STAR


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

Table of contents



us-gaap:CommonStockValue

us-gaap:CommonStockSharesIssued

us-gaap:CommonStockSharesOutstanding

us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding

us-gaap:WeightedAverageNumberOfSharesOutstandingBasic

us-gaap:WeightedAverageNumberOfShareOutstandingBasicAndDiluted

us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount

us-gaap:EarningsPerShareBasic

us-gaap:EarningsPerShareDiluted

us-gaap:EarningsPerShareBasicAndDiluted

us-gaap:AllocatedShareBasedCompensationExpense
us-gaap:AwardType

us-gaap:ComprehensiveIncomeNetOfTax

us-gaap:ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest

us-gaap:ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest
us-gaap:ConsolidationItems, us-gaap:ProductOrService, us-gaap:StatementBusinessSegments
us-gaap:CostOfRevenue
us-gaap:ProductOrService

us-gaap:CostsAndExpenses
us-gaap:EquityMethodInvestmentNonconsolidatedInvestee

us-gaap:GainsLossesOnExtinguishmentOfDebt
us-gaap:LongtermDebtType

us-gaap:GeneralAndAdministrativeExpense

us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest

us-gaap:IncomeTaxExpenseBenefit

us-gaap:InterestExpense
us-gaap:ConsolidationItems
us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments
us-gaap:EquityMethodInvestmentNonconsolidatedInvestee
us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome, us-gaap:StatementEquityComponents
us-gaap:DebtInstrument, us-gaap:LongtermDebtType
us-gaap:InterestExpenseDebt

us-gaap:NetIncomeLoss
us-gaap:EquityMethodInvestmentNonconsolidatedInvestee

us-gaap:NetIncomeLossAttributableToNoncontrollingInterest

us-gaap:NetIncomeLossAvailableToCommonStockholdersBasic

us-gaap:NetIncomeLossAvailableToCommonStockholdersDiluted

us-gaap:OtherComprehensiveIncomeLossNetOfTax
us-gaap:StatementEquityComponents

us-gaap:PreferredStockDividendsIncomeStatementImpact

us-gaap:ProfitLoss
us-gaap:StatementEquityComponents

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

us-gaap:Assets
us-gaap:ConsolidatedEntities
us-gaap:EquityMethodInvestmentNonconsolidatedInvestee
us-gaap:InvestmentsByConsolidatedAndNonconsolidatedEntities

us-gaap:Liabilities
us-gaap:ConsolidatedEntities
us-gaap:EquityMethodInvestmentNonconsolidatedInvestee
us-gaap:InvestmentsByConsolidatedAndNonconsolidatedEntities

us-gaap:LiabilitiesAndStockholdersEquity

us-gaap:StockholdersEquity
us-gaap:EquityMethodInvestmentNonconsolidatedInvestee
us-gaap:StatementScenario, us-gaap:AdjustmentsForNewAccountingPronouncements

us-gaap:CashAndCashEquivalentsAtCarryingValue
us-gaap:ConsolidatedEntities
us-gaap:InvestmentsByConsolidatedAndNonconsolidatedEntities

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents
us-gaap:RealEstateProperties
us-gaap:ReceivablesNetCurrent

us-gaap:Land
us-gaap:RealEstateProperties
us-gaap:FiniteLivedIntangibleAssetsByMajorClass
us-gaap:AmortizationOfIntangibleAssets

us-gaap:FiniteLivedIntangibleAssetsNet

us-gaap:OperatingLeaseRightOfUseAsset

us-gaap:OtherAssets

us-gaap:LongTermDebt
us-gaap:ConsolidatedEntities
us-gaap:CumulativeEffectPeriodOfAdoption, us-gaap:AdjustmentsForNewAccountingPronouncements
us-gaap:DebtInstrument, us-gaap:LongtermDebtType
us-gaap:FairValueByMeasurementBasis
us-gaap:InvestmentsByConsolidatedAndNonconsolidatedEntities
us-gaap:LongtermDebtType
us-gaap:StatementScenario, us-gaap:AdjustmentsForNewAccountingPronouncements

us-gaap:MinorityInterest
us-gaap:EquityMethodInvestmentNonconsolidatedInvestee

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearTwo

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearThree

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFour

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFive

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive

us-gaap:OperatingLeaseLiability

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDue

us-gaap:LesseeOperatingLeaseLiabilityUndiscountedExcessAmount

us-gaap:StockholdersEquity
us-gaap:EquityMethodInvestmentNonconsolidatedInvestee
us-gaap:StatementScenario, us-gaap:AdjustmentsForNewAccountingPronouncements

us-gaap:StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest
us-gaap:CumulativeEffectPeriodOfAdoption
us-gaap:CumulativeEffectPeriodOfAdoption, us-gaap:AdjustmentsForNewAccountingPronouncements
us-gaap:CumulativeEffectPeriodOfAdoption, us-gaap:StatementEquityComponents
us-gaap:StatementEquityComponents

us-gaap:CommonStockValue

us-gaap:AdditionalPaidInCapital
us-gaap:CumulativeEffectPeriodOfAdoption, us-gaap:AdjustmentsForNewAccountingPronouncements

us-gaap:RetainedEarningsAccumulatedDeficit
us-gaap:CumulativeEffectPeriodOfAdoption, us-gaap:AdjustmentsForNewAccountingPronouncements

us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax

us-gaap:MinorityInterest
us-gaap:EquityMethodInvestmentNonconsolidatedInvestee

us-gaap:MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders
us-gaap:StatementEquityComponents

us-gaap:NetCashProvidedByUsedInOperatingActivities

us-gaap:NetCashProvidedByUsedInInvestingActivities

us-gaap:NetCashProvidedByUsedInFinancingActivities

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect

us-gaap:DepreciationDepletionAndAmortization

us-gaap:NetCashProvidedByUsedInOperatingActivities

us-gaap:NetIncomeLoss
us-gaap:EquityMethodInvestmentNonconsolidatedInvestee

us-gaap:ProfitLoss
us-gaap:StatementEquityComponents

us-gaap:ShareBasedCompensation

us-gaap:NetCashProvidedByUsedInInvestingActivities

us-gaap:NetCashProvidedByUsedInFinancingActivities

us-gaap:PaymentsOfDividendsCommonStock

us-gaap:PaymentsForRepurchaseOfCommonStock
us-gaap:AwardType
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod
dei:LegalEntity
us-gaap:DeferredTaxAssetsValuationAllowance

star:AmortizationOfDiscountsOrPremiumsDeferredInterestAndCostsOnLendingInvestments

star:AmortizationofAboveMarketLeaseandLeaseIncentiveAsset

star:CommonStockAcquiredAverageCostPerShare

star:CommonStockValueAcquiredIncludingAcquisitionCosts

star:CreditLossExpenseReversal

star:DeferredInterestonLoans

star:FinancingReceivableAndUnfundedCommitmentsCreditLossExpenseReversal

star:FundingRepaymentsForFinancialAssetsAndLiabilities
us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName
star:GainLossFromSaleOfGroundLease

star:GainLossOnSaleOfPropertiesCashFlowImpact

star:GeneralAndAdministrativeExpenseExcludingStockBasedCompensationExpense
us-gaap:ConsolidationItems
us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments

star:IncomeLossFromContinuingOperationsBeforeIncomeLossFromEquityMethodInvestmentsAndOtherItems

star:IncreaseDecreaseInAccruedInterestAndOperatingLeaseAndIncomeReceivable

star:IncreaseDecreaseInOriginationOfLoanReceivableHeldForSale

star:IssuanceOfStockAndRestrictedStockUnitAmortizationNet
us-gaap:StatementEquityComponents

star:LandDevelopmentRevenueInExcessOfCostOfSales
dei:LegalEntity
star:OptionAgreementFutureOfficeSpaceDevelopmentSquareFeet

star:OtherComprehensiveIncomeLossIncludingRealizationOfLossesOnCumulativeTranslationAdjustmentNetOfTax
us-gaap:StatementEquityComponents

star:PaymentforCapitalExpendituresonLandandDevelopmentAssets

star:ProceedsFromPrincipalRepaymentsOnPortfolioOfAssets

star:ProceedsFromSaleOfLandAndDevelopmentAssets

star:ProceedsFromSaleOfNetInvestmentLeaseProperty
us-gaap:RealEstateProperties

star:RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisition
us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments
us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName
star:RelatedPartyTransactionLoanConsiderationReceived

star:RevenueAndOtherEarnings
us-gaap:ConsolidationItems
us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments
us-gaap:RealEstateProperties
star:SaleOfNetInvestmentLeasePropertyImpairmentLoss
us-gaap:RelatedPartyTransactionsByRelatedParty
star:SaleOfPropertyAndGroundLeaseRequiredPercentageReturnOnInvestment

star:SalesTypeLeaseCashInterestIncome

star:SalesTypeLeaseInterestIncomeNoncash

star:SalesTypeLeaseNetInvestmentInLeaseNonCashInterestIncome

star:SalesTypeLeaseNoncashInterestIncome

star:SegmentProfitLoss
us-gaap:ConsolidationItems
us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments
us-gaap:AwardType
star:ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfPointsGranted
us-gaap:AwardType
star:ShareBasedCompensationArrangementBySharebasedPaymentAwardNumberOfPointsForfeited
us-gaap:AwardType
star:ShareBasedCompensationExpenseDistributionToPlanParticipants
us-gaap:AwardType
star:ShareBasedCompensationExpenseEquityComponentCommonStockPerShareAmount

star:ShareRepurchaseAccrued

star:TenantExpenseReimbursements
us-gaap:BalanceSheetLocation
star:UnfundedCommitmentsCreditLossExpenseReversal

us-gaap:AmortizationOfBelowMarketLease
us-gaap:DebtInstrument, us-gaap:LongtermDebtType
us-gaap:AmortizationOfDebtDiscountPremium

us-gaap:AmortizationOfFinancingCostsAndDiscounts

us-gaap:AssetImpairmentCharges
us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments
us-gaap:MortgageLoansOnRealEstateDescriptionTypeOfProperty
us-gaap:RealEstateProperties

us-gaap:CashFlowHedgeGainLossToBeReclassifiedWithinTwelveMonths
us-gaap:DebtInstrument, us-gaap:LongtermDebtType
us-gaap:DebtInstrumentConvertibleConversionRatio1

us-gaap:DebtSecuritiesHeldToMaturityCreditLossExpenseReversal

us-gaap:DefinedContributionPlanEmployerDiscretionaryContributionAmount
us-gaap:EquityMethodInvestmentNonconsolidatedInvestee
us-gaap:Depreciation

