BDN


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

Table of contents



us-gaap:CommonStockValue

us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding
us-gaap:ConsolidatedEntities

us-gaap:WeightedAverageNumberOfSharesOutstandingBasic
us-gaap:ConsolidatedEntities
us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecurities
us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount

us-gaap:EarningsPerShareBasic
us-gaap:ConsolidatedEntities

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

us-gaap:ComprehensiveIncomeNetOfTax
us-gaap:ConsolidatedEntities

us-gaap:ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest
us-gaap:ConsolidatedEntities

us-gaap:ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest
us-gaap:ConsolidatedEntities

us-gaap:CostOfGoodsAndServicesSold
us-gaap:ConsolidationItems
us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments

us-gaap:CostsAndExpenses
us-gaap:ConsolidatedEntities
us-gaap:EquityMethodInvestmentNonconsolidatedInvestee

us-gaap:DisposalGroupNotDiscontinuedOperationGainLossOnDisposal

us-gaap:GeneralAndAdministrativeExpense
us-gaap:ConsolidatedEntities

us-gaap:GrossProfit
us-gaap:ConsolidationItems
us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments
us-gaap:ConsolidatedEntities
us-gaap:IncomeLossFromContinuingOperationsAttributableToNoncontrollingEntity

us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest
us-gaap:ConsolidatedEntities

us-gaap:IncomeTaxExpenseBenefit
us-gaap:ConsolidatedEntities

us-gaap:IncomeTaxesPaidNet
us-gaap:ConsolidatedEntities

us-gaap:InterestPaidNet
us-gaap:ConsolidatedEntities

us-gaap:NetIncomeLoss

us-gaap:NetIncomeLossAttributableToNoncontrollingInterest

us-gaap:NetIncomeLossAvailableToCommonStockholdersBasic
us-gaap:ConsolidatedEntities

us-gaap:NetIncomeLossAvailableToCommonStockholdersDiluted

us-gaap:OperatingIncomeLoss
us-gaap:ConsolidatedEntities

us-gaap:OtherComprehensiveIncomeLossNetOfTax
us-gaap:ConsolidatedEntities
us-gaap:ConsolidatedEntities, us-gaap:StatementEquityComponents
us-gaap:StatementEquityComponents

us-gaap:ProfitLoss
us-gaap:ConsolidatedEntities
us-gaap:ConsolidatedEntities, us-gaap:PartnerTypeOfPartnersCapitalAccount
us-gaap:ConsolidatedEntities, us-gaap:StatementEquityComponents
us-gaap:EquityMethodInvestmentNonconsolidatedInvestee
us-gaap:StatementEquityComponents
us-gaap:ConsolidatedEntities, us-gaap:ProductOrService
us-gaap:RevenueFromContractWithCustomerIncludingAssessedTax
us-gaap:ProductOrService
us-gaap:ProductOrService, us-gaap:InvestmentSecondaryCategorization

us-gaap:Revenues
us-gaap:ConsolidatedEntities
us-gaap:ConsolidatedEntities, us-gaap:ProductOrService
us-gaap:ConsolidationItems
us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments
us-gaap:EquityMethodInvestmentNonconsolidatedInvestee
us-gaap:ProductOrService

us-gaap:Assets
us-gaap:ConsolidatedEntities

us-gaap:Liabilities
us-gaap:ConsolidatedEntities

us-gaap:LiabilitiesAndStockholdersEquity
us-gaap:ConsolidatedEntities

us-gaap:StockholdersEquity

us-gaap:CashAndCashEquivalentsAtCarryingValue
us-gaap:ConsolidatedEntities

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents
us-gaap:ConsolidatedEntities

us-gaap:Land

us-gaap:FiniteLivedIntangibleAssetsNet
us-gaap:ConsolidatedEntities
us-gaap:FiniteLivedIntangibleAssetsByMajorClass

us-gaap:OperatingLeaseRightOfUseAsset
us-gaap:ConsolidatedEntities

us-gaap:OtherAssets
us-gaap:ConsolidatedEntities
us-gaap:EquityMethodInvestmentNonconsolidatedInvestee

us-gaap:LongTermDebt
us-gaap:EquityMethodInvestmentNonconsolidatedInvestee
us-gaap:LongLivedAssetsHeldForSaleByAssetType, us-gaap:LongtermDebtType
us-gaap:LongLivedAssetsHeldForSaleByAssetType, us-gaap:LongtermDebtType, us-gaap:SubsequentEventType
us-gaap:LongtermDebtType
us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName

us-gaap:MinorityInterest

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearTwo

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearThree

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFour

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFive

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive

us-gaap:OperatingLeaseLiability
us-gaap:ConsolidatedEntities

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDue

us-gaap:LesseeOperatingLeaseLiabilityUndiscountedExcessAmount

us-gaap:StockholdersEquity

us-gaap:StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest
us-gaap:EquityMethodInvestmentNonconsolidatedInvestee
us-gaap:StatementEquityComponents

us-gaap:CommonStockValue

us-gaap:AdditionalPaidInCapital

us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax
us-gaap:ConsolidatedEntities

us-gaap:MinorityInterest

us-gaap:MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders
us-gaap:ConsolidatedEntities
us-gaap:ConsolidatedEntities, us-gaap:StatementEquityComponents
us-gaap:StatementEquityComponents

us-gaap:NetCashProvidedByUsedInOperatingActivities
us-gaap:ConsolidatedEntities

us-gaap:NetCashProvidedByUsedInInvestingActivities
us-gaap:ConsolidatedEntities

us-gaap:NetCashProvidedByUsedInFinancingActivities
us-gaap:ConsolidatedEntities

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect
us-gaap:ConsolidatedEntities

us-gaap:AmortizationOfFinancingCosts
us-gaap:ConsolidatedEntities

us-gaap:IncreaseDecreaseInAccountsReceivable
us-gaap:ConsolidatedEntities

us-gaap:NetCashProvidedByUsedInOperatingActivities
us-gaap:ConsolidatedEntities

us-gaap:NetIncomeLoss

us-gaap:ProfitLoss
us-gaap:ConsolidatedEntities
us-gaap:ConsolidatedEntities, us-gaap:PartnerTypeOfPartnersCapitalAccount
us-gaap:ConsolidatedEntities, us-gaap:StatementEquityComponents
us-gaap:EquityMethodInvestmentNonconsolidatedInvestee
us-gaap:StatementEquityComponents

us-gaap:ShareBasedCompensation
us-gaap:ConsolidatedEntities

us-gaap:NetCashProvidedByUsedInInvestingActivities
us-gaap:ConsolidatedEntities

us-gaap:PaymentsToAcquireRealEstate
us-gaap:ConsolidatedEntities
us-gaap:MortgageLoansOnRealEstateDescriptionTypeOfProperty, us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName

us-gaap:NetCashProvidedByUsedInFinancingActivities
us-gaap:ConsolidatedEntities
bdn:PropertyLocation
us-gaap:RepaymentsOfLongTermDebt
bdn:PropertyLocation, us-gaap:LongtermDebtType
bdn:PropertyLocation, us-gaap:LongtermDebtType, us-gaap:SubsequentEventType
us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName, us-gaap:LongtermDebtType

us-gaap:PaymentsForRepurchaseOfCommonStock
us-gaap:ConsolidatedEntities
us-gaap:DebtInstrument, us-gaap:LongtermDebtType
us-gaap:DebtInstrumentInterestRateStatedPercentage
us-gaap:Range, us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName, us-gaap:DebtInstrument

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice
us-gaap:ConsolidatedEntities
bdn:AdjustmentIncreaseDecreaseOfRedeemablePartnershipUnitsToLiquidationValueAtPeriodEnd
us-gaap:ConsolidatedEntities, us-gaap:PartnerTypeOfPartnersCapitalAccount

bdn:AdvancesToTenantForPurchaseOfTenantAssetsNetOfRepayments
us-gaap:ConsolidatedEntities
us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName
bdn:AnnualPreferredReturnOnInvestedCapital
us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName
bdn:AssetAcquisitionAssetsAcquiredAndLiabilitiesAssumedNet
us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName
bdn:AssetAcquisitionBelowMarketLeaseObligation
us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName
bdn:AssetAcquisitionBuildingLandAndImprovements
us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName
bdn:AssetAcquisitionIntangibleAssets
us-gaap:EquityMethodInvestmentNonconsolidatedInvestee
bdn:BasisAdjustmentsAndOther

bdn:ChangeInCapitalExpendituresFinancedThroughAccountsPayable
us-gaap:ConsolidatedEntities

bdn:ChangeInCapitalExpendituresFinancedThroughRetentionPayableAtPeriodEnd
us-gaap:ConsolidatedEntities

bdn:ChangeInMortgageNotesPayableForDeconsolidation

bdn:IncomeLossFromRealEstateVenturesNetOfDistributions
us-gaap:ConsolidatedEntities
us-gaap:EquityMethodInvestmentNonconsolidatedInvestee
bdn:IncomeLossfromEquityMethodInvestmentsBeforeBasisAdjustmentsAndOther

bdn:IncreaseDecreaseInOtherAssetsFromDeconsolidation
us-gaap:ConsolidatedEntities
us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName
bdn:JointVentureFundingFromDebt

bdn:NetGainLossOnRealEstateVentureTransactionsIncludingRealEstateVentureFormation
us-gaap:ConsolidatedEntities

bdn:NetGainLossOnSaleOfUndepreciatedRealEstate
us-gaap:ConsolidatedEntities
us-gaap:RealEstateAndAccumulatedDepreciationDescriptionOfProperty

bdn:NetIncomeLossAttributableToNoncontrollingInterestDiluted
us-gaap:ConsolidatedEntities
bdn:NetIncomeLossAvailableToCommonUnitHoldersDiluted
us-gaap:ConsolidatedEntities
bdn:NetIncomeLossAvailableToCommonUnitholdersBasic

bdn:NoncashOrPartNoncashDeconsolidationInvestingRealEstate

bdn:NoncashOrPartNoncashDeconsolidationOperatingRealEstate
us-gaap:ConsolidatedEntities

bdn:NoncashOrPartNoncashDispositionOfInvestingRealEstate
us-gaap:ConsolidatedEntities
us-gaap:StatementEquityComponents
bdn:NoncontrollingInterestIncreaseDecreaseFromReallocation
us-gaap:ConsolidatedEntities
bdn:PartnersCapitalAccountRepurchasedAndRetired
us-gaap:ConsolidatedEntities, us-gaap:PartnerTypeOfPartnersCapitalAccount

bdn:PaymentOfOrdinaryDividendsCommonStockAndPreferredStock
us-gaap:ConsolidatedEntities

bdn:PaymentsOnAccountOfEmployeeTaxWithholdingsOnShareBasedAwards
us-gaap:ConsolidatedEntities

bdn:PaymentsToRedevelopRealEstate
us-gaap:ConsolidatedEntities

bdn:ProceedsFromStockOptionsExercisedNet
us-gaap:ConsolidatedEntities

bdn:ShareIssuanceFromToDeferredCompensationPlan
us-gaap:ConsolidatedEntities
us-gaap:ConsolidatedEntities, us-gaap:PartnerTypeOfPartnersCapitalAccount
us-gaap:StatementEquityComponents

bdn:StockIssuedDuringPeriodValueRedemptionOfLimitedPartnersUnits
us-gaap:StatementEquityComponents

bdn:StraightLineGroundRentExpense
us-gaap:ConsolidatedEntities

bdn:StraightLineRentExcludingRentTerminationFee
us-gaap:ConsolidatedEntities

bdn:ThirdPartyManagementExpenses
us-gaap:ConsolidatedEntities

bdn:ThresholdAgeForQualifyingRetirement

us-gaap:AmortizationOfAboveAndBelowMarketLeases
us-gaap:ConsolidatedEntities

us-gaap:AmortizationOfDebtDiscountPremium
us-gaap:ConsolidatedEntities

us-gaap:CommonStockDividendsPerShareDeclared

us-gaap:CostOfOtherPropertyOperatingExpense
us-gaap:ConsolidatedEntities
us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName, us-gaap:DebtInstrument, us-gaap:VariableRate
us-gaap:DebtInstrumentBasisSpreadOnVariableRate1
us-gaap:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations
us-gaap:DeconsolidationGainOrLossAmount
us-gaap:ChangeInAccountingEstimateByType
us-gaap:Depreciation

us-gaap:DepreciationAndAmortization
us-gaap:ConsolidatedEntities
us-gaap:EquityMethodInvestmentNonconsolidatedInvestee
us-gaap:ConsolidatedEntities, us-gaap:PartnerTypeOfPartnersCapitalAccount
us-gaap:DistributionsPerGeneralPartnershipUnitOutstanding

us-gaap:DividendsCommonStock
us-gaap:ConsolidatedEntities

us-gaap:DividendsCommonStockCash
us-gaap:StatementEquityComponents
us-gaap:AwardType
us-gaap:EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsCapitalizedAmount

us-gaap:GainLossOnSaleOfProperties
us-gaap:ConsolidatedEntities

us-gaap:IncomeLossFromEquityMethodInvestments
us-gaap:ConsolidatedEntities
us-gaap:EquityMethodInvestmentNonconsolidatedInvestee
us-gaap:StatementBusinessSegments

us-gaap:IncreaseDecreaseInAccountsPayableAndAccruedLiabilities
us-gaap:ConsolidatedEntities

us-gaap:IncreaseDecreaseInContractWithCustomerLiability
us-gaap:ConsolidatedEntities

us-gaap:IncreaseDecreaseInOtherOperatingAssets
us-gaap:ConsolidatedEntities

us-gaap:IncreaseDecreaseInOtherOperatingLiabilities
us-gaap:ConsolidatedEntities

us-gaap:IncrementalCommonSharesAttributableToShareBasedPaymentArrangements
us-gaap:ConsolidatedEntities

us-gaap:InterestExpenseOther
us-gaap:ConsolidatedEntities
us-gaap:EquityMethodInvestmentNonconsolidatedInvestee

us-gaap:InterestIncomeOther
us-gaap:ConsolidatedEntities

us-gaap:InterestPaidCapitalized
us-gaap:ConsolidatedEntities

us-gaap:InvestmentIncomeNet
us-gaap:ConsolidatedEntities
us-gaap:ConsolidatedEntities
us-gaap:NetIncomeLossAllocatedToLimitedPartners

us-gaap:NoncontrollingInterestDecreaseFromDeconsolidation
us-gaap:ConsolidatedEntities
us-gaap:ConsolidatedEntities, us-gaap:StatementEquityComponents
us-gaap:StatementEquityComponents
us-gaap:ConsolidatedEntities
us-gaap:NoncontrollingInterestInNetIncomeLossJointVenturePartnersRedeemable

us-gaap:NoncontrollingInterestIncreaseFromSubsidiaryEquityIssuance
us-gaap:ConsolidatedEntities
us-gaap:ConsolidatedEntities, us-gaap:PartnerTypeOfPartnersCapitalAccount
us-gaap:StatementEquityComponents

us-gaap:OperatingLeaseLeaseIncome

us-gaap:OperatingLeaseLeaseIncomeLeasePayments

us-gaap:OperatingLeaseVariableLeaseIncome

us-gaap:OtherComprehensiveIncomeLossDerivativeExcludedComponentIncreaseDecreaseAdjustmentsAfterTax
us-gaap:ConsolidatedEntities

us-gaap:OtherComprehensiveIncomeLossDerivativeExcludedComponentIncreaseDecreaseBeforeAdjustmentsAfterTax
us-gaap:ConsolidatedEntities
us-gaap:ConsolidatedEntities
us-gaap:PartnersCapitalAccountDistributions
us-gaap:ConsolidatedEntities, us-gaap:PartnerTypeOfPartnersCapitalAccount

us-gaap:PaymentsForLeasingCosts
us-gaap:ConsolidatedEntities

us-gaap:PaymentsForTenantImprovements
us-gaap:ConsolidatedEntities

us-gaap:PaymentsOfDividendsMinorityInterest

us-gaap:PaymentsToAcquireEquityMethodInvestments
us-gaap:ConsolidatedEntities

us-gaap:PaymentsToDevelopRealEstateAssets
us-gaap:ConsolidatedEntities

us-gaap:ProceedsFromEquityMethodInvestmentDividendsOrDistributionsReturnOfCapital
us-gaap:ConsolidatedEntities
us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName
us-gaap:ProceedsFromIssuanceOfSecuredDebt

us-gaap:ProceedsFromLongTermLinesOfCredit
us-gaap:ConsolidatedEntities
us-gaap:DisposalGroupClassification, us-gaap:LongLivedAssetsHeldForSaleByAssetType, us-gaap:StatementBusinessSegments, us-gaap:SubsequentEventType
us-gaap:ProceedsFromSaleOfLandHeldforinvestment

us-gaap:ProceedsFromSaleOfPropertyPlantAndEquipment
us-gaap:ConsolidatedEntities
us-gaap:MortgageLoansOnRealEstateDescriptionTypeOfProperty, us-gaap:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations

us-gaap:ProceedsFromStockOptionsExercised
us-gaap:ConsolidatedEntities

us-gaap:ProvisionForDoubtfulAccounts
us-gaap:ConsolidatedEntities

us-gaap:RealEstateTaxExpense
us-gaap:ConsolidatedEntities

us-gaap:RepaymentsOfLongTermLinesOfCredit
us-gaap:ConsolidatedEntities

us-gaap:RepaymentsOfSecuredDebt
us-gaap:ConsolidatedEntities
us-gaap:AwardType
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresWeightedAverageGrantDateFairValue
us-gaap:AwardType
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue
us-gaap:TitleOfIndividual, us-gaap:AwardDate, us-gaap:AwardType
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodTotalFairValue
us-gaap:AwardType
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue

us-gaap:StockIssuedDuringPeriodValueShareBasedCompensation
us-gaap:ConsolidatedEntities
us-gaap:ConsolidatedEntities, us-gaap:PartnerTypeOfPartnersCapitalAccount
us-gaap:StatementEquityComponents

us-gaap:StockRepurchasedAndRetiredDuringPeriodValue
us-gaap:UnusualOrInfrequentItem
us-gaap:TangibleAssetImpairmentCharges

us-gaap:TreasuryStockAcquiredAverageCostPerShare

us-gaap:UndistributedEarningsLossAllocatedToParticipatingSecuritiesBasic
us-gaap:ConsolidatedEntities

us-gaap:UndistributedEarningsLossAllocatedToParticipatingSecuritiesDiluted
us-gaap:ConsolidatedEntities
us-gaap:UnusualOrInfrequentItem
us-gaap:UnusualOrInfrequentItemInsuranceProceeds
us-gaap:ConsolidatedEntities
bdn:AccruedRentReceivableAllowanceForCreditLoss

bdn:AllowanceForDoubtfulAccruedRentReceivable
us-gaap:ConsolidatedEntities
us-gaap:ConsolidatedEntities, us-gaap:PropertyPlantAndEquipmentByType
bdn:AreaHeldByCompanyOfUndevelopedParcelsOfLand
us-gaap:RealEstateAndAccumulatedDepreciationDescriptionOfProperty
bdn:AreaOfBuildingToBeConstructed
us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName, us-gaap:SubsequentEventType
us-gaap:ConsolidatedEntities
bdn:AreaOfLandHeldForDevelopment
us-gaap:ConsolidatedEntities, us-gaap:PropertyPlantAndEquipmentByType
us-gaap:ConsolidatedEntities
bdn:AreaOwnedByCompanyOfUndevelopedParcelsOfLand
us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName
bdn:AssetAcquisitionTransactionCosts

bdn:BelowMarketLeaseAmortizationIncomeAfterYearFour
us-gaap:RealEstateAndAccumulatedDepreciationDescriptionOfProperty
bdn:CapitalCommitmentTargetsConstructionLoanAmount
us-gaap:RealEstateAndAccumulatedDepreciationDescriptionOfProperty, us-gaap:SubsequentEventType

bdn:DeferredCompensationPayableInCommonStock

bdn:DeferredCostsAccumulatedAmortization

bdn:DeferredCostsGross
us-gaap:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations
bdn:DisposalGroupIncludingDiscontinuedOperationValueOfAssetsDisposedOf
us-gaap:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations
bdn:DisposalGroupNotDiscontinuedOperationContingentConsiderationAsset
bdn:JointVentureMembers
bdn:EquityMethodInvestmentAdditionalDistributionRights
us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName
bdn:EquityMethodInvestmentOwnershipPercentageOfCommonEquity

bdn:EquityMethodInvestmentSummarizedFinancialInformationDebt
us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName

bdn:EquityMethodInvestmentsInAssetPosition
us-gaap:ConsolidatedEntities
us-gaap:BusinessAcquisition
bdn:EstimatedPotentialAdditionalContributionObligation
us-gaap:RealEstateAndAccumulatedDepreciationDescriptionOfProperty
bdn:EstimatedProjectCost
us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName, us-gaap:SubsequentEventType

bdn:FiniteLivedIntangibleAssetExpectedAmortizationafterYearFour
us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName
bdn:GroundLeaseAnnualRentExpenseIncreasePercentageThereafter
us-gaap:RealEstateAndAccumulatedDepreciationDescriptionOfProperty
bdn:JointVentureAdditionalFundingCommitted
us-gaap:RealEstateAndAccumulatedDepreciationDescriptionOfProperty
bdn:JointVentureAdditionalFundingCommittedByOtherParty
us-gaap:RealEstateAndAccumulatedDepreciationDescriptionOfProperty
bdn:JointVentureAmountFunded
us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName, us-gaap:SubsequentEventType
bdn:JointVentureFundingCommittedByOtherParty
us-gaap:ConsolidatedEntities
bdn:LandHeldUnderAvailableForSale
us-gaap:SubsequentEventType
bdn:LimitedPaymentGuaranteePercentOfPrincipleBalance

bdn:LongTermDebtMaturitiesRepaymentsOfPrincipal

bdn:MinorityInterestInOperatingPartnershipsSettlementValue

bdn:NumberOfSharesToBeIssuedUnderDeferredCompensationPlanIncludedInSharesOutstanding

bdn:OperatingRealEstateInvestmentPropertyNet
us-gaap:ConsolidatedEntities
us-gaap:ConsolidatedEntities
bdn:PotentialDevelopmentCapacity
us-gaap:ConsolidatedEntities, us-gaap:DisposalGroupClassification

bdn:RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionNetImprovementsRetirements
us-gaap:RealEstateAndAccumulatedDepreciationDescriptionOfProperty
bdn:RealEstateInvestmentOwnershipInterestHeldByPartner
us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName, us-gaap:SubsequentEventType

bdn:RealEstateInvestmentPropertyHeldForUseandSale

bdn:SaleOfOwnershipInterestPercentage
us-gaap:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations
us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName
bdn:SettlementLiabilities
us-gaap:TitleOfIndividual, us-gaap:AwardDate, us-gaap:AwardType
bdn:ShareBasedPaymentArrangementExpenseRecognizedToDate
us-gaap:BusinessAcquisition
bdn:Taxguaranteeobligation
us-gaap:BalanceSheetLocation, us-gaap:UnusualOrInfrequentItem
bdn:UnusualOrInfrequentItemOrBothRestorationLiability
us-gaap:UnusualOrInfrequentItem

srt:RealEstateFederalIncomeTaxBasis
us-gaap:ConsolidatedEntities

us-gaap:AccountsPayableAndAccruedLiabilitiesCurrentAndNoncurrent
us-gaap:ConsolidatedEntities

us-gaap:AccountsReceivableNet
us-gaap:ConsolidatedEntities
us-gaap:InvestmentSecondaryCategorization
us-gaap:DebtInstrument
us-gaap:AccumulatedAmortizationDeferredFinanceCosts

us-gaap:AllowanceForDoubtfulAccountsReceivable
us-gaap:ConsolidatedEntities
us-gaap:DisposalGroupClassification
us-gaap:AreaOfLand
us-gaap:DisposalGroupClassification, us-gaap:InvestmentType, us-gaap:StatementBusinessSegments
us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName, us-gaap:PropertyPlantAndEquipmentByType

us-gaap:AreaOfRealEstateProperty
us-gaap:ConsolidatedEntities
us-gaap:ConsolidatedEntities, us-gaap:RealEstateProperties
us-gaap:PropertyPlantAndEquipmentByType
us-gaap:RealEstateProperties

us-gaap:AssetsOfDisposalGroupIncludingDiscontinuedOperation
us-gaap:ConsolidatedEntities
us-gaap:DisposalGroupClassification, us-gaap:InvestmentType, us-gaap:StatementBusinessSegments

us-gaap:BelowMarketLeaseAccumulatedAmortization
us-gaap:FiniteLivedIntangibleAssetsByMajorClass

us-gaap:BelowMarketLeaseAmortizationIncomeAfterYearFive

us-gaap:BelowMarketLeaseAmortizationIncomeNextTwelveMonths

us-gaap:BelowMarketLeaseAmortizationIncomeRemainderOfFiscalYear

us-gaap:BelowMarketLeaseAmortizationIncomeYearFive

us-gaap:BelowMarketLeaseAmortizationIncomeYearFour

us-gaap:BelowMarketLeaseAmortizationIncomeYearThree

us-gaap:BelowMarketLeaseAmortizationIncomeYearTwo

us-gaap:BelowMarketLeaseGross
us-gaap:FiniteLivedIntangibleAssetsByMajorClass

us-gaap:BelowMarketLeaseNet
us-gaap:ConsolidatedEntities
us-gaap:FiniteLivedIntangibleAssetsByMajorClass

us-gaap:CommonStockHeldInTrust

us-gaap:ContractWithCustomerLiability
us-gaap:ConsolidatedEntities
us-gaap:BusinessAcquisition
us-gaap:ContractualObligation
us-gaap:CounterpartyName, us-gaap:LongLivedAssetsHeldForSaleByAssetType, us-gaap:OtherCommitments, us-gaap:SubsequentEventType
us-gaap:LongLivedAssetsHeldForSaleByAssetType, us-gaap:OtherCommitments, us-gaap:SubsequentEventType

us-gaap:CumulativeDividends

us-gaap:CumulativeEarningsDeficit
bdn:PropertyLocation, us-gaap:LongtermDebtType
us-gaap:DebtInstrumentCarryingAmount
us-gaap:DebtInstrument, us-gaap:LongtermDebtType
us-gaap:LongtermDebtType
us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName
us-gaap:DebtInstrument, us-gaap:LongtermDebtType
us-gaap:DebtInstrumentFaceAmount
us-gaap:FairValueByMeasurementBasis, us-gaap:LongtermDebtType
us-gaap:DebtInstrumentFairValue
bdn:PropertyLocation, us-gaap:LongtermDebtType
us-gaap:DebtInstrumentInterestRateEffectivePercentage
us-gaap:DebtInstrument, us-gaap:LongtermDebtType
us-gaap:Range, us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName, us-gaap:InvestmentType, us-gaap:LongtermDebtType

us-gaap:DebtInstrumentUnamortizedDiscountPremiumNet
us-gaap:LongtermDebtType
us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName

us-gaap:DeferredCostsCurrentAndNoncurrent
us-gaap:ConsolidatedEntities

us-gaap:DeferredCostsLeasingAccumulatedAmortization

us-gaap:DeferredCostsLeasingGross

us-gaap:DeferredCostsLeasingNet
us-gaap:DebtInstrument
us-gaap:DeferredFinanceCostsGross

us-gaap:DeferredFinanceCostsNet
us-gaap:DebtInstrument
us-gaap:FairValueByMeasurementBasis, us-gaap:LongtermDebtType
us-gaap:LongtermDebtType
us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName

us-gaap:DeferredRentReceivablesNet
us-gaap:ConsolidatedEntities
us-gaap:DerivativeInstrumentRisk, us-gaap:DerivativeInstrumentsGainLossByHedgingRelationship
us-gaap:DerivativeLiabilityFairValueGrossLiabilityIncludingNotSubjectToMasterNettingArrangement

us-gaap:DerivativeNotionalAmount

us-gaap:DevelopmentInProcess
us-gaap:ConsolidatedEntities

us-gaap:DividendsPayableCurrentAndNoncurrent
us-gaap:ConsolidatedEntities
us-gaap:AwardType
us-gaap:EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized

us-gaap:EquityMethodInvestments
us-gaap:ConsolidatedEntities
us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName
us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName, us-gaap:BalanceSheetLocation
us-gaap:StatementBusinessSegments

us-gaap:FiniteLivedIntangibleAssetsAccumulatedAmortization
us-gaap:FiniteLivedIntangibleAssetsByMajorClass

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseAfterYearFive

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseRemainderOfFiscalYear

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseYearFive

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseYearFour

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseYearThree

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo

us-gaap:FiniteLivedIntangibleAssetsGross
us-gaap:FiniteLivedIntangibleAssetsByMajorClass
us-gaap:ConsolidatedEntities
us-gaap:GeneralPartnersCapitalAccount
dei:LegalEntity, us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName
us-gaap:GuaranteeObligationsMaximumExposure
us-gaap:UnusualOrInfrequentItem
us-gaap:InsuranceSettlementsReceivable

us-gaap:InterestRateCashFlowHedgeGainLossToBeReclassifiedDuringNext12MonthsNet

us-gaap:InvestmentBuildingAndBuildingImprovements
us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName
us-gaap:Investments

us-gaap:LandAvailableForDevelopment
us-gaap:ConsolidatedEntities

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths

us-gaap:LessorOperatingLeasePaymentsToBeReceivedFiveYears

us-gaap:LessorOperatingLeasePaymentsToBeReceivedFourYears

us-gaap:LessorOperatingLeasePaymentsToBeReceivedNextTwelveMonths

us-gaap:LessorOperatingLeasePaymentsToBeReceivedThereafter

us-gaap:LessorOperatingLeasePaymentsToBeReceivedThreeYears

us-gaap:LessorOperatingLeasePaymentsToBeReceivedTwoYears

us-gaap:LineOfCredit
us-gaap:ConsolidatedEntities
us-gaap:FairValueByMeasurementBasis
us-gaap:LoansAndLeasesReceivableBeforeFeesGross
us-gaap:FairValueByMeasurementBasis, us-gaap:LongtermDebtType
us-gaap:LoansPayable
us-gaap:FairValueByMeasurementBasis
us-gaap:LoansReceivableFairValueDisclosure
us-gaap:LongtermDebtType
us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalAfterYearFive

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths
us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour
us-gaap:LongtermDebtType
us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree
us-gaap:LongtermDebtType
us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo
us-gaap:LongtermDebtType
us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalRemainderOfFiscalYear
us-gaap:CreditFacility
us-gaap:LongtermDebtWeightedAverageInterestRate

us-gaap:MinorityInterestInOperatingPartnerships
dei:LegalEntity, us-gaap:Ownership
us-gaap:MinorityInterestOwnershipPercentageByNoncontrollingOwners
us-gaap:Ownership
us-gaap:MinorityInterestOwnershipPercentageByParent
us-gaap:FairValueByMeasurementBasis, us-gaap:LongtermDebtType
us-gaap:NotesPayable

us-gaap:OtherLiabilities
us-gaap:ConsolidatedEntities
us-gaap:EquityMethodInvestmentNonconsolidatedInvestee
us-gaap:ConsolidatedEntities
us-gaap:PartnersCapital
us-gaap:ConsolidatedEntities
us-gaap:PartnersCapitalAttributableToNoncontrollingInterest
us-gaap:ConsolidatedEntities
us-gaap:PartnersCapitalIncludingPortionAttributableToNoncontrollingInterest
us-gaap:ConsolidatedEntities, us-gaap:PartnerTypeOfPartnersCapitalAccount
us-gaap:ConsolidatedEntities, us-gaap:StatementEquityComponents

us-gaap:PrepaidExpenseCurrentAndNoncurrent
us-gaap:ConsolidatedEntities

us-gaap:RealEstateAccumulatedDepreciation

us-gaap:RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements

us-gaap:RealEstateAndAccumulatedDepreciationCarryingAmountOfLand

us-gaap:RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements

us-gaap:RealEstateAndAccumulatedDepreciationInitialCostOfLand

us-gaap:RealEstateGrossAtCarryingValue

us-gaap:RealEstateInvestmentPropertyAccumulatedDepreciation
us-gaap:ConsolidatedEntities

us-gaap:RealEstateInvestmentPropertyAtCost
us-gaap:ConsolidatedEntities
us-gaap:StatementBusinessSegments

us-gaap:RealEstateInvestmentPropertyNet
us-gaap:ConsolidatedEntities
us-gaap:EquityMethodInvestmentNonconsolidatedInvestee

us-gaap:RealEstateInvestmentsJointVentures
us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName, us-gaap:InvestmentType
us-gaap:StatementBusinessSegments

us-gaap:RestrictedCashAndCashEquivalents
us-gaap:ConsolidatedEntities

us-gaap:SecuredDebt
us-gaap:ConsolidatedEntities
us-gaap:FairValueByMeasurementBasis, us-gaap:LongtermDebtType

us-gaap:SeniorNotes
us-gaap:ConsolidatedEntities
us-gaap:AwardType
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue
us-gaap:StatementClassOfStock
us-gaap:SharePrice

us-gaap:SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1
us-gaap:ConsolidatedEntities
us-gaap:TemporaryEquityCarryingAmountIncludingPortionAttributableToNoncontrollingInterests

us-gaap:TenantImprovements

us-gaap:UnsecuredDebt
us-gaap:ConsolidatedEntities
us-gaap:ValuationAllowancesAndReservesType
us-gaap:ValuationAllowancesAndReservesBalance

