.0211005815813087930.0171-90.51501000.0
Percentage of ProceedsFromLinesOfCredit0.0100.00.00.00.00.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.00.0

us-gaap:ProceedsFromPaymentsForOtherFinancingActivities

us-gaap:ProceedsFromPaymentsForOtherFinancingActivities


Proceeds
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-30
Value-136000.0-6793000.0371000.0-1173000.0-1201000.0-1143000.0-917000.0-1578000.0-848000.0-3497000.04708000.0-1801000.0-2468000.0-2704000.0-963000.03919000.0-1405000.0-865000.0-2016000.0-998000.0-599000.0-224000.0-46000.0-224000.0
Percentage of ProceedsFromPaymentsForOtherFinancingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ProceedsFromSaleOfPropertyPlantAndEquipment

us-gaap:ProceedsFromSaleOfPropertyPlantAndEquipment


Proceeds
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value0.7650.134-2.4171.0971.2050.2074.6061.821100.928
Percentage of ProceedsFromSaleOfPropertyPlantAndEquipment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ProfessionalFees

us-gaap:ProfessionalFees


Professional
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-30
Value3431-62.7846158636362585760595354535346434747503933303022161410109.8778.9569.3249.0145.4984.694.6584.2163.9332.3522.3410.3750.5240.265
Percentage of ProfessionalFees100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:RepaymentsOfLongTermLinesOfCredit

us-gaap:RepaymentsOfLongTermLinesOfCredit


Repayments
Period End2021-06-302021-03-312020-12-312020-09-302019-12-312019-09-302016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302014-12-312014-09-302013-12-312013-09-30
Value352700.00.00.0651710.00.01660.01301647.00.00.0
Percentage of RepaymentsOfLongTermLinesOfCredit100.0100.00.00.00.0100.0100.00.00.0100.00.0100.0100.0100.00.00.0

us-gaap:RepaymentsOfLongTermLinesOfCredit us-gaap:DebtInstrument

achc:NewCreditFacility


Repayments
Period End2021-06-30
Value35
Percentage of RepaymentsOfLongTermLinesOfCredit100.0

us-gaap:RepaymentsOfOtherLongTermDebt

us-gaap:RepaymentsOfOtherLongTermDebt


Repayments
Period End2021-06-30
Value3300000.0
Percentage of RepaymentsOfOtherLongTermDebt100.0

us-gaap:RepaymentsOfSecuredDebt

us-gaap:RepaymentsOfSecuredDebt


Repayments
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-31
Value9.428101010288.2468.2468.2468.2468.2468.8928.6388.6378.6383.8721616138.1527.9387.9377.9382.071.8751.8751.8752.0553.750.01.8750.02.02.02.01.6881.6871.6650.0230.067
Percentage of RepaymentsOfSecuredDebt100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:RepaymentsOfSeniorDebt

us-gaap:RepaymentsOfSeniorDebt


Repayments
Period End2021-06-302021-03-312020-12-312020-09-30
Value3.33222244590.0
Percentage of RepaymentsOfSeniorDebt100.0100.0100.00.0

us-gaap:RightOfUseAssetObtainedInExchangeForFinanceLeaseLiability

us-gaap:RightOfUseAssetObtainedInExchangeForFinanceLeaseLiability


Right
Period End2020-09-302020-06-302020-03-312019-09-302019-06-302019-03-31
Value1434000.0509000.0953000.0683000.0747000.01027000.0
Percentage of RightOfUseAssetObtainedInExchangeForFinanceLeaseLiability100.0100.0100.0100.0100.0100.0

us-gaap:RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability

us-gaap:RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability


Right
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value-0.2754.621106.0826.1864.9497.0123.662
Percentage of RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresWeightedAverageGrantDateFairValue us-gaap:AwardType

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresWeightedAverageGrantDateFairValue

achc:RestrictedStockAward


Share
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-30
Value4.5132.5-0.37-0.37-0.2535.550.180.97-11.0743.42-0.79-0.89-1.2750.52-0.39-0.51-3.9659.89-0.12-0.88-1.7759.790.4-0.442.3547.240.363.17-0.7633.591.81.75
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresWeightedAverageGrantDateFairValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:RestrictedStockUnitsRSU


Share
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-31
Value1.260042.09-0.030-2.7747.9700055.44000000000000
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresWeightedAverageGrantDateFairValue-340.5-0.0-0.0118.4-16.70.025.0110.5-0.0-0.0-0.0109.7-0.0-0.0-0.00.0-0.0-0.0-0.00.00.0-0.00.00.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue us-gaap:AwardType

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue

achc:RestrictedStockAward


Share
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-30
Value1.9155.970.420.13-0.125.3700.30.6227.850.330-0.1636.67-0.840.10.1442.98-3.61-0.08-0.6559.7200.590.4361.650.1-0.63-1.2350.751.030.64
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:RestrictedStockUnitsRSU


Share
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-30
Value00010.60-1.4700042.2600043.2300056.9500061.7700050.7500
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue0.00.0-0.041.80.0-490.00.00.0-0.0115.2-0.00.00.0100.6-0.0-0.0-0.095.40.00.00.0100.20.0-0.0-0.0100.00.00.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue us-gaap:AwardType

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue

achc:RestrictedStockAward


Share
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-30
Value1.3429.33-1.14-0.220.5136.73-2.930.31-0.2547.1-2.83-0.2-0.2253.66-0.71-0.480.4453.820.30.09-0.3947.18-1.443.9-0.5633.03-1.030.490.3123.04-0.560.02
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:RestrictedStockUnitsRSU


Share
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-30
Value042.300042.0900049.6400058.6700052.7100032.3800021.8100
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue0.0144.2-0.0-0.00.0114.6-0.0-0.0-0.092.5-0.0-0.00.0109.00.00.0-0.0111.7-0.00.0-0.098.0-0.00.00.094.7-0.00.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate


Share
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-30
Value-11.051.01.039.6100.390000.380.37-0.010.010.370000.330000.3300.02-0.020.350000.3600-0.010.4100
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate100.0100.0100.0100.00.0100.00.00.00.0100.0100.0100.0100.0100.00.00.00.0100.00.00.00.0100.00.0100.0100.0100.00.00.00.0100.00.00.0100.0100.00.00.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate


Share
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-30
Value-1.42.301.58400.0160000.0240.022000.0220000.020.001-0.00100.014-0.0003-0.00370.0040.0150000.01700.001-0.0020.011-0.0010.002
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate100.0100.00.0100.00.0100.00.00.00.0100.0100.00.00.0100.00.00.00.0100.0100.0100.00.0100.0100.0100.0100.0100.00.00.00.0100.00.0100.0100.0100.0100.0100.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue


Share
Period End2021-06-302021-03-312020-12-312020-09-302019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-31
Value2268000.07300000.0820000.019000.0162000.039000.0232000.0225000.0218000.031000.037000.097000.0108000.0356000.0944000.0228000.0-11000.01063000.0200000.0278000.0336000.04357000.04211000.0986000.00868000.02088000.02038000.0
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriodWeightedAverageExercisePrice

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriodWeightedAverageExercisePrice


Share
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-31
Value2.4537.44-0.790.04-0.5841.0-0.45-1.20.0642.43-0.4-0.740.5651.41-0.02-0.410.2754.870.52-0.69-0.6957.990.62-1.950.6247.24-5.82.280.3830.991.681.434.7915.6
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriodWeightedAverageExercisePrice100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue


Share
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-30
Value-5.9426.530.11-0.03012.2907.14010.4513.670-0.0513.66-0.280.020.0814.57-0.39-0.22019.57-0.01-2.512.9121.39-0.66-0.27-0.1618.230.30.192.628.510.120.01
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue100.0100.0100.0100.00.0100.00.0100.00.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice

us-gaap:ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice


Share
Period End2021-06-302021-03-312020-12-312020-09-302019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-31
Value2.3336.160.90-2.090.594.5915.96-6.84-1.25.2720.6-0.56-13.6919.6720.5-0.481.42-1.0232.0-1.920.993.0720.59-0.381.861.8811.57-0.850.082.187.95
Percentage of ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice

us-gaap:ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice


Share
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-31
Value0.0157.140.01-0.6033.7200.25028.250.180-0.137.46-0.860.120.2242.77-1.280-0.4659.7200.70.7261.650.12-0.64-0.4350.750.750.460.1229.22
Percentage of ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice100.0100.0100.0100.00.0100.00.0100.00.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ShortTermLeaseCost

us-gaap:ShortTermLeaseCost


Short
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value-167000.01407000.01171000.01147000.0482000.01378000.01483000.01447000.0
Percentage of ShortTermLeaseCost100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:StockIssuedDuringPeriodValueStockOptionsExercised

us-gaap:StockIssuedDuringPeriodValueStockOptionsExercised


Stock
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312014-12-312014-09-302013-12-312013-09-302013-06-302012-12-312012-09-30
Value5.622121.6770.180.170.0540.1540.0680.2930.130.020.1280.0960.0120.6311.2210.2050.0311.0720.1720.1090.1960.00.0-1.8870.11.70.4450.328
Percentage of StockIssuedDuringPeriodValueStockOptionsExercised100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.0100.0100.0100.0100.0100.0

us-gaap:StockIssuedDuringPeriodValueStockOptionsExercised us-gaap:StatementEquityComponents

us-gaap:AdditionalPaidInCapital


Stock
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302012-12-312012-09-30
Value5.62121.6760.180.169-0.0010.0540.1530.0680.2910.130.0190.1280.0940.0110.6311.220.2030.031.0710.1720.1060.1961.6170.0-0.0020.00.00.4450.327
Percentage of StockIssuedDuringPeriodValueStockOptionsExercised100.099.999.9100.099.40.0100.099.4100.099.3100.095.0100.097.991.7100.099.999.096.899.9100.097.2100.00.00.00.00.00.0100.099.7

us-gaap:CommonStock


Stock
Period End2021-06-302021-03-312020-12-312020-06-302020-03-312019-09-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302012-12-312012-09-30
Value0.0020.0070.0010.0010.0010.0010.0020.00.0010.00.0020.0010.00.0010.0020.0010.0010.00.0030.00.0020.00.0020.00.00.00.001
Percentage of StockIssuedDuringPeriodValueStockOptionsExercised0.00.10.10.60.00.60.70.05.00.02.18.30.00.11.03.20.10.02.80.00.00.00.00.00.00.00.3

us-gaap:SuppliesExpense

us-gaap:SuppliesExpense


Supplies
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value2221-6.0613130313130302930293029292828
Percentage of SuppliesExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:UnrecognizedTaxBenefitsIncomeTaxPenaltiesExpense

us-gaap:UnrecognizedTaxBenefitsIncomeTaxPenaltiesExpense


Unrecognized
Period End2021-06-302021-03-312020-12-31
Value7.947-4.9
Percentage of UnrecognizedTaxBenefitsIncomeTaxPenaltiesExpense100.0100.0100.0

us-gaap:VariableLeaseCost

us-gaap:VariableLeaseCost


Variable
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value-1680000.01311000.01560000.01310000.0-1193000.01229000.01044000.0886000.0
Percentage of VariableLeaseCost100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:WeightedAverageNumberDilutedSharesOutstandingAdjustment

us-gaap:WeightedAverageNumberDilutedSharesOutstandingAdjustment


Weighted
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-06-302016-03-312015-09-302015-06-302015-03-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-09-302012-06-302012-03-31
Value1748000.01699000.0945000.0736000.0206000.0210000.0219000.0189000.0193000.0164000.0173000.0155000.0126000.0146000.0323000.0477000.0446000.0439000.0364000.0234000.0203000.0366000.0303000.0273000.0339000.0234000.0188000.0213000.0
Percentage of WeightedAverageNumberDilutedSharesOutstandingAdjustment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:WriteOffOfDeferredDebtIssuanceCost us-gaap:DebtInstrumentRedemptionPeriod

us-gaap:WriteOffOfDeferredDebtIssuanceCost

achc:RedemptionOfSixPointFiveZeroZeroPercentageSeniorNotes


Write
Period End2021-03-01
Value4200000.0
Percentage of WriteOffOfDeferredDebtIssuanceCost100.0

achc:AccruedExpenseCurrent

achc:AccruedExpenseCurrent


Accrued
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
Value242928835241504739404442323537
Percentage of AccruedExpenseCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

achc:DebtInstrumentUnamortizedIssuanceCostsDiscountPremiumNet

achc:DebtInstrumentUnamortizedIssuanceCostsDiscountPremiumNet


Debt
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312014-12-31
Value151730293128313436394143464850525557596166673517
Percentage of DebtInstrumentUnamortizedIssuanceCostsDiscountPremiumNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

achc:DeferredTaxAssetsInterestCarryforward

achc:DeferredTaxAssetsInterestCarryforward


Deferred
Period End2020-12-312019-12-312018-12-312017-12-31
Value3.37459325.074
Percentage of DeferredTaxAssetsInterestCarryforward100.0100.0100.0100.0

achc:DeferredTaxAssetsLeaseRightOfUseLiabilities

achc:DeferredTaxAssetsLeaseRightOfUseLiabilities


Deferred
Period End2020-12-312019-12-31
Value2426
Percentage of DeferredTaxAssetsLeaseRightOfUseLiabilities100.0100.0

achc:DeferredTaxAssetsLeases

achc:DeferredTaxAssetsLeases


Deferred
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-31
Value846000.03436000.05374000.05332000.02926000.02675000.0850000.01083000.01605000.0
Percentage of DeferredTaxAssetsLeases100.0100.0100.0100.0100.0100.0100.0100.0100.0

achc:DeferredTaxAssetsNetOperatingLossAndTaxCreditCarryforwards

achc:DeferredTaxAssetsNetOperatingLossAndTaxCreditCarryforwards


Deferred
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-31
Value7.68225272937475.0820.9053.08710
Percentage of DeferredTaxAssetsNetOperatingLossAndTaxCreditCarryforwards100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

achc:DeferredTaxAssetsTaxDeferredAccruedExpense

achc:DeferredTaxAssetsTaxDeferredAccruedExpense


Deferred
Period End2020-12-312019-12-312018-12-312017-12-312015-12-312014-12-312013-12-312012-12-312011-12-31
Value111.4964.2313.1145.3240.0410.0912.5221.731
Percentage of DeferredTaxAssetsTaxDeferredAccruedExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0

achc:DeferredTaxAssetsTaxDeferredInsuranceReserves

achc:DeferredTaxAssetsTaxDeferredInsuranceReserves


Deferred
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-31
Value1816131317154.6212.680.359
Percentage of DeferredTaxAssetsTaxDeferredInsuranceReserves100.0100.0100.0100.0100.0100.0100.0100.0100.0

achc:DeferredTaxLiabilitiesLeaseRightOfUseAssets

achc:DeferredTaxLiabilitiesLeaseRightOfUseAssets


Deferred
Period End2020-12-312019-12-31
Value2224
Percentage of DeferredTaxLiabilitiesLeaseRightOfUseAssets100.0100.0