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

us-gaap:DividendsCommonStockCash
us-gaap:StatementEquityComponents

us-gaap:DividendsPreferredStockCash
us-gaap:StatementClassOfStock
us-gaap:StatementEquityComponents

us-gaap:EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents

us-gaap:EquityMethodInvestmentDividendsOrDistributions
us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName
us-gaap:EquityMethodInvestmentRealizedGainLossOnDisposal

us-gaap:EquitySecuritiesFvNiUnrealizedGain

us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetGainLossIncludedInOtherComprehensiveIncomeLoss

us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetSettlements
us-gaap:IncomeStatementLocation
us-gaap:FinanceLeaseInterestExpense

us-gaap:FinanceLeasePrincipalPayments
us-gaap:IncomeStatementLocation
us-gaap:FinanceLeaseRightOfUseAssetAmortization

us-gaap:GainLossOnSaleOfProperties
us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments

us-gaap:GainLossOnSaleOfPropertyPlantEquipment

us-gaap:ImpairmentOfLongLivedAssetsToBeDisposedOf
us-gaap:RealEstateProperties

us-gaap:IncomeLossFromEquityMethodInvestments
us-gaap:ConsolidationItems
us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments
us-gaap:EquityMethodInvestmentNonconsolidatedInvestee
us-gaap:EquityMethodInvestmentNonconsolidatedInvestee, us-gaap:InvestmentType
us-gaap:InvestmentType
us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome, us-gaap:StatementEquityComponents
us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName
us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName, us-gaap:EquityMethodInvestmentNonconsolidatedInvestee
us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName, us-gaap:EquityMethodInvestmentNonconsolidatedInvestee, us-gaap:InvestmentType
us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName, us-gaap:InvestmentType

us-gaap:IncreaseDecreaseInAccountsPayableAndAccruedLiabilities

us-gaap:IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets

us-gaap:InterestCostsCapitalized
us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName
us-gaap:InterestIncomeRelatedParty

us-gaap:NoncontrollingInterestIncreaseFromSubsidiaryEquityIssuance
us-gaap:StatementEquityComponents
us-gaap:IncomeStatementLocation
us-gaap:OperatingLeaseExpense

us-gaap:OperatingLeasePayments

us-gaap:OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAfterTax
us-gaap:DerivativeInstrumentRisk, us-gaap:HedgingDesignation, us-gaap:IncomeStatementLocation

us-gaap:OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationAfterTax
us-gaap:DerivativeInstrumentRisk, us-gaap:HedgingDesignation, us-gaap:IncomeStatementLocation

us-gaap:OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax

us-gaap:OtherExpenses
us-gaap:ConsolidationItems
us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments

us-gaap:OtherOperatingActivitiesCashFlowStatement

us-gaap:PaymentsForProceedsFromOtherInvestingActivities

us-gaap:PaymentsOfDebtExtinguishmentCosts

us-gaap:PaymentsOfDividendsPreferredStockAndPreferenceStock

us-gaap:PaymentsOfFinancingCosts

us-gaap:PaymentsRelatedToTaxWithholdingForShareBasedCompensation

us-gaap:PaymentsToAcquireEquityMethodInvestments

us-gaap:PaymentsToAcquireNotesReceivable

us-gaap:PaymentsToDevelopRealEstateAssets

us-gaap:PaymentsToMinorityShareholders

us-gaap:PreferredStockDividendsAndOtherAdjustments
us-gaap:AccountsNotesLoansAndFinancingReceivableByReceivableType, us-gaap:FinancialInstrumentPerformanceStatus
us-gaap:ProceedsFromCollectionOfLoansReceivable

us-gaap:ProceedsFromEquityMethodInvestmentDividendsOrDistributionsReturnOfCapital

us-gaap:ProceedsFromIssuanceOfDebt

us-gaap:ProceedsFromMinorityShareholders

us-gaap:ProceedsFromSaleOfLoansReceivable
us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName

us-gaap:ProceedsFromSaleOfRealEstate

us-gaap:ProceedsFromSaleOfRealEstateHeldforinvestment
us-gaap:RealEstateProperties

us-gaap:ProvisionForLeaseLosses
us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments

us-gaap:ProvisionForLoanLossesExpensed
us-gaap:AccountsNotesLoansAndFinancingReceivableByReceivableType
us-gaap:AccountsNotesLoansAndFinancingReceivableByReceivableType, us-gaap:FinancialInstrumentPerformanceStatus
us-gaap:BalanceSheetLocation
us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments
us-gaap:RelatedPartyTransactionsByRelatedParty
us-gaap:RelatedPartyTransactionOtherRevenuesFromTransactionsWithRelatedParty

us-gaap:RepaymentsOfDebt
us-gaap:ProductOrService, us-gaap:RelatedPartyTransactionsByRelatedParty
us-gaap:RevenueFromRelatedParties
us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName, us-gaap:InvestmentType
us-gaap:SaleOfStockConsiderationReceivedOnTransaction
us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName, us-gaap:InvestmentType
us-gaap:SaleOfStockNumberOfSharesIssuedInTransaction

us-gaap:SalesTypeLeaseImpairmentLoss
us-gaap:TitleOfIndividual, us-gaap:AwardDate
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue
us-gaap:TitleOfIndividual, us-gaap:AwardType
us-gaap:AwardType
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod

us-gaap:SharebasedCompensationArrangementBySharebasedPaymentAwardAwardVestingRightsPercentage
us-gaap:AwardType

us-gaap:StockRepurchasedAndRetiredDuringPeriodShares

us-gaap:StockRepurchasedDuringPeriodShares

us-gaap:StockRepurchasedDuringPeriodValue
us-gaap:StatementEquityComponents

us-gaap:StraightLineRent

srt:MortgageLoansOnRealEstateFaceAmountOfMortgages
us-gaap:MortgageLoansOnRealEstateLoanType

srt:RealEstateAndAccumulatedDepreciationAmountOfEncumbrances

star:AccruedInterestAndOperatingLeaseIncomeReceivableNet
us-gaap:ConsolidatedEntities
us-gaap:InvestmentsByConsolidatedAndNonconsolidatedEntities

star:AccruedLiabilitiesOtherThanInterest
us-gaap:AwardType

star:AccumulatedDepreciationFurnitureFixturesAndLeaseholdImprovements

star:AggregateCostForFederalIncomeTaxPurposes

star:AllowanceForCreditLoss
dei:LegalEntity
star:AssetsOwnedByTaxableRealEstateInvestmentTrustSubsidiaries

star:AssetsWithForeclosureElectionsCarryingValue

star:AvailableforsaleSecuritiesDebtSecuritiesFairValue
us-gaap:FinancialInstrument
us-gaap:FinancialInstrument
star:AvailableforsaleSecuritiesDebtSecurityFaceAmount

star:CashAndOtherAssets
us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName
star:CommonStockClosingPricePerShare
us-gaap:AccountsNotesLoansAndFinancingReceivableByReceivableType, us-gaap:FinancingReceivablePortfolioSegment
star:ConstructionLoanPercentComplete

star:DebtSecuritiesAmortizedCostBasis

star:DebtSecuritiesFaceAmount

star:DebtSecuritiesFairValue

star:DebtSecuritiesNetCarryingAmount

star:DebtSecuritiesUnrealizedHoldingGains

star:DeferredExpensesAndOtherAssetsNet
us-gaap:ConsolidatedEntities
us-gaap:InvestmentsByConsolidatedAndNonconsolidatedEntities
us-gaap:EquityMethodInvestmentNonconsolidatedInvestee, us-gaap:RealEstateProperties
star:EquityMethodInvestmentRelatedPartyOwnershipPercentage
us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName, us-gaap:RealEstateProperties
us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName
star:FairValueofEquityMethodInvestment

star:FinanceLeaseLiabilityToBePaidAfterYearFour

star:FinancingReceivableAndOtherLendingInvestmentsAllowanceForCreditLoss

star:FinancingReceivableBeforeAllowanceForCreditLossAndOtherLendingInvestments

star:FinancingReceivableNetOfAllowanceForCreditLossesCollectivelyEvaluatedForImpairment

star:FinancingReceivableNetOfAllowanceForCreditLossesIndividuallyEvaluatedForImpairment

star:FurnitureFixturesAndLeaseholdImprovementsNet
us-gaap:FinancialInstrument
star:HeldtomaturitySecuritiesDebtSecurityFaceAmount
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency
star:ImpairedLandandDevelopmentFairValueDisclosure
us-gaap:FairValueByMeasurementBasis, us-gaap:FairValueByMeasurementFrequency