Plots across concepts


IncomeStatement
Net Income Loss
Expenses
Income Tax Expense Benefit
Balance Sheet
Operating Lease Right Of Use Asset
Assets
Operating Lease Right Of Use Asset
Current Assets
Cash And Cash Equivalents At Carrying Value
NonCurrent Assets
Operating Lease Right Of Use Asset
Liabilities
Operating Lease Liability
Noncurrent Liabilities
Minority Interest
Stockholders Equity
Accumulated Other Comprehensive Income Loss Net Of Tax
Per Share
Earnings Per Share Diluted
CashFlow
Net Cash Provided By Used In Investing Activities
NetCashProvidedByUsedInOperatingActivities
Increase Decrease In Accounts Receivable
NetCashProvidedByUsedInFinancingActivities
Payments For Repurchase Of Common Stock
Shares
Weighted Average Number Of Diluted Shares Outstanding
DividendsAndRepurchase
Payments For Repurchase Of Common Stock
LesseeOperatingLeaseLiabilityPaymentsDue
Lessee Operating Lease Liability Payments Due Next Twelve Months
FiniteLivedIntangibleAssets
Finite Lived Intangible Assets Net

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 ▁▁▁▁▁▁▆▆▆▆▇████▅▅▅1.7091.7071.7071.7071.7071.711.7661.7631.7631.7611.771.7871.7871.7851.7841.7551.7541.752
us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding ▁█170.848894171.63612NA171.026492170.770078176.653459NA176.7506176.690824176.464218NA178.602622179.692336179.788311NA176.835022176.756598176.201872
us-gaap:WeightedAverageNumberOfSharesOutstandingBasic █▁170.848894170.624741NA170.573028170.518095176.069968NA176.195244176.143206175.857358NA178.602622178.547555178.395525NA175.433657175.3333175.176964
 us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecurities bdn:RedeemableCommonLimitedPartnershipUnitsNA0.981634NANANA0.981634NANANA0.982871NANANA1.479799NANANA1.479799
us-gaap:EarningsPerShareBasic ▂▂▂█▂▂▂▂▂▂▄▁▂▃▃▂▂▂0.00.040.11000000000000011.610.020.040.090.040.030.020.68-0.240.070.250.420.110.020.11
 us-gaap:EarningsPerShareBasic us-gaap:ConsolidatedEntities srt:Subsidiaries▂▂▂█▂▂▂▂▂▂▄▁▂▃▃▂▂▂0.00.040.11000000000000011.610.020.040.090.040.030.020.68-0.240.070.250.420.110.020.11
us-gaap:EarningsPerShareDiluted ▂▂▂█▂▂▂▂▂▂▄▁▂▃▃▂▂▂0.00.040.11000000000000011.60.020.040.090.040.030.020.68-0.240.070.250.410.110.020.11
 us-gaap:EarningsPerShareDiluted us-gaap:ConsolidatedEntities srt:Subsidiaries▂▂▂█▂▂▂▂▂▂▄▁▂▃▃▂▂▂0.00.040.11000000000000011.60.020.040.090.040.030.020.68-0.240.070.250.410.110.020.11
  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
 COGS Ratio us-gaap:ConsolidationItems us-gaap:CorporateNonSegment█▇▃▁▂▂▃▂▃▂▁▁▂▂▄▄▅4.3763.7391.940.6261.0220.9491.5341.2431.5711.0030.5880.7990.9221.312.4752.4082.511NA
 COGS Ratio us-gaap:ConsolidationItems,us-gaap:StatementBusinessSegments us-gaap:OperatingSegments,bdn:AustinTexas▇██▇▇████▇▃▁▁▁▁▁▁25.51326.17526.06125.32825.01226.58126.92326.2826.18824.76613.1918.6418.4698.3648.5297.8868.763NA
 COGS Ratio us-gaap:ConsolidationItems,us-gaap:StatementBusinessSegments us-gaap:OperatingSegments,bdn:MetropolitanDC▁▁▃▃▃▃▃▄▄▄▇██████4.8124.6759.7039.67510.09110.75411.12613.17913.67313.5221.29622.75423.19923.05922.83423.07922.749NA
 COGS Ratio us-gaap:ConsolidationItems,us-gaap:StatementBusinessSegments us-gaap:OperatingSegments,bdn:PennsylvaniaSuburbs▁▂▆▅▅█▇▆▅▆▅▅▅▆▅▆▆30.29431.7435.04434.64934.68337.23736.3434.81834.29935.62734.31934.74534.33334.88234.11234.86135.157NA
 COGS Ratio us-gaap:ConsolidationItems,us-gaap:StatementBusinessSegments us-gaap:OperatingSegments,bdn:PhiladelphiaCBD▁▁▁▂▆███▇██▇▇▆▆▃▃51.44551.22750.82552.6462.64865.91566.9166.10564.95665.79866.23964.35263.52462.60261.32156.45254.451NA
 COGS Ratio us-gaap:ConsolidationItems,us-gaap:StatementBusinessSegments us-gaap:OperatingSegments,us-gaap:AllOtherSegments▂▁▁▁▁▂▃▂▂▁▂▂▁█▃▂▃3.6623.2133.2483.1883.3813.6524.2063.7063.4643.1823.573.7073.3396.1414.0733.7524.16NA
 Cost Ratio us-gaap:ConsolidatedEntities srt:Subsidiaries▁▁▃▃▅▇██▇▇▆▅▅▅▄▃▃120.102120.769126.821126.106136.837145.088147.039145.331144.151143.896139.203134.998133.786136.358133.344128.438127.791NA
 Cost Ratio us-gaap:EquityMethodInvestmentNonconsolidatedInvestee us-gaap:EquityMethodInvestmentNonconsolidatedInvesteeOrGroupOfInvestees██▅▅▁▁▁▁▂53.22853.35744.72243.10931.29431.15131.2132.72633.363NANANANANANANANANA
 EBT Margin us-gaap:ConsolidatedEntities srt:Subsidiaries▁▁▃▃▅▇██▇▇▆▅▅▅▄▃▃120.102120.769126.821126.106136.837145.088147.039145.331144.151143.896139.203134.998133.786136.358133.344128.438127.791NA
 Gross Margin us-gaap:ConsolidationItems,us-gaap:StatementBusinessSegments us-gaap:OperatingSegments,bdn:AustinTexas▇██▇▇████▇▃▁▁▁▁▁▁25.51326.17526.06125.32825.01226.58126.92326.2826.18824.76613.1918.6418.4698.3648.5297.8868.763NA
 Gross Margin us-gaap:ConsolidationItems,us-gaap:StatementBusinessSegments us-gaap:OperatingSegments,bdn:MetropolitanDC▁▁▃▃▃▃▃▄▄▄▇██████4.8124.6759.7039.67510.09110.75411.12613.17913.67313.5221.29622.75423.19923.05922.83423.07922.749NA
 Gross Margin us-gaap:ConsolidationItems,us-gaap:StatementBusinessSegments us-gaap:OperatingSegments,bdn:PennsylvaniaSuburbs▁▂▆▅▅█▇▆▅▆▅▅▅▆▅▆▆30.29431.7435.04434.64934.68337.23736.3434.81834.29935.62734.31934.74534.33334.88234.11234.86135.157NA
 Gross Margin us-gaap:ConsolidationItems,us-gaap:StatementBusinessSegments us-gaap:OperatingSegments,bdn:PhiladelphiaCBD▁▁▁▂▆███▇██▇▇▆▆▃▃51.44551.22750.82552.6462.64865.91566.9166.10564.95665.79866.23964.35263.52462.60261.32156.45254.451NA
 Gross Margin us-gaap:ConsolidationItems,us-gaap:StatementBusinessSegments us-gaap:OperatingSegments,us-gaap:AllOtherSegments▂▁▁▁▁▂▃▂▂▁▂▂▁█▃▂▃3.6623.2133.2483.1883.3813.6524.2063.7063.4643.1823.573.7073.3396.1414.0733.7524.16NA
 Net profit Margin us-gaap:ConsolidatedEntities srt:Subsidiaries▁▁▃▃▅▇██▇▇▆▅▅▅▄▃▃▄120.102120.769126.821126.106136.837145.088147.039145.331144.151143.896139.203134.998133.786136.358133.344128.438127.791130.92
 Operating Margin us-gaap:ConsolidatedEntities srt:Subsidiaries▁▁▃▃▅▇██▇▇▆▅▅▅▄▃▃120.102120.769126.821126.106136.837145.088147.039145.331144.151143.896139.203134.998133.786136.358133.344128.438127.791NA
  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 us-gaap:AwardType bdn:RestrictedPerformanceShareUnitsPlanNA0.8NANANA0.6NANANA2.7NANANA2.6NANANA2.4
 us-gaap:AllocatedShareBasedCompensationExpense us-gaap:AwardType us-gaap:RestrictedStockNA2.3NANANA1.9NANANA1.6NANANA1.5NANANA1.5
us-gaap:ComprehensiveIncomeNetOfTax ▂▂▂█▂▂▂▂▂▂▄▁▂▃▄▂▂▂0.8758.01320.176275.7424.2210.19717.9475.3821.4851.54116.702-41.90514.86249.29576.52419.4986.58222.39
us-gaap:ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest ▂▂▃█▂▂▃▂▂▂▅▁▃▄▅▃▂▃-0.0020.0490.1051.6190.0250.0210.1140.040.0210.0430.771-0.330.1450.4180.6520.1740.0360.181
 us-gaap:ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest us-gaap:ConsolidatedEntities srt:Subsidiaries▁▁▁▁▃▄▄▄▄█▃▅▅▂▂▄▃-0.001-0.0010.0-0.0020.010.0120.0110.0110.0130.0340.0090.020.0210.0050.0040.0120.008NA
us-gaap:ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest ▂▂▂█▂▂▂▂▂▂▄▁▂▃▄▂▂▂0.8738.06220.281277.3614.2460.21818.0615.4221.5061.583117.473-42.23515.00749.71377.17619.6726.61822.571
us-gaap:CostOfGoodsAndServicesSold ▁▁▁▃▅█▇▇██▇▅▅▇▆▄▄▄47.42746.67447.06548.99952.48256.9155.1556.07457.22257.38156.09452.87852.54756.50453.59950.70150.61851.081
us-gaap:CostsAndExpenses ▂▁▁▂▃▄▃▄▄▄▄█▂▃▂▂▂▃98.56893.60196.34999.601110.568117.509113.356118.675117.288119.205119.88159.606103.787108.518107.11398.943101.528109.128
us-gaap:DisposalGroupNotDiscontinuedOperationGainLossOnDisposal ▁▁▁█▁▁▁▁▁▁▁▁▁▁▂▁▁▁0.0680.07414.974271.9010.02.5860.00.3560.00.02.9670.0-0.0350.023.2460.01.0887.323
us-gaap:GeneralAndAdministrativeExpense ▆▃▂▃▆▆▃▃▆█▁▂▄▆▃▁▂▇8.3566.5846.3157.0698.3438.5616.9396.9748.3999.8445.5935.9637.5238.7236.7415.8136.329.425
us-gaap:GrossProfit ▁▂▄▃▅▇█▇▆▆▅▄▄▄▄▃▃▄72.67574.09579.75677.10784.35588.17891.88989.25786.92986.51583.10982.1281.23979.85479.74577.73777.17379.839
us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest ▂▂▂█▂▂▂▂▂▂▅▁▂▃▄▂▂▂-0.166.98319.086276.1353.798.09116.846.826.2694.095122.975-43.26213.15644.84374.24818.2537.35921.371
 us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest us-gaap:ConsolidatedEntities srt:Subsidiaries▂▂▂█▂▂▂▂▂▂▅▁▂▃▄▂▂-0.166.98319.086276.1353.798.09116.846.826.2694.095122.975-43.26213.15644.84374.24818.2537.359NA
us-gaap:IncomeTaxExpenseBenefit ▆▆▆▆▄▆▅▆▆▆▇▆▆▆█▁▄▆0.0150.0190.00.002-0.230.004-0.0340.00.0170.0290.2650.00.020.1380.404-0.793-0.3390.1
us-gaap:IncomeTaxesPaidNet ▁▁▁▃▅▁▃▃█▁▁▄▁▁▁0.020.001-0.0310.2360.4820.0010.2160.2310.9380.00.00.405-0.0070.0070.0NANANA
us-gaap:InterestPaidNet ▆▁▆▁▇▂▁▃▆▂▅▂▆▂▅▂█▂26.85510.10627.7658.73930.03312.96110.05314.61327.59114.25123.9714.03626.14712.70524.88712.40834.57611.268
us-gaap:NetIncomeLoss ▂▂▂█▂▂▂▂▂▂▅▁▂▃▄▂▂▂-0.1676.92118.988274.5213.9968.02216.6766.7726.2054.009121.823-42.92313.00644.32973.13718.8767.65321.102
us-gaap:NetIncomeLossAttributableToNoncontrollingInterest ▂▂▃█▂▂▃▂▂▂▅▁▃▄▄▃▂▃-0.0080.0430.0981.6120.0240.0650.1070.0480.0470.0570.798-0.3390.130.3760.6250.170.0450.169
us-gaap:NetIncomeLossAvailableToCommonStockholdersBasic ▂▂▂█▂▂▂▂▂▂▅▁▂▃▄▂▂▂-0.2616.77518.895274.4283.9037.89116.6766.6796.1123.89121.823-43.00312.9244.21573.13718.8034.09219.278
 us-gaap:NetIncomeLossAvailableToCommonStockholdersBasic us-gaap:ConsolidatedEntities srt:Subsidiaries▂▂▂█▂▂▂▂▂▂▅▁▂▃▄▂▂-0.2686.81918.993276.0423.9177.94416.7726.7166.1463.913122.612-43.36213.02944.58673.75818.9614.129NA
us-gaap:NetIncomeLossAvailableToCommonStockholdersDiluted ▂▂▂█▂▂▂▂▂▂▅▁▂▃▄▂▂▂-0.2616.77518.895274.4283.9037.89116.6766.6796.1123.89121.823-43.00312.9244.21573.13718.8034.09219.278
us-gaap:OperatingIncomeLoss ▂▂▃█▂▂▂▂▂▂▂▁▂▂▂▂▂▂21.60229.23545.446298.40626.4730.16534.20227.26227.11325.69225.295-24.60829.99927.8426.23129.49526.26321.792
us-gaap:OtherComprehensiveIncomeLossNetOfTax ▆▆▆▆▅▁▆▅▃▄▂▆▆█▇▆▅▆1.0481.0981.1951.2280.226-7.8691.187-1.398-4.746-2.483-5.2371.0271.8715.0083.3320.626-1.081.3
us-gaap:ProfitLoss ▂▂▂█▂▂▂▂▂▂▅▁▂▃▄▂▂▂-0.1756.96419.086276.1334.028.08716.8746.826.2524.066122.71-43.26213.13644.70573.84419.0467.69821.271
 us-gaap:ProfitLoss us-gaap:ConsolidatedEntities srt:Subsidiaries▂▂▂█▂▂▂▂▂▂▅▁▂▃▄▂▂▂-0.1756.96419.086276.1334.028.08716.8746.826.2524.066122.71-43.26213.13644.70573.84419.0467.69821.271
 us-gaap:ProfitLoss us-gaap:ConsolidatedEntities,us-gaap:PartnerTypeOfPartnersCapitalAccount srt:Subsidiaries,us-gaap:GeneralPartner▁█-0.1746.965NA276.1354.018.075NA6.8096.2394.032122.701-43.54212.85544.773.8419.034NANA
 us-gaap:ProfitLoss us-gaap:ConsolidatedEntities,us-gaap:StatementEquityComponents srt:Subsidiaries,us-gaap:NoncontrollingInterest▄▄-0.001-0.001NA-0.0020.010.012NA0.0110.0130.0340.0090.020.0210.0050.0040.012NANA
 us-gaap:ProfitLoss us-gaap:EquityMethodInvestmentNonconsolidatedInvestee us-gaap:EquityMethodInvestmentNonconsolidatedInvesteeOrGroupOfInvestees▄▅▃▄▆▆▁█▆-8.918-7.897-10.905-9.281-4.493-4.322-16.423-0.046-3.797NANANANANANANANANA
 us-gaap:ProfitLoss us-gaap:StatementEquityComponents us-gaap:NoncontrollingInterest▁█-0.0080.043NA1.6120.0240.065NA0.0480.0470.0570.798-0.3420.1290.3760.6250.170.0450.169
 us-gaap:ProfitLoss us-gaap:StatementEquityComponents us-gaap:RetainedEarnings▁█-0.1676.921NA274.5213.9968.022NA6.7726.2054.009121.912-43.1812.74744.32973.21918.8767.65321.102
 us-gaap:RevenueFromContractWithCustomerIncludingAssessedTax us-gaap:ConsolidatedEntities,us-gaap:ProductOrService srt:Subsidiaries,bdn:ThirdPartyManagementRevenueNANANA4.3244.0614.9545.5854.9385.1483.9555.0264.9444.9137.674NANANANA
 us-gaap:RevenueFromContractWithCustomerIncludingAssessedTax us-gaap:ConsolidatedEntities,us-gaap:ProductOrService srt:Subsidiaries,us-gaap:RealEstateOtherNANANA0.5050.5960.931.9021.1651.2161.8431.4541.4191.9461.9251.431.5240.976NA
 us-gaap:RevenueFromContractWithCustomerIncludingAssessedTax us-gaap:ProductOrService bdn:ThirdPartyManagementRevenueNANANA4.3244.0614.9545.5854.9385.1483.9555.0264.9444.9137.674NANANANA
 us-gaap:RevenueFromContractWithCustomerIncludingAssessedTax us-gaap:ProductOrService us-gaap:RealEstateOtherNANANA0.5050.5960.931.9021.1651.2161.8431.4541.4191.9461.9251.431.5240.976NA
 us-gaap:RevenueFromContractWithCustomerIncludingAssessedTax us-gaap:ProductOrService,us-gaap:InvestmentSecondaryCategorization bdn:LeaseCommissionIncome,bdn:RealEstateVenture▁█0.61.3NA0.20.20.4NA0.30.30.2NA1.51.5NANANANANA
 us-gaap:RevenueFromContractWithCustomerIncludingAssessedTax us-gaap:ProductOrService,us-gaap:InvestmentSecondaryCategorization bdn:ManagementFees,bdn:RealEstateVenture▇▇▄▃▁▂▂▂▂▂█▄▃2.12.01.51.30.81.11.11.01.11.12.31.41.3NANANANANA
us-gaap:Revenues ▁▁▃▃▅▇██▇▇▆▅▅▅▄▃▃▄120.102120.769126.821126.106136.837145.088147.039145.331144.151143.896139.203134.998133.786136.358133.344128.438127.791130.92
  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 ▂▂▂▅▅▆▇▅▆██▃▅▆▅▁▁█3889.5583889.9133900.1063991.064022.774045.3424075.9694020.4324048.4744115.9294098.5213923.6223991.5194037.9363995.4483855.4193872.4494101.862
us-gaap:Liabilities ▂▁▁▃██▇▅▅▆▄▂▂▂▂▁▁▃2138.5052107.6592095.4582175.2782451.9212441.5282387.6662317.9952318.8092334.4372265.9482146.8192140.7442170.6952148.8482104.8492114.7262222.296
us-gaap:LiabilitiesAndStockholdersEquity ▂▂▂▅▅▆▇▅▆██▃▅▆▅▁▁█3889.5583889.9133900.1063991.064022.774045.3424075.9694020.4324048.4744115.9294098.5213923.6223991.5194037.9363995.4483855.4193872.4494101.862
us-gaap:StockholdersEquity ▅▆▆▇▁▂▄▄▅▆▇▆▇█▇▅▅█1740.3211771.8871794.1431805.1681560.6281593.5541677.8771690.7421717.8191769.351820.2531759.9791833.3651849.7031829.181733.7161740.821862.477
  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 ▂▂▂▃▂▂▃▁▂▁▁▃▄▇▇▁▂█47.7345.71746.34462.25644.81952.70290.49929.92531.57314.44922.84270.36108.304200.813202.17925.28737.9234.654
us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents ▂▂▂▂▂▂▃▁▁▁▁▃▄▆▆▁▃█48.51246.4847.07762.99545.47453.37491.1730.52131.9814.80323.21171.185109.167201.648203.44226.55271.13267.662
us-gaap:Land ▁▁▂▄▄██391.302391.344407.514437.617435.971485.42489.702NA487.209509.503508.363437.64497.517498.197492.197470.391462.743462.014
  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:FiniteLivedIntangibleAssetsNet ▁▁▂▂▂▄▄▅▆▇█▂▃▃▃▂▃▃39.72643.88348.5750.71555.26275.6784.85195.798109.365119.903131.34855.13959.41863.61464.97258.81759.4164.222
us-gaap:OperatingLeaseRightOfUseAsset ██████████▁20.64320.8120.97721.14521.31521.48521.65621.82822.00122.1750.0NANANA0.0NANANA
  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 ▂▁▁▃██▇▆▆▆▅▃▃▃▃▂▃▄1888.5911843.5931830.5951919.5112201.7552192.62144.4182078.2552096.5362094.7972028.0461937.5371938.7931940.0321930.8281889.641912.1722012.671
us-gaap:MinorityInterest ▁▁▁▁▁▁▁▂▃▃▃▇███▇▇█10.73210.36710.50510.61410.22110.2610.42611.69511.84612.14212.3216.82417.4117.53817.4216.85416.90317.089
us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearTwo NANA1.248NANANANANANANANANANANANANANANA
us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearThree NANA1.263NANANANANANANANANANANANANANANA
us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFour NANA1.305NANANANANANANANANANANANANANANA
us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFive NANA1.321NANANANANANANANANANANANANANANA
us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive NANA109.131NANANANANANANANANANANANANANANA
  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 ▅▆▆▇▁▂▄▄▅▆▇▆▇█▇▅▅█1740.3211771.8871794.1431805.1681560.6281593.5541677.8771690.7421717.8191769.351820.2531759.9791833.3651849.7031829.181733.7161740.821862.477
us-gaap:StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest ▅▆▆▇▁▂▄▄▅▆▇▆▇█▇▅▅█1751.0531782.2541804.6481815.7821570.8491603.8141688.3031702.4371729.6651781.4921832.5731776.8031850.7751867.2411846.61750.571757.7231879.566
us-gaap:CommonStockValue ▁▁▁▁▁▁▆▆▆▆▇████▅▅▅1.7091.7071.7071.7071.7071.711.7661.7631.7631.7611.771.7871.7871.7851.7841.7551.7541.752
us-gaap:AdditionalPaidInCapital ▁▁▁▁▁▁▄▄▄▄▅▆▆▆▆▃▃█3140.5753140.4563138.1523136.8513135.593140.1943192.1583189.353188.2393187.3123200.853223.8173223.0723222.0473218.5643167.4813165.9353262.459
us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax ▃▂▂▁▁▁▄▃▄▅▆██▇▅▄▄▄-5.427-6.469-7.561-8.749-9.97-10.195-2.37-3.55-2.162.565.02910.2399.2217.3652.399-0.906-1.528-0.457
 us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax us-gaap:ConsolidatedEntities srt:Subsidiaries▃▂▂▁▁▁▄▃▄▅▆██-5.789-6.837-7.935-9.13-10.358-10.584-2.715-3.902-2.5042.2424.7259.9628.935NA2.056NANANA
us-gaap:MinorityInterest ▁▁▁▁▁▁▁▂▃▃▃▇███▇▇█10.73210.36710.50510.61410.22110.2610.42611.69511.84612.14212.3216.82417.4117.53817.4216.85416.90317.089
us-gaap:MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders NANANA0.022NANANANANANA0.040.00.00.0540.002NANANA
 us-gaap:MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders us-gaap:ConsolidatedEntities srt:SubsidiariesNANANA0.022NANANANANANA0.040.00.00.0540.002NANANA
 us-gaap:MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders us-gaap:ConsolidatedEntities,us-gaap:StatementEquityComponents srt:Subsidiaries,us-gaap:NoncontrollingInterestNANANA0.022NANANANANANA0.040.00.00.0540.002NANANA
 us-gaap:MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders us-gaap:StatementEquityComponents us-gaap:NoncontrollingInterestNANANA0.022NANANANANANA0.040.00.00.0540.002NANANA
  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 ▃▄▆▆▅▄█▇▇▁▇▅▆▃▅▄▄▄37.9541.17663.34262.14455.26245.05878.9869.79467.6917.76672.81257.00658.83338.69854.23445.53541.98940.259
us-gaap:NetCashProvidedByUsedInInvestingActivities ▄▅▇█▄▄▃▅▅▄▄▃▁▅█▅▅▇-47.154-21.24942.31351.304-32.759-42.568-53.532-18.234-17.55-41.343-33.93-57.956-116.449-6.17162.256-7.3-6.99831.843
 us-gaap:NetCashProvidedByUsedInInvestingActivities us-gaap:ConsolidatedEntities srt:Subsidiaries▄▅▇█▄▄▃▅▅▄▄▃▁▅█▄-47.154-21.24942.31351.304-32.759-42.568-53.532-18.234-17.55-41.343-33.93-57.956-116.449-6.17162.256-39.307NANA
us-gaap:NetCashProvidedByUsedInFinancingActivities ▇▆▄▄▆▆▇▅▆▇▄▆▆▆█▅▁▆11.236-20.524-121.573-95.927-30.403-40.28635.201-53.019-32.96315.169-86.856-37.032-34.865-34.32160.402-50.848-231.745-31.367
us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect ▄▄▃▅▃▁█▄2.032-0.597-15.91817.521-7.9-37.79660.649-1.459NANANANANANANANANANA
  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:AmortizationOfFinancingCosts ▆▆▆▇▇██▆▅▅▃▃▃▃▃▁▂▃0.7090.7090.7090.7150.7310.7490.7420.6940.6660.6660.6260.6180.6270.6270.6280.5770.5960.634
us-gaap:IncreaseDecreaseInAccountsReceivable ▂▅▁▆▇▅▆▂▂▇▅▁▄▅▆█▄▅-3.4520.939-4.2321.9143.0011.3482.334-2.751-2.8743.5390.641-4.395-0.4160.6461.8214.581-1.0530.917
 us-gaap:IncreaseDecreaseInAccountsReceivable us-gaap:ConsolidatedEntities srt:Subsidiaries▂▅▁▆▇▅▆▂▂▇▅▁▄▅▆█-3.4520.939-4.2321.9143.0011.3482.334-2.751-2.8743.5390.641-4.395-0.4160.6461.8214.581NANA
us-gaap:NetCashProvidedByUsedInOperatingActivities ▃▄▆▆▅▄█▇▇▁▇▅▆▃▅▄▄▄37.9541.17663.34262.14455.26245.05878.9869.79467.6917.76672.81257.00658.83338.69854.23445.53541.98940.259
us-gaap:NetIncomeLoss ▂▂▂█▂▂▂▂▂▂▅▁▂▃▄▂▂▂-0.1676.92118.988274.5213.9968.02216.6766.7726.2054.009121.823-42.92313.00644.32973.13718.8767.65321.102
us-gaap:ProfitLoss ▂▂▂█▂▂▂▂▂▂▅▁▂▃▄▂▂▂-0.1756.96419.086276.1334.028.08716.8746.826.2524.066122.71-43.26213.13644.70573.84419.0467.69821.271
 us-gaap:ProfitLoss us-gaap:ConsolidatedEntities srt:Subsidiaries▂▂▂█▂▂▂▂▂▂▅▁▂▃▄▂▂▂-0.1756.96419.086276.1334.028.08716.8746.826.2524.066122.71-43.26213.13644.70573.84419.0467.69821.271
 us-gaap:ProfitLoss us-gaap:ConsolidatedEntities,us-gaap:PartnerTypeOfPartnersCapitalAccount srt:Subsidiaries,us-gaap:GeneralPartner▁█-0.1746.965NA276.1354.018.075NA6.8096.2394.032122.701-43.54212.85544.773.8419.034NANA
 us-gaap:ProfitLoss us-gaap:ConsolidatedEntities,us-gaap:StatementEquityComponents srt:Subsidiaries,us-gaap:NoncontrollingInterest▄▄-0.001-0.001NA-0.0020.010.012NA0.0110.0130.0340.0090.020.0210.0050.0040.012NANA
 us-gaap:ProfitLoss us-gaap:EquityMethodInvestmentNonconsolidatedInvestee us-gaap:EquityMethodInvestmentNonconsolidatedInvesteeOrGroupOfInvestees▄▅▃▄▆▆▁█▆-8.918-7.897-10.905-9.281-4.493-4.322-16.423-0.046-3.797NANANANANANANANANA
 us-gaap:ProfitLoss us-gaap:StatementEquityComponents us-gaap:NoncontrollingInterest▁█-0.0080.043NA1.6120.0240.065NA0.0480.0470.0570.798-0.3420.1290.3760.6250.170.0450.169
 us-gaap:ProfitLoss us-gaap:StatementEquityComponents us-gaap:RetainedEarnings▁█-0.1676.921NA274.5213.9968.022NA6.7726.2054.009121.912-43.1812.74744.32973.21918.8767.65321.102
us-gaap:ShareBasedCompensation ▄▆▂▂▅▅▂▂▄█▁▁▃█▁▁▁▇1.7182.6061.0831.0822.1132.3490.7311.011.6863.4490.5730.4711.4073.2650.5620.6160.5813.124
  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 ▄▅▇█▄▄▃▅▅▄▄▃▁▅█▅▅▇-47.154-21.24942.31351.304-32.759-42.568-53.532-18.234-17.55-41.343-33.93-57.956-116.449-6.17162.256-7.3-6.99831.843
 us-gaap:NetCashProvidedByUsedInInvestingActivities us-gaap:ConsolidatedEntities srt:Subsidiaries▄▅▇█▄▄▃▅▅▄▄▃▁▅█▄-47.154-21.24942.31351.304-32.759-42.568-53.532-18.234-17.55-41.343-33.93-57.956-116.449-6.17162.256-39.307NANA
us-gaap:PaymentsToAcquireRealEstate NANA30.5180.00.011.4320.00.00.00.0156.3850.015.29424.94637.77534.7480.00.0
 us-gaap:PaymentsToAcquireRealEstate us-gaap:ConsolidatedEntities srt:SubsidiariesNANA30.5180.00.011.4320.00.00.00.0156.3850.015.29424.94637.77534.748NANA
 us-gaap:PaymentsToAcquireRealEstate us-gaap:MortgageLoansOnRealEstateDescriptionTypeOfProperty,us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName srt:OfficeBuilding,bdn:A150511RaceStreetNANANANANANANANANANANANANANANANANANA
 us-gaap:PaymentsToAcquireRealEstate us-gaap:MortgageLoansOnRealEstateDescriptionTypeOfProperty,us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName srt:OfficeBuilding,bdn:A250KingOfPrussiaRoadNANANANANANANANANANANANANANANANANANA
  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 ▇▆▄▄▆▆▇▅▆▇▄▆▆▆█▅▁▆11.236-20.524-121.573-95.927-30.403-40.28635.201-53.019-32.96315.169-86.856-37.032-34.865-34.32160.402-50.848-231.745-31.367
 us-gaap:RepaymentsOfLongTermDebt bdn:PropertyLocation bdn:FourTowerBridgeNANANANANANANANANANANANANANANANANANA
 us-gaap:RepaymentsOfLongTermDebt bdn:PropertyLocation,us-gaap:LongtermDebtType bdn:TwoLoganSquare,us-gaap:SecuredDebtNANANANANANANANANANANANANANANANANANA
 us-gaap:RepaymentsOfLongTermDebt bdn:PropertyLocation,us-gaap:LongtermDebtType,us-gaap:SubsequentEventType bdn:TwoLoganSquare,us-gaap:SecuredDebt,us-gaap:SubsequentEventNANANANANANANANANANANANANANANANANANA
 us-gaap:RepaymentsOfLongTermDebt us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName,us-gaap:LongtermDebtType bdn:TwoLoganSquare,us-gaap:SecuredDebtNANANANANANANANANANANANANANANANANANA
us-gaap:PaymentsForRepurchaseOfCommonStock NANA0.00.06.14353.8570.00.00.017.28221.8410.00.00.0NANANANA
 us-gaap:PaymentsForRepurchaseOfCommonStock us-gaap:ConsolidatedEntities srt:SubsidiariesNANA0.00.06.14353.8570.00.00.017.28221.8410.00.00.0NANANANA
  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:DebtInstrumentInterestRateStatedPercentage us-gaap:DebtInstrument,us-gaap:LongtermDebtType bdn:Note2023,us-gaap:UnsecuredDebt▄▄▄3.95e-063.95e-063.95e-06NANANANANA3.95e-083.95e-083.95e-08NANANANANANANA
 us-gaap:DebtInstrumentInterestRateStatedPercentage us-gaap:DebtInstrument,us-gaap:LongtermDebtType bdn:Note2024,us-gaap:UnsecuredDebt▄▄▄4.1e-064.1e-064.1e-06NANANANANA4.1e-084.1e-084.1e-08NANANANANANANA
 us-gaap:DebtInstrumentInterestRateStatedPercentage us-gaap:DebtInstrument,us-gaap:LongtermDebtType bdn:Note2027,us-gaap:UnsecuredDebt▄▄▄3.95e-063.95e-063.95e-06NANANANANA3.95e-083.95e-083.95e-08NANANANANANANA
 us-gaap:DebtInstrumentInterestRateStatedPercentage us-gaap:DebtInstrument,us-gaap:LongtermDebtType bdn:Note2029,us-gaap:UnsecuredDebt▄▄▄4.55e-064.55e-064.55e-06NANANANANA4.55e-084.55e-084.55e-08NANANANANANANA
 us-gaap:DebtInstrumentInterestRateStatedPercentage us-gaap:Range,us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName,us-gaap:DebtInstrument srt:Maximum,bdn:MidAtlanticOfficeVenture,bdn:MidAtlanticOfficeJVLoanNANANANANANANANANANANANANANANANANANA

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
Value1709000.01707000.01707000.01707000.01707000.01710000.01766000.01763000.01763000.01761000.01770000.01787000.01787000.01785000.01784000.01755000.01754000.01752000.01752000.01752000.01751000.01749000.01747000.01752000.01799000.01798000.01793000.01790000.01571000.01567000.01566000.01565000.01565000.01435000.01434000.01432000.01431000.01428000.01424000.01353000.01353000.01345000.01343000.01286000.0
Percentage of CommonStockValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
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 End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-09-302012-06-302012-03-312011-09-302011-06-302011-03-312010-09-302010-06-302010-03-31
Value170171171170176176176176178179179176176176176175175178180180173157156157156143144143142136135134132131128
Percentage of WeightedAverageNumberOfDilutedSharesOutstanding100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding us-gaap:ConsolidatedEntities

srt:Subsidiaries


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
Value171172172171177177177177180181181178178
Percentage of WeightedAverageNumberOfDilutedSharesOutstanding100.6100.6100.6100.6100.6100.6100.6100.6100.8100.8100.8100.8100.8