achc:DerivativeAssetsLiabilitiesAtCarryingValueNet us-gaap:FairValueByMeasurementBasis

achc:DerivativeAssetsLiabilitiesAtCarryingValueNet

us-gaap:CarryingReportedAmountFairValueDisclosure


Derivative
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302018-12-312018-03-312017-12-31
Value-84.584-39.859-8.683-9.015-68.915-15.89660-15.1612
Percentage of DerivativeAssetsLiabilitiesAtCarryingValueNet100.0100.0100.0100.0100.0100.0100.0100.0100.0

achc:DerivativeInstrumentsAtCarryingValueNet us-gaap:FairValueByMeasurementBasis

achc:DerivativeInstrumentsAtCarryingValueNet

us-gaap:CarryingReportedAmountFairValueDisclosure


Derivative
Period End2020-12-312019-12-31
Value8468
Percentage of DerivativeInstrumentsAtCarryingValueNet100.0100.0

achc:DisposalGroupIncludingDiscontinuedOperationOperatingLeaseLiabilitiesCurrent us-gaap:DisposalGroupClassification, us-gaap:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations

achc:DisposalGroupIncludingDiscontinuedOperationOperatingLeaseLiabilitiesCurrent

us-gaap:DiscontinuedOperationsDisposedOfBySale, achc:UKSales


Disposal
Period End2020-12-312019-12-31
Value1111
Percentage of DisposalGroupIncludingDiscontinuedOperationOperatingLeaseLiabilitiesCurrent100.0100.0

achc:DisposalGroupIncludingDiscontinuedOperationOperatingLeaseLiabilitiesNoncurrent us-gaap:DisposalGroupClassification, us-gaap:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations

achc:DisposalGroupIncludingDiscontinuedOperationOperatingLeaseLiabilitiesNoncurrent

us-gaap:DiscontinuedOperationsDisposedOfBySale, achc:UKSales


Disposal
Period End2020-12-312019-12-31
Value387416
Percentage of DisposalGroupIncludingDiscontinuedOperationOperatingLeaseLiabilitiesNoncurrent100.0100.0

achc:DisposalGroupIncludingDiscontinuedOperationOperatingLeaseRightOfUseAssetsNoncurrent us-gaap:DisposalGroupClassification, us-gaap:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations

achc:DisposalGroupIncludingDiscontinuedOperationOperatingLeaseRightOfUseAssetsNoncurrent

us-gaap:DiscontinuedOperationsDisposedOfBySale, achc:UKSales


Disposal
Period End2020-12-312019-12-31
Value341404
Percentage of DisposalGroupIncludingDiscontinuedOperationOperatingLeaseRightOfUseAssetsNoncurrent100.0100.0

achc:FinanceLeaseLiabilityPaymentsDueAfterYearFour

achc:FinanceLeaseLiabilityPaymentsDueAfterYearFour


Finance
Period End2020-09-30
Value25
Percentage of FinanceLeaseLiabilityPaymentsDueAfterYearFour100.0

achc:GovernmentReliefFundsLiabilityCurrent

achc:GovernmentReliefFundsLiabilityCurrent


Government
Period End2021-06-302021-03-312020-12-312020-09-30
Value336.2855.49532
Percentage of GovernmentReliefFundsLiabilityCurrent100.0100.0100.0100.0

achc:IntangibleAssetsAccumulatedAmortizationCarryingAmount

achc:IntangibleAssetsAccumulatedAmortizationCarryingAmount


Intangible
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312015-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312011-12-31
Value1131000.01131000.01131000.03231000.03231000.03231000.03231000.03231000.03247000.03247000.03247000.03247000.03247000.03247000.03247000.03247000.03247000.03247000.03247000.02997000.02346000.02208000.02069000.01931000.01769000.01580000.01462000.01259000.0632000.0
Percentage of IntangibleAssetsAccumulatedAmortizationCarryingAmount100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

achc:LeaseLiability

achc:LeaseLiability


Lease
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value145557553554581557569584
Percentage of LeaseLiability100.0100.0100.0100.0100.0100.0100.0100.0

achc:LeaseRightOfUseAsset

achc:LeaseRightOfUseAsset


Lease
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value131508518519546524536552
Percentage of LeaseRightOfUseAsset100.0100.0100.0100.0100.0100.0100.0100.0

achc:LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFour

achc:LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFour


Lessee
Period End2020-09-30
Value670
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFour100.0

achc:NetCostReportSettlementDueFromDueTo

achc:NetCostReportSettlementDueFromDueTo


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-31
Value2.1432.0635.8189.2929.7161413121210101012119.07.44.21.90.81.1
Percentage of NetCostReportSettlementDueFromDueTo100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

achc:OtherLongTermDebtFairValue us-gaap:FairValueByMeasurementBasis

achc:OtherLongTermDebtFairValue

us-gaap:EstimateOfFairValueFairValueDisclosure


Other
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value3319000.03625000.03932000.04235000.04533000.04821000.05110000.05396000.05677000.05953000.0
Percentage of OtherLongTermDebtFairValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

achc:WorkersCompensationDeposits

achc:WorkersCompensationDeposits


Workers
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312014-12-312013-12-312012-12-31
Value12121210.010.010.010.010.010.010.010.010.010.010.010.010.010.010.010.07.57.57.57.54.84.11.86
Percentage of WorkersCompensationDeposits100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AccrualForTaxesOtherThanIncomeTaxesCurrent

us-gaap:AccrualForTaxesOtherThanIncomeTaxesCurrent


Accrual
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312014-12-312013-12-31
Value8265000.06143000.06763000.07656000.06377000.04222000.04755000.06537000.06077000.04641000.04136000.05570000.04530000.03666000.03945000.05257000.04224000.02658000.02732000.04474000.03829000.02829000.02951000.02069000.01819000.0
Percentage of AccrualForTaxesOtherThanIncomeTaxesCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AccruedInsuranceCurrent

us-gaap:AccruedInsuranceCurrent


Accrued
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312014-12-312013-12-31
Value9.79.79.74.7314.7314.7314.7314.9564.9564.9564.9564.9566.888222211111111101010104.2394.139
Percentage of AccruedInsuranceCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AccumulatedAmortizationDeferredFinanceCosts

us-gaap:AccumulatedAmortizationDeferredFinanceCosts


Accumulated
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-31
Value5646362721129.56.13.51.2
Percentage of AccumulatedAmortizationDeferredFinanceCosts100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AssetsHeldForSaleNotPartOfDisposalGroup us-gaap:BalanceSheetLocation

us-gaap:AssetsHeldForSaleNotPartOfDisposalGroup

us-gaap:OtherAssets


Assets
Period End2020-12-312020-09-302020-06-302020-03-312019-12-31
Value1728283031
Percentage of AssetsHeldForSaleNotPartOfDisposalGroup100.0100.0100.0100.0100.0

us-gaap:AssetsHeldForSaleNotPartOfDisposalGroupCurrent

us-gaap:AssetsHeldForSaleNotPartOfDisposalGroupCurrent


Assets
Period End2021-06-302021-03-31
Value1516
Percentage of AssetsHeldForSaleNotPartOfDisposalGroupCurrent100.0100.0

us-gaap:AssetsOfDisposalGroupIncludingDiscontinuedOperation us-gaap:DisposalGroupClassification, us-gaap:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations

us-gaap:AssetsOfDisposalGroupIncludingDiscontinuedOperation

us-gaap:DiscontinuedOperationsDisposedOfBySale, achc:UKSales


Assets
Period End2020-12-312019-12-31
Value18092616
Percentage of AssetsOfDisposalGroupIncludingDiscontinuedOperation100.0100.0

us-gaap:AssetsOfDisposalGroupIncludingDiscontinuedOperationCurrent

us-gaap:AssetsOfDisposalGroupIncludingDiscontinuedOperationCurrent


Assets
Period End2020-12-312019-12-31
Value180988
Percentage of AssetsOfDisposalGroupIncludingDiscontinuedOperationCurrent100.0100.0

us-gaap:AssetsOfDisposalGroupIncludingDiscontinuedOperationCurrent us-gaap:DisposalGroupClassification, us-gaap:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations

us-gaap:DiscontinuedOperationsDisposedOfBySale, achc:UKSales


Assets
Period End2020-12-312019-12-31
Value14088
Percentage of AssetsOfDisposalGroupIncludingDiscontinuedOperationCurrent7.8100.0