star:LesseeOperatingLeaseLiabilityOtherAdjustments

star:LesseeOperatingLeaseLiabilityToBePaidAfterYearFour
us-gaap:RealEstateProperties
star:LessorOperatingLeasePaymentToBeReceivedAfterYearFour

star:LiabilitiesHeldForSale

star:LoanParticipationsPayableGross

star:LoanParticipationsPayableUnamortizedDiscountPremiumAndDeferredFinancingCostsNet

star:LoanParticipationsPayablegross

star:LoanPortfolioAccruedInterestAfterAllowanceForCreditLoss

star:LoansAndOtherLendingInvestments
us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments
us-gaap:AccountsNotesLoansAndFinancingReceivableByReceivableType, us-gaap:FinancialInstrumentPerformanceStatus
star:LoansReceivableNetOfDeferredIncome
us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName
star:LoansReceivableRelatedParty

star:LongTermDebtMaturityAfterYearFour
us-gaap:LongtermDebtType

star:OtherCommitments
star:UnfundedFinancialCommitments

star:OtherLendingInvestments
us-gaap:FinancialInstrument
us-gaap:FinancialInstrument
star:OtherLendingInvestmentsCollectivelyEvaluatedForImpairment

star:PerformanceBasedCommitments
star:UnfundedFinancialCommitments

star:PortfolioAssets
us-gaap:ConsolidationItems
us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments

star:PreferredStockSharesIssuedAndOutstanding
us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName
star:ProceedsFromSaleOfGroundLease
us-gaap:RelatedPartyTransactionsByRelatedParty
star:ProceedsFromSalePurchaseOptionAgreement

star:PropertiesPledgedAsCollateralBookValue
dei:LegalEntity
star:PurchaseOptionCostToAcquireProperty

star:PurchasePriceForPropertiesAcquiredFromLessee
star:AssetAcquisition
dei:LegalEntity
star:RealEstateAssetBasisDifferences

star:RealEstateAvailableAndHeldForSale
us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments
us-gaap:RealEstateProperties

star:RealEstateInvestmentPropertyAccumulatedDepreciationAndAmortization
us-gaap:RealEstateProperties

star:RealEstateInvestmentPropertyHeldForUseNet
us-gaap:ConsolidatedEntities
us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments
us-gaap:EquityMethodInvestmentNonconsolidatedInvestee, us-gaap:RealEstateProperties
us-gaap:InvestmentsByConsolidatedAndNonconsolidatedEntities
us-gaap:RealEstateProperties
us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName, us-gaap:RealEstateProperties
us-gaap:Range, star:AssetAcquisition
star:RealEstateLeaseholdImprovementAllowance
us-gaap:Range, us-gaap:RelatedPartyTransactionsByRelatedParty
dei:LegalEntity, us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName
star:RelatedPartyTransactionCommitmenttoExtendCreditAmountFunded
us-gaap:ProductOrService, us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName, us-gaap:IncomeStatementLocation
us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName
us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName
star:RelatedPartyTransactionCommitmenttoExtendCredittoCustomer
us-gaap:FairValueByMeasurementBasis
star:RestrictedCashFairValueDisclosure
us-gaap:RelatedPartyTransactionsByRelatedParty
star:SaleOfPropertyAndGroundLeaseRequiredMultiple
us-gaap:RelatedPartyTransactionsByRelatedParty
star:SaleOfPropertyAndGroundLeaseSubjectToCertainConditionsSalesPricePerAgreemen

star:SalesTypeAndDirectFinancingLeasesLeaseReceivableToBeReceivedAfterYearFour
us-gaap:FairValueByMeasurementBasis
star:SalesTypeLeaseLeaseReceivableFairValueDisclosure

star:SalesTypeLeasePresentValueDiscount

star:SalesTypeLeaseWeightedAverageRiskRating
us-gaap:AwardType
star:ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfPoints
us-gaap:AwardType
star:ShareBasedCompensationArrangementByShareBasedPaymentAwardPerformanceIncentivePlansAggregateBookValueOfInvestments

star:UnfundedCommitments
star:UnfundedFinancialCommitments
us-gaap:ConsolidatedEntities
star:VariableInterestEntityUnfundedCommitment
us-gaap:InvestmentsByConsolidatedAndNonconsolidatedEntities

us-gaap:AccountsPayableAndAccruedLiabilitiesCurrentAndNoncurrent
us-gaap:ConsolidatedEntities
us-gaap:InvestmentsByConsolidatedAndNonconsolidatedEntities
us-gaap:AccountsNotesLoansAndFinancingReceivableByReceivableType
us-gaap:AllowanceForDoubtfulAccountsReceivable
us-gaap:ConsolidatedEntities
us-gaap:AssetsNet
us-gaap:InvestmentsByConsolidatedAndNonconsolidatedEntities
us-gaap:FinancialInstrument
us-gaap:AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax

us-gaap:AvailableForSaleDebtSecuritiesAmortizedCostBasis
us-gaap:FinancialInstrument

us-gaap:AvailableForSaleSecuritiesDebtMaturitiesAfterTenYearsAmortizedCost

us-gaap:AvailableForSaleSecuritiesDebtMaturitiesAfterTenYearsFairValue
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency
us-gaap:AvailableForSaleSecuritiesDebtSecurities
us-gaap:FairValueByMeasurementBasis, us-gaap:FairValueByMeasurementFrequency
us-gaap:FinancialInstrument

us-gaap:BelowMarketLeaseAccumulatedAmortization

us-gaap:BelowMarketLeaseNet
us-gaap:FairValueByMeasurementBasis
us-gaap:CashAndCashEquivalentsFairValueDisclosure

us-gaap:ContractWithCustomerLiability

us-gaap:DebtInstrumentCarryingAmount
us-gaap:LongtermDebtType
us-gaap:DebtInstrumentCollateralAmount
us-gaap:DebtInstrument, us-gaap:LongtermDebtType
us-gaap:DebtInstrumentConvertibleConversionPrice1
us-gaap:DebtInstrument, us-gaap:FairValueByMeasurementBasis, us-gaap:LongtermDebtType
us-gaap:DebtInstrumentFairValue
us-gaap:DebtInstrument, us-gaap:LongtermDebtType
us-gaap:FairValueByMeasurementBasis
us-gaap:DebtInstrument, us-gaap:LongtermDebtType
us-gaap:DebtInstrumentInterestRateEffectivePercentage
us-gaap:DebtInstrument, us-gaap:LongtermDebtType
us-gaap:DebtInstrumentUnamortizedDiscount

us-gaap:DebtInstrumentUnamortizedDiscountPremiumAndDebtIssuanceCostsNet
us-gaap:CumulativeEffectPeriodOfAdoption, us-gaap:AdjustmentsForNewAccountingPronouncements
us-gaap:LongtermDebtType

us-gaap:DebtSecuritiesAvailableForSaleAndHeldToMaturity

us-gaap:DebtSecuritiesHeldToMaturityAllowanceForCreditLoss
us-gaap:DebtInstrument
us-gaap:DebtWeightedAverageInterestRate
us-gaap:DebtInstrument, us-gaap:LongtermDebtType

us-gaap:DeferredCostsLeasingAccumulatedAmortization

us-gaap:DeferredCostsLeasingNet

us-gaap:DeferredFinanceCostsNet

us-gaap:DeferredRentReceivablesNet
us-gaap:ConsolidatedEntities
us-gaap:InvestmentsByConsolidatedAndNonconsolidatedEntities
dei:LegalEntity
us-gaap:DeferredTaxAssetsGross
dei:LegalEntity
us-gaap:DeferredTaxAssetsTaxDeferredExpenseOther
us-gaap:BalanceSheetLocation, us-gaap:DerivativeInstrumentRisk, us-gaap:HedgingDesignation
us-gaap:DerivativeFairValueOfDerivativeLiability
us-gaap:HedgingDesignation

us-gaap:DerivativeLiabilities
us-gaap:BalanceSheetLocation, us-gaap:DerivativeInstrumentRisk, us-gaap:HedgingDesignation
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency
us-gaap:FairValueByMeasurementBasis, us-gaap:FairValueByMeasurementFrequency
us-gaap:HedgingDesignation

us-gaap:EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized
us-gaap:AwardType
us-gaap:EquityMethodInvestmentNonconsolidatedInvestee, us-gaap:RealEstateProperties
us-gaap:EquityMethodInvestmentOwnershipPercentage
us-gaap:Range, us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName
us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName
us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName, us-gaap:InvestmentType
us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName, us-gaap:RealEstateProperties
us-gaap:EquityMethodInvestmentNonconsolidatedInvestee, us-gaap:InvestmentType
us-gaap:EquityMethodInvestments
us-gaap:InvestmentType
us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName
us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName, us-gaap:EquityMethodInvestmentNonconsolidatedInvestee, us-gaap:InvestmentType
us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName, us-gaap:InvestmentType
us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName, us-gaap:RealEstateProperties

us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetValue

us-gaap:FinanceLeaseLiability

us-gaap:FinanceLeaseLiabilityPaymentsDue

us-gaap:FinanceLeaseLiabilityPaymentsDueAfterYearFive

us-gaap:FinanceLeaseLiabilityPaymentsDueNextTwelveMonths

us-gaap:FinanceLeaseLiabilityPaymentsDueYearFive

us-gaap:FinanceLeaseLiabilityPaymentsDueYearFour

us-gaap:FinanceLeaseLiabilityPaymentsDueYearThree

us-gaap:FinanceLeaseLiabilityPaymentsDueYearTwo

us-gaap:FinanceLeaseLiabilityPaymentsRemainderOfFiscalYear

us-gaap:FinanceLeaseLiabilityUndiscountedExcessAmount

us-gaap:FinanceLeaseRightOfUseAsset

us-gaap:FinanceLeaseWeightedAverageDiscountRatePercent

us-gaap:FinancingReceivableAllowanceForCreditLosses
us-gaap:AccountsNotesLoansAndFinancingReceivableByReceivableType