Weighted Average Number Of Shares Outstanding Basic

us-gaap:WeightedAverageNumberOfSharesOutstandingBasic

us-gaap:WeightedAverageNumberOfSharesOutstandingBasic


Weighted
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-09-302012-06-302012-03-312011-09-302011-06-302011-03-312010-09-302010-06-302010-03-31
Value170170170170176176176175178178178175175175175175174178179179171157156156155143143143142135135134132131128
Percentage of WeightedAverageNumberOfSharesOutstandingBasic100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:WeightedAverageNumberOfSharesOutstandingBasic us-gaap:ConsolidatedEntities

srt:Subsidiaries


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
Value171171171171177177177176180180179176176
Percentage of WeightedAverageNumberOfSharesOutstandingBasic100.6100.6100.6100.6100.6100.6100.6100.6100.8100.8100.8100.8100.8

Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount

us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecurities

us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount

bdn:RedeemableCommonLimitedPartnershipUnits


Antidilutive
Period End2021-03-312020-03-312019-03-312018-03-312017-03-312016-03-312015-03-31
Value981630.0981630.0982870.01479800.01479800.01535100.01535100.0
Percentage of AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount100.0100.0100.0100.0100.0100.0100.0

Earnings Per Share Basic

us-gaap:EarningsPerShareBasic

us-gaap:EarningsPerShareBasic


Earnings
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value00.040.111.610.020.040.090.040.030.020.68-0.240.070.250.420.110.020.11-0.080.03-0.020.25-0.370.10.010.04-0.020.040-0.030.120.060.030.01-0.210.10.010.05-0.050.03-0.06-0.02-0.05-0.06-0.06-0.02
Percentage of EarningsPerShareBasic0.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:EarningsPerShareBasic us-gaap:ConsolidatedEntities

srt:Subsidiaries


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
Value00.040.111.610.020.040.090.040.030.020.68-0.240.070.250.420.110.020.11
Percentage of EarningsPerShareBasic0.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Earnings Per Share Diluted

us-gaap:EarningsPerShareDiluted

us-gaap:EarningsPerShareDiluted


Earnings
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value00.040.111.60.020.040.090.040.030.020.68-0.240.070.250.410.110.020.11-0.080.03-0.020.25-0.370.10.010.04-0.020.040-0.030.120.060.030.01-0.210.10.010.05-0.050.03-0.06-0.02-0.05-0.06-0.06-0.02
Percentage of EarningsPerShareDiluted0.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:EarningsPerShareDiluted us-gaap:ConsolidatedEntities

srt:Subsidiaries


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
Value00.040.111.60.020.040.090.040.030.020.68-0.240.070.250.410.110.020.11
Percentage of EarningsPerShareDiluted0.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Allocated Share Based Compensation Expense

us-gaap:AllocatedShareBasedCompensationExpense us-gaap:AwardType

us-gaap:AllocatedShareBasedCompensationExpense

bdn:RestrictedPerformanceShareUnitsPlan


Allocated
Period End2021-03-312020-03-312019-03-312018-03-312017-03-312016-03-312015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-30
Value800000.0600000.02700000.02600000.02400000.01700000.02400000.03200000.0500000.0500000.01700000.04400000.01300000.01300000.01200000.01700000.0700000.0700000.0600000.0500000.0500000.0
Percentage of AllocatedShareBasedCompensationExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues0.70.41.91.91.80.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of Revenues bdn:RestrictedPerformanceShareUnitsPlan0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:RestrictedStock


Allocated
Period End2021-03-312020-03-312019-03-312018-03-312017-03-312016-03-312015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-30
Value2300000.01900000.01600000.01500000.01500000.01200000.01300000.0400000.0400000.0500000.01400000.0600000.0900000.0900000.0900000.01100000.0800000.0800000.0700000.0800000.0800000.0
Percentage of AllocatedShareBasedCompensationExpense287.5316.759.357.762.570.654.212.580.0100.082.413.669.269.275.064.7114.3114.3116.7160.0160.0
Percentage of Revenues1.91.31.11.11.10.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of Revenues us-gaap:RestrictedStock0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Comprehensive Income Net Of Tax

us-gaap:ComprehensiveIncomeNetOfTax

us-gaap:ComprehensiveIncomeNetOfTax


Comprehensive
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value0.8758.013202754.2210.197175.3821.4851.54116-41.905144976196.582221.05210-4.79936-58.842174.5955.953-3.72812-0.007-3.123239.759165.76-21.72512-3.6749.276-7.8956.299-6.019-1.018-3.976-4.198-3.0721.415
Percentage of ComprehensiveIncomeNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues0.76.615.9218.73.10.112.23.71.01.183.8-31.011.136.257.415.25.217.10.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:ComprehensiveIncomeNetOfTax us-gaap:ConsolidatedEntities

srt:Subsidiaries


Comprehensive
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value0.8748.063202774.2360.206185.4111.4931.549117-42.255144977196.61
Percentage of ComprehensiveIncomeNetOfTax99.9100.6100.5100.6100.4104.6100.6100.5100.5100.6100.7100.8100.8100.8100.8100.8100.4
Percentage of Revenues0.76.716.0219.93.10.112.33.71.01.184.4-31.311.236.557.915.35.2
Percentage of Revenues srt:Subsidiaries0.76.70.0219.93.10.112.33.71.01.184.4-31.311.236.557.915.35.2

Comprehensive Income Net Of Tax Attributable To Noncontrolling Interest

us-gaap:ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest

us-gaap:ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest


Comprehensive
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value-2000.049000.0105000.01619000.025000.021000.0114000.040000.021000.043000.0771000.0-330000.0145000.0418000.0652000.0174000.036000.0181000.0-1000.081000.0-51000.0309000.0-531000.0136000.015000.036000.0-106000.0141000.0-44000.0-42000.0252000.091000.0169000.052000.0-419000.0186000.0-163000.0135000.0-566000.0365000.0-164000.0-63000.0-124000.0-131000.0-159000.0-13000.0
Percentage of ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues-0.00.00.11.30.00.00.10.00.00.00.6-0.20.10.30.50.10.00.10.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest us-gaap:ConsolidatedEntities

srt:Subsidiaries


Comprehensive
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value-1000.0-1000.00-2000.010000.012000.011000.011000.013000.034000.09000.020000.021000.05000.04000.012000.08000.0
Percentage of ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest50.0-2.00.0-0.140.057.19.627.561.979.11.2-6.114.51.20.66.922.2
Percentage of Revenues-0.0-0.00.0-0.00.00.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of Revenues srt:Subsidiaries-0.0-0.00.0-0.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest

us-gaap:ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest

us-gaap:ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest


Comprehensive
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value0.8738.062202774.2460.218185.4221.5061.583117-42.235154977196.618221.05110-4.8537-59.373174.615.989-3.83412-0.051-3.165239.85165.812-22.14413-3.8379.411-8.4616.664-6.183-1.081-4.1-4.329-3.2311.402
Percentage of ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues0.76.716.0219.93.10.212.33.71.01.184.4-31.311.236.557.915.35.217.20.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest us-gaap:ConsolidatedEntities

srt:Subsidiaries


Comprehensive
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value0.8738.062202774.2460.218185.4221.5061.583117-42.235154977196.618
Percentage of ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues0.76.716.0219.93.10.212.33.71.01.184.4-31.311.236.557.915.35.2
Percentage of Revenues srt:Subsidiaries0.76.70.0219.93.10.212.33.71.01.184.4-31.311.236.557.915.35.2

Cost Of Goods And Services Sold

us-gaap:CostOfGoodsAndServicesSold

us-gaap:CostOfGoodsAndServicesSold


Cost
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
Value474647485256555657575652525653505051535150546258566059575761555655555656535557575660585752
Percentage of CostOfGoodsAndServicesSold100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues39.538.637.138.938.439.237.538.639.739.940.339.239.341.440.239.539.639.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:CostOfGoodsAndServicesSold us-gaap:ConsolidationItems

us-gaap:CorporateNonSegment


Cost
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-31
Value2.9992.3681.6531.7821.1861.6842.1721.6421.5281.7991.2781.6361.6381.9661.8381.7692.7380.8481.612.7391.1130.6080.1440.3860.5960.415
Percentage of CostOfGoodsAndServicesSold6.35.13.53.62.33.03.92.92.73.12.33.13.13.53.43.55.41.73.05.32.21.10.20.71.10.7
Percentage of Revenues2.52.01.31.40.91.21.51.11.11.30.91.21.21.41.41.42.10.60.00.00.00.00.00.00.00.0
Percentage of Revenues us-gaap:CorporateNonSegment68.563.30.0284.7116.0177.40.0132.197.3179.40.0204.8177.7150.10.073.5109.00.00.00.00.00.00.00.00.00.0

us-gaap:CostOfGoodsAndServicesSold us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments

us-gaap:OperatingSegments, bdn:AustinTexas


Cost
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-30
Value9.9629.729.7279.9449.94310109.3029.8049.0765.9273.8943.3953.5233.8223.9294.1323.5733.5333.5232.9113.2553.0172.6251.4980.870.8610.5690.617
Percentage of CostOfGoodsAndServicesSold21.020.820.720.318.917.818.316.617.115.810.67.46.56.27.17.78.27.06.66.95.85.94.84.52.71.41.51.01.1
Percentage of Revenues8.38.07.77.97.37.06.96.46.86.34.32.92.52.62.93.13.22.70.00.00.00.00.00.00.00.00.00.00.0
Percentage of Revenues us-gaap:OperatingSegments bdn:AustinTexas39.037.10.039.339.838.20.035.437.436.60.045.140.142.10.049.847.20.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:OperatingSegments, bdn:MetropolitanDC


Cost
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-31
Value3.9024.1995.1135.2364.935.5124.9135.9996.3396.2048.3738.5488.3928.7598.6678.58.4649.3839.4699.98.7681011101011
Percentage of CostOfGoodsAndServicesSold8.29.010.910.79.49.78.910.711.110.814.916.216.015.516.216.816.718.417.819.317.519.917.818.418.719.5
Percentage of Revenues3.23.54.04.23.63.83.34.14.44.36.06.36.36.46.56.66.67.20.00.00.00.00.00.00.00.0
Percentage of Revenues us-gaap:OperatingSegments bdn:MetropolitanDC81.189.80.054.148.951.30.045.546.445.90.037.636.238.00.036.837.20.00.00.00.00.00.00.00.00.0

us-gaap:OperatingSegments, bdn:PennsylvaniaSuburbs


Cost
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-31
Value9.77710111111121011111212111212121111121211121316141214
Percentage of CostOfGoodsAndServicesSold20.622.924.022.721.322.319.920.820.622.622.022.623.122.922.623.422.224.623.021.925.024.025.723.922.824.0
Percentage of Revenues8.18.98.98.88.28.77.48.08.29.08.98.89.19.59.19.28.89.60.00.00.00.00.00.00.00.0
Percentage of Revenues us-gaap:OperatingSegments bdn:PennsylvaniaSuburbs32.333.70.032.232.234.00.033.534.436.40.034.435.337.20.034.032.00.00.00.00.00.00.00.00.00.0

us-gaap:OperatingSegments, bdn:PhiladelphiaCBD


Cost
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-31
Value1817161822242424252525242424242221202019191920181918
Percentage of CostOfGoodsAndServicesSold38.537.335.937.843.642.545.244.244.343.946.246.247.243.145.743.442.440.838.837.239.435.233.332.034.530.3
Percentage of Revenues15.214.413.314.716.716.716.917.017.617.518.618.118.517.818.417.116.815.90.00.00.00.00.00.00.00.0
Percentage of Revenues us-gaap:OperatingSegments bdn:PhiladelphiaCBD35.534.00.035.236.536.70.037.539.038.30.038.039.038.90.039.039.40.00.00.00.00.00.00.00.00.0

us-gaap:OperatingSegments, us-gaap:AllOtherSegments


Cost
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-31
Value2.5282.2822.3812.3742.3672.6932.1022.6912.392.1452.2872.4362.24.9652.6662.6472.583.8565.6914.8375.0747.60211121114
Percentage of CostOfGoodsAndServicesSold5.34.95.14.84.54.73.84.84.23.74.14.64.28.85.05.25.17.510.79.410.113.918.220.620.224.0
Percentage of Revenues2.11.91.91.91.71.91.41.91.71.51.61.81.63.62.02.12.02.90.00.00.00.00.00.00.00.0
Percentage of Revenues us-gaap:OperatingSegments us-gaap:AllOtherSegments69.071.00.074.570.073.70.072.669.067.40.065.765.980.90.070.562.00.00.00.00.00.00.00.00.00.0

Costs And Expenses

us-gaap:CostsAndExpenses

us-gaap:CostsAndExpenses


Costs
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-31
Value9893969911011711311811711911915910310810798101109133103108120208123114122
Percentage of CostsAndExpenses100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues82.177.576.079.080.881.077.181.781.482.886.1118.277.679.680.377.079.483.40.00.00.00.00.00.00.00.0

us-gaap:CostsAndExpenses us-gaap:ConsolidatedEntities

srt:Subsidiaries


Costs
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value9893969911011711311811711911915910310810798101
Percentage of CostsAndExpenses100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.3
Percentage of Revenues82.177.576.079.080.881.077.181.781.482.886.1118.277.679.680.377.079.7
Percentage of Revenues srt:Subsidiaries82.177.50.079.080.881.077.181.781.482.886.1118.277.679.680.377.079.7

us-gaap:CostsAndExpenses us-gaap:EquityMethodInvestmentNonconsolidatedInvestee

us-gaap:EquityMethodInvestmentNonconsolidatedInvesteeOrGroupOfInvestees


Costs
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-30
Value282825231817171717
Percentage of CostsAndExpenses29.031.027.024.016.315.315.715.114.8
Percentage of Revenues23.824.020.518.913.212.412.112.312.0
Percentage of Revenues us-gaap:EquityMethodInvestmentNonconsolidatedInvesteeOrGroupOfInvestees53.854.30.055.457.557.70.054.652.1

Disposal Group Not Discontinued Operation Gain Loss On Disposal

us-gaap:DisposalGroupNotDiscontinuedOperationGainLossOnDisposal

us-gaap:DisposalGroupNotDiscontinuedOperationGainLossOnDisposal


Disposal
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-30
Value0.0680.074142710.02.5860.00.3560.00.02.9670.0-0.0350.0230.01.0887.3232.358-0.104-0.7271153.8236.0831.5719.0190.2034.6980.00.00.00.0
Percentage of DisposalGroupNotDiscontinuedOperationGainLossOnDisposal100.0100.0100.0100.00.0100.00.0100.00.00.0100.00.0100.00.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.00.00.0
Percentage of Revenues0.10.111.8215.60.01.80.00.20.00.02.10.0-0.00.017.40.00.95.60.00.00.00.00.00.00.00.00.00.00.00.00.00.0

General And Administrative Expense

us-gaap:GeneralAndAdministrativeExpense

us-gaap:GeneralAndAdministrativeExpense


General
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value8.3566.5846.3157.0698.3438.5616.9396.9748.3999.8445.5935.9637.5238.7236.7415.8136.329.4255.8855.5156.0769.127.8526.1276.7918.6366.6935.96.0058.1817.3066.4367.3356.5517.2046.086.0796.056.2916.1775.896.2444.8085.7536.6536.092
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 Revenues7.05.55.05.66.15.94.74.85.86.84.04.45.66.45.14.54.97.20.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:GeneralAndAdministrativeExpense us-gaap:ConsolidatedEntities

srt:Subsidiaries


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
Value8.3566.5846.3157.0698.3438.5616.9396.9748.3999.8445.5935.9637.5238.7236.7415.8136.659
Percentage of GeneralAndAdministrativeExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0105.4
Percentage of Revenues7.05.55.05.66.15.94.74.85.86.84.04.45.66.45.14.55.2
Percentage of Revenues srt:Subsidiaries7.05.50.05.66.15.94.74.85.86.84.04.45.66.45.14.55.2

Gross Profit

us-gaap:GrossProfit

us-gaap:GrossProfit


Gross
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
Value727479778488918986868382817979777779787876819193898988899290828785858684848684888883838482
Percentage of GrossProfit100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues60.561.462.961.161.660.862.561.460.360.159.760.860.758.659.860.560.461.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:GrossProfit us-gaap:ConsolidationItems

us-gaap:CorporateNonSegment


Gross
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-31
Value1.3771.3710.287-1.156-0.164-0.735-0.638-0.3990.043-0.796-0.69-0.837-0.716-0.6560.6370.639-0.2271.1210.967-1.0550.6810.4921.8630.0940.0621.007
Percentage of GrossProfit1.91.90.4-1.5-0.2-0.8-0.7-0.40.0-0.9-0.8-1.0-0.9-0.80.80.8-0.31.41.2-1.30.90.62.00.10.11.1
Percentage of Revenues1.11.10.2-0.9-0.1-0.5-0.4-0.30.0-0.6-0.5-0.6-0.5-0.50.50.5-0.20.90.00.00.00.00.00.00.00.0
Percentage of Revenues us-gaap:CorporateNonSegment31.536.70.0-184.7-16.0-77.40.0-32.12.7-79.40.0-104.8-77.7-50.10.026.5-9.00.00.00.00.00.00.00.00.00.0

us-gaap:GrossProfit us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments

us-gaap:OperatingSegments, bdn:AustinTexas


Gross
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-30
Value151616151516161616157.2644.7475.0744.8414.7073.9574.6315.555.9295.2034.9395.2925.8945.9081.0350.0640.8490.2740.359
Percentage of GrossProfit21.422.220.520.017.918.618.319.018.818.18.75.86.26.15.95.16.07.07.56.66.46.56.46.31.20.11.00.30.4
Percentage of Revenues12.913.612.912.211.011.311.411.711.410.95.23.53.83.63.53.13.64.20.00.00.00.00.00.00.00.00.00.00.0
Percentage of Revenues us-gaap:OperatingSegments bdn:AustinTexas61.062.90.060.760.261.80.064.662.663.40.054.959.957.90.050.252.80.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:OperatingSegments, bdn:MetropolitanDC


Gross
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-31
Value0.910.4764.594.4395.1615.2426.2137.187.3347.31612141414141414131314161617161615
Percentage of GrossProfit1.30.65.85.86.15.96.88.08.48.515.517.318.217.917.818.818.517.517.018.321.520.119.217.918.417.3
Percentage of Revenues0.80.43.63.53.83.64.24.95.15.19.310.511.110.510.611.411.210.70.00.00.00.00.00.00.00.0
Percentage of Revenues us-gaap:OperatingSegments bdn:MetropolitanDC18.910.20.045.951.148.70.054.553.654.10.062.463.862.00.063.262.80.00.00.00.00.00.00.00.00.0

us-gaap:OperatingSegments, bdn:PennsylvaniaSuburbs


Gross
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-31
Value2021232323242523222221222221222323232424222323252625
Percentage of GrossProfit28.228.429.830.527.927.927.625.925.926.226.427.827.327.427.629.631.028.930.631.329.329.326.227.129.328.2
Percentage of Revenues17.117.418.718.617.216.917.315.915.615.715.816.916.616.116.517.918.717.60.00.00.00.00.00.00.00.0
Percentage of Revenues us-gaap:OperatingSegments bdn:PennsylvaniaSuburbs67.766.30.067.867.866.00.066.565.663.60.065.664.762.80.066.068.00.00.00.00.00.00.00.00.00.0

us-gaap:OperatingSegments, bdn:PhiladelphiaCBD


Gross
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-31
Value3333333439414241394040393838363432333131283030333234
Percentage of GrossProfit45.745.642.544.247.147.345.746.345.646.948.548.647.747.946.244.342.742.139.440.436.837.233.835.636.938.6
Percentage of Revenues27.628.026.827.129.128.828.628.427.528.229.029.628.928.127.626.825.825.70.00.00.00.00.00.00.00.0
Percentage of Revenues us-gaap:OperatingSegments bdn:PhiladelphiaCBD64.566.00.064.863.563.30.062.561.061.70.062.061.061.10.061.060.60.00.00.00.00.00.00.00.00.0

us-gaap:OperatingSegments, us-gaap:AllOtherSegments


Gross
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-31
Value1.1340.9310.8670.8141.0140.9592.1041.0151.0741.0371.2831.2711.1391.1761.4071.1051.582.5063.343.6893.9885.13811121213
Percentage of GrossProfit1.61.31.11.11.21.12.31.11.21.21.51.51.41.51.81.42.03.14.24.75.26.312.313.014.214.7
Percentage of Revenues0.90.80.70.60.70.71.40.70.70.70.90.90.90.91.10.91.21.90.00.00.00.00.00.00.00.0
Percentage of Revenues us-gaap:OperatingSegments us-gaap:AllOtherSegments31.029.00.025.530.026.30.027.431.032.60.034.334.119.10.029.538.00.00.00.00.00.00.00.00.00.0

Income Loss From Continuing Operations Attributable To Noncontrolling Entity

us-gaap:IncomeLossFromContinuingOperationsAttributableToNoncontrollingEntity us-gaap:ConsolidatedEntities

us-gaap:IncomeLossFromContinuingOperationsAttributableToNoncontrollingEntity

srt:Subsidiaries


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
Value-0.001-0.0010.0-0.0020.010.0120.0110.0110.0130.0340.0090.020.0210.0050.0040.0120.008
Percentage of IncomeLossFromContinuingOperationsAttributableToNoncontrollingEntity100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues-0.0-0.00.0-0.00.00.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of Revenues srt:Subsidiaries-0.0-0.00.0-0.00.00.00.00.00.00.00.00.00.00.00.00.00.0

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

us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest

us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest


Income
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-30
Value-0.166.983192763.798.091166.826.2694.095122-43.262134474187.35921-12.377.884
Percentage of IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues-0.15.815.0219.02.85.611.54.74.32.888.3-32.09.832.955.714.25.816.30.00.0

us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest us-gaap:ConsolidatedEntities

srt:Subsidiaries


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
Value-0.166.983192763.798.091166.826.2694.095122-43.262134474187.359
Percentage of IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues-0.15.815.0219.02.85.611.54.74.32.888.3-32.09.832.955.714.25.8
Percentage of Revenues srt:Subsidiaries-0.15.80.0219.02.85.611.54.74.32.888.3-32.09.832.955.714.25.8

Income Tax Expense Benefit

us-gaap:IncomeTaxExpenseBenefit

us-gaap:IncomeTaxExpenseBenefit


Income
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-30
Value15000.019000.002000.0-230000.04000.0-34000.0017000.029000.0265000.0020000.0138000.0404000.0-793000.0-339000.0100000.000
Percentage of IncomeTaxExpenseBenefit100.0100.00.0100.0100.0100.0100.00.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.00.00.0
Percentage of Revenues0.00.00.00.0-0.20.0-0.00.00.00.00.20.00.00.10.3-0.6-0.30.10.00.0

us-gaap:IncomeTaxExpenseBenefit us-gaap:ConsolidatedEntities

srt:Subsidiaries


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
Value15000.019000.002000.0-230000.04000.0-34000.0017000.029000.0265000.0020000.0138000.0404000.0-793000.0-339000.0
Percentage of IncomeTaxExpenseBenefit100.0100.00.0100.0100.0100.0100.00.0100.0100.0100.00.0100.0100.0100.0100.0100.0
Percentage of Revenues0.00.00.00.0-0.20.0-0.00.00.00.00.20.00.00.10.3-0.6-0.3
Percentage of Revenues srt:Subsidiaries0.00.00.00.0-0.20.0-0.00.00.00.00.20.00.00.10.3-0.6-0.3

Income Taxes Paid Net

us-gaap:IncomeTaxesPaidNet

us-gaap:IncomeTaxesPaidNet


Income
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-31
Value20000.01000.0-31000.0236000.0482000.01000.0216000.0231000.0938000.000405000.0-7000.07000.00
Percentage of IncomeTaxesPaidNet100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.0100.0100.0100.00.0
Percentage of Revenues0.00.0-0.00.20.40.00.10.20.70.00.00.3-0.00.00.0

us-gaap:IncomeTaxesPaidNet us-gaap:ConsolidatedEntities

srt:Subsidiaries


Income
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-31
Value20000.01000.0-31000.0236000.0482000.01000.0216000.0231000.0938000.000405000.0-7000.07000.00
Percentage of IncomeTaxesPaidNet100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.0100.0100.0100.00.0
Percentage of Revenues0.00.0-0.00.20.40.00.10.20.70.00.00.3-0.00.00.0
Percentage of Revenues srt:Subsidiaries0.00.00.00.20.40.00.10.20.70.00.00.3-0.00.00.0

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
Value2610278.7393012101427142314261224123411331138134417451836254719428.68456115414591057105214495.6746613
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 Revenues22.48.421.96.921.98.96.810.119.19.917.210.419.59.318.79.727.18.60.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:InterestPaidNet us-gaap:ConsolidatedEntities

srt:Subsidiaries


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
Value2610278.739301210142714231426122412
Percentage of InterestPaidNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues22.48.421.96.921.98.96.810.119.19.917.210.419.59.318.79.7
Percentage of Revenues srt:Subsidiaries22.48.40.06.921.98.96.810.119.19.917.210.419.59.318.79.7

Net Income Loss

us-gaap:NetIncomeLoss

us-gaap:NetIncomeLoss


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value-0.1676.921182743.9968.022166.7726.2054.009121-42.923134473187.65321-14.0587.826-1.30145-63.941203.0568.536-3.5858.7742.193-2.21318107.1183.891-30.832166.7719.202-4.246.249-6.069-0.439-4.848-6.437-5.441-0.348
Percentage of NetIncomeLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues-0.15.715.0217.72.95.511.34.74.32.887.5-31.89.732.554.814.76.016.10.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Net Income Loss Attributable To Noncontrolling Interest

us-gaap:NetIncomeLossAttributableToNoncontrollingInterest

us-gaap:NetIncomeLossAttributableToNoncontrollingInterest


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value-8000.043000.098000.01612000.024000.065000.0107000.048000.047000.057000.0798000.0-339000.0130000.0376000.0625000.0170000.045000.0169000.0-115000.058000.0-22000.0389000.0-560000.0161000.02000.058000.0-90000.0108000.0-19000.0-32000.0217000.0105000.062000.028000.0-491000.0260000.031000.0134000.0-362000.0362000.0-165000.0-51000.0-143000.0-179000.0-159000.0-51000.0
Percentage of NetIncomeLossAttributableToNoncontrollingInterest100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues-0.00.00.11.30.00.00.10.00.00.00.6-0.30.10.30.50.10.00.10.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

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
Value-0.2616.775182743.9037.891166.6796.1123.89121-43.003124473184.09219-14.0586.022-3.10544-63.941181.2556.71-3.5856.9670.385-4.041189.1735.3082.058-30.832131.5377.108-6.3594.13-8.188-2.579-6.974-8.563-7.567-2.474
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 Revenues-0.25.614.9217.62.95.411.34.64.22.787.5-31.99.732.454.814.63.214.70.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:NetIncomeLossAvailableToCommonStockholdersBasic us-gaap:ConsolidatedEntities

srt:Subsidiaries


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
Value-0.2686.819182763.9177.944166.7166.1463.913122-43.362134473184.129
Percentage of NetIncomeLossAvailableToCommonStockholdersBasic102.7100.6100.5100.6100.4100.7100.6100.6100.6100.6100.6100.8100.8100.8100.8100.8100.9
Percentage of Revenues-0.25.615.0218.92.95.511.44.64.32.788.1-32.19.732.755.314.83.2
Percentage of Revenues srt:Subsidiaries-0.25.60.0218.92.95.511.44.64.32.788.1-32.19.732.755.314.83.2

Net Income Loss Available To Common Stockholders Diluted

us-gaap:NetIncomeLossAvailableToCommonStockholdersDiluted

us-gaap:NetIncomeLossAvailableToCommonStockholdersDiluted


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
Value-0.2616.775182743.9037.891166.6796.1123.89121-43.003124473184.09219-14.0586.022-3.10544-63.941181.2556.71-3.5856.9670.385-4.041189.1735.3082.058-30.832131.5377.108-6.3594.13-8.188-2.579-6.974-8.563-7.567
Percentage of NetIncomeLossAvailableToCommonStockholdersDiluted100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues-0.25.614.9217.62.95.411.34.64.22.787.5-31.99.732.454.814.63.214.70.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Operating Income Loss

us-gaap:OperatingIncomeLoss

us-gaap:OperatingIncomeLoss


Operating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value21294529826303427272525-24.608292726292621-1.322251816-57.1642931293130342927302928302928292427242824262424
Percentage of OperatingIncomeLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues18.024.235.8236.619.320.823.318.818.817.918.2-18.222.420.419.723.020.616.60.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:OperatingIncomeLoss us-gaap:ConsolidatedEntities

srt:Subsidiaries


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
Value21294529826303427272525-24.6082927582925
Percentage of OperatingIncomeLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.1224.3100.098.7
Percentage of Revenues18.024.235.8236.619.320.823.318.818.817.918.2-18.222.420.444.123.020.3
Percentage of Revenues srt:Subsidiaries18.024.20.0236.619.320.823.318.818.817.918.2-18.222.420.444.123.020.3

Other Comprehensive Income Loss Net Of Tax

us-gaap:OtherComprehensiveIncomeLossNetOfTax

us-gaap:OtherComprehensiveIncomeLossNetOfTax


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-30
Value1.0481.0981.1951.2280.226-7.8691.187-1.398-4.746-2.483-5.2371.0271.8715.0083.3320.626-1.081.3132.74-3.527-9.1593.327-2.8641.552-2.605-1.9653.48-2.225-0.922.865-1.2389.5571.8934.554-4.081-10.6390.075-3.8590.053
Percentage of OtherComprehensiveIncomeLossNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues0.90.90.91.00.2-5.40.8-1.0-3.3-1.7-3.80.81.43.72.50.5-0.81.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:OtherComprehensiveIncomeLossNetOfTax us-gaap:ConsolidatedEntities

srt:Subsidiaries


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value1.0481.0981.1951.2280.226-7.8691.187-1.398-4.746-2.483-5.2371.0271.8715.0083.3320.626-1.08
Percentage of OtherComprehensiveIncomeLossNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues0.90.90.91.00.2-5.40.8-1.0-3.3-1.7-3.80.81.43.72.50.5-0.8
Percentage of Revenues srt:Subsidiaries0.90.90.01.00.2-5.40.8-1.0-3.3-1.7-3.80.81.43.72.50.5-0.8

us-gaap:OtherComprehensiveIncomeLossNetOfTax us-gaap:ConsolidatedEntities, us-gaap:StatementEquityComponents

srt:Subsidiaries, us-gaap:AccumulatedOtherComprehensiveIncome


Other
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
Value1.0481.0981.2280.226-7.869-1.398-4.746-2.483-5.2371.0271.8715.0083.3320.626
Percentage of OtherComprehensiveIncomeLossNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues0.90.91.00.2-5.4-1.0-3.3-1.7-3.80.81.43.72.50.5
Percentage of Revenues srt:Subsidiaries us-gaap:AccumulatedOtherComprehensiveIncome0.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:OtherComprehensiveIncomeLossNetOfTax us-gaap:StatementEquityComponents

us-gaap:AccumulatedOtherComprehensiveIncome


Other
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-31
Value1.0421.0921.2210.225-7.825-1.39-4.72-2.469-5.211.0181.8564.9663.3050.622-1.0711.288132.717-3.498-9.0793.298-2.8391.539-2.583-1.9493.447-2.2-0.912.83-1.2249.4471.874.538-4.007-10.4440.074-3.655
Percentage of OtherComprehensiveIncomeLossNetOfTax99.499.599.499.699.499.499.599.499.599.199.299.299.299.499.299.199.299.299.299.199.199.199.299.299.299.198.998.998.898.998.898.899.698.298.298.794.7
Percentage of Revenues0.90.91.00.2-5.4-1.0-3.3-1.7-3.70.81.43.62.50.5-0.81.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of Revenues us-gaap:AccumulatedOtherComprehensiveIncome0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:NoncontrollingInterest


Other
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-31
Value0.0060.0060.0070.001-0.044-0.008-0.026-0.014-0.0270.0090.0150.0420.0270.004-0.0090.0120.1140.023-0.029-0.080.029-0.0250.013-0.022-0.0160.033-0.025-0.010.035-0.0170.1110.0230.016-0.009-0.1950.001-0.204
Percentage of OtherComprehensiveIncomeLossNetOfTax0.60.50.60.40.60.60.50.60.50.90.80.80.80.60.80.90.80.80.80.90.90.90.80.80.80.91.11.11.21.41.21.20.40.21.81.35.3
Percentage of Revenues0.00.00.00.0-0.0-0.0-0.0-0.0-0.00.00.00.00.00.0-0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of Revenues us-gaap:NoncontrollingInterest0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

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
Value-0.1756.964192764.028.087166.826.2524.066122-43.262134473197.69821-12.377.884-1.32346-62.7203.0588.594-1.8698.8822.174-2.24521117.183.919-26.698176.8029.336-4.6026.611-6.234-0.49-4.991-6.616-5.6-0.399
Percentage of ProfitLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues-0.15.815.0219.02.95.611.54.74.32.888.2-32.09.832.855.414.86.016.20.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:ProfitLoss us-gaap:ConsolidatedEntities

srt:Subsidiaries


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
Value-0.1756.964192764.028.087166.826.2524.066122-43.262134473197.69821
Percentage of ProfitLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues-0.15.815.0219.02.95.611.54.74.32.888.2-32.09.832.855.414.86.016.2
Percentage of Revenues srt:Subsidiaries-0.15.80.0219.02.95.611.54.74.32.888.2-32.09.832.855.414.86.016.2

us-gaap:ProfitLoss us-gaap:ConsolidatedEntities, us-gaap:PartnerTypeOfPartnersCapitalAccount

srt:Subsidiaries, us-gaap:GeneralPartner


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
Value-0.1746.9652764.018.0756.8096.2394.032122-43.54212447319
Percentage of ProfitLoss99.4100.0100.099.899.999.899.899.2100.0100.697.9100.0100.099.9
Percentage of Revenues-0.15.8219.02.95.64.74.32.888.1-32.39.632.855.414.8
Percentage of Revenues srt:Subsidiaries us-gaap:GeneralPartner0.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:ProfitLoss us-gaap:ConsolidatedEntities, us-gaap:StatementEquityComponents

srt:Subsidiaries, 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
Value-0.001-0.001-0.0020.010.0120.0110.0130.0340.0090.020.0210.0050.0040.012
Percentage of ProfitLoss0.6-0.0-0.00.20.10.20.20.80.0-0.00.20.00.00.1
Percentage of Revenues-0.0-0.0-0.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of Revenues srt:Subsidiaries us-gaap:NoncontrollingInterest0.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:ProfitLoss us-gaap:EquityMethodInvestmentNonconsolidatedInvestee

us-gaap:EquityMethodInvestmentNonconsolidatedInvesteeOrGroupOfInvestees


Profit
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-30
Value-8.918-7.897-10.905-9.281-4.493-4.322-16.423-0.046-3.797
Percentage of ProfitLoss5096.0-113.4-57.1-3.4-111.8-53.4-97.3-0.7-60.7
Percentage of Revenues-7.4-6.5-8.6-7.4-3.3-3.0-11.2-0.0-2.6
Percentage of Revenues us-gaap:EquityMethodInvestmentNonconsolidatedInvesteeOrGroupOfInvestees-16.8-14.80.0-21.5-14.4-13.90.0-0.1-11.4

us-gaap:ProfitLoss us-gaap:StatementEquityComponents

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
Value-0.0080.0431.6120.0240.0650.0480.0470.0570.798-0.3420.1290.3760.6250.170.0450.169-0.1150.058-0.0220.389-0.560.1610.0020.058-0.090.108-0.019-0.0320.2170.1070.060.028-0.4890.2580.0310.134-0.3610.362-0.165-0.051-0.143-0.179-0.159-0.051
Percentage of ProfitLoss4.60.60.60.60.80.70.81.40.70.81.00.80.80.90.60.80.90.71.70.80.90.80.10.74.81.2-0.91.41.01.00.80.71.81.50.51.47.85.52.610.42.92.72.812.8
Percentage of Revenues-0.00.01.30.00.00.00.00.00.6-0.30.10.30.50.10.00.10.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of Revenues 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:RetainedEarnings


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
Value-0.1676.9212743.9968.0226.7726.2054.009121-43.18124473187.65321-12.2557.826-1.30145-62.14203.0568.536-1.7798.7742.193-2.21320107.123.891-26.209166.7719.202-4.2416.249-6.069-0.439-4.848-6.437-5.441-0.348
Percentage of ProfitLoss95.499.499.499.499.299.399.298.699.399.897.099.299.299.199.499.299.199.398.399.299.199.299.999.395.298.8100.998.699.099.099.299.398.298.599.598.692.294.597.489.697.197.397.287.2
Percentage of Revenues-0.15.7217.72.95.54.74.32.887.6-32.09.532.554.914.76.016.10.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of Revenues us-gaap:RetainedEarnings0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Revenue From Contract With Customer Including Assessed Tax

us-gaap:RevenueFromContractWithCustomerIncludingAssessedTax us-gaap:ConsolidatedEntities, us-gaap:ProductOrService

us-gaap:RevenueFromContractWithCustomerIncludingAssessedTax

srt:Subsidiaries, bdn:ThirdPartyManagementRevenue


Revenue
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value4.3244.0614.9545.5854.9385.1483.9555.0264.9444.9137.674
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues3.43.03.43.83.43.62.73.63.73.75.6
Percentage of Revenues srt:Subsidiaries bdn:ThirdPartyManagementRevenue100.0100.0100.00.0100.0100.0100.00.0100.0100.0100.0

srt:Subsidiaries, us-gaap:RealEstateOther


Revenue
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value0.5050.5960.931.9021.1651.2161.8431.4541.4191.9461.9251.431.5240.976
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax11.714.718.834.123.623.646.628.928.739.625.10.00.00.0
Percentage of Revenues0.40.40.61.30.80.81.31.01.11.51.41.11.20.8
Percentage of Revenues srt:Subsidiaries us-gaap:RealEstateOther100.0100.0100.00.0100.0100.0100.00.0100.0100.0100.00.0100.0100.0

us-gaap:RevenueFromContractWithCustomerIncludingAssessedTax us-gaap:ProductOrService

bdn:ThirdPartyManagementRevenue


Revenue
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value4.3244.0614.9545.5854.9385.1483.9555.0264.9444.9137.674
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues3.43.03.43.83.43.62.73.63.73.75.6
Percentage of Revenues bdn:ThirdPartyManagementRevenue100.0100.0100.00.0100.0100.0100.00.0100.0100.0100.0

us-gaap:RealEstateOther


Revenue
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value0.5050.5960.931.9021.1651.2161.8431.4541.4191.9461.9251.431.5240.976
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax11.714.718.834.123.623.646.628.928.739.625.10.00.00.0
Percentage of Revenues0.40.40.61.30.80.81.31.01.11.51.41.11.20.8
Percentage of Revenues us-gaap:RealEstateOther100.0100.0100.00.0100.0100.0100.00.0100.0100.0100.00.0100.0100.0

us-gaap:RevenueFromContractWithCustomerIncludingAssessedTax us-gaap:ProductOrService, us-gaap:InvestmentSecondaryCategorization

bdn:LeaseCommissionIncome, bdn:RealEstateVenture


Revenue
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-30
Value0.61.30.20.20.40.30.30.21.51.5
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax0.00.04.64.98.16.15.85.130.330.5
Percentage of Revenues0.51.10.20.10.30.20.20.11.11.1
Percentage of Revenues bdn:LeaseCommissionIncome bdn:RealEstateVenture0.00.00.00.00.00.00.00.00.00.0

bdn:ManagementFees, bdn:RealEstateVenture


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value2.12.01.51.30.81.11.11.01.11.12.31.41.3
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax0.00.00.030.119.722.219.720.321.427.845.828.326.5
Percentage of Revenues1.71.71.21.00.60.80.70.70.80.81.71.01.0
Percentage of Revenues bdn:ManagementFees bdn:RealEstateVenture0.00.00.00.00.00.00.00.00.00.00.00.00.0

Revenues

us-gaap:Revenues

us-gaap:Revenues


Revenues
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value120120126126136145147145144143139134133136133128127130
Percentage of Revenues100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:Revenues us-gaap:ConsolidatedEntities

srt:Subsidiaries


Revenuesus-gaap:
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value120120126126136145147145144143139134133136133128127130
Percentage of Revenues100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues srt:Subsidiaries100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:Revenues us-gaap:ConsolidatedEntities, us-gaap:ProductOrService

srt:Subsidiaries, bdn:Rents


Revenuesus-gaap:
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value111113120121132139139139137138
Percentage of Revenues92.694.095.396.296.695.994.995.895.696.0
Percentage of Revenues92.694.095.396.296.695.994.995.895.696.0
Percentage of Revenues srt:Subsidiaries bdn:Rents100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

srt:Subsidiaries, bdn:ThirdPartyManagementRevenue


Revenuesus-gaap:
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value6.6276.6515.2414.3244.0614.9545.5854.9385.1483.9555.0264.9444.9137.674
Percentage of Revenues5.55.54.13.43.03.43.83.43.62.73.63.73.75.6
Percentage of Revenues5.55.54.13.43.03.43.83.43.62.73.63.73.75.6
Percentage of Revenues srt:Subsidiaries bdn:ThirdPartyManagementRevenue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

srt:Subsidiaries, us-gaap:RealEstateOther


Revenuesus-gaap:
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value2.240.6340.7370.5050.5960.931.9021.1651.2161.8431.4541.4191.9461.9251.431.5240.976
Percentage of Revenues1.90.50.60.40.40.61.30.80.81.31.01.11.51.41.11.20.8
Percentage of Revenues1.90.50.60.40.40.61.30.80.81.31.01.11.51.41.11.20.8
Percentage of Revenues srt:Subsidiaries us-gaap:RealEstateOther100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:Revenues us-gaap:ConsolidationItems

us-gaap:CorporateNonSegment


Revenuesus-gaap:
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value4.3763.7391.940.6261.0220.9491.5341.2431.5711.0030.5880.7990.9221.312.4752.4082.511
Percentage of Revenues3.63.11.50.50.70.71.00.91.10.70.40.60.71.01.91.92.0
Percentage of Revenues3.63.11.50.50.70.71.00.91.10.70.40.60.71.01.91.92.0
Percentage of Revenues us-gaap:CorporateNonSegment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

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

us-gaap:OperatingSegments, bdn:AustinTexas


Revenuesus-gaap:
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value25262625252626262624138.6418.4698.3648.5297.8868.763
Percentage of Revenues21.221.720.520.118.318.318.318.118.217.29.56.46.36.16.46.16.9
Percentage of Revenues21.221.720.520.118.318.318.318.118.217.29.56.46.36.16.46.16.9
Percentage of Revenues us-gaap:OperatingSegments bdn:AustinTexas100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OperatingSegments, bdn:MetropolitanDC


Revenuesus-gaap:
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value4.8124.6759.7039.67510101113131321222323222322
Percentage of Revenues4.03.97.77.77.47.47.69.19.59.415.316.917.316.917.118.017.8
Percentage of Revenues4.03.97.77.77.47.47.69.19.59.415.316.917.316.917.118.017.8
Percentage of Revenues us-gaap:OperatingSegments bdn:MetropolitanDC100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OperatingSegments, bdn:PennsylvaniaSuburbs


Revenuesus-gaap:
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value3031353434373634343534343434343435
Percentage of Revenues25.226.327.627.525.325.724.724.023.824.824.725.725.725.625.627.127.5
Percentage of Revenues25.226.327.627.525.325.724.724.023.824.824.725.725.725.625.627.127.5
Percentage of Revenues us-gaap:OperatingSegments bdn:PennsylvaniaSuburbs100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OperatingSegments, bdn:PhiladelphiaCBD


Revenuesus-gaap:
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value5151505262656666646566646362615654
Percentage of Revenues42.842.440.141.745.845.445.545.545.145.747.647.747.545.946.044.042.6
Percentage of Revenues42.842.440.141.745.845.445.545.545.145.747.647.747.545.946.044.042.6
Percentage of Revenues us-gaap:OperatingSegments bdn:PhiladelphiaCBD100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OperatingSegments, us-gaap:AllOtherSegments


Revenuesus-gaap:
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value3.6623.2133.2483.1883.3813.6524.2063.7063.4643.1823.573.7073.3396.1414.0733.7524.16
Percentage of Revenues3.02.72.62.52.52.52.92.62.42.22.62.72.54.53.12.93.3
Percentage of Revenues3.02.72.62.52.52.52.92.62.42.22.62.72.54.53.12.93.3
Percentage of Revenues us-gaap:OperatingSegments us-gaap:AllOtherSegments100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:Revenues us-gaap:EquityMethodInvestmentNonconsolidatedInvestee

us-gaap:EquityMethodInvestmentNonconsolidatedInvesteeOrGroupOfInvestees


Revenuesus-gaap:
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-30
Value535344433131313233
Percentage of Revenues44.344.235.334.222.921.521.222.523.1
Percentage of Revenues44.344.235.334.222.921.521.222.523.1
Percentage of Revenues us-gaap:EquityMethodInvestmentNonconsolidatedInvesteeOrGroupOfInvestees100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:Revenues us-gaap:ProductOrService

bdn:Rents


Revenuesus-gaap:
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value111113120121132139139139137138
Percentage of Revenues92.694.095.396.296.695.994.995.895.696.0
Percentage of Revenues92.694.095.396.296.695.994.995.895.696.0
Percentage of Revenues bdn:Rents100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

bdn:ThirdPartyManagementRevenue


Revenuesus-gaap:
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value6.6276.6515.2414.3244.0614.9545.5854.9385.1483.9555.0264.9444.9137.674
Percentage of Revenues5.55.54.13.43.03.43.83.43.62.73.63.73.75.6
Percentage of Revenues5.55.54.13.43.03.43.83.43.62.73.63.73.75.6
Percentage of Revenues bdn:ThirdPartyManagementRevenue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:RealEstateOther


Revenuesus-gaap:
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value2.240.6340.7370.5050.5960.931.9021.1651.2161.8431.4541.4191.9461.9251.431.5240.976
Percentage of Revenues1.90.50.60.40.40.61.30.80.81.31.01.11.51.41.11.20.8
Percentage of Revenues1.90.50.60.40.40.61.30.80.81.31.01.11.51.41.11.20.8
Percentage of Revenues us-gaap:RealEstateOther100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Assets

us-gaap:Assets

us-gaap:Assets


Assets
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value38893889390039914022404540754020404841154098392339914037399538553872410140994142418143784554474148144845485951484704476047654558456644254506466646694825455747034668468646904663
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 us-gaap:ConsolidatedEntities

srt:Subsidiaries


Assetsus-gaap:
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-31
Value38893889390039914022404540754020404841154098392339913995
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 srt:Subsidiaries100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:VariableInterestEntityPrimaryBeneficiary


Assetsus-gaap:
Period End2020-12-312019-12-31
Value49392
Percentage of Assets1.39.6
Percentage of Assets1.39.6
Percentage of Assets us-gaap:VariableInterestEntityPrimaryBeneficiary100.0100.0

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
Value21382107209521752451244123872317231823342265214621402170214821042114222222152231225124132602269626982707269929582833286428432636263226662733278227752949266827822732272827122742
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 Assets55.054.253.754.561.060.458.657.757.356.755.354.753.653.853.854.654.654.254.153.953.855.157.156.956.155.955.657.560.260.259.757.957.660.360.659.659.461.158.559.258.558.257.858.8

us-gaap:Liabilities us-gaap:ConsolidatedEntities

srt:Subsidiaries


Liabilitiesus-gaap:
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-31
Value21382107209521752451244123872317231823342265214621402148
Percentage of Liabilities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets55.054.253.754.561.060.458.657.757.356.755.354.753.653.8
Percentage of Assets srt:Subsidiaries55.054.253.754.561.060.458.657.757.356.755.354.753.653.8

us-gaap:VariableInterestEntityPrimaryBeneficiary


Liabilitiesus-gaap:
Period End2020-12-312019-12-31
Value21255
Percentage of Liabilities1.010.7
Percentage of Assets0.66.3
Percentage of Assets us-gaap:VariableInterestEntityPrimaryBeneficiary43.965.2

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
Value38893889390039914022404540754020404841154098392339914037399538553872410140994142418143784554474148144845485951484704476047654558456644254506466646694825455747034668468646904663
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 us-gaap:ConsolidatedEntities

srt:Subsidiaries


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
Value38893889390039914022404540754020404841154098392339913995
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 srt:Subsidiaries100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

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
Value17401771179418051560159316771690171717691820175918331849182917331740186218661894191219461933202620962120214021681849187419001900191317371752185218621843185617981812182918491883
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 Assets44.745.646.045.238.839.441.242.142.443.044.444.945.945.845.845.045.045.445.545.745.744.442.542.743.643.844.142.139.339.439.941.741.939.338.939.739.938.240.738.238.839.039.440.4

Cash And Cash Equivalents At Carrying Value

us-gaap:CashAndCashEquivalentsAtCarryingValue

us-gaap:CashAndCashEquivalentsAtCarryingValue


Cash
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-302015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312008-12-312007-12-31
Value47454662445290293114227010820020225372341932192654235650123309257671234236263185215471.5492411902840.415.7060.7330.249161040.2977.591.5673.9245.6
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 Assets1.21.21.21.61.11.32.20.70.80.40.61.82.75.05.10.71.05.74.75.36.49.70.01.12.66.45.313.15.05.05.54.14.71.10.05.24.15.90.00.10.00.00.40.00.00.00.00.00.0

us-gaap:CashAndCashEquivalentsAtCarryingValue us-gaap:ConsolidatedEntities

srt:Subsidiaries


Cash
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-31
Value474546624452902931142270108200202193
Percentage of CashAndCashEquivalentsAtCarryingValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets1.21.21.21.61.11.32.20.70.80.40.61.82.75.05.14.7
Percentage of Assets srt:Subsidiaries1.21.21.21.61.11.32.20.70.80.40.61.82.70.05.10.0

Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents


Cash
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312015-12-31
Value484647624553913031142371109201203267126719456
Percentage of CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets1.21.21.21.61.11.32.20.80.80.40.61.82.75.05.10.71.86.54.71.2

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents us-gaap:ConsolidatedEntities

srt:Subsidiaries


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
Value484647624553913031142371109201203267119456
Percentage of CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets1.21.21.21.61.11.32.20.80.80.40.61.82.75.05.10.71.84.71.2
Percentage of Assets srt:Subsidiaries1.21.21.21.61.11.32.20.80.80.40.61.82.70.05.10.00.00.00.0

Land

us-gaap:Land

us-gaap:Land


Land
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-31
Value391391407437435485489487509508437497498492470462462469488497511513658677646669675688680680664665641662649649666677698698697
Percentage of Land100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets10.110.110.411.010.812.012.012.012.412.411.212.512.312.312.211.911.311.511.811.911.711.313.914.113.313.813.114.614.314.314.614.614.514.713.913.913.814.914.915.014.9

Finite Lived Intangible Assets Net

us-gaap:FiniteLivedIntangibleAssetsNet

us-gaap:FiniteLivedIntangibleAssetsNet


Finite
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value3943485055758495109119131555963645859647281901001111271379399105112125132545966705257637081789297105
Percentage of FiniteLivedIntangibleAssetsNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets1.01.11.21.31.41.92.12.42.72.93.21.41.51.61.61.51.51.61.82.02.22.32.52.72.91.92.02.02.42.62.81.21.31.51.61.11.21.31.51.71.72.02.12.3

us-gaap:FiniteLivedIntangibleAssetsNet us-gaap:ConsolidatedEntities

srt:Subsidiaries


Finite
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-31
Value3943485055758495109119131555964
Percentage of FiniteLivedIntangibleAssetsNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets1.01.11.21.31.41.92.12.42.72.93.21.41.51.6
Percentage of Assets srt:Subsidiaries1.01.11.21.31.41.92.12.42.72.93.21.41.51.6

us-gaap:FiniteLivedIntangibleAssetsNet us-gaap:FiniteLivedIntangibleAssetsByMajorClass

us-gaap:AboveMarketLeases


Finite
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302011-12-31
Value0.220.2420.2650.3020.7060.9991.1641.3281.4931.6591.8241.6951.8532.0061.9891.8782.0172.2022.3782.5542.7293.2133.4543.6373.824.0254.2324.444.6595.075.331.3021.4236.6936.8576.0856.888
Percentage of FiniteLivedIntangibleAssetsNet0.60.60.50.61.31.31.41.41.41.41.43.13.13.23.13.23.43.43.33.13.03.23.12.92.84.34.34.24.24.14.02.42.410.19.711.69.8
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.00.00.20.20.10.2
Percentage of Assets us-gaap:AboveMarketLeases0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:CustomerRelationships


Finite
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-31
Value0.0950.1220.1530.2110.2830.3670.4530.540.6860.8491.0131.1771.3551.5291.9262.1852.4192.6582.9073.1973.5123.94.5375.1645.8646.6137.8288.6699.8610111416171820222527323443
Percentage of FiniteLivedIntangibleAssetsNet0.20.30.30.40.50.50.50.60.60.70.82.12.32.43.03.74.14.14.03.93.93.94.14.14.37.17.98.28.88.68.926.427.726.126.538.239.539.439.339.343.644.4
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.10.10.10.10.10.10.10.10.10.10.10.20.20.20.20.20.30.40.40.40.40.50.50.60.70.70.9
Percentage of Assets us-gaap:CustomerRelationships0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:LeasesAcquiredInPlace


Finite
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-31
Value39434850667483931071171285256606154545967758392104118127828792971091153841424526283235423645
Percentage of FiniteLivedIntangibleAssetsNet99.299.299.199.0120.898.298.198.198.097.997.894.894.694.494.093.192.592.492.792.993.192.993.493.192.988.687.987.687.187.387.071.270.063.863.750.249.850.551.051.546.146.6
Percentage of Assets1.01.11.21.31.71.82.02.32.62.93.11.31.41.51.51.41.41.41.61.82.02.12.32.52.71.71.81.82.12.32.40.90.91.01.00.60.60.70.80.90.81.0
Percentage of Assets us-gaap:LeasesAcquiredInPlace0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Operating Lease Right Of Use Asset

us-gaap:OperatingLeaseRightOfUseAsset

us-gaap:OperatingLeaseRightOfUseAsset


Operating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312017-12-31
Value202020212121212122220.00.0
Percentage of OperatingLeaseRightOfUseAsset100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.0
Percentage of Assets0.50.50.50.50.50.50.50.50.50.50.00.0

us-gaap:OperatingLeaseRightOfUseAsset us-gaap:ConsolidatedEntities

srt:Subsidiaries


Operating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value202020212121212122220.0
Percentage of OperatingLeaseRightOfUseAsset100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0
Percentage of Assets0.50.50.50.50.50.50.50.50.50.50.0
Percentage of Assets srt:Subsidiaries0.50.50.50.50.50.50.50.50.50.50.0

Other Assets

us-gaap:OtherAssets

us-gaap:OtherAssets


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value17818517612411712611512512313912618616713992941101167479637271736878657566756265526253624857535953575453
Percentage of OtherAssets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets4.64.84.53.12.93.12.83.13.13.43.14.74.23.52.32.52.82.81.81.91.51.71.61.51.41.61.31.51.41.61.31.41.11.41.21.31.01.21.21.31.11.21.21.1

us-gaap:OtherAssets us-gaap:ConsolidatedEntities

srt:Subsidiaries


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-31
Value17818517612411712611512512313912618616792
Percentage of OtherAssets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets4.64.84.53.12.93.12.83.13.13.43.14.74.22.3
Percentage of Assets srt:Subsidiaries4.64.84.53.12.93.12.83.13.13.43.14.74.22.3

us-gaap:OtherAssets us-gaap:EquityMethodInvestmentNonconsolidatedInvestee

us-gaap:EquityMethodInvestmentNonconsolidatedInvesteeOrGroupOfInvestees


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302019-12-31
Value455473488442336342
Percentage of OtherAssets254.4254.9276.6356.0285.6295.6
Percentage of Assets11.712.212.511.18.48.4
Percentage of Assets us-gaap:EquityMethodInvestmentNonconsolidatedInvesteeOrGroupOfInvestees0.00.00.00.00.00.0

Long Term Debt

us-gaap:LongTermDebt

us-gaap:LongTermDebt


Long
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302015-12-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-30
Value1888184318301919220121922144207820962094202819371938194019301889191220122013201320342384245127132588259125952377237923932465250625092674239324922466
Percentage of LongTermDebt100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets48.647.446.948.154.754.252.651.751.850.949.549.448.648.048.349.049.449.149.148.648.752.450.452.755.054.454.552.252.154.154.753.753.855.452.553.052.8

us-gaap:LongTermDebt us-gaap:EquityMethodInvestmentNonconsolidatedInvestee

us-gaap:EquityMethodInvestmentNonconsolidatedInvesteeOrGroupOfInvestees


Long
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302019-12-31
Value955956956833609585
Percentage of LongTermDebt50.651.952.343.427.727.3
Percentage of Assets24.624.624.520.915.114.4
Percentage of Assets us-gaap:EquityMethodInvestmentNonconsolidatedInvesteeOrGroupOfInvestees0.00.00.00.00.00.0

us-gaap:LongTermDebt us-gaap:LongLivedAssetsHeldForSaleByAssetType, us-gaap:LongtermDebtType

bdn:PhiladelphiaOffice, us-gaap:SecuredDebt


Long
Period End2020-07-21
Value222
Percentage of LongTermDebt0.0
Percentage of Assets0.0
Percentage of Assets bdn:PhiladelphiaOffice us-gaap:SecuredDebt0.0

us-gaap:LongTermDebt us-gaap:LongLivedAssetsHeldForSaleByAssetType, us-gaap:LongtermDebtType, us-gaap:SubsequentEventType

bdn:PhiladelphiaOffice, us-gaap:SecuredDebt, us-gaap:SubsequentEvent


Long
Period End2020-07-21
Value222
Percentage of LongTermDebt0.0
Percentage of Assets0.0
Percentage of Assets bdn:PhiladelphiaOffice us-gaap:SecuredDebt us-gaap:SubsequentEvent0.0

us-gaap:LongTermDebt us-gaap:LongtermDebtType

us-gaap:SecuredDebt


Long
Period End2020-09-302020-06-302019-12-31
Value88310313
Percentage of LongTermDebt4.614.114.6
Percentage of Assets2.27.77.7
Percentage of Assets us-gaap:SecuredDebt0.00.00.0

us-gaap:UnsecuredDebt


Long
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302019-12-312011-12-312011-09-302011-06-302010-12-31
Value1888184318301830189118302393249224662430
Percentage of LongTermDebt100.0100.0100.095.485.985.4100.0100.0100.00.0
Percentage of Assets48.647.446.945.947.044.952.553.052.851.8
Percentage of Assets us-gaap:UnsecuredDebt0.00.00.00.00.00.00.00.00.00.0

us-gaap:LongTermDebt us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName

bdn:UnconsolidatedRealEstateVentures


Long
Period End2020-12-31
Value956
Percentage of LongTermDebt52.3
Percentage of Assets24.5
Percentage of Assets bdn:UnconsolidatedRealEstateVentures0.0

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
Value10101010101010111112121617171716161717171718181819181820202021202021213131323312212312812838
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 Assets0.30.30.30.30.30.30.30.30.30.30.30.40.40.40.40.40.40.40.40.40.40.40.40.40.40.40.40.40.40.40.40.40.40.50.50.70.70.70.72.62.62.72.70.8

Lessee Operating Lease Liability Payments Due Year Two

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearTwo

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearTwo


Lessee
Period End2020-12-31
Value1248000.0
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueYearTwo100.0
Percentage of Assets0.0

Lessee Operating Lease Liability Payments Due Year Three

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearThree

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearThree


Lessee
Period End2020-12-31
Value1263000.0
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueYearThree100.0
Percentage of Assets0.0

Lessee Operating Lease Liability Payments Due Year Four

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFour

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFour


Lessee
Period End2020-12-31
Value1305000.0
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueYearFour100.0
Percentage of Assets0.0

Lessee Operating Lease Liability Payments Due Year Five

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFive

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFive


Lessee
Period End2020-12-31
Value1321000.0
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueYearFive100.0
Percentage of Assets0.0

Lessee Operating Lease Liability Payments Due After Year Five

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive


Lessee
Period End2020-12-31
Value109
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive100.0
Percentage of Assets2.8

Operating Lease Liability

us-gaap:OperatingLeaseLiability

us-gaap:OperatingLeaseLiability


Operating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value222222222222222222220.0
Percentage of OperatingLeaseLiability100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0
Percentage of Assets0.60.60.60.60.60.60.60.60.60.50.0

us-gaap:OperatingLeaseLiability us-gaap:ConsolidatedEntities

srt:Subsidiaries


Operating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value222222222222222222220.0
Percentage of OperatingLeaseLiability100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0
Percentage of Assets0.60.60.60.60.60.60.60.60.60.50.0
Percentage of Assets srt:Subsidiaries0.60.60.60.60.60.60.60.60.60.50.0

Lessee Operating Lease Liability Payments Due

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDue

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDue


Lessee
Period End2020-12-31
Value115
Percentage of LesseeOperatingLeaseLiabilityPaymentsDue100.0
Percentage of Assets3.0

Lessee Operating Lease Liability Undiscounted Excess Amount

us-gaap:LesseeOperatingLeaseLiabilityUndiscountedExcessAmount

us-gaap:LesseeOperatingLeaseLiabilityUndiscountedExcessAmount


Lessee
Period End2020-12-31
Value92
Percentage of LesseeOperatingLeaseLiabilityUndiscountedExcessAmount100.0
Percentage of Assets2.4

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
Value17401771179418051560159316771690171717691820175918331849182917331740186218661894191219461933202620962120214021681849187419001900191317371752185218621843185617981812182918491883
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 Assets44.745.646.045.238.839.441.242.142.443.044.444.945.945.845.845.045.045.445.545.745.744.442.542.743.643.844.142.139.339.439.941.741.939.338.939.739.938.240.738.238.839.039.440.4

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
Value1751178218041815157016031688170217291781183217761850186718461750175718791883191119291964195220452115213821592189187018951921192119341758177318841893187518891920193619571977199819211919192117221850
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 Assets45.045.846.345.539.039.641.442.342.743.344.745.346.446.246.245.445.445.845.946.146.244.942.943.143.944.144.442.539.839.840.342.142.439.739.440.440.638.941.540.841.541.842.20.00.00.041.20.00.0

us-gaap:StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest us-gaap:EquityMethodInvestmentNonconsolidatedInvestee

us-gaap:EquityMethodInvestmentNonconsolidatedInvesteeOrGroupOfInvestees


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302019-12-31
Value734742719649283301
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest42.041.739.935.818.117.8
Percentage of Assets18.919.118.516.37.17.4
Percentage of Assets us-gaap:EquityMethodInvestmentNonconsolidatedInvesteeOrGroupOfInvestees0.00.00.00.00.00.0

us-gaap:StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest us-gaap:StatementEquityComponents

bdn:CommonStockHeldInTrust


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312013-12-31
Value-18.491-17.658-17.516-17.516-17.516-17.012-16.216-16.216-16.239-14.64-14.021-14.021-14.036-13.506-12.445-14.09-14.107-14.244-13.684-13.684-13.744-13.155-11.918-11.918-11.996-11.194-6.219-5.407
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest-1.1-1.0-1.0-1.0-1.1-1.1-1.0-1.0-0.9-0.8-0.8-0.8-0.8-0.7-0.7-0.8-0.8-0.8-0.7-0.7-0.7-0.7-0.6-0.6-0.6-0.5-0.3-0.3
Percentage of Assets-0.5-0.5-0.4-0.4-0.4-0.4-0.4-0.4-0.4-0.4-0.3-0.4-0.4-0.3-0.3-0.4-0.4-0.3-0.3-0.3-0.3-0.3-0.3-0.3-0.2-0.2-0.1-0.1
Percentage of Assets bdn:CommonStockHeldInTrust0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap: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
Value-2513.373-2480.811-2448.238-2415.736-2383.273-2350.733-2318.233-2284.61-2251.04-2217.469-2183.909-2150.463-2118.23-2086.0-2053.741-2021.568-1993.419-1961.739-1931.892-1902.076-1872.1-1842.45-1814.378-1786.374-1758.294-1729.517-1700.579-1671.888-1643.241-1617.878-1592.515-1567.202-1541.896-1516.591-1493.206-1467.058-1442.662-1415.916-1392.332-1368.809-1346.353-1323.889-1301.521-1279.231-1256.962-1235.017-1213.359-1150.406-999.654
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest-143.5-139.2-135.7-133.0-151.7-146.6-137.3-134.2-130.1-124.5-119.2-121.0-114.5-111.7-111.2-115.5-113.4-104.4-102.6-99.5-97.0-93.8-92.9-87.3-83.1-80.9-78.8-76.3-87.9-85.4-82.9-81.6-79.7-86.2-84.2-77.9-76.2-75.5-73.7-71.3-69.5-67.6-65.8-64.0-65.4-64.3-63.1-66.8-54.0
Percentage of Assets-64.6-63.8-62.8-60.5-59.2-58.1-56.9-56.8-55.6-53.9-53.3-54.8-53.1-51.7-51.4-52.4-51.5-47.8-47.1-45.9-44.8-42.1-39.8-37.7-36.5-35.7-35.0-32.5-34.9-34.0-33.4-34.4-33.8-34.3-33.1-31.4-30.9-29.3-30.5-29.1-28.8-28.2-27.70.00.00.0-26.00.00.0
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:AccumulatedOtherComprehensiveIncome


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312008-12-312007-12-31
Value-5.427-6.469-7.561-8.749-9.97-10.195-2.37-3.55-2.162.565.029109.2217.3652.399-0.906-1.528-0.457-1.745-15.052-17.769-14.271-5.192-8.49-5.651-7.19-4.607-2.658-6.105-3.905-2.995-5.825-4.601-14.048-15.918-20.456-16.449-6.005-6.079-2.424-2.474-2.524-1.945-2.817-5.056-7.375-9.138-17.005-1.885
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest-0.3-0.4-0.4-0.5-0.6-0.6-0.1-0.2-0.10.10.30.60.50.40.1-0.1-0.1-0.0-0.1-0.8-0.9-0.7-0.3-0.4-0.3-0.3-0.2-0.1-0.3-0.2-0.2-0.3-0.2-0.8-0.9-1.1-0.9-0.3-0.3-0.1-0.1-0.1-0.1-0.1-0.3-0.4-0.5-1.0-0.1
Percentage of Assets-0.1-0.2-0.2-0.2-0.2-0.3-0.1-0.1-0.10.10.10.30.20.20.1-0.0-0.0-0.0-0.0-0.4-0.4-0.3-0.1-0.2-0.1-0.1-0.1-0.1-0.1-0.1-0.1-0.1-0.1-0.3-0.4-0.4-0.4-0.1-0.1-0.1-0.1-0.1-0.00.00.00.0-0.20.00.0
Percentage of Assets us-gaap:AccumulatedOtherComprehensiveIncome0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

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
Value3140314031383136313531403192318931883187320032233223322232183167316532623258325832563255325232583317331733143310297529742971297029672783278028282826277727762686268426732671266326522626261023512348
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest179.4176.2173.9172.8199.6195.8189.1187.3184.3178.9174.7181.4174.1172.6174.3180.9180.1173.6173.0170.4168.8165.8166.6159.3156.8155.1153.5151.2159.1156.9154.7154.6153.4158.3156.8150.1149.3148.1146.9139.9138.7136.5135.1133.3138.1136.8135.8136.5126.9
Percentage of Assets80.780.780.578.677.977.678.379.378.877.478.182.280.779.880.682.281.879.579.578.677.974.471.468.768.968.568.264.363.262.562.465.265.062.961.760.660.557.660.957.157.557.057.00.00.00.056.00.00.0
Percentage of Assets us-gaap:AdditionalPaidInCapital0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

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
Value1.7091.7071.7071.7071.7071.711.7661.7631.7631.7611.771.7871.7871.7851.7841.7551.7541.7521.7521.7521.7511.7491.7471.7521.7991.7981.7931.791.5711.5671.5661.5651.5651.4351.4341.4321.4311.4281.4241.3531.3531.3451.3431.3391.3191.2991.2860.8820.87
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest0.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.0
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:DeferredCompensationShareBasedPayments


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
Value18171717171716161614141414131214141413131313111111116.2196.2196.3036.2675.4075.4315.5165.5165.3525.3525.4365.4365.6315.6315.7375.6335.7745.9466.0235.9885.5496.2745.651
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest1.11.01.01.01.11.11.01.00.90.80.80.80.80.70.70.80.80.80.70.70.70.70.60.60.60.50.30.30.30.30.30.30.30.30.30.30.30.30.30.30.30.30.30.30.30.30.30.40.3
Percentage of Assets0.50.50.40.40.40.40.40.40.40.40.30.40.40.30.30.40.40.30.30.30.30.30.30.30.20.20.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.00.00.00.10.00.0
Percentage of Assets us-gaap:DeferredCompensationShareBasedPayments0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

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
Value1010101010101011111212161717171616171717171818181918182020202120202121313132331221231281281303738385284
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest0.60.60.60.60.70.60.60.70.70.70.70.90.90.90.91.01.00.90.90.90.90.90.90.90.90.90.91.01.11.11.11.11.11.21.21.71.71.71.86.46.46.56.56.52.02.02.03.14.5
Percentage of Assets0.30.30.30.30.30.30.30.30.30.30.30.40.40.40.40.40.40.40.40.40.40.40.40.40.40.40.40.40.40.40.40.40.40.50.50.70.70.70.72.62.62.72.70.00.00.00.80.00.0
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:RetainedEarnings


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312008-12-312007-12-31
Value1116111711101091816812804787781795796674717704660586568560539551543545499561541538529531522520522501490483479510493486477481475482483488494500501498472
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest63.862.761.560.152.050.747.746.345.244.643.538.038.837.735.833.532.329.828.628.928.227.725.627.425.625.224.524.327.927.527.226.125.427.527.027.126.025.925.325.124.624.624.424.425.826.126.129.025.5
Percentage of Assets28.728.728.527.320.320.119.719.619.319.319.417.218.017.416.515.214.713.713.213.313.012.411.011.811.211.110.910.311.110.911.011.010.710.910.610.910.610.110.510.210.210.310.30.00.00.010.80.00.0
Percentage of Assets us-gaap:RetainedEarnings0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

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
Value1709000.01707000.01707000.01707000.01707000.01710000.01766000.01763000.01763000.01761000.01770000.01787000.01787000.01785000.01784000.01755000.01754000.01752000.01752000.01752000.01751000.01749000.01747000.01752000.01799000.01798000.01793000.01790000.01571000.01567000.01566000.01565000.01565000.01435000.01434000.01432000.01431000.01428000.01424000.01353000.01353000.01345000.01343000.01286000.0
Percentage of CommonStockValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
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
Value31403140313831363135314031923189318831873200322332233222321831673165326232583258325632553252325833173317331433102975297429712970296727832780282828262777277626862684267326712610
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 Assets80.780.780.578.677.977.678.379.378.877.478.182.280.779.880.682.281.879.579.578.677.974.471.468.768.968.568.264.363.262.562.465.265.062.961.760.660.557.660.957.157.557.057.056.0

Accumulated Other Comprehensive Income Loss Net Of Tax

us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax

us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax


Accumulated
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value-5.427-6.469-7.561-8.749-9.97-10.195-2.37-3.55-2.162.565.029109.2217.3652.399-0.906-1.528-0.457-1.745-15.052-17.769-14.271-5.192-8.49-5.651-7.19-4.607-2.658-6.105-3.905-2.995-5.825-4.601-14.048-15.918-20.456-16.449-6.005-6.079-2.424-2.474-2.524-1.945-9.138
Percentage of AccumulatedOtherComprehensiveIncomeLossNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets-0.1-0.2-0.2-0.2-0.2-0.3-0.1-0.1-0.10.10.10.30.20.20.1-0.0-0.0-0.0-0.0-0.4-0.4-0.3-0.1-0.2-0.1-0.1-0.1-0.1-0.1-0.1-0.1-0.1-0.1-0.3-0.4-0.4-0.4-0.1-0.1-0.1-0.1-0.1-0.0-0.2

us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax us-gaap:ConsolidatedEntities

srt:Subsidiaries


Accumulated
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-31
Value-5.789-6.837-7.935-9.13-10.358-10.584-2.715-3.902-2.5042.2424.7259.9628.9352.056
Percentage of AccumulatedOtherComprehensiveIncomeLossNetOfTax106.7105.7104.9104.4103.9103.8114.6109.9115.987.694.097.396.985.7
Percentage of Assets-0.1-0.2-0.2-0.2-0.3-0.3-0.1-0.1-0.10.10.10.30.20.1
Percentage of Assets srt:Subsidiaries-0.1-0.2-0.2-0.2-0.3-0.3-0.1-0.1-0.10.10.10.30.20.1

Minority Interest

us-gaap:MinorityInterest

us-gaap:MinorityInterest


Minority
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value10101010101010111112121617171716161717171718181819181820202021202021213131323312212312812838
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 Assets0.30.30.30.30.30.30.30.30.30.30.30.40.40.40.40.40.40.40.40.40.40.40.40.40.40.40.40.40.40.40.40.40.40.50.50.70.70.70.72.62.62.72.70.8

Minority Interest Decrease From Distributions To Noncontrolling Interest Holders

us-gaap:MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders

us-gaap:MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders


Minority
Period End2020-09-302018-12-312018-09-302018-06-302018-03-312017-12-31
Value22000.040000.00054000.02000.0
Percentage of MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders100.0100.00.00.0100.0100.0
Percentage of Assets0.00.00.00.00.00.0

us-gaap:MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders us-gaap:ConsolidatedEntities

srt:Subsidiaries


Minority
Period End2020-09-302018-12-312018-09-302018-06-302018-03-312017-12-31
Value22000.040000.00054000.02000.0
Percentage of MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders100.0100.00.00.0100.0100.0
Percentage of Assets0.00.00.00.00.00.0
Percentage of Assets srt:Subsidiaries0.00.00.00.00.00.0

us-gaap:MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders us-gaap:ConsolidatedEntities, us-gaap:StatementEquityComponents

srt:Subsidiaries, us-gaap:NoncontrollingInterest


Minority
Period End2020-09-302018-12-312018-09-302018-06-302018-03-312017-12-31
Value22000.040000.00054000.02000.0
Percentage of MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders100.0100.00.00.0100.0100.0
Percentage of Assets0.00.00.00.00.00.0
Percentage of Assets srt:Subsidiaries us-gaap:NoncontrollingInterest0.00.00.00.00.00.0

us-gaap:MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders us-gaap:StatementEquityComponents

us-gaap:NoncontrollingInterest


Minority
Period End2020-09-302018-12-312018-09-302018-06-302018-03-312017-12-31
Value22000.040000.00054000.02000.0
Percentage of MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders100.0100.00.00.0100.0100.0
Percentage of Assets0.00.00.00.00.00.0
Percentage of Assets us-gaap:NoncontrollingInterest0.00.00.00.00.00.0

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
Value374163625545786967177257583854454140964643-14.528505643455542395037494649354631442367305735466339
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 Revenues31.634.149.949.340.431.153.748.047.012.352.342.244.028.440.735.532.930.80.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:NetCashProvidedByUsedInOperatingActivities us-gaap:ConsolidatedEntities

srt:Subsidiaries


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
Value37416362554578696717725758385445
Percentage of NetCashProvidedByUsedInOperatingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.1
Percentage of Revenues31.634.149.949.340.431.153.748.047.012.352.342.244.028.440.735.5
Percentage of Revenues srt:Subsidiaries31.634.149.949.340.431.153.748.047.012.352.342.244.028.440.735.5

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-47.154-21.2494251-32.759-42.568-53.532-18.234-17.55-41.343-33.93-57.956-116.449-6.17162-7.3-6.99831-37.156-62.219-22.26762224-36.021-193.68138-176.037-33.36-13.023-48.36588-52.068-22.36490-115.9023217-7.954114-65.223-34.783-62.47-12.899-58.753-52.923-47.361
Percentage of NetCashProvidedByUsedInInvestingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues-39.3-17.633.440.7-23.9-29.3-36.4-12.5-12.2-28.7-24.4-42.9-87.0-4.546.7-5.7-5.524.30.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:NetCashProvidedByUsedInInvestingActivities us-gaap:ConsolidatedEntities

srt:Subsidiaries


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-47.154-21.2494251-32.759-42.568-53.532-18.234-17.55-41.343-33.93-57.956-116.449-6.17162-39.307
Percentage of NetCashProvidedByUsedInInvestingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0538.5
Percentage of Revenues-39.3-17.633.440.7-23.9-29.3-36.4-12.5-12.2-28.7-24.4-42.9-87.0-4.546.7-30.6
Percentage of Revenues srt:Subsidiaries-39.3-17.633.440.7-23.9-29.3-36.4-12.5-12.2-28.7-24.4-42.9-87.0-4.546.7-30.6

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
Value11-20.524-121.573-95.927-30.403-40.28635-53.019-32.96315-86.856-37.032-34.865-34.32160-50.848-231.745-31.367-84.857-30.6-179.249-241.201-69.016-93.672-34.426-32.341-294.403427-28.233-28.991-47.735-27.8143-94.489-159.303-27.84-143.522247-142.8632.5454.672-11.593-110.082115-17.43413
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 Revenues9.4-17.0-95.9-76.1-22.2-27.823.9-36.5-22.910.5-62.4-27.4-26.1-25.245.3-39.6-181.3-24.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:NetCashProvidedByUsedInFinancingActivities us-gaap:ConsolidatedEntities

srt:Subsidiaries


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
Value11-20.524-121.573-95.927-30.403-40.28635-53.019-32.96315-86.856-37.032-34.865-34.32160-50.848
Percentage of NetCashProvidedByUsedInFinancingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues9.4-17.0-95.9-76.1-22.2-27.823.9-36.5-22.910.5-62.4-27.4-26.1-25.245.3-39.6
Percentage of Revenues srt:Subsidiaries9.4-17.0-95.9-76.1-22.2-27.823.9-36.5-22.910.5-62.4-27.4-26.1-25.245.3-39.6

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

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect


Cash
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-30
Value2.032-0.597-15.91817-7.9-37.79660-1.459
Percentage of CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues1.7-0.5-12.613.9-5.8-26.141.2-1.0

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect us-gaap:ConsolidatedEntities

srt:Subsidiaries


Cash
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-30
Value2.032-0.597-15.91817-7.9-37.79660-1.459
Percentage of CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues1.7-0.5-12.613.9-5.8-26.141.2-1.0
Percentage of Revenues srt:Subsidiaries1.7-0.5-12.613.9-5.8-26.141.2-1.0

Amortization Of Financing Costs

us-gaap:AmortizationOfFinancingCosts

us-gaap:AmortizationOfFinancingCosts


Amortization
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value0.7090.7090.7090.7150.7310.7490.7420.6940.6660.6660.6260.6180.6270.6270.6280.5770.5960.6340.6330.6450.6440.7741.181.011.2881.0791.1961.5661.1971.1891.1741.1581.1831.1612.4181.2181.2611.3111.1471.8461.070.9281.070.8270.8621.011
Percentage of AmortizationOfFinancingCosts100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AmortizationOfFinancingCosts us-gaap:ConsolidatedEntities

srt:Subsidiaries


Amortization
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value0.7090.7090.7090.7150.7310.7490.7420.6940.6660.6660.6260.6180.6270.6270.6280.5770.596
Percentage of AmortizationOfFinancingCosts100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Increase Decrease In Accounts Receivable

us-gaap:IncreaseDecreaseInAccountsReceivable

us-gaap:IncreaseDecreaseInAccountsReceivable


Increase
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value-3452000.0939000.0-4232000.01914000.03001000.01348000.02334000.0-2751000.0-2874000.03539000.0641000.0-4395000.0-416000.0646000.01821000.04581000.0-1053000.0917000.01668000.0-882000.0-2913000.0-246000.0-160000.0618000.0220000.0170000.0-1717000.0-1742000.0569000.05759000.03761000.02322000.0-3356000.01321000.01318000.01981000.0-2585000.0-976000.02986000.0-67000.0-2326000.0263000.02633000.01701000.0-956000.0795000.0
Percentage of IncreaseDecreaseInAccountsReceivable100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncreaseDecreaseInAccountsReceivable us-gaap:ConsolidatedEntities

srt:Subsidiaries


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-3452000.0939000.0-4232000.01914000.03001000.01348000.02334000.0-2751000.0-2874000.03539000.0641000.0-4395000.0-416000.0646000.01821000.04581000.0
Percentage of IncreaseDecreaseInAccountsReceivable100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

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
Value374163625545786967177257583854454140964643-14.528505643455542395037494649354631442367305735466339
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 Revenues31.634.149.949.340.431.153.748.047.012.352.342.244.028.440.735.532.930.80.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:NetCashProvidedByUsedInOperatingActivities us-gaap:ConsolidatedEntities

srt:Subsidiaries


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
Value37416362554578696717725758385445
Percentage of NetCashProvidedByUsedInOperatingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.1
Percentage of Revenues31.634.149.949.340.431.153.748.047.012.352.342.244.028.440.735.5
Percentage of Revenues srt:Subsidiaries31.634.149.949.340.431.153.748.047.012.352.342.244.028.440.735.5

Net Income Loss

us-gaap:NetIncomeLoss

us-gaap:NetIncomeLoss


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value-0.1676.921182743.9968.022166.7726.2054.009121-42.923134473187.65321-14.0587.826-1.30145-63.941203.0568.536-3.5858.7742.193-2.21318107.1183.891-30.832166.7719.202-4.246.249-6.069-0.439-4.848-6.437-5.441-0.348
Percentage of NetIncomeLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues-0.15.715.0217.72.95.511.34.74.32.887.5-31.89.732.554.814.76.016.10.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Profit Loss

us-gaap:ProfitLoss

us-gaap:ProfitLoss


Profit
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value-0.1756.964192764.028.087166.826.2524.066122-43.262134473197.69821-12.377.884-1.32346-62.7203.0588.594-1.8698.8822.174-2.24521117.183.919-26.698176.8029.336-4.6026.611-6.234-0.49-4.991-6.616-5.6-0.399
Percentage of ProfitLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues-0.15.815.0219.02.95.611.54.74.32.888.2-32.09.832.855.414.86.016.20.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:ProfitLoss us-gaap:ConsolidatedEntities

srt:Subsidiaries


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
Value-0.1756.964192764.028.087166.826.2524.066122-43.262134473197.69821
Percentage of ProfitLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues-0.15.815.0219.02.95.611.54.74.32.888.2-32.09.832.855.414.86.016.2
Percentage of Revenues srt:Subsidiaries-0.15.815.0219.02.95.611.54.74.32.888.2-32.09.832.855.414.86.016.2

us-gaap:ProfitLoss us-gaap:ConsolidatedEntities, us-gaap:PartnerTypeOfPartnersCapitalAccount

srt:Subsidiaries, us-gaap:GeneralPartner


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
Value-0.1746.9652764.018.0756.8096.2394.032122-43.54212447319
Percentage of ProfitLoss99.4100.0100.099.899.999.899.899.2100.0100.697.9100.0100.099.9
Percentage of Revenues-0.15.8219.02.95.64.74.32.888.1-32.39.632.855.414.8
Percentage of Revenues srt:Subsidiaries us-gaap:GeneralPartner0.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:ProfitLoss us-gaap:ConsolidatedEntities, us-gaap:StatementEquityComponents

srt:Subsidiaries, 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
Value-0.001-0.001-0.0020.010.0120.0110.0130.0340.0090.020.0210.0050.0040.012
Percentage of ProfitLoss0.6-0.0-0.00.20.10.20.20.80.0-0.00.20.00.00.1
Percentage of Revenues-0.0-0.0-0.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of Revenues srt:Subsidiaries us-gaap:NoncontrollingInterest0.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:ProfitLoss us-gaap:EquityMethodInvestmentNonconsolidatedInvestee

us-gaap:EquityMethodInvestmentNonconsolidatedInvesteeOrGroupOfInvestees


Profit
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-30
Value-8.918-7.897-10.905-9.281-4.493-4.322-16.423-0.046-3.797
Percentage of ProfitLoss5096.0-113.4-57.1-3.4-111.8-53.4-97.3-0.7-60.7
Percentage of Revenues-7.4-6.5-8.6-7.4-3.3-3.0-11.2-0.0-2.6
Percentage of Revenues us-gaap:EquityMethodInvestmentNonconsolidatedInvesteeOrGroupOfInvestees-16.8-14.8-24.4-21.5-14.4-13.9-52.6-0.1-11.4

us-gaap:ProfitLoss us-gaap:StatementEquityComponents

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
Value-0.0080.0431.6120.0240.0650.0480.0470.0570.798-0.3420.1290.3760.6250.170.0450.169-0.1150.058-0.0220.389-0.560.1610.0020.058-0.090.108-0.019-0.0320.2170.1070.060.028-0.4890.2580.0310.134-0.3610.362-0.165-0.051-0.143-0.179-0.159-0.051
Percentage of ProfitLoss4.60.60.60.60.80.70.81.40.70.81.00.80.80.90.60.80.90.71.70.80.90.80.10.74.81.2-0.91.41.01.00.80.71.81.50.51.47.85.52.610.42.92.72.812.8
Percentage of Revenues-0.00.01.30.00.00.00.00.00.6-0.30.10.30.50.10.00.10.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of Revenues 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:RetainedEarnings


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
Value-0.1676.9212743.9968.0226.7726.2054.009121-43.18124473187.65321-12.2557.826-1.30145-62.14203.0568.536-1.7798.7742.193-2.21320107.123.891-26.209166.7719.202-4.2416.249-6.069-0.439-4.848-6.437-5.441-0.348
Percentage of ProfitLoss95.499.499.499.499.299.399.298.699.399.897.099.299.299.199.499.299.199.398.399.299.199.299.999.395.298.8100.998.699.099.099.299.398.298.599.598.692.294.597.489.697.197.397.287.2
Percentage of Revenues-0.15.7217.72.95.54.74.32.887.6-32.09.532.554.914.76.016.10.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of Revenues us-gaap:RetainedEarnings0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Share Based Compensation

us-gaap:ShareBasedCompensation

us-gaap:ShareBasedCompensation


Share
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value1718000.02606000.01083000.01082000.02113000.02349000.0731000.01010000.01686000.03449000.0573000.0471000.01407000.03265000.0562000.0616000.0581000.03124000.0698000.0665000.0651000.02296000.0753000.0744000.0812000.02756000.0515000.0-130000.0704000.03048000.01488000.01462000.01951000.02097000.01945000.01081000.01138000.0696000.01355000.01070000.01252000.01137000.01355000.0
Percentage of ShareBasedCompensation100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ShareBasedCompensation us-gaap:ConsolidatedEntities

srt:Subsidiaries


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
Value1718000.02606000.01083000.01082000.02113000.02349000.0731000.01010000.01686000.03449000.0573000.0471000.01407000.03265000.0562000.0591000.0
Percentage of ShareBasedCompensation100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.095.9

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-47.154-21.2494251-32.759-42.568-53.532-18.234-17.55-41.343-33.93-57.956-116.449-6.17162-7.3-6.99831-37.156-62.219-22.26762224-36.021-193.68138-176.037-33.36-13.023-48.36588-52.068-22.36490-115.9023217-7.954114-65.223-34.783-62.47-12.899-58.753-52.923-47.361
Percentage of NetCashProvidedByUsedInInvestingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues-39.3-17.633.440.7-23.9-29.3-36.4-12.5-12.2-28.7-24.4-42.9-87.0-4.546.7-5.7-5.524.30.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:NetCashProvidedByUsedInInvestingActivities us-gaap:ConsolidatedEntities

srt:Subsidiaries


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-47.154-21.2494251-32.759-42.568-53.532-18.234-17.55-41.343-33.93-57.956-116.449-6.17162-39.307
Percentage of NetCashProvidedByUsedInInvestingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0538.5
Percentage of Revenues-39.3-17.633.440.7-23.9-29.3-36.4-12.5-12.2-28.7-24.4-42.9-87.0-4.546.7-30.6
Percentage of Revenues srt:Subsidiaries-39.3-17.633.440.7-23.9-29.3-36.4-12.5-12.2-28.7-24.4-42.9-87.0-4.546.7-30.6

Payments To Acquire Real Estate

us-gaap:PaymentsToAcquireRealEstate

us-gaap:PaymentsToAcquireRealEstate


Payments
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-31
Value300.00.0110.00.00.00.01560.0152437340.00.00.0209.169201200.06.0380.0-1.567131400.0200.0680.00.09.2260.0180.0220.339
Percentage of PaymentsToAcquireRealEstate100.00.00.0100.00.00.00.00.0100.00.0100.0100.0100.0100.00.00.00.0100.0100.0100.0100.00.0100.00.0100.0100.0100.00.0100.00.0100.00.00.0100.00.0100.00.0100.0100.0

us-gaap:PaymentsToAcquireRealEstate us-gaap:ConsolidatedEntities

srt:Subsidiaries


Payments
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value300.00.0110.00.00.00.01560.015243734
Percentage of PaymentsToAcquireRealEstate100.00.00.0100.00.00.00.00.0100.00.0100.0100.0100.0100.0

us-gaap:PaymentsToAcquireRealEstate us-gaap:MortgageLoansOnRealEstateDescriptionTypeOfProperty, us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName

srt:OfficeBuilding, bdn:A150511RaceStreet


Payments
Period End2020-11-05
Value9.7
Percentage of PaymentsToAcquireRealEstate0.0

srt:OfficeBuilding, bdn:A250KingOfPrussiaRoad


Payments
Period End2020-11-30
Value20
Percentage of PaymentsToAcquireRealEstate0.0

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
Value11-20.524-121.573-95.927-30.403-40.28635-53.019-32.96315-86.856-37.032-34.865-34.32160-50.848-231.745-31.367-84.857-30.6-179.249-241.201-69.016-93.672-34.426-32.341-294.403427-28.233-28.991-47.735-27.8143-94.489-159.303-27.84-143.522247-142.8632.5454.672-11.593-110.082115-17.43413
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 Revenues9.4-17.0-95.9-76.1-22.2-27.823.9-36.5-22.910.5-62.4-27.4-26.1-25.245.3-39.6-181.3-24.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:NetCashProvidedByUsedInFinancingActivities us-gaap:ConsolidatedEntities

srt:Subsidiaries


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
Value11-20.524-121.573-95.927-30.403-40.28635-53.019-32.96315-86.856-37.032-34.865-34.32160-50.848
Percentage of NetCashProvidedByUsedInFinancingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues9.4-17.0-95.9-76.1-22.2-27.823.9-36.5-22.910.5-62.4-27.4-26.1-25.245.3-39.6
Percentage of Revenues srt:Subsidiaries9.4-17.0-95.9-76.1-22.2-27.823.9-36.5-22.910.5-62.4-27.4-26.1-25.245.3-39.6

Repayments Of Long Term Debt

us-gaap:RepaymentsOfLongTermDebt bdn:PropertyLocation

us-gaap:RepaymentsOfLongTermDebt

bdn:FourTowerBridge


Repayments
Period End2020-11-10
Value9.1
Percentage of RepaymentsOfLongTermDebt100.0

us-gaap:RepaymentsOfLongTermDebt bdn:PropertyLocation, us-gaap:LongtermDebtType

bdn:TwoLoganSquare, us-gaap:SecuredDebt


Repayments
Period End2020-10-21
Value79
Percentage of RepaymentsOfLongTermDebt0.0

us-gaap:RepaymentsOfLongTermDebt bdn:PropertyLocation, us-gaap:LongtermDebtType, us-gaap:SubsequentEventType

bdn:TwoLoganSquare, us-gaap:SecuredDebt, us-gaap:SubsequentEvent


Repayments
Period End2020-10-21
Value79
Percentage of RepaymentsOfLongTermDebt0.0

us-gaap:RepaymentsOfLongTermDebt us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName, us-gaap:LongtermDebtType

bdn:TwoLoganSquare, us-gaap:SecuredDebt


Repayments
Period End2020-10-21
Value79
Percentage of RepaymentsOfLongTermDebt0.0

Payments For Repurchase Of Common Stock

us-gaap:PaymentsForRepurchaseOfCommonStock

us-gaap:PaymentsForRepurchaseOfCommonStock


Payments
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312016-12-312015-12-312014-12-31
Value0.00.06.143530.00.00.017210.00.00.00.06.5030.0
Percentage of PaymentsForRepurchaseOfCommonStock0.00.0100.0100.00.00.00.0100.0100.00.00.00.00.0100.00.0

us-gaap:PaymentsForRepurchaseOfCommonStock us-gaap:ConsolidatedEntities

srt:Subsidiaries


Payments
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value0.00.06.143530.00.00.017210.00.00.0
Percentage of PaymentsForRepurchaseOfCommonStock0.00.0100.0100.00.00.00.0100.0100.00.00.00.0

Debt Instrument Interest Rate Stated Percentage

us-gaap:DebtInstrumentInterestRateStatedPercentage us-gaap:DebtInstrument, us-gaap:LongtermDebtType

us-gaap:DebtInstrumentInterestRateStatedPercentage

bdn:Note2023, us-gaap:UnsecuredDebt


Debt
Period End2021-06-302021-03-312020-12-312019-06-302019-03-312018-12-312017-11-092014-12-312012-12-31
Value3.953.953.950.03950.03950.03950.03950.03950.0395
Percentage of DebtInstrumentInterestRateStatedPercentage100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of LongTermDebtAndCapitalLeaseObligations0.00.00.00.00.00.00.00.00.0
Percentage of LongTermDebtAndCapitalLeaseObligations bdn:Note2023 us-gaap:UnsecuredDebt0.00.00.00.00.00.00.00.00.0

bdn:Note2024, us-gaap:UnsecuredDebt


Debt
Period End2021-06-302021-03-312020-12-312019-06-302019-03-312018-12-312014-12-312014-09-30
Value4.14.14.10.0410.0410.0410.0410.041
Percentage of DebtInstrumentInterestRateStatedPercentage103.8103.8103.8103.8103.8103.8103.80.0
Percentage of LongTermDebtAndCapitalLeaseObligations0.00.00.00.00.00.00.00.0
Percentage of LongTermDebtAndCapitalLeaseObligations bdn:Note2024 us-gaap:UnsecuredDebt0.00.00.00.00.00.00.00.0

bdn:Note2027, us-gaap:UnsecuredDebt


Debt
Period End2021-06-302021-03-312020-12-312019-06-302019-03-312018-12-312017-11-09
Value3.953.953.950.03950.03950.03950.0395
Percentage of DebtInstrumentInterestRateStatedPercentage100.0100.0100.0100.0100.0100.0100.0
Percentage of LongTermDebtAndCapitalLeaseObligations0.00.00.00.00.00.00.0
Percentage of LongTermDebtAndCapitalLeaseObligations bdn:Note2027 us-gaap:UnsecuredDebt0.00.00.00.00.00.00.0

bdn:Note2029, us-gaap:UnsecuredDebt


Debt
Period End2021-06-302021-03-312020-12-312019-06-302019-03-312018-12-312014-12-312014-09-30
Value4.554.554.550.04550.04550.04550.04550.046
Percentage of DebtInstrumentInterestRateStatedPercentage115.2115.2115.2115.2115.2115.2115.20.0
Percentage of LongTermDebtAndCapitalLeaseObligations0.00.00.00.00.00.00.00.0
Percentage of LongTermDebtAndCapitalLeaseObligations bdn:Note2029 us-gaap:UnsecuredDebt0.00.00.00.00.00.00.00.0

us-gaap:DebtInstrumentInterestRateStatedPercentage us-gaap:Range, us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName, us-gaap:DebtInstrument

srt:Maximum, bdn:MidAtlanticOfficeVenture, bdn:MidAtlanticOfficeJVLoan


Debt
Period End2020-12-21
Value5.6
Percentage of DebtInstrumentInterestRateStatedPercentage0.0
Percentage of LongTermDebtAndCapitalLeaseObligations0.0
Percentage of LongTermDebtAndCapitalLeaseObligations srt:Maximum bdn:MidAtlanticOfficeVenture bdn:MidAtlanticOfficeJVLoan0.0

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

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice


Share
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-312009-12-312008-12-31
Value11.9111.889.1315.6715.3615.4715.5515.3715.3715.515.515.415.3514.8414.8514.6414.4714.514.514.514.3714.5615.4820.41
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

bdn:AdjustmentIncreaseDecreaseOfRedeemablePartnershipUnitsToLiquidationValueAtPeriodEnd us-gaap:ConsolidatedEntities

bdn:AdjustmentIncreaseDecreaseOfRedeemablePartnershipUnitsToLiquidationValueAtPeriodEnd

srt:Subsidiaries


Adjustment
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-31
Value1066000.0-1294000.0400000.0-743000.05220000.0-695000.01014000.0-3088000.01264000.0-1991000.03604000.0
Percentage of AdjustmentIncreaseDecreaseOfRedeemablePartnershipUnitsToLiquidationValueAtPeriodEnd100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

bdn:AdjustmentIncreaseDecreaseOfRedeemablePartnershipUnitsToLiquidationValueAtPeriodEnd us-gaap:ConsolidatedEntities, us-gaap:PartnerTypeOfPartnersCapitalAccount

srt:Subsidiaries, us-gaap:GeneralPartner


Adjustment
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-31
Value1066000.0-1294000.0400000.0-743000.05220000.0-695000.01014000.0-3088000.01264000.0-1991000.03604000.0
Percentage of AdjustmentIncreaseDecreaseOfRedeemablePartnershipUnitsToLiquidationValueAtPeriodEnd100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

bdn:AdvancesToTenantForPurchaseOfTenantAssetsNetOfRepayments

bdn:AdvancesToTenantForPurchaseOfTenantAssetsNetOfRepayments


Advances
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-30
Value-733000.0443000.0-223000.0298000.0-978000.0-585000.0857000.0-449000.0
Percentage of AdvancesToTenantForPurchaseOfTenantAssetsNetOfRepayments100.0100.0100.0100.0100.0100.0100.0100.0

bdn:AdvancesToTenantForPurchaseOfTenantAssetsNetOfRepayments us-gaap:ConsolidatedEntities

srt:Subsidiaries


Advances
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-30
Value-733000.0443000.0-223000.0298000.0-978000.0-585000.0857000.0-449000.0
Percentage of AdvancesToTenantForPurchaseOfTenantAssetsNetOfRepayments100.0100.0100.0100.0100.0100.0100.0100.0

bdn:AnnualPreferredReturnOnInvestedCapital us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName

bdn:AnnualPreferredReturnOnInvestedCapital

bdn:AustinPreferredEquityInvestment


Annual
Period End2021-03-31
Value9.0
Percentage of AnnualPreferredReturnOnInvestedCapital100.0

bdn:AssetAcquisitionAssetsAcquiredAndLiabilitiesAssumedNet us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName

bdn:AssetAcquisitionAssetsAcquiredAndLiabilitiesAssumedNet

bdn:A150511RaceStreet


Asset
Period End2020-11-05
Value9952000.0
Percentage of AssetAcquisitionAssetsAcquiredAndLiabilitiesAssumedNet100.0

bdn:AssetAcquisitionBelowMarketLeaseObligation us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName

bdn:AssetAcquisitionBelowMarketLeaseObligation

bdn:A150511RaceStreet


Asset
Period End2020-11-05
Value2193000.0
Percentage of AssetAcquisitionBelowMarketLeaseObligation100.0

bdn:AssetAcquisitionBuildingLandAndImprovements us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName

bdn:AssetAcquisitionBuildingLandAndImprovements

bdn:A150511RaceStreet


Asset
Period End2020-11-05
Value9723000.0
Percentage of AssetAcquisitionBuildingLandAndImprovements100.0

bdn:AssetAcquisitionIntangibleAssets us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName

bdn:AssetAcquisitionIntangibleAssets

bdn:A150511RaceStreet


Asset
Period End2020-11-05
Value2422000.0
Percentage of AssetAcquisitionIntangibleAssets100.0

bdn:BasisAdjustmentsAndOther us-gaap:EquityMethodInvestmentNonconsolidatedInvestee

bdn:BasisAdjustmentsAndOther

us-gaap:EquityMethodInvestmentNonconsolidatedInvesteeOrGroupOfInvestees


Basis
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-30
Value-41000.0383000.054000.0-24000.0-11000.029000.08000.020000.0-17000.0
Percentage of BasisAdjustmentsAndOther100.0100.0100.0100.0100.0100.0100.0100.0100.0

bdn:ChangeInCapitalExpendituresFinancedThroughAccountsPayable

bdn:ChangeInCapitalExpendituresFinancedThroughAccountsPayable


Change
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-31
Value4.174-4.827-1.705-14.2398.74-2.745169.34-14.271-1.087.7923.628-1.524-1.112-5.4982.227-4.9551.27313-0.198-9.0494.235-5.1821.67-3.702-0.44
Percentage of ChangeInCapitalExpendituresFinancedThroughAccountsPayable100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

bdn:ChangeInCapitalExpendituresFinancedThroughAccountsPayable us-gaap:ConsolidatedEntities

srt:Subsidiaries


Change
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value4.174-4.827-1.705-14.2398.74-2.745169.34-14.271-1.087.7923.628-1.524-1.112-5.1382.227
Percentage of ChangeInCapitalExpendituresFinancedThroughAccountsPayable100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.093.5100.0

bdn:ChangeInCapitalExpendituresFinancedThroughRetentionPayableAtPeriodEnd

bdn:ChangeInCapitalExpendituresFinancedThroughRetentionPayableAtPeriodEnd


Change
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value1413000.0-3752000.0-470000.0532000.0245000.0-23000.04302000.0287000.0860000.0-4503000.0-5264000.03294000.0-150000.0-792000.0-242000.0-451000.0733000.0-199000.0-1639000.01478000.0256000.0753000.0-769000.01458000.03215000.02200000.0-2685000.0-2291000.0-1726000.0538000.0-532000.0388000.01045000.0-697000.0-282000.0-228000.0-219000.0163000.012076000.0-363000.0-349000.0-5151000.0-3428000.0-262000.0-896000.02520000.0
Percentage of ChangeInCapitalExpendituresFinancedThroughRetentionPayableAtPeriodEnd100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

bdn:ChangeInCapitalExpendituresFinancedThroughRetentionPayableAtPeriodEnd us-gaap:ConsolidatedEntities

srt:Subsidiaries


Change
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value1413000.0-3752000.0-470000.0532000.0245000.0-23000.04302000.0287000.0860000.0-4503000.0-5264000.03294000.0-150000.0-792000.0-242000.0-451000.0
Percentage of ChangeInCapitalExpendituresFinancedThroughRetentionPayableAtPeriodEnd100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

bdn:ChangeInMortgageNotesPayableForDeconsolidation

bdn:ChangeInMortgageNotesPayableForDeconsolidation


Change
Period End2020-12-31
Value0.0
Percentage of ChangeInMortgageNotesPayableForDeconsolidation0.0

bdn:IncomeLossFromRealEstateVenturesNetOfDistributions

bdn:IncomeLossFromRealEstateVenturesNetOfDistributions


Income
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value-7240000.0-6924000.0-8704000.0-5788000.0-2202000.0-1890000.0-5108000.0-1277000.0-2698000.0-1159000.0-10060000.0-118000.0-484000.0-2209000.0-3263000.0-879000.01428000.0-748000.0
Percentage of IncomeLossFromRealEstateVenturesNetOfDistributions100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

bdn:IncomeLossFromRealEstateVenturesNetOfDistributions us-gaap:ConsolidatedEntities

srt:Subsidiaries


Income
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value-7240000.0-6924000.0-8704000.0-5788000.0-2202000.0-1890000.0-5108000.0-1277000.0-2698000.0-1159000.0-10060000.0-118000.0-484000.0-2209000.0-3263000.0-879000.0
Percentage of IncomeLossFromRealEstateVenturesNetOfDistributions100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

bdn:IncomeLossfromEquityMethodInvestmentsBeforeBasisAdjustmentsAndOther us-gaap:EquityMethodInvestmentNonconsolidatedInvestee

bdn:IncomeLossfromEquityMethodInvestmentsBeforeBasisAdjustmentsAndOther

us-gaap:EquityMethodInvestmentNonconsolidatedInvesteeOrGroupOfInvestees


Income
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-30
Value-7281000.0-6541000.0-8648000.0-5812000.0-2214000.0-1862000.0-5100000.0-1945000.0-1508000.0
Percentage of IncomeLossfromEquityMethodInvestmentsBeforeBasisAdjustmentsAndOther100.0100.0100.0100.0100.0100.0100.0100.0100.0

bdn:IncreaseDecreaseInOtherAssetsFromDeconsolidation

bdn:IncreaseDecreaseInOtherAssetsFromDeconsolidation


Increase
Period End2021-06-302021-03-31
Value0-2688000.0
Percentage of IncreaseDecreaseInOtherAssetsFromDeconsolidation0.0100.0

bdn:IncreaseDecreaseInOtherAssetsFromDeconsolidation us-gaap:ConsolidatedEntities

srt:Subsidiaries


Increase
Period End2021-06-302021-03-31
Value0-2688000.0
Percentage of IncreaseDecreaseInOtherAssetsFromDeconsolidation0.0100.0

bdn:JointVentureFundingFromDebt us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName

bdn:JointVentureFundingFromDebt

bdn:MidAtlanticOfficeVenture


Joint
Period End2020-12-21
Value147
Percentage of JointVentureFundingFromDebt100.0

bdn:NetGainLossOnRealEstateVentureTransactionsIncludingRealEstateVentureFormation

bdn:NetGainLossOnRealEstateVentureTransactionsIncludingRealEstateVentureFormation


Net
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-31
Value0.00.0750.00.08.0452.0591.2760.2591040.00.03752130.0140.471103.1285.9297.2290.00.00.0
Percentage of NetGainLossOnRealEstateVentureTransactionsIncludingRealEstateVentureFormation0.0100.00.00.0100.0100.0100.0100.0100.00.00.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.00.00.00.0

bdn:NetGainLossOnRealEstateVentureTransactionsIncludingRealEstateVentureFormation us-gaap:ConsolidatedEntities

srt:Subsidiaries


Net
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value0.00.0750.00.08.0452.0591.2760.2591040.00.03752130.0
Percentage of NetGainLossOnRealEstateVentureTransactionsIncludingRealEstateVentureFormation0.0100.00.00.0100.0100.0100.0100.0100.00.00.0100.0100.0100.00.0

bdn:NetGainLossOnSaleOfUndepreciatedRealEstate

bdn:NetGainLossOnSaleOfUndepreciatedRealEstate


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302015-12-312015-09-30
Value01993000.000201000.00519000.0250000.0250000.01001000.0181000.002837000.022000.00953000.0009044000.0188000.003019000.0
Percentage of NetGainLossOnSaleOfUndepreciatedRealEstate0.0100.00.00.0100.00.0100.0100.0100.0100.0100.00.0100.0100.00.0100.00.00.0100.0100.00.0100.0

bdn:NetGainLossOnSaleOfUndepreciatedRealEstate us-gaap:ConsolidatedEntities

srt:Subsidiaries


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
Value01993000.000201000.00519000.0250000.0250000.01001000.0181000.002837000.022000.00953000.00
Percentage of NetGainLossOnSaleOfUndepreciatedRealEstate0.0100.00.00.0100.00.0100.0100.0100.0100.0100.00.0100.0100.00.0100.00.0

bdn:NetGainLossOnSaleOfUndepreciatedRealEstate us-gaap:RealEstateAndAccumulatedDepreciationDescriptionOfProperty

bdn:A3025JFKBoulevard


Net
Period End2021-02-02
Value2000000.0
Percentage of NetGainLossOnSaleOfUndepreciatedRealEstate0.0

bdn:NetIncomeLossAttributableToNoncontrollingInterestDiluted

bdn:NetIncomeLossAttributableToNoncontrollingInterestDiluted


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
Value-8000.043000.098000.01612000.024000.065000.0107000.048000.047000.057000.0798000.0-339000.0130000.0376000.0625000.0170000.045000.0169000.0
Percentage of NetIncomeLossAttributableToNoncontrollingInterestDiluted100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

bdn:NetIncomeLossAvailableToCommonUnitHoldersDiluted us-gaap:ConsolidatedEntities

bdn:NetIncomeLossAvailableToCommonUnitHoldersDiluted

srt:Subsidiaries


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
Value-0.2686.819182763.9177.944166.7166.1463.913122-43.362134473184.129
Percentage of NetIncomeLossAvailableToCommonUnitHoldersDiluted100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

bdn:NetIncomeLossAvailableToCommonUnitholdersBasic us-gaap:ConsolidatedEntities

bdn:NetIncomeLossAvailableToCommonUnitholdersBasic

srt:Subsidiaries


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
Value-0.2686.819182763.9177.944166.7166.1463.913122-43.362134473184.129
Percentage of NetIncomeLossAvailableToCommonUnitholdersBasic100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

bdn:NoncashOrPartNoncashDeconsolidationInvestingRealEstate

bdn:NoncashOrPartNoncashDeconsolidationInvestingRealEstate


Noncash
Period End2020-12-31
Value559
Percentage of NoncashOrPartNoncashDeconsolidationInvestingRealEstate100.0

bdn:NoncashOrPartNoncashDeconsolidationOperatingRealEstate

bdn:NoncashOrPartNoncashDeconsolidationOperatingRealEstate


Noncash
Period End2021-06-302021-03-312020-12-312017-12-312016-12-312015-12-31
Value0.0301580.00.00.0
Percentage of NoncashOrPartNoncashDeconsolidationOperatingRealEstate0.0100.0100.00.00.00.0

bdn:NoncashOrPartNoncashDeconsolidationOperatingRealEstate us-gaap:ConsolidatedEntities

srt:Subsidiaries


Noncash
Period End2021-06-302021-03-31
Value0.030
Percentage of NoncashOrPartNoncashDeconsolidationOperatingRealEstate0.0100.0

bdn:NoncashOrPartNoncashDispositionOfInvestingRealEstate

bdn:NoncashOrPartNoncashDispositionOfInvestingRealEstate


Noncash
Period End2021-06-302021-03-31
Value0.032
Percentage of NoncashOrPartNoncashDispositionOfInvestingRealEstate0.0100.0

bdn:NoncashOrPartNoncashDispositionOfInvestingRealEstate us-gaap:ConsolidatedEntities

srt:Subsidiaries


Noncash
Period End2021-06-302021-03-31
Value0.032
Percentage of NoncashOrPartNoncashDispositionOfInvestingRealEstate0.0100.0

bdn:NoncontrollingInterestIncreaseDecreaseFromReallocation us-gaap:StatementEquityComponents

bdn:NoncontrollingInterestIncreaseDecreaseFromReallocation

us-gaap:AdditionalPaidInCapital


Noncontrolling
Period End2021-06-302020-06-302019-09-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value-569000.0-123000.06000.057000.0-1995000.0-17000.02000.0-5000.0-182000.0-8000.0-11000.0-23000.0
Percentage of NoncontrollingInterestIncreaseDecreaseFromReallocation100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:NoncontrollingInterest


Noncontrolling
Period End2021-06-302020-06-302019-09-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value569000.0123000.0-6000.0-57000.01995000.017000.0-2000.05000.0182000.08000.011000.023000.0
Percentage of NoncontrollingInterestIncreaseDecreaseFromReallocation-100.0-100.0-100.0-100.0-100.0-100.0-100.0-100.0-100.0-100.0-100.0-100.0

bdn:PartnersCapitalAccountRepurchasedAndRetired us-gaap:ConsolidatedEntities

bdn:PartnersCapitalAccountRepurchasedAndRetired

srt:Subsidiaries


Partners
Period End2021-06-302020-06-302020-03-312019-06-302019-03-31
Value2.3346.141530.017
Percentage of PartnersCapitalAccountRepurchasedAndRetired100.0100.0100.00.0100.0

bdn:PartnersCapitalAccountRepurchasedAndRetired us-gaap:ConsolidatedEntities, us-gaap:PartnerTypeOfPartnersCapitalAccount

srt:Subsidiaries, us-gaap:GeneralPartner


Partners
Period End2021-06-302020-06-302020-03-312019-03-31
Value2.3346.1415317
Percentage of PartnersCapitalAccountRepurchasedAndRetired100.0100.0100.0100.0

bdn:PaymentOfOrdinaryDividendsCommonStockAndPreferredStock

bdn:PaymentOfOrdinaryDividendsCommonStockAndPreferredStock


Payment
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value32323232323333333333
Percentage of PaymentOfOrdinaryDividendsCommonStockAndPreferredStock100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

bdn:PaymentOfOrdinaryDividendsCommonStockAndPreferredStock us-gaap:ConsolidatedEntities

srt:Subsidiaries


Payment
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value32323232323333343333
Percentage of PaymentOfOrdinaryDividendsCommonStockAndPreferredStock100.6100.6100.6100.6100.6100.6100.6100.6100.6100.6

bdn:PaymentsOnAccountOfEmployeeTaxWithholdingsOnShareBasedAwards

bdn:PaymentsOnAccountOfEmployeeTaxWithholdingsOnShareBasedAwards


Payments
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-31
Value1065000.0758000.000624000.0722000.000324000.01230000.000552000.0942000.000545000.0129000.000590000.0289000.0
Percentage of PaymentsOnAccountOfEmployeeTaxWithholdingsOnShareBasedAwards100.0100.00.00.0100.0100.00.00.0100.0100.00.00.0100.0100.00.00.0100.0100.00.00.0100.0100.0

bdn:PaymentsOnAccountOfEmployeeTaxWithholdingsOnShareBasedAwards us-gaap:ConsolidatedEntities

srt:Subsidiaries


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
Value1065000.0758000.000624000.0722000.000324000.01230000.000552000.0942000.000
Percentage of PaymentsOnAccountOfEmployeeTaxWithholdingsOnShareBasedAwards100.0100.00.00.0100.0100.00.00.0100.0100.00.00.0100.0100.00.00.0

bdn:PaymentsToRedevelopRealEstate

bdn:PaymentsToRedevelopRealEstate


Payments
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
Value3.6666.3393.03.9784.7139.97319157.6591016217.7432.429129.456.9965.5051.0572.5192.1346.1999.44217155.9849.055.4223.7421.0310.9770.6122.2492.4272.8426.0122.5930.517
Percentage of PaymentsToRedevelopRealEstate100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

bdn:PaymentsToRedevelopRealEstate us-gaap:ConsolidatedEntities

srt:Subsidiaries


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
Value3.6666.3393.03.9784.7139.97319157.6591016217.7432.429129.45
Percentage of PaymentsToRedevelopRealEstate100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

bdn:ProceedsFromStockOptionsExercisedNet

bdn:ProceedsFromStockOptionsExercisedNet


Proceeds
Period End2021-06-302021-03-312020-06-302020-03-31
Value0-63000.0047000.0
Percentage of ProceedsFromStockOptionsExercisedNet0.0100.00.0100.0

bdn:ProceedsFromStockOptionsExercisedNet us-gaap:ConsolidatedEntities

srt:Subsidiaries


Proceeds
Period End2021-06-302021-03-312020-06-302020-03-31
Value0-63000.0047000.0
Percentage of ProceedsFromStockOptionsExercisedNet0.0100.00.0100.0

bdn:ShareIssuanceFromToDeferredCompensationPlan

bdn:ShareIssuanceFromToDeferredCompensationPlan


Share
Period End2021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302015-12-312015-09-30
Value-198000.0-2000.0-11000.0193000.000000111000.00720000.00048000.001000.002000.0
Percentage of ShareIssuanceFromToDeferredCompensationPlan100.0100.0100.0100.00.00.00.00.00.0100.00.0100.00.00.0100.00.0100.00.0100.0

bdn:ShareIssuanceFromToDeferredCompensationPlan us-gaap:ConsolidatedEntities

srt:Subsidiaries


Share
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
Value-198000.0-2000.0-11000.0193000.000000111000.00720000.00
Percentage of ShareIssuanceFromToDeferredCompensationPlan100.0100.0100.0100.00.00.00.00.00.0100.00.0100.00.0

bdn:ShareIssuanceFromToDeferredCompensationPlan us-gaap:ConsolidatedEntities, us-gaap:PartnerTypeOfPartnersCapitalAccount

srt:Subsidiaries, us-gaap:GeneralPartner


Share
Period End2021-03-312020-09-302020-06-302020-03-312018-12-312018-09-302018-06-302017-12-312017-09-30
Value-198000.0-2000.0-11000.0193000.000111000.0720000.00
Percentage of ShareIssuanceFromToDeferredCompensationPlan100.0100.0100.0100.00.00.0100.0100.00.0

bdn:ShareIssuanceFromToDeferredCompensationPlan us-gaap:StatementEquityComponents

bdn:CommonStockHeldInTrust


Share
Period End2021-06-302021-03-312020-06-302020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-30
Value-833000.0-142000.0-504000.0796000.0-23000.01599000.0619000.00-15000.0530000.01061000.0-1645000.0-17000.0-137000.0560000.00-60000.0589000.01237000.00-78000.0
Percentage of ShareIssuanceFromToDeferredCompensationPlan0.071.74581.8412.40.00.00.00.00.0477.50.0-228.50.00.01166.70.0-6000.00.00.00.0-3900.0

us-gaap:AdditionalPaidInCapital


Share
Period End2021-03-312020-09-302020-06-302020-03-312018-12-312018-09-302018-06-302017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302015-12-31
Value-198000.0-2000.0-11000.0193000.000112000.0720000.00048000.001000.00
Percentage of ShareIssuanceFromToDeferredCompensationPlan100.0100.0100.0100.00.00.0100.9100.00.00.0100.00.0100.00.0

us-gaap:DeferredCompensationShareBasedPayments


Share
Period End2021-06-302021-03-312020-06-302020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-30
Value833000.0142000.0504000.0-796000.023000.0-1599000.0-619000.0015000.0-530000.0-1061000.01645000.017000.0137000.0-560000.0060000.0-589000.0-1237000.0078000.0
Percentage of ShareIssuanceFromToDeferredCompensationPlan0.0-71.7-4581.8-412.40.00.00.00.00.0-477.50.0228.50.00.0-1166.70.06000.00.00.00.03900.0

bdn:StockIssuedDuringPeriodValueRedemptionOfLimitedPartnersUnits

bdn:StockIssuedDuringPeriodValueRedemptionOfLimitedPartnersUnits


Stock
Period End2021-06-302019-06-30
Value-2334000.00
Percentage of StockIssuedDuringPeriodValueRedemptionOfLimitedPartnersUnits100.00.0

bdn:StockIssuedDuringPeriodValueRedemptionOfLimitedPartnersUnits us-gaap:StatementEquityComponents

us-gaap:NoncontrollingInterest


Stock
Period End2021-06-302019-06-30
Value-2334000.016000.0
Percentage of StockIssuedDuringPeriodValueRedemptionOfLimitedPartnersUnits100.00.0

bdn:StraightLineGroundRentExpense

bdn:StraightLineGroundRentExpense


Straight
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value208000.0297000.0363000.0363000.0363000.0366000.0367000.0366000.0386000.0351000.0124000.0124000.085000.022000.022000.022000.022000.022000.022000.022000.022000.022000.022000.022000.022000.022000.023000.022000.022000.022000.0223000.0392000.0420000.0474000.0474000.0474000.0475000.0474000.0474000.0475000.0474000.0501000.0475000.0432000.0370000.0370000.0
Percentage of StraightLineGroundRentExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

bdn:StraightLineGroundRentExpense us-gaap:ConsolidatedEntities

srt:Subsidiaries


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
Value208000.0297000.0363000.0363000.0363000.0366000.0367000.0366000.0386000.0351000.0124000.0124000.085000.022000.022000.022000.0
Percentage of StraightLineGroundRentExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

bdn:StraightLineRentExcludingRentTerminationFee

bdn:StraightLineRentExcludingRentTerminationFee


Straight
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value3.3874.0855.844.4872.2332.1833.0821.8622.264.1652.1812.3162.8084.9786.1137.8987.2095.895
Percentage of StraightLineRentExcludingRentTerminationFee100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

bdn:StraightLineRentExcludingRentTerminationFee us-gaap:ConsolidatedEntities

srt:Subsidiaries


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
Value3.3874.0855.844.4872.2332.1833.0821.8622.264.1652.1812.3162.8084.9786.1137.898
Percentage of StraightLineRentExcludingRentTerminationFee100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

bdn:ThirdPartyManagementExpenses

bdn:ThirdPartyManagementExpenses


Third
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value3.5612.9782.7062.5092.3752.6622.2132.4692.4492.1172.3052.6122.2434.752.5692.6192.325
Percentage of ThirdPartyManagementExpenses100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

bdn:ThirdPartyManagementExpenses us-gaap:ConsolidatedEntities

srt:Subsidiaries


Third
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value3.5612.9782.7062.5092.3752.6622.2132.4692.4492.1172.3052.6122.2434.752.5692.6192.325
Percentage of ThirdPartyManagementExpenses100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

bdn:ThresholdAgeForQualifyingRetirement

bdn:ThresholdAgeForQualifyingRetirement


Threshold
Period End2021-03-31
Value57.0
Percentage of ThresholdAgeForQualifyingRetirement100.0

us-gaap:AmortizationOfAboveAndBelowMarketLeases

us-gaap:AmortizationOfAboveAndBelowMarketLeases


Amortization
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-31
Value-1223000.0-1350000.0-1210000.0-1040000.0-1122000.0-1495000.0-1621000.0-3742000.0-1689000.0-1805000.0-1031000.0-735000.0-785000.0-793000.0-791000.0-512000.0-430000.0-1338000.0-1439000.0-1505000.0-1353000.0-2232000.0-2487000.0-2840000.0-1343000.0-1290000.0-1171000.0-1508000.0-1741000.0-1957000.0-1798000.0-1816000.0-1785000.0-1771000.0-1616000.0-1546000.0-1503000.0-1419000.0-1373000.0
Percentage of AmortizationOfAboveAndBelowMarketLeases100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AmortizationOfAboveAndBelowMarketLeases us-gaap:ConsolidatedEntities

srt:Subsidiaries


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-1223000.0-1350000.0-1210000.0-1040000.0-1122000.0-1495000.0-1621000.0-3742000.0-1689000.0-1805000.0-1031000.0-735000.0-785000.0-793000.0-791000.0-512000.0
Percentage of AmortizationOfAboveAndBelowMarketLeases100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AmortizationOfDebtDiscountPremium

us-gaap:AmortizationOfDebtDiscountPremium


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
Value-487000.0-488000.0-513000.0733000.0-393000.0-395000.0-338000.0176000.0176000.0175000.0175000.0176000.0175000.0176000.0500000.0351000.0356000.0362000.0363000.0363000.0363000.0382000.0-248000.0-189000.0-160000.0-158000.0-76000.0-131000.0-162000.0-162000.01368000.0364000.0382000.0366000.0665000.0350000.0380000.0365000.0539000.0499000.0312000.0217000.0241000.0100000.0180000.0310000.0
Percentage of AmortizationOfDebtDiscountPremium100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AmortizationOfDebtDiscountPremium us-gaap:ConsolidatedEntities

srt:Subsidiaries


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-487000.0-488000.0-513000.0733000.0-393000.0-395000.0-338000.0176000.0176000.0175000.0175000.0176000.0175000.0176000.0500000.0351000.0
Percentage of AmortizationOfDebtDiscountPremium100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:CommonStockDividendsPerShareDeclared

us-gaap:CommonStockDividendsPerShareDeclared


Common
Period End2021-06-302021-03-312020-06-302020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value0.190.190.190.190.190.190.190.190.180.180.180.180.160.160.160.160.160.160.150.150.150.150.150.150.150.150.150.150.151.310.150.150.15
Percentage of CommonStockDividendsPerShareDeclared100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:CostOfOtherPropertyOperatingExpense

us-gaap:CostOfOtherPropertyOperatingExpense


Cost
Period 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
Value292829313337373838393937
Percentage of CostOfOtherPropertyOperatingExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:CostOfOtherPropertyOperatingExpense us-gaap:ConsolidatedEntities

srt:Subsidiaries


Cost
Period 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
Value292829313337373838393937
Percentage of CostOfOtherPropertyOperatingExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DebtInstrumentBasisSpreadOnVariableRate1 us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName, us-gaap:DebtInstrument, us-gaap:VariableRate

us-gaap:DebtInstrumentBasisSpreadOnVariableRate1

bdn:MidAtlanticOfficeVenture, bdn:MidAtlanticOfficeJVLoan, us-gaap:LondonInterbankOfferedRateLIBOR


Debt
Period End2020-12-21
Value3.15
Percentage of DebtInstrumentBasisSpreadOnVariableRate1100.0

us-gaap:DeconsolidationGainOrLossAmount us-gaap:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations

us-gaap:DeconsolidationGainOrLossAmount

bdn:OneandTwoCommerceSquare


Deconsolidation
Period End2020-09-30
Value271
Percentage of DeconsolidationGainOrLossAmount100.0

us-gaap:Depreciation us-gaap:ChangeInAccountingEstimateByType

us-gaap:Depreciation

us-gaap:ServiceLife


Depreciationus-gaap:
Period End2021-06-30
Value3.3
Percentage of Depreciation100.0

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
Value42404243495251555151434343434642444546464648585850515052525247504949484849505354585157515152
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 us-gaap:ConsolidatedEntities

srt:Subsidiaries


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
Value4240424349525155515143434343464244
Percentage of DepreciationAndAmortization100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DepreciationAndAmortization us-gaap:EquityMethodInvestmentNonconsolidatedInvestee

us-gaap:EquityMethodInvestmentNonconsolidatedInvesteeOrGroupOfInvestees


Depreciation
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-30
Value252423221212131313
Percentage of DepreciationAndAmortization59.661.754.351.325.424.125.523.526.1

us-gaap:DistributionsPerGeneralPartnershipUnitOutstanding us-gaap:ConsolidatedEntities, us-gaap:PartnerTypeOfPartnersCapitalAccount

us-gaap:DistributionsPerGeneralPartnershipUnitOutstanding

srt:Subsidiaries, us-gaap:GeneralPartner


Distributions
Period End2021-06-302021-03-312020-06-302020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value0.190.190.190.190.190.190.190.190.180.180.180.180.16
Percentage of DistributionsPerGeneralPartnershipUnitOutstanding100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DividendsCommonStock

us-gaap:DividendsCommonStock


Dividends
Period End2021-05-182021-02-242020-12-082020-09-152020-05-202020-02-272019-12-112019-09-102019-05-222019-02-212018-12-312018-09-302018-02-282017-12-072017-09-122017-05-182016-09-132016-05-24
Value32323232323233333333330.0323228282828
Percentage of DividendsCommonStock100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0

us-gaap:DividendsCommonStock us-gaap:ConsolidatedEntities

srt:Subsidiaries


Dividends
Period End2021-05-182021-02-242020-09-152020-05-202020-02-272019-12-112019-09-102019-05-222019-02-212018-12-062018-09-112018-02-28
Value323232323233333333333232
Percentage of DividendsCommonStock100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.0100.0

us-gaap:DividendsCommonStockCash

us-gaap:DividendsCommonStockCash


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
Value323232323233333333323232322828282828282626262727272723232323232121222221212162-20.789-142.9962060-20.081
Percentage of DividendsCommonStockCash100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DividendsCommonStockCash 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
Value323232323233333333323232322828282828272626262727262623232323232121212121212061-20.37-140.0482059-19.66
Percentage of DividendsCommonStockCash99.599.499.499.499.499.499.499.499.499.299.299.299.299.299.299.299.299.299.299.199.199.199.299.299.299.198.998.998.998.998.998.798.797.998.298.498.295.098.098.097.998.097.997.9

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
Value0.1570.1870.1870.1870.1870.1870.1870.1870.1870.2660.2670.2660.2660.2370.2370.2370.2370.2370.2370.230.230.230.2310.230.2290.2580.2650.2650.2650.2650.2650.2760.2760.4730.3980.3620.4041.0661.243-0.419-2.9480.4221.264-0.421
Percentage of DividendsCommonStockCash0.50.60.60.60.60.60.60.60.60.80.80.80.80.80.80.80.80.80.80.90.90.90.80.80.80.91.11.11.11.11.11.31.32.11.81.61.85.02.02.02.12.02.12.1

us-gaap:EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsCapitalizedAmount us-gaap:AwardType

us-gaap:EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsCapitalizedAmount

bdn:RestrictedPerformanceShareUnitsPlan


Employee
Period End2021-03-312020-03-312019-03-312018-03-312017-03-312016-03-312015-03-312014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-30
Value100000.0100000.0400000.0500000.0500000.0500000.0500000.0200000.0400000.0800000.0200000.0200000.0300000.0600000.0200000.0200000.0200000.0200000.0100000.0
Percentage of EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsCapitalizedAmount100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:RestrictedStock


Employee
Period End2021-03-312020-03-312019-03-312018-03-312017-03-312016-03-312015-03-312014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302011-12-312011-09-30
Value300000.0300000.0200000.0300000.0300000.0300000.0300000.0100000.0200000.0200000.0100000.0100000.0200000.0400000.0200000.0200000.0200000.0200000.0
Percentage of EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsCapitalizedAmount300.0300.050.060.060.060.060.050.050.025.050.050.066.766.7100.0100.0100.0200.0

us-gaap:GainLossOnSaleOfProperties

us-gaap:GainLossOnSaleOfProperties


Gain
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-31
Value0.0682.067142710.2012.5860.5190.6060.251.0013.1480.02.8020.022230.9531.0887.323110.084-0.7271153.8239.1021.5719.0190.2033.7950.91.187260.0-2.265.3040.0019.93910143.3810.03.8362.7914.665
Percentage of GainLossOnSaleOfProperties100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0

us-gaap:GainLossOnSaleOfProperties us-gaap:ConsolidatedEntities

srt:Subsidiaries


Gain
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value0.0682.067142710.2012.5860.5190.6060.251.0013.1480.02.8020.022230.953
Percentage of GainLossOnSaleOfProperties100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0

us-gaap:IncomeLossFromEquityMethodInvestments

us-gaap:IncomeLossFromEquityMethodInvestments


Income
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value-7240000.0-6924000.0-8702000.0-5788000.0-2203000.0-1891000.0-5108000.0-1965000.0-1491000.0-1358000.0-14049000.01000.0-358000.0-825000.0-2919000.0-5723000.01084000.0-748000.0-2180000.0-7254000.0-1666000.0-403000.01024000.0-1093000.0-873000.0131000.0-57000.0-486000.0-489000.0242000.0-93000.0714000.01508000.01535000.01359000.0500000.0838000.044000.01036000.0418000.01088000.01233000.01949000.01035000.01025000.01296000.0
Percentage of IncomeLossFromEquityMethodInvestments100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncomeLossFromEquityMethodInvestments us-gaap:ConsolidatedEntities

srt:Subsidiaries


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
Value-7240000.0-6924000.0-8702000.0-5788000.0-2203000.0-1891000.0-5108000.0-1965000.0-1491000.0-1358000.0-14049000.01000.0-358000.0-825000.0-2919000.0-5723000.01084000.0
Percentage of IncomeLossFromEquityMethodInvestments100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncomeLossFromEquityMethodInvestments us-gaap:EquityMethodInvestmentNonconsolidatedInvestee

us-gaap:EquityMethodInvestmentNonconsolidatedInvesteeOrGroupOfInvestees


Income
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-30
Value-7240000.0-6924000.0-8702000.0-5788000.0-2203000.0-1891000.0-5108000.0-1965000.0-1491000.0
Percentage of IncomeLossFromEquityMethodInvestments100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncomeLossFromEquityMethodInvestments us-gaap:StatementBusinessSegments

bdn:MAPVenture


Income
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-31
Value-1918000.0-2435000.0-1727000.0-1684000.0-1639000.0-1520000.0-1688000.0-1602000.0-1445000.0-1367000.0-144000.0-444000.0-830000.0-736000.0-833000.0-706000.0-787000.0-1117000.0-1610000.0-1010000.0-1042000.0-556000.00000
Percentage of IncomeLossFromEquityMethodInvestments26.535.219.829.174.480.433.081.596.9100.71.0-44400.0231.889.228.512.3-72.6149.373.913.962.5138.00.0-0.0-0.00.0

bdn:MetropolitanDC


Income
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-31
Value-778000.0-417000.0-556000.0-1367000.0-647000.0-449000.0-3271000.0-528000.0-260000.0-175000.0-14634000.0-31000.0-363000.0-37000.0-172000.0-5264000.0-75000.0467000.0-225000.0-5287000.0-332000.0-448000.0236000.0-343000.0-179000.0-50000.0
Percentage of IncomeLossFromEquityMethodInvestments10.76.06.423.629.423.764.026.917.412.9104.2-3100.0101.44.55.992.0-6.9-62.410.372.919.9111.223.031.420.5-38.2

bdn:MidAtlanticOfficeJointVenture


Income
Period End2021-06-302021-03-31
Value117000.0207000.0
Percentage of IncomeLossFromEquityMethodInvestments-1.6-3.0

bdn:PhiladelphiaCBD


Income
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-31
Value-4661000.0-4279000.0-6515000.0-2737000.083000.078000.0111000.055000.084000.078000.078000.0-36000.089000.0-236000.0142000.0134000.045000.0-67000.0-213000.0-453000.0-475000.0455000.0448000.0-186000.0-150000.0-300000.0
Percentage of IncomeLossFromEquityMethodInvestments64.461.874.947.3-3.8-4.1-2.2-2.8-5.6-5.7-0.6-3600.0-24.928.6-4.9-2.34.29.09.86.228.5-112.943.817.017.2-229.0

us-gaap:IncreaseDecreaseInAccountsPayableAndAccruedLiabilities

us-gaap:IncreaseDecreaseInAccountsPayableAndAccruedLiabilities


Increase
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value-17.4224.9913.59214-3.002-1.213-5.79312-1.674-10.822113.856-1.166-1.146-2.7398.923-11.2699.089-15.16712-11.4256.296-9.73616-13.39211-8.34212-17.21514-15.2115-12.04510-17.9221-17.225.674-13.6525-19.81415-19.21818-13.5136.424
Percentage of IncreaseDecreaseInAccountsPayableAndAccruedLiabilities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncreaseDecreaseInAccountsPayableAndAccruedLiabilities us-gaap:ConsolidatedEntities

srt:Subsidiaries


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-17.4224.9913.59214-3.002-1.213-5.79312-1.674-10.822113.856-1.166-1.146-2.7398.923
Percentage of IncreaseDecreaseInAccountsPayableAndAccruedLiabilities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncreaseDecreaseInContractWithCustomerLiability

us-gaap:IncreaseDecreaseInContractWithCustomerLiability


Increase
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value585000.01302000.0-3293000.0-3438000.0-5188000.0-230000.012959000.01393000.0-1885000.0-3148000.06478000.0-2086000.0-3670000.02295000.0
Percentage of IncreaseDecreaseInContractWithCustomerLiability100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncreaseDecreaseInContractWithCustomerLiability us-gaap:ConsolidatedEntities

srt:Subsidiaries


Increase
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value585000.01302000.0-3293000.0-3438000.0-5188000.0-230000.012959000.01393000.0-1885000.0-3148000.06478000.0-2086000.0
Percentage of IncreaseDecreaseInContractWithCustomerLiability100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncreaseDecreaseInOtherOperatingAssets

us-gaap:IncreaseDecreaseInOtherOperatingAssets


Increase
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value-8.08610-2.4934.212-11.23314-22.4575.375-31.374394.5036.175-9.25512-10.1155.927-7.92610-10.1779.434-8.2959.193-10.3488.198-8.0099.322-6.20611-8.977.508-11.19812-11.3614.772-9.61712-8.8893.629-2.9177.231-6.3244.093-13.26918-6.4614.387
Percentage of IncreaseDecreaseInOtherOperatingAssets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncreaseDecreaseInOtherOperatingAssets us-gaap:ConsolidatedEntities

srt:Subsidiaries


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-8.08610-2.4934.212-11.23314-22.4575.375-31.374394.5036.175-9.25512-10.1136.099
Percentage of IncreaseDecreaseInOtherOperatingAssets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0102.9

us-gaap:IncreaseDecreaseInOtherOperatingLiabilities

us-gaap:IncreaseDecreaseInOtherOperatingLiabilities


Increase
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value-3.9-3.8126.0085.0940.0953.36-7.803-0.001-20.77192.6120.5250.503-0.738-1.2780.9761.137-0.0060.367-0.2740.040.5520.564-3.3991.081-0.14-1.191-1.8890.328-0.199-2.1031.2440.562-0.088-0.4150.263-0.924-0.514-5.7091.409-0.5524.4270.0336.887-3.0961.19
Percentage of IncreaseDecreaseInOtherOperatingLiabilities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncreaseDecreaseInOtherOperatingLiabilities us-gaap:ConsolidatedEntities

srt:Subsidiaries


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-3.9-3.8126.0085.0940.0953.36-7.803-0.001-20.77192.6120.5250.503-0.738-1.2780.976
Percentage of IncreaseDecreaseInOtherOperatingLiabilities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncrementalCommonSharesAttributableToShareBasedPaymentArrangements

us-gaap:IncrementalCommonSharesAttributableToShareBasedPaymentArrangements


Incremental
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302012-12-312012-09-302012-06-302012-03-312011-09-302011-03-31
Value247300.01011400.035971.0453460.0251980.0583490.02653.0555360.0547620.0606860.0-114810.001144800.01392800.040065.01401400.01423300.01024900.0-40173.01237500.00682470.0-789780.0588650.0678600.01092300.0-1487000.01587100.00064469.01288700.01343800.00703520.0001279000.00
Percentage of IncrementalCommonSharesAttributableToShareBasedPaymentArrangements100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.00.00.0100.0100.0100.00.0100.00.00.0100.00.0

us-gaap:IncrementalCommonSharesAttributableToShareBasedPaymentArrangements us-gaap:ConsolidatedEntities

srt:Subsidiaries


Incremental
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value247300.01011400.035971.0453460.0251980.0583490.02653.0555360.0547620.0606860.0-114810.001144800.01392800.040065.01401400.01423300.0
Percentage of IncrementalCommonSharesAttributableToShareBasedPaymentArrangements100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0

us-gaap:InterestExpenseOther

us-gaap:InterestExpenseOther


Interest
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-30
Value151617162020202020200.00.00.00.00.00.1560.2420.2810.3310.2960.3240.2860.2830.2730.3160.2720.2790.2640.2110.2180.2420.23
Percentage of InterestExpenseOther100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.00.00.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:InterestExpenseOther us-gaap:ConsolidatedEntities

srt:Subsidiaries


Interest
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value15161716202020202020
Percentage of InterestExpenseOther100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:InterestExpenseOther us-gaap:EquityMethodInvestmentNonconsolidatedInvestee

us-gaap:EquityMethodInvestmentNonconsolidatedInvesteeOrGroupOfInvestees


Interest
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-30
Value8.0177.3746.3416.1755.1554.9895.4876.186.32
Percentage of InterestExpenseOther51.845.336.437.925.524.927.130.330.8

us-gaap:InterestIncomeOther

us-gaap:InterestIncomeOther


Interest
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-30
Value452000.0467000.0445000.0575000.0682000.0558000.0553000.0525000.02139000.01220000.0641000.0703000.0478000.079000.0163000.0393000.0266000.0291000.0359000.0320000.035000.0126000.0313000.0750000.02676000.0528000.0385000.0385000.0596000.0268000.0122000.0
Percentage of InterestIncomeOther100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:InterestIncomeOther us-gaap:ConsolidatedEntities

srt:Subsidiaries


Interest
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value452000.0467000.0445000.0575000.0682000.0558000.0553000.0525000.02139000.01220000.0641000.0703000.0478000.079000.0163000.0
Percentage of InterestIncomeOther100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:InterestPaidCapitalized

us-gaap:InterestPaidCapitalized


Interest
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-31
Value2.3131.4211.1881.1211.141.2010.7810.00.7370.7281.0081.0010.890.6870.5520.4520.8141.7092.8122.6363.7163.6713.3863.1412.922.7032.3361.741.4961.230.00.7070.680.6250.5820.7710.740.4670.5470.5910.4790.380.917
Percentage of InterestPaidCapitalized100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:InterestPaidCapitalized us-gaap:ConsolidatedEntities

srt:Subsidiaries


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
Value2.3131.4211.1881.1211.141.2010.7810.00.7370.7281.0081.0010.890.6870.5520.452
Percentage of InterestPaidCapitalized100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:InvestmentIncomeNet

us-gaap:InvestmentIncomeNet


Investment
Period End2021-06-302021-03-312020-06-302020-03-31
Value1677000.01674000.0445000.0575000.0
Percentage of InvestmentIncomeNet100.0100.0100.0100.0

us-gaap:InvestmentIncomeNet us-gaap:ConsolidatedEntities

srt:Subsidiaries


Investment
Period End2021-06-302021-03-312020-06-302020-03-31
Value1677000.01674000.0445000.0575000.0
Percentage of InvestmentIncomeNet100.0100.0100.0100.0

us-gaap:NetIncomeLossAllocatedToLimitedPartners us-gaap:ConsolidatedEntities

us-gaap:NetIncomeLossAllocatedToLimitedPartners

srt:Subsidiaries


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value-0.1746.965192764.018.075166.8096.2394.032123-43.5421244
Percentage of NetIncomeLossAllocatedToLimitedPartners100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:NoncontrollingInterestDecreaseFromDeconsolidation

us-gaap:NoncontrollingInterestDecreaseFromDeconsolidation


Noncontrolling
Period End2020-09-30
Value1017000.0
Percentage of NoncontrollingInterestDecreaseFromDeconsolidation100.0

us-gaap:NoncontrollingInterestDecreaseFromDeconsolidation us-gaap:ConsolidatedEntities

srt:Subsidiaries


Noncontrolling
Period End2020-09-30
Value1017000.0
Percentage of NoncontrollingInterestDecreaseFromDeconsolidation100.0

us-gaap:NoncontrollingInterestDecreaseFromDeconsolidation us-gaap:ConsolidatedEntities, us-gaap:StatementEquityComponents

srt:Subsidiaries, us-gaap:NoncontrollingInterest


Noncontrolling
Period End2020-09-30
Value1017000.0
Percentage of NoncontrollingInterestDecreaseFromDeconsolidation100.0

us-gaap:NoncontrollingInterestDecreaseFromDeconsolidation us-gaap:StatementEquityComponents

us-gaap:NoncontrollingInterest


Noncontrolling
Period End2020-09-30
Value1017000.0
Percentage of NoncontrollingInterestDecreaseFromDeconsolidation100.0

us-gaap:NoncontrollingInterestInNetIncomeLossJointVenturePartnersRedeemable us-gaap:ConsolidatedEntities

us-gaap:NoncontrollingInterestInNetIncomeLossJointVenturePartnersRedeemable

srt:Subsidiaries


Noncontrolling
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value-1000.0-1000.00-2000.010000.012000.011000.011000.013000.034000.09000.020000.021000.05000.04000.012000.08000.0
Percentage of NoncontrollingInterestInNetIncomeLossJointVenturePartnersRedeemable100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:NoncontrollingInterestIncreaseFromSubsidiaryEquityIssuance

us-gaap:NoncontrollingInterestIncreaseFromSubsidiaryEquityIssuance


Noncontrolling
Period End2021-06-302019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-31
Value2289000.02000.03000.023000.005000.0-4000.015000.0052000.04000.029000.035000.019000.036000.018000.000000000000-11000.0
Percentage of NoncontrollingInterestIncreaseFromSubsidiaryEquityIssuance100.0100.0100.0100.00.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.00.00.00.00.00.00.00.00.00.00.00.0100.0

us-gaap:NoncontrollingInterestIncreaseFromSubsidiaryEquityIssuance us-gaap:ConsolidatedEntities

srt:Subsidiaries


Noncontrolling
Period End2021-06-302019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value2289000.02000.03000.023000.005000.0-4000.015000.0-1000.053000.0
Percentage of NoncontrollingInterestIncreaseFromSubsidiaryEquityIssuance100.0100.0100.0100.00.0100.0100.0100.00.0101.9

us-gaap:NoncontrollingInterestIncreaseFromSubsidiaryEquityIssuance us-gaap:ConsolidatedEntities, us-gaap:PartnerTypeOfPartnersCapitalAccount

srt:Subsidiaries, us-gaap:GeneralPartner


Noncontrolling
Period End2021-06-30
Value2289000.0
Percentage of NoncontrollingInterestIncreaseFromSubsidiaryEquityIssuance100.0

us-gaap:NoncontrollingInterestIncreaseFromSubsidiaryEquityIssuance us-gaap:StatementEquityComponents

us-gaap:NoncontrollingInterest


Noncontrolling
Period End2021-06-302019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-31
Value2289000.02000.03000.023000.005000.0-4000.015000.0052000.04000.029000.035000.019000.036000.018000.00-61000.0-12000.0-20000.0794000.01184000.0-16000.04000.012000.027000.0720000.019000.0-3934000.0
Percentage of NoncontrollingInterestIncreaseFromSubsidiaryEquityIssuance100.0100.0100.0100.00.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.00.00.00.00.00.00.00.00.00.00.00.00.035763.6

us-gaap:OperatingLeaseLeaseIncome

us-gaap:OperatingLeaseLeaseIncome


Operating
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-30
Value108110118129135139137133128
Percentage of OperatingLeaseLeaseIncome100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OperatingLeaseLeaseIncomeLeasePayments

us-gaap:OperatingLeaseLeaseIncomeLeasePayments


Operating
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-31
Value868695101104110109104
Percentage of OperatingLeaseLeaseIncomeLeasePayments100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OperatingLeaseVariableLeaseIncome

us-gaap:OperatingLeaseVariableLeaseIncome


Operating
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-31
Value2224222730282828
Percentage of OperatingLeaseVariableLeaseIncome100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherComprehensiveIncomeLossDerivativeExcludedComponentIncreaseDecreaseAdjustmentsAfterTax

us-gaap:OtherComprehensiveIncomeLossDerivativeExcludedComponentIncreaseDecreaseAdjustmentsAfterTax


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value-188000.0-188000.0-188000.0-188000.0-188000.0-188000.0-188000.0-188000.0-188000.0-206000.0
Percentage of OtherComprehensiveIncomeLossDerivativeExcludedComponentIncreaseDecreaseAdjustmentsAfterTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherComprehensiveIncomeLossDerivativeExcludedComponentIncreaseDecreaseAdjustmentsAfterTax us-gaap:ConsolidatedEntities

srt:Subsidiaries


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value-188000.0-188000.0-188000.0-188000.0-188000.0-188000.0-188000.0-188000.0-188000.0-206000.0
Percentage of OtherComprehensiveIncomeLossDerivativeExcludedComponentIncreaseDecreaseAdjustmentsAfterTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherComprehensiveIncomeLossDerivativeExcludedComponentIncreaseDecreaseBeforeAdjustmentsAfterTax

us-gaap:OtherComprehensiveIncomeLossDerivativeExcludedComponentIncreaseDecreaseBeforeAdjustmentsAfterTax


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value860000.0910000.01007000.01040000.038000.0-8057000.0999000.0-1586000.0-4934000.0-2689000.0
Percentage of OtherComprehensiveIncomeLossDerivativeExcludedComponentIncreaseDecreaseBeforeAdjustmentsAfterTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherComprehensiveIncomeLossDerivativeExcludedComponentIncreaseDecreaseBeforeAdjustmentsAfterTax us-gaap:ConsolidatedEntities

srt:Subsidiaries


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value860000.0910000.01007000.01040000.038000.0-8057000.0999000.0-1586000.0-4934000.0-2689000.0
Percentage of OtherComprehensiveIncomeLossDerivativeExcludedComponentIncreaseDecreaseBeforeAdjustmentsAfterTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:PartnersCapitalAccountDistributions us-gaap:ConsolidatedEntities

us-gaap:PartnersCapitalAccountDistributions

srt:Subsidiaries


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
Value3232323232333333333232323228
Percentage of PartnersCapitalAccountDistributions100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:PartnersCapitalAccountDistributions us-gaap:ConsolidatedEntities, us-gaap:PartnerTypeOfPartnersCapitalAccount

srt:Subsidiaries, us-gaap:GeneralPartner


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
Value3232323232333333333232323228
Percentage of PartnersCapitalAccountDistributions100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:PaymentsForLeasingCosts

us-gaap:PaymentsForLeasingCosts


Payments
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value6.4742.7130.6472.7498.6835.3152.3013.7443.7445.696
Percentage of PaymentsForLeasingCosts100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:PaymentsForLeasingCosts us-gaap:ConsolidatedEntities

srt:Subsidiaries


Payments
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value6.4742.7130.6472.7498.6835.3152.3013.7443.7445.696
Percentage of PaymentsForLeasingCosts100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:PaymentsForTenantImprovements

us-gaap:PaymentsForTenantImprovements


Payments
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
Value137.20217271413131721142213131615258.053111312111341162514452721364417222422152720
Percentage of PaymentsForTenantImprovements100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:PaymentsForTenantImprovements us-gaap:ConsolidatedEntities

srt:Subsidiaries


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
Value137.2021727141313172114221313161525
Percentage of PaymentsForTenantImprovements100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:PaymentsOfDividendsMinorityInterest

us-gaap:PaymentsOfDividendsMinorityInterest


Payments
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value196000.0187000.0186000.0187000.0187000.0187000.0187000.0187000.0186000.0187000.0266000.0266000.0267000.0266000.0236000.0237000.0237000.0237000.0237000.0236000.0231000.0230000.0229000.0231000.0231000.0230000.0258000.0265000.0264000.0277000.0265000.0264000.0277000.0277000.0277000.0399000.0398000.0399000.01066000.0405000.0419000.0419000.0421000.0421000.0421000.0421000.0
Percentage of PaymentsOfDividendsMinorityInterest100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:PaymentsToAcquireEquityMethodInvestments

us-gaap:PaymentsToAcquireEquityMethodInvestments


Payments
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-31
Value141.8840.00.520.1990.00.00.0710.00.1820.2620.3850.00.2611.3950.2610.0724.911.436110.886145.68113381129132.2870.8082.927175.5297.03915316.105123.0182.2590.00.0
Percentage of PaymentsToAcquireEquityMethodInvestments100.0100.00.0100.0100.00.00.0100.00.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.0

us-gaap:PaymentsToAcquireEquityMethodInvestments us-gaap:ConsolidatedEntities

srt:Subsidiaries


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
Value141.8840.00.520.1990.00.00.0710.00.1820.2620.3850.00.2611.3950.261
Percentage of PaymentsToAcquireEquityMethodInvestments100.0100.00.0100.0100.00.00.0100.00.0100.0100.0100.00.0100.0100.0100.0

us-gaap:PaymentsToDevelopRealEstateAssets

us-gaap:PaymentsToDevelopRealEstateAssets


Payments
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-31
Value126.681131714192215201828242619131615214341515457384537
Percentage of PaymentsToDevelopRealEstateAssets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:PaymentsToDevelopRealEstateAssets us-gaap:ConsolidatedEntities

srt:Subsidiaries


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
Value126.6811317141922152018282426191316
Percentage of PaymentsToDevelopRealEstateAssets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ProceedsFromEquityMethodInvestmentDividendsOrDistributionsReturnOfCapital

us-gaap:ProceedsFromEquityMethodInvestmentDividendsOrDistributionsReturnOfCapital


Proceeds
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-31
Value1.2173.9342.0853.3413.5750.00.71.389311.8511.4252.650.51.9515.8752.54.18.3060.52.2678.8621.4361.1561.6273.2112.5632.4262.0122.5012.828
Percentage of ProceedsFromEquityMethodInvestmentDividendsOrDistributionsReturnOfCapital100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ProceedsFromEquityMethodInvestmentDividendsOrDistributionsReturnOfCapital us-gaap:ConsolidatedEntities

srt:Subsidiaries


Proceeds
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value1.2173.9342.0853.3413.5750.00.71.389311.8511.4252.650.51.9515.8752.5
Percentage of ProceedsFromEquityMethodInvestmentDividendsOrDistributionsReturnOfCapital100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ProceedsFromIssuanceOfSecuredDebt us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName

us-gaap:ProceedsFromIssuanceOfSecuredDebt

bdn:MidAtlanticOfficeVenture


Proceeds
Period End2020-12-21
Value120
Percentage of ProceedsFromIssuanceOfSecuredDebt100.0

us-gaap:ProceedsFromLongTermLinesOfCredit

us-gaap:ProceedsFromLongTermLinesOfCredit


Proceeds
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value63331473866661572621984550.00.00.077452190.00.00.00.0195890.00.00.00.00.00.00.00.00.00.0186690.00.02129822678103221113109122
Percentage of ProceedsFromLongTermLinesOfCredit100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.00.0100.0100.0100.00.00.00.00.0100.0100.00.00.00.00.00.00.00.00.00.00.0100.0100.00.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ProceedsFromLongTermLinesOfCredit us-gaap:ConsolidatedEntities

srt:Subsidiaries


Proceeds
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value63331473866661572621984550.00.00.07745
Percentage of ProceedsFromLongTermLinesOfCredit100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.00.0100.0100.0

us-gaap:ProceedsFromSaleOfLandHeldforinvestment us-gaap:DisposalGroupClassification, us-gaap:LongLivedAssetsHeldForSaleByAssetType, us-gaap:StatementBusinessSegments, us-gaap:SubsequentEventType

us-gaap:ProceedsFromSaleOfLandHeldforinvestment

us-gaap:DisposalGroupHeldforsaleNotDiscontinuedOperations, bdn:OtherLand, us-gaap:AllOtherSegments, us-gaap:SubsequentEvent


Proceeds
Period End2021-07-06
Value8900000.0
Percentage of ProceedsFromSaleOfLandHeldforinvestment100.0

us-gaap:ProceedsFromSaleOfPropertyPlantAndEquipment

us-gaap:ProceedsFromSaleOfPropertyPlantAndEquipment


Proceeds
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value0.00.0791561003.539170.249360.255.2733070.01.851457122774251043704947153263741363.352770.0331120.04928921500.05.6390.0326.9070.010
Percentage of ProceedsFromSaleOfPropertyPlantAndEquipment0.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.00.0100.0100.0100.0100.00.0100.00.0100.0100.00.0100.0

us-gaap:ProceedsFromSaleOfPropertyPlantAndEquipment us-gaap:ConsolidatedEntities

srt:Subsidiaries


Proceeds
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value0.00.0791561003.539170.249360.255.2733070.01.85145712
Percentage of ProceedsFromSaleOfPropertyPlantAndEquipment0.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0

us-gaap:ProceedsFromSaleOfPropertyPlantAndEquipment us-gaap:MortgageLoansOnRealEstateDescriptionTypeOfProperty, us-gaap:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations

srt:OfficeBuilding, bdn:OneandTwoCommerceSquare


Proceeds
Period End2020-07-21
Value115
Percentage of ProceedsFromSaleOfPropertyPlantAndEquipment0.0

us-gaap:ProceedsFromStockOptionsExercised

us-gaap:ProceedsFromStockOptionsExercised


Proceeds
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-30
Value00047000.02971000.000800000.000000758000.0471000.000460000.00826000.0000127000.01434000.00709000.00141000.0478000.01090000.0672000.0228000.0472000.0276000.00-309000.0230000.0
Percentage of ProceedsFromStockOptionsExercised0.00.00.0100.0100.00.00.0100.00.00.00.00.00.0100.0100.00.00.0100.00.0100.00.00.00.0100.0100.00.0100.00.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0

us-gaap:ProceedsFromStockOptionsExercised us-gaap:ConsolidatedEntities

srt:Subsidiaries


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
Value00047000.02971000.000800000.000000758000.0
Percentage of ProceedsFromStockOptionsExercised0.00.00.0100.0100.00.00.0100.00.00.00.00.00.0100.0

us-gaap:ProvisionForDoubtfulAccounts

us-gaap:ProvisionForDoubtfulAccounts


Provision
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value-186000.0253000.08000.0696000.0132000.0213000.0-1956000.0635000.0-24000.00537000.0532000.0239000.0467000.0585000.0372000.0543000.0707000.01292000.0146000.0212000.0215000.01213000.0572000.0324000.0380000.076000.0415000.0375000.0897000.0690000.0780000.0492000.0505000.0835000.0401000.0181000.0781000.0734000.0501000.0322000.0367000.0203000.0559000.0408000.01309000.0
Percentage of ProvisionForDoubtfulAccounts100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ProvisionForDoubtfulAccounts us-gaap:ConsolidatedEntities

srt:Subsidiaries


Provision
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value-186000.0253000.08000.0696000.0132000.0213000.0-1956000.0635000.0-24000.00537000.0532000.0239000.0467000.0585000.0372000.0
Percentage of ProvisionForDoubtfulAccounts100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0

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
Value14141414161615151615141212121111111111111111121311121212121312141414131414141313141414141312
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 us-gaap:ConsolidatedEntities

srt:Subsidiaries


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
Value1414141416161515161514121212111111
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 End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value182014799551616289591303630.00.00.025567190.00.00.00.0195890.00.00.00.00.00.00.00.00.00.02550.00.00.0297189102233896025110954
Percentage of RepaymentsOfLongTermLinesOfCredit100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.00.0100.0100.0100.00.00.00.00.0100.0100.00.00.00.00.00.00.00.00.00.00.0100.00.00.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:RepaymentsOfLongTermLinesOfCredit us-gaap:ConsolidatedEntities

srt:Subsidiaries


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
Value182014799551616289591303630.00.00.025567
Percentage of RepaymentsOfLongTermLinesOfCredit100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.00.0100.0100.0

us-gaap:RepaymentsOfSecuredDebt

us-gaap:RepaymentsOfSecuredDebt


Repayments
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value882.1961.9641.9451.9261.9081.891.8711171.8361.8191.3171.251.2391.2271.215541.193872132123.5523.53.5463.4473.3473.2983.3492.9172.8142.7722.765593.1813.0872.9412.897961183.913452.0662.1642.303
Percentage of RepaymentsOfSecuredDebt100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:RepaymentsOfSecuredDebt us-gaap:ConsolidatedEntities

srt:Subsidiaries


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
Value882.1961.9641.9451.9261.9081.891.8711171.8361.8191.3171.251.239
Percentage of RepaymentsOfSecuredDebt100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresWeightedAverageGrantDateFairValue us-gaap:AwardType

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresWeightedAverageGrantDateFairValue

us-gaap:RestrictedStock


Share
Period End2021-03-31
Value14.99
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresWeightedAverageGrantDateFairValue100.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue us-gaap:AwardType

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue

us-gaap:RestrictedStock


Share
Period End2021-03-31
Value12.58
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue100.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodTotalFairValue us-gaap:TitleOfIndividual, us-gaap:AwardDate, us-gaap:AwardType

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodTotalFairValue

srt:ExecutiveOfficer, bdn:March52021Grant, bdn:RestrictedPerformanceShareUnitsPlan


Share
Period End2021-03-05
Value6389000.0
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodTotalFairValue100.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue us-gaap:AwardType

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue

us-gaap:RestrictedStock


Share
Period End2021-03-31
Value14.96
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue100.0

us-gaap:StockIssuedDuringPeriodValueShareBasedCompensation

us-gaap:StockIssuedDuringPeriodValueShareBasedCompensation


Stock
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value0.692.5021.2631.6682.0311.1051.4513.6770.8710.7581.1393.0760.791.5630.5743.770.831.3190.2833.3321.0541.0880.6032.3522.2330.9850.9782.6510.00.00.00.3610.00.00.00.3870.00.00.00.0060.00.00.00.369
Percentage of StockIssuedDuringPeriodValueShareBasedCompensation100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.00.0100.00.00.00.0100.00.00.00.0100.00.00.00.0100.0

us-gaap:StockIssuedDuringPeriodValueShareBasedCompensation us-gaap:ConsolidatedEntities

srt:Subsidiaries


Stock
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value0.692.5021.2631.6682.0311.1051.4513.6770.8710.7581.143.0750.791.563
Percentage of StockIssuedDuringPeriodValueShareBasedCompensation100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.1100.0100.0100.0

us-gaap:StockIssuedDuringPeriodValueShareBasedCompensation us-gaap:ConsolidatedEntities, us-gaap:PartnerTypeOfPartnersCapitalAccount

srt:Subsidiaries, us-gaap:GeneralPartner


Stock
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value0.692.5021.2631.6682.0311.1051.4513.6770.8710.7581.143.0750.791.563
Percentage of StockIssuedDuringPeriodValueShareBasedCompensation100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.1100.0100.0100.0

us-gaap:StockIssuedDuringPeriodValueShareBasedCompensation us-gaap:StatementEquityComponents

us-gaap:AdditionalPaidInCapital


Stock
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
Value0.6882.5021.2631.6662.031.1051.4493.6730.8690.751.1353.0720.7891.5620.5693.7690.8281.3150.2793.2961.0551.0870.6022.3472.260.9850.9692.6430.00.00.00.3610.00.00.00.387
Percentage of StockIssuedDuringPeriodValueShareBasedCompensation99.7100.0100.099.9100.0100.099.999.999.898.999.699.999.999.999.1100.099.899.798.698.9100.199.999.899.8101.2100.099.199.70.00.00.0100.00.00.00.0100.0

us-gaap:CommonStock


Stock
Period End2021-06-302020-06-302020-03-312019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-31
Value0.0020.0020.0010.0020.0040.00.00.0010.0010.00.0010.00.0010.0010.0020.00.00.0010.0050.0010.00.0040.0010.0010.00.0020.001
Percentage of StockIssuedDuringPeriodValueShareBasedCompensation0.30.10.00.10.10.00.00.10.00.00.10.00.10.40.10.00.00.20.20.00.00.40.00.00.00.00.3

us-gaap:StockRepurchasedAndRetiredDuringPeriodValue

us-gaap:StockRepurchasedAndRetiredDuringPeriodValue


Stock
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312015-12-31
Value-0.0010.06.14153-0.0190.00.0176.508
Percentage of StockRepurchasedAndRetiredDuringPeriodValue100.00.0100.0100.0100.00.00.0100.0100.0

us-gaap:TangibleAssetImpairmentCharges us-gaap:UnusualOrInfrequentItem

us-gaap:TangibleAssetImpairmentCharges

us-gaap:NaturalDisastersAndOtherCasualtyEvents


Tangible
Period End2021-06-302021-03-31
Value01200000.0
Percentage of TangibleAssetImpairmentCharges0.0100.0

us-gaap:TreasuryStockAcquiredAverageCostPerShare

us-gaap:TreasuryStockAcquiredAverageCostPerShare


Treasury
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value000.069.5400012.92
Percentage of TreasuryStockAcquiredAverageCostPerShare0.00.0100.0100.00.00.00.0100.0

us-gaap:UndistributedEarningsLossAllocatedToParticipatingSecuritiesBasic

us-gaap:UndistributedEarningsLossAllocatedToParticipatingSecuritiesBasic


Undistributed
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-30
Value94000.0146000.093000.093000.093000.0131000.091000.093000.093000.0119000.089000.080000.086000.0114000.082000.073000.073000.099000.078000.079000.079000.0105000.076000.076000.076000.0101000.081000.082000.083000.0103000.085000.085000.0
Percentage of UndistributedEarningsLossAllocatedToParticipatingSecuritiesBasic100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:UndistributedEarningsLossAllocatedToParticipatingSecuritiesBasic us-gaap:ConsolidatedEntities

srt:Subsidiaries


Undistributed
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value94000.0146000.093000.093000.093000.0131000.091000.093000.093000.0119000.089000.080000.086000.0114000.082000.073000.073000.0
Percentage of UndistributedEarningsLossAllocatedToParticipatingSecuritiesBasic100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:UndistributedEarningsLossAllocatedToParticipatingSecuritiesDiluted

us-gaap:UndistributedEarningsLossAllocatedToParticipatingSecuritiesDiluted


Undistributed
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-30
Value94000.0146000.093000.093000.093000.0131000.091000.093000.093000.0119000.089000.080000.086000.0114000.082000.073000.073000.099000.078000.079000.079000.0105000.076000.076000.076000.0101000.081000.082000.083000.0103000.085000.085000.0
Percentage of UndistributedEarningsLossAllocatedToParticipatingSecuritiesDiluted100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:UndistributedEarningsLossAllocatedToParticipatingSecuritiesDiluted us-gaap:ConsolidatedEntities

srt:Subsidiaries


Undistributed
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value94000.0146000.093000.093000.093000.0131000.091000.093000.093000.0119000.089000.080000.086000.0114000.082000.073000.073000.0
Percentage of UndistributedEarningsLossAllocatedToParticipatingSecuritiesDiluted100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:UnusualOrInfrequentItemInsuranceProceeds us-gaap:UnusualOrInfrequentItem

us-gaap:UnusualOrInfrequentItemInsuranceProceeds

us-gaap:NaturalDisastersAndOtherCasualtyEvents


Unusual
Period End2021-06-302021-03-31
Value9.04.0
Percentage of UnusualOrInfrequentItemInsuranceProceeds100.0100.0

bdn:AccruedRentReceivableAllowanceForCreditLoss us-gaap:ConsolidatedEntities

bdn:AccruedRentReceivableAllowanceForCreditLoss

srt:Subsidiaries


Accrued
Period End2020-12-312019-12-31
Value5086000.07691000.0
Percentage of AccruedRentReceivableAllowanceForCreditLoss100.0100.0

bdn:AllowanceForDoubtfulAccruedRentReceivable

bdn:AllowanceForDoubtfulAccruedRentReceivable


Allowance
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-31
Value5.0335.085.0866.1116.8447.4847.69111111111131313131313131313131314
Percentage of AllowanceForDoubtfulAccruedRentReceivable100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

bdn:AllowanceForDoubtfulAccruedRentReceivable us-gaap:ConsolidatedEntities

srt:Subsidiaries


Allowance
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-31
Value5.0335.085.0866.1116.8447.4847.69111111111131313
Percentage of AllowanceForDoubtfulAccruedRentReceivable100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

bdn:AreaHeldByCompanyOfUndevelopedParcelsOfLand us-gaap:ConsolidatedEntities, us-gaap:PropertyPlantAndEquipmentByType

bdn:AreaHeldByCompanyOfUndevelopedParcelsOfLand

srt:ParentCompany, bdn:LeasholdInterestLand


Area
Period End2020-12-31
Value1.8
Percentage of AreaHeldByCompanyOfUndevelopedParcelsOfLand100.0

bdn:AreaOfBuildingToBeConstructed us-gaap:RealEstateAndAccumulatedDepreciationDescriptionOfProperty

bdn:AreaOfBuildingToBeConstructed

bdn:A3025JFKBoulevard


Area
Period End2021-02-02
Value570000.0
Percentage of AreaOfBuildingToBeConstructed100.0

bdn:AreaOfBuildingToBeConstructed us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName, us-gaap:SubsequentEventType

bdn:SchuylkillYardsWest, us-gaap:SubsequentEvent


Area
Period End2021-02-02
Value570000.0
Percentage of AreaOfBuildingToBeConstructed100.0

bdn:AreaOfLandHeldForDevelopment us-gaap:ConsolidatedEntities

bdn:AreaOfLandHeldForDevelopment

srt:ParentCompany


Area
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-30
Value216.3228.5228.5228.5242.5234.7234.7
Percentage of AreaOfLandHeldForDevelopment100.0100.0100.0100.0100.0100.0100.0

bdn:AreaOfLandHeldForDevelopment us-gaap:ConsolidatedEntities, us-gaap:PropertyPlantAndEquipmentByType

srt:ParentCompany, bdn:LeasholdInterestLand


Area
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-30
Value0.80.81.81.81.81.81.8
Percentage of AreaOfLandHeldForDevelopment0.40.40.80.80.70.80.8

bdn:AreaOwnedByCompanyOfUndevelopedParcelsOfLand us-gaap:ConsolidatedEntities

bdn:AreaOwnedByCompanyOfUndevelopedParcelsOfLand

srt:ParentCompany


Area
Period End2020-12-31
Value228.5
Percentage of AreaOwnedByCompanyOfUndevelopedParcelsOfLand100.0

bdn:AssetAcquisitionTransactionCosts us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName

bdn:AssetAcquisitionTransactionCosts

bdn:A150511RaceStreet


Asset
Period End2020-11-05
Value300000.0
Percentage of AssetAcquisitionTransactionCosts100.0

bdn:BelowMarketLeaseAmortizationIncomeAfterYearFour

bdn:BelowMarketLeaseAmortizationIncomeAfterYearFour


Below
Period End2021-06-302021-03-312020-09-30
Value6599000.06600000.07747000.0
Percentage of BelowMarketLeaseAmortizationIncomeAfterYearFour100.0100.0100.0

bdn:CapitalCommitmentTargetsConstructionLoanAmount us-gaap:RealEstateAndAccumulatedDepreciationDescriptionOfProperty

bdn:CapitalCommitmentTargetsConstructionLoanAmount

bdn:A3025JFKBoulevard


Capital
Period End2021-03-31
Value187
Percentage of CapitalCommitmentTargetsConstructionLoanAmount100.0

bdn:CapitalCommitmentTargetsConstructionLoanAmount us-gaap:RealEstateAndAccumulatedDepreciationDescriptionOfProperty, us-gaap:SubsequentEventType

bdn:A3025JFKBoulevard, us-gaap:SubsequentEvent


Capital
Period End2021-07-23
Value186
Percentage of CapitalCommitmentTargetsConstructionLoanAmount0.0

bdn:DeferredCompensationPayableInCommonStock

bdn:DeferredCompensationPayableInCommonStock


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
Value18171717171716161614141414131214141413131313111111116.2196.219-6.303-6.267-5.407-5.431-5.516-5.516-5.352-5.352-5.436-5.436-5.631-5.631-5.737-5.633-5.774-5.549
Percentage of DeferredCompensationPayableInCommonStock100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

bdn:DeferredCostsAccumulatedAmortization

bdn:DeferredCostsAccumulatedAmortization


Deferred
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-31
Value6067606158677979787673727068686662606462-59.841-54.864
Percentage of DeferredCostsAccumulatedAmortization100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

bdn:DeferredCostsGross

bdn:DeferredCostsGross


Deferred
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-31
Value145162151158149169204202202199196199190187190186177178179176173160
Percentage of DeferredCostsGross100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

bdn:DisposalGroupIncludingDiscontinuedOperationValueOfAssetsDisposedOf us-gaap:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations

bdn:DisposalGroupIncludingDiscontinuedOperationValueOfAssetsDisposedOf

bdn:OneandTwoCommerceSquare


Disposal
Period End2020-07-21
Value600
Percentage of DisposalGroupIncludingDiscontinuedOperationValueOfAssetsDisposedOf100.0

bdn:DisposalGroupNotDiscontinuedOperationContingentConsiderationAsset us-gaap:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations

bdn:DisposalGroupNotDiscontinuedOperationContingentConsiderationAsset

bdn:MidAtlanticOfficePortfolio


Disposal
Period End2020-12-21
Value4100000.0
Percentage of DisposalGroupNotDiscontinuedOperationContingentConsiderationAsset100.0

bdn:EquityMethodInvestmentAdditionalDistributionRights bdn:JointVentureMembers

bdn:EquityMethodInvestmentAdditionalDistributionRights

bdn:BrandywineRealtyTrust


Equity
Period End2020-12-31
Value10.0
Percentage of EquityMethodInvestmentAdditionalDistributionRights100.0

bdn:EquityMethodInvestmentOwnershipPercentageOfCommonEquity us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName

bdn:EquityMethodInvestmentOwnershipPercentageOfCommonEquity

bdn:MidAtlanticOfficeVenture


Equity
Period End2020-12-21
Value20.0
Percentage of EquityMethodInvestmentOwnershipPercentageOfCommonEquity100.0

bdn:EquityMethodInvestmentSummarizedFinancialInformationDebt

bdn:EquityMethodInvestmentSummarizedFinancialInformationDebt


Equity
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312013-12-312012-12-312011-12-31
Value963596370768997794699724745
Percentage of EquityMethodInvestmentSummarizedFinancialInformationDebt100.0100.0100.0100.0100.0100.0100.0100.0100.0

bdn:EquityMethodInvestmentSummarizedFinancialInformationDebt us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName

bdn:A4040WilsonVenture


Equity
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312013-12-31
Value141114576.6641.0040.00.0
Percentage of EquityMethodInvestmentSummarizedFinancialInformationDebt14.719.315.50.90.10.00.0

bdn:BrandywineNineteenNineteenVentures


Equity
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312013-12-312012-12-312011-12-31
Value8888888879190.00.00.0
Percentage of EquityMethodInvestmentSummarizedFinancialInformationDebt9.214.924.011.67.92.40.00.00.0

bdn:CommerceSquareVenture


Equity
Period End2020-12-31
Value219
Percentage of EquityMethodInvestmentSummarizedFinancialInformationDebt22.8

bdn:HerndonInnovationCenterMetroPortfolioVentureLLC


Equity
Period End2020-12-312019-12-312018-12-31
Value2072070.0
Percentage of EquityMethodInvestmentSummarizedFinancialInformationDebt21.534.80.0

bdn:MAPVenture


Equity
Period End2020-12-312019-12-312018-12-312018-08-012017-12-312016-12-312015-12-31
Value1851851851801801800.0
Percentage of EquityMethodInvestmentSummarizedFinancialInformationDebt19.231.050.00.023.518.10.0

bdn:MidAtlanticOfficeVenture


Equity
Period End2020-12-31
Value120
Percentage of EquityMethodInvestmentSummarizedFinancialInformationDebt12.5

bdn:UnconsolidatedRealEstateVentures


Equity
Period End2021-06-302021-03-312020-12-312020-09-302019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302017-12-312017-09-302016-12-31
Value960961963842596592605498370664768915997
Percentage of EquityMethodInvestmentSummarizedFinancialInformationDebt0.00.0100.00.0100.00.00.00.0100.00.0100.00.0100.0

bdn:EquityMethodInvestmentsInAssetPosition

bdn:EquityMethodInvestmentsInAssetPosition


Equity
Period End2020-12-312019-12-31
Value401120
Percentage of EquityMethodInvestmentsInAssetPosition100.0100.0

bdn:EquityMethodInvestmentsInAssetPosition us-gaap:ConsolidatedEntities

srt:Subsidiaries


Equity
Period End2020-12-312019-12-31
Value401120
Percentage of EquityMethodInvestmentsInAssetPosition100.0100.0

bdn:EstimatedPotentialAdditionalContributionObligation us-gaap:BusinessAcquisition

bdn:EstimatedPotentialAdditionalContributionObligation

bdn:DrexelSquare


Estimated
Period End2021-06-302021-03-312020-12-312020-09-30
Value2500000.02500000.02600000.02600000.0
Percentage of EstimatedPotentialAdditionalContributionObligation100.0100.0100.0100.0

bdn:EstimatedProjectCost us-gaap:RealEstateAndAccumulatedDepreciationDescriptionOfProperty

bdn:EstimatedProjectCost

bdn:A3025JFKBoulevard


Estimated
Period End2021-02-02
Value287
Percentage of EstimatedProjectCost100.0

bdn:EstimatedProjectCost us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName, us-gaap:SubsequentEventType

bdn:SchuylkillYardsWest, us-gaap:SubsequentEvent


Estimated
Period End2021-02-02
Value287
Percentage of EstimatedProjectCost100.0

bdn:FiniteLivedIntangibleAssetExpectedAmortizationafterYearFour

bdn:FiniteLivedIntangibleAssetExpectedAmortizationafterYearFour


Finite
Period End2021-06-302021-03-312020-09-30
Value5220000.05220000.09248000.0
Percentage of FiniteLivedIntangibleAssetExpectedAmortizationafterYearFour100.0100.0100.0

bdn:GroundLeaseAnnualRentExpenseIncreasePercentageThereafter us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName

bdn:GroundLeaseAnnualRentExpenseIncreasePercentageThereafter

bdn:MAPVenture


Ground
Period End2020-12-31
Value2.5
Percentage of GroundLeaseAnnualRentExpenseIncreasePercentageThereafter100.0

bdn:JointVentureAdditionalFundingCommitted us-gaap:RealEstateAndAccumulatedDepreciationDescriptionOfProperty

bdn:JointVentureAdditionalFundingCommitted

bdn:A3025JFKBoulevard


Joint
Period End2021-03-312021-02-02
Value2020
Percentage of JointVentureAdditionalFundingCommitted100.0100.0

bdn:JointVentureAdditionalFundingCommittedByOtherParty us-gaap:RealEstateAndAccumulatedDepreciationDescriptionOfProperty

bdn:JointVentureAdditionalFundingCommittedByOtherParty

bdn:A3025JFKBoulevard


Joint
Period End2021-02-02
Value45
Percentage of JointVentureAdditionalFundingCommittedByOtherParty100.0

bdn:JointVentureAmountFunded us-gaap:RealEstateAndAccumulatedDepreciationDescriptionOfProperty

bdn:JointVentureAmountFunded

bdn:A3025JFKBoulevard


Joint
Period End2021-06-30
Value11
Percentage of JointVentureAmountFunded100.0

bdn:JointVentureFundingCommittedByOtherParty us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName, us-gaap:SubsequentEventType

bdn:JointVentureFundingCommittedByOtherParty

bdn:SchuylkillYardsWest, us-gaap:SubsequentEvent


Joint
Period End2021-02-02
Value58
Percentage of JointVentureFundingCommittedByOtherParty100.0

bdn:LandHeldUnderAvailableForSale us-gaap:ConsolidatedEntities

bdn:LandHeldUnderAvailableForSale

srt:ParentCompany


Land
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value35.235.235.235.235.249.235.235.235.235.237.937.9
Percentage of LandHeldUnderAvailableForSale100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

bdn:LimitedPaymentGuaranteePercentOfPrincipleBalance us-gaap:SubsequentEventType

bdn:LimitedPaymentGuaranteePercentOfPrincipleBalance

us-gaap:SubsequentEvent


Limited
Period End2021-07-23
Value25.0
Percentage of LimitedPaymentGuaranteePercentOfPrincipleBalance100.0

bdn:LongTermDebtMaturitiesRepaymentsOfPrincipal

bdn:LongTermDebtMaturitiesRepaymentsOfPrincipal


Long
Period End2021-06-302021-03-312020-09-302012-12-31
Value1886184119172471
Percentage of LongTermDebtMaturitiesRepaymentsOfPrincipal100.0100.0100.0100.0

bdn:MinorityInterestInOperatingPartnershipsSettlementValue

bdn:MinorityInterestInOperatingPartnershipsSettlementValue


Minority
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-31
Value1112111010101514141512232523262525242423242121
Percentage of MinorityInterestInOperatingPartnershipsSettlementValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

bdn:NumberOfSharesToBeIssuedUnderDeferredCompensationPlanIncludedInSharesOutstanding

bdn:NumberOfSharesToBeIssuedUnderDeferredCompensationPlanIncludedInSharesOutstanding


Number
Period End2020-12-312019-12-312018-12-312017-12-312017-12-182016-12-312015-12-312014-12-31
Value1200000.01100000.01000000.0900000.0900000.0800000.0700000.0400000.0
Percentage of NumberOfSharesToBeIssuedUnderDeferredCompensationPlanIncludedInSharesOutstanding100.0100.0100.0100.0100.0100.0100.0100.0

bdn:OperatingRealEstateInvestmentPropertyNet

bdn:OperatingRealEstateInvestmentPropertyNet


Operating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312014-12-31
Value248525072598275627143032305430723111314630872583293329442937288328872838273328162844281128253535
Percentage of OperatingRealEstateInvestmentPropertyNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

bdn:OperatingRealEstateInvestmentPropertyNet us-gaap:ConsolidatedEntities

srt:Subsidiaries


Operating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-31
Value24852507259827562714303230543072311131463087258329332937
Percentage of OperatingRealEstateInvestmentPropertyNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

bdn:PotentialDevelopmentCapacity us-gaap:ConsolidatedEntities

bdn:PotentialDevelopmentCapacity

srt:ParentCompany


Potential
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value13131414141414141414141414
Percentage of PotentialDevelopmentCapacity100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

bdn:PotentialDevelopmentCapacity us-gaap:ConsolidatedEntities, us-gaap:DisposalGroupClassification

srt:ParentCompany, us-gaap:DisposalGroupHeldforsaleNotDiscontinuedOperations


Potential
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value0.20.20.20.20.20.30.20.20.20.20.40.40.1
Percentage of PotentialDevelopmentCapacity1.51.41.41.41.42.11.41.41.41.42.82.80.7

bdn:RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionNetImprovementsRetirements

bdn:RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionNetImprovementsRetirements


Real
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-31
Value613676635566539651
Percentage of RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionNetImprovementsRetirements100.0100.0100.0100.0100.0100.0

bdn:RealEstateInvestmentOwnershipInterestHeldByPartner us-gaap:RealEstateAndAccumulatedDepreciationDescriptionOfProperty

bdn:RealEstateInvestmentOwnershipInterestHeldByPartner

bdn:A3025JFKBoulevard


Real
Period End2021-02-02
Value45.0
Percentage of RealEstateInvestmentOwnershipInterestHeldByPartner100.0

bdn:RealEstateInvestmentOwnershipInterestHeldByPartner us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName, us-gaap:SubsequentEventType

bdn:SchuylkillYardsWest, us-gaap:SubsequentEvent


Real
Period End2021-02-02
Value45.0
Percentage of RealEstateInvestmentOwnershipInterestHeldByPartner100.0

bdn:RealEstateInvestmentPropertyHeldForUseandSale

bdn:RealEstateInvestmentPropertyHeldForUseandSale


Real
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302019-12-31
Value339233863474371539774006
Percentage of RealEstateInvestmentPropertyHeldForUseandSale100.0100.0100.0100.0100.0100.0

bdn:SaleOfOwnershipInterestPercentage

bdn:SaleOfOwnershipInterestPercentage


Sale
Period End2020-12-21
Value60.0
Percentage of SaleOfOwnershipInterestPercentage100.0

bdn:SaleOfOwnershipInterestPercentage us-gaap:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations

bdn:OneandTwoCommerceSquare


Sale
Period End2020-07-21
Value30.0
Percentage of SaleOfOwnershipInterestPercentage0.0

bdn:SettlementLiabilities us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName

bdn:SettlementLiabilities

bdn:TwoLoganSquare


Settlement
Period End2020-12-31
Value900000.0
Percentage of SettlementLiabilities100.0

bdn:ShareBasedPaymentArrangementExpenseRecognizedToDate us-gaap:TitleOfIndividual, us-gaap:AwardDate, us-gaap:AwardType

bdn:ShareBasedPaymentArrangementExpenseRecognizedToDate

srt:ExecutiveOfficer, bdn:A2019Awards, bdn:RestrictedPerformanceShareUnitsPlan


Share
Period End2021-03-31
Value200000.0
Percentage of ShareBasedPaymentArrangementExpenseRecognizedToDate100.0

bdn:Taxguaranteeobligation us-gaap:BusinessAcquisition

bdn:Taxguaranteeobligation

bdn:OneCommerceSquare


Taxguaranteeobligationus-gaap:
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-31
Value125125125125125125125130
Percentage of Taxguaranteeobligation100.0100.0100.0100.0100.0100.0100.0100.0

bdn:TwoCommerceSquare


Taxguaranteeobligationus-gaap:
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-31
Value100100100100100100100107
Percentage of Taxguaranteeobligation80.080.080.080.080.080.080.083.0

bdn:UnusualOrInfrequentItemOrBothRestorationLiability us-gaap:BalanceSheetLocation, us-gaap:UnusualOrInfrequentItem

bdn:UnusualOrInfrequentItemOrBothRestorationLiability

us-gaap:AccountsPayableAndAccruedLiabilities, us-gaap:NaturalDisastersAndOtherCasualtyEvents


Unusual
Period End2021-06-30
Value2600000.0
Percentage of UnusualOrInfrequentItemOrBothRestorationLiability100.0

bdn:UnusualOrInfrequentItemOrBothRestorationLiability us-gaap:UnusualOrInfrequentItem

us-gaap:NaturalDisastersAndOtherCasualtyEvents


Unusual
Period End2021-06-302021-03-31
Value7200000.06400000.0
Percentage of UnusualOrInfrequentItemOrBothRestorationLiability276.90.0

srt:RealEstateFederalIncomeTaxBasis

srt:RealEstateFederalIncomeTaxBasis


Real
Period End2020-12-312019-12-312018-12-312017-12-31
Value2900320033003100
Percentage of RealEstateFederalIncomeTaxBasis100.0100.0100.0100.0

srt:RealEstateFederalIncomeTaxBasis us-gaap:ConsolidatedEntities

srt:Subsidiaries


Real
Period End2020-12-312019-12-312018-12-312017-12-31
Value2900320033003100
Percentage of RealEstateFederalIncomeTaxBasis100.0100.0100.0100.0

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
Value10911912111711310911311998112125116106105107112991151031069111299115981099697831068389708171805772698563817288
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 us-gaap:ConsolidatedEntities

srt:Subsidiaries


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
Value10911912111711310911311998112125116106107
Percentage of AccountsPayableAndAccruedLiabilitiesCurrentAndNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

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
Value101413201816161318211613191717141312129.925141417192218181921231713111513131114141514181610
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 us-gaap:ConsolidatedEntities

srt:Subsidiaries


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
Value1014132018161613182116131917
Percentage of AccountsReceivableNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AccountsReceivableNet us-gaap:InvestmentSecondaryCategorization

bdn:RealEstateVenture


Accounts
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302018-12-31
Value1.92.11.21.40.80.90.80.80.40.8
Percentage of AccountsReceivableNet17.814.38.96.94.35.34.95.82.24.9

us-gaap:AccumulatedAmortizationDeferredFinanceCosts us-gaap:DebtInstrument

us-gaap:AccumulatedAmortizationDeferredFinanceCosts

us-gaap:RevolvingCreditFacility


Accumulated
Period End2020-12-312019-12-312018-12-31
Value4.9944.1013.208
Percentage of AccumulatedAmortizationDeferredFinanceCosts100.0100.0100.0

us-gaap:AllowanceForDoubtfulAccountsReceivable

us-gaap:AllowanceForDoubtfulAccountsReceivable


Allowance
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312013-12-312012-12-312011-12-312010-12-31
Value0.00.00.2840.2840.2840.2840.2841.6533.7823.853.9353.4673.2942.9362.6222.3732.3042.2211.951.73613131211
Percentage of AllowanceForDoubtfulAccountsReceivable0.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AllowanceForDoubtfulAccountsReceivable us-gaap:ConsolidatedEntities

srt:Subsidiaries


Allowance
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-31
Value0.00.00.00.2840.2840.2840.2840.2841.6533.7823.853.467
Percentage of AllowanceForDoubtfulAccountsReceivable0.00.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AreaOfLand us-gaap:DisposalGroupClassification

us-gaap:AreaOfLand

us-gaap:DisposalGroupHeldforsaleNotDiscontinuedOperations


Area
Period End2020-09-302019-12-312017-12-31
Value35.235.213.1
Percentage of AreaOfLand100.0100.0100.0

us-gaap:AreaOfLand us-gaap:DisposalGroupClassification, us-gaap:InvestmentType, us-gaap:StatementBusinessSegments

us-gaap:DisposalGroupHeldforsaleNotDiscontinuedOperations, bdn:LandHeldForDevelopment, us-gaap:AllOtherSegments


Area
Period End2020-12-31
Value35.2
Percentage of AreaOfLand0.0

us-gaap:AreaOfLand us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName, us-gaap:PropertyPlantAndEquipmentByType

bdn:UnconsolidatedRealEstateVentures, bdn:LandUnderActiveDevelopment


Area
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-31
Value1.01.01.31.31.31.3
Percentage of AreaOfLand0.00.00.03.70.00.0

us-gaap:AreaOfRealEstateProperty

us-gaap:AreaOfRealEstateProperty


Area
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value1313131416161616161616161616
Percentage of AreaOfRealEstateProperty100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AreaOfRealEstateProperty us-gaap:ConsolidatedEntities

bdn:ManagementCompanySubsidiaries


Area
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value2424242424242424242424252525252626
Percentage of AreaOfRealEstateProperty178.8178.8178.3166.0145.2145.2145.4147.3147.3147.3147.6153.3153.7153.30.00.00.0

us-gaap:AreaOfRealEstateProperty us-gaap:ConsolidatedEntities, us-gaap:RealEstateProperties

bdn:ManagementCompanySubsidiaries, us-gaap:PartiallyOwnedProperties


Area
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value1010109.77.57.57.67.98.08.08.08.88.88.88.810.010
Percentage of AreaOfRealEstateProperty78.878.878.066.045.245.245.547.347.347.347.653.353.553.30.00.00.0

bdn:ManagementCompanySubsidiaries, us-gaap:WhollyOwnedProperties


Area
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value1313131416161616161616161616161616
Percentage of AreaOfRealEstateProperty100.0100.0100.3100.0100.0100.099.9100.0100.0100.0100.0100.0100.2100.00.00.00.0

us-gaap:AreaOfRealEstateProperty us-gaap:PropertyPlantAndEquipmentByType

bdn:CoreProperties


Area
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value12121314141516161616141515
Percentage of AreaOfRealEstateProperty94.594.596.898.186.596.396.496.996.996.986.994.995.0

bdn:DevelopmentProjects


Area
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value0.2058030.2040.2058030.2058030.2041080.2041080.2041080.2041080.2041080.1648180.2478180.2478180.247818
Percentage of AreaOfRealEstateProperty1.51.51.51.41.21.21.21.21.21.01.51.51.5

bdn:MixedUseProperties


Area
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value0.9423340.9423340.9423340.7801840.7801840.6596250.6596250.6417410.6417410.6467410.6467410.6467410.646741
Percentage of AreaOfRealEstateProperty6.96.96.85.34.74.03.93.83.83.83.93.93.9

bdn:OfficeProperties


Area
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-31
Value121212131315
Percentage of AreaOfRealEstateProperty87.687.690.092.881.892.3

bdn:RedevelopmentProjects


Area
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value0.4983180.4983180.234070.064070.1200110.3972370.3972370.338650.338650.338650.5837190.5837190.583719
Percentage of AreaOfRealEstateProperty3.63.61.70.40.72.42.42.02.02.03.53.53.5

us-gaap:AreaOfRealEstateProperty us-gaap:RealEstateProperties

us-gaap:WhollyOwnedProperties


Area
Period End2020-12-312019-12-31
Value1316
Percentage of AreaOfRealEstateProperty100.399.9

us-gaap:AssetsOfDisposalGroupIncludingDiscontinuedOperation

us-gaap:AssetsOfDisposalGroupIncludingDiscontinuedOperation


Assets
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302013-12-31
Value7.3497.3497.3497.349300107.3497.3497.3497.345112974.2540.00.392315.5696.2624112120.0584530.011118370.0
Percentage of AssetsOfDisposalGroupIncludingDiscontinuedOperation100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.00.0100.0100.0100.00.0

us-gaap:AssetsOfDisposalGroupIncludingDiscontinuedOperation us-gaap:ConsolidatedEntities

srt:Subsidiaries


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
Value7.3497.3497.3497.349300107.3497.3497.3497.345112974.2540.392
Percentage of AssetsOfDisposalGroupIncludingDiscontinuedOperation100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AssetsOfDisposalGroupIncludingDiscontinuedOperation us-gaap:DisposalGroupClassification, us-gaap:InvestmentType, us-gaap:StatementBusinessSegments

us-gaap:DisposalGroupHeldforsaleNotDiscontinuedOperations, bdn:LandHeldForDevelopment, us-gaap:AllOtherSegments


Assets
Period End2020-12-31
Value7.3
Percentage of AssetsOfDisposalGroupIncludingDiscontinuedOperation99.3

us-gaap:BelowMarketLeaseAccumulatedAmortization

us-gaap:BelowMarketLeaseAccumulatedAmortization


Below
Period End2021-06-302021-03-312020-12-312020-06-302019-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-31
Value14131210221824222324292727
Percentage of BelowMarketLeaseAccumulatedAmortization100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:BelowMarketLeaseAccumulatedAmortization us-gaap:FiniteLivedIntangibleAssetsByMajorClass

bdn:BelowMarketLeasesAcquiredIncludingLiabilitiesOfAssetsHeldForSale


Below
Period End2020-09-302020-06-302019-09-302018-12-31
Value11152017
Percentage of BelowMarketLeaseAccumulatedAmortization0.0142.10.00.0

us-gaap:BelowMarketLeaseAmortizationIncomeAfterYearFive

us-gaap:BelowMarketLeaseAmortizationIncomeAfterYearFive


Below
Period End2020-12-31
Value6599000.0
Percentage of BelowMarketLeaseAmortizationIncomeAfterYearFive100.0

us-gaap:BelowMarketLeaseAmortizationIncomeNextTwelveMonths

us-gaap:BelowMarketLeaseAmortizationIncomeNextTwelveMonths


Below
Period End2021-06-302021-03-312020-12-312020-09-30
Value2682000.02682000.04902000.03601000.0
Percentage of BelowMarketLeaseAmortizationIncomeNextTwelveMonths100.0100.0100.0100.0

us-gaap:BelowMarketLeaseAmortizationIncomeRemainderOfFiscalYear

us-gaap:BelowMarketLeaseAmortizationIncomeRemainderOfFiscalYear


Below
Period End2021-06-302021-03-312020-09-30
Value2333000.03576000.01011000.0
Percentage of BelowMarketLeaseAmortizationIncomeRemainderOfFiscalYear100.0100.0100.0

us-gaap:BelowMarketLeaseAmortizationIncomeYearFive

us-gaap:BelowMarketLeaseAmortizationIncomeYearFive


Below
Period End2020-12-31
Value1148000.0
Percentage of BelowMarketLeaseAmortizationIncomeYearFive100.0

us-gaap:BelowMarketLeaseAmortizationIncomeYearFour

us-gaap:BelowMarketLeaseAmortizationIncomeYearFour


Below
Period End2021-06-302021-03-312020-12-312020-09-30
Value1148000.01148000.01425000.01425000.0
Percentage of BelowMarketLeaseAmortizationIncomeYearFour100.0100.0100.0100.0

us-gaap:BelowMarketLeaseAmortizationIncomeYearThree

us-gaap:BelowMarketLeaseAmortizationIncomeYearThree


Below
Period End2021-06-302021-03-312020-12-312020-09-30
Value1425000.01425000.01651000.01651000.0
Percentage of BelowMarketLeaseAmortizationIncomeYearThree100.0100.0100.0100.0

us-gaap:BelowMarketLeaseAmortizationIncomeYearTwo

us-gaap:BelowMarketLeaseAmortizationIncomeYearTwo


Below
Period End2021-06-302021-03-312020-12-312020-09-30
Value1642000.01642000.02723000.02065000.0
Percentage of BelowMarketLeaseAmortizationIncomeYearTwo100.0100.0100.0100.0

us-gaap:BelowMarketLeaseGross

us-gaap:BelowMarketLeaseGross


Below
Period End2021-06-302021-03-312020-12-312020-06-302019-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-31
Value29303129443745454853605253
Percentage of BelowMarketLeaseGross100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:BelowMarketLeaseGross us-gaap:FiniteLivedIntangibleAssetsByMajorClass

bdn:BelowMarketLeasesAcquiredIncludingLiabilitiesOfAssetsHeldForSale


Below
Period End2020-09-302020-06-302019-09-302018-12-31
Value29344449
Percentage of BelowMarketLeaseGross0.0117.70.00.0

us-gaap:BelowMarketLeaseNet

us-gaap:BelowMarketLeaseNet


Below
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-31
Value151718171820222427293117181920171516181921232528312426
Percentage of BelowMarketLeaseNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:BelowMarketLeaseNet us-gaap:ConsolidatedEntities

srt:Subsidiaries


Below
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-31
Value1517181718202224272931171820
Percentage of BelowMarketLeaseNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:BelowMarketLeaseNet us-gaap:FiniteLivedIntangibleAssetsByMajorClass

bdn:BelowMarketLeasesAcquiredIncludingLiabilitiesOfAssetsHeldForSale


Below
Period End2020-09-302020-06-302019-09-302018-12-31
Value17192431
Percentage of BelowMarketLeaseNet100.0103.3100.0100.0

us-gaap:CommonStockHeldInTrust

us-gaap:CommonStockHeldInTrust


Common
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-31
Value1817171717171616161414141413121414141313131311
Percentage of CommonStockHeldInTrust100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ContractWithCustomerLiability

us-gaap:ContractWithCustomerLiability


Contract
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312017-12-31
Value222221252434352222242842
Percentage of ContractWithCustomerLiability100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ContractWithCustomerLiability us-gaap:ConsolidatedEntities

srt:Subsidiaries


Contract
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312017-12-31
Value222221252434352222242842
Percentage of ContractWithCustomerLiability100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ContractualObligation us-gaap:BusinessAcquisition

us-gaap:ContractualObligation

bdn:DrexelSquare


Contractual
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302019-09-302019-06-302019-03-312018-12-312018-03-312017-12-31
Value7.67.67.77.78.38.53.02.72.73.43.6
Percentage of ContractualObligation100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ContractualObligation us-gaap:CounterpartyName, us-gaap:LongLivedAssetsHeldForSaleByAssetType, us-gaap:OtherCommitments, us-gaap:SubsequentEventType

bdn:InvestorInOneCommerceSquareAndTwoCommerceSquare, bdn:PhiladelphiaOffice, bdn:PreferredEquityInterestInOneCommerceSquareandTwoCommerceSquare, us-gaap:SubsequentEvent


Contractual
Period End2020-07-21
Value20
Percentage of ContractualObligation0.0

us-gaap:ContractualObligation us-gaap:LongLivedAssetsHeldForSaleByAssetType, us-gaap:OtherCommitments, us-gaap:SubsequentEventType

bdn:PhiladelphiaOffice, bdn:PreferredEquityInterestInOneCommerceSquareandTwoCommerceSquare, us-gaap:SubsequentEvent


Contractual
Period End2020-07-21
Value20
Percentage of ContractualObligation0.0

us-gaap:CumulativeDividends

us-gaap:CumulativeDividends


Cumulative
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-31
Value25132480244824152383235023182284225122172183215021182086205320211993196119311902187218421814
Percentage of CumulativeDividends100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:CumulativeEarningsDeficit

us-gaap:CumulativeEarningsDeficit


Cumulative
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-31
Value1116111711101091816812804787781795796674717704660586568560539551543545499
Percentage of CumulativeEarningsDeficit100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DebtInstrumentCarryingAmount bdn:PropertyLocation, us-gaap:LongtermDebtType

us-gaap:DebtInstrumentCarryingAmount

bdn:FourTowerBridge, us-gaap:SecuredDebt


Debt
Period End2020-09-302020-06-302020-03-312019-12-312019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-31
Value9.1079.1699.239.2919.419.4699.5269.5839.6399.6950.0
Percentage of DebtInstrumentCarryingAmount100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0

bdn:TwoLoganSquare, us-gaap:SecuredDebt


Debt
Period End2020-09-302020-06-302020-03-312019-12-312019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302015-12-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-31
Value79808081818282838384848485858686868687878888888888898989898989898989
Percentage of DebtInstrumentCarryingAmount876.0875.0874.0872.9871.0870.0869.3868.4867.6866.80.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

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

bdn:A600MillionUnsecuredCreditFacility, us-gaap:UnsecuredDebt


Debt
Period End2021-06-302021-03-31
Value5813
Percentage of DebtInstrumentCarryingAmount0.00.0

bdn:Note2023, us-gaap:UnsecuredDebt


Debt
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302015-12-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312011-12-31
Value3503503503503503503503503503503503503503503502502502502502502502502502502502502502502502502500.0
Percentage of DebtInstrumentCarryingAmount0.00.00.03843.23817.23792.03767.10.03719.43696.33674.23652.33631.13610.10.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

bdn:Note2024, us-gaap:UnsecuredDebt


Debt
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302015-12-312014-12-312014-09-302013-12-31
Value3503503503503503503502502502502502502502502502502502502502502502502502500.0
Percentage of DebtInstrumentCarryingAmount0.00.00.03843.23817.23792.03767.10.02656.72640.22624.42608.82593.62578.60.00.00.00.00.00.00.00.00.00.00.0

bdn:Note2027, us-gaap:UnsecuredDebt


Debt
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-11-092016-12-31
Value4504504504504504504504504504504504504504504504500.0
Percentage of DebtInstrumentCarryingAmount0.00.00.04941.34907.84875.44843.40.04782.14752.34723.94695.84668.54641.60.00.00.0

bdn:Note2029, us-gaap:UnsecuredDebt


Debt
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302015-12-312014-12-312014-09-302013-12-31
Value3503503503503503503502502502502502502502502502502502502502502502502502500.0
Percentage of DebtInstrumentCarryingAmount0.00.00.03843.23817.23792.03767.10.02656.72640.22624.42608.82593.62578.60.00.00.00.00.00.00.00.00.00.00.0

bdn:SevenYearTermLoan, us-gaap:UnsecuredDebt


Debt
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-12-132018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302015-12-312015-10-072014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-31
Value2502502502502502502502502502502502502502502502502502502502502502502502002002002002002002002002002002002002000.0
Percentage of DebtInstrumentCarryingAmount0.00.00.02745.12726.62708.62690.80.02656.72640.22624.40.02608.82593.62578.60.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:DebtInstrumentCarryingAmount us-gaap:LongtermDebtType

us-gaap:SecuredDebt


Debt
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-31
Value88311313315317319321323324326328320321322323325326348348562655659662666669435438441443503506509512493590712
Percentage of DebtInstrumentCarryingAmount976.03397.63396.43395.10.03392.93391.73391.13390.23389.63388.80.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:UnsecuredDebt


Debt
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302015-12-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-31
Value18861841182818281889187818281775179217891721162816281628162815811603170317031703170318531803206119291929192919471947195820272008200921711888200618831722
Percentage of DebtInstrumentCarryingAmount0.00.00.020079.220608.720353.319681.50.019044.718894.418067.516994.816896.016798.50.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:DebtInstrumentCarryingAmount us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName

bdn:UnconsolidatedRealEstateVentures


Debt
Period End2020-12-31
Value963
Percentage of DebtInstrumentCarryingAmount0.0

us-gaap:DebtInstrumentFaceAmount us-gaap:DebtInstrument, us-gaap:LongtermDebtType

us-gaap:DebtInstrumentFaceAmount

bdn:Note2023, us-gaap:UnsecuredDebt


Debt
Period End2021-06-302021-03-312020-12-312017-11-092014-12-31
Value350350350100250
Percentage of DebtInstrumentFaceAmount100.0100.0100.0100.0100.0

bdn:Note2024, us-gaap:UnsecuredDebt


Debt
Period End2021-06-302021-03-312020-12-312014-12-312014-09-30
Value350350350250250
Percentage of DebtInstrumentFaceAmount100.0100.0100.0100.00.0

bdn:Note2029, us-gaap:UnsecuredDebt