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations


Cash
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302017-12-312016-12-31
Value1851783783382118112492434350486757
Percentage of CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:CashFlowHedgeDerivativeInstrumentLiabilitiesAtFairValue us-gaap:DisposalGroupClassification, us-gaap:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations

us-gaap:CashFlowHedgeDerivativeInstrumentLiabilitiesAtFairValue

us-gaap:DiscontinuedOperationsDisposedOfBySale, achc:UKSales


Cash
Period End2021-01-19
Value85
Percentage of CashFlowHedgeDerivativeInstrumentLiabilitiesAtFairValue100.0

us-gaap:CashFlowHedgeDerivativeInstrumentLiabilitiesAtFairValue us-gaap:DisposalGroupClassification, us-gaap:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations, us-gaap:SubsequentEventType

us-gaap:DiscontinuedOperationsDisposedOfBySale, achc:UKSales, us-gaap:SubsequentEvent


Cash
Period End2021-01-19
Value85
Percentage of CashFlowHedgeDerivativeInstrumentLiabilitiesAtFairValue100.0

us-gaap:ContractWithCustomerLiability us-gaap:FairValueByLiabilityClass

us-gaap:ContractWithCustomerLiability

achc:UnearnedRevenue


Contract
Period End2021-06-302021-03-312020-12-31
Value414947
Percentage of ContractWithCustomerLiability100.0100.0100.0

us-gaap:ContractWithCustomerLiability us-gaap:FairValueByLiabilityClass, us-gaap:StatementBusinessSegments

achc:UnearnedRevenue, achc:UnitedKingdomFacility


Contract
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-31
Value302730363434403130313830
Percentage of ContractWithCustomerLiability0.00.00.00.00.00.00.00.00.00.00.00.0

achc:UnearnedRevenue, achc:UnitedStatesFacilities


Contract
Period End2020-12-312020-09-302020-06-302019-12-31
Value4747471.896
Percentage of ContractWithCustomerLiability100.00.00.00.0

us-gaap:ContractWithCustomerLiability us-gaap:MajorCustomers, us-gaap:BalanceSheetLocation, us-gaap:TypeOfArrangement, us-gaap:UnusualOrInfrequentItem

achc:Medicare, achc:OtherAccruedLiabilities, achc:CMSAcceleratedAndAdvancePaymentProgram, achc:CoronavirusAidReliefAndEconomicSecurityAct


Contract
Period End2021-06-302021-03-312020-12-312020-09-30
Value410.03593524
Percentage of ContractWithCustomerLiability99.90.176.10.0

achc:Medicare, us-gaap:OtherLiabilities, achc:CMSAcceleratedAndAdvancePaymentProgram, achc:CoronavirusAidReliefAndEconomicSecurityAct


Contract
Period End2021-03-312020-12-312020-09-30
Value0.01131122
Percentage of ContractWithCustomerLiability0.023.90.0

us-gaap:DebtInstrumentCarryingAmount

us-gaap:DebtInstrumentCarryingAmount


Debt
Period End2020-12-312015-12-31
Value31532276
Percentage of DebtInstrumentCarryingAmount100.0100.0

us-gaap:DebtInstrumentFaceAmount us-gaap:DebtInstrument

us-gaap:DebtInstrumentFaceAmount

achc:FivePointZeroZeroZeroPercentSeniorNotesDueTwoThousandTwentyNine


Debt
Period End2020-10-14
Value475
Percentage of DebtInstrumentFaceAmount100.0

us-gaap:DeferredFinanceCostsNet

us-gaap:DeferredFinanceCostsNet


Deferred
Period End2020-12-312019-12-312018-12-312017-12-312016-12-31
Value2929374655
Percentage of DeferredFinanceCostsNet100.0100.0100.0100.0100.0

us-gaap:DeferredIncomeTaxAssetsNet

us-gaap:DeferredIncomeTaxAssetsNet


Deferred
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302019-12-31
Value3145000.03177000.03209000.03242000.03274000.03339000.0
Percentage of DeferredIncomeTaxAssetsNet100.0100.0100.0100.0100.0100.0

us-gaap:DeferredIncomeTaxLiabilities

us-gaap:DeferredIncomeTaxLiabilities


Deferred
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-31
Value1462631541301586760
Percentage of DeferredIncomeTaxLiabilities100.0100.0100.0100.0100.0100.0100.0

us-gaap:DeferredRevenueCurrent

us-gaap:DeferredRevenueCurrent


Deferred
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-31
Value414935557531383535403231323831252322282423240.446
Percentage of DeferredRevenueCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DeferredTaxAssetsGross

us-gaap:DeferredTaxAssetsGross


Deferred
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-31
Value3412231027499109352218
Percentage of DeferredTaxAssetsGross100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DeferredTaxAssetsInvestmentInSubsidiaries

us-gaap:DeferredTaxAssetsInvestmentInSubsidiaries


Deferred
Period End2020-12-312012-12-312011-12-31
Value2390.00.0
Percentage of DeferredTaxAssetsInvestmentInSubsidiaries100.00.00.0

us-gaap:DeferredTaxAssetsOperatingLossCarryforwardsForeign

us-gaap:DeferredTaxAssetsOperatingLossCarryforwardsForeign


Deferred
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-31
Value0.1708193921423
Percentage of DeferredTaxAssetsOperatingLossCarryforwardsForeign100.0100.0100.0100.0100.0100.0100.0

us-gaap:DeferredTaxAssetsOperatingLossCarryforwardsStateAndLocal

us-gaap:DeferredTaxAssetsOperatingLossCarryforwardsStateAndLocal


Deferred
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-31
Value1702202362562232137.1183945
Percentage of DeferredTaxAssetsOperatingLossCarryforwardsStateAndLocal100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DeferredTaxAssetsOther

us-gaap:DeferredTaxAssetsOther


Deferred
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-31
Value132.5622.2841.7472.0383.5511.9891.5531.820.585
Percentage of DeferredTaxAssetsOther100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DeferredTaxAssetsTaxCreditCarryforwards

us-gaap:DeferredTaxAssetsTaxCreditCarryforwards


Deferred
Period End2020-12-31
Value600000.0
Percentage of DeferredTaxAssetsTaxCreditCarryforwards100.0

us-gaap:DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefits

us-gaap:DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefits


Deferred
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-31
Value201415142320117.6693.1410.59
Percentage of DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefits100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAllowanceForDoubtfulAccounts

us-gaap:DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAllowanceForDoubtfulAccounts


Deferred
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-31
Value1.2430.9960.8980.82715149.0287.494.6943.433
Percentage of DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAllowanceForDoubtfulAccounts100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DeferredTaxLiabilitiesGoodwillAndIntangibleAssetsIntangibleAssets

us-gaap:DeferredTaxLiabilitiesGoodwillAndIntangibleAssetsIntangibleAssets


Deferred
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-31
Value1151048770774821132.571
Percentage of DeferredTaxLiabilitiesGoodwillAndIntangibleAssetsIntangibleAssets100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DeferredTaxLiabilitiesPrepaidExpenses

us-gaap:DeferredTaxLiabilitiesPrepaidExpenses


Deferred
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-31
Value2960000.02163000.01728000.01490000.01324000.03113000.01705000.01560000.0407000.0267000.0
Percentage of DeferredTaxLiabilitiesPrepaidExpenses100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DeferredTaxLiabilitiesPropertyPlantAndEquipment

us-gaap:DeferredTaxLiabilitiesPropertyPlantAndEquipment


Deferred
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312012-12-312011-12-31
Value5.5534348544511383.7824.547
Percentage of DeferredTaxLiabilitiesPropertyPlantAndEquipment100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DefinedBenefitPlanBenefitObligation us-gaap:DisposalGroupClassification, us-gaap:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations, us-gaap:RetirementPlanName, us-gaap:RetirementPlanType

us-gaap:DefinedBenefitPlanBenefitObligation

us-gaap:DiscontinuedOperationsDisposedOfBySale, achc:UKSales, achc:PartnershipInCareBenefitsPlan, us-gaap:PensionPlansDefinedBenefit


Defined
Period End2020-12-312019-12-31
Value8066
Percentage of DefinedBenefitPlanBenefitObligation100.0100.0

us-gaap:DefinedBenefitPlanFairValueOfPlanAssets us-gaap:DisposalGroupClassification, us-gaap:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations, us-gaap:RetirementPlanName, us-gaap:RetirementPlanType

us-gaap:DefinedBenefitPlanFairValueOfPlanAssets

us-gaap:DiscontinuedOperationsDisposedOfBySale, achc:UKSales, achc:PartnershipInCareBenefitsPlan, us-gaap:PensionPlansDefinedBenefit


Defined
Period End2020-12-312019-12-31
Value7162
Percentage of DefinedBenefitPlanFairValueOfPlanAssets100.0100.0

us-gaap:DefinedBenefitPlanFundedStatusOfPlan us-gaap:DisposalGroupClassification, us-gaap:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations, us-gaap:RetirementPlanName, us-gaap:RetirementPlanType

us-gaap:DefinedBenefitPlanFundedStatusOfPlan

us-gaap:DiscontinuedOperationsDisposedOfBySale, achc:UKSales, achc:PartnershipInCareBenefitsPlan, us-gaap:PensionPlansDefinedBenefit


Defined
Period End2020-12-312019-12-31
Value-8.179-4.261
Percentage of DefinedBenefitPlanFundedStatusOfPlan100.0100.0

us-gaap:DerivativeAssetsLiabilitiesAtFairValueNet us-gaap:FairValueByMeasurementBasis

us-gaap:DerivativeAssetsLiabilitiesAtFairValueNet

us-gaap:EstimateOfFairValueFairValueDisclosure


Derivative
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302018-12-312018-03-312017-12-31
Value-84.584-39.859-8.683-9.015-68.915-15.89660-15.1612
Percentage of DerivativeAssetsLiabilitiesAtFairValueNet100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DerivativeInstrumentsAndHedgesLiabilitiesNoncurrent

us-gaap:DerivativeInstrumentsAndHedgesLiabilitiesNoncurrent


Derivative
Period End2020-09-302020-06-302020-03-312019-12-312019-09-30
Value398.6839.0156815
Percentage of DerivativeInstrumentsAndHedgesLiabilitiesNoncurrent100.0100.0100.0100.0100.0

us-gaap:DerivativeInstrumentsInHedgesAtFairValueNet us-gaap:FairValueByMeasurementBasis

us-gaap:DerivativeInstrumentsInHedgesAtFairValueNet

us-gaap:EstimateOfFairValueFairValueDisclosure


Derivative
Period End2020-12-312019-12-31
Value8468
Percentage of DerivativeInstrumentsInHedgesAtFairValueNet100.0100.0

us-gaap:DerivativeLiabilitiesCurrent

us-gaap:DerivativeLiabilitiesCurrent


Derivative
Period End2020-12-31
Value84
Percentage of DerivativeLiabilitiesCurrent100.0

us-gaap:DisposalGroupIncludingDiscontinuedOperationAccountsNotesAndLoansReceivableNet us-gaap:DisposalGroupClassification, us-gaap:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations

us-gaap:DisposalGroupIncludingDiscontinuedOperationAccountsNotesAndLoansReceivableNet

us-gaap:DiscontinuedOperationsDisposedOfBySale, achc:UKSales


Disposal
Period End2020-12-312019-12-31
Value5250
Percentage of DisposalGroupIncludingDiscontinuedOperationAccountsNotesAndLoansReceivableNet100.0100.0

us-gaap:DisposalGroupIncludingDiscontinuedOperationAccountsPayableCurrent us-gaap:DisposalGroupClassification, us-gaap:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations

us-gaap:DisposalGroupIncludingDiscontinuedOperationAccountsPayableCurrent

us-gaap:DiscontinuedOperationsDisposedOfBySale, achc:UKSales


Disposal
Period End2020-12-312019-12-31
Value4436
Percentage of DisposalGroupIncludingDiscontinuedOperationAccountsPayableCurrent100.0100.0

us-gaap:DisposalGroupIncludingDiscontinuedOperationCashAndCashEquivalents us-gaap:DisposalGroupClassification, us-gaap:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations

us-gaap:DisposalGroupIncludingDiscontinuedOperationCashAndCashEquivalents

us-gaap:DiscontinuedOperationsDisposedOfBySale, achc:UKSales


Disposal
Period End2020-12-312019-12-31
Value7524
Percentage of DisposalGroupIncludingDiscontinuedOperationCashAndCashEquivalents100.0100.0

us-gaap:DisposalGroupIncludingDiscontinuedOperationDeferredTaxLiabilities us-gaap:DisposalGroupClassification, us-gaap:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations

us-gaap:DisposalGroupIncludingDiscontinuedOperationDeferredTaxLiabilities

us-gaap:DiscontinuedOperationsDisposedOfBySale, achc:UKSales


Disposal
Period End2020-12-312019-12-31
Value5749
Percentage of DisposalGroupIncludingDiscontinuedOperationDeferredTaxLiabilities100.0100.0

us-gaap:DisposalGroupIncludingDiscontinuedOperationIntangibleAssetsNoncurrent us-gaap:DisposalGroupClassification, us-gaap:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations

us-gaap:DisposalGroupIncludingDiscontinuedOperationIntangibleAssetsNoncurrent

us-gaap:DiscontinuedOperationsDisposedOfBySale, achc:UKSales


Disposal
Period End2020-12-312019-12-31
Value2221
Percentage of DisposalGroupIncludingDiscontinuedOperationIntangibleAssetsNoncurrent100.0100.0

us-gaap:DisposalGroupIncludingDiscontinuedOperationOtherCurrentAssets us-gaap:DisposalGroupClassification, us-gaap:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations

us-gaap:DisposalGroupIncludingDiscontinuedOperationOtherCurrentAssets

us-gaap:DiscontinuedOperationsDisposedOfBySale, achc:UKSales


Disposal
Period End2020-12-312019-12-31
Value1313
Percentage of DisposalGroupIncludingDiscontinuedOperationOtherCurrentAssets100.0100.0

us-gaap:DisposalGroupIncludingDiscontinuedOperationOtherCurrentLiabilities us-gaap:DisposalGroupClassification, us-gaap:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations

us-gaap:DisposalGroupIncludingDiscontinuedOperationOtherCurrentLiabilities

us-gaap:DiscontinuedOperationsDisposedOfBySale, achc:UKSales


Disposal
Period End2020-12-312019-12-31
Value136100
Percentage of DisposalGroupIncludingDiscontinuedOperationOtherCurrentLiabilities100.0100.0

us-gaap:DisposalGroupIncludingDiscontinuedOperationOtherNoncurrentAssets us-gaap:DisposalGroupClassification, us-gaap:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations

us-gaap:DisposalGroupIncludingDiscontinuedOperationOtherNoncurrentAssets

us-gaap:DiscontinuedOperationsDisposedOfBySale, achc:UKSales


Disposal
Period End2020-12-312019-12-31
Value7.70613
Percentage of DisposalGroupIncludingDiscontinuedOperationOtherNoncurrentAssets100.0100.0

us-gaap:DisposalGroupIncludingDiscontinuedOperationOtherNoncurrentLiabilities us-gaap:DisposalGroupClassification, us-gaap:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations

us-gaap:DisposalGroupIncludingDiscontinuedOperationOtherNoncurrentLiabilities

us-gaap:DiscontinuedOperationsDisposedOfBySale, achc:UKSales


Disposal
Period End2020-12-312019-12-31
Value2221
Percentage of DisposalGroupIncludingDiscontinuedOperationOtherNoncurrentLiabilities100.0100.0

us-gaap:DisposalGroupIncludingDiscontinuedOperationPropertyPlantAndEquipmentNoncurrent us-gaap:DisposalGroupClassification, us-gaap:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations

us-gaap:DisposalGroupIncludingDiscontinuedOperationPropertyPlantAndEquipmentNoncurrent

us-gaap:DiscontinuedOperationsDisposedOfBySale, achc:UKSales


Disposal
Period End2020-12-312019-12-31
Value12971724
Percentage of DisposalGroupIncludingDiscontinuedOperationPropertyPlantAndEquipmentNoncurrent100.0100.0

us-gaap:EmployeeRelatedLiabilitiesCurrent

us-gaap:EmployeeRelatedLiabilitiesCurrent


Employee
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
Value1331271241381191141221171101081131091021049999971021051051131128087776859563932373228232819181616123.272
Percentage of EmployeeRelatedLiabilitiesCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:EmployeeRelatedLiabilitiesCurrent us-gaap:ConsolidatedEntities

us-gaap:VariableInterestEntityPrimaryBeneficiary


Employee
Period End2021-06-302021-03-312020-12-31
Value4.5095.0244.357
Percentage of EmployeeRelatedLiabilitiesCurrent3.43.93.5

us-gaap:FinanceLeaseLiability

us-gaap:FinanceLeaseLiability


Finance
Period End2020-12-312020-09-30
Value4250
Percentage of FinanceLeaseLiability100.0100.0

us-gaap:FinanceLeaseLiabilityCurrent

us-gaap:FinanceLeaseLiabilityCurrent


Finance
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value31323235356.6376.8196.6847.0957.210.445
Percentage of FinanceLeaseLiabilityCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:FinanceLeaseLiabilityCurrent us-gaap:BalanceSheetLocation

achc:OtherAccruedLiabilities


Finance
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value3235356.6376.8196.6847.0957.21
Percentage of FinanceLeaseLiabilityCurrent100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:FinanceLeaseLiabilityNoncurrent

us-gaap:FinanceLeaseLiabilityNoncurrent


Finance
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value1014144343434444
Percentage of FinanceLeaseLiabilityNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:FinanceLeaseLiabilityNoncurrent us-gaap:BalanceSheetLocation

us-gaap:OtherLiabilities


Finance
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value1014144343434444
Percentage of FinanceLeaseLiabilityNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:FinanceLeaseLiabilityPaymentsDue

us-gaap:FinanceLeaseLiabilityPaymentsDue


Finance
Period End2020-12-312020-09-30
Value6070
Percentage of FinanceLeaseLiabilityPaymentsDue100.0100.0

us-gaap:FinanceLeaseLiabilityPaymentsDueAfterYearFive

us-gaap:FinanceLeaseLiabilityPaymentsDueAfterYearFive


Finance
Period End2020-12-31
Value23
Percentage of FinanceLeaseLiabilityPaymentsDueAfterYearFive100.0

us-gaap:FinanceLeaseLiabilityPaymentsDueNextTwelveMonths

us-gaap:FinanceLeaseLiabilityPaymentsDueNextTwelveMonths


Finance
Period End2020-12-312020-09-30
Value3236
Percentage of FinanceLeaseLiabilityPaymentsDueNextTwelveMonths100.0100.0

us-gaap:FinanceLeaseLiabilityPaymentsDueYearFive

us-gaap:FinanceLeaseLiabilityPaymentsDueYearFive


Finance
Period End2020-12-31
Value1089000.0
Percentage of FinanceLeaseLiabilityPaymentsDueYearFive100.0

us-gaap:FinanceLeaseLiabilityPaymentsDueYearFour

us-gaap:FinanceLeaseLiabilityPaymentsDueYearFour


Finance
Period End2020-12-312020-09-30
Value1007000.01340000.0
Percentage of FinanceLeaseLiabilityPaymentsDueYearFour100.0100.0

us-gaap:FinanceLeaseLiabilityPaymentsDueYearThree

us-gaap:FinanceLeaseLiabilityPaymentsDueYearThree


Finance
Period End2020-12-312020-09-30
Value990000.02218000.0
Percentage of FinanceLeaseLiabilityPaymentsDueYearThree100.0100.0

us-gaap:FinanceLeaseLiabilityPaymentsDueYearTwo

us-gaap:FinanceLeaseLiabilityPaymentsDueYearTwo


Finance
Period End2020-12-312020-09-30
Value990000.03481000.0
Percentage of FinanceLeaseLiabilityPaymentsDueYearTwo100.0100.0

us-gaap:FinanceLeaseLiabilityPaymentsRemainderOfFiscalYear

us-gaap:FinanceLeaseLiabilityPaymentsRemainderOfFiscalYear


Finance
Period End2020-09-30
Value1963000.0
Percentage of FinanceLeaseLiabilityPaymentsRemainderOfFiscalYear100.0

us-gaap:FinanceLeaseLiabilityUndiscountedExcessAmount

us-gaap:FinanceLeaseLiabilityUndiscountedExcessAmount


Finance
Period End2020-12-312020-09-30
Value1820
Percentage of FinanceLeaseLiabilityUndiscountedExcessAmount100.0100.0

us-gaap:FinanceLeaseRightOfUseAsset us-gaap:BalanceSheetLocation

us-gaap:FinanceLeaseRightOfUseAsset

us-gaap:PropertyPlantAndEquipment


Finance
Period End2020-12-312020-09-302020-06-302020-03-312019-12-31
Value3443434344
Percentage of FinanceLeaseRightOfUseAsset100.0100.0100.0100.0100.0

us-gaap:FinanceLeaseWeightedAverageDiscountRatePercent

us-gaap:FinanceLeaseWeightedAverageDiscountRatePercent


Finance
Period End2020-12-312020-09-302020-06-302020-03-312019-12-31
Value5.96.40.0640.0640.064
Percentage of FinanceLeaseWeightedAverageDiscountRatePercent100.0100.0100.0100.0100.0

us-gaap:FiniteLivedIntangibleAssetsAccumulatedAmortization

us-gaap:FiniteLivedIntangibleAssetsAccumulatedAmortization


Finite
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302011-12-31
Value1131000.03231000.03231000.03231000.03231000.03231000.03247000.03247000.03247000.03247000.03247000.03247000.03247000.03247000.03247000.03247000.03247000.03312000.03207000.03102000.02997000.02871000.02745000.02619000.02485000.02346000.02208000.02069000.01931000.01769000.01580000.01462000.0-1259000.01090000.0951000.0632000.0
Percentage of FiniteLivedIntangibleAssetsAccumulatedAmortization100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:FiniteLivedIntangibleAssetsAccumulatedAmortization us-gaap:FiniteLivedIntangibleAssetsByMajorClass

us-gaap:ContractBasedIntangibleAssets


Finite
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302014-12-31
Value2100000.02100000.02100000.02100000.02100000.02100000.02100000.02100000.02100000.02100000.02100000.02100000.02100000.02100000.02100000.02100000.02065000.01960000.01855000.01750000.01645000.01330000.0
Percentage of FiniteLivedIntangibleAssetsAccumulatedAmortization65.065.065.065.065.064.764.764.764.764.764.764.764.764.764.764.762.361.159.858.457.353.5

us-gaap:NoncompeteAgreements


Finite
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302011-12-31
Value1131000.01131000.01131000.01131000.01131000.01131000.01131000.01131000.01147000.01147000.01147000.01147000.01147000.01147000.01147000.01147000.01147000.01147000.01147000.01247000.01247000.01247000.01247000.01226000.01205000.01184000.01155000.01121000.01088000.01054000.01021000.0964000.0880000.0782000.0684000.0627000.0595000.0488000.0
Percentage of FiniteLivedIntangibleAssetsAccumulatedAmortization0.00.0100.035.035.035.035.035.035.335.335.335.335.335.335.335.335.335.335.337.738.940.241.642.743.945.246.547.849.350.952.954.555.753.5-54.357.562.677.2

us-gaap:FiniteLivedIntangibleAssetsGross

us-gaap:FiniteLivedIntangibleAssetsGross


Finite
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302011-12-31
Value1131000.03231000.03231000.03231000.03231000.03231000.03247000.03247000.03247000.03247000.03247000.03247000.03247000.03247000.03247000.03247000.03247000.03347000.03347000.03347000.03347000.03347000.03347000.03347000.03347000.03347000.03347000.03347000.03347000.03347000.03347000.03432000.03432000.03088000.02922000.02773000.0
Percentage of FiniteLivedIntangibleAssetsGross100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:FiniteLivedIntangibleAssetsGross us-gaap:FiniteLivedIntangibleAssetsByMajorClass

us-gaap:NoncompeteAgreements


Finite
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302011-12-31
Value1131000.01131000.01131000.01131000.01131000.01131000.01131000.01131000.01147000.01147000.01147000.01147000.01147000.01147000.01147000.01147000.01147000.01147000.01147000.01247000.01247000.01247000.01247000.01247000.01247000.01247000.01247000.01247000.01247000.01247000.01247000.01247000.01247000.01247000.01247000.0903000.0737000.0588000.0
Percentage of FiniteLivedIntangibleAssetsGross0.00.0100.035.035.035.035.035.035.335.335.335.335.335.335.335.335.335.335.337.337.337.337.337.337.337.337.337.337.337.337.337.337.336.336.329.225.221.2

us-gaap:ForeignCurrencyContractsLiabilityFairValueDisclosure

us-gaap:ForeignCurrencyContractsLiabilityFairValueDisclosure


Foreign
Period End2020-12-312020-09-302020-06-302020-03-312019-12-31
Value84398.79.068
Percentage of ForeignCurrencyContractsLiabilityFairValueDisclosure100.0100.0100.0100.0100.0

us-gaap:GoodwillGross

us-gaap:GoodwillGross


Goodwill
Period End2020-09-302020-06-302020-03-312019-12-312018-12-312017-12-31
Value278627512752277527222751
Percentage of GoodwillGross100.0100.0100.0100.0100.0100.0

us-gaap:GoodwillGross us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments

us-gaap:OperatingSegments, achc:UnitedKingdomFacility


Goodwill
Period End2020-09-302020-06-302020-03-312019-12-312018-12-312017-12-31
Value681666667689677708
Percentage of GoodwillGross24.424.224.224.924.925.8

us-gaap:OperatingSegments, achc:UnitedStatesFacilities


Goodwill
Period End2020-09-302020-06-302020-03-312019-12-312018-12-312017-12-31
Value210520852085208520442042
Percentage of GoodwillGross75.675.875.875.175.174.2

us-gaap:IncomeTaxesReceivable

us-gaap:IncomeTaxesReceivable


Income
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312014-12-312013-12-31
Value365.2550.89712119.3585.5795.0019.7275.1192.38113.88524159.472117.182119.794.8736.6766.543.3994.005
Percentage of IncomeTaxesReceivable100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:InsuranceReceivableForMalpractice

us-gaap:InsuranceReceivableForMalpractice


Insurance
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-31
Value278.58.222252112114.81.7
Percentage of InsuranceReceivableForMalpractice100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:InsuranceReceivableForMalpracticeCurrent

us-gaap:InsuranceReceivableForMalpracticeCurrent


Insurance
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312014-12-312013-12-312012-12-312011-12-31
Value6.7926.9176.81.8311.8445.7393.02.0492.0492.0492.0492.0491.68817176.4726.4726.4726.4725.295.295.295.293.53.43.40.6
Percentage of InsuranceReceivableForMalpracticeCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:InsuranceReceivableForMalpracticeNoncurrent

us-gaap:InsuranceReceivableForMalpracticeNoncurrent


Insurance
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-31
Value205.56.15.119168.57.81.41.1
Percentage of InsuranceReceivableForMalpracticeNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IntangibleAssetsGrossExcludingGoodwill

us-gaap:IntangibleAssetsGrossExcludingGoodwill


Intangible
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312013-12-31
Value696969939292939292939294949490908886868788105626161612422
Percentage of IntangibleAssetsGrossExcludingGoodwill100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:InterestPayableCurrent

us-gaap:InterestPayableCurrent


Interest
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312014-12-312013-12-31
Value1717401423113311331132123312361535123313351526135.065
Percentage of InterestPayableCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths


Lessee
Period End2020-12-312020-09-30
Value2560
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths100.0100.0

us-gaap:LesseeOperatingLeaseLiabilityPaymentsRemainderOfFiscalYear

us-gaap:LesseeOperatingLeaseLiabilityPaymentsRemainderOfFiscalYear


Lessee
Period End2020-09-30
Value15
Percentage of LesseeOperatingLeaseLiabilityPaymentsRemainderOfFiscalYear100.0

us-gaap:LiabilitiesOfDisposalGroupIncludingDiscontinuedOperation us-gaap:DisposalGroupClassification, us-gaap:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations

us-gaap:LiabilitiesOfDisposalGroupIncludingDiscontinuedOperation

us-gaap:DiscontinuedOperationsDisposedOfBySale, achc:UKSales


Liabilities
Period End2020-12-312019-12-31
Value660635
Percentage of LiabilitiesOfDisposalGroupIncludingDiscontinuedOperation100.0100.0

us-gaap:LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationCurrent

us-gaap:LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationCurrent


Liabilities
Period End2020-12-312019-12-31
Value660148
Percentage of LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationCurrent100.0100.0

us-gaap:LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationCurrent us-gaap:DisposalGroupClassification, us-gaap:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations

us-gaap:DiscontinuedOperationsDisposedOfBySale, achc:UKSales


Liabilities
Period End2020-12-312019-12-31
Value192148
Percentage of LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationCurrent29.2100.0

us-gaap:LineOfCredit us-gaap:CreditFacility

us-gaap:LineOfCredit

achc:TermLoanAFacility


Line
Period End2020-11-13
Value352
Percentage of LineOfCredit100.0

us-gaap:LineOfCredit us-gaap:CreditFacility, us-gaap:DebtInstrument

achc:SecuredDebtTermbLoans, achc:AmendedAndRestatedCreditFacility


Line
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-30
Value8721328133113351338136213651369137213761379139813981424142814311435143914421446495493
Percentage of LineOfCredit0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

achc:SecuredDebtTermbLoans, achc:PriorCreditFacility


Line
Period End2020-12-31
Value872
Percentage of LineOfCredit0.0

achc:SwinglineCreditFacility, achc:NewCreditFacility


Line
Period End2021-03-17
Value20
Percentage of LineOfCredit0.0

achc:TermLoanAFacility, achc:NewCreditFacility


Line
Period End2021-06-302021-03-312021-03-17
Value422425425
Percentage of LineOfCredit0.00.00.0

us-gaap:LetterOfCredit, achc:NewCreditFacility


Line
Period End2021-03-17
Value20
Percentage of LineOfCredit0.0

us-gaap:RevolvingCreditFacility, achc:NewCreditFacility


Line
Period End2021-06-302021-03-312021-03-17
Value125160600
Percentage of LineOfCredit0.00.00.0

us-gaap:SecuredDebt, achc:AmendedAndRestatedCreditFacility


Line
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302014-12-31
Value311325332339346351356361365370375380380385390395400600613625500505525
Percentage of LineOfCredit0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:SecuredDebt, achc:PriorCreditFacility


Line
Period End2020-12-31
Value311
Percentage of LineOfCredit0.0

us-gaap:StandbyLettersOfCredit, achc:NewCreditFacility


Line
Period End2021-06-302021-03-31
Value4.318
Percentage of LineOfCredit0.00.0

us-gaap:LineOfCredit us-gaap:CreditFacility, us-gaap:DebtInstrument, us-gaap:LongtermDebtType

achc:TermLoanAFacility, achc:RepricingFacilitiesAmendments, achc:AmendedAndRestatedCreditFacility


Line
Period End2020-11-13
Value318
Percentage of LineOfCredit90.5

achc:TermLoanAFacility, achc:RepricingFacilitiesAmendments, achc:PriorCreditFacility


Line
Period End2020-11-13
Value318
Percentage of LineOfCredit90.5

us-gaap:LineOfCredit us-gaap:CreditFacility, us-gaap:LongtermDebtType

us-gaap:StandbyLettersOfCredit, achc:AmendedAndRestatedCreditFacility


Line
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-31
Value1714141514141213135.95.04.26.66.56.56.68.3
Percentage of LineOfCredit0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:LineOfCredit us-gaap:FairValueByMeasurementBasis, us-gaap:LongtermDebtType

us-gaap:CarryingReportedAmountFairValueDisclosure, achc:AmendedAndRestatedCreditFacility


Line
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312013-12-31
Value1175164016491659166816941766177917151722172817501749177817851792179921742164207997799910071108525346
Percentage of LineOfCredit0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:CarryingReportedAmountFairValueDisclosure, achc:NewCreditFacility


Line
Period End2021-06-302021-03-31
Value544581
Percentage of LineOfCredit0.00.0

us-gaap:CarryingReportedAmountFairValueDisclosure, achc:PriorCreditFacility


Line
Period End2020-12-31
Value1175
Percentage of LineOfCredit0.0

us-gaap:LineOfCreditFacilityMaximumBorrowingCapacity us-gaap:CreditFacility, us-gaap:DebtInstrument, us-gaap:LongtermDebtType

us-gaap:LineOfCreditFacilityMaximumBorrowingCapacity

us-gaap:RevolvingCreditFacility, achc:RepricingFacilitiesAmendments, achc:AmendedAndRestatedCreditFacility


Line
Period End2020-11-132018-03-29
Value459500
Percentage of LineOfCreditFacilityMaximumBorrowingCapacity100.0100.0

us-gaap:RevolvingCreditFacility, achc:RepricingFacilitiesAmendments, achc:PriorCreditFacility


Line
Period End2020-11-132018-03-29
Value459500
Percentage of LineOfCreditFacilityMaximumBorrowingCapacity100.0100.0

us-gaap:LineOfCreditFacilityRemainingBorrowingCapacity us-gaap:CreditFacility, us-gaap:DebtInstrument

us-gaap:LineOfCreditFacilityRemainingBorrowingCapacity

us-gaap:RevolvingCreditFacility, achc:NewCreditFacility


Line
Period End2021-06-302021-03-31
Value470422
Percentage of LineOfCreditFacilityRemainingBorrowingCapacity100.0100.0

us-gaap:LineOfCreditFacilityRemainingBorrowingCapacity us-gaap:LongtermDebtType

achc:AmendedAndRestatedCreditFacility


Line
Period End2020-12-312020-09-30
Value441485
Percentage of LineOfCreditFacilityRemainingBorrowingCapacity0.00.0

us-gaap:LinesOfCreditFairValueDisclosure us-gaap:FairValueByMeasurementBasis, us-gaap:LongtermDebtType

us-gaap:LinesOfCreditFairValueDisclosure

us-gaap:EstimateOfFairValueFairValueDisclosure, achc:AmendedAndRestatedCreditFacility


Lines
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312013-12-31
Value1175164016491659166816941766177917151722172817501749177817851792179921742164207997799910071108525346
Percentage of LinesOfCreditFairValueDisclosure100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:EstimateOfFairValueFairValueDisclosure, achc:NewCreditFacility


Lines
Period End2021-06-302021-03-31
Value544581
Percentage of LinesOfCreditFairValueDisclosure0.00.0

us-gaap:EstimateOfFairValueFairValueDisclosure, achc:PriorCreditFacility


Lines
Period End2020-12-31
Value1175
Percentage of LinesOfCreditFairValueDisclosure100.0

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalAfterYearFive

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalAfterYearFive


Long
Period End2020-12-312015-12-31
Value9251749
Percentage of LongTermDebtMaturitiesRepaymentsOfPrincipalAfterYearFive100.0100.0

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths


Long
Period End2020-12-312015-12-31
Value15345
Percentage of LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths100.0100.0

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour


Long
Period End2020-12-312015-12-31
Value390345
Percentage of LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour100.0100.0

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree


Long
Period End2020-12-312015-12-31
Value140072
Percentage of LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree100.0100.0

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo


Long
Period End2020-12-312015-12-31
Value28458
Percentage of LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo100.0100.0

us-gaap:MalpracticeLossContingencyAccrualUndiscounted

us-gaap:MalpracticeLossContingencyAccrualUndiscounted


Malpractice
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-31
Value77524255524116146.42.8
Percentage of MalpracticeLossContingencyAccrualUndiscounted100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:MalpracticeLossContingencyAccrualUndiscountedCurrent

us-gaap:MalpracticeLossContingencyAccrualUndiscountedCurrent


Malpractice
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-31
Value9.74.75.02211104.24.14.01.2
Percentage of MalpracticeLossContingencyAccrualUndiscountedCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:MalpracticeLossContingencyAccrualUndiscountedNoncurrent

us-gaap:MalpracticeLossContingencyAccrualUndiscountedNoncurrent


Malpractice
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-31
Value674737324031129.92.41.6
Percentage of MalpracticeLossContingencyAccrualUndiscountedNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:NotesPayableFairValueDisclosure us-gaap:FairValueByMeasurementBasis, us-gaap:LongtermDebtType

us-gaap:NotesPayableFairValueDisclosure

us-gaap:EstimateOfFairValueFairValueDisclosure, achc:FivePointFiveZeroZeroPercentSeniorNotesDueTwoThousandAndTwentyEight