us-gaap:FinancingReceivableAllowanceForCreditLossesCollectivelyEvaluatedForImpairment

us-gaap:FinancingReceivableAllowanceForCreditLossesIndividuallyEvaluatedForImpairment1
us-gaap:AccountsNotesLoansAndFinancingReceivableByReceivableType
us-gaap:FinancingReceivableCollectivelyEvaluatedForImpairment
us-gaap:AccountsNotesLoansAndFinancingReceivableByReceivableType
us-gaap:FinancingReceivableIndividuallyEvaluatedForImpairment
us-gaap:FinancialInstrumentPerformanceStatus, us-gaap:FinancingReceivablePortfolioSegment
us-gaap:FinancingReceivableOriginatedFiveOrMoreYearsBeforeLatestFiscalYear
us-gaap:FinancialInstrumentPerformanceStatus, us-gaap:FinancingReceivablePortfolioSegment, us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable
us-gaap:FinancialInstrumentPerformanceStatus, us-gaap:FinancingReceivablePortfolioSegment, us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable, us-gaap:InternalCreditAssessment
us-gaap:FinancialInstrumentPerformanceStatus, us-gaap:FinancingReceivablePortfolioSegment
us-gaap:FinancingReceivableOriginatedFourYearsBeforeLatestFiscalYear
us-gaap:FinancialInstrumentPerformanceStatus, us-gaap:FinancingReceivablePortfolioSegment, us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable
us-gaap:FinancialInstrumentPerformanceStatus, us-gaap:FinancingReceivablePortfolioSegment, us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable, us-gaap:InternalCreditAssessment
us-gaap:FinancialInstrumentPerformanceStatus, us-gaap:FinancingReceivablePortfolioSegment
us-gaap:FinancingReceivableOriginatedInCurrentFiscalYear
us-gaap:FinancialInstrumentPerformanceStatus, us-gaap:FinancingReceivablePortfolioSegment, us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable
us-gaap:FinancialInstrumentPerformanceStatus, us-gaap:FinancingReceivablePortfolioSegment, us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable, us-gaap:InternalCreditAssessment
us-gaap:FinancialInstrumentPerformanceStatus, us-gaap:FinancingReceivablePortfolioSegment
us-gaap:FinancingReceivableOriginatedInFiscalYearBeforeLatestFiscalYear
us-gaap:FinancialInstrumentPerformanceStatus, us-gaap:FinancingReceivablePortfolioSegment, us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable
us-gaap:FinancialInstrumentPerformanceStatus, us-gaap:FinancingReceivablePortfolioSegment, us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable, us-gaap:InternalCreditAssessment
us-gaap:FinancialInstrumentPerformanceStatus, us-gaap:FinancingReceivablePortfolioSegment
us-gaap:FinancingReceivableOriginatedThreeYearsBeforeLatestFiscalYear
us-gaap:FinancialInstrumentPerformanceStatus, us-gaap:FinancingReceivablePortfolioSegment, us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable
us-gaap:FinancialInstrumentPerformanceStatus, us-gaap:FinancingReceivablePortfolioSegment, us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable, us-gaap:InternalCreditAssessment
us-gaap:FinancialInstrumentPerformanceStatus, us-gaap:FinancingReceivablePortfolioSegment
us-gaap:FinancingReceivableOriginatedTwoYearsBeforeLatestFiscalYear
us-gaap:FinancialInstrumentPerformanceStatus, us-gaap:FinancingReceivablePortfolioSegment, us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable
us-gaap:FinancialInstrumentPerformanceStatus, us-gaap:FinancingReceivablePortfolioSegment, us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable, us-gaap:InternalCreditAssessment
us-gaap:AccountsNotesLoansAndFinancingReceivableByReceivableType, us-gaap:FinancingReceivablePortfolioSegment
us-gaap:FinancingReceivableRecordedInvestmentCurrent
us-gaap:FinancingReceivablePortfolioSegment
us-gaap:FinancingReceivablePortfolioSegment, us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable
us-gaap:FinancingReceivablePortfolioSegment, us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable
us-gaap:FinancingReceivableRecordedInvestmentNonaccrualStatus
us-gaap:AccountsNotesLoansAndFinancingReceivableByReceivableType, us-gaap:FinancingReceivablePortfolioSegment
us-gaap:FinancingReceivableRecordedInvestmentPastDue
us-gaap:AccountsNotesLoansAndFinancingReceivableByReceivableType, us-gaap:FinancingReceivablePortfolioSegment, us-gaap:FinancingReceivablesPeriodPastDue
us-gaap:FinancingReceivablePortfolioSegment
us-gaap:FinancingReceivablePortfolioSegment, us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable
us-gaap:FinancingReceivablePortfolioSegment, us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable, us-gaap:FinancingReceivablesPeriodPastDue
us-gaap:FinancingReceivablePortfolioSegment, us-gaap:FinancingReceivablesPeriodPastDue

us-gaap:FinancingReceivableUnamortizedLoanCommitmentOriginationFeeAndPremiumDiscount
us-gaap:AccountsNotesLoansAndFinancingReceivableByReceivableType

us-gaap:FiniteLivedIntangibleAssetsAccumulatedAmortization

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseYearFive

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseYearFour

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseYearThree

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo
us-gaap:FinancialInstrument
us-gaap:HeldToMaturitySecurities

us-gaap:HeldToMaturitySecuritiesAmortizedCostBeforeOtherThanTemporaryImpairment
us-gaap:FinancialInstrument

us-gaap:HeldToMaturitySecuritiesDebtMaturitiesAfterOneThroughFiveYearsFairValue

us-gaap:HeldToMaturitySecuritiesDebtMaturitiesAfterOneThroughFiveYearsNetCarryingAmount

us-gaap:HeldToMaturitySecuritiesFairValue
us-gaap:FinancialInstrument
us-gaap:AccountsNotesLoansAndFinancingReceivableByReceivableType, us-gaap:FinancingReceivablePortfolioSegment
us-gaap:ImpairedFinancingReceivableRelatedAllowance
us-gaap:FinancingReceivablePortfolioSegment
us-gaap:FinancingReceivablePortfolioSegment, us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable
us-gaap:AccountsNotesLoansAndFinancingReceivableByReceivableType, us-gaap:FinancingReceivablePortfolioSegment
us-gaap:ImpairedFinancingReceivableWithRelatedAllowanceRecordedInvestment
us-gaap:FinancingReceivablePortfolioSegment
us-gaap:FinancingReceivablePortfolioSegment, us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable
us-gaap:AccountsNotesLoansAndFinancingReceivableByReceivableType, us-gaap:FinancingReceivablePortfolioSegment
us-gaap:ImpairedFinancingReceivableWithRelatedAllowanceUnpaidPrincipalBalance
us-gaap:FinancingReceivablePortfolioSegment
us-gaap:FinancingReceivablePortfolioSegment, us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable

us-gaap:InterestPayableCurrentAndNoncurrent

us-gaap:InventoryRealEstateLandAndLandDevelopmentCosts
us-gaap:ConsolidatedEntities
us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments
us-gaap:InvestmentsByConsolidatedAndNonconsolidatedEntities
us-gaap:RealEstateProperties

us-gaap:InvestmentBuildingAndBuildingImprovements
us-gaap:RealEstateProperties
us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName
us-gaap:InvestmentOwnedBalanceShares
us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName, us-gaap:AwardType, us-gaap:InvestmentType

us-gaap:LandAndLandImprovements
us-gaap:RealEstateProperties

us-gaap:LesseeFinanceLeaseDiscountRate

us-gaap:LesseeOperatingLeaseDiscountRate

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths

us-gaap:LesseeOperatingLeaseLiabilityPaymentsRemainderOfFiscalYear
us-gaap:RealEstateProperties
us-gaap:LessorOperatingLeasePaymentsToBeReceivedFiveYears
us-gaap:RealEstateProperties
us-gaap:LessorOperatingLeasePaymentsToBeReceivedFourYears
us-gaap:RealEstateProperties
us-gaap:LessorOperatingLeasePaymentsToBeReceivedNextTwelveMonths
us-gaap:RealEstateProperties
us-gaap:LessorOperatingLeasePaymentsToBeReceivedRemainderOfFiscalYear
us-gaap:RealEstateProperties
us-gaap:LessorOperatingLeasePaymentsToBeReceivedThereafter
us-gaap:RealEstateProperties
us-gaap:LessorOperatingLeasePaymentsToBeReceivedThreeYears
us-gaap:RealEstateProperties
us-gaap:LessorOperatingLeasePaymentsToBeReceivedTwoYears
us-gaap:DebtInstrument, us-gaap:LongtermDebtType
us-gaap:LineOfCreditFacilityRemainingBorrowingCapacity
us-gaap:Range, us-gaap:DebtInstrument, us-gaap:LongtermDebtType
us-gaap:FairValueByMeasurementBasis
us-gaap:LoansPayableFairValueDisclosure
us-gaap:FairValueByMeasurementBasis
us-gaap:LoansReceivableFairValueDisclosure

us-gaap:LoansReceivableHeldForSaleAmount
star:AssetAcquisition, us-gaap:BalanceSheetLocation
us-gaap:BalanceSheetLocation
us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency
us-gaap:FairValueByMeasurementBasis, us-gaap:FairValueByMeasurementFrequency

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalAfterYearFive
us-gaap:LongtermDebtType

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths
us-gaap:LongtermDebtType

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFive
us-gaap:LongtermDebtType

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour
us-gaap:LongtermDebtType

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree
us-gaap:LongtermDebtType

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo
us-gaap:LongtermDebtType

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalRemainderOfFiscalYear
us-gaap:LongtermDebtType

us-gaap:MortgageLoansOnRealEstate
us-gaap:MortgageLoansOnRealEstateLoanType

us-gaap:MortgageLoansOnRealEstateWritedownOrReserveAmount1
us-gaap:AccountsNotesLoansAndFinancingReceivableByReceivableType
us-gaap:NotesReceivableGross
us-gaap:AccountsNotesLoansAndFinancingReceivableByReceivableType, us-gaap:FinancingReceivablePortfolioSegment
us-gaap:AccountsNotesLoansAndFinancingReceivableByReceivableType, us-gaap:FinancingReceivablePortfolioSegment, us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable
us-gaap:FinancialInstrumentPerformanceStatus, us-gaap:FinancingReceivablePortfolioSegment
us-gaap:FinancialInstrumentPerformanceStatus, us-gaap:FinancingReceivablePortfolioSegment, us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable
us-gaap:FinancialInstrumentPerformanceStatus, us-gaap:FinancingReceivablePortfolioSegment, us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable, us-gaap:InternalCreditAssessment
us-gaap:FinancingReceivablePortfolioSegment
us-gaap:FinancingReceivablePortfolioSegment, us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable

us-gaap:NotesReceivableNet
us-gaap:AccountsNotesLoansAndFinancingReceivableByReceivableType
us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments
us-gaap:DebtInstrument
us-gaap:FairValueByMeasurementBasis

us-gaap:OperatingLeaseWeightedAverageDiscountRatePercent

us-gaap:OperatingLossCarryforwards
dei:LegalEntity

us-gaap:OtherInvestments
us-gaap:ConsolidatedEntities
us-gaap:ConsolidationItems
us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments
us-gaap:EquityMethodInvestmentNonconsolidatedInvestee
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency
us-gaap:FairValueByMeasurementBasis, us-gaap:FairValueByMeasurementFrequency
us-gaap:InvestmentsByConsolidatedAndNonconsolidatedEntities
us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName
us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName, us-gaap:EquityMethodInvestmentNonconsolidatedInvestee

us-gaap:OtherLiabilities

us-gaap:OtherReceivables

us-gaap:ParticipatingMortgageLoansParticipationLiabilitiesAmount

us-gaap:PreferredStockValue

us-gaap:PreferredStockValueOutstanding

us-gaap:RealEstateAccumulatedDepreciation

us-gaap:RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements

us-gaap:RealEstateAndAccumulatedDepreciationCarryingAmountOfLand

us-gaap:RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements

us-gaap:RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements

us-gaap:RealEstateAndAccumulatedDepreciationInitialCostOfLand

us-gaap:RealEstateGrossAtCarryingValue

us-gaap:RealEstateHeldforsale
us-gaap:RealEstateProperties

us-gaap:RealEstateInvestmentPropertyAccumulatedDepreciation
us-gaap:ConsolidatedEntities
us-gaap:InvestmentsByConsolidatedAndNonconsolidatedEntities
us-gaap:RealEstateProperties

us-gaap:RealEstateInvestmentPropertyAtCost
us-gaap:ConsolidatedEntities
us-gaap:InvestmentsByConsolidatedAndNonconsolidatedEntities

us-gaap:RealEstateInvestmentPropertyNet
us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments
us-gaap:RealEstateProperties

us-gaap:RestrictedCashAndCashEquivalents

us-gaap:SalesTypeAndDirectFinancingLeasesLeaseReceivablePaymentsToBeReceived

us-gaap:SalesTypeAndDirectFinancingLeasesLeaseReceivablePaymentsToBeReceivedFiveYears

us-gaap:SalesTypeAndDirectFinancingLeasesLeaseReceivablePaymentsToBeReceivedFourYears

us-gaap:SalesTypeAndDirectFinancingLeasesLeaseReceivablePaymentsToBeReceivedNextTwelveMonths

us-gaap:SalesTypeAndDirectFinancingLeasesLeaseReceivablePaymentsToBeReceivedRemainderOfFiscalYear

us-gaap:SalesTypeAndDirectFinancingLeasesLeaseReceivablePaymentsToBeReceivedThereafter

us-gaap:SalesTypeAndDirectFinancingLeasesLeaseReceivablePaymentsToBeReceivedThreeYears

us-gaap:SalesTypeAndDirectFinancingLeasesLeaseReceivablePaymentsToBeReceivedTwoYears

us-gaap:SalesTypeLeaseLeaseReceivable

us-gaap:SalesTypeLeaseNetInvestmentInLease
us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments

us-gaap:SalesTypeLeaseNetInvestmentInLeaseAllowanceForCreditLoss

us-gaap:SalesTypeLeaseUnguaranteedResidualAsset
us-gaap:AwardType
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber
us-gaap:AwardType
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue
us-gaap:PlanName
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant
us-gaap:AwardType
us-gaap:SharebasedCompensationArrangementBySharebasedPaymentAwardEquityInstrumentsOtherThanOptionsAggregateIntrinsicValueNonvested
us-gaap:TitleOfIndividual, us-gaap:AwardDate
us-gaap:TitleOfIndividual, us-gaap:AwardType

us-gaap:StockRepurchaseProgramAuthorizedAmount1

us-gaap:StockRepurchaseProgramRemainingAuthorizedRepurchaseAmount1
us-gaap:Range

us-gaap:UnamortizedLoanCommitmentAndOriginationFeesAndUnamortizedDiscountsOrPremiums
star:EvaluationType
us-gaap:AccountsNotesLoansAndFinancingReceivableByReceivableType

us-gaap:ValuationAllowancesAndReservesBalance
us-gaap:ValuationAllowancesAndReservesType

Plots across concepts


IncomeStatement
Net Income Loss
Expenses
Income Tax Expense Benefit
Balance Sheet
Operating Lease Right Of Use Asset
Assets
Other Assets
Current Assets
Cash And Cash Equivalents At Carrying Value
NonCurrent Assets
Operating Lease Right Of Use Asset
Liabilities
Derivative Liabilities
Noncurrent Liabilities
Minority Interest
Stockholders Equity
Retained Earnings Accumulated Deficit
CashFlow
Net Cash Provided By Used In Financing Activities
NetCashProvidedByUsedInOperatingActivities
Net Cash Provided By Used In Operating Activities
NetCashProvidedByUsedInInvestingActivities
Payments For Proceeds From Other Investing Activities
NetCashProvidedByUsedInFinancingActivities
Net Cash Provided By Used In Financing Activities
Shares
Common Stock Shares Issued
DividendsAndRepurchase
Dividends Common Stock Cash
LesseeOperatingLeaseLiabilityPaymentsDue
Lessee Operating Lease Liability Payments Remainder Of Fiscal Year
FiniteLivedIntangibleAssets
Finite Lived Intangible Assets Accumulated Amortization

Tables

  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
us-gaap:CommonStockValue ▂▂▂▂▂▂▂▁▁▁▁▁▁▁▁▁▂▂▂▂▂▂▃███████████████▇▇▇0.0720.0730.0740.0740.0760.0770.0780.0620.0620.0660.0680.0680.0680.0680.0680.0680.0720.0720.0720.0710.0720.0750.0810.1470.1460.1460.1460.1460.1460.1450.1440.1440.1440.1440.1430.1420.1420.1420.140.1390.139NA0.138NANANA
us-gaap:CommonStockSharesIssued ▂▂▂▂▂▂▂▁▁▁▁▁▁▁▁▁▂▂▂▂▂▂▃███████████████▇▇▇72.41973.4473.96774.43375.55977.05977.8162.16862.20266.06168.08567.98867.96867.90168.23668.272.1972.10572.04271.17671.89175.44181.109147.463146.229146.181145.807145.788145.77145.471144.334144.319144.29143.969142.699142.556142.527142.466140.028138.616138.608NA138.189NANANA
us-gaap:CommonStockSharesOutstanding ▃▄▄▄▄▄▅▁▁▂▂▂▂▂▂▂▃▃▃▃▃▄▅▆▆▆▆▆▆▆▆▆▆▆▆▆▆▆▆▅█72.41973.4473.96774.43375.55977.05977.8162.16862.20266.06168.08567.98867.96867.90168.23668.272.1972.10572.04271.17671.89175.44181.10985.17985.56885.5285.19185.17285.15384.85583.71785.40285.37385.05283.78283.63983.6184.35881.9280.50992.573NA92.336NANANA
us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding ▁█72.87273.901NA75.03376.23277.44464.9162.16880.25967.74768.01267.97583.69483.6768.271.71388.19572.065NA115.666118.51NANA85.76685.541NANA130.16NANANA85.39285.12584.82483.67483.62984.11383.55681.76987.95192.62194.60992.31993.3793.38293.923
us-gaap:WeightedAverageNumberOfSharesOutstandingBasic ▁█72.87273.901NA75.03376.23277.44464.9162.16864.01967.74768.01267.97567.93267.91368.271.71372.14272.065NA71.2173.984NANA85.76685.541NANA85.163NANANA85.39285.12584.82483.67483.62984.11383.55681.76987.95192.62192.45892.31993.3793.38293.923
us-gaap:WeightedAverageNumberOfShareOutstandingBasicAndDiluted 72.872NANANA76.23277.444NANANA67.747NANANANANANANA72.065NANANA77.06NANA85.54185.497NANA84.91684.81984.61785.39285.12584.82483.67483.62984.11383.556NANANANANANANANA
us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount NA2.893787NANANANANA16.306NANANANANANANANANANANANANANANANANANANA2.1e-05NANANANANANANANANANANANANANANANANANA
us-gaap:EarningsPerShareBasic ▂▃▂▃▂▂▂▃█▂▁▂▃▃▃▂▅▂▂▃▃-0.27-0.01-0.26-0.03-0.31-0.28-0.71-0.125.67-0.26-1.7-0.280.630.39-0.07-0.482.46-0.38-0.250.650.52NA0.07999999999999996-0.07-0.36NA-0.160000000000000030.26NANANA-0.36-0.31-0.49-1.04-0.86-0.7-0.66-0.43-0.71-0.380.73-0.73-0.892.27-0.27
us-gaap:EarningsPerShareDiluted ▃▃▃▃▃▃▂▃█▃▁▃▄▃▃▂▅▂▃▃▃-0.27-0.01-0.26-0.03-0.31-0.28-0.71-0.124.55-0.26-1.7-0.280.540.35-0.07-0.482.04-0.38-0.109999999999999990.440.37NA0.07999999999999996-0.07-0.36NA-0.160000000000000030.21NANANA-0.36-0.31-0.49-1.04-0.86-0.7-0.66-0.43-0.71-0.380.71-0.73-0.892.27-0.27
us-gaap:EarningsPerShareBasicAndDiluted -0.27NANANA-0.31-0.28NANANA-0.26NANANANANANANA-0.38NANANA-0.27NANA-0.36-0.26NANA-0.19-0.31-0.68-0.36-0.31-0.49-1.04-0.86-0.7-0.66-0.39999999999999997-0.71NANANA-0.89NANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
 Cost Ratio us-gaap:ConsolidationItems,us-gaap:ProductOrService,us-gaap:StatementBusinessSegments us-gaap:OperatingSegments,star:LandDevelopment,star:LandAndDevelopmentSegment32.318NANANA15.577NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 Cost Ratio us-gaap:ConsolidationItems,us-gaap:ProductOrService,us-gaap:StatementBusinessSegments us-gaap:OperatingSegments,star:LandDevelopment,star:LandandDevelopmentSegmentNA32.24948.44820.50215.57780.17642.90454.9189.07512.69940.04512.30980.927276.42918.15725.962NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 Cost Ratio us-gaap:ProductOrService star:LandDevelopment▂▂▂▁▁▃▂▂▁▁▂▁▃█▁▁32.31832.24948.44820.50215.57780.17642.90454.9189.07512.69940.04512.30980.927276.42918.15725.962NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 Cost Ratio us-gaap:EquityMethodInvestmentNonconsolidatedInvestee star:SafeholdInc.█▁44.21343.507NA38.037.35340.165NA22.31NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
us-gaap:AllocatedShareBasedCompensationExpense ▇▃▆▃▃█▅▄▅▂▁▂▂▅▃▂▂▃▂▁▁▃▁▂▂▂▃▂▂▁▃▃▃▃▂▂▂▃▇▄▂▂14.85.512.75.74.716.39.76.79.74.2491.3553.6513.59.16.1122.93.9155.93.31.41.64.61.9342.8813.9473.2384.773.2733.1962.0754.7774.5634.7195.2023.6683.5123.4474.66614.087.1534.3144.155NANANANA
us-gaap:ComprehensiveIncomeNetOfTax ▃▃▃▃▃▂▂▃█▂▁▃▃▃▃▃▅▃▃▄▄▃▃▃▃▃▃▃▃▃▂▂▃▂▂▂▂▂▂▂▂▄-11.80216.291-8.7845.739-16.984-36.391-36.322-5.604366.296-21.765-124.994-8.23749.68936.494.562-3.708190.593-14.028-5.20959.03251.199-9.08320.9826.057-18.737-14.6141.49736.299-1.994-16.027-47.17-20.536-14.989-32.343-78.982-64.946-49.975-46.883-27.678-55.172-25.00283.851NANANANA
us-gaap:ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest ▄▅▅▄▄▁▅▃▂▃▂▄█▃▃▂▆▂▁▂█▂▂▂▂▂▂▂▃▃▃▃2.7654.9784.293.2992.348-2.7533.7181.581-0.1470.79-0.4372.8489.5090.0950.076-0.165.71-1.1-2.039-0.9678.825-0.942-0.546-0.706-0.629-1.844-1.074-0.410.3250.4541.0410.166NANANANANANANANANANANANANANA
us-gaap:ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest ▃▃▃▃▃▂▂▃█▂▁▃▄▃▃▃▆▃▃▄▄▃▃▃▃▃▃▃▃▃▂▂▃▂▂▂▂▂▂▂▂▄-9.03721.269-4.4949.038-14.636-39.144-32.604-4.023366.149-20.975-125.431-5.38959.19836.5854.638-3.868196.303-15.128-7.24858.06560.024-10.02520.4365.351-19.366-16.4580.42335.889-1.669-15.573-46.12-20.369-15.3-32.532-79.119-65.612-50.697-46.858-30.749-56.174-24.98884.281NANANANA
 us-gaap:CostOfRevenue us-gaap:ConsolidationItems,us-gaap:ProductOrService,us-gaap:StatementBusinessSegments us-gaap:OperatingSegments,star:LandDevelopment,star:LandAndDevelopmentSegment30.803NANANA16.287NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:CostOfRevenue us-gaap:ConsolidationItems,us-gaap:ProductOrService,us-gaap:StatementBusinessSegments us-gaap:OperatingSegments,star:LandDevelopment,star:LandandDevelopmentSegmentNA29.32363.02321.35816.28777.05937.87848.1019.23614.44931.312.11483.361223.40715.02827.512NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:CostOfRevenue us-gaap:ConsolidationItems,us-gaap:ProductOrService,us-gaap:StatementBusinessSegments us-gaap:OperatingSegments,star:RealEstateActivity,star:LandAndDevelopmentSegment5.049NANANA3.633NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:CostOfRevenue us-gaap:ConsolidationItems,us-gaap:ProductOrService,us-gaap:StatementBusinessSegments us-gaap:OperatingSegments,star:RealEstateActivity,star:LandandDevelopmentSegmentNA4.4625.3755.3713.6338.6068.1347.4137.9818.80112.4528.8649.79210.60615.0148.672NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:CostOfRevenue us-gaap:ConsolidationItems,us-gaap:ProductOrService,us-gaap:StatementBusinessSegments us-gaap:OperatingSegments,star:RealEstateActivity,star:NetLeasing▆█▆▆▅▅▅▅▄▅▃▃▁▂▁▂6.9848.6337.0747.1366.1346.2296.4516.465.7696.1064.8474.7743.4333.9483.684.423NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:CostOfRevenue us-gaap:ConsolidationItems,us-gaap:ProductOrService,us-gaap:StatementBusinessSegments us-gaap:OperatingSegments,star:RealEstateActivity,star:OperatingProperty▂▁▂▁▁▂▂▃▃▄▅▆█▇▇█6.2563.7996.3364.4284.5097.6636.6769.3148.28811.03316.47918.64923.81821.62622.36923.185NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:CostOfRevenue us-gaap:ProductOrService star:LandDevelopment▂▂▃▁▁▃▂▂▁▁▂▁▃█▁▂30.80329.32363.02321.35816.28777.05937.87848.1019.23614.44931.312.11483.361223.415.02827.512NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:CostOfRevenue us-gaap:ProductOrService star:RealEstateActivity▂▂▂▂▁▃▃▃▃▄▆▆▇▇█▇18.28916.89418.78516.93514.27622.49821.26123.18722.03825.9433.77832.28737.04336.1841.06336.28NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:CostsAndExpenses ▂▁▃▁▁▄▃▂▁▁▆▂▄█▂▂▆▂▂▂▂▂▃▂▂▂▂▂▂▂▂▂▂▃▄▃▃▃▃▃▃▂▃▄▆131.246119.317172.332113.461113.398198.783166.039152.721129.142127.995284.07134.699226.267349.104158.856146.024272.306142.438135.581139.717149.78142.957182.25154.438155.246146.827153.493155.075151.338141.924156.655142.573149.653164.55206.594183.373196.549184.858184.735181.527174.874146.387195.023227.573266.105NA
us-gaap:GainsLossesOnExtinguishmentOfDebt NANA0.0-7.9240.0-4.115-27.2560.00.0-0.468-6.92-0.911-2.164-0.372-10.582-0.616-3.315-0.21-0.001-0.036-1.457-0.125-0.002-0.067-0.044-0.168-0.416-0.186-23.587-1.18-4.908-3.498-15.242-9.541-30.958-3.694-4.8681.704-0.882-3.207-1.047106.604-9.3829.52570.054NA
 us-gaap:GainsLossesOnExtinguishmentOfDebt us-gaap:LongtermDebtType star:UnsecuredDebtNotesNANA0.0-7.90.0-4.1-26.1NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:GeneralAndAdministrativeExpense ▆▂▅▂▁█▄▃▅▂▁▂▃▆▄▂▅▄▂▂▂▃▁▂▂▂▁▃▅▂▄▄▂▂▁▁▂▃▅▅▄▄▇▄▄30.39421.43927.74119.86818.99834.27126.09724.1127.30321.09918.4821.61323.22828.81425.53520.95527.21825.17321.59419.66619.66523.10218.75721.18120.58620.75319.01823.37726.62319.78825.10624.28520.87621.84819.18219.03719.79222.84527.96226.97825.69924.432.95724.23925.114NA
us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest ▂▂▂▂▂▂▂▂█▂▂▂▂▃▁▂▃▂▂▃▃▂▂▂▂▂▂▂▂▂▁▂▁▁▁▁▁▁▂▁▂▄▂▁▂-10.7517.324-9.996.529-14.335-12.825-35.9073.71373.905-6.945-25.246-14.1043.73918.101-66.957-24.30777.761-23.383-25.67615.45515.113-20.171-3.978-23.446-37.32-27.591-25.9027.803-20.989-31.178-60.972-45.924-56.243-57.88-84.933-78.101-86.276-53.668-48.926-76.557-27.27495.391-49.406-78.228-46.897NA
us-gaap:IncomeTaxExpenseBenefit ▅▅▅▅▅▅▅▅▅▅▅▅▅▅▄▅▅▅▅▃▅▅▆▄▅▇▆▅▅▅▅▄▅▆▅▅▆▅▁▅▄█▆▅▅0.665-0.6650.070.0780.0280.060.1150.0840.2140.0250.4290.1370.1280.121-1.92-1.2781.6440.607-0.307-8.256-1.19-0.4143.843-2.8930.8115.8784.5310.103-0.215-0.507-1.284-3.8790.4294.0751.9051.7913.4771.271-14.451.354-2.67511.0524.4660.7220.793NA
us-gaap:InterestExpense ▁▁▁▁▁▁▂▂▂▂▂▂▁▂▂▂▂▂▃▃▃▃▃▃▃▃▃▃▃▃▄▄▅▅▆▇█▇▇▇█▅▄▆▆39.41739.56341.82642.40741.9543.39247.06846.52243.75246.57748.17947.21943.17245.18246.00248.73248.80751.19353.22555.10556.04757.02157.30356.8855.82454.63255.07355.42456.5357.45661.70963.79369.15771.56683.50291.77794.47486.14386.60591.77796.77269.34468.05377.28682.313NA
 us-gaap:InterestExpenseDebt us-gaap:DebtInstrument,us-gaap:LongtermDebtType star:Unsecured3.125SeniorConvertibleNotesDueSeptember2022,star:UnsecuredDebtNotes▁▁█▁▁▁█▁▁▁█▁▁▁2.22.22.32.22.22.22.32.22.22.22.32.22.22.2NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:NetIncomeLoss ▂▃▂▃▂▂▂▃█▂▁▂▃▃▃▃▅▂▂▃▃▂▃▃▂▂▃▃▃▂▂▂▂▂▁▂▂▂▂▂▂▄▂▁▆▂-13.6695.469-13.2133.805-17.461-15.576-38.1370.781370.839-9.441-107.332-10.8650.99734.9333.214-3.556190.297-14.272-6.42159.12250.962-8.35720.526.664-19.147-10.472-0.88435.903-3.919-14.631-47.043-18.757-14.087-32.064-79.81-63.64-50.407-46.073-25.842-53.659-26.03483.472-67.05-75.49229.307-25.408
 us-gaap:NetIncomeLoss us-gaap:EquityMethodInvestmentNonconsolidatedInvestee star:SafeholdInc.▁█14.73216.908NA14.16312.51417.347NA5.432NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:NetIncomeLossAttributableToNoncontrollingInterest ▄▄▄▄▄▄▄▄▄▄▄▄█▃▃▃▆▂▂▂█▂▂▂▂▂▂▂▃▃▃▃▃▃▃▂▂▃▁▂▃▃▃▃▃2.2532.523.1532.6463.0982.6912.1152.8452.8522.4712.3042.0289.5090.0950.076-0.165.71-1.1-2.039-0.9678.825-0.942-0.546-0.706-0.629-1.841-1.071-0.4120.3250.4541.050.167-0.311-0.189-0.137-0.666-0.7220.025-3.071-1.0020.0140.43-0.3340.8580.544NA
us-gaap:NetIncomeLossAvailableToCommonStockholdersBasic ▂▃▂▃▂▂▂▃█▂▁▂▃▃▃▂▅▂▂▃▃▂▃▃▂▂▂▃▂▂▂▂▂▂▁▂▂▂▂▂▂▄▂▁▆▂-19.543-0.405-19.087-2.069-23.335-21.45-46.26-7.343362.715-17.565-115.455-18.98442.87326.809-4.91-34.53177.467-27.102-19.23846.29238.112-21.1877.143-6.072-30.95-22.553-13.26822.327-16.207-26.572-57.93-30.571-26.001-41.263-87.424-71.784-58.996-54.792-35.202-62.231-35.52567.42-67.05-83.531212.275-25.408
us-gaap:NetIncomeLossAvailableToCommonStockholdersDiluted ▂▃▂▃▂▂▂▃█▂▁▂▃▃▃▂▅▂▂▃▃-19.543-0.405-19.087-2.069-23.335-21.45-46.26-7.343364.965-17.565-115.455-18.98445.12329.059-4.91-34.53179.722-27.102-34.73851.45343.293NANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:OtherComprehensiveIncomeLossNetOfTax ▆█▇▆▆▁▆▄▄▃▂▆▅▆▆▆▆▆▆▆▆▆▆▆▆▅▆▆▆▅▆▅▅▆▆▅▆▆▅▅2.37913.285.5662.587-0.273-26.2593.418-7.649-7.542-14.005-20.4033.443-1.3081.5571.348-0.1520.2960.2441.212-0.090.237-0.7260.462-0.6070.41-4.1452.3780.3981.925-1.396-0.131-1.779-0.902-0.2790.827-1.3060.432-0.81-1.836-1.513NANANANANANA
us-gaap:PreferredStockDividendsIncomeStatementImpact ▁▁▁▁▁▁▂▂▂▂▂▂▂▂█▃▃▃▃▃▃▃▃▃▃▃▃▃▃▃▃▃▃▃▃▃▃▃▃▃▃▃▃▃▃5.8745.8745.8745.8745.8745.8748.1238.1248.1248.1248.1238.1248.1248.12426.26812.8312.8312.8312.8312.8312.8312.8312.8312.8312.8312.8312.8312.8312.8312.8312.8312.8312.7810.5810.5810.5810.5810.5810.5810.5810.5810.5810.5810.5810.58NA
us-gaap:ProfitLoss ▂▃▂▃▂▂▂▃█▂▁▂▃▃▃▂▅▂▂▃▃▂▃▃▂▂▃▃▂▂▂▂▂▂▁▂▂▂▂▂▂▄▂▁▆▂-11.4167.989-10.066.451-14.363-12.885-36.0223.626373.691-6.97-105.028-8.83260.50635.0283.29-3.716196.007-15.372-8.46158.15559.787-9.29919.9745.958-19.776-12.313-1.95535.491-3.594-14.177-45.992-18.59-14.398-32.253-79.948-64.306-51.129-46.048-28.915-54.661-26.0283.902-58.865-74.632229.851-16.142
 us-gaap:ProfitLoss us-gaap:StatementEquityComponents us-gaap:NoncontrollingInterest▃▃▃▃▃▃▃▃▃▃▃▂█▁2.2532.523.1532.6463.0982.6912.1152.8452.8522.4712.3042.0289.5090.095NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:ProfitLoss us-gaap:StatementEquityComponents us-gaap:RetainedEarnings▂▃▂▃▂▂▂▃█▂▁▂▃▃-13.6695.469-13.2133.805-17.461-15.576-38.1370.781370.839-9.441-107.332-10.8650.99734.933NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:Revenues ▁▂▃▂▁▃▂▂▁▂▂▂▃█▁▂█▂▂▂▂▂▃▂▂▂▂▂▂▂▁▁▁▁▁▁▁▁▁▁▂▂▂▂▂▃105.588113.26146.019115.05496.415173.461128.888145.33898.468106.802140.165122.141171.571364.245103.144119.872347.867113.563106.811128.668126.903114.644172.025120.487109.185112.857109.95113.486129.843108.749101.07395.802100.32994.53393.71386.24796.72194.796.4897.36129.516110.507136.035133.297135.404166.567
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
us-gaap:Assets ▂▂▂▂▂▂▂▃▂▁▂▂▃▁▂▃▂▃▂▂▂▃▃▃▃▃▃▃▃▃▃▃▄▄▄▆▆▇▇▇█4767.654793.5914861.8084888.1234882.65222.5815085.1095579.9584766.0274671.4135014.2775079.9895358.1674450.0594731.0785795.2194914.7555294.5164825.5145238.0145209.3975492.1785622.8925642.7955673.3635652.585463.1335480.6255473.4855487.7155642.0115773.345946.786077.1186150.7896940.4197186.2127589.8987517.8377753.8528291.423NA9174.514NANANA
us-gaap:Liabilities ▂▂▂▂▂▂▂▃▁▂▂▂▃▁▂▄▂▃▂▃▃▃▃▃▃▃▃▃▃▃▃▃▃▄▄▆▆▇▇▇█3758.9443742.5843797.4253794.6753768.8154062.5123847.1494279.3353444.833661.9423950.1623875.9734133.7793434.1623816.8294867.8173705.8144256.5223760.7994159.9264170.3234467.8044510.8444483.0094476.7114419.7794203.5864206.9954219.3614214.2454328.9564375.9074515.2064611.8644823.9545525.5185715.4336082.9515944.2336149.1456549.101NA7479.855NANANA
us-gaap:LiabilitiesAndStockholdersEquity ▂▂▂▂▂▂▂▃▂▁▂▂▃▁▂▃▂▃▂▂▂▃▃▃▃▃▃▃▃▃▃▃▄▄▄▆▆▇▇▇█4767.654793.5914861.8084888.1234882.65222.5815085.1095579.9584766.0274671.4135014.2775079.9895358.1674450.0594731.0785795.2194914.7555294.5164825.5145238.0145209.3975492.1785622.8925642.7955673.3635652.585463.1335480.6255473.4855487.7155642.0115773.345946.786077.1186150.7896940.4197186.2127589.8987517.8377753.8528291.423NA9174.514NANANA
us-gaap:StockholdersEquity ▁▁▁▂▂▂▃▃▃▁▁▃▃▂▂▂▄▂▃▃▂▂▃▃▄▄▄▄▄▄▄▅▅▆▄▅▆▆▇▇█811.554853.326870.969900.76921.932968.1181040.4221104.1161123.633810.371862.9781001.6161023.31981.247879.703888.0891169.278991.121016.5641025.14985.563980.1091059.1121102.4021137.9411169.1131197.0921210.5741186.9051205.5691243.261322.9621354.91383.0961238.9441325.651399.4371462.0991528.3561557.9461693.958NA1648.135NANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
us-gaap:CashAndCashEquivalentsAtCarryingValue ▁▁▁▁▁▂▂▄▂▂▄▄▅▂▃█▄▄▂▃▃▃▃▃▃▃▂▃▂▂▃▄▃▂▂▂▂▁▂▂▂▂▃▅▃154.941193.85298.63388.18780.666371.293307.172917.309330.099315.407931.751757.3841039.591366.723657.6881912.448954.279897.487328.744547.51521.363591.181711.101656.742637.136625.352472.061652.788356.513409.598513.568735.452715.906468.394256.344284.659243.843126.859356.826217.015388.946318.426504.8651119.641531.52NA
us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents ▁▁▁▁▁▂▂▄▂▂▄▄▅▂▃█▄▄▂208.37247.881150.566135.974126.963417.902352.206978.818394.253363.814974.544792.3581066.99387.144677.7331934.138977.659923.777354.627NANANA737.758NANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:ReceivablesNetCurrent us-gaap:RealEstateProperties us-gaap:LandNANA58.2NANANA94.2NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:Land NANANA294.605294.604294.604305.897307.384307.428407.97470.339NANANANANANANANANANANANANANANANA1312.1361309.5871270.5941286.9891283.5081237.8881267.6051262.381NANANA1313.74NANANANANANANA
 us-gaap:Land us-gaap:RealEstateProperties star:NetLeaseAsset▁▁▁▁▁▁▂▂▂▆█188.418188.418188.418188.418188.418188.418199.71201.197201.658302.199336.74NANANA219.092NANANA272.666NANANA306.172NANANANA321.668328.143328.143350.817NANANA344.239NANANANANANANANANANANA
 us-gaap:Land us-gaap:RealEstateProperties star:OperatingProperty▁▆▆▆▆▆▆▆▆▆█6.83103.53103.53106.187106.186106.186106.187106.187105.77105.771133.599NANANA203.278NANANA211.054NANANA133.275NANANANA144.854152.332132.934132.934NANANA132.028NANANANANANANANANANANA
 us-gaap:Land us-gaap:RealEstateProperties star:RealEstateProperties▁██195.248291.948291.948NANANA305.897NANANA470.339NANANA422.37NANANA483.72NANANA439.447NANANANANANANANANANANANANANANANANANANANANANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
 us-gaap:AmortizationOfIntangibleAssets us-gaap:FiniteLivedIntangibleAssetsByMajorClass us-gaap:LeasesAcquiredInPlace▁█2.63.2NA2.62.62.7NA2.42.22.2NA4.00.40.4NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:FiniteLivedIntangibleAssetsNet ▇▇▇▇▇▇██▇█▇▇▇▁▁▁▁▃▃▃▃▃▃▃▄▄▂▃▃▃▅▃▂▃▃149.62152.553156.041158.976161.913164.853174.973176.557154.574170.701156.281158.184162.01427.4127.12423.80120.45261.72363.09863.58664.34569.64771.44673.58878.30880.42950.08854.33657.0660.014100.65258.753.956.959.9NANANA53.6NANANA42.8NANANA
us-gaap:OperatingLeaseRightOfUseAsset ▆▇▇▇██▃▁▁▂45.89447.39748.89150.37150.83252.29534.06327.81628.90830.294NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
us-gaap:LongTermDebt ▁▁▁▂▁▂▂▃▁▁▂▂▃▁▂▄▂▃▂▂▂▃▃▃▃▄▃▃▃▃▃▃▄▄▄▆▆▇▇▇█3289.4813291.3433286.9753307.6833283.0623583.363387.083827.3593068.5563070.2963609.0863612.8093869.5763130.9343476.44278.9543368.1133882.3953389.9083749.8733770.6434110.734143.6834144.8174151.6534261.5284022.6844047.0164082.5114102.054158.1254253.1654402.4474494.6374691.4945388.865603.9395968.4355837.545995.056393.221NA7345.433NANANA
us-gaap:MinorityInterest █████████████▁▁▁▁▁▁▁▁▁▁▁▁▂▂▂▂▂▂▂▂▂▃▃▃▁▁▂▂197.152197.681193.414192.688191.853191.951197.538196.507197.564199.1201.137190.586189.26434.6534.54635.836.07843.36143.1246.34745.8935.28442.21845.80746.02450.48551.25651.70155.78656.54858.20562.07864.4268.99674.2175.04371.34244.84845.24846.76148.364NA46.524NANANA
us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearTwo ▇▇██▄▄▁6.3936.3936.7566.7563.6243.6241.803NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearThree ██████▁6.3096.3096.3936.3936.5616.5611.098NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFour ██████▁6.2976.2976.3096.3096.196.190.728NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFive NANA6.297NA6.086.080.617NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive NANA0.496NA6.5766.5761.447NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
us-gaap:StockholdersEquity ▁▁▁▂▂▂▃▃▃▁▁▃▃▂▂▂▄▂▃▃▂▂▃▃▄▄▄▄▄▄▄▅▅▆▄▅▆▆▇▇█811.554853.326870.969900.76921.932968.1181040.4221104.1161123.633810.371862.9781001.6161023.31981.247879.703888.0891169.278991.121016.5641025.14985.563980.1091059.1121102.4021137.9411169.1131197.0921210.5741186.9051205.5691243.261322.9621354.91383.0961238.9441325.651399.4371462.0991528.3561557.9461693.958NA1648.135NANANA
us-gaap:StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest ▂▂▂▃▃▃▄▄▄▂▂▃▄▂▁▁▃▂▂▂▂▂▃▃▃▄▄▄▄▄▄▅▅▆▄▅▆▆▇▇█1008.7061051.0071064.3831093.4481113.7851160.0691237.961300.6231321.1971009.4711064.1151192.2021212.5741015.897914.249923.8891205.3561034.4811059.6841071.4871031.4531015.3931101.331148.2091183.9651219.5981248.3481262.2751242.6911262.1171301.4651385.041419.321452.0921313.1541400.6931470.7791506.9471573.6041604.7071742.322NA1694.659NANANA
us-gaap:CommonStockValue ▂▂▂▂▂▂▂▁▁▁▁▁▁▁▁▁▂▂▂▂▂▂▃███████████████▇▇▇0.0720.0730.0740.0740.0760.0770.0780.0620.0620.0660.0680.0680.0680.0680.0680.0680.0720.0720.0720.0710.0720.0750.0810.1470.1460.1460.1460.1460.1460.1450.1440.1440.1440.1440.1430.1420.1420.1420.140.1390.139NA0.138NANANA
us-gaap:AdditionalPaidInCapital ▁▁▁▂▂▂▂▂▂▂▂▂▂▂▂▂▄▄▄▄▄▅▅███████████▆▆▆▆▆▆▆3185.7483204.8623240.5353247.4533260.1733275.0553284.8773297.8053297.3033335.7193352.2253351.5783350.753350.253352.6653357.4893603.9813603.5863602.1723592.713599.3353632.2463689.334023.9624007.9374007.544007.5144009.664009.4624013.3034022.1384020.8554019.4234019.853832.783829.9253828.1873825.6643834.463825.7933818.689NA3809.071NANANA
us-gaap:RetainedEarningsAccumulatedDeficit ▄▅▄▅▅▅▆▆▆▃▃▄▄▄▃▃▃▁▂▂▁▁▁▁▁▂▂▂▂▂▂▃▃▄▄▅▆▆▇▇█-2338.454-2309.763-2316.972-2289.668-2279.284-2247.504-2205.838-2153.245-2139.611-2495.836-2472.061-2350.438-2325.291-2368.162-2470.564-2465.654-2431.123-2608.59-2581.488-2562.237-2608.53-2646.661-2625.474-2633.164-2611.747-2579.771-2556.469-2542.755-2565.828-2549.079-2521.618-2461.749-2430.158-2403.291-2360.647-2270.258-2196.038-2135.05-2078.397-2041.975-1977.733NA-2014.013NANANA
 us-gaap:RetainedEarningsAccumulatedDeficit us-gaap:CumulativeEffectPeriodOfAdoption,us-gaap:AdjustmentsForNewAccountingPronouncements srt:CumulativeEffectPeriodOfAdoptionAdjustment,star:AccountingStandardsUpdate202006NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax ▄▃▂▁▁▁▃▃▄▄▆█▇█▇▇▇▇▇▇▇▇▇▇▇▇█▇▇▇▇▇▇▇█▇█████-35.824-41.858-52.68-57.111-59.045-59.522-38.707-40.522-34.137-29.594-17.270.392-2.233-0.925-2.482-3.83-3.678-3.974-4.218-5.43-5.34-5.577-4.851-5.313-4.706-5.116-0.971-3.349-3.747-5.672-4.276-4.145-2.366-1.464-1.185-2.012-0.707-1.138-0.3281.5083.02NA1.609NANANA
us-gaap:MinorityