KRC


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

Table of contents



us-gaap:CommonStockValue

us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding
dei:LegalEntity

us-gaap:WeightedAverageNumberOfSharesOutstandingBasic
dei:LegalEntity

us-gaap:EarningsPerShareBasic
dei:LegalEntity

us-gaap:EarningsPerShareDiluted
dei:LegalEntity

us-gaap:AllocatedShareBasedCompensationExpense
us-gaap:AwardType

us-gaap:GeneralAndAdministrativeExpense
dei:LegalEntity

us-gaap:IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest
dei:LegalEntity

us-gaap:InterestExpense
dei:LegalEntity

us-gaap:InterestPaidNet
dei:LegalEntity

us-gaap:NetIncomeLoss
dei:LegalEntity

us-gaap:NetIncomeLossAttributableToNoncontrollingInterest
dei:LegalEntity

us-gaap:NetIncomeLossAvailableToCommonStockholdersBasic
dei:LegalEntity

us-gaap:NonoperatingIncomeExpense
dei:LegalEntity

us-gaap:OperatingExpenses
dei:LegalEntity

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

us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax
dei:LegalEntity

us-gaap:Revenues
dei:LegalEntity

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

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

us-gaap:LiabilitiesAndStockholdersEquity
dei:LegalEntity

us-gaap:StockholdersEquity

us-gaap:CashAndCashEquivalentsAtCarryingValue
dei:LegalEntity

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents
dei:LegalEntity

us-gaap:AccountsReceivableNetCurrent

us-gaap:FurnitureAndFixturesGross
krc:FiniteLivedIntangibleAssetsAndLiabilitiesByMajorClass
us-gaap:FiniteLivedIntangibleAssetsNet

us-gaap:OperatingLeaseRightOfUseAsset
dei:LegalEntity
us-gaap:RealEstateAndAccumulatedDepreciationDescriptionOfProperty
dei:LegalEntity, us-gaap:LongtermDebtType
us-gaap:LongTermDebt
us-gaap:LongtermDebtType

us-gaap:MinorityInterest

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearTwo

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearThree

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFour

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFive

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive

us-gaap:OperatingLeaseLiability
dei:LegalEntity
us-gaap:RealEstateAndAccumulatedDepreciationDescriptionOfProperty

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDue

us-gaap:LesseeOperatingLeaseLiabilityUndiscountedExcessAmount

us-gaap:StockholdersEquity

us-gaap:StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest
us-gaap:StatementEquityComponents

us-gaap:CommonStockValue

us-gaap:AdditionalPaidInCapital

us-gaap:RetainedEarningsAccumulatedDeficit

us-gaap:MinorityInterest

us-gaap:StockIssuedDuringPeriodValueNewIssues
us-gaap:StatementEquityComponents

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

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

us-gaap:NetCashProvidedByUsedInOperatingActivities
dei:LegalEntity

us-gaap:NetCashProvidedByUsedInInvestingActivities
dei:LegalEntity

us-gaap:NetCashProvidedByUsedInFinancingActivities
dei:LegalEntity

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect
dei:LegalEntity

us-gaap:DepreciationDepletionAndAmortization
dei:LegalEntity

us-gaap:NetCashProvidedByUsedInOperatingActivities
dei:LegalEntity

us-gaap:NetIncomeLoss
dei:LegalEntity

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

us-gaap:ShareBasedCompensation
dei:LegalEntity

us-gaap:NetCashProvidedByUsedInInvestingActivities
dei:LegalEntity

us-gaap:NetCashProvidedByUsedInFinancingActivities
dei:LegalEntity
us-gaap:SubsequentEventType
us-gaap:PaymentsOfDividends

us-gaap:PaymentsOfDividendsCommonStock
dei:LegalEntity

krc:AnnualGroundLeaseRentalObligationsMaximum
us-gaap:PropertyPlantAndEquipmentByType
krc:AverageOccupancyPercentage

krc:CommonStockholdersAndUnitholdersDividendsAndDistributionsDeclaredButNotPaid
dei:LegalEntity

krc:DepreciationNonRealEstateAssets
dei:LegalEntity
us-gaap:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations, us-gaap:PropertyPlantAndEquipmentByType
krc:DispositionsSalesPrice

krc:GroundLeaseMinimumRentIncreaseFiveYearsPercentageofAnnualPercentageRent

krc:InterestIncomeAndOtherNetInvestmentGainLoss
dei:LegalEntity

krc:NetIncomeLossAttributabletoNoncontrollingInterestinConsolidatedSubsidiary

krc:NetIncomeLossAvailabletoCommonStockholdersBasicandDiluted
dei:LegalEntity

krc:NoncashAmortizationOfDeferredRevenueRelatedToTenantFundedTenantImprovements
dei:LegalEntity

krc:OperatingLeaseIncomeAdjustments

krc:OperatingLeaseIncomeAdjustmentsTransitioningTenantstoCashBasis

krc:OperatingLeaseRightofUseAssetAmortization
dei:LegalEntity

krc:ProvisionforDoubtfulAccountsIncludingTenantsLeaseAgreement
dei:LegalEntity
us-gaap:AwardType
krc:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodGrantDateFairValue

krc:TenantImprovementsFundedDirectlyByTenantsToThirdParties
dei:LegalEntity
us-gaap:StatementEquityComponents
us-gaap:AdjustmentsToAdditionalPaidInCapitalOther

us-gaap:AmortizationOfAboveAndBelowMarketLeases
dei:LegalEntity

us-gaap:AmortizationOfFinancingCostsAndDiscounts
dei:LegalEntity
us-gaap:RealEstateAndAccumulatedDepreciationDescriptionOfProperty
us-gaap:AssetAcquisitionConsiderationTransferred
us-gaap:RealEstateAndAccumulatedDepreciationDescriptionOfProperty, us-gaap:SubsequentEventType

us-gaap:CapitalExpendituresIncurredButNotYetPaid
dei:LegalEntity

us-gaap:ConversionOfStockAmountConverted1

us-gaap:DepreciationAndAmortization
dei:LegalEntity

us-gaap:DividendsCommonStock
us-gaap:StatementEquityComponents

us-gaap:EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsCapitalizedAmount
dei:LegalEntity, us-gaap:DebtInstrument, us-gaap:LongtermDebtType
us-gaap:ExtinguishmentOfDebtAmount

us-gaap:GainLossOnSaleOfPropertyPlantEquipment
dei:LegalEntity
us-gaap:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations, us-gaap:PropertyPlantAndEquipmentByType
dei:LegalEntity
us-gaap:GeneralPartnersCapitalAccountDistributionAmount
dei:LegalEntity, us-gaap:StatementEquityComponents

us-gaap:IncreaseDecreaseInOperatingAssets
dei:LegalEntity

us-gaap:IncreaseDecreaseInOperatingLiabilities
dei:LegalEntity

us-gaap:InterestCostsCapitalized
dei:LegalEntity
dei:LegalEntity
us-gaap:InterestCostsCapitalizedAdjustment
dei:LegalEntity
us-gaap:InterestCostsIncurred
dei:LegalEntity, us-gaap:Ownership
us-gaap:LimitedLiabilityCompanyLLCOrLimitedPartnershipLPMembersOrLimitedPartnersOwnershipInterest
us-gaap:Ownership

us-gaap:MarketableSecuritiesGainLossExcludingOtherThanTemporaryImpairments
dei:LegalEntity, us-gaap:StatementEquityComponents
us-gaap:MinorityInterestDecreaseFromRedemptions

us-gaap:NoncontrollingInterestInNetIncomeLossOperatingPartnershipsRedeemable

us-gaap:OperatingLeaseCost
dei:LegalEntity

us-gaap:OperatingLeaseExpense
dei:LegalEntity

us-gaap:OperatingLeaseLeaseIncome
dei:LegalEntity

us-gaap:OperatingLeaseLeaseIncomeLeasePayments

us-gaap:OperatingLeasePayments
dei:LegalEntity

us-gaap:OperatingLeaseVariableLeaseIncome

us-gaap:OtherCostAndExpenseOperating
dei:LegalEntity

us-gaap:ParticipatingSecuritiesDistributedAndUndistributedEarningsLossBasic
dei:LegalEntity
dei:LegalEntity
us-gaap:PartnersCapitalAccountPublicSaleOfUnits
dei:LegalEntity, us-gaap:StatementEquityComponents
dei:LegalEntity
us-gaap:PartnersCapitalAccountTreasuryUnitsPurchases
dei:LegalEntity, us-gaap:StatementEquityComponents
dei:LegalEntity
us-gaap:PartnersCapitalAccountUnitBasedCompensation
dei:LegalEntity, us-gaap:StatementEquityComponents

us-gaap:PaymentsForCapitalImprovements
dei:LegalEntity

us-gaap:PaymentsOfFinancingCosts
dei:LegalEntity

us-gaap:PaymentsRelatedToTaxWithholdingForShareBasedCompensation
dei:LegalEntity

us-gaap:PaymentsToDevelopRealEstateAssets
dei:LegalEntity

us-gaap:PaymentsToMinorityShareholders
dei:LegalEntity

us-gaap:ProceedsFromIssuanceOfCommonStock
dei:LegalEntity
us-gaap:StatementEquityComponents, us-gaap:SubsidiarySaleOfStock
us-gaap:SubsidiarySaleOfStock

us-gaap:ProceedsFromIssuanceOfUnsecuredDebt
dei:LegalEntity

us-gaap:ProceedsFromLongTermLinesOfCredit
dei:LegalEntity

us-gaap:ProceedsFromSaleOfRealEstateHeldforinvestment
dei:LegalEntity

us-gaap:RealEstateTaxExpense
dei:LegalEntity

us-gaap:RepaymentsOfLongTermLinesOfCredit
dei:LegalEntity

us-gaap:RepaymentsOfSecuredDebt
dei:LegalEntity

us-gaap:RepaymentsOfUnsecuredDebt
dei:LegalEntity
us-gaap:IncomeStatementLocation
us-gaap:SeveranceCosts1
us-gaap:AwardType, us-gaap:SubsequentEventType
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod
us-gaap:AwardType
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue
us-gaap:TitleOfIndividual, us-gaap:AwardType
us-gaap:AwardType
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate
us-gaap:AwardType
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate
us-gaap:StatementEquityComponents
us-gaap:StockIssuedDuringPeriodValueConversionOfUnits
us-gaap:StatementEquityComponents
us-gaap:StockIssuedDuringPeriodValueRestrictedStockAwardGross

us-gaap:StockIssuedDuringPeriodValueShareBasedCompensation
us-gaap:StatementEquityComponents

us-gaap:StockRepurchasedAndRetiredDuringPeriodValue
us-gaap:StatementEquityComponents

us-gaap:StraightLineRent
dei:LegalEntity

us-gaap:VariableLeaseCost

us-gaap:WeightedAverageNumberDilutedSharesOutstandingAdjustment
dei:LegalEntity

krc:AcquisitionRelatedIntangibleLiabilitiesNet

krc:AllowanceForDeferredRentReceivables

krc:AllowanceforDoubtfulAccountsPremiumsandOtherReceivablesAfterAdjustment
us-gaap:StatementEquityComponents
krc:AtMarketStockAggregateGrossSalesPriceofCommonStock
us-gaap:StatementClassOfStock, us-gaap:StatementEquityComponents, us-gaap:SubsidiarySaleOfStock
krc:AtMarketStockOfferingProgramRemainedAvailableForIssuance
us-gaap:DeferredRevenueArrangementType
krc:ContractWithCustomerLiabilityFutureAmortizationRecognizedThereafter
us-gaap:DeferredRevenueArrangementType
krc:ContractWithCustomerLiabilityFutureAmortizationRecognizedYearFive
us-gaap:DeferredRevenueArrangementType
krc:ContractWithCustomerLiabilityFutureAmortizationRecognizedYearFour
us-gaap:DeferredRevenueArrangementType
krc:ContractWithCustomerLiabilityFutureAmortizationRecognizedYearOne
us-gaap:DeferredRevenueArrangementType
krc:ContractWithCustomerLiabilityFutureAmortizationRecognizedYearThree
us-gaap:DeferredRevenueArrangementType
krc:ContractWithCustomerLiabilityFutureAmortizationRecognizedYearTwo

krc:ContractwithCustomerLiabilityOther

krc:DeferredLeasingCostsAndAcquisitionRelatedIntangibleAssetsNet
dei:LegalEntity

krc:DeferredRentReceivablesGross

krc:DisposalGroupIncludingDiscontinuedOperationAdvanceRentIncludingTenantSecurityDeposits
dei:LegalEntity

krc:DisposalGroupIncludingDiscontinuedOperationDeferredRevenueAndAcquisitionRelatedIntangibleLiabilities
dei:LegalEntity
krc:FiniteLivedIntangibleAssetsAndLiabilitiesByMajorClass
krc:FiniteLivedIntangibleLiabilitiesAmortizationExpenseNextRollingTwelveMonths
krc:FiniteLivedIntangibleAssetsAndLiabilitiesByMajorClass
krc:Finitelivedintangibleliabilitiesaccumulatedamortization
krc:FiniteLivedIntangibleAssetsAndLiabilitiesByMajorClass
krc:Finitelivedintangibleliabilitiesamortizationexpenseafteryearfive
krc:FiniteLivedIntangibleAssetsAndLiabilitiesByMajorClass
krc:Finitelivedintangibleliabilitiesamortizationexpenseyearfive
krc:FiniteLivedIntangibleAssetsAndLiabilitiesByMajorClass
krc:Finitelivedintangibleliabilitiesamortizationexpenseyearfour
krc:FiniteLivedIntangibleAssetsAndLiabilitiesByMajorClass
krc:Finitelivedintangibleliabilitiesamortizationexpenseyearthree
krc:FiniteLivedIntangibleAssetsAndLiabilitiesByMajorClass
krc:Finitelivedintangibleliabilitiesamortizationexpenseyeartwo
krc:FiniteLivedIntangibleAssetsAndLiabilitiesByMajorClass
krc:Finitelivedintangibleliabilitiesgross
krc:FiniteLivedIntangibleAssetsAndLiabilitiesByMajorClass
krc:Finitelivedintangibleliabilitiesnet
dei:LegalEntity, us-gaap:LongtermDebtType
krc:NetBookValueOfPropertiesPledgedAsCollateralForSecuredDebt

krc:OperatingLeaseLeaseIncomeAllowanceForDoubtfulAccountsCOVID19Related
us-gaap:MajorPropertyClass
krc:RealEstatePropertiesPercentageLeased
us-gaap:PropertyPlantAndEquipmentByType
us-gaap:MajorPropertyClass
krc:RealEstatePropertiesPercentageOccupied
us-gaap:PropertyPlantAndEquipmentByType
us-gaap:AwardDate
krc:SharebasedCompensationArrangementbySharebasedPaymentAwardNumberofSharesRequested

krc:UndevelopedLandAndConstructionInProgress
dei:LegalEntity

srt:RealEstateAndAccumulatedDepreciationAmountOfEncumbrances
us-gaap:MortgageLoansOnRealEstateDescriptionTypeOfProperty
us-gaap:MortgageLoansOnRealEstateDescriptionTypeOfProperty, us-gaap:RealEstateAndAccumulatedDepreciationDescriptionOfProperty

srt:RealEstateFederalIncomeTaxBasis

us-gaap:AccountsPayableAndAccruedLiabilitiesCurrentAndNoncurrent
dei:LegalEntity

us-gaap:AccountsReceivableGrossCurrent

us-gaap:AccountsReceivableNet
dei:LegalEntity
us-gaap:EnvironmentalRemediationContingency
us-gaap:AccrualForEnvironmentalLossContingencies
us-gaap:RealEstateAndAccumulatedDepreciationDescriptionOfProperty

us-gaap:AllowanceForDoubtfulAccountsReceivableCurrent
us-gaap:MajorPropertyClass
us-gaap:AreaOfLand
us-gaap:PropertyPlantAndEquipmentByType
krc:AssetAcquisition, us-gaap:StatementGeographical, us-gaap:MajorPropertyClass
us-gaap:AreaOfRealEstateProperty
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency
us-gaap:AssetsFairValueDisclosure

us-gaap:ContractWithCustomerLiability
us-gaap:DeferredRevenueArrangementType
dei:LegalEntity
us-gaap:DebtInstrumentCarryingAmount
dei:LegalEntity, us-gaap:DebtInstrument, us-gaap:LongtermDebtType
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementBasis, us-gaap:LongtermDebtType
us-gaap:DebtInstrumentFairValue
us-gaap:FairValueByMeasurementBasis, us-gaap:LongtermDebtType
dei:LegalEntity, us-gaap:DebtInstrument, us-gaap:LongtermDebtType
us-gaap:DebtInstrumentInterestRateEffectivePercentage
dei:LegalEntity, us-gaap:LongtermDebtType
us-gaap:DebtInstrumentUnamortizedDiscount
us-gaap:DebtInstrument, us-gaap:LongtermDebtType
dei:LegalEntity, us-gaap:DebtInstrument, us-gaap:LongtermDebtType
us-gaap:DebtInstrumentUnamortizedDiscountPremiumAndDebtIssuanceCostsNet
dei:LegalEntity, us-gaap:DebtInstrument, us-gaap:LongtermDebtType
us-gaap:DebtInstrumentUnamortizedDiscountPremiumNet
us-gaap:LongtermDebtType

us-gaap:DeferredCompensationLiabilityCurrentAndNoncurrent

us-gaap:DeferredRentReceivablesNet
dei:LegalEntity

us-gaap:DividendsPayableCurrentAndNoncurrent
dei:LegalEntity
dei:LegalEntity, us-gaap:AwardType
dei:LegalEntity, us-gaap:PreferredUnitsByName
us-gaap:StatementClassOfStock

us-gaap:EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized
krc:FiniteLivedIntangibleAssetsAndLiabilitiesByMajorClass
us-gaap:FiniteLivedIntangibleAssetsAccumulatedAmortization
krc:FiniteLivedIntangibleAssetsAndLiabilitiesByMajorClass
us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseAfterYearFive
krc:FiniteLivedIntangibleAssetsAndLiabilitiesByMajorClass
us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths
krc:FiniteLivedIntangibleAssetsAndLiabilitiesByMajorClass
us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseYearFive
krc:FiniteLivedIntangibleAssetsAndLiabilitiesByMajorClass
us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseYearFour
krc:FiniteLivedIntangibleAssetsAndLiabilitiesByMajorClass
us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseYearThree
krc:FiniteLivedIntangibleAssetsAndLiabilitiesByMajorClass
us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo
krc:FiniteLivedIntangibleAssetsAndLiabilitiesByMajorClass
us-gaap:FiniteLivedIntangibleAssetsGross
dei:LegalEntity
us-gaap:GeneralPartnersCapitalAccount

us-gaap:InvestmentBuildingAndBuildingImprovements
dei:LegalEntity

us-gaap:LandAndLandImprovements
dei:LegalEntity
us-gaap:RealEstateAndAccumulatedDepreciationDescriptionOfProperty
us-gaap:LesseeOperatingLeaseDiscountRate

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths

us-gaap:LesseeOperatingLeaseLiabilityPaymentsRemainderOfFiscalYear

us-gaap:LessorOperatingLeasePaymentsToBeReceived

us-gaap:LessorOperatingLeasePaymentsToBeReceivedFiveYears

us-gaap:LessorOperatingLeasePaymentsToBeReceivedFourYears

us-gaap:LessorOperatingLeasePaymentsToBeReceivedNextTwelveMonths

us-gaap:LessorOperatingLeasePaymentsToBeReceivedRemainderOfFiscalYear

us-gaap:LessorOperatingLeasePaymentsToBeReceivedThereafter

us-gaap:LessorOperatingLeasePaymentsToBeReceivedThreeYears

us-gaap:LessorOperatingLeasePaymentsToBeReceivedTwoYears
dei:LegalEntity, us-gaap:LongtermDebtType
us-gaap:LineOfCreditFacilityInterestRateAtPeriodEnd
dei:LegalEntity, us-gaap:LongtermDebtType
us-gaap:LineOfCreditFacilityMaximumBorrowingCapacity
dei:LegalEntity, us-gaap:LongtermDebtType
us-gaap:LineOfCreditFacilityRemainingBorrowingCapacity
dei:LegalEntity
us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalAfterYearFive
dei:LegalEntity
us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths
dei:LegalEntity
us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFive
dei:LegalEntity
us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour
dei:LegalEntity
us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree
dei:LegalEntity
us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo
dei:LegalEntity
us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalRemainderOfFiscalYear

us-gaap:MinorityInterestInOperatingPartnerships
dei:LegalEntity, us-gaap:Ownership
us-gaap:MinorityInterestOwnershipPercentageByNoncontrollingOwners
us-gaap:Ownership
us-gaap:Ownership
us-gaap:MinorityInterestOwnershipPercentageByParent

us-gaap:NetRentableArea

us-gaap:NoncontrollingInterestInVariableInterestEntity
us-gaap:ConsolidatedEntities, us-gaap:Ownership
us-gaap:Ownership

us-gaap:OperatingLeaseWeightedAverageDiscountRatePercent

us-gaap:OtherCommitment
dei:LegalEntity
us-gaap:PartnersCapital
dei:LegalEntity
us-gaap:PartnersCapitalAttributableToNoncontrollingInterest
dei:LegalEntity
us-gaap:PartnersCapitalIncludingPortionAttributableToNoncontrollingInterest
dei:LegalEntity, us-gaap:StatementEquityComponents

us-gaap:PrepaidExpenseAndOtherAssets
dei:LegalEntity

us-gaap:PrepaidExpenseCurrentAndNoncurrent
us-gaap:SubsequentEventType

us-gaap:RealEstateAccumulatedDepreciation

us-gaap:RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements

us-gaap:RealEstateAndAccumulatedDepreciationCarryingAmountOfLand

us-gaap:RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements

us-gaap:RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements

us-gaap:RealEstateAndAccumulatedDepreciationInitialCostOfLand

us-gaap:RealEstateGrossAtCarryingValue

us-gaap:RealEstateInvestmentPropertyAccumulatedDepreciation
dei:LegalEntity

us-gaap:RealEstateInvestmentPropertyAtCost
dei:LegalEntity

us-gaap:RealEstateInvestmentPropertyNet
dei:LegalEntity

us-gaap:RedeemableNoncontrollingInterestEquityCommonFairValue
us-gaap:DisposalGroupClassification
us-gaap:RestrictedCash

us-gaap:RestrictedCashAndCashEquivalents
dei:LegalEntity
us-gaap:DisposalGroupClassification

us-gaap:SecuredDebt
dei:LegalEntity
dei:LegalEntity, us-gaap:LongtermDebtType
krc:AwardFeature, us-gaap:AwardType
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue
us-gaap:AwardType

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant
us-gaap:PlanName
us-gaap:AwardType
us-gaap:SharePrice
us-gaap:StatementEquityComponents
us-gaap:SharesIssuedPricePerShare

us-gaap:TradingSecurities
dei:LegalEntity
dei:LegalEntity
us-gaap:UnamortizedDebtIssuanceExpense
dei:LegalEntity, us-gaap:LongtermDebtType
us-gaap:LongtermDebtType
us-gaap:MortgageLoansOnRealEstateDescriptionTypeOfProperty

us-gaap:UnsecuredDebt
dei:LegalEntity
dei:LegalEntity, us-gaap:DebtInstrument, us-gaap:LongtermDebtType
dei:LegalEntity, us-gaap:LongtermDebtType
us-gaap:ValuationAllowancesAndReservesType
us-gaap:ValuationAllowancesAndReservesBalance

Plots across concepts


IncomeStatement
Net Income Loss
Balance Sheet
Operating Lease Right Of Use Asset
Assets
Operating Lease Right Of Use Asset
Current Assets
Accounts Receivable Net Current
NonCurrent Assets
Operating Lease Right Of Use Asset
Liabilities
Dividends Payable Current And Noncurrent
Stockholders Equity
Common Stock Value
CashFlow
Net Cash Provided By Used In Investing Activities
NetCashProvidedByUsedInOperatingActivities
Gain Loss On Sale Of Property Plant Equipment
Shares
Weighted Average Number Of Shares Outstanding Basic
NonoperatingIncomeExpense
Nonoperating Income Expense
LesseeOperatingLeaseLiabilityPaymentsDue
Lessee Operating Lease Liability Payments Remainder Of Fiscal Year
AccountsReceivable
Allowance For Doubtful Accounts Receivable Current

Tables

  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
us-gaap:CommonStockValue ███▇▇▇▄▄▂▂▂▂▂▁▁▁▁▁1.1651.1651.161.1521.1521.1511.061.061.011.011.0071.0071.0060.9880.9860.9840.9840.983
us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding █▁116.917463116.801384NA115.667657115.539725107.389575NA105.359904101.809541101.443179NA101.228334100.15085699.21361NA98.91161298.82737898.018157
us-gaap:WeightedAverageNumberOfSharesOutstandingBasic █▁116.451931116.344375NA115.226324115.084897106.875234NA104.841176100.972355100.90139NA100.67677899.691798.74422NA98.35213998.27547197.388137
us-gaap:EarningsPerShareBasic ▁█▂▁▁▁▂▁▁▁▃▁▁▁▁▂▁▁0.34.270.670.420.170.370.680.410.410.361.590.340.270.360.280.670.30.27
 us-gaap:EarningsPerShareBasic dei:LegalEntity krc:KilroyRealtyL.P.▁█▂▁▁▁▂▁▁▁▃▁▁▁▁▂▁▁0.34.270.670.420.160.370.680.410.410.361.580.340.270.360.280.670.30.26
us-gaap:EarningsPerShareDiluted ▁█▂▁▁▁▂▁▁▁▃▁▁▁▁▂▁▁0.34.260.670.420.170.370.670.410.410.361.580.330.270.360.280.670.30.26
 us-gaap:EarningsPerShareDiluted dei:LegalEntity krc:KilroyRealtyL.P.▁█▂▁▁▁▂▁▁▁▃▁▁▁▁▂▁▁0.34.260.670.420.160.360.670.410.410.361.570.330.270.360.280.670.30.26
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
 Margin from Continuing Operations dei:LegalEntity krc:KilroyRealtyL.P.▇█▇▇▆▆▆▆▄▄▃▂▂▂▁▁▁225.983235.646229.332228.314219.423221.328220.235215.525200.492201.202190.842186.562187.072182.822177.561181.534180.598NA
 Net profit Margin dei:LegalEntity krc:KilroyRealtyL.P.▇█▇▇▆▆▆▆▄▄▃▂▂▂▁▁▁▁225.983235.646229.332228.314219.423221.328220.235215.525200.492201.202190.842186.562187.072182.822177.561181.534180.598179.308
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
us-gaap:AllocatedShareBasedCompensationExpense ▆▅▃▃█▄▄▂▄▄▆▃▆▁▃▂▂▂11.29.67.67.813.68.78.46.88.78.811.28.111.55.17.36.46.56.2
us-gaap:GeneralAndAdministrativeExpense ▄▃▄▂█▂▃▃▃▄▇▂▃▁▂▁▁▁24.50721.98523.08518.57238.59719.0122.36522.57619.85723.34133.87219.27721.76315.55916.83114.51414.30314.933
us-gaap:IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest ▁█▂▁▁▁▂▁▁▁▃▁▁▁▁▂▁▁35.839497.63178.64249.02819.61839.81772.543.84642.19436.903160.2234.427.54936.24628.52971.1131.44833.525
us-gaap:InterestExpense ▇█▇▆▄▃▃▁▁▁▂▁▂▃▃▄▅▅21.3922.33420.97619.46815.88414.44413.93211.63511.72711.24312.43611.07512.71213.49814.56416.15117.97317.352
us-gaap:InterestPaidNet █▃▇▃▄▃▄▁▅▁▃▂▄▂▆▄▃▅29.13312.38725.84310.40415.45910.03515.4685.1318.3034.70612.5227.03915.4379.69920.45815.90112.77118.206
us-gaap:NetIncomeLoss NANA78.64249.02819.61839.81772.543.84642.19436.903160.2234.427.54936.24628.52971.1131.44833.525
 us-gaap:NetIncomeLoss dei:LegalEntity krc:KilroyRealtyL.P.NANA79.65449.72819.83840.38973.7444.58942.90137.508163.30934.99328.01536.89329.01372.40231.97134.054
us-gaap:NetIncomeLossAttributableToNoncontrollingInterest ▅█▂▂▂▃▃▂▂▂▄▁▂▂▁▂▁▁7.0419.784.815.0434.7345.6015.4224.4525.0214.8916.673.914.2064.7254.0114.3783.8583.756
us-gaap:NetIncomeLossAvailableToCommonStockholdersBasic ▁█▂▁▁▁▂▁▁▁▃▁▁▁▁▂▁▁35.839497.63178.64249.02819.61839.81772.543.84642.19436.903160.2234.427.54936.24628.52966.55829.83326.329
us-gaap:NonoperatingIncomeExpense ▁█▂▁▁▁▂▁▁▁▃▁▁▁▁▁▁▁-19.51436.32716.405-17.599-13.046-17.57217.137-10.874-3.942-9.415127.986-10.733-11.941-13.464-18.002-14.625-16.935-16.287
 us-gaap:NonoperatingIncomeExpense dei:LegalEntity krc:KilroyRealtyL.P.▁█▂▁▁▁▂▁▁▁▃▁▁▁▂▁▁-19.51436.32716.405-17.599-13.046-17.57217.137-10.874-3.942-9.415127.986-10.733-11.941-13.46421.954-14.625-16.935NA
us-gaap:OperatingExpenses ▆▆▅▅█▅▅▅▄▄▄▂▃▁▁▁▁▁163.593164.562162.285156.644182.025158.338159.45156.353149.335149.993151.938137.519143.376128.387127.019129.12128.357127.997
us-gaap:ProfitLoss ▁█▂▁▁▁▂▁▁▁▃▁▁▁▁▂▁▁42.88507.41183.45254.07124.35245.41877.92248.29847.21541.794166.8938.3131.75540.97132.5475.48835.30637.281
us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax ▁▁█▁▁▁█▁▁▇▇▇▇▇▆▇▇▆1.510.99229.3321.1921.0672.695220.2353.2042.863201.202190.842186.562187.072182.822177.561181.534180.598179.308
us-gaap:Revenues ▇█▇▇▆▆▆▆▄▄▃▂▂▂▁▁▁▁225.983235.646229.332228.314219.423221.328220.235215.525200.492201.202190.842186.562187.072182.822177.561181.534180.598179.308
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
us-gaap:Assets ██▇▇▇▇▅▅▃▃▃▂▂▁▁▁▁▁10434.76610384.35310000.7089984.6089658.6659735.1478900.0948623.8158094.7217883.9877765.7077562.2367384.7846965.9326802.8386838.2996995.3676993.665
us-gaap:Liabilities ████▇▇▆▆▅▄▄▃▃▂▁▁▂▂4741.3014681.4614723.3874732.6444405.0764457.6324329.2364084.3063907.8183700.8053564.4463487.3173320.9113018.462842.5222942.4193032.8963027.524
us-gaap:LiabilitiesAndStockholdersEquity ██▇▇▇▇▅▅▃▃▃▂▂▁▁▁▁▁10434.76610384.35310000.7089984.6089658.6659735.1478900.0948623.8158094.7217883.9877765.7077562.2367384.7846965.9326802.8386838.2996995.3676993.665
us-gaap:StockholdersEquity ██▆▆▆▆▃▃▂▂▂▁▁▁▁▁▁▁5446.9435458.2455029.9434968.1424972.2914992.154293.514264.6493915.5323914.5243929.9073804.7583802.9273686.8593700.7933689.8633756.4693759.323
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
us-gaap:CashAndCashEquivalentsAtCarryingValue ▅▆▇█▆▇▁▃▁▁▁▁▁▁▁▁▄▅519.307657.819731.991849.009605.012762.13460.044297.6252.41549.69351.60486.51750.81753.06957.64964.954387.616478.391
us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents ▅█▄▄▃▄▁▂▁▁▂▁▁▁▁▂▂▃969.7641686.578823.13865.309621.312778.43476.344303.9258.71555.993171.03486.51750.81753.06966.798244.23395.865485.59
us-gaap:AccountsReceivableNetCurrent NANA12.007NANANA26.489NANANA20.17617.51915.14417.60216.92618.62613.70313.74
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
us-gaap:FurnitureAndFixturesGross ▃▃▄▄█▁▁▁▁▁▂▂▂▂▃▃▃▃40.67940.75243.36742.89953.0635.77635.28636.19236.46636.04336.83336.71737.79938.54139.68639.88939.69339.371
 us-gaap:FiniteLivedIntangibleAssetsNet krc:FiniteLivedIntangibleAssetsAndLiabilitiesByMajorClass krc:DeferredLeasingCostsNANA196.279NANANA185.881NANANA166.1NANANA146.681NANANA
 us-gaap:FiniteLivedIntangibleAssetsNet krc:FiniteLivedIntangibleAssetsAndLiabilitiesByMajorClass us-gaap:LeasesAcquiredInPlaceNANA14.67NANANA26.429NANANA30.352NANANA35.472NANANA
us-gaap:OperatingLeaseRightOfUseAsset █▃▃▃▃▃▃▁▁▁141.52995.31295.52395.73395.9496.14596.34883.282.64782.794NANANANANANANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
 us-gaap:LongTermDebt dei:LegalEntity,us-gaap:LongtermDebtType krc:KilroyRealtyL.P.,us-gaap:SecuredDebtNANA253.582NANANA258.593NANANA335.531NANANA340.8NANANA
 us-gaap:LongTermDebt us-gaap:LongtermDebtType us-gaap:UnsecuredDebtNANA3700.0NANANA3300.0NANANA2600.0NANANA2000.0NANANA
us-gaap:MinorityInterest ▅▄▅███▇▇▇▇▇▇▆▆▆▁▁▁246.522244.647247.378283.822281.298285.365277.348274.86271.371268.658271.354270.161260.946260.613259.523206.017206.002206.818
us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearTwo █▁▁▁7.4895.6625.6425.642NANANANANANANANANANANANANANA
us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearThree █▁▁▁7.5255.6625.6625.662NANANANANANANANANANANANANANA
us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFour █▁▁▁7.5615.6625.6625.662NANANANANANANANANANANANANANA
us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFive █▁▁▁7.5975.6625.6625.662NANANANANANANANANANANANANANA
us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive █▁▁▁440.411275.062280.723280.723NANANANANANANANANANANANANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
us-gaap:StockholdersEquity ██▆▆▆▆▃▃▂▂▂▁▁▁▁▁▁▁5446.9435458.2455029.9434968.1424972.2914992.154293.514264.6493915.5323914.5243929.9073804.7583802.9273686.8593700.7933689.8633756.4693759.323
us-gaap:StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest ██▆▆▆▆▄▃▂▂▂▂▂▁▁▁▁▁5693.4655702.8925277.3215251.9645253.5895277.5154570.8584539.5094186.9034183.1824201.2614074.9194063.8733947.4723960.3163895.883962.4713966.141
us-gaap:CommonStockValue ███▇▇▇▄▄▂▂▂▂▂▁▁▁▁▁1.1651.1651.161.1521.1521.1511.061.061.011.011.0071.0071.0060.9880.9860.9840.9840.983
us-gaap:AdditionalPaidInCapital ██████▄▄▂▂▂▂▂▁▁▁▁▁5134.325122.5845131.9165089.9265084.3625067.1814350.9174342.2963984.8673976.2043976.9533965.4053951.2893816.3853822.4923797.5463792.0283782.291
us-gaap:RetainedEarningsAccumulatedDeficit ██▂▂▂▂▂▂▂▂▃▁▁▁▂▂▁▂311.458334.496-103.133-122.936-113.223-76.182-58.467-78.707-70.345-62.69-48.053-161.654-149.368-130.514-122.685-108.667-132.799-120.207
us-gaap:MinorityInterest ▅▄▅███▇▇▇▇▇▇▆▆▆▁▁▁246.522244.647247.378283.822281.298285.365277.348274.86271.371268.658271.354270.161260.946260.613259.523206.017206.002206.818
us-gaap:StockIssuedDuringPeriodValueNewIssues NANANA-0.074-0.045721.794NA353.904NANA-0.0516.597124.147NA17.246-0.02-0.017308.849
 us-gaap:StockIssuedDuringPeriodValueNewIssues us-gaap:StatementEquityComponents us-gaap:AdditionalPaidInCapitalNANANA-0.074-0.045721.705NA353.854NANA-0.0516.596124.13NA17.244-0.02-0.017308.805
 us-gaap:StockIssuedDuringPeriodValueNewIssues us-gaap:StatementEquityComponents us-gaap:ParentNANANA-0.074-0.045721.794NA353.904NANA-0.0516.597124.147NA17.246-0.02-0.017308.849
us-gaap:AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue █▁11.1939.604NA7.79413.5768.653NA6.8088.7328.81711.2128.08111.5035.0947.3066.3856.4596.169
us-gaap:MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders ▁█4.69211.68NA1.4584.2812.617NA3.0411.4876.3094.7970.5414.2882.1774.3083.5833.9234.728
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
us-gaap:NetCashProvidedByUsedInOperatingActivities ▂█▃█▄▆▃▇▁▄▃▇▄▄▁▄▂▄72.314144.15291.61139.958101.082122.9485.131135.7365.8799.7992.828128.37294.73494.10970.4798.12682.04196.375
us-gaap:NetCashProvidedByUsedInInvestingActivities ▁█▄▄▄▃▂▃▃▃▄▄▂▃▃▄▄▄-716.948812.25-66.427-101.36-162.929-211.412-501.095-310.148-203.504-213.532-3.515-141.054-416.691-247.655-178.3935.306-129.63-86.388
 us-gaap:NetCashProvidedByUsedInInvestingActivities dei:LegalEntity krc:KilroyRealtyL.P.▁█▄▄▄▃▂▃▃▃▄▄▂▃▃▄-716.948812.25-66.427-101.36-162.929-211.412-501.095-310.148-203.504-213.532-3.515-141.054-416.691-247.655-178.3935.306NANA
us-gaap:NetCashProvidedByUsedInFinancingActivities ▂▂▂▄▂█▄▆▄▃▃▃▅▄▂▁▃▄-72.18-92.954-67.362205.399-95.275790.562188.388419.623140.356-1.299-4.79648.382319.705139.817-69.512-285.067-42.136225.474
 us-gaap:NetCashProvidedByUsedInFinancingActivities dei:LegalEntity krc:KilroyRealtyL.P.▂▂▂▄▂█▄▆▄▃▃▃▅▄▂▁-72.18-92.954-67.362205.399-95.275790.562188.388419.623140.356-1.299-4.79648.382319.705139.817-69.512-285.067NANA
us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect ▁█▄▅▃▇▃▅▄▄▅▄▄▄▃▄▄▅-716.814863.448-42.179243.997-157.122702.09-227.576245.2052.722-115.04184.51735.7-2.252-13.729-177.432-151.635-89.725235.461
 us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect dei:LegalEntity krc:KilroyRealtyL.P.▁█▄▅▃▇▃▅▄▄▅▄▄▄▃▄-716.814863.448-42.179243.997-157.122702.09-227.576245.2052.722-115.04184.51735.7-2.252-13.729-177.432-151.635NANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
us-gaap:DepreciationDepletionAndAmortization ▆▇▆▆█▆▅▅▄▃▃▂▂▂▁▂▂▁72.03774.43171.51270.42275.98172.43868.07867.98567.01164.97163.6461.60962.95661.67759.98761.14161.059.734
us-gaap:NetCashProvidedByUsedInOperatingActivities ▂█▃█▄▆▃▇▁▄▃▇▄▄▁▄▂▄72.314144.15291.61139.958101.082122.9485.131135.7365.8799.7992.828128.37294.73494.10970.4798.12682.04196.375
us-gaap:NetIncomeLoss NANA78.64249.02819.61839.81772.543.84642.19436.903160.2234.427.54936.24628.52971.1131.44833.525
 us-gaap:NetIncomeLoss dei:LegalEntity krc:KilroyRealtyL.P.NANA79.65449.72819.83840.38973.7444.58942.90137.508163.30934.99328.01536.89329.01372.40231.97134.054
us-gaap:ProfitLoss ▁█▂▁▁▁▂▁▁▁▃▁▁▁▁▂▁▁42.88507.41183.45254.07124.35245.41877.92248.29847.21541.794166.8938.3131.75540.97132.5475.48835.30637.281
us-gaap:ShareBasedCompensation ▆▅▃▃█▄▄▃▄▄▆▄▅▁▃▂▂▁9.5387.8775.9555.97911.5286.7836.8076.1186.8717.2119.0316.6348.6693.5985.4294.6514.8324.134
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
us-gaap:NetCashProvidedByUsedInInvestingActivities ▁█▄▄▄▃▂▃▃▃▄▄▂▃▃▄▄▄-716.948812.25-66.427-101.36-162.929-211.412-501.095-310.148-203.504-213.532-3.515-141.054-416.691-247.655-178.3935.306-129.63-86.388
 us-gaap:NetCashProvidedByUsedInInvestingActivities dei:LegalEntity krc:KilroyRealtyL.P.▁█▄▄▄▃▂▃▃▃▄▄▂▃▃▄-716.948812.25-66.427-101.36-162.929-211.412-501.095-310.148-203.504-213.532-3.515-141.054-416.691-247.655-178.3935.306NANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
us-gaap:NetCashProvidedByUsedInFinancingActivities ▂▂▂▄▂█▄▆▄▃▃▃▅▄▂▁▃▄-72.18-92.954-67.362205.399-95.275790.562188.388419.623140.356-1.299-4.79648.382319.705139.817-69.512-285.067-42.136225.474
 us-gaap:NetCashProvidedByUsedInFinancingActivities dei:LegalEntity krc:KilroyRealtyL.P.▂▂▂▄▂█▄▆▄▃▃▃▅▄▂▁-72.18-92.954-67.362205.399-95.275790.562188.388419.623140.356-1.299-4.79648.382319.705139.817-69.512-285.067NANA
 us-gaap:PaymentsOfDividends us-gaap:SubsequentEventType us-gaap:SubsequentEventNANANANANANANANANANANANANANANANANANA
us-gaap:PaymentsOfDividendsCommonStock ▂▂▂▂▂▂▂▁▁▁▁▁▁▁▁▁▁█58.858.59458.59256.79956.78852.39952.4449.95446.86246.99646.77246.70842.89843.03342.70442.70137.649217.643
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31

Common Stock Value

us-gaap:CommonStockValue

us-gaap:CommonStockValue


Common
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value1.1651.1651.161.1521.1521.1511.061.061.011.011.0071.0071.0060.9880.9860.9840.9840.9830.9320.9230.9230.9220.9230.9220.8840.880.8630.8340.8290.8220.8220.8210.7570.7530.7490.7470.6890.6830.5880.5850.5850.5240.5230.431
Percentage of CommonStockValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Weighted Average Number Of Diluted Shares Outstanding

us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding

us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding


Weighted
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-09-302011-06-302011-03-312010-09-302010-06-302010-03-31
Value1161161151151071051011011011009998989892929292888785848476777477716863585752525043
Percentage of WeightedAverageNumberOfDilutedSharesOutstanding100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding dei:LegalEntity

krc:KilroyRealtyL.P.


Weighted
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-30
Value118117117117109107103103103102101100100
Percentage of WeightedAverageNumberOfDilutedSharesOutstanding101.0101.0101.7101.7101.9101.9102.0102.0102.0102.1102.1102.1102.1

Weighted Average Number Of Shares Outstanding Basic

us-gaap:WeightedAverageNumberOfSharesOutstandingBasic

us-gaap:WeightedAverageNumberOfSharesOutstandingBasic


Weighted
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-09-302011-06-302011-03-312010-09-302010-06-302010-03-31
Value116116115115106104100100100999898989792929292888683828276757477716863585752525043
Percentage of WeightedAverageNumberOfSharesOutstandingBasic100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:WeightedAverageNumberOfSharesOutstandingBasic dei:LegalEntity

krc:KilroyRealtyL.P.


Weighted
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-30
Value117117117117108106102102102101100100100
Percentage of WeightedAverageNumberOfSharesOutstandingBasic101.0101.0101.7101.7101.9101.9102.0102.0102.0102.1102.1102.1102.1

Earnings Per Share Basic

us-gaap:EarningsPerShareBasic

us-gaap:EarningsPerShareBasic


Earnings
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value0.34.270.670.420.170.370.680.410.410.361.590.340.270.360.280.670.30.270.290.540.321.850.271.10.610.450.320.180.331.170.230.070.08-0.022.49-0.04-0.021.060.680.17-0.010.010.02-0.01-0.040.11
Percentage of EarningsPerShareBasic100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:EarningsPerShareBasic dei:LegalEntity

krc:KilroyRealtyL.P.


Earnings
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value0.34.270.670.420.160.370.680.410.410.361.580.340.270.360.280.670.30.26
Percentage of EarningsPerShareBasic100.0100.0100.0100.094.1100.0100.0100.0100.0100.099.4100.0100.0100.0100.0100.0100.096.3

Earnings Per Share Diluted

us-gaap:EarningsPerShareDiluted

us-gaap:EarningsPerShareDiluted


Earnings
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value0.34.260.670.420.170.370.670.410.410.361.580.330.270.360.280.670.30.260.290.540.311.840.271.090.610.450.320.180.321.140.230.070.08-0.022.45-0.04-0.021.060.680.17-0.010.010.02-0.01-0.040.11
Percentage of EarningsPerShareDiluted100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:EarningsPerShareDiluted dei:LegalEntity

krc:KilroyRealtyL.P.


Earnings
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value0.34.260.670.420.160.360.670.410.410.361.570.330.270.360.280.670.30.26
Percentage of EarningsPerShareDiluted100.0100.0100.0100.094.197.3100.0100.0100.0100.099.4100.0100.0100.0100.0100.0100.0100.0

Allocated Share Based Compensation Expense

us-gaap:AllocatedShareBasedCompensationExpense

us-gaap:AllocatedShareBasedCompensationExpense


Allocated
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-30
Value119.67.67.8138.78.46.88.78.8118.1115.17.36.46.56.27.36.86.65.95.34.35.04.34.24.03.52.92.42.52.32.49.62.42.41.51.41.41.4
Percentage of AllocatedShareBasedCompensationExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax741.7969.73.3654.41274.6322.83.8212.2303.94.45.94.36.12.84.13.53.63.50.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:AllocatedShareBasedCompensationExpense us-gaap:AwardType

krc:A2021PerformanceBasedRSUs


Allocated
Period End2021-06-302021-03-31
Value1.81.0
Percentage of AllocatedShareBasedCompensationExpense16.110.4
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax119.2101.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax krc:A2021PerformanceBasedRSUs0.00.0

krc:AcceleratedCompensationRelatedtoSeverancePackages


Allocated
Period End2021-06-302020-09-302020-06-30
Value4.10.24.1
Percentage of AllocatedShareBasedCompensationExpense36.62.630.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax271.516.8384.3
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax krc:AcceleratedCompensationRelatedtoSeverancePackages0.00.00.0

krc:PerformanceBasedRSUs


Allocated
Period End2020-09-30
Value1.2
Percentage of AllocatedShareBasedCompensationExpense15.4
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax100.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax krc:PerformanceBasedRSUs0.0

General And Administrative Expense

us-gaap:GeneralAndAdministrativeExpense

us-gaap:GeneralAndAdministrativeExpense


General
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value2421231838192222192333192115161414141613131312101212121111109.91109.8559.6699.4438.7279.2518.7677.7936.3557.446.566.8677.2736.7287.095
Percentage of GeneralAndAdministrativeExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax1623.02220.710.11558.13617.3705.410.2704.6693.611.617.710.311.68.59.58.07.98.30.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:GeneralAndAdministrativeExpense dei:LegalEntity

krc:KilroyRealtyL.P.


General
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value2421231838192222192333192115161414
Percentage of GeneralAndAdministrativeExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax1623.02220.710.11558.13617.3705.410.2704.6693.611.617.710.311.68.59.58.07.9
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax krc:KilroyRealtyL.P.1623.02220.70.01558.13617.3705.40.0704.6693.61282.50.00.00.00.00.00.00.0

Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest

us-gaap:IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest

us-gaap:IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest


Income
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value35497784919397243423616034273628713133425332174291065844191316115.5312.6839.682.3883.911-0.6652.2774.9623.2651.4271.1811.8431.8853.3190.0476.647
Percentage of IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax2373.450265.834.34113.11838.61477.432.91368.51473.818.384.018.414.719.816.139.217.418.70.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest dei:LegalEntity

krc:KilroyRealtyL.P.


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
Value365027949194073444237163342836297231
Percentage of IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest101.0101.0101.3101.4101.1101.4101.7101.7101.7101.6101.9101.7101.7101.8101.7101.8101.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax2396.950759.334.74171.81859.21498.733.51391.71498.518.685.618.815.020.216.339.917.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax krc:KilroyRealtyL.P.2396.950759.30.04171.81859.21498.70.01391.71498.52060.90.00.00.00.00.00.00.0

Interest Expense

us-gaap:InterestExpense

us-gaap:InterestExpense


Interest
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value21222019151413111111121112131416171714141411131214161716161717181919181919212324212019151311
Percentage of InterestExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax1416.62256.09.11633.21488.7536.06.3363.1409.65.66.55.96.87.48.28.910.09.70.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:InterestExpense dei:LegalEntity

krc:KilroyRealtyL.P.


Interest
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value2122201915141311111112111213141617
Percentage of InterestExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax1416.62256.09.11633.21488.7536.06.3363.1409.65.66.55.96.87.48.28.910.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax krc:KilroyRealtyL.P.1416.62256.00.01633.21488.7536.00.0363.1409.6617.70.00.00.00.00.00.00.0

Interest Paid Net

us-gaap:InterestPaidNet

us-gaap:InterestPaidNet


Interest
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value291225101510155.13184.706127.039159.69920151218111711139.06913121916111714181520112212324.487267.502276.965197.548116.98
Percentage of InterestPaidNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax1929.31251.211.3872.81448.8372.47.0160.1639.32.36.63.88.35.311.58.87.110.20.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:InterestPaidNet dei:LegalEntity

krc:KilroyRealtyL.P.


Interest
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value291225101510155.13184.706127.039159.6992015
Percentage of InterestPaidNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax1929.31251.211.3872.81448.8372.47.0160.1639.32.36.63.88.35.311.58.8
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax krc:KilroyRealtyL.P.1929.31251.20.0872.81448.8372.40.0160.1639.3258.60.00.00.00.00.00.0

Net Income Loss

us-gaap:NetIncomeLoss

us-gaap:NetIncomeLoss


Net
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value78491939724342361603427362871313332533217428104574330183099228.8969.9462.411892.5892.2977643133.4824.8335.3343.6732.0168.685
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 RevenueFromContractWithCustomerExcludingAssessedTax34.34113.11838.61477.432.91368.51473.818.384.018.414.719.816.139.217.418.70.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:NetIncomeLoss dei:LegalEntity

krc:KilroyRealtyL.P.


Net
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value794919407344423716334283629723134
Percentage of NetIncomeLoss101.3101.4101.1101.4101.7101.7101.7101.6101.9101.7101.7101.8101.7101.8101.7101.6
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax34.74171.81859.21498.733.51391.71498.518.685.618.815.020.216.339.917.719.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax krc:KilroyRealtyL.P.0.04171.81859.21498.70.01391.71498.52060.90.00.00.00.00.00.00.00.0

Net Income Loss Attributable To Noncontrolling Interest

us-gaap:NetIncomeLossAttributableToNoncontrollingInterest

us-gaap:NetIncomeLossAttributableToNoncontrollingInterest


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-31
Value7.0419.784.815.0434.7345.6015.4224.4525.0214.8916.673.914.2064.7254.0114.3783.8583.7562.682.481.0453.8050.6731.9451.090.815
Percentage of NetIncomeLossAttributableToNoncontrollingInterest100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax466.3987.92.1423.1443.7207.82.5139.0175.42.43.52.12.22.62.32.42.12.10.00.00.00.00.00.00.00.0

us-gaap:NetIncomeLossAttributableToNoncontrollingInterest dei:LegalEntity

krc:KilroyRealtyL.P.


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
Value6.6874.8943.7984.3434.5145.0294.1823.7094.3144.2863.5813.3173.744.0783.5273.0863.335
Percentage of NetIncomeLossAttributableToNoncontrollingInterest95.050.079.086.195.489.877.183.385.987.653.784.888.986.387.970.586.4
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax442.8494.31.7364.3423.1186.61.9115.8150.72.11.91.82.02.22.01.71.8
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax krc:KilroyRealtyL.P.442.8494.30.0364.3423.1186.60.0115.8150.7235.50.00.00.00.00.00.00.0

Net Income Loss Available To Common Stockholders Basic

us-gaap:NetIncomeLossAvailableToCommonStockholdersBasic

us-gaap:NetIncomeLossAvailableToCommonStockholdersBasic


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value3549778491939724342361603427362866292629502917025101543927152796195.5846.633-0.903185-2.753-0.8673910-0.3171.0341.535-0.126-1.7834.886
Percentage of NetIncomeLossAvailableToCommonStockholdersBasic100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax2373.450265.834.34113.11838.61477.432.91368.51473.818.384.018.414.719.816.136.716.514.70.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:NetIncomeLossAvailableToCommonStockholdersBasic dei:LegalEntity

krc:KilroyRealtyL.P.


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value36502794919407344423716334283629673026
Percentage of NetIncomeLossAvailableToCommonStockholdersBasic101.0101.0101.3101.4101.1101.4101.7101.7101.7101.6101.9101.7101.7101.8101.7101.9101.8102.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax2396.950759.334.74171.81859.21498.733.51391.71498.518.685.618.815.020.216.337.416.815.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax krc:KilroyRealtyL.P.2396.950759.30.04171.81859.21498.70.01391.71498.52060.90.00.00.00.00.00.00.00.0

Nonoperating Income Expense

us-gaap:NonoperatingIncomeExpense

us-gaap:NonoperatingIncomeExpense


Nonoperating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value-19.5143616-17.599-13.046-17.57217-10.874-3.942-9.415127-10.733-11.941-13.464-18.002-14.625-16.935-16.287-13.97-14.438-14.073-11.558-13.055-13.513-14.353-16.518-17.717-16.617-15.601-17.075-17.298-18.18-19.415-19.342-18.797-19.524-19.265-20.679-22.955-24.021-21.17-20.692-18.783-15.516-17.67-11.572
Percentage of NonoperatingIncomeExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-1292.144073.47.2-1476.4-1222.7-652.07.8-339.4-137.7-4.767.1-5.8-6.4-7.4-10.1-8.1-9.4-9.10.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:NonoperatingIncomeExpense dei:LegalEntity

krc:KilroyRealtyL.P.


Nonoperating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value-19.5143616-17.599-13.046-17.57217-10.874-3.942-9.415127-10.733-11.941-13.46421-14.625-16.935
Percentage of NonoperatingIncomeExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0-122.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-1292.144073.47.2-1476.4-1222.7-652.07.8-339.4-137.7-4.767.1-5.8-6.4-7.412.4-8.1-9.4
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax krc:KilroyRealtyL.P.-1292.144073.40.0-1476.4-1222.7-652.00.0-339.4-137.7-517.30.00.00.00.00.00.00.0

Operating Expenses

us-gaap:OperatingExpenses

us-gaap:OperatingExpenses


Operating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value16316416215618215815915614914915113714312812712912812711911511110110499104102104991009797949595888582737171676260605246
Percentage of OperatingExpenses100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax10834.016622.470.813141.317059.55875.372.44879.95216.074.579.673.776.670.271.571.171.171.40.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:OperatingExpenses dei:LegalEntity

krc:KilroyRealtyL.P.


Operating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value163164162156182158159156149149151137143128127129128
Percentage of OperatingExpenses100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax10834.016622.470.813141.317059.55875.372.44879.95216.074.579.673.776.670.271.571.171.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax krc:KilroyRealtyL.P.10834.016622.40.013141.317059.55875.30.04879.95216.08241.40.00.00.00.00.00.00.0

Profit Loss

us-gaap:ProfitLoss

us-gaap:ProfitLoss


Profit
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value42507835424457748474116638314032753537355633178291065844311931101239.027102.3881932.5222.2777844143.4724.8675.3843.6691.9568.877
Percentage of ProfitLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax2839.751253.636.44536.22282.31685.335.41507.41649.120.887.420.517.022.418.341.619.520.80.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:ProfitLoss dei:LegalEntity

krc:KilroyRealtyL.P.


Profit
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value42507835424457748474116638314032753537
Percentage of ProfitLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax2839.751253.636.44536.22282.31685.335.41507.41649.120.887.420.517.022.418.341.619.520.8
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax krc:KilroyRealtyL.P.2839.751253.60.04536.22282.31685.30.01507.41649.12296.40.00.00.00.00.00.00.00.0

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

krc:KilroyRealtyL.P., krc:PartnersCapitalCommonUnit


Profit
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value365024919404442371633428362972
Percentage of ProfitLoss84.499.092.081.588.992.390.989.797.991.388.290.089.295.9
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax2396.950759.34171.81859.21498.71391.71498.518.685.618.815.020.216.339.9
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax krc:KilroyRealtyL.P. krc:PartnersCapitalCommonUnit0.00.00.00.00.00.00.00.00.00.00.00.00.00.0

krc:KilroyRealtyL.P., us-gaap:NoncontrollingInterest


Profit
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value6.6874.8944.3434.5145.0293.7094.3144.2863.5813.3173.744.0783.5273.086
Percentage of ProfitLoss15.61.08.018.511.17.79.110.32.18.711.810.010.84.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax442.8494.3364.3423.1186.6115.8150.72.11.91.82.02.22.01.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax krc:KilroyRealtyL.P. us-gaap:NoncontrollingInterest0.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:ProfitLoss us-gaap:StatementEquityComponents

us-gaap:AccumulatedDistributionsInExcessOfNetIncome


Profit
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value354974919394342361603427362871313332533217428104574330183099228.8969.9462.411892.592.2977643133.4824.8335.3343.6732.0168.685
Percentage of ProfitLoss83.698.190.780.687.790.889.488.396.089.886.888.587.794.289.189.992.495.696.997.997.798.298.198.198.298.398.198.098.298.598.4100.997.7102.7100.997.797.497.9100.399.399.1100.1103.197.8
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax2373.450265.84113.11838.61477.41368.51473.818.384.018.414.719.816.139.217.418.70.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:AccumulatedDistributionsInExcessOfNetIncome0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:NoncontrollingInterest


Profit
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value7.0419.785.0434.7345.6014.4525.0214.8916.673.914.2064.7254.0114.3783.8583.7562.682.481.0453.8050.6731.9451.090.8150.5780.3210.6032.0870.4190.1310.157-0.0224.479-0.067-0.021.7951.1540.296-0.010.0340.05-0.004-0.060.192
Percentage of ProfitLoss16.41.99.319.412.39.210.611.74.010.213.211.512.35.810.910.17.64.43.12.12.31.81.91.91.81.71.92.01.81.51.6-0.92.3-2.7-0.92.32.62.1-0.30.70.9-0.1-3.12.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax466.3987.9423.1443.7207.8139.0175.42.43.52.12.22.62.32.42.12.10.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:NoncontrollingInterest0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:Parent


Profit
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value354974919394342361603427362871313332533217428104574330183099228.8969.9462.411892.592.2977643133.4824.8335.3343.6732.0168.685
Percentage of ProfitLoss83.698.190.780.687.790.889.488.396.089.886.888.587.794.289.189.992.495.696.997.997.798.298.198.198.298.398.198.098.298.598.4100.997.7102.7100.997.797.497.9100.399.399.1100.1103.197.8
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax2373.450265.84113.11838.61477.41368.51473.818.384.018.414.719.816.139.217.418.70.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:Parent0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Revenue From Contract With Customer Excluding Assessed Tax

us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax

us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value1.510.992291.1921.0672.6952203.2042.863201190186187182177181180179
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax dei:LegalEntity

krc:KilroyRealtyL.P.


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value1.510.991.1371.1921.0672.6953.0953.2042.8631.82
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax100.0100.00.5100.0100.0100.01.4100.0100.00.9
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax100.0100.00.5100.0100.0100.01.4100.0100.00.9
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax krc:KilroyRealtyL.P.100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Revenues

us-gaap:Revenues

us-gaap:Revenues


Revenues
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value225235229228219221220215200201190186187182177181180179
Percentage of Revenues100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax14965.823802.6100.019153.920564.58212.5100.06726.77002.9100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:Revenues dei:LegalEntity

krc:KilroyRealtyL.P.


Revenuesdei:
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
Value225235229228219221220215200201190186187182177181180179
Percentage of Revenues100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax14965.823802.6100.019153.920564.58212.5100.06726.77002.9100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax krc:KilroyRealtyL.P.14965.823802.620169.919153.920564.58212.57115.86726.77002.911055.10.00.00.00.00.00.00.00.0

Assets

us-gaap:Assets

us-gaap:Assets


Assets
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value10434103841000099849658973589008623809478837765756273846965680268386995699367066332629862045939635356865725563354875273511451115089477547554616421538473959344633673264284128162084
Percentage of Assets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:Assets dei:LegalEntity

krc:KilroyRealtyL.P.


Assetsdei:
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
Value10434103841000099849658973589008623809478837765756273846802
Percentage of Assets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets krc:KilroyRealtyL.P.100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:Assets us-gaap:ConsolidatedEntities

us-gaap:VariableInterestEntityPrimaryBeneficiary


Assetsus-gaap:
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-31
Value461454469477686686676
Percentage of Assets4.44.44.74.87.17.07.6
Percentage of Assets4.44.44.74.87.17.07.6
Percentage of Assets us-gaap:VariableInterestEntityPrimaryBeneficiary100.0100.0100.0100.0100.0100.0100.0

us-gaap:Assets us-gaap:ConsolidatedEntities, us-gaap:InvestmentType

us-gaap:VariableInterestEntityPrimaryBeneficiary, us-gaap:RealEstateInvestment


Assetsus-gaap:
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-31
Value393389394395598599598
Percentage of Assets3.83.83.94.06.26.26.7
Percentage of Assets3.83.83.94.06.26.26.7
Percentage of Assets us-gaap:VariableInterestEntityPrimaryBeneficiary us-gaap:RealEstateInvestment100.0100.0100.0100.0100.0100.0100.0

Liabilities

us-gaap:Liabilities

us-gaap:Liabilities


Liabilities
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value47414681472347324405445743294084390737003564348733203018284229423032302729472690287127792704311627732866290928672650252825942565253725222380215420402155204519991887166516251126
Percentage of Liabilities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets45.445.147.247.445.645.848.647.448.346.945.946.145.043.341.843.043.443.343.942.545.644.845.549.048.850.151.652.250.349.450.850.453.153.151.651.153.054.459.459.457.858.657.754.1

us-gaap:Liabilities dei:LegalEntity

krc:KilroyRealtyL.P.


Liabilitiesdei:
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
Value47414681472347324405445743294084390737003564348733202842
Percentage of Liabilities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets45.445.147.247.445.645.848.647.448.346.945.946.145.041.8
Percentage of Assets krc:KilroyRealtyL.P.45.445.147.247.445.645.848.647.448.346.945.946.145.041.8

us-gaap:Liabilities us-gaap:ConsolidatedEntities

us-gaap:VariableInterestEntityPrimaryBeneficiary


Liabilitiesus-gaap:
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-31
Value28343335424340
Percentage of Liabilities0.60.70.70.71.01.00.9
Percentage of Assets0.30.30.30.40.40.50.5
Percentage of Assets us-gaap:VariableInterestEntityPrimaryBeneficiary6.17.67.27.46.26.45.9

Liabilities And Stockholders Equity

us-gaap:LiabilitiesAndStockholdersEquity

us-gaap:LiabilitiesAndStockholdersEquity


Liabilities
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value10434103841000099849658973589008623809478837765756273846965680268386995699367066332629862045939635356865725563354875273511451115089477547554616421538473959344633673264284128162084
Percentage of LiabilitiesAndStockholdersEquity100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:LiabilitiesAndStockholdersEquity dei:LegalEntity

krc:KilroyRealtyL.P.


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
Value10434103841000099849658973589008623809478837765756273846802
Percentage of LiabilitiesAndStockholdersEquity100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets krc:KilroyRealtyL.P.100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Stockholders Equity

us-gaap:StockholdersEquity

us-gaap:StockholdersEquity


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value5446545850294968497249924293426439153914392938043802368637003689375637593542346333303328317031722852280026662563256625292461246821862185218920191693169012931261127010711086854
Percentage of StockholdersEquity100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets52.252.650.349.851.551.348.249.548.449.750.650.351.552.954.454.053.753.852.854.752.953.653.449.950.248.947.346.748.749.548.248.545.845.947.447.944.042.737.537.538.937.738.641.0

Cash And Cash Equivalents At Carrying Value

us-gaap:CashAndCashEquivalentsAtCarryingValue

us-gaap:CashAndCashEquivalentsAtCarryingValue


Cash
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312008-12-312007-12-31
Value5196577318496057626029752495186505357643874781932502638565672850232002495351971071351616183744.77715256.708148.31329109.8839.55311
Percentage of CashAndCashEquivalentsAtCarryingValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets5.06.37.38.56.37.80.73.50.60.60.71.10.70.80.80.95.56.82.94.00.40.61.08.90.50.90.43.70.51.90.73.92.32.90.40.40.59.50.10.50.80.20.50.00.00.00.50.00.0

us-gaap:CashAndCashEquivalentsAtCarryingValue dei:LegalEntity

krc:KilroyRealtyL.P.


Cash
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302016-12-312015-12-31
Value51965773184960576260297524951865053576438719356
Percentage of CashAndCashEquivalentsAtCarryingValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets5.06.37.38.56.37.80.73.50.60.60.71.10.70.80.80.95.52.91.0
Percentage of Assets krc:KilroyRealtyL.P.5.06.37.38.56.37.80.73.50.60.60.71.10.70.00.80.00.00.00.0

Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents


Cash
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312015-12-312014-12-31
Value9691686823865621778763035855171865053662443954852505798
Percentage of CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets9.316.28.28.76.48.00.93.50.70.72.21.10.70.81.03.65.76.93.71.01.8

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents dei:LegalEntity

krc:KilroyRealtyL.P.


Cash
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302016-12-312015-12-31
Value96916868238656217787630358551718650536624439525057
Percentage of CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets9.316.28.28.76.48.00.93.50.70.72.21.10.70.81.03.65.73.71.0
Percentage of Assets krc:KilroyRealtyL.P.9.316.28.28.76.48.00.93.50.70.72.21.10.70.01.00.00.00.00.0

Accounts Receivable Net Current

us-gaap:AccountsReceivableNetCurrent

us-gaap:AccountsReceivableNetCurrent


Accounts
Period End2020-12-312019-12-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-31
Value12262017151716181313139.709109.5411
Percentage of AccountsReceivableNetCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.10.30.30.20.20.30.20.30.20.20.20.20.20.20.2

Furniture And Fixtures Gross

us-gaap:FurnitureAndFixturesGross

us-gaap:FurnitureAndFixturesGross


Furniture
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312015-12-31
Value4040434253353536363636363738393939394011
Percentage of FurnitureAndFixturesGross100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.40.40.40.40.50.40.40.40.50.50.50.50.50.60.60.60.60.60.60.2

Finite Lived Intangible Assets Net

us-gaap:FiniteLivedIntangibleAssetsNet krc:FiniteLivedIntangibleAssetsAndLiabilitiesByMajorClass

us-gaap:FiniteLivedIntangibleAssetsNet

krc:DeferredLeasingCosts


Finite
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302011-12-31
Value196185166146150144147146133126123126141125113115115110109108106979589
Percentage of FiniteLivedIntangibleAssetsNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets2.02.12.12.22.22.32.32.42.22.02.22.22.52.32.12.32.32.22.32.32.32.32.52.6
Percentage of Assets krc:DeferredLeasingCosts0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:LeasesAcquiredInPlace


Finite
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302011-12-31
Value142630355432353538414449534954605764657267715445
Percentage of FiniteLivedIntangibleAssetsNet7.514.218.324.236.122.924.324.629.233.036.138.937.939.848.352.349.658.059.466.762.973.656.850.9
Percentage of Assets0.10.30.40.50.80.50.60.60.70.70.80.90.90.91.01.21.11.31.41.51.51.71.41.3
Percentage of Assets us-gaap:LeasesAcquiredInPlace0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Operating Lease Right Of Use Asset

us-gaap:OperatingLeaseRightOfUseAsset

us-gaap:OperatingLeaseRightOfUseAsset


Operating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312019-01-01
Value14195959595969683828282
Percentage of OperatingLeaseRightOfUseAsset100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets1.40.91.01.01.01.01.11.01.01.10.0

us-gaap:OperatingLeaseRightOfUseAsset dei:LegalEntity

krc:KilroyRealtyL.P.


Operating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312019-01-01
Value14195959595969683828282
Percentage of OperatingLeaseRightOfUseAsset100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets1.40.91.01.01.01.01.11.01.01.10.0
Percentage of Assets krc:KilroyRealtyL.P.1.40.91.01.01.01.01.11.01.01.10.0

us-gaap:OperatingLeaseRightOfUseAsset us-gaap:RealEstateAndAccumulatedDepreciationDescriptionOfProperty

krc:A200West6thStreetAustinTX


Operating
Period End2021-06-23
Value46
Percentage of OperatingLeaseRightOfUseAsset0.0
Percentage of Assets0.0
Percentage of Assets krc:A200West6thStreetAustinTX0.0

Long Term Debt

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

us-gaap:LongTermDebt

krc:KilroyRealtyL.P., us-gaap:SecuredDebt


Long
Period End2020-12-312019-12-312018-12-312017-12-31
Value253258335340
Percentage of LongTermDebt100.0100.0100.0100.0
Percentage of Assets2.52.94.35.0
Percentage of Assets krc:KilroyRealtyL.P. us-gaap:SecuredDebt0.00.00.00.0

us-gaap:LongTermDebt us-gaap:LongtermDebtType

us-gaap:UnsecuredDebt


Long
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-31
Value370033002600200018001900190016001500
Percentage of LongTermDebt1459.11276.1774.9586.90.00.00.00.00.0
Percentage of Assets37.037.133.529.426.832.033.731.332.5
Percentage of Assets us-gaap:UnsecuredDebt0.00.00.00.00.00.00.00.00.0

Minority Interest

us-gaap:MinorityInterest

us-gaap:MinorityInterest


Minority
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value246244247283281285277274271268271270260260259206206206216178969663646059575656565455524746423939333333303128
Percentage of MinorityInterest100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets2.42.42.52.82.92.93.13.23.43.43.53.63.53.73.83.02.93.03.22.81.51.61.11.01.11.01.01.01.11.11.11.11.11.01.01.01.01.01.01.01.01.11.11.4

Lessee Operating Lease Liability Payments Due Year Two

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearTwo

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearTwo


Lessee
Period End2021-06-302021-03-312020-12-312020-09-30
Value7489000.05662000.05642000.05642000.0
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueYearTwo100.0100.0100.0100.0
Percentage of Assets0.10.10.10.1

Lessee Operating Lease Liability Payments Due Year Three

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearThree

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearThree


Lessee
Period End2021-06-302021-03-312020-12-312020-09-30
Value7525000.05662000.05662000.05662000.0
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueYearThree100.0100.0100.0100.0
Percentage of Assets0.10.10.10.1

Lessee Operating Lease Liability Payments Due Year Four

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFour

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFour


Lessee
Period End2021-06-302021-03-312020-12-312020-09-30
Value7561000.05662000.05662000.05662000.0
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueYearFour100.0100.0100.0100.0
Percentage of Assets0.10.10.10.1

Lessee Operating Lease Liability Payments Due Year Five

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFive

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFive


Lessee
Period End2021-06-302021-03-312020-12-312020-09-30
Value7597000.05662000.05662000.05662000.0
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueYearFive100.0100.0100.0100.0
Percentage of Assets0.10.10.10.1

Lessee Operating Lease Liability Payments Due After Year Five

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive


Lessee
Period End2021-06-302021-03-312020-12-312020-09-30
Value440275280280
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive100.0100.0100.0100.0
Percentage of Assets4.22.62.82.8

Operating Lease Liability

us-gaap:OperatingLeaseLiability

us-gaap:OperatingLeaseLiability


Operating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312019-01-01
Value14397979798989887878787
Percentage of OperatingLeaseLiability100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets1.40.91.01.01.01.01.11.01.11.10.0

us-gaap:OperatingLeaseLiability dei:LegalEntity

krc:KilroyRealtyL.P.


Operating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312019-01-01
Value14397979798989887878787
Percentage of OperatingLeaseLiability100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets1.40.91.01.01.01.01.11.01.11.10.0
Percentage of Assets krc:KilroyRealtyL.P.1.40.91.01.01.01.01.11.01.11.10.0

us-gaap:OperatingLeaseLiability us-gaap:RealEstateAndAccumulatedDepreciationDescriptionOfProperty

krc:A200West6thStreetAustinTX


Operating
Period End2021-06-23
Value46
Percentage of OperatingLeaseLiability0.0
Percentage of Assets0.0
Percentage of Assets krc:A200West6thStreetAustinTX0.0

Lessee Operating Lease Liability Payments Due

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDue

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDue


Lessee
Period End2021-06-302021-03-312020-12-312020-09-30
Value481307308310
Percentage of LesseeOperatingLeaseLiabilityPaymentsDue100.0100.0100.0100.0
Percentage of Assets4.63.03.13.1

Lessee Operating Lease Liability Undiscounted Excess Amount

us-gaap:LesseeOperatingLeaseLiabilityUndiscountedExcessAmount

us-gaap:LesseeOperatingLeaseLiabilityUndiscountedExcessAmount


Lessee
Period End2021-06-302021-03-312020-12-312020-09-30
Value337209211212
Percentage of LesseeOperatingLeaseLiabilityUndiscountedExcessAmount100.0100.0100.0100.0
Percentage of Assets3.22.02.12.1

Stockholders Equity

us-gaap:StockholdersEquity

us-gaap:StockholdersEquity


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value5446545850294968497249924293426439153914392938043802368637003689375637593542346333303328317031722852280026662563256625292461246821862185218920191693169012931261127010711086854
Percentage of StockholdersEquity100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets52.252.650.349.851.551.348.249.548.449.750.650.351.552.954.454.053.753.852.854.752.953.653.449.950.248.947.346.748.749.548.248.545.845.947.447.944.042.737.537.538.937.738.641.0

Stockholders Equity Including Portion Attributable To Noncontrolling Interest

us-gaap:StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest

us-gaap:StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312008-12-312007-12-31
Value569357025277525152535277457045394186418342014074406339473960389539623966375936413426342432343237291328592723262026232585251625242238223222352061173317291327129413031102111711331152874883714767
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets54.654.952.852.654.454.251.452.651.753.154.153.955.056.758.257.056.656.756.157.554.455.254.551.051.249.948.447.849.750.649.249.646.946.948.448.945.043.738.538.439.938.839.70.00.00.042.40.00.0

us-gaap:StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest us-gaap:StatementEquityComponents

us-gaap:AccumulatedDistributionsInExcessOfNetIncome


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312008-12-312007-12-31
Value311334-103.133-122.936-113.223-76.182-58.467-78.707-70.345-62.69-48.053-161.654-149.368-130.514-122.685-108.667-132.799-120.207-107.997786267-70.262-62.85-131.569-154.355-162.964-159.799-145.851-143.636-210.896-201.048-177.484-157.211-129.535-288.765-259.495-234.199-277.45-296.476-285.916-264.848-247.252-230.215-211.555-191.19-180.722-137.052-90.562
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest5.55.9-2.0-2.3-2.2-1.4-1.3-1.7-1.7-1.5-1.1-4.0-3.7-3.3-3.1-2.8-3.4-3.0-2.92.11.82.0-2.2-1.9-4.5-5.4-6.0-6.1-5.6-5.6-8.4-8.0-7.9-7.0-5.8-14.0-15.0-13.5-20.9-22.9-21.9-24.0-22.1-20.3-18.4-21.9-20.4-19.2-11.8
Percentage of Assets3.03.2-1.0-1.2-1.2-0.8-0.7-0.9-0.9-0.8-0.6-2.1-2.0-1.9-1.8-1.6-1.9-1.7-1.61.21.01.1-1.2-1.0-2.3-2.7-2.9-2.9-2.8-2.8-4.1-4.0-3.7-3.3-2.8-6.8-6.7-5.9-8.0-8.8-8.8-9.3-8.80.00.00.0-8.70.00.0
Percentage of Assets us-gaap:AccumulatedDistributionsInExcessOfNetIncome0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:AdditionalPaidInCapital


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312008-12-312007-12-31
Value513451225131508950845067435043423984397639763965395138163822379737923782345731913074306630473042279127612635253025192479247824762170214921262114185618271448143514331214121112091208914913700695
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest90.289.897.296.996.896.095.295.795.295.194.797.397.296.796.597.595.795.492.087.689.789.694.294.095.896.696.896.696.095.998.598.197.096.395.1102.6107.1105.7109.2110.9110.0110.2108.4106.7104.9104.7103.497.990.6
Percentage of Assets49.249.351.351.052.652.148.950.449.250.451.252.453.554.856.255.554.254.151.650.448.849.451.347.949.148.246.846.147.848.548.548.745.545.246.150.248.346.242.042.643.942.743.00.00.00.043.80.00.0
Percentage of Assets us-gaap:AdditionalPaidInCapital0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:CommonStock


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312008-12-312007-12-31
Value1.1651.1651.161.1521.1521.1511.061.061.011.011.0071.0071.0060.9880.9860.9840.9840.9830.9320.9230.9230.9220.9230.9220.8840.880.8630.8340.8290.8220.8220.8210.7570.7530.7490.7470.6890.6830.5880.5850.5850.5240.5230.5230.5230.4310.4310.3310.328
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of Assets us-gaap:CommonStock0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:NoncontrollingInterest


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312008-12-312007-12-31
Value2462442472832812852772742712682712702602602592062062062161789696636460595756565654555247464239393333333031313228282940
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest4.34.34.75.45.45.46.16.16.56.46.56.66.46.66.65.35.25.25.84.92.82.82.02.02.12.12.12.22.22.22.22.22.32.12.12.02.32.32.52.62.62.82.82.82.83.33.34.25.3
Percentage of Assets2.42.42.52.82.92.93.13.23.43.43.53.63.53.73.83.02.93.03.22.81.51.61.11.01.11.01.01.01.11.11.11.11.11.01.01.01.01.01.01.01.01.11.10.00.00.01.40.00.0
Percentage of Assets us-gaap:NoncontrollingInterest0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:Parent


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312008-12-312007-12-31
Value544654585029496849724992429342643915391439293804380236863700368937563759354234633330332831703172285228002666256325662529246124682186218521892019169316901293126112701071108611011119845854684726
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest95.795.795.394.694.694.693.993.993.593.693.593.493.693.493.494.794.894.894.295.197.297.298.098.097.997.997.997.897.897.897.897.897.797.997.998.097.797.797.597.497.497.297.297.297.296.796.795.894.7
Percentage of Assets52.252.650.349.851.551.348.249.548.449.750.650.351.552.954.454.053.753.852.854.752.953.653.449.950.248.947.346.748.749.548.248.545.845.947.447.944.042.737.537.538.937.738.60.00.00.041.00.00.0
Percentage of Assets us-gaap:Parent0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Common Stock Value

us-gaap:CommonStockValue

us-gaap:CommonStockValue


Common
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value1.1651.1651.161.1521.1521.1511.061.061.011.011.0071.0071.0060.9880.9860.9840.9840.9830.9320.9230.9230.9220.9230.9220.8840.880.8630.8340.8290.8220.8220.8210.7570.7530.7490.7470.6890.6830.5880.5850.5850.5240.5230.431
Percentage of CommonStockValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Additional Paid In Capital

us-gaap:AdditionalPaidInCapital

us-gaap:AdditionalPaidInCapital


Additional
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value5134512251315089508450674350434239843976397639653951381638223797379237823457319130743066304730422791276126352530251924792478247621702149212621141856182714481435143312141211913
Percentage of AdditionalPaidInCapital100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets49.249.351.351.052.652.148.950.449.250.451.252.453.554.856.255.554.254.151.650.448.849.451.347.949.148.246.846.147.848.548.548.745.545.246.150.248.346.242.042.643.942.743.043.8

Retained Earnings Accumulated Deficit

us-gaap:RetainedEarningsAccumulatedDeficit

us-gaap:RetainedEarningsAccumulatedDeficit


Retained
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-31
Value311334-103.133-122.936-113.223-76.182-58.467-78.707-70.345-62.69-48.053-161.654-149.368-130.514-122.685-108.667-132.799-120.207-107.997786267-70.262
Percentage of RetainedEarningsAccumulatedDeficit100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets3.03.2-1.0-1.2-1.2-0.8-0.7-0.9-0.9-0.8-0.6-2.1-2.0-1.9-1.8-1.6-1.9-1.7-1.61.21.01.1-1.2

Minority Interest

us-gaap:MinorityInterest

us-gaap:MinorityInterest


Minority
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value246244247283281285277274271268271270260260259206206206216178969663646059575656565455524746423939333333303128
Percentage of MinorityInterest100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets2.42.42.52.82.92.93.13.23.43.43.53.63.53.73.83.02.93.03.22.81.51.61.11.01.11.01.01.01.11.11.11.11.11.01.01.01.01.01.01.01.01.11.11.4

Stock Issued During Period Value New Issues

us-gaap:StockIssuedDuringPeriodValueNewIssues

us-gaap:StockIssuedDuringPeriodValueNewIssues


Stock
Period End2020-09-302020-06-302020-03-312019-09-302018-12-312018-09-302018-06-302017-12-312017-09-302017-06-302017-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302010-12-312010-09-30
Value-0.074-0.045721353-0.0516.59712417-0.02-0.017308-0.111249241131010.00.030719239.73125326382120.00.00.0
Percentage of StockIssuedDuringPeriodValueNewIssues100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.0100.0100.0100.0100.0100.0100.0100.0100.00.00.00.0
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:StockIssuedDuringPeriodValueNewIssues us-gaap:StatementEquityComponents

us-gaap:AdditionalPaidInCapital


Stock
Period End2020-09-302020-06-302020-03-312019-09-302018-12-312018-09-302018-06-302017-12-312017-09-302017-06-302017-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302010-12-312010-09-30
Value-0.074-0.045721353-0.0516.59612417-0.02-0.017308-0.111249241131010.00.030719239.72925326381120.00.00.0
Percentage of StockIssuedDuringPeriodValueNewIssues100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.0100.0100.0100.0100.0100.0100.0100.0100.00.00.00.0
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of Assets us-gaap:AdditionalPaidInCapital0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:Parent


Stock
Period End2020-09-302020-06-302020-03-312019-09-302018-12-312018-09-302018-06-302017-12-312017-09-302017-06-302017-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302010-12-312010-09-30
Value-0.074-0.045721353-0.0516.59712417-0.02-0.017308-0.111249241131010.00.030719239.73125326382120.00.00.0
Percentage of StockIssuedDuringPeriodValueNewIssues100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.0100.0100.0100.0100.0100.0100.0100.0100.00.00.00.0
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of Assets us-gaap:Parent0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

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

us-gaap:AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue

us-gaap:AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue


Adjustments
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value119.6047.794138.6536.8088.7328.817118.081115.0947.3066.3856.4596.1697.3216.7656.6275.9115.2484.374.9494.3024.1263.9614.1512.2332.4672.3852.2892.4222.3552.3552.3581.4691.3871.3881.3931.421.6371.6891.6411.72
Percentage of AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue dei:LegalEntity

krc:KilroyRealtyL.P.


Adjustments
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value119.6047.794138.6536.8088.7328.817118.081115.0947.3066.385
Percentage of AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of Assets krc:KilroyRealtyL.P.0.00.00.00.00.00.00.00.00.00.00.00.00.00.0

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

krc:KilroyRealtyL.P., krc:PartnersCapitalCommonUnit


Adjustments
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value119.6047.794138.6536.8088.7328.817118.081115.0947.3066.385
Percentage of AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of Assets krc:KilroyRealtyL.P. krc:PartnersCapitalCommonUnit0.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue us-gaap:StatementEquityComponents

us-gaap:AdditionalPaidInCapital


Adjustments
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value119.6047.794138.6536.8088.7328.817118.081115.0947.3066.3856.4596.1697.3216.7656.6275.9115.2484.374.9494.3024.1263.9614.1512.2332.4672.3852.2892.4222.3552.3552.3581.4691.3871.3881.3931.421.6371.6891.6411.72
Percentage of AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of Assets us-gaap:AdditionalPaidInCapital0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:Parent


Adjustments
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value119.6047.794138.6536.8088.7328.817118.081115.0947.3066.3856.4596.1697.3216.7656.6275.9115.2484.374.9494.3024.1263.9614.1512.2332.4672.3852.2892.4222.3552.3552.3581.4691.3871.3881.3931.421.6371.6891.6411.72
Percentage of AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of Assets us-gaap:Parent0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Minority Interest Decrease From Distributions To Noncontrolling Interest Holders

us-gaap:MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders

us-gaap:MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders


Minority
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-30
Value4.692111.4584.2812.6173.0411.4876.3094.7970.5414.2882.1774.3083.5833.9234.7282.4760.858
Percentage of MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders dei:LegalEntity

krc:KilroyRealtyL.P.


Minority
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value4.692111.4584.2812.6173.0411.4876.3094.7970.5414.2882.1774.3083.583
Percentage of MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of Assets krc:KilroyRealtyL.P.0.00.00.00.00.00.00.00.00.00.00.00.00.00.0

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

krc:KilroyRealtyL.P., us-gaap:NoncontrollingInterest


Minority
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value4.692111.4584.2812.617-3.0411.4876.3094.7970.5414.2882.1774.3083.583
Percentage of MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders100.0100.0100.0100.0100.0-100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of Assets krc:KilroyRealtyL.P. us-gaap:NoncontrollingInterest0.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders us-gaap:StatementEquityComponents

us-gaap:NoncontrollingInterest


Minority
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-30
Value4.692111.4584.2812.6173.0411.4876.3094.7970.5414.2882.1774.3083.5833.9234.7282.4760.858
Percentage of MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of Assets us-gaap:NoncontrollingInterest0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Net Cash Provided By Used In Operating Activities

us-gaap:NetCashProvidedByUsedInOperatingActivities

us-gaap:NetCashProvidedByUsedInOperatingActivities


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value721449113910112285135659992128949470988296921145978698561544790614554795056336829482457124324372333
Percentage of NetCashProvidedByUsedInOperatingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax4789.014560.839.911741.49473.54561.838.74236.32300.749.648.668.850.651.539.754.145.453.70.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:NetCashProvidedByUsedInOperatingActivities dei:LegalEntity

krc:KilroyRealtyL.P.


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value72144911391011228513565999212894947098
Percentage of NetCashProvidedByUsedInOperatingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax4789.014560.839.911741.49473.54561.838.74236.32300.749.648.668.850.651.539.754.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax krc:KilroyRealtyL.P.4789.014560.88057.211741.49473.54561.82750.64236.32300.75483.00.00.00.00.00.00.0

Net Cash Provided By Used In Investing Activities

us-gaap:NetCashProvidedByUsedInInvestingActivities

us-gaap:NetCashProvidedByUsedInInvestingActivities


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value-716.948812-66.427-101.36-162.929-211.412-501.095-310.148-203.504-213.532-3.515-141.054-416.691-247.655-178.3935-129.63-86.388-511.228180-177.798-126.733-126.086-51.646-7.711-77.309-312.478-67.094-219.14297-224.856-261.042-64.06943-165.183-239.731-204.508-97.084-81.068-117.696-374.382-61.137-267.119-20.547-376.644-37.464
Percentage of NetCashProvidedByUsedInInvestingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-47480.082045.5-29.0-8503.4-15269.8-7844.6-227.5-9680.0-7108.1-106.1-1.8-75.6-222.7-135.5-100.519.4-71.8-48.20.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:NetCashProvidedByUsedInInvestingActivities dei:LegalEntity

krc:KilroyRealtyL.P.


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value-716.948812-66.427-101.36-162.929-211.412-501.095-310.148-203.504-213.532-3.515-141.054-416.691-247.655-178.3935
Percentage of NetCashProvidedByUsedInInvestingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-47480.082045.5-29.0-8503.4-15269.8-7844.6-227.5-9680.0-7108.1-106.1-1.8-75.6-222.7-135.5-100.519.4
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax krc:KilroyRealtyL.P.-47480.082045.5-5842.3-8503.4-15269.8-7844.6-16190.5-9680.0-7108.1-11732.50.00.00.00.00.00.0

Net Cash Provided By Used In Financing Activities

us-gaap:NetCashProvidedByUsedInFinancingActivities

us-gaap:NetCashProvidedByUsedInFinancingActivities


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value-72.18-92.954-67.362205-95.275790188419140-1.299-4.79648319139-69.512-285.067-42.136225361-71.10910630-454.742505-76.177488715286-82.2028.817271-14.28919132169-181.6441746503809.208248-38.1083714.749
Percentage of NetCashProvidedByUsedInFinancingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-4780.1-9389.3-29.417231.5-8929.229334.485.513096.84902.4-0.6-2.525.9170.976.5-39.1-157.0-23.3125.70.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:NetCashProvidedByUsedInFinancingActivities dei:LegalEntity

krc:KilroyRealtyL.P.


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value-72.18-92.954-67.362205-95.275790188419140-1.299-4.79648319139-69.512-285.067
Percentage of NetCashProvidedByUsedInFinancingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-4780.1-9389.3-29.417231.5-8929.229334.485.513096.84902.4-0.6-2.525.9170.976.5-39.1-157.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax krc:KilroyRealtyL.P.-4780.1-9389.3-5924.517231.5-8929.229334.46086.813096.84902.4-71.40.00.00.00.00.00.0

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

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect


Cash
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value-716.814863-42.179243-157.122702-227.5762452.722-115.0418435-2.252-13.729-177.432-151.635-89.725235
Percentage of CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-47471.187217.0-18.420469.5-14725.626051.6-103.37653.195.1-57.244.319.1-1.2-7.5-99.9-83.5-49.7131.3

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect dei:LegalEntity

krc:KilroyRealtyL.P.


Cash
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value-716.814863-42.179243-157.122702-227.5762452.722-115.0418435-2.252-13.729-177.432-151.635
Percentage of CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-47471.187217.0-18.420469.5-14725.626051.6-103.37653.195.1-57.244.319.1-1.2-7.5-99.9-83.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax krc:KilroyRealtyL.P.-47471.187217.0-3709.720469.5-14725.626051.6-7353.07653.195.1-6320.90.00.00.00.00.00.0

Depreciation Depletion And Amortization

us-gaap:DepreciationDepletionAndAmortization

us-gaap:DepreciationDepletionAndAmortization


Depreciation
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value72747170757268676764636162615961615955555249504850505349504850504850454540363835312928292320
Percentage of DepreciationDepletionAndAmortization100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DepreciationDepletionAndAmortization dei:LegalEntity

krc:KilroyRealtyL.P.


Depreciation
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value72747170757268676764636162615961
Percentage of DepreciationDepletionAndAmortization100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Net Cash Provided By Used In Operating Activities

us-gaap:NetCashProvidedByUsedInOperatingActivities

us-gaap:NetCashProvidedByUsedInOperatingActivities


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value721449113910112285135659992128949470988296921145978698561544790614554795056336829482457124324372333
Percentage of NetCashProvidedByUsedInOperatingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax4789.014560.839.911741.49473.54561.838.74236.32300.749.648.668.850.651.539.754.145.453.70.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:NetCashProvidedByUsedInOperatingActivities dei:LegalEntity

krc:KilroyRealtyL.P.


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value72144911391011228513565999212894947098
Percentage of NetCashProvidedByUsedInOperatingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax4789.014560.839.911741.49473.54561.838.74236.32300.749.648.668.850.651.539.754.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax krc:KilroyRealtyL.P.4789.014560.88057.211741.49473.54561.82750.64236.32300.75483.00.00.00.00.00.00.0

Net Income Loss

us-gaap:NetIncomeLoss

us-gaap:NetIncomeLoss


Net
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value78491939724342361603427362871313332533217428104574330183099228.8969.9462.411892.5892.2977643133.4824.8335.3343.6732.0168.685
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 RevenueFromContractWithCustomerExcludingAssessedTax34.34113.11838.61477.432.91368.51473.818.384.018.414.719.816.139.217.418.70.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:NetIncomeLoss dei:LegalEntity

krc:KilroyRealtyL.P.


Net
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value794919407344423716334283629723134
Percentage of NetIncomeLoss101.3101.4101.1101.4101.7101.7101.7101.6101.9101.7101.7101.8101.7101.8101.7101.6
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax34.74171.81859.21498.733.51391.71498.518.685.618.815.020.216.339.917.719.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax krc:KilroyRealtyL.P.7005.64171.81859.21498.72382.61391.71498.52060.90.00.00.00.00.00.00.00.0

Profit Loss

us-gaap:ProfitLoss

us-gaap:ProfitLoss


Profit
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value42507835424457748474116638314032753537355633178291065844311931101239.027102.3881932.5222.2777844143.4724.8675.3843.6691.9568.877
Percentage of ProfitLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax2839.751253.636.44536.22282.31685.335.41507.41649.120.887.420.517.022.418.341.619.520.80.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:ProfitLoss dei:LegalEntity

krc:KilroyRealtyL.P.


Profit
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value42507835424457748474116638314032753537
Percentage of ProfitLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax2839.751253.636.44536.22282.31685.335.41507.41649.120.887.420.517.022.418.341.619.520.8
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax krc:KilroyRealtyL.P.2839.751253.67339.74536.22282.31685.32517.71507.41649.12296.40.00.00.00.00.00.00.00.0

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

krc:KilroyRealtyL.P., krc:PartnersCapitalCommonUnit


Profit
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value365024919404442371633428362972
Percentage of ProfitLoss84.499.092.081.588.992.390.989.797.991.388.290.089.295.9
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax2396.950759.34171.81859.21498.71391.71498.518.685.618.815.020.216.339.9
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax krc:KilroyRealtyL.P. krc:PartnersCapitalCommonUnit0.00.00.00.00.00.00.00.00.00.00.00.00.00.0

krc:KilroyRealtyL.P., us-gaap:NoncontrollingInterest


Profit
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value6.6874.8944.3434.5145.0293.7094.3144.2863.5813.3173.744.0783.5273.086
Percentage of ProfitLoss15.61.08.018.511.17.79.110.32.18.711.810.010.84.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax442.8494.3364.3423.1186.6115.8150.72.11.91.82.02.22.01.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax krc:KilroyRealtyL.P. us-gaap:NoncontrollingInterest0.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:ProfitLoss us-gaap:StatementEquityComponents

us-gaap:AccumulatedDistributionsInExcessOfNetIncome


Profit
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value354974919394342361603427362871313332533217428104574330183099228.8969.9462.411892.592.2977643133.4824.8335.3343.6732.0168.685
Percentage of ProfitLoss83.698.190.780.687.790.889.488.396.089.886.888.587.794.289.189.992.495.696.997.997.798.298.198.198.298.398.198.098.298.598.4100.997.7102.7100.997.797.497.9100.399.399.1100.1103.197.8
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax2373.450265.84113.11838.61477.41368.51473.818.384.018.414.719.816.139.217.418.70.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:AccumulatedDistributionsInExcessOfNetIncome0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:NoncontrollingInterest


Profit
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value7.0419.785.0434.7345.6014.4525.0214.8916.673.914.2064.7254.0114.3783.8583.7562.682.481.0453.8050.6731.9451.090.8150.5780.3210.6032.0870.4190.1310.157-0.0224.479-0.067-0.021.7951.1540.296-0.010.0340.05-0.004-0.060.192
Percentage of ProfitLoss16.41.99.319.412.39.210.611.74.010.213.211.512.35.810.910.17.64.43.12.12.31.81.91.91.81.71.92.01.81.51.6-0.92.3-2.7-0.92.32.62.1-0.30.70.9-0.1-3.12.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax466.3987.9423.1443.7207.8139.0175.42.43.52.12.22.62.32.42.12.10.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:NoncontrollingInterest0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:Parent


Profit
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value354974919394342361603427362871313332533217428104574330183099228.8969.9462.411892.592.2977643133.4824.8335.3343.6732.0168.685
Percentage of ProfitLoss83.698.190.780.687.790.889.488.396.089.886.888.587.794.289.189.992.495.696.997.997.798.298.198.198.298.398.198.098.298.598.4100.997.7102.7100.997.797.497.9100.399.399.1100.1103.197.8
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax2373.450265.84113.11838.61477.41368.51473.818.384.018.414.719.816.139.217.418.70.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:Parent0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Share Based Compensation

us-gaap:ShareBasedCompensation

us-gaap:ShareBasedCompensation


Share
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value9.5387.8775.9555.979116.7836.8076.1186.8717.2119.0316.6348.6693.5985.4294.6514.8324.1345.8015.2295.3314.7034.2653.6224.0793.5713.2783.3722.9432.5022.1622.1742.0462.2342.1262.1252.1321.2871.1171.1261.1331.1060.7031.8091.8131.706
Percentage of ShareBasedCompensation100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ShareBasedCompensation dei:LegalEntity

krc:KilroyRealtyL.P.


Share
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value9.5387.8775.9555.979116.7836.8076.1186.8717.2119.0316.6348.6693.5985.4294.651
Percentage of ShareBasedCompensation100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Net Cash Provided By Used In Investing Activities

us-gaap:NetCashProvidedByUsedInInvestingActivities

us-gaap:NetCashProvidedByUsedInInvestingActivities


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value-716.948812-66.427-101.36-162.929-211.412-501.095-310.148-203.504-213.532-3.515-141.054-416.691-247.655-178.3935-129.63-86.388-511.228180-177.798-126.733-126.086-51.646-7.711-77.309-312.478-67.094-219.14297-224.856-261.042-64.06943-165.183-239.731-204.508-97.084-81.068-117.696-374.382-61.137-267.119-20.547-376.644-37.464
Percentage of NetCashProvidedByUsedInInvestingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-47480.082045.5-29.0-8503.4-15269.8-7844.6-227.5-9680.0-7108.1-106.1-1.8-75.6-222.7-135.5-100.519.4-71.8-48.20.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:NetCashProvidedByUsedInInvestingActivities dei:LegalEntity

krc:KilroyRealtyL.P.


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value-716.948812-66.427-101.36-162.929-211.412-501.095-310.148-203.504-213.532-3.515-141.054-416.691-247.655-178.3935
Percentage of NetCashProvidedByUsedInInvestingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-47480.082045.5-29.0-8503.4-15269.8-7844.6-227.5-9680.0-7108.1-106.1-1.8-75.6-222.7-135.5-100.519.4
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax krc:KilroyRealtyL.P.-47480.082045.5-5842.3-8503.4-15269.8-7844.6-16190.5-9680.0-7108.1-11732.50.00.00.00.00.00.0

Net Cash Provided By Used In Financing Activities

us-gaap:NetCashProvidedByUsedInFinancingActivities

us-gaap:NetCashProvidedByUsedInFinancingActivities


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value-72.18-92.954-67.362205-95.275790188419140-1.299-4.79648319139-69.512-285.067-42.136225361-71.10910630-454.742505-76.177488715286-82.2028.817271-14.28919132169-181.6441746503809.208248-38.1083714.749
Percentage of NetCashProvidedByUsedInFinancingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-4780.1-9389.3-29.417231.5-8929.229334.485.513096.84902.4-0.6-2.525.9170.976.5-39.1-157.0-23.3125.70.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:NetCashProvidedByUsedInFinancingActivities dei:LegalEntity

krc:KilroyRealtyL.P.


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value-72.18-92.954-67.362205-95.275790188419140-1.299-4.79648319139-69.512-285.067
Percentage of NetCashProvidedByUsedInFinancingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-4780.1-9389.3-29.417231.5-8929.229334.485.513096.84902.4-0.6-2.525.9170.976.5-39.1-157.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax krc:KilroyRealtyL.P.-4780.1-9389.3-5924.517231.5-8929.229334.46086.813096.84902.4-71.40.00.00.00.00.00.0

Payments Of Dividends

us-gaap:PaymentsOfDividends us-gaap:SubsequentEventType

us-gaap:PaymentsOfDividends

us-gaap:SubsequentEvent


Payments
Period End2021-07-142021-04-142021-01-152020-10-14
Value59595959
Percentage of PaymentsOfDividends100.0100.0100.0100.0

Payments Of Dividends Common Stock

us-gaap:PaymentsOfDividendsCommonStock

us-gaap:PaymentsOfDividendsCommonStock


Payments
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-01-132017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value58585856565252494646464642434242373621735353232323131302929292929282726262424212121181818181515
Percentage of PaymentsOfDividendsCommonStock100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:PaymentsOfDividendsCommonStock dei:LegalEntity

krc:KilroyRealtyL.P.


Payments
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value58585856565252494646464642434242
Percentage of PaymentsOfDividendsCommonStock100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

krc:AnnualGroundLeaseRentalObligationsMaximum

krc:AnnualGroundLeaseRentalObligationsMaximum


Annual
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value01000000.00001000000.00001000000.0
Percentage of AnnualGroundLeaseRentalObligationsMaximum0.0100.00.00.00.0100.00.00.00.0100.0

krc:AverageOccupancyPercentage us-gaap:PropertyPlantAndEquipmentByType

krc:AverageOccupancyPercentage

krc:StabilizedResidentialProperties


Average
Period End2021-06-302021-03-31
Value1.569.1
Percentage of AverageOccupancyPercentage100.0100.0

krc:CommonStockholdersAndUnitholdersDividendsAndDistributionsDeclaredButNotPaid

krc:CommonStockholdersAndUnitholdersDividendsAndDistributionsDeclaredButNotPaid


Common
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value-0.017590.0151.816-0.02570.0142.4053.124470.1480.0633.836430.1240.0195.129381840.0162.41633-0.0171.3230.138310.9850.1680.184290.0142.2410.126270.0812.0560.202240.1240.02.114180.00.0183.22115
Percentage of CommonStockholdersAndUnitholdersDividendsAndDistributionsDeclaredButNotPaid100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.00.0100.0100.0100.0

krc:CommonStockholdersAndUnitholdersDividendsAndDistributionsDeclaredButNotPaid dei:LegalEntity

krc:KilroyRealtyL.P.


Common
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value-0.017590.0151.816-0.02570.0142.4053.124470.1480.0633.836430.1240.019
Percentage of CommonStockholdersAndUnitholdersDividendsAndDistributionsDeclaredButNotPaid100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

krc:DepreciationNonRealEstateAssets

krc:DepreciationNonRealEstateAssets


Depreciation
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value1552000.01501000.01478000.01441000.04104000.01932000.01435000.01245000.01241000.01164000.0
Percentage of DepreciationNonRealEstateAssets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

krc:DepreciationNonRealEstateAssets dei:LegalEntity

krc:KilroyRealtyL.P.


Depreciation
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value1552000.01501000.01478000.01441000.04104000.01932000.01435000.01245000.01241000.01164000.0
Percentage of DepreciationNonRealEstateAssets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

krc:DispositionsSalesPrice us-gaap:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations, us-gaap:PropertyPlantAndEquipmentByType

krc:DispositionsSalesPrice

krc:A1800OwensStreetSanFranciscoCA, us-gaap:Building


Dispositions
Period End2021-03-31
Value1080
Percentage of DispositionsSalesPrice100.0

krc:GroundLeaseMinimumRentIncreaseFiveYearsPercentageofAnnualPercentageRent

krc:GroundLeaseMinimumRentIncreaseFiveYearsPercentageofAnnualPercentageRent


Ground
Period End2021-06-302021-03-31
Value05.0
Percentage of GroundLeaseMinimumRentIncreaseFiveYearsPercentageofAnnualPercentageRent0.0100.0

krc:InterestIncomeAndOtherNetInvestmentGainLoss

krc:InterestIncomeAndOtherNetInvestmentGainLoss


Interest
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-30
Value1337000.01373000.01845000.01869000.02838000.0-3128000.01436000.0761000.0616000.01828000.0-1706000.0342000.0771000.034000.01874000.01526000.01038000.01065000.0644000.0538000.0311000.0271000.066000.0-694000.0511000.0
Percentage of InterestIncomeAndOtherNetInvestmentGainLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

krc:InterestIncomeAndOtherNetInvestmentGainLoss dei:LegalEntity

krc:KilroyRealtyL.P.


Interest
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value1337000.01373000.01845000.01869000.02838000.0-3128000.01436000.0761000.0616000.01828000.0-1706000.0342000.0771000.034000.01874000.01526000.01038000.0
Percentage of InterestIncomeAndOtherNetInvestmentGainLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

krc:NetIncomeLossAttributabletoNoncontrollingInterestinConsolidatedSubsidiary

krc:NetIncomeLossAttributabletoNoncontrollingInterestinConsolidatedSubsidiary


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-31
Value6.6874.8943.7984.2584.3674.8964.0793.64.154.1913.4853.2193.643.9743.4212.9843.2423.1331.9371.0270.2160.195-0.1840.00.00.0
Percentage of NetIncomeLossAttributabletoNoncontrollingInterestinConsolidatedSubsidiary100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.00.0

krc:NetIncomeLossAvailabletoCommonStockholdersBasicandDiluted

krc:NetIncomeLossAvailabletoCommonStockholdersBasicandDiluted


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-30
Value3549778481939714341361593327352866292526502917024101533927152696185.1346.209-1.32128-3.161
Percentage of NetIncomeLossAvailabletoCommonStockholdersBasicandDiluted100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

krc:NetIncomeLossAvailabletoCommonStockholdersBasicandDiluted dei:LegalEntity

krc:KilroyRealtyL.P.


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
Value355027949193973444236162342736286729
Percentage of NetIncomeLossAvailabletoCommonStockholdersBasicandDiluted101.0101.0101.3101.4101.2101.5101.7101.7101.7101.7101.9101.7101.7101.8101.7102.0101.8

krc:NoncashAmortizationOfDeferredRevenueRelatedToTenantFundedTenantImprovements

krc:NoncashAmortizationOfDeferredRevenueRelatedToTenantFundedTenantImprovements


Noncash
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value4.7114.2044.4334.3214.3734.424.2436.7664.3643.8174.7494.8114.5884.2814.3734.1514.5483.6953.5443.63.2122.8883.3813.6533.2913.0133.2842.6782.6642.3533.1282.6262.5172.4422.2852.3862.2042.26116-2.337-2.342-2.326-2.581-2.333-2.423-2.352
Percentage of NoncashAmortizationOfDeferredRevenueRelatedToTenantFundedTenantImprovements100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

krc:NoncashAmortizationOfDeferredRevenueRelatedToTenantFundedTenantImprovements dei:LegalEntity

krc:KilroyRealtyL.P.


Noncash
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
Value4.7114.2044.4334.3214.3734.424.2436.7664.3643.8174.7494.8114.5884.2814.3734.151
Percentage of NoncashAmortizationOfDeferredRevenueRelatedToTenantFundedTenantImprovements100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

krc:OperatingLeaseIncomeAdjustments

krc:OperatingLeaseIncomeAdjustments


Operating
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-31
Value288000.0-1035000.0-1823000.0-5894000.0-6487000.0-143000.0-217000.02864000.0
Percentage of OperatingLeaseIncomeAdjustments100.0100.0100.0100.0100.0100.0100.0100.0

krc:OperatingLeaseIncomeAdjustmentsTransitioningTenantstoCashBasis

krc:OperatingLeaseIncomeAdjustmentsTransitioningTenantstoCashBasis


Operating
Period End2021-03-312020-09-302020-06-302020-03-31
Value-1.0-1.85.9-6.5
Percentage of OperatingLeaseIncomeAdjustmentsTransitioningTenantstoCashBasis100.0100.0100.0100.0

krc:OperatingLeaseRightofUseAssetAmortization

krc:OperatingLeaseRightofUseAssetAmortization


Operating
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-31
Value213000.0211000.0207000.0205000.0203000.0162000.0147000.0144000.0
Percentage of OperatingLeaseRightofUseAssetAmortization100.0100.0100.0100.0100.0100.0100.0100.0

krc:OperatingLeaseRightofUseAssetAmortization dei:LegalEntity

krc:KilroyRealtyL.P.


Operating
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-31
Value213000.0211000.0207000.0205000.0203000.0162000.0147000.0144000.0
Percentage of OperatingLeaseRightofUseAssetAmortization100.0100.0100.0100.0100.0100.0100.0100.0

krc:ProvisionforDoubtfulAccountsIncludingTenantsLeaseAgreement

krc:ProvisionforDoubtfulAccountsIncludingTenantsLeaseAgreement


Provisionfor
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value-0.2891.0354.7921.8245.8946.4870.252-0.5940.452-3.543-1.0291.3385.641-0.265
Percentage of ProvisionforDoubtfulAccountsIncludingTenantsLeaseAgreement100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

krc:ProvisionforDoubtfulAccountsIncludingTenantsLeaseAgreement dei:LegalEntity

krc:KilroyRealtyL.P.


Provisionfor
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value-0.2891.0354.7921.8245.8946.4870.252-0.5940.452-3.543-1.0291.3385.641-0.265
Percentage of ProvisionforDoubtfulAccountsIncludingTenantsLeaseAgreement100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

krc:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodGrantDateFairValue us-gaap:AwardType

krc:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodGrantDateFairValue

krc:A2021PerformanceBasedRSUs


Share
Period End2021-02-18
Value10
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodGrantDateFairValue100.0

krc:TimeBasedRestrictedStockUnitsRSUsGrant


Share
Period End2021-02-282020-01-31
Value9.19.0
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodGrantDateFairValue0.00.0

krc:TenantImprovementsFundedDirectlyByTenantsToThirdParties

krc:TenantImprovementsFundedDirectlyByTenantsToThirdParties


Tenant
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value1.6952.572.4741.9085.1292.0810.0143.2374.3352.6826.7572.62.5972.0144.9531.141.8057.4161.2476.090.049100.893-0.092120.231197.032114.471.883-1.3235.6471.4261.4166.4659.7430.0950.2510.010.2272.82.2380.5741.2890.657
Percentage of TenantImprovementsFundedDirectlyByTenantsToThirdParties100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

krc:TenantImprovementsFundedDirectlyByTenantsToThirdParties dei:LegalEntity

krc:KilroyRealtyL.P.


Tenant
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
Value1.6952.572.4741.9085.1292.0810.0143.2374.3352.6826.7572.62.5972.0144.9531.14
Percentage of TenantImprovementsFundedDirectlyByTenantsToThirdParties100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AdjustmentsToAdditionalPaidInCapitalOther us-gaap:StatementEquityComponents

us-gaap:AdjustmentsToAdditionalPaidInCapitalOther

us-gaap:AdditionalPaidInCapital


Adjustments
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-30
Value-0.1020.256-0.033-0.181-6.094-3.059-0.160.279-0.241-0.212-1.3590.335-0.331-0.103-0.132-2.936-5.849-3.3080.02118-0.072-2.657-0.394-1.496-0.4960.065-0.031-3.964-0.089-1.893-0.2621.752-0.372-4.578-6.6780.0463.2150.008-0.059-9.65
Percentage of AdjustmentsToAdditionalPaidInCapitalOther100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:NoncontrollingInterest


Adjustments
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-30
Value0.102-0.2560.0330.1816.0943.0590.16-0.2790.2410.2121.359-0.3350.3310.1030.1322.9365.8493.308-0.021-18.1090.0722.6570.3941.4960.496-0.0650.0313.9640.0891.8930.262-1.7520.3724.5786.678-0.046-3.215-0.0080.0599.65
Percentage of AdjustmentsToAdditionalPaidInCapitalOther-100.0-100.0-100.0-100.0-100.0-100.0-100.0-100.0-100.0-100.0-100.0-100.0-100.0-100.0-100.0-100.0-100.0-100.0-100.0-100.0-100.0-100.0-100.0-100.0-100.0-100.0-100.0-100.0-100.0-100.0-100.0-100.0-100.0-100.0-100.0-100.0-100.0-100.0-100.0-100.0

us-gaap:Parent


Adjustments
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-30
Value-0.1020.256-0.033-0.181-6.094-3.059-0.160.279-0.241-0.212-1.3590.335-0.331-0.103-0.132-2.936-5.849-3.3080.02118-0.072-2.657-0.394-1.496-0.4960.065-0.031-3.964-0.089-1.893-0.2621.752-0.372-4.578-6.6780.0463.2150.008-0.059-9.65
Percentage of AdjustmentsToAdditionalPaidInCapitalOther100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AmortizationOfAboveAndBelowMarketLeases

us-gaap:AmortizationOfAboveAndBelowMarketLeases


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
Value-1013000.0-1181000.0-1334000.0-1769000.0-1914000.0-2586000.0-2965000.0-1826000.0-2321000.0-2094000.0-2101000.0-2166000.0-2938000.0-2543000.0-2502000.0-2423000.0-1191000.0-2412000.0-2038000.0-1885000.0-1640000.0-1603000.0-1680000.0-1740000.0-3101000.0-1928000.0-2112000.0-1766000.0-2716000.0-1734000.0-1762000.0-1938000.0-2030000.0-2047000.0-2083000.0-2027000.0-2064000.0-525000.0-463000.0121000.0
Percentage of AmortizationOfAboveAndBelowMarketLeases100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AmortizationOfAboveAndBelowMarketLeases dei:LegalEntity

krc:KilroyRealtyL.P.


Amortization
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value-1013000.0-1181000.0-1334000.0-1769000.0-1914000.0-2586000.0-2965000.0-1826000.0-2321000.0-2094000.0-2101000.0-2166000.0-2938000.0-2543000.0-2502000.0-2423000.0
Percentage of AmortizationOfAboveAndBelowMarketLeases100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AmortizationOfFinancingCostsAndDiscounts

us-gaap:AmortizationOfFinancingCostsAndDiscounts


Amortization
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value0.7960.7940.7061.1760.5710.5050.5160.1940.5820.1350.2680.2340.2670.3150.8490.9290.7310.7380.70.7140.6970.6090.4410.5230.4350.4540.7521.1261.1811.2561.2681.3821.2521.4131.3551.7682.3342.9763.3763.283.4343.453.3923.3482.8262.924
Percentage of AmortizationOfFinancingCostsAndDiscounts100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AmortizationOfFinancingCostsAndDiscounts dei:LegalEntity

krc:KilroyRealtyL.P.


Amortization
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value0.7960.7940.7061.1760.5710.5050.5160.1940.5820.1350.2680.2340.2670.3150.8490.929
Percentage of AmortizationOfFinancingCostsAndDiscounts100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AssetAcquisitionConsiderationTransferred us-gaap:RealEstateAndAccumulatedDepreciationDescriptionOfProperty

us-gaap:AssetAcquisitionConsiderationTransferred

krc:A200West6thStreetAustinTX


Asset
Period End2021-06-23
Value580
Percentage of AssetAcquisitionConsiderationTransferred100.0

krc:A2045PacificHighwaySanDiegoCA


Asset
Period End2021-06-22
Value42
Percentage of AssetAcquisitionConsiderationTransferred0.0

us-gaap:AssetAcquisitionConsiderationTransferred us-gaap:RealEstateAndAccumulatedDepreciationDescriptionOfProperty, us-gaap:SubsequentEventType

krc:A601108thAvenueNEBellevueWA, us-gaap:SubsequentEvent


Asset
Period End2021-07-08
Value47
Percentage of AssetAcquisitionConsiderationTransferred0.0

us-gaap:CapitalExpendituresIncurredButNotYetPaid

us-gaap:CapitalExpendituresIncurredButNotYetPaid


Capital
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-31
Value275734222.641129141842871661235711371650-14.57226-8.972592023-19.90485-15.602-2.7693064-6.38421164245
Percentage of CapitalExpendituresIncurredButNotYetPaid100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:CapitalExpendituresIncurredButNotYetPaid dei:LegalEntity

krc:KilroyRealtyL.P.


Capital
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
Value275734222.64112914184287166123571137
Percentage of CapitalExpendituresIncurredButNotYetPaid100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ConversionOfStockAmountConverted1

us-gaap:ConversionOfStockAmountConverted1


Conversion
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-31
Value330.1293.7620.0810.00.00.00.0780.01.7170.0010.2440.00.00.0108.8540.00.00.0390.7560.1510.00.3160.00.00.00.0280.450.00.00.00.0
Percentage of ConversionOfStockAmountConverted1100.0100.0100.0100.00.00.00.0100.00.0100.0100.0100.00.00.00.0100.0100.00.00.0100.0100.0100.00.0100.00.00.00.0100.0100.00.00.00.00.0

us-gaap:DepreciationAndAmortization

us-gaap:DepreciationAndAmortization


Depreciation
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value73757271807469696866646264626062626056565350514951515350504950474950464440363536322929292320
Percentage of DepreciationAndAmortization100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DepreciationAndAmortization dei:LegalEntity

krc:KilroyRealtyL.P.


Depreciation
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value7375727180746969686664626462606262
Percentage of DepreciationAndAmortization100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DividendsCommonStock

us-gaap:DividendsCommonStock


Dividends
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value59605957585350494747474443434339220363533333332313130302929292727272725242121211919191915
Percentage of DividendsCommonStock100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DividendsCommonStock us-gaap:StatementEquityComponents

us-gaap:AccumulatedDistributionsInExcessOfNetIncome


Dividends
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value58605856575249484646464442424238215353432323231313029292929292626262624242020201818181815
Percentage of DividendsCommonStock99.099.198.498.498.398.298.198.198.198.198.098.098.098.098.098.097.597.397.297.398.198.198.098.098.097.997.997.997.997.997.797.797.797.697.697.697.297.297.296.996.996.896.996.2

us-gaap:NoncontrollingInterest


Dividends
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value0.5760.5750.9650.9390.980.9810.9810.9210.9210.9220.9430.8790.8820.8830.8830.7795.4180.9860.9880.920.6180.6260.6280.6270.630.6340.6280.6340.6380.6370.6380.6390.6390.6390.6010.6030.6010.6010.6010.6030.6030.6030.6040.603
Percentage of DividendsCommonStock1.00.91.61.61.71.81.91.91.91.92.02.02.02.02.02.02.52.72.82.71.91.92.02.02.02.12.12.12.12.12.32.32.32.42.42.42.82.82.83.13.13.23.13.8

us-gaap:Parent


Dividends
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value58605856575249484646464442424238215353432323231313029292929292626262624242020201818181815
Percentage of DividendsCommonStock99.099.198.498.498.398.298.198.198.198.198.098.098.098.098.098.097.597.397.297.398.198.198.098.098.097.997.997.997.997.997.797.797.797.697.697.697.297.297.296.996.996.896.996.2

us-gaap:EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsCapitalizedAmount

us-gaap:EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsCapitalizedAmount


Employee
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
Value1700000.01700000.01700000.01800000.02000000.01900000.01600000.0700000.01900000.01600000.02200000.01500000.02800000.01500000.01900000.01700000.01600000.02000000.01600000.01500000.01300000.01200000.01000000.0700000.0900000.0700000.0800000.0600000.0500000.0400000.0300000.0200000.0200000.0200000.0900000.0200000.0200000.0200000.0300000.0300000.0300000.0300000.0300000.0300000.0300000.0
Percentage of EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsCapitalizedAmount100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ExtinguishmentOfDebtAmount dei:LegalEntity, us-gaap:DebtInstrument, us-gaap:LongtermDebtType

us-gaap:ExtinguishmentOfDebtAmount

krc:KilroyRealtyL.P., krc:OneHundredFiftyMillionTermLoanFacility, us-gaap:LineOfCredit


Extinguishment
Period End2020-08-31
Value150
Percentage of ExtinguishmentOfDebtAmount100.0

us-gaap:GainLossOnSaleOfPropertyPlantEquipment

us-gaap:GainLossOnSaleOfPropertyPlantEquipment


Gain
Period End2021-06-302021-03-312020-06-302019-12-312019-09-302019-06-302018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-30
Value0.5434570.0290.07.1691420.00.00.00.0370.02.2570.0180.01450.0783117-3.490.03.490.00.00.00.0
Percentage of GainLossOnSaleOfPropertyPlantEquipment100.0100.00.0100.00.0100.0100.00.00.00.00.0100.00.0100.00.0100.00.0100.00.0100.0100.0100.0100.00.0100.00.00.00.00.0

us-gaap:GainLossOnSaleOfPropertyPlantEquipment dei:LegalEntity

krc:KilroyRealtyL.P.


Gain
Period End2021-06-302021-03-312020-06-302019-12-312019-09-302019-06-302018-12-312018-09-302018-06-302017-12-312017-09-302017-06-30
Value0.5434570.0290.07.1691420.00.00.0370.0
Percentage of GainLossOnSaleOfPropertyPlantEquipment100.0100.00.0100.00.0100.0100.00.00.00.0100.00.0

us-gaap:GainLossOnSaleOfPropertyPlantEquipment us-gaap:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations, us-gaap:PropertyPlantAndEquipmentByType

krc:A1800OwensStreetSanFranciscoCA, us-gaap:Building


Gain
Period End2021-03-31
Value457
Percentage of GainLossOnSaleOfPropertyPlantEquipment100.0

us-gaap:GeneralPartnersCapitalAccountDistributionAmount dei:LegalEntity

us-gaap:GeneralPartnersCapitalAccountDistributionAmount

krc:KilroyRealtyL.P.


General
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value5960595758535049474747444343
Percentage of GeneralPartnersCapitalAccountDistributionAmount100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

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

krc:KilroyRealtyL.P., krc:PartnersCapitalCommonUnit


General
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value5960595758-53.1895049474747444343
Percentage of GeneralPartnersCapitalAccountDistributionAmount100.0100.0100.0100.0100.0-100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncreaseDecreaseInOperatingAssets

us-gaap:IncreaseDecreaseInOperatingAssets


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
Value5.332-1.71-0.5618-6.025-7.966-10.2769.2127.1588.382-1.2333.650.8734.640.7629.5525.6071.811-2.0491.1927.632-1.561-1.2710.2560.6798.421-1.162-4.254-0.95.949-1.820.307-1.2627.39-1.232-1.7890.4493.8691.1081.8330.6771.816
Percentage of IncreaseDecreaseInOperatingAssets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncreaseDecreaseInOperatingAssets dei:LegalEntity

krc:KilroyRealtyL.P.


Increase
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value5.332-1.71-0.5618-6.025-7.966-10.2769.2127.1588.382-1.2333.650.8734.640.7629.552
Percentage of IncreaseDecreaseInOperatingAssets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncreaseDecreaseInOperatingLiabilities

us-gaap:IncreaseDecreaseInOperatingLiabilities


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
Value-29.07729-19.81647-7.7728.209-20.24648-19.595151135-1.9983.598-18.9617-2.2169.7914.05425-12.5662.71-4.1116-5.5785.545-9.038292.24-5.701-2.70726-2.68318-14.64524-7.67114-15.71726-20.89912
Percentage of IncreaseDecreaseInOperatingLiabilities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncreaseDecreaseInOperatingLiabilities dei:LegalEntity

krc:KilroyRealtyL.P.


Increase
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value-29.07729-19.81647-7.7728.209-20.24648-19.595151135-1.9983.598-18.9617
Percentage of IncreaseDecreaseInOperatingLiabilities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:InterestCostsCapitalized

us-gaap:InterestCostsCapitalized


Interest
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-31
Value171618192019191818151311109.829101113141210
Percentage of InterestCostsCapitalized100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:InterestCostsCapitalized dei:LegalEntity

krc:KilroyRealtyL.P.


Interest
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-30
Value171618192019191818151311
Percentage of InterestCostsCapitalized100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:InterestCostsCapitalizedAdjustment dei:LegalEntity

us-gaap:InterestCostsCapitalizedAdjustment

krc:KilroyRealtyL.P.


Interest
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value1816181920212020201919191513131210
Percentage of InterestCostsCapitalizedAdjustment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:InterestCostsIncurred dei:LegalEntity

us-gaap:InterestCostsIncurred

krc:KilroyRealtyL.P.


Interest
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value3939393836353432323031302827282828
Percentage of InterestCostsIncurred100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

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

us-gaap:LimitedLiabilityCompanyLLCOrLimitedPartnershipLPMembersOrLimitedPartnersOwnershipInterest

krc:NonAffiliatedInvestors, krc:OperatingPartnership


Limited
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value1.01.0-0.61.58300.0170-0.00100.020.020.02
Percentage of LimitedLiabilityCompanyLLCOrLimitedPartnershipLPMembersOrLimitedPartnersOwnershipInterest100.0100.0100.0100.00.0100.00.0100.00.0100.0100.0100.0

us-gaap:LimitedLiabilityCompanyLLCOrLimitedPartnershipLPMembersOrLimitedPartnersOwnershipInterest us-gaap:Ownership

krc:OperatingPartnership


Limited
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value99.099.00.697.41700.98300.00100.980.980.98
Percentage of LimitedLiabilityCompanyLLCOrLimitedPartnershipLPMembersOrLimitedPartnersOwnershipInterest9900.09900.0-100.06153.90.05782.40.0-100.00.04900.04900.04900.0

us-gaap:MarketableSecuritiesGainLossExcludingOtherThanTemporaryImpairments

us-gaap:MarketableSecuritiesGainLossExcludingOtherThanTemporaryImpairments


Marketable
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
Value1261000.01305000.01770000.01658000.02662000.0-3226000.0987000.0673000.0544000.01681000.0-2140000.0271000.0422000.0-404000.01304000.0536000.0512000.0671000.0263000.0481000.0249000.0137000.0-98000.0-681000.0122000.0388000.0-110000.0-39000.0392000.0154000.0494000.0669000.0-30000.0356000.0128000.0315000.0-155000.0435000.0276000.0-642000.026000.0187000.0245000.0311000.0-322000.0
Percentage of MarketableSecuritiesGainLossExcludingOtherThanTemporaryImpairments100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

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

us-gaap:MinorityInterestDecreaseFromRedemptions

krc:KilroyRealtyL.P., krc:PartnersCapitalCommonUnit


Minority
Period End2020-09-30
Value-6034000.0
Percentage of MinorityInterestDecreaseFromRedemptions100.0

krc:KilroyRealtyL.P., us-gaap:NoncontrollingInterest


Minority
Period End2020-09-30
Value6034000.0
Percentage of MinorityInterestDecreaseFromRedemptions-100.0

us-gaap:NoncontrollingInterestInNetIncomeLossOperatingPartnershipsRedeemable

us-gaap:NoncontrollingInterestInNetIncomeLossOperatingPartnershipsRedeemable


Noncontrolling
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
Value354000.04886000.01012000.0785000.0367000.0705000.01343000.0852000.0871000.0700000.03185000.0691000.0566000.0751000.0590000.01394000.0616000.0623000.0743000.01453000.0829000.03610000.0489000.01945000.01090000.0815000.0578000.0321000.0603000.02087000.0419000.0131000.0157000.0-22000.04479000.0-67000.0
Percentage of NoncontrollingInterestInNetIncomeLossOperatingPartnershipsRedeemable100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OperatingLeaseCost

us-gaap:OperatingLeaseCost


Operating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-09-30
Value0.8830.6920.7210.9861.331.4562.0161.1922.651.7570.0
Percentage of OperatingLeaseCost100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0

us-gaap:OperatingLeaseCost dei:LegalEntity

krc:KilroyRealtyL.P.


Operating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-09-302018-03-31
Value0.8830.6920.7210.9861.331.4562.0161.1922.651.7570.00.0
Percentage of OperatingLeaseCost100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.0

us-gaap:OperatingLeaseExpense

us-gaap:OperatingLeaseExpense


Operating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value2023000.01828000.02125000.02119000.02330000.02317000.01978000.02049000.02114000.01972000.0
Percentage of OperatingLeaseExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OperatingLeaseExpense dei:LegalEntity

krc:KilroyRealtyL.P.


Operating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value2023000.01828000.02125000.02119000.02330000.02317000.01978000.02049000.02114000.01972000.0
Percentage of OperatingLeaseExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OperatingLeaseLeaseIncome

us-gaap:OperatingLeaseLeaseIncome


Operating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value224234228227218218217212197199
Percentage of OperatingLeaseLeaseIncome100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OperatingLeaseLeaseIncome dei:LegalEntity

krc:KilroyRealtyL.P.


Operating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value224234228227218218217212197199
Percentage of OperatingLeaseLeaseIncome100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OperatingLeaseLeaseIncomeLeasePayments

us-gaap:OperatingLeaseLeaseIncomeLeasePayments


Operating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value197204201197194193181181173168
Percentage of OperatingLeaseLeaseIncomeLeasePayments100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OperatingLeasePayments

us-gaap:OperatingLeasePayments


Operating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-31
Value1432000.01455000.01058000.01781000.01573000.01332000.01307000.01218000.01479000.01220000.01249000.01110000.01239000.0
Percentage of OperatingLeasePayments100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OperatingLeasePayments dei:LegalEntity

krc:KilroyRealtyL.P.


Operating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-31
Value1432000.01455000.01058000.01781000.01573000.01332000.01307000.01218000.01479000.01220000.01249000.01110000.01239000.0
Percentage of OperatingLeasePayments100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OperatingLeaseVariableLeaseIncome

us-gaap:OperatingLeaseVariableLeaseIncome


Operating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value26313131293133302427
Percentage of OperatingLeaseVariableLeaseIncome100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherCostAndExpenseOperating

us-gaap:OtherCostAndExpenseOperating


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value40383939373842413838
Percentage of OtherCostAndExpenseOperating100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherCostAndExpenseOperating dei:LegalEntity

krc:KilroyRealtyL.P.


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value40383939373842413838
Percentage of OtherCostAndExpenseOperating100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ParticipatingSecuritiesDistributedAndUndistributedEarningsLossBasic

us-gaap:ParticipatingSecuritiesDistributedAndUndistributedEarningsLossBasic


Participating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302012-12-31
Value371000.0365000.0572000.0572000.0542000.0543000.0537000.0530000.0543000.0509000.0512000.0507000.0514000.0471000.0515000.0501000.0511000.0448000.02595000.0426000.0423000.0395000.0434000.0367000.0418000.0415000.0414000.0432000.0426000.0427000.0397000.0450000.01689000.0
Percentage of ParticipatingSecuritiesDistributedAndUndistributedEarningsLossBasic100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ParticipatingSecuritiesDistributedAndUndistributedEarningsLossBasic dei:LegalEntity

krc:KilroyRealtyL.P.


Participating
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
Value371000.0365000.0572000.0572000.0542000.0543000.0537000.0530000.0543000.0509000.0512000.0507000.0514000.0471000.0515000.0501000.0511000.0
Percentage of ParticipatingSecuritiesDistributedAndUndistributedEarningsLossBasic100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:PartnersCapitalAccountPublicSaleOfUnits dei:LegalEntity

us-gaap:PartnersCapitalAccountPublicSaleOfUnits

krc:KilroyRealtyL.P.


Partners
Period End2020-09-302020-06-302020-03-312019-09-302018-12-312018-09-302018-06-302017-12-312017-09-30
Value-0.074-0.045721353-0.0516.59712417-0.02
Percentage of PartnersCapitalAccountPublicSaleOfUnits100.0100.0100.0100.0100.0100.0100.0100.0100.0

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

krc:KilroyRealtyL.P., krc:PartnersCapitalCommonUnit


Partners
Period End2020-09-302020-06-302020-03-312019-09-302018-12-312018-09-302018-06-302017-12-312017-09-30
Value-0.074-0.045721353-0.0516.59712417-0.02
Percentage of PartnersCapitalAccountPublicSaleOfUnits100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:PartnersCapitalAccountTreasuryUnitsPurchases dei:LegalEntity

us-gaap:PartnersCapitalAccountTreasuryUnitsPurchases

krc:KilroyRealtyL.P.


Partners
Period End2021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value213.3530.7359.7991.6520.793120.02.9110.0130.01.344
Percentage of PartnersCapitalAccountTreasuryUnitsPurchases100.0100.0100.0100.0100.0100.0100.00.0100.00.0100.00.0100.0

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

krc:KilroyRealtyL.P., krc:PartnersCapitalCommonUnit


Partners
Period End2021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value213.3530.7359.799-1.6520.793120.02.9110.0130.01.344
Percentage of PartnersCapitalAccountTreasuryUnitsPurchases100.0100.0100.0100.0-100.0100.0100.00.0100.00.0100.00.0100.0

us-gaap:PartnersCapitalAccountUnitBasedCompensation dei:LegalEntity

us-gaap:PartnersCapitalAccountUnitBasedCompensation

krc:KilroyRealtyL.P.


Partners
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value645000.01950000.01101000.0805000.01720000.0839000.0820000.02210000.0628000.0845000.0589000.01864000.0599000.0600000.0
Percentage of PartnersCapitalAccountUnitBasedCompensation100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

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

krc:KilroyRealtyL.P., krc:PartnersCapitalCommonUnit


Partners
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value645000.01950000.01101000.0805000.01720000.0839000.0820000.02210000.0628000.0845000.0589000.01864000.0599000.0600000.0
Percentage of PartnersCapitalAccountUnitBasedCompensation100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:PaymentsForCapitalImprovements

us-gaap:PaymentsForCapitalImprovements


Payments
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-31
Value3528408.83436444837293158333835262119213016392527202624382734324533242525
Percentage of PaymentsForCapitalImprovements100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:PaymentsForCapitalImprovements dei:LegalEntity

krc:KilroyRealtyL.P.


Payments
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value3528408.834364448372931583338352621
Percentage of PaymentsForCapitalImprovements100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:PaymentsOfFinancingCosts

us-gaap:PaymentsOfFinancingCosts


Payments
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value7.3340.2350.3783.9332.1230.161.134.2130.3930.9423.9840.4381.380.464.025.2890.3251.8660.6740.8060.3420.3370.283.7650.3720.3970.6054.1373.4880.4180.4090.4280.6772.872.5671.7521.7671.8770.4763.3834.0411.163.7126.5574.0740.569
Percentage of PaymentsOfFinancingCosts100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:PaymentsOfFinancingCosts dei:LegalEntity

krc:KilroyRealtyL.P.


Payments
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value7.3340.2350.3783.9332.1230.161.134.2130.3930.9423.9840.4381.380.464.025.289
Percentage of PaymentsOfFinancingCosts100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:PaymentsRelatedToTaxWithholdingForShareBasedCompensation

us-gaap:PaymentsRelatedToTaxWithholdingForShareBasedCompensation


Payments
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-30
Value0.0210.1953.3530.7359.7990.2871.6510.488120.02.9110.0130.01.3440.628112.0010.9910.2645.6193.961.2850.0151.8210.6720.3291.0151.5170.7070.1350.4691.2090.9250.1330.00.6030.4160.0040.00.7320.01.296
Percentage of PaymentsRelatedToTaxWithholdingForShareBasedCompensation0.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.00.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.00.0100.00.0100.0

us-gaap:PaymentsRelatedToTaxWithholdingForShareBasedCompensation dei:LegalEntity

krc:KilroyRealtyL.P.


Payments
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value0.0210.1953.3530.7359.7990.2871.6510.488120.02.9110.0130.01.344
Percentage of PaymentsRelatedToTaxWithholdingForShareBasedCompensation0.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.00.0100.00.0100.0

us-gaap:PaymentsToDevelopRealEstateAssets

us-gaap:PaymentsToDevelopRealEstateAssets


Payments
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value90172100921261672901821911811771079211112610993671286098639611210989124131887397965173302612139.8356.3355.6336.7147.1516.5683.7514.362
Percentage of PaymentsToDevelopRealEstateAssets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:PaymentsToDevelopRealEstateAssets dei:LegalEntity

krc:KilroyRealtyL.P.


Payments
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value901721009212616729018219118117710792111126109
Percentage of PaymentsToDevelopRealEstateAssets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:PaymentsToMinorityShareholders

us-gaap:PaymentsToMinorityShareholders


Payments
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-30
Value4.717116.8841.4484.3072.6082.1083.0321.5116.3014.7890.5294.3152.174.3083.5833.9234.7282.4760.8580.2810.00.00.0
Percentage of PaymentsToMinorityShareholders100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.00.0

us-gaap:PaymentsToMinorityShareholders dei:LegalEntity

krc:KilroyRealtyL.P.


Payments
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value4.717116.8841.4484.3072.6082.1083.0321.5116.3014.7890.5294.3152.174.3083.583
Percentage of PaymentsToMinorityShareholders100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ProceedsFromIssuanceOfCommonStock

us-gaap:ProceedsFromIssuanceOfCommonStock


Proceeds
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312017-01-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-30
Value-0.01-0.074469252-0.182353-0.0516.5971240.017-0.02-0.017308308310.00.00.0-0.11124924113800.0220.00.030719239.73125326382120.02210.00.00.0
Percentage of ProceedsFromIssuanceOfCommonStock100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.00.00.00.0100.0100.0100.0100.0100.00.0100.00.00.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.00.00.00.0

us-gaap:ProceedsFromIssuanceOfCommonStock dei:LegalEntity

krc:KilroyRealtyL.P.


Proceeds
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302018-12-312018-09-302017-12-312017-09-30
Value-0.01-0.074-0.045721-0.182353-0.0516.59717-0.02
Percentage of ProceedsFromIssuanceOfCommonStock100.0100.0-0.0286.4100.0100.0100.0100.0100.0100.0

us-gaap:ProceedsFromIssuanceOfCommonStock us-gaap:StatementEquityComponents, us-gaap:SubsidiarySaleOfStock

us-gaap:CommonStock, krc:ForwardEquitySale


Proceeds
Period End2020-09-30
Value0.0
Percentage of ProceedsFromIssuanceOfCommonStock-0.0

us-gaap:ProceedsFromIssuanceOfCommonStock us-gaap:SubsidiarySaleOfStock

krc:ForwardEquitySale


Proceeds
Period End2020-09-302020-06-302020-03-252020-03-312019-07-312018-08-31
Value0.00.0474247354354
Percentage of ProceedsFromIssuanceOfCommonStock-0.00.098.10.00.00.0

us-gaap:ProceedsFromIssuanceOfUnsecuredDebt

us-gaap:ProceedsFromIssuanceOfUnsecuredDebt


Proceeds
Period End2020-12-312020-09-302019-12-312019-09-302018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-30
Value0.04220.0499598500.00.04240.00.02500.00.00.00.00.00.03950.00.00.00.00.02990.00.00.01500.03240.00.03240.0
Percentage of ProceedsFromIssuanceOfUnsecuredDebt0.0100.00.0100.0100.0100.00.00.0100.00.00.0100.00.00.00.00.00.00.0100.00.00.00.00.00.0100.00.00.00.0100.00.0100.00.00.0100.00.0

us-gaap:ProceedsFromIssuanceOfUnsecuredDebt dei:LegalEntity

krc:KilroyRealtyL.P.


Proceeds
Period End2020-12-312020-09-302019-12-312019-09-302018-12-312018-09-302017-12-312017-09-30
Value0.04220.0499598504240.0
Percentage of ProceedsFromIssuanceOfUnsecuredDebt0.0100.00.0100.0100.0100.0100.00.0

us-gaap:ProceedsFromLongTermLinesOfCredit

us-gaap:ProceedsFromLongTermLinesOfCredit


Proceeds
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value0.00.00.019048020523519012014041590200700.00.00.035190800.00.0100150140160115904510.00.00.0286165223302480.02604210726522563
Percentage of ProceedsFromLongTermLinesOfCredit0.00.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.00.0100.0100.0100.00.00.0100.0100.0100.0100.0100.0100.0100.0100.00.00.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0

us-gaap:ProceedsFromLongTermLinesOfCredit dei:LegalEntity

krc:KilroyRealtyL.P.


Proceeds
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value0.00.00.01904802052351901201404159020070
Percentage of ProceedsFromLongTermLinesOfCredit0.00.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ProceedsFromSaleOfRealEstateHeldforinvestment

us-gaap:ProceedsFromSaleOfRealEstateHeldforinvestment


Proceeds
Period End2021-06-302021-03-312019-12-312019-09-302018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-31
Value0.54210121070.03640.00.00.00.01700.0110.048142620.0153140255914433096.7690.0140.0121-1.35142100640.00.00.0
Percentage of ProceedsFromSaleOfRealEstateHeldforinvestment100.0100.0100.00.0100.00.00.00.00.0100.00.0100.00.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.00.0100.0100.0100.0100.0100.00.00.00.0

us-gaap:ProceedsFromSaleOfRealEstateHeldforinvestment dei:LegalEntity

krc:KilroyRealtyL.P.


Proceeds
Period End2021-06-302021-03-312019-12-312019-09-302018-12-312018-09-302017-12-312017-09-30
Value0.54210121070.03640.00.0170
Percentage of ProceedsFromSaleOfRealEstateHeldforinvestment100.0100.0100.00.0100.00.00.0100.0

us-gaap:RealEstateTaxExpense

us-gaap:RealEstateTaxExpense


Real
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value222524232122211917181817171715161617151413111212121212111011101010109.3419.3128.8818.3897.6438.368.4138.1697.4597.5826.4826.036
Percentage of RealEstateTaxExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:RealEstateTaxExpense dei:LegalEntity

krc:KilroyRealtyL.P.


Real
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
Value2225242321222119171818171717151616
Percentage of RealEstateTaxExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:RepaymentsOfLongTermLinesOfCredit

us-gaap:RepaymentsOfLongTermLinesOfCredit


Repayments
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value0.00.038055235580455040510517010.026010.00.00.00.0255455.00.01001301600.0250251350.010.00.0185128240121212662457214415321022510.0
Percentage of RepaymentsOfLongTermLinesOfCredit0.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.00.0100.0100.0100.00.0100.0100.0100.00.0100.0100.0100.00.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:RepaymentsOfLongTermLinesOfCredit dei:LegalEntity

krc:KilroyRealtyL.P.


Repayments
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value0.00.038055235580455040510517010.026010.0
Percentage of RepaymentsOfLongTermLinesOfCredit0.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:RepaymentsOfSecuredDebt

us-gaap:RepaymentsOfSecuredDebt


Repayments
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-30
Value1.3291.3161.3031.2911.2771.2660.4650.460.454740.9140.9020.890.8781241.5271.5082.705662.4462.4312.377922.56436282.532.4562.4452.4142.394.072.31841.6841.3241011.5461221.892
Percentage of RepaymentsOfSecuredDebt100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:RepaymentsOfSecuredDebt dei:LegalEntity

krc:KilroyRealtyL.P.


Repayments
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value1.3291.3161.3031.2911.2771.2660.4650.460.454740.9140.9020.890.8781241.527
Percentage of RepaymentsOfSecuredDebt100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:RepaymentsOfUnsecuredDebt

us-gaap:RepaymentsOfUnsecuredDebt


Repayments
Period End2020-12-312018-12-312017-12-312016-12-312015-12-312014-12-312011-12-312010-12-31
Value0.02613300.03250.00.00.0
Percentage of RepaymentsOfUnsecuredDebt0.0100.0100.00.0100.00.00.00.0

us-gaap:RepaymentsOfUnsecuredDebt dei:LegalEntity

krc:KilroyRealtyL.P.


Repayments
Period End2020-12-312018-12-312017-12-31
Value0.0261330
Percentage of RepaymentsOfUnsecuredDebt0.0100.0100.0

us-gaap:SeveranceCosts1 us-gaap:IncomeStatementLocation

us-gaap:SeveranceCosts1

us-gaap:GeneralAndAdministrativeExpense


Severance
Period End2020-12-312020-09-302020-06-30
Value0.00.014
Percentage of SeveranceCosts10.00.0100.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod us-gaap:AwardType, us-gaap:SubsequentEventType

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod

krc:PerformanceBasedRSUs, us-gaap:SubsequentEvent


Share
Period End2020-07-31
Value12263.0
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod100.0

krc:TimeBasedRestrictedStockUnitsRsus, us-gaap:SubsequentEvent


Share
Period End2020-07-31
Value1514.0
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod12.3

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue us-gaap:AwardType

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue

krc:A2021PerformanceBasedRSUs


Share
Period End2021-02-18
Value63.93
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue100.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue us-gaap:TitleOfIndividual, us-gaap:AwardType

krc:OneParticipant, krc:A2021PerformanceBasedRSUs


Share
Period End2021-02-18
Value66.95
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue104.7

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate us-gaap:AwardType

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate

krc:A2021PerformanceBasedRSUs


Share
Period End2021-02-18
Value35.0
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate100.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate us-gaap:AwardType

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate

krc:A2021PerformanceBasedRSUs


Share
Period End2021-02-18
Value0.2
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate100.0

us-gaap:StockIssuedDuringPeriodValueConversionOfUnits us-gaap:StatementEquityComponents

us-gaap:StockIssuedDuringPeriodValueConversionOfUnits

us-gaap:AdditionalPaidInCapital


Stock
Period End2020-09-302020-06-302020-03-312019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312012-12-312011-12-312011-09-30
Value0.1293.7610.0810.0780.01.7170.00.2440.00.00.0108.8520.00.00.0390.7560.1510.00.3160.00.00.00.0280.00.00.0
Percentage of StockIssuedDuringPeriodValueConversionOfUnits100.0100.0100.0100.00.0100.00.0100.00.00.00.0100.0100.00.00.0100.0100.0100.00.0100.00.00.00.0100.00.00.00.0

us-gaap:NoncontrollingInterest


Stock
Period End2020-09-302020-06-302020-03-312019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312012-12-312011-12-312011-09-30
Value-0.129-3.762-0.081-0.0780.0-1.717-0.001-0.2440.00.00.0-10.939-8.8540.00.0-0.039-0.756-0.1510.0-0.3160.00.00.0-0.0280.00.00.0
Percentage of StockIssuedDuringPeriodValueConversionOfUnits-100.0-100.0-100.0-100.00.0-100.00.0-100.00.00.00.0-100.0-100.00.00.0-100.0-100.0-100.00.0-100.00.00.00.0-100.00.00.00.0

us-gaap:Parent


Stock
Period End2020-09-302020-06-302020-03-312019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312012-12-312011-12-312011-09-30
Value0.1293.7620.0810.0780.01.7170.0010.2440.00.00.0108.8540.00.00.0390.7560.1510.00.3160.00.00.00.0280.00.00.0
Percentage of StockIssuedDuringPeriodValueConversionOfUnits100.0100.0100.0100.00.0100.00.0100.00.00.00.0100.0100.00.00.0100.0100.0100.00.0100.00.00.00.0100.00.00.00.0

us-gaap:StockIssuedDuringPeriodValueRestrictedStockAwardGross us-gaap:StatementEquityComponents

us-gaap:StockIssuedDuringPeriodValueRestrictedStockAwardGross

us-gaap:AdditionalPaidInCapital


Stock
Period End2021-03-312020-09-302020-06-302020-03-312019-09-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-31
Value-8000.0-1000.00-3000.0-1000.0-4000.0000-4000.0000-3000.0000-1000.0-1000.0000-1000.0000-10000.0020000.0-10000.0
Percentage of StockIssuedDuringPeriodValueRestrictedStockAwardGross100.0100.00.0100.0100.0100.00.00.00.0100.00.00.00.0100.00.00.00.0100.0100.00.00.00.0100.00.00.00.0100.00.0100.0100.0

us-gaap:CommonStock


Stock
Period End2021-03-312020-09-302020-06-302020-03-312019-09-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-30
Value8000.01000.003000.01000.04000.00004000.00003000.000
Percentage of StockIssuedDuringPeriodValueRestrictedStockAwardGross-100.0-100.00.0-100.0-100.0-100.00.00.00.0-100.00.00.00.0-100.00.00.0

us-gaap:StockIssuedDuringPeriodValueShareBasedCompensation

us-gaap:StockIssuedDuringPeriodValueShareBasedCompensation


Stock
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302013-12-312013-09-302013-06-302013-03-312012-12-31
Value645000.01950000.01101000.0805000.01720000.0839000.0820000.02210000.0628000.0845000.0589000.01864000.0599000.0600000.0527000.04164000.0488000.0486000.0449000.0404000.0424000.0424000.0431000.0413000.0411000.0408000.0373000.0373000.0366000.0336000.0334000.0
Percentage of StockIssuedDuringPeriodValueShareBasedCompensation100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:StockIssuedDuringPeriodValueShareBasedCompensation us-gaap:StatementEquityComponents

us-gaap:AdditionalPaidInCapital


Stock
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302013-12-312013-09-302013-06-302013-03-312012-12-31
Value645000.01950000.01101000.0805000.01720000.0839000.0820000.02210000.0628000.0845000.0589000.01864000.0599000.0600000.0527000.04164000.0488000.0486000.0449000.0404000.0424000.0424000.0431000.0413000.0411000.0408000.0373000.0373000.0366000.0336000.0334000.0
Percentage of StockIssuedDuringPeriodValueShareBasedCompensation100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:Parent


Stock
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302013-12-312013-09-302013-06-302013-03-312012-12-31
Value645000.01950000.01101000.0805000.01720000.0839000.0820000.02210000.0628000.0845000.0589000.01864000.0599000.0600000.0527000.04164000.0488000.0486000.0449000.0404000.0424000.0424000.0431000.0413000.0411000.0408000.0373000.0373000.0366000.0336000.0334000.0
Percentage of StockIssuedDuringPeriodValueShareBasedCompensation100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:StockRepurchasedAndRetiredDuringPeriodValue

us-gaap:StockRepurchasedAndRetiredDuringPeriodValue


Stock
Period End2021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-03-31
Value213.3530.7359.7991.6520.793122.91113
Percentage of StockRepurchasedAndRetiredDuringPeriodValue100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:StockRepurchasedAndRetiredDuringPeriodValue us-gaap:StatementEquityComponents

us-gaap:AdditionalPaidInCapital


Stock
Period End2021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-03-31
Value213.3520.7359.7981.6510.793122.91113
Percentage of StockRepurchasedAndRetiredDuringPeriodValue100.0100.0100.0100.099.9100.0100.0100.0100.0

us-gaap:CommonStock


Stock
Period End2021-03-312020-09-302020-06-302020-03-312019-09-302019-03-312018-03-31
Value0.0030.0010.00.0010.0010.0010.002
Percentage of StockRepurchasedAndRetiredDuringPeriodValue0.00.00.00.00.10.00.0

us-gaap:Parent


Stock
Period End2021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-03-31
Value213.3530.7359.7991.6520.793122.91113
Percentage of StockRepurchasedAndRetiredDuringPeriodValue100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:StraightLineRent

us-gaap:StraightLineRent


Straight
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
Value13171518131923181712105.7275.2075.3597.73810.07.9267.6116.7734.3199.0869.4518.8536.9558.88319167.4523.8343.9595.9476.1035.3616.7245.0975.8585.0885.4875.7886.637
Percentage of StraightLineRent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:StraightLineRent dei:LegalEntity

krc:KilroyRealtyL.P.


Straight
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
Value13171518131923181712105.7275.2075.3597.73810.0
Percentage of StraightLineRent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:VariableLeaseCost

us-gaap:VariableLeaseCost


Variable
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value600000.0400000.0600000.0700000.0900000.0900000.0600000.0700000.0800000.0700000.0
Percentage of VariableLeaseCost100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:WeightedAverageNumberDilutedSharesOutstandingAdjustment

us-gaap:WeightedAverageNumberDilutedSharesOutstandingAdjustment


Weighted
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-09-302011-06-302011-03-312010-09-30
Value465530.0457010.0441330.0454830.0514340.0518730.0837190.0541790.0551560.0459160.0469390.0559470.0551910.0630020.0693390.0614830.0510020.0488720.0519680.0537590.01949100.02324500.02015500.001967300.0000000000
Percentage of WeightedAverageNumberDilutedSharesOutstandingAdjustment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.00.00.00.00.00.00.00.00.00.0

us-gaap:WeightedAverageNumberDilutedSharesOutstandingAdjustment dei:LegalEntity

krc:KilroyRealtyL.P.


Weighted
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-30
Value465530.0457010.0441330.0454830.0514340.0518730.0837190.0541790.0551560.0459160.0469390.0559470.0551910.0
Percentage of WeightedAverageNumberDilutedSharesOutstandingAdjustment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

krc:AcquisitionRelatedIntangibleLiabilitiesNet

krc:AcquisitionRelatedIntangibleLiabilitiesNet


Acquisition
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-31
Value13242930413234364043444751495353575962554536372916
Percentage of AcquisitionRelatedIntangibleLiabilitiesNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

krc:AllowanceForDeferredRentReceivables

krc:AllowanceForDeferredRentReceivables


Allowance
Period End2020-12-312019-12-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-31
Value804000.01552000.03339000.04855000.03594000.03225000.03238000.02970000.02611000.02252000.01524000.01526000.01527000.01540000.01882000.02116000.02116000.02155000.01989000.01989000.01990000.01990000.02075000.01973000.02127000.02127000.02607000.02632000.02848000.03008000.03406000.03462000.03822000.03831000.0
Percentage of AllowanceForDeferredRentReceivables100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

krc:AllowanceforDoubtfulAccountsPremiumsandOtherReceivablesAfterAdjustment

krc:AllowanceforDoubtfulAccountsPremiumsandOtherReceivablesAfterAdjustment


Allowancefor
Period End2020-12-312019-12-312018-12-31
Value1700000.0700000.02900000.0
Percentage of AllowanceforDoubtfulAccountsPremiumsandOtherReceivablesAfterAdjustment100.0100.0100.0

krc:AtMarketStockAggregateGrossSalesPriceofCommonStock us-gaap:StatementEquityComponents

krc:AtMarketStockAggregateGrossSalesPriceofCommonStock

krc:IssuanceOfEquityUnderAtmProgram


At
Period End2020-12-312018-12-312017-12-312016-12-312014-12-31
Value2521331732300
Percentage of AtMarketStockAggregateGrossSalesPriceofCommonStock100.0100.0100.0100.0100.0

krc:AtMarketStockOfferingProgramRemainedAvailableForIssuance us-gaap:StatementClassOfStock, us-gaap:StatementEquityComponents, us-gaap:SubsidiarySaleOfStock

krc:AtMarketStockOfferingProgramRemainedAvailableForIssuance

us-gaap:CommonStock, krc:A2018AtTheMarketProgram, krc:ForwardEquitySale


At
Period End2020-12-312019-03-31
Value214399
Percentage of AtMarketStockOfferingProgramRemainedAvailableForIssuance100.0100.0

krc:ContractWithCustomerLiabilityFutureAmortizationRecognizedThereafter us-gaap:DeferredRevenueArrangementType

krc:ContractWithCustomerLiabilityFutureAmortizationRecognizedThereafter

krc:TenantFundedTenantImprovements


Contract
Period End2020-12-31
Value23
Percentage of ContractWithCustomerLiabilityFutureAmortizationRecognizedThereafter100.0

krc:ContractWithCustomerLiabilityFutureAmortizationRecognizedYearFive us-gaap:DeferredRevenueArrangementType

krc:ContractWithCustomerLiabilityFutureAmortizationRecognizedYearFive

krc:TenantFundedTenantImprovements


Contract
Period End2020-12-31
Value8564000.0
Percentage of ContractWithCustomerLiabilityFutureAmortizationRecognizedYearFive100.0

krc:ContractWithCustomerLiabilityFutureAmortizationRecognizedYearFour us-gaap:DeferredRevenueArrangementType

krc:ContractWithCustomerLiabilityFutureAmortizationRecognizedYearFour

krc:TenantFundedTenantImprovements


Contract
Period End2020-12-31
Value11
Percentage of ContractWithCustomerLiabilityFutureAmortizationRecognizedYearFour100.0

krc:ContractWithCustomerLiabilityFutureAmortizationRecognizedYearOne us-gaap:DeferredRevenueArrangementType

krc:ContractWithCustomerLiabilityFutureAmortizationRecognizedYearOne

krc:TenantFundedTenantImprovements


Contract
Period End2020-12-31
Value16
Percentage of ContractWithCustomerLiabilityFutureAmortizationRecognizedYearOne100.0

krc:ContractWithCustomerLiabilityFutureAmortizationRecognizedYearThree us-gaap:DeferredRevenueArrangementType

krc:ContractWithCustomerLiabilityFutureAmortizationRecognizedYearThree

krc:TenantFundedTenantImprovements


Contract
Period End2020-12-31
Value13
Percentage of ContractWithCustomerLiabilityFutureAmortizationRecognizedYearThree100.0

krc:ContractWithCustomerLiabilityFutureAmortizationRecognizedYearTwo us-gaap:DeferredRevenueArrangementType

krc:ContractWithCustomerLiabilityFutureAmortizationRecognizedYearTwo

krc:TenantFundedTenantImprovements


Contract
Period End2020-12-31
Value15
Percentage of ContractWithCustomerLiabilityFutureAmortizationRecognizedYearTwo100.0

krc:ContractwithCustomerLiabilityOther

krc:ContractwithCustomerLiabilityOther


Contractwith
Period End2020-12-312019-12-312018-12-31
Value261915
Percentage of ContractwithCustomerLiabilityOther100.0100.0100.0

krc:DeferredLeasingCostsAndAcquisitionRelatedIntangibleAssetsNet

krc:DeferredLeasingCostsAndAcquisitionRelatedIntangibleAssetsNet


Deferred
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value18419021020820920421220220318719718318618118318519520220818018618617617317418220118317818818619018819618918716815815515515312913151
Percentage of DeferredLeasingCostsAndAcquisitionRelatedIntangibleAssetsNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

krc:DeferredLeasingCostsAndAcquisitionRelatedIntangibleAssetsNet dei:LegalEntity

krc:KilroyRealtyL.P.


Deferred
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-31
Value184190210208209204212202203187197183186183
Percentage of DeferredLeasingCostsAndAcquisitionRelatedIntangibleAssetsNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

krc:DeferredRentReceivablesGross

krc:DeferredRentReceivablesGross


Deferred
Period End2020-12-312019-12-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-31
Value38733927026526025424924123622822021320920019118517817015814113613212912312612411811211310910410710192
Percentage of DeferredRentReceivablesGross100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

krc:DisposalGroupIncludingDiscontinuedOperationAdvanceRentIncludingTenantSecurityDeposits

krc:DisposalGroupIncludingDiscontinuedOperationAdvanceRentIncludingTenantSecurityDeposits


Disposal
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302018-12-31
Value626868616365665760
Percentage of DisposalGroupIncludingDiscontinuedOperationAdvanceRentIncludingTenantSecurityDeposits100.0100.0100.0100.0100.0100.0100.0100.0100.0

krc:DisposalGroupIncludingDiscontinuedOperationAdvanceRentIncludingTenantSecurityDeposits dei:LegalEntity

krc:KilroyRealtyL.P.


Disposal
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302018-12-31
Value626868616365665760
Percentage of DisposalGroupIncludingDiscontinuedOperationAdvanceRentIncludingTenantSecurityDeposits100.0100.0100.0100.0100.0100.0100.0100.0100.0

krc:DisposalGroupIncludingDiscontinuedOperationDeferredRevenueAndAcquisitionRelatedIntangibleLiabilities

krc:DisposalGroupIncludingDiscontinuedOperationDeferredRevenueAndAcquisitionRelatedIntangibleLiabilities


Disposal
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302018-12-31
Value122123128131129130139134149
Percentage of DisposalGroupIncludingDiscontinuedOperationDeferredRevenueAndAcquisitionRelatedIntangibleLiabilities100.0100.0100.0100.0100.0100.0100.0100.0100.0

krc:DisposalGroupIncludingDiscontinuedOperationDeferredRevenueAndAcquisitionRelatedIntangibleLiabilities dei:LegalEntity

krc:KilroyRealtyL.P.


Disposal
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302018-12-31
Value122123128131129130139134149
Percentage of DisposalGroupIncludingDiscontinuedOperationDeferredRevenueAndAcquisitionRelatedIntangibleLiabilities100.0100.0100.0100.0100.0100.0100.0100.0100.0

krc:FiniteLivedIntangibleLiabilitiesAmortizationExpenseNextRollingTwelveMonths krc:FiniteLivedIntangibleAssetsAndLiabilitiesByMajorClass

krc:FiniteLivedIntangibleLiabilitiesAmortizationExpenseNextRollingTwelveMonths

krc:BelowMarketLease


Finite
Period End2020-12-312018-12-312017-12-31
Value4152000.07779000.09456000.0
Percentage of FiniteLivedIntangibleLiabilitiesAmortizationExpenseNextRollingTwelveMonths100.0100.0100.0

krc:Finitelivedintangibleliabilitiesaccumulatedamortization krc:FiniteLivedIntangibleAssetsAndLiabilitiesByMajorClass

krc:Finitelivedintangibleliabilitiesaccumulatedamortization

krc:BelowMarketLease


Finitelivedintangibleliabilitiesaccumulatedamortizationkrc:
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302012-12-31
Value13272940333129282726283030312828252417
Percentage of Finitelivedintangibleliabilitiesaccumulatedamortization100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

krc:Finitelivedintangibleliabilitiesamortizationexpenseafteryearfive krc:FiniteLivedIntangibleAssetsAndLiabilitiesByMajorClass

krc:Finitelivedintangibleliabilitiesamortizationexpenseafteryearfive

krc:BelowMarketLease


Finitelivedintangibleliabilitiesamortizationexpenseafteryearfivekrc:
Period End2020-12-312018-12-312017-12-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-30
Value3.0186.7332.654.8080.4250.4250.4250.4252.4732.4732.4732.4736.0236.0236.0234.5569.081
Percentage of Finitelivedintangibleliabilitiesamortizationexpenseafteryearfive100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

krc:Finitelivedintangibleliabilitiesamortizationexpenseyearfive krc:FiniteLivedIntangibleAssetsAndLiabilitiesByMajorClass

krc:Finitelivedintangibleliabilitiesamortizationexpenseyearfive

krc:BelowMarketLease


Finitelivedintangibleliabilitiesamortizationexpenseyearfivekrc:
Period End2020-12-312018-12-312017-12-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-30
Value710000.0988000.0790000.01031000.02169000.02169000.02035000.02035000.03597000.03597000.03597000.03597000.05177000.05177000.05177000.04525000.06127000.0
Percentage of Finitelivedintangibleliabilitiesamortizationexpenseyearfive100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

krc:Finitelivedintangibleliabilitiesamortizationexpenseyearfour krc:FiniteLivedIntangibleAssetsAndLiabilitiesByMajorClass

krc:Finitelivedintangibleliabilitiesamortizationexpenseyearfour

krc:BelowMarketLease


Finitelivedintangibleliabilitiesamortizationexpenseyearfourkrc:
Period End2020-12-312018-12-312017-12-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-30
Value812000.01486000.01253000.03676000.04581000.04583000.03574000.03574000.05735000.05735000.05735000.05735000.06780000.06780000.06780000.06127000.07195000.0
Percentage of Finitelivedintangibleliabilitiesamortizationexpenseyearfour100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

krc:Finitelivedintangibleliabilitiesamortizationexpenseyearthree krc:FiniteLivedIntangibleAssetsAndLiabilitiesByMajorClass

krc:Finitelivedintangibleliabilitiesamortizationexpenseyearthree

krc:BelowMarketLease


Finitelivedintangibleliabilitiesamortizationexpenseyearthreekrc:
Period End2020-12-312018-12-312017-12-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-30
Value1.4861.9383.9426.5197.1597.1595.7135.7137.0177.0167.3377.3377.8477.8477.8477.1959.385
Percentage of Finitelivedintangibleliabilitiesamortizationexpenseyearthree100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

krc:Finitelivedintangibleliabilitiesamortizationexpenseyeartwo krc:FiniteLivedIntangibleAssetsAndLiabilitiesByMajorClass

krc:Finitelivedintangibleliabilitiesamortizationexpenseyeartwo

krc:BelowMarketLease


Finitelivedintangibleliabilitiesamortizationexpenseyeartwokrc:
Period End2020-12-312018-12-312017-12-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-30
Value3.1674.6216.8549.1168.4388.4376.9977.0177.6387.6388.1898.4039.5679.5779.5779.38511
Percentage of Finitelivedintangibleliabilitiesamortizationexpenseyeartwo100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

krc:Finitelivedintangibleliabilitiesgross krc:FiniteLivedIntangibleAssetsAndLiabilitiesByMajorClass

krc:Finitelivedintangibleliabilitiesgross

krc:BelowMarketLease


Finitelivedintangibleliabilitiesgrosskrc:
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302012-12-31
Value26515365695657525355596468696973697070
Percentage of Finitelivedintangibleliabilitiesgross100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

krc:Finitelivedintangibleliabilitiesnet krc:FiniteLivedIntangibleAssetsAndLiabilitiesByMajorClass

krc:Finitelivedintangibleliabilitiesnet

krc:BelowMarketLease


Finitelivedintangibleliabilitiesnetkrc:
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302012-12-31
Value13242324352527242628303437384145434652
Percentage of Finitelivedintangibleliabilitiesnet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

krc:NetBookValueOfPropertiesPledgedAsCollateralForSecuredDebt dei:LegalEntity, us-gaap:LongtermDebtType

krc:NetBookValueOfPropertiesPledgedAsCollateralForSecuredDebt

krc:KilroyRealtyL.P., us-gaap:SecuredDebt


Net
Period End2020-12-31
Value222
Percentage of NetBookValueOfPropertiesPledgedAsCollateralForSecuredDebt100.0

krc:OperatingLeaseLeaseIncomeAllowanceForDoubtfulAccountsCOVID19Related

krc:OperatingLeaseLeaseIncomeAllowanceForDoubtfulAccountsCOVID19Related


Operating
Period End2020-12-31
Value600000.0
Percentage of OperatingLeaseLeaseIncomeAllowanceForDoubtfulAccountsCOVID19Related100.0

krc:RealEstatePropertiesPercentageLeased us-gaap:MajorPropertyClass

krc:RealEstatePropertiesPercentageLeased

krc:OfficeProperties


Real
Period End2020-12-312017-09-302017-06-302017-03-312016-12-31
Value94.30.9620.960.9570.97
Percentage of RealEstatePropertiesPercentageLeased100.0100.0100.0100.0100.0

krc:RealEstatePropertiesPercentageLeased us-gaap:PropertyPlantAndEquipmentByType

krc:OfficeProperties


Real
Period End2021-06-302021-03-312020-09-30
Value93.693.395.5
Percentage of RealEstatePropertiesPercentageLeased0.00.00.0

krc:RealEstatePropertiesPercentageOccupied us-gaap:MajorPropertyClass

krc:RealEstatePropertiesPercentageOccupied

krc:OfficeProperties


Real
Period End2020-12-312020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312015-12-312014-12-312014-09-302014-06-302014-03-312013-12-31
Value91.20.9350.9460.9210.9380.9250.9440.9350.940.9430.9520.940.9390.9410.960.9480.9440.9410.9360.9240.934
Percentage of RealEstatePropertiesPercentageOccupied100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

krc:StabilizedResidentialProperties


Real
Period End2020-12-312020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-31
Value72.00.9350.8240.7850.7340.7280.7970.8330.8330.830.7020.720.770.6490.46
Percentage of RealEstatePropertiesPercentageOccupied78.9100.087.185.278.378.784.489.188.688.073.776.682.069.047.9

krc:RealEstatePropertiesPercentageOccupied us-gaap:PropertyPlantAndEquipmentByType

krc:OfficeProperties


Real
Period End2021-06-302021-03-312020-09-302020-06-30
Value91.891.592.20.923
Percentage of RealEstatePropertiesPercentageOccupied0.00.00.00.0

krc:StabilizedResidentialProperties


Real
Period End2020-09-302020-06-30
Value87.80.893
Percentage of RealEstatePropertiesPercentageOccupied0.00.0

krc:SharebasedCompensationArrangementbySharebasedPaymentAwardNumberofSharesRequested us-gaap:AwardDate

krc:SharebasedCompensationArrangementbySharebasedPaymentAwardNumberofSharesRequested

krc:ShareholderMeetingDateMay212015


Sharebased
Period End2020-12-31
Value10
Percentage of SharebasedCompensationArrangementbySharebasedPaymentAwardNumberofSharesRequested100.0

krc:UndevelopedLandAndConstructionInProgress

krc:UndevelopedLandAndConstructionInProgress


Undeveloped
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
Value23181771177819382109231822961892182721312058214619931530143212921183108710139458941018136114751363126511201112127010471016907808747809668557446430328290
Percentage of UndevelopedLandAndConstructionInProgress100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

krc:UndevelopedLandAndConstructionInProgress dei:LegalEntity

krc:KilroyRealtyL.P.


Undeveloped
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
Value23181771177819382109231822961892182721312058214619931432
Percentage of UndevelopedLandAndConstructionInProgress100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

srt:RealEstateAndAccumulatedDepreciationAmountOfEncumbrances

srt:RealEstateAndAccumulatedDepreciationAmountOfEncumbrances


Real
Period End2020-12-312019-12-312018-12-31
Value254259335
Percentage of RealEstateAndAccumulatedDepreciationAmountOfEncumbrances100.0100.0100.0

srt:RealEstateAndAccumulatedDepreciationAmountOfEncumbrances us-gaap:MortgageLoansOnRealEstateDescriptionTypeOfProperty

krc:OperatingProperties


Real
Period End2020-12-31
Value254
Percentage of RealEstateAndAccumulatedDepreciationAmountOfEncumbrances100.0

srt:RealEstateAndAccumulatedDepreciationAmountOfEncumbrances us-gaap:MortgageLoansOnRealEstateDescriptionTypeOfProperty, us-gaap:RealEstateAndAccumulatedDepreciationDescriptionOfProperty

srt:OfficeBuilding, krc:A320WestlakeAve.NorthWAAnd321TerryAvenueNorthLakeUnionWA


Real
Period End2020-12-312019-12-31
Value8789
Percentage of RealEstateAndAccumulatedDepreciationAmountOfEncumbrances34.434.5

srt:OfficeBuilding, krc:WOlympicBoulevardLosAngelesCalifornia


Real
Period End2020-12-312019-12-31
Value166170
Percentage of RealEstateAndAccumulatedDepreciationAmountOfEncumbrances65.665.5

srt:RealEstateFederalIncomeTaxBasis

srt:RealEstateFederalIncomeTaxBasis


Real
Period End2020-12-31
Value8600
Percentage of RealEstateFederalIncomeTaxBasis100.0

us-gaap:AccountsPayableAndAccruedLiabilitiesCurrentAndNoncurrent

us-gaap:AccountsPayableAndAccruedLiabilitiesCurrentAndNoncurrent


Accounts
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value4294084454584014174184393853733743602782232492712192152022522112652462491992172252432151871982101841711541279892819366786852
Percentage of AccountsPayableAndAccruedLiabilitiesCurrentAndNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AccountsPayableAndAccruedLiabilitiesCurrentAndNoncurrent dei:LegalEntity

krc:KilroyRealtyL.P.


Accounts
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-31
Value429408445458401417418439385373374360278249
Percentage of AccountsPayableAndAccruedLiabilitiesCurrentAndNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AccountsReceivableGrossCurrent

us-gaap:AccountsReceivableGrossCurrent


Accounts
Period End2020-12-312019-12-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-31
Value132724211919192015151511111113
Percentage of AccountsReceivableGrossCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AccountsReceivableNet

us-gaap:AccountsReceivableNet


Accounts
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value9.7731212162016263427282017151716181313139.709109.5411118.9568.1227.2296.4431011101110109.227.1137.6436.998.3956.864.7324.8166.2583.236
Percentage of AccountsReceivableNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AccountsReceivableNet dei:LegalEntity

krc:KilroyRealtyL.P.


Accounts
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-31
Value9.77312121620162634272820171516
Percentage of AccountsReceivableNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AccrualForEnvironmentalLossContingencies us-gaap:EnvironmentalRemediationContingency

us-gaap:AccrualForEnvironmentalLossContingencies

krc:EnvironmentalMatters


Accrual
Period End2021-06-302021-03-312020-12-312020-09-302019-12-312018-12-312017-12-31
Value77727172808328
Percentage of AccrualForEnvironmentalLossContingencies100.0100.0100.0100.0100.0100.0100.0

us-gaap:AccrualForEnvironmentalLossContingencies us-gaap:RealEstateAndAccumulatedDepreciationDescriptionOfProperty

krc:A2045PacificHighwaySanDiegoCA


Accrual
Period End2021-06-22
Value5.2
Percentage of AccrualForEnvironmentalLossContingencies0.0

us-gaap:AllowanceForDoubtfulAccountsReceivableCurrent

us-gaap:AllowanceForDoubtfulAccountsReceivableCurrent


Allowance
Period End2020-12-312019-12-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-31
Value1799000.01171000.04639000.04155000.04358000.02028000.02309000.02120000.01458000.02216000.01712000.01725000.01818000.02080000.02080000.0
Percentage of AllowanceForDoubtfulAccountsReceivableCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AreaOfLand us-gaap:MajorPropertyClass

us-gaap:AreaOfLand

krc:DevelopmentSites


Area
Period End2020-12-31
Value61.0
Percentage of AreaOfLand100.0

us-gaap:AreaOfLand us-gaap:PropertyPlantAndEquipmentByType

krc:DevelopmentSites


Area
Period End2021-06-302021-03-312020-09-30
Value59.063.061.0
Percentage of AreaOfLand0.00.00.0

us-gaap:AreaOfRealEstateProperty krc:AssetAcquisition, us-gaap:StatementGeographical, us-gaap:MajorPropertyClass

us-gaap:AreaOfRealEstateProperty

krc:DevelopmentProjectInHollywood, krc:HollywoodCalifornia, krc:StabilizedOfficeProperties


Area
Period End2020-12-31
Value361390.0
Percentage of AreaOfRealEstateProperty100.0

krc:DevelopmentProjectInSanDiegoCalifornia, krc:SanDiegoCalifornia, krc:StabilizedRetailSpace


Area
Period End2020-12-31
Value95871.0
Percentage of AreaOfRealEstateProperty26.5

krc:DevelopmentProjectinSanFrancisco, krc:SanFranciscoCalifornia, krc:StabilizedOfficeProperties


Area
Period End2020-12-31
Value750370.0
Percentage of AreaOfRealEstateProperty207.6

us-gaap:AssetsFairValueDisclosure us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency

us-gaap:AssetsFairValueDisclosure

us-gaap:FairValueInputsLevel1, us-gaap:FairValueMeasurementsRecurring


Assets
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-31
Value2524272523192726252421232220
Percentage of AssetsFairValueDisclosure100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ContractWithCustomerLiability

us-gaap:ContractWithCustomerLiability


Contract
Period End2020-12-312019-12-312018-12-31
Value8896104
Percentage of ContractWithCustomerLiability100.0100.0100.0

us-gaap:ContractWithCustomerLiability us-gaap:DeferredRevenueArrangementType

krc:TenantFundedTenantImprovements


Contract
Period End2020-12-312019-12-312018-12-312017-12-31
Value8896104104
Percentage of ContractWithCustomerLiability100.0100.0100.00.0

us-gaap:DebtInstrumentCarryingAmount dei:LegalEntity

us-gaap:DebtInstrumentCarryingAmount

krc:KilroyRealtyL.P.


Debt
Period End2021-06-302021-03-312020-12-312020-09-302019-12-312018-12-312018-09-302018-06-30
Value39513953395439553579295528912807
Percentage of DebtInstrumentCarryingAmount100.0100.0100.0100.0100.0100.0100.0100.0

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

krc:KilroyRealtyL.P., krc:A2500UnsecuredSeniorNotes, us-gaap:UnsecuredDebt


Debt
Period End2020-12-31
Value425
Percentage of DebtInstrumentCarryingAmount10.7

krc:KilroyRealtyL.P., krc:A3.050UnsecuredNotes, us-gaap:UnsecuredDebt


Debt
Period End2020-12-312019-12-312018-12-31
Value5005000.0
Percentage of DebtInstrumentCarryingAmount12.614.00.0

krc:KilroyRealtyL.P., krc:A4.300UnsecuredSeniorNotes, us-gaap:UnsecuredDebt


Debt
Period End2020-12-312019-12-312018-12-312017-12-31
Value5050500.0
Percentage of DebtInstrumentCarryingAmount1.31.41.70.0

krc:KilroyRealtyL.P., krc:A4.350UnsecuredSeniorNotes, us-gaap:UnsecuredDebt


Debt
Period End2020-12-312019-12-312018-12-312017-12-31
Value2002002000.0
Percentage of DebtInstrumentCarryingAmount5.15.66.80.0

krc:KilroyRealtyL.P., krc:A4.750UnsecuredNotes, us-gaap:UnsecuredDebt


Debt
Period End2020-12-312019-12-312018-12-312017-12-31
Value4004004000.0
Percentage of DebtInstrumentCarryingAmount10.111.213.50.0

krc:KilroyRealtyL.P., krc:A4270UnsecuredSeniorNotes, us-gaap:UnsecuredDebt


Debt
Period End2020-12-31
Value350
Percentage of DebtInstrumentCarryingAmount8.9

krc:KilroyRealtyL.P., krc:FourPointFortyEightPercentMortgagePayableDueJulyOneTwoThousandTwentySeven, us-gaap:SecuredDebt


Debt
Period End2020-12-312019-12-312018-12-312017-12-31
Value87899193
Percentage of DebtInstrumentCarryingAmount2.22.53.10.0

krc:KilroyRealtyL.P., krc:ThreePointFiveSevenMortgagePayabledueDecemberTwoZeroTwoSix, us-gaap:SecuredDebt


Debt
Period End2020-12-312019-12-312018-12-312017-12-31
Value166170170170
Percentage of DebtInstrumentCarryingAmount4.24.75.80.0

us-gaap:DebtInstrumentFairValue us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementBasis, us-gaap:LongtermDebtType

us-gaap:DebtInstrumentFairValue

us-gaap:FairValueInputsLevel2, us-gaap:EstimateOfFairValueFairValueDisclosure, us-gaap:SecuredDebt


Debt
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-31
Value278272282268269236272271271264335331336339346467467468469383387388391
Percentage of DebtInstrumentFairValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:FairValueInputsLevel2, us-gaap:EstimateOfFairValueFairValueDisclosure, us-gaap:UnsecuredDebt


Debt
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312014-12-312013-12-312012-12-31
Value40143931408940243591324732523245270226222546217321452162207719832172216319001982198719481898536593601
Percentage of DebtInstrumentFairValue1439.61445.01447.31498.71331.51370.51191.31196.7995.2993.3758.1656.0636.8636.8598.9423.9464.3461.8405.0516.6512.3502.0484.90.00.00.0

us-gaap:DebtInstrumentFairValue us-gaap:FairValueByMeasurementBasis, us-gaap:LongtermDebtType

us-gaap:CarryingReportedAmountFairValueDisclosure, us-gaap:SecuredDebt


Debt
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-31
Value251252253254256257258259259259335336338339340465467469472370373378380
Percentage of DebtInstrumentFairValue90.092.789.794.995.0108.694.795.595.698.499.9101.7100.4100.098.399.5100.0100.2100.896.696.397.497.2

us-gaap:CarryingReportedAmountFairValueDisclosure, us-gaap:UnsecuredDebt


Debt
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-31
Value36723671367036683399305030493048255325522552220721562155200619092097209618471846184518451844
Percentage of DebtInstrumentFairValue1316.71349.41298.91366.41260.31287.11116.91123.9940.4966.9759.8666.2640.2634.8578.4408.0448.3447.4393.7481.2475.8475.5471.0

us-gaap:DebtInstrumentInterestRateEffectivePercentage dei:LegalEntity, us-gaap:DebtInstrument, us-gaap:LongtermDebtType

us-gaap:DebtInstrumentInterestRateEffectivePercentage

krc:KilroyRealtyL.P., krc:A2500UnsecuredSeniorNotes, us-gaap:UnsecuredDebt


Debt
Period End2020-12-31
Value2.56
Percentage of DebtInstrumentInterestRateEffectivePercentage100.0

krc:KilroyRealtyL.P., krc:A3.050UnsecuredNotes, us-gaap:UnsecuredDebt


Debt
Period End2020-12-312019-12-31
Value3.0640.03064
Percentage of DebtInstrumentInterestRateEffectivePercentage119.70.0

krc:KilroyRealtyL.P., krc:A3.350UnsecuredSeniorNotes, us-gaap:UnsecuredDebt


Debt
Period End2020-12-312019-12-312018-12-31
Value3.350.03350.0335
Percentage of DebtInstrumentInterestRateEffectivePercentage130.90.00.0

krc:KilroyRealtyL.P., krc:A3.450UnsecuredNotes, us-gaap:UnsecuredDebt


Debt
Period End2020-12-312019-12-312018-12-31
Value3.470.03470.0347
Percentage of DebtInstrumentInterestRateEffectivePercentage135.50.00.0

krc:KilroyRealtyL.P., krc:A3.450UnsecuredSeniorNotes, us-gaap:UnsecuredDebt


Debt
Period End2020-12-312019-12-312018-12-31
Value3.450.03450.0345
Percentage of DebtInstrumentInterestRateEffectivePercentage134.80.00.0

krc:KilroyRealtyL.P., krc:A3.800UnsecuredSeniorNotes, us-gaap:UnsecuredDebt


Debt
Period End2020-12-312019-12-312018-12-31
Value3.80.0380.038
Percentage of DebtInstrumentInterestRateEffectivePercentage148.40.00.0

krc:KilroyRealtyL.P., krc:A4.250UnsecuredSeniorNotes, us-gaap:UnsecuredDebt


Debt
Period End2020-12-312019-12-312018-12-31
Value4.350.04350.0435
Percentage of DebtInstrumentInterestRateEffectivePercentage169.90.00.0

krc:KilroyRealtyL.P., krc:A4.300UnsecuredSeniorNotes, us-gaap:UnsecuredDebt


Debt
Period End2020-12-312019-12-312018-12-31
Value4.30.0430.043
Percentage of DebtInstrumentInterestRateEffectivePercentage168.00.00.0

krc:KilroyRealtyL.P., krc:A4.350UnsecuredSeniorNotes, us-gaap:UnsecuredDebt


Debt
Period End2020-12-312019-12-312018-12-31
Value4.350.04350.0435
Percentage of DebtInstrumentInterestRateEffectivePercentage169.90.00.0

krc:KilroyRealtyL.P., krc:A4.375UnsecuredSeniorNotes, us-gaap:UnsecuredDebt


Debt
Period End2020-12-312019-12-312018-12-31
Value4.4440.044440.04444
Percentage of DebtInstrumentInterestRateEffectivePercentage173.60.00.0

krc:KilroyRealtyL.P., krc:A4.750UnsecuredNotes, us-gaap:UnsecuredDebt


Debt
Period End2020-12-312019-12-312018-12-31
Value4.80.0480.048
Percentage of DebtInstrumentInterestRateEffectivePercentage187.50.00.0

krc:KilroyRealtyL.P., krc:A4270UnsecuredSeniorNotes, us-gaap:UnsecuredDebt


Debt
Period End2020-12-31
Value4.27
Percentage of DebtInstrumentInterestRateEffectivePercentage166.8

krc:KilroyRealtyL.P., krc:FourPointFortyEightPercentMortgagePayableDueJulyOneTwoThousandTwentySeven, us-gaap:SecuredDebt


Debt
Period End2020-12-312019-12-312018-12-31
Value4.480.04480.0448
Percentage of DebtInstrumentInterestRateEffectivePercentage175.00.00.0

krc:KilroyRealtyL.P., krc:ThreePointFiveSevenMortgagePayabledueDecemberTwoZeroTwoSix, us-gaap:SecuredDebt


Debt
Period End2020-12-312019-12-312018-12-31
Value3.570.03570.0357
Percentage of DebtInstrumentInterestRateEffectivePercentage139.50.00.0

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

us-gaap:DebtInstrumentUnamortizedDiscount

krc:KilroyRealtyL.P., us-gaap:SeniorNotes


Debt
Period End2021-06-302021-03-312020-12-312020-09-302019-09-302018-12-31
Value7.78.08.38.56.76.6
Percentage of DebtInstrumentUnamortizedDiscount100.0100.0100.0100.0100.0100.0

us-gaap:DebtInstrumentUnamortizedDiscount us-gaap:DebtInstrument, us-gaap:LongtermDebtType

krc:A2.500UnsecuredSeniorNotes, us-gaap:SeniorNotes


Debt
Period End2020-08-31
Value2.7
Percentage of DebtInstrumentUnamortizedDiscount0.0

us-gaap:DebtInstrumentUnamortizedDiscountPremiumAndDebtIssuanceCostsNet dei:LegalEntity, us-gaap:DebtInstrument, us-gaap:LongtermDebtType

us-gaap:DebtInstrumentUnamortizedDiscountPremiumAndDebtIssuanceCostsNet

krc:KilroyRealtyL.P., krc:A2500UnsecuredSeniorNotes, us-gaap:UnsecuredDebt


Debt
Period End2020-12-31
Value6332000.0
Percentage of DebtInstrumentUnamortizedDiscountPremiumAndDebtIssuanceCostsNet100.0

krc:KilroyRealtyL.P., krc:A3.050UnsecuredNotes, us-gaap:UnsecuredDebt


Debt
Period End2020-12-312019-12-312018-12-31
Value5399000.05998000.00
Percentage of DebtInstrumentUnamortizedDiscountPremiumAndDebtIssuanceCostsNet85.30.00.0

krc:KilroyRealtyL.P., krc:A3.350UnsecuredSeniorNotes, us-gaap:UnsecuredDebt


Debt
Period End2020-12-312019-12-312018-12-312017-12-31
Value709000.0825000.0941000.01056000.0
Percentage of DebtInstrumentUnamortizedDiscountPremiumAndDebtIssuanceCostsNet11.20.00.00.0

krc:KilroyRealtyL.P., krc:A3.450UnsecuredNotes, us-gaap:UnsecuredDebt


Debt
Period End2020-12-312019-12-312018-12-312017-12-31
Value2321000.02907000.03493000.04047000.0
Percentage of DebtInstrumentUnamortizedDiscountPremiumAndDebtIssuanceCostsNet36.70.00.00.0

krc:KilroyRealtyL.P., krc:A3.450UnsecuredSeniorNotes, us-gaap:UnsecuredDebt


Debt
Period End2020-12-312019-12-312018-12-312017-12-31
Value347000.0390000.0432000.0475000.0
Percentage of DebtInstrumentUnamortizedDiscountPremiumAndDebtIssuanceCostsNet5.50.00.00.0

krc:KilroyRealtyL.P., krc:A3.800UnsecuredSeniorNotes, us-gaap:UnsecuredDebt


Debt
Period End2020-12-312019-12-312018-12-312017-12-31
Value560000.0834000.01108000.01382000.0
Percentage of DebtInstrumentUnamortizedDiscountPremiumAndDebtIssuanceCostsNet8.80.00.00.0

krc:KilroyRealtyL.P., krc:A4.250UnsecuredSeniorNotes, us-gaap:UnsecuredDebt


Debt
Period End2020-12-312019-12-312018-12-312017-12-31
Value4567000.05100000.05632000.06164000.0
Percentage of DebtInstrumentUnamortizedDiscountPremiumAndDebtIssuanceCostsNet72.10.00.00.0

krc:KilroyRealtyL.P., krc:A4.300UnsecuredSeniorNotes, us-gaap:UnsecuredDebt


Debt
Period End2020-12-312019-12-312018-12-312017-12-31
Value246000.0290000.0342000.00
Percentage of DebtInstrumentUnamortizedDiscountPremiumAndDebtIssuanceCostsNet3.90.00.00.0

krc:KilroyRealtyL.P., krc:A4.350UnsecuredSeniorNotes, us-gaap:UnsecuredDebt


Debt
Period End2020-12-312019-12-312018-12-312017-12-31
Value1012000.01186000.01375000.00
Percentage of DebtInstrumentUnamortizedDiscountPremiumAndDebtIssuanceCostsNet16.00.00.00.0

krc:KilroyRealtyL.P., krc:A4.375UnsecuredSeniorNotes, us-gaap:UnsecuredDebt


Debt
Period End2020-12-312019-12-312018-12-312017-12-31
Value2631000.03185000.03738000.04292000.0
Percentage of DebtInstrumentUnamortizedDiscountPremiumAndDebtIssuanceCostsNet41.60.00.00.0

krc:KilroyRealtyL.P., krc:A4.750UnsecuredNotes, us-gaap:UnsecuredDebt


Debt
Period End2020-12-312019-12-312018-12-312017-12-31
Value3952000.04446000.04960000.00
Percentage of DebtInstrumentUnamortizedDiscountPremiumAndDebtIssuanceCostsNet62.40.00.00.0

krc:KilroyRealtyL.P., krc:A4270UnsecuredSeniorNotes, us-gaap:UnsecuredDebt


Debt
Period End2020-12-31
Value1825000.0
Percentage of DebtInstrumentUnamortizedDiscountPremiumAndDebtIssuanceCostsNet28.8

us-gaap:DebtInstrumentUnamortizedDiscountPremiumNet dei:LegalEntity, us-gaap:DebtInstrument, us-gaap:LongtermDebtType

us-gaap:DebtInstrumentUnamortizedDiscountPremiumNet

krc:KilroyRealtyL.P., krc:A2500UnsecuredSeniorNotes, us-gaap:UnsecuredDebt


Debt
Period End2020-08-31
Value2700000.0
Percentage of DebtInstrumentUnamortizedDiscountPremiumNet100.0

us-gaap:DebtInstrumentUnamortizedDiscountPremiumNet us-gaap:LongtermDebtType

us-gaap:UnsecuredDebt


Debt
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-31
Value8300000.06500000.06600000.06300000.0-6600000.0-7400000.05900000.01900000.02100000.02400000.0
Percentage of DebtInstrumentUnamortizedDiscountPremiumNet0.00.00.00.00.00.00.00.00.00.0

us-gaap:DeferredCompensationLiabilityCurrentAndNoncurrent

us-gaap:DeferredCompensationLiabilityCurrentAndNoncurrent


Deferred
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312015-06-302014-12-312013-12-312012-12-31
Value27272120141212119.97.3
Percentage of DeferredCompensationLiabilityCurrentAndNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DeferredRentReceivablesNet

us-gaap:DeferredRentReceivablesNet


Deferred
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value38437038637535835233731429728026726125625124623823322521821220719918918317616815613913413012712112412211511011010610110397938974
Percentage of DeferredRentReceivablesNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DeferredRentReceivablesNet dei:LegalEntity

krc:KilroyRealtyL.P.


Deferred
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-31
Value384370386375358352337314297280267261256246
Percentage of DeferredRentReceivablesNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DividendsPayableCurrentAndNoncurrent

us-gaap:DividendsPayableCurrentAndNoncurrent


Dividends
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value59595959575753535047474747434343443822237373534343333323131313131292928282526222222202017
Percentage of DividendsPayableCurrentAndNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DividendsPayableCurrentAndNoncurrent dei:LegalEntity

krc:KilroyRealtyL.P.


Dividends
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
Value5959595957575353504747474743
Percentage of DividendsPayableCurrentAndNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

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

krc:KilroyRealtyL.P., us-gaap:RestrictedStockUnitsRSU


Dividends
Period End2020-12-312019-12-312018-12-312017-12-31
Value0.8380.820.7970.651
Percentage of DividendsPayableCurrentAndNoncurrent1.41.51.71.5

us-gaap:DividendsPayableCurrentAndNoncurrent dei:LegalEntity, us-gaap:PreferredUnitsByName

krc:KilroyRealtyL.P., krc:PartnersCapitalCommonUnit


Dividends
Period End2020-12-312019-12-312018-12-312017-12-31
Value59534743
Percentage of DividendsPayableCurrentAndNoncurrent100.0100.0100.0100.0

krc:KilroyRealtyL.P., krc:PartnersCapitalGeneralPartner


Dividends
Period End2020-12-312019-12-312018-12-312017-12-31
Value58514541
Percentage of DividendsPayableCurrentAndNoncurrent97.696.696.496.5

krc:KilroyRealtyL.P., krc:PartnersCapitalLimitedPartner


Dividends
Period End2020-12-312019-12-312018-12-312017-12-31
Value0.5750.9810.9220.883
Percentage of DividendsPayableCurrentAndNoncurrent1.01.81.92.0

us-gaap:DividendsPayableCurrentAndNoncurrent us-gaap:StatementClassOfStock

krc:CommonStockholdersAndNoncontrollingUnitholders


Dividends
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-31
Value59534743220333129272119
Percentage of DividendsPayableCurrentAndNoncurrent100.0100.0100.0100.099.395.395.094.694.194.794.1

us-gaap:CapitalUnits


Dividends
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-31
Value0.5750.9810.9220.8835.4180.6180.6310.6320.6390.6010.603
Percentage of DividendsPayableCurrentAndNoncurrent1.01.81.92.02.41.81.92.02.22.63.0

us-gaap:CommonStock


Dividends
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-31
Value58514541212323028262018
Percentage of DividendsPayableCurrentAndNoncurrent97.696.696.496.595.492.391.891.390.790.789.9

us-gaap:EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized

us-gaap:EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized


Employee
Period End2021-06-302021-03-312020-12-312020-09-302019-12-312014-03-31
Value414735425036
Percentage of EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized100.0100.0100.0100.0100.0100.0

us-gaap:FiniteLivedIntangibleAssetsAccumulatedAmortization krc:FiniteLivedIntangibleAssetsAndLiabilitiesByMajorClass

us-gaap:FiniteLivedIntangibleAssetsAccumulatedAmortization

krc:DeferredLeasingCosts


Finite
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302011-12-31
Value1041001001018985817772747274747170686359586261555352
Percentage of FiniteLivedIntangibleAssetsAccumulatedAmortization100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:LeasesAcquiredInPlace


Finite
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302011-12-31
Value253136464039373433323543434445444244403134262015
Percentage of FiniteLivedIntangibleAssetsAccumulatedAmortization24.631.635.945.745.345.945.744.946.543.148.758.858.461.964.064.868.074.269.650.155.448.338.129.7

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseAfterYearFive krc:FiniteLivedIntangibleAssetsAndLiabilitiesByMajorClass

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseAfterYearFive

krc:DeferredLeasingCosts


Finite
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-30
Value7167514144515048373735313336262322292424222724
Percentage of FiniteLivedIntangibleAssetsAmortizationExpenseAfterYearFive100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:LeasesAcquiredInPlace


Finite
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-30
Value1.6632.1382.6163.515.1985.4585.4585.4585.4578.2918.298.2918.2918.3026.6946.6943.9738.6696.5396.5376.049108.31
Percentage of FiniteLivedIntangibleAssetsAmortizationExpenseAfterYearFive2.33.25.08.411.610.610.811.314.422.223.526.124.922.924.927.917.929.226.627.127.339.433.3

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths krc:FiniteLivedIntangibleAssetsAndLiabilitiesByMajorClass

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths

krc:DeferredLeasingCosts


Finite
Period End2020-12-312019-12-312018-12-312017-12-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-31
Value31303130256.741219276.9361320256.384121822
Percentage of FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:LeasesAcquiredInPlace


Finite
Period End2020-12-312019-12-312018-12-312017-12-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-31
Value6.531111613102.85.8729.829134.2749.4915196.549132023
Percentage of FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths21.036.852.144.241.141.545.950.249.961.671.876.375.3102.6104.9113.3102.7

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseYearFive krc:FiniteLivedIntangibleAssetsAndLiabilitiesByMajorClass

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseYearFive

krc:DeferredLeasingCosts


Finite
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-30
Value1916141312151413111513131415131312141312111110
Percentage of FiniteLivedIntangibleAssetsAmortizationExpenseYearFive100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:LeasesAcquiredInPlace


Finite
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-30
Value0.4730.6020.6481.7082.5052.9232.9232.7892.7894.7144.7144.7144.7145.5325.6895.6894.5747.7446.8186.8185.4176.5054.636
Percentage of FiniteLivedIntangibleAssetsAmortizationExpenseYearFive2.43.54.312.819.919.320.220.623.831.134.735.133.135.141.742.437.353.549.255.447.455.042.5

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseYearFour krc:FiniteLivedIntangibleAssetsAndLiabilitiesByMajorClass

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseYearFour

krc:DeferredLeasingCosts


Finite
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-30
Value2119181616191817151917171819171615161614131413
Percentage of FiniteLivedIntangibleAssetsAmortizationExpenseYearFour100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:LeasesAcquiredInPlace


Finite
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-30
Value0.5841.6411.5892.5085.7395.1485.1494.6374.6376.3736.3736.3736.3738.448.7748.7747.6599.4458.6138.6136.7989.6147.353
Percentage of FiniteLivedIntangibleAssetsAmortizationExpenseYearFour2.78.28.515.634.426.427.526.529.633.536.536.934.344.051.552.448.355.852.557.949.466.854.7

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseYearThree krc:FiniteLivedIntangibleAssetsAndLiabilitiesByMajorClass

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseYearThree

krc:DeferredLeasingCosts


Finite
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-30
Value2423212021232221192221202222191918191917161817
Percentage of FiniteLivedIntangibleAssetsAmortizationExpenseYearThree100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:LeasesAcquiredInPlace


Finite
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-30
Value1.5344.0012.8615.618.8566.9986.9986.2966.2969.1139.1129.2819.2811010109.3611211119.9131511
Percentage of FiniteLivedIntangibleAssetsAmortizationExpenseYearThree6.316.913.127.941.429.630.629.332.240.243.344.441.945.752.954.150.864.461.566.860.583.966.5

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo krc:FiniteLivedIntangibleAssetsAndLiabilitiesByMajorClass

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo

krc:DeferredLeasingCosts


Finite
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-30
Value2827262525262624222523232524222221232321202019
Percentage of FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:LeasesAcquiredInPlace


Finite
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-30
Value3.8856.6685.9638.85139.7399.7389.0369.1081010101013131312191818152214
Percentage of FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo13.724.722.234.752.636.137.236.640.040.743.745.243.652.859.961.259.181.078.183.776.9111.575.3

us-gaap:FiniteLivedIntangibleAssetsGross krc:FiniteLivedIntangibleAssetsAndLiabilitiesByMajorClass

us-gaap:FiniteLivedIntangibleAssetsGross

krc:DeferredLeasingCosts


Finite
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302011-12-31
Value300286266248239229228223205201196201216196184183178170168171168153149142
Percentage of FiniteLivedIntangibleAssetsGross100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:LeasesAcquiredInPlace


Finite
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302011-12-31
Value4058668294727270727480939794100104100108106103101987461
Percentage of FiniteLivedIntangibleAssetsGross13.420.324.933.039.531.431.931.635.336.740.846.345.047.954.356.956.163.762.960.760.164.450.143.0

us-gaap:GeneralPartnersCapitalAccount dei:LegalEntity

us-gaap:GeneralPartnersCapitalAccount

krc:KilroyRealtyL.P.


General
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-31
Value55005512507950515049507443694340398839874003387638763773
Percentage of GeneralPartnersCapitalAccount100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:InvestmentBuildingAndBuildingImprovements

us-gaap:InvestmentBuildingAndBuildingImprovements


Investment
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value66826480678365356289599758665770571253005207505650174987490848714983496249384669463945014091402839063880405938823720370635903527365236313335316931372970283028812820247024351920
Percentage of InvestmentBuildingAndBuildingImprovements100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:InvestmentBuildingAndBuildingImprovements dei:LegalEntity

krc:KilroyRealtyL.P.


Investment
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-31
Value66826480678365356289599758665770571253005207505650174908
Percentage of InvestmentBuildingAndBuildingImprovements100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:LandAndLandImprovements

us-gaap:LandAndLandImprovements


Land
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302013-12-312013-06-302013-03-312012-12-312012-09-302012-06-302011-12-31
Value155115391628161215461506146613151284118411601127112711271076107611081108110810171020978875850839838877757675657635637612562576537
Percentage of LandAndLandImprovements100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:LandAndLandImprovements dei:LegalEntity

krc:KilroyRealtyL.P.


Land
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
Value15511539162816121546150614661315128411841160112711271076
Percentage of LandAndLandImprovements100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:LesseeOperatingLeaseDiscountRate us-gaap:RealEstateAndAccumulatedDepreciationDescriptionOfProperty

us-gaap:LesseeOperatingLeaseDiscountRate

krc:A200West6thStreetAustinTX


Lessee
Period End2021-06-23
Value3.97
Percentage of LesseeOperatingLeaseDiscountRate100.0

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths


Lessee
Period End2021-06-302021-03-312020-12-312020-09-30
Value7435000.05642000.05641000.05641000.0
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths100.0100.0100.0100.0

us-gaap:LesseeOperatingLeaseLiabilityPaymentsRemainderOfFiscalYear

us-gaap:LesseeOperatingLeaseLiabilityPaymentsRemainderOfFiscalYear


Lessee
Period End2021-06-302021-03-312020-09-30
Value3699000.04230000.01411000.0
Percentage of LesseeOperatingLeaseLiabilityPaymentsRemainderOfFiscalYear100.0100.0100.0

us-gaap:LessorOperatingLeasePaymentsToBeReceived

us-gaap:LessorOperatingLeasePaymentsToBeReceived


Lessor
Period End2021-06-302021-03-312020-12-312020-09-30
Value6467632272487418
Percentage of LessorOperatingLeasePaymentsToBeReceived100.0100.0100.0100.0

us-gaap:LessorOperatingLeasePaymentsToBeReceivedFiveYears

us-gaap:LessorOperatingLeasePaymentsToBeReceivedFiveYears


Lessor
Period End2021-06-302021-03-312020-12-312020-09-30
Value635609719716
Percentage of LessorOperatingLeasePaymentsToBeReceivedFiveYears100.0100.0100.0100.0

us-gaap:LessorOperatingLeasePaymentsToBeReceivedFourYears

us-gaap:LessorOperatingLeasePaymentsToBeReceivedFourYears


Lessor
Period End2021-06-302021-03-312020-12-312020-09-30
Value690662750748
Percentage of LessorOperatingLeasePaymentsToBeReceivedFourYears100.0100.0100.0100.0

us-gaap:LessorOperatingLeasePaymentsToBeReceivedNextTwelveMonths

us-gaap:LessorOperatingLeasePaymentsToBeReceivedNextTwelveMonths


Lessor
Period End2021-06-302021-03-312020-12-312020-09-30
Value782759731729
Percentage of LessorOperatingLeasePaymentsToBeReceivedNextTwelveMonths100.0100.0100.0100.0

us-gaap:LessorOperatingLeasePaymentsToBeReceivedRemainderOfFiscalYear

us-gaap:LessorOperatingLeasePaymentsToBeReceivedRemainderOfFiscalYear


Lessor
Period End2021-06-302021-03-312020-09-30
Value352517174
Percentage of LessorOperatingLeasePaymentsToBeReceivedRemainderOfFiscalYear100.0100.0100.0

us-gaap:LessorOperatingLeasePaymentsToBeReceivedThereafter

us-gaap:LessorOperatingLeasePaymentsToBeReceivedThereafter


Lessor
Period End2021-06-302021-03-312020-12-312020-09-30
Value2509233434553453
Percentage of LessorOperatingLeasePaymentsToBeReceivedThereafter100.0100.0100.0100.0

us-gaap:LessorOperatingLeasePaymentsToBeReceivedThreeYears

us-gaap:LessorOperatingLeasePaymentsToBeReceivedThreeYears


Lessor
Period End2021-06-302021-03-312020-12-312020-09-30
Value728699788790
Percentage of LessorOperatingLeasePaymentsToBeReceivedThreeYears100.0100.0100.0100.0

us-gaap:LessorOperatingLeasePaymentsToBeReceivedTwoYears

us-gaap:LessorOperatingLeasePaymentsToBeReceivedTwoYears


Lessor
Period End2021-06-302021-03-312020-12-312020-09-30
Value768739804804
Percentage of LessorOperatingLeasePaymentsToBeReceivedTwoYears100.0100.0100.0100.0

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

us-gaap:LineOfCreditFacilityInterestRateAtPeriodEnd

krc:KilroyRealtyL.P., us-gaap:RevolvingCreditFacility


Line
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
Value1.01.111.141.150.01160.01850.02760.03020.03410.0350.03480.03230.0310.0256
Percentage of LineOfCreditFacilityInterestRateAtPeriodEnd100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

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

us-gaap:LineOfCreditFacilityMaximumBorrowingCapacity

krc:KilroyRealtyL.P., us-gaap:RevolvingCreditFacility


Line
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-312017-06-30
Value1100750750750750750750750750750750750750750600
Percentage of LineOfCreditFacilityMaximumBorrowingCapacity100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

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

us-gaap:LineOfCreditFacilityRemainingBorrowingCapacity

krc:KilroyRealtyL.P., us-gaap:RevolvingCreditFacility


Line
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
Value1100750750750750370505750375565705420455750
Percentage of LineOfCreditFacilityRemainingBorrowingCapacity100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalAfterYearFive dei:LegalEntity

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalAfterYearFive

krc:KilroyRealtyL.P.


Long
Period End2021-06-302021-03-312020-12-312020-09-30
Value2399239928002800
Percentage of LongTermDebtMaturitiesRepaymentsOfPrincipalAfterYearFive100.0100.0100.0100.0

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths dei:LegalEntity

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths

krc:KilroyRealtyL.P.


Long
Period End2021-06-302021-03-312020-12-312020-09-30
Value5554000.05554000.05342000.05342000.0
Percentage of LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths100.0100.0100.0100.0

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFive dei:LegalEntity

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFive

krc:KilroyRealtyL.P.


Long
Period End2021-06-302021-03-312020-12-312020-09-30
Value401401406406
Percentage of LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFive100.0100.0100.0100.0

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour dei:LegalEntity

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour

krc:KilroyRealtyL.P.


Long
Period End2021-06-302021-03-312020-12-312020-09-30
Value406406431431
Percentage of LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour100.0100.0100.0100.0

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree dei:LegalEntity

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree

krc:KilroyRealtyL.P.


Long
Period End2021-06-302021-03-312020-12-312020-09-30
Value431431305305
Percentage of LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree100.0100.0100.0100.0

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo dei:LegalEntity

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo

krc:KilroyRealtyL.P.


Long
Period End2021-06-302021-03-312020-12-312020-09-30
Value3053055.5545.554
Percentage of LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo100.0100.0100.0100.0

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalRemainderOfFiscalYear dei:LegalEntity

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalRemainderOfFiscalYear

krc:KilroyRealtyL.P.


Long
Period End2021-06-302021-03-312020-09-30
Value2698000.04026000.01304000.0
Percentage of LongTermDebtMaturitiesRepaymentsOfPrincipalRemainderOfFiscalYear100.0100.0100.0

us-gaap:MinorityInterestInOperatingPartnerships

us-gaap:MinorityInterestInOperatingPartnerships


Minority
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302012-12-31
Value535349838387818178787876787777777777859389895757545351515151495046
Percentage of MinorityInterestInOperatingPartnerships100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

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

us-gaap:MinorityInterestOwnershipPercentageByNoncontrollingOwners

krc:NonAffiliatedInvestors, krc:OperatingPartnership


Minority
Period End2020-12-312019-12-31
Value1.01.9
Percentage of MinorityInterestOwnershipPercentageByNoncontrollingOwners100.0100.0

us-gaap:MinorityInterestOwnershipPercentageByNoncontrollingOwners us-gaap:Ownership

krc:NonAffiliatedInvestorsAndCertainExecutiveOfficersandDirectorsOfTheCompany


Minority
Period End2020-12-312019-12-31
Value1.01.9
Percentage of MinorityInterestOwnershipPercentageByNoncontrollingOwners100.0100.0

us-gaap:MinorityInterestOwnershipPercentageByParent us-gaap:Ownership

us-gaap:MinorityInterestOwnershipPercentageByParent

krc:A101FirstLLCand303SecondLLC


Minority
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-09-30
Value56.056.056.056.00.560.560.560.560.560.560.56
Percentage of MinorityInterestOwnershipPercentageByParent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

krc:OperatingPartnership


Minority
Period End2020-12-312019-12-312019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value99.00.9810.980.980.980.980.980.9790.9790.979
Percentage of MinorityInterestOwnershipPercentageByParent176.8175.2175.0175.00.0175.00.00.00.00.0

krc:RedwoodLLC


Minority
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-09-30
Value93.093.093.093.00.930.930.930.930.930.930.93
Percentage of MinorityInterestOwnershipPercentageByParent166.1166.1166.1166.1166.1166.1166.1166.1166.1166.1166.1

us-gaap:NetRentableArea

us-gaap:NetRentableArea


Net
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312016-06-302015-12-312015-09-302015-06-302014-12-312014-09-302014-06-302014-03-312014-01-312013-12-312013-06-302013-03-312012-12-312012-09-302012-06-30
Value14131313140.1141751.0463941.0463940.506571140.0790.0790.0790.0790.2003060.3203980.320398131.5327640.794126
Percentage of NetRentableArea100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:NoncontrollingInterestInVariableInterestEntity

us-gaap:NoncontrollingInterestInVariableInterestEntity


Noncontrolling
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302012-12-31
Value192190197200197197195193192190192193182183181128128129130856.656.7156.526.3366.0655.8625.8625.2224.8854.8854.8854.8850.0
Percentage of NoncontrollingInterestInVariableInterestEntity100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0

us-gaap:NoncontrollingInterestInVariableInterestEntity us-gaap:ConsolidatedEntities, us-gaap:Ownership

us-gaap:VariableInterestEntityPrimaryBeneficiary, krc:A101FirstLLCand303SecondLLC


Noncontrolling
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-31
Value187185191194192191189
Percentage of NoncontrollingInterestInVariableInterestEntity97.197.197.297.297.197.197.0

us-gaap:NoncontrollingInterestInVariableInterestEntity us-gaap:Ownership

krc:RedwoodLLC


Noncontrolling
Period End2020-12-312019-12-31
Value5.65.8
Percentage of NoncontrollingInterestInVariableInterestEntity2.83.0

us-gaap:OperatingLeaseWeightedAverageDiscountRatePercent

us-gaap:OperatingLeaseWeightedAverageDiscountRatePercent


Operating
Period End2021-06-302021-03-312020-12-312020-09-30
Value4.745.115.115.11
Percentage of OperatingLeaseWeightedAverageDiscountRatePercent100.0100.0100.0100.0

us-gaap:OtherCommitment

us-gaap:OtherCommitment


Other
Period End2021-06-302021-03-312020-12-312020-09-30
Value1000456614737
Percentage of OtherCommitment100.0100.0100.0100.0

us-gaap:PartnersCapital dei:LegalEntity

us-gaap:PartnersCapital

krc:KilroyRealtyL.P.


Partners
Period End2020-12-312019-12-312018-12-312017-12-31
Value5079436940033773
Percentage of PartnersCapital100.0100.0100.0100.0

us-gaap:PartnersCapitalAttributableToNoncontrollingInterest dei:LegalEntity

us-gaap:PartnersCapitalAttributableToNoncontrollingInterest

krc:KilroyRealtyL.P.


Partners
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
Value192190197200203203201199198195197198187186
Percentage of PartnersCapitalAttributableToNoncontrollingInterest100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:PartnersCapitalIncludingPortionAttributableToNoncontrollingInterest dei:LegalEntity

us-gaap:PartnersCapitalIncludingPortionAttributableToNoncontrollingInterest

krc:KilroyRealtyL.P.


Partners
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302016-12-312015-12-31
Value5693570252775251525352774570453941864183420140744063394739603895396237593234
Percentage of PartnersCapitalIncludingPortionAttributableToNoncontrollingInterest100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

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

krc:KilroyRealtyL.P., krc:PartnersCapitalCommonUnit


Partners
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302016-12-312015-12-31
Value5500551250795051504950744369434039883987400338763876375937733763373234313031
Percentage of PartnersCapitalIncludingPortionAttributableToNoncontrollingInterest96.696.796.396.296.196.195.695.695.395.395.395.195.495.295.396.694.291.393.7

krc:KilroyRealtyL.P., us-gaap:NoncontrollingInterest


Partners
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302016-12-312015-12-31
Value19219019720020320320119919819519719818718818613213313510
Percentage of PartnersCapitalIncludingPortionAttributableToNoncontrollingInterest3.43.33.73.83.93.94.44.44.74.74.74.94.64.84.73.43.43.60.3

us-gaap:PrepaidExpenseAndOtherAssets

us-gaap:PrepaidExpenseAndOtherAssets


Prepaid
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value6750535568675510955505272761071141089877706058312223312220202121151716169.949244621121925138.0976.307
Percentage of PrepaidExpenseAndOtherAssets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:PrepaidExpenseAndOtherAssets dei:LegalEntity

krc:KilroyRealtyL.P.


Prepaid
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
Value675053556867551095550527276114
Percentage of PrepaidExpenseAndOtherAssets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:PrepaidExpenseCurrentAndNoncurrent

us-gaap:PrepaidExpenseCurrentAndNoncurrent


Prepaid
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312015-12-31
Value269.753101215311871171213333663554839181012
Percentage of PrepaidExpenseCurrentAndNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:PrepaidExpenseCurrentAndNoncurrent us-gaap:SubsequentEventType

us-gaap:SubsequentEvent


Prepaid
Period End2021-07-08
Value5.0
Percentage of PrepaidExpenseCurrentAndNoncurrent0.0

us-gaap:RealEstateAccumulatedDepreciation

us-gaap:RealEstateAccumulatedDepreciation


Real
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312015-06-302014-12-312013-12-312012-12-312011-12-312010-12-312009-12-312008-12-31
Value17981561139112641139994994947818756742672605532
Percentage of RealEstateAccumulatedDepreciation100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements

us-gaap:RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements


Real
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312014-12-312013-12-312012-12-312011-12-31
Value768671046326564952804620401836233048
Percentage of RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:RealEstateAndAccumulatedDepreciationCarryingAmountOfLand

us-gaap:RealEstateAndAccumulatedDepreciationCarryingAmountOfLand


Real
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312014-12-312013-12-312012-12-312011-12-31
Value25032524210017681780143712451134750
Percentage of RealEstateAndAccumulatedDepreciationCarryingAmountOfLand100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements

us-gaap:RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements


Real
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312014-12-312013-12-312012-12-312011-12-31
Value5118443835912936247617891227913740
Percentage of RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements

us-gaap:RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements


Real
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312014-12-312013-12-312012-12-312011-12-31
Value269927172777275428432870280627342325
Percentage of RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:RealEstateAndAccumulatedDepreciationInitialCostOfLand

us-gaap:RealEstateAndAccumulatedDepreciationInitialCostOfLand


Real
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312014-12-312013-12-312012-12-312011-12-31
Value23712472205817261740139712311109731
Percentage of RealEstateAndAccumulatedDepreciationInitialCostOfLand100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:RealEstateGrossAtCarryingValue

us-gaap:RealEstateGrossAtCarryingValue


Real
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312014-12-312013-12-31
Value10190962884267417706060575264
Percentage of RealEstateGrossAtCarryingValue100.0100.0100.0100.0100.0100.0100.0

us-gaap:RealEstateInvestmentPropertyAccumulatedDepreciation

us-gaap:RealEstateInvestmentPropertyAccumulatedDepreciation


Real
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value1900183817981744168416221561150514801441139114111361131212641216123411861139109510541034994999960921947912885854818781815790756725801770742732720695672605
Percentage of RealEstateInvestmentPropertyAccumulatedDepreciation100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:RealEstateInvestmentPropertyAccumulatedDepreciation dei:LegalEntity

krc:KilroyRealtyL.P.


Real
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
Value19001838179817441684162215611505148014411391141113611264
Percentage of RealEstateInvestmentPropertyAccumulatedDepreciation100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:RealEstateInvestmentPropertyAtCost

us-gaap:RealEstateInvestmentPropertyAtCost


Real
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-312008-12-31
Value105529792101901008699459822962889778824861684268329813876457417723972767159706066326553649863286354610959856057575156675434526450485096501647574399427139933798374836523266321625202475
Percentage of RealEstateInvestmentPropertyAtCost100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:RealEstateInvestmentPropertyAtCost dei:LegalEntity

krc:KilroyRealtyL.P.


Real
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
Value10552979210190100869945982296288977882486168426832981387417
Percentage of RealEstateInvestmentPropertyAtCost100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:RealEstateInvestmentPropertyNet

us-gaap:RealEstateInvestmentPropertyNet


Real
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value86517953839183428260819980677472734371747035691867766333615360236042597359205537549854645333535451485064511048384781457944454266428042254000367334703222305630162931257025441914
Percentage of RealEstateInvestmentPropertyNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:RealEstateInvestmentPropertyNet dei:LegalEntity

krc:KilroyRealtyL.P.


Real
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
Value86517953839183428260819980677472734371747035691867766153
Percentage of RealEstateInvestmentPropertyNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:RedeemableNoncontrollingInterestEquityCommonFairValue

us-gaap:RedeemableNoncontrollingInterestEquityCommonFairValue


Redeemable
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-31
Value817665102118114167158153153126143156146154145158150174181168158112118124137126107112105909294958584817864566661
Percentage of RedeemableNoncontrollingInterestEquityCommonFairValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:RestrictedCash us-gaap:DisposalGroupClassification

us-gaap:RestrictedCash

us-gaap:DisposalGroupDisposedOfBySaleNotDiscontinuedOperations


Restricted
Period End2021-03-312020-12-312018-12-312017-12-31
Value1000741130.0
Percentage of RestrictedCash100.0100.0100.00.0

us-gaap:RestrictedCashAndCashEquivalents

us-gaap:RestrictedCashAndCashEquivalents


Restricted
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value450102891161616166.36.36.31190.00.00.09.1491798.2497.19956572662610.6968.137.4628.28775179333491719192475.8840.097430.358251.3491.8991.4612.059
Percentage of RestrictedCashAndCashEquivalents100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:RestrictedCashAndCashEquivalents dei:LegalEntity

krc:KilroyRealtyL.P.


Restricted
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302016-12-312015-12-31
Value450102891161616166.36.36.31190.00.00.09.1491798.249560.696
Percentage of RestrictedCashAndCashEquivalents100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.00.0100.0100.0100.0100.0100.0

us-gaap:RestrictedCashAndCashEquivalents us-gaap:DisposalGroupClassification

us-gaap:DisposalGroupDisposedOfBySaleNotDiscontinuedOperations


Restricted
Period End2021-06-30
Value431
Percentage of RestrictedCashAndCashEquivalents95.8

us-gaap:SecuredDebt

us-gaap:SecuredDebt


Secured
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value251252253254256257258259259259335336338339340465467469472370373378381475479516546549553556560563569570561520381350351473475446313294
Percentage of SecuredDebt100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:SecuredDebt dei:LegalEntity

krc:KilroyRealtyL.P.


Secured
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
Value251252253254256257258259259259335336338340
Percentage of SecuredDebt100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

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

krc:KilroyRealtyL.P., us-gaap:SecuredDebt


Secured
Period End2020-12-312019-12-312018-12-312017-12-31
Value254259336341
Percentage of SecuredDebt100.3100.4100.3100.3

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue krc:AwardFeature, us-gaap:AwardType

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue

krc:NonvestedRestrictedStockUnitsRSU, krc:TimeBasedRestrictedStockUnitsRsus


Share
Period End2020-12-312019-12-312018-12-312017-12-312016-12-31
Value67.9766.6665.8766.8359.07
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue100.0100.0100.0100.0100.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue us-gaap:AwardType

krc:MarketMeasureBasedRestrictedStockUnitsRsus


Share
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-31
Value72.0671.0467.2968.8364.9567.6858.7746.4741.2
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue106.0106.6102.2103.0110.00.00.00.00.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant


Share
Period End2021-06-302021-03-312020-09-302013-09-30
Value1400000.01300000.01600000.028355.0
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant100.0100.0100.0100.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant us-gaap:PlanName

krc:KilroyRealty2006IncentiveAwardPlan


Share
Period End2020-12-312019-12-312018-12-312017-12-312013-12-31
Value1500000.0400000.0600000.01946600.07414.0
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant0.00.00.00.00.0

us-gaap:SharePrice us-gaap:AwardType

us-gaap:SharePrice

krc:A2021PerformanceBasedRSUs


Share
Period End2021-02-18
Value57.85
Percentage of SharePrice100.0

us-gaap:SharesIssuedPricePerShare us-gaap:StatementEquityComponents

us-gaap:SharesIssuedPricePerShare

krc:IssuanceOfEquityUnderAtmProgram


Shares
Period End2020-12-312018-12-312017-12-312016-12-31
Value80.0873.6475.471.5
Percentage of SharesIssuedPricePerShare100.0100.0100.0100.0

us-gaap:TradingSecurities

us-gaap:TradingSecurities


Trading
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value252427252319272625242123222120181615141413131212131311121111109.1928.2868.0297.4356.8126.5466.4595.6915.2135.6545.4254.9023.452
Percentage of TradingSecurities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:TradingSecurities dei:LegalEntity

krc:KilroyRealtyL.P.


Trading
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
Value2524272523192726252421232220
Percentage of TradingSecurities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:UnamortizedDebtIssuanceExpense dei:LegalEntity

us-gaap:UnamortizedDebtIssuanceExpense

krc:KilroyRealtyL.P.


Unamortized
Period End2020-12-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value2220211616171313
Percentage of UnamortizedDebtIssuanceExpense100.0100.0100.0100.0100.0100.0100.0100.0

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

krc:KilroyRealtyL.P., krc:UnsecuredTermLoanFacilityUnsecuredSeniorNotesandSecuredDebt


Unamortized
Period End2021-06-302021-03-312020-09-302020-06-302020-03-31
Value2021232019
Percentage of UnamortizedDebtIssuanceExpense0.00.00.00.00.0

krc:KilroyRealtyL.P., us-gaap:RevolvingCreditFacility


Unamortized
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
Value8.31.72.12.42.73.13.43.74.04.44.75.05.36.0
Percentage of UnamortizedDebtIssuanceExpense0.00.09.40.00.00.016.717.524.826.327.037.638.70.0

krc:KilroyRealtyL.P., us-gaap:SecuredDebt


Unamortized
Period End2020-12-312019-12-312018-12-312017-12-31
Value0.7830.9091.0391.175
Percentage of UnamortizedDebtIssuanceExpense3.54.56.00.0

us-gaap:UnamortizedDebtIssuanceExpense us-gaap:LongtermDebtType

us-gaap:UnsecuredDebt


Unamortized
Period End2020-12-312019-12-312018-12-312017-12-31
Value21181512
Percentage of UnamortizedDebtIssuanceExpense96.492.188.50.0

us-gaap:UnamortizedDebtIssuanceExpense us-gaap:MortgageLoansOnRealEstateDescriptionTypeOfProperty

srt:OfficeBuilding


Unamortized
Period End2020-12-312019-12-31
Value0.80.9
Percentage of UnamortizedDebtIssuanceExpense3.64.4

us-gaap:UnsecuredDebt

us-gaap:UnsecuredDebt


Unsecured
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value36723671367036683399305030493048255325522552220721562155200619092097209618471846184518451856218117831783178317431431143114311431143014301130113011301130980980655655655144
Percentage of UnsecuredDebt100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:UnsecuredDebt dei:LegalEntity

krc:KilroyRealtyL.P.


Unsecured
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-31
Value36723671367036683399305030493048255325522552220721562006
Percentage of UnsecuredDebt100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:UnsecuredDebt dei:LegalEntity, us-gaap:DebtInstrument, us-gaap:LongtermDebtType

krc:KilroyRealtyL.P., krc:A2500UnsecuredSeniorNotes, us-gaap:UnsecuredDebt


Unsecured
Period End2020-12-31
Value418
Percentage of UnsecuredDebt11.4

krc:KilroyRealtyL.P., krc:A3.050UnsecuredNotes, us-gaap:UnsecuredDebt


Unsecured
Period End2020-12-312019-12-312018-12-31
Value4944940.0
Percentage of UnsecuredDebt13.516.20.0

krc:KilroyRealtyL.P., krc:A3.350UnsecuredSeniorNotes, us-gaap:UnsecuredDebt


Unsecured
Period End2020-12-312019-12-312018-12-312017-12-31
Value174174174173
Percentage of UnsecuredDebt4.75.76.88.7

krc:KilroyRealtyL.P., krc:A3.450UnsecuredNotes, us-gaap:UnsecuredDebt


Unsecured
Period End2020-12-312019-12-312018-12-312017-12-31
Value422422421420
Percentage of UnsecuredDebt11.513.816.521.0

krc:KilroyRealtyL.P., krc:A3.450UnsecuredSeniorNotes, us-gaap:UnsecuredDebt


Unsecured
Period End2020-12-312019-12-312018-12-312017-12-31
Value74747474
Percentage of UnsecuredDebt2.02.42.93.7

krc:KilroyRealtyL.P., krc:A3.800UnsecuredSeniorNotes, us-gaap:UnsecuredDebt


Unsecured
Period End2020-12-312019-12-312018-12-312017-12-31
Value299299298298
Percentage of UnsecuredDebt8.29.811.714.9

krc:KilroyRealtyL.P., krc:A4.250UnsecuredSeniorNotes, us-gaap:UnsecuredDebt


Unsecured
Period End2020-12-312019-12-312018-12-312017-12-31
Value395394394393
Percentage of UnsecuredDebt10.813.015.519.6

krc:KilroyRealtyL.P., krc:A4.300UnsecuredSeniorNotes, us-gaap:UnsecuredDebt


Unsecured
Period End2020-12-312019-12-312018-12-312017-12-31
Value4949490.0
Percentage of UnsecuredDebt1.41.61.90.0

krc:KilroyRealtyL.P., krc:A4.350UnsecuredSeniorNotes, us-gaap:UnsecuredDebt


Unsecured
Period End2020-12-312019-12-312018-12-312017-12-31
Value1981981980.0
Percentage of UnsecuredDebt5.46.57.80.0

krc:KilroyRealtyL.P., krc:A4.375UnsecuredSeniorNotes, us-gaap:UnsecuredDebt


Unsecured
Period End2020-12-312019-12-312018-12-312017-12-31
Value397396396395
Percentage of UnsecuredDebt10.813.015.519.7

krc:KilroyRealtyL.P., krc:A4.750UnsecuredNotes, us-gaap:UnsecuredDebt


Unsecured
Period End2020-12-312019-12-312018-12-312017-12-31
Value3963953950.0
Percentage of UnsecuredDebt10.813.015.50.0

krc:KilroyRealtyL.P., krc:A4270UnsecuredSeniorNotes, us-gaap:UnsecuredDebt


Unsecured
Period End2020-12-31
Value348
Percentage of UnsecuredDebt9.5

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

krc:KilroyRealtyL.P., us-gaap:UnsecuredDebt


Unsecured
Period End2020-12-312019-12-312018-12-312017-12-31
Value3670289924022006
Percentage of UnsecuredDebt100.095.194.2100.0

us-gaap:ValuationAllowancesAndReservesBalance us-gaap:ValuationAllowancesAndReservesType

us-gaap:ValuationAllowancesAndReservesBalance

krc:AllowanceForDeferredRent


Valuation
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-31
Value804000.01552000.03339000.03238000.01524000.01882000.0
Percentage of ValuationAllowancesAndReservesBalance100.0100.0100.0100.0100.0100.0

us-gaap:AllowanceForLoanAndLeaseLossesRealEstate


Valuation
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-31
Value1799000.01171000.04639000.02309000.01712000.02080000.0
Percentage of ValuationAllowancesAndReservesBalance223.875.5138.971.3112.3110.5

Line plots across dimensions of each concept


us-gaap:AllocatedShareBasedCompensationExpense
us-gaap:AwardType
(None,)
Allocated Share Based Compensation Expenseus-gaap: Award Type
us-gaap:ProfitLoss
us-gaap:StatementEquityComponents
(None,)
Profit Lossus-gaap: Statement Equity Components
us-gaap:FiniteLivedIntangibleAssetsNet
krc:FiniteLivedIntangibleAssetsAndLiabilitiesByMajorClass
(None,)
Finite Lived Intangible Assets Netkrc: Finite Lived Intangible Assets And Liabilities By Major Class
us-gaap:StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest
us-gaap:StatementEquityComponents
(None,)
Stockholders Equity Including Portion Attributable To Noncontrolling Interestus-gaap: Statement Equity Components
us-gaap:StockIssuedDuringPeriodValueNewIssues
us-gaap:StatementEquityComponents
(None,)
Stock Issued During Period Value New Issuesus-gaap: Statement Equity Components
us-gaap:AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue
us-gaap:StatementEquityComponents
(None,)
Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Valueus-gaap: Statement Equity Components
us-gaap:ProfitLoss
us-gaap:StatementEquityComponents
(None,)
Profit Lossus-gaap: Statement Equity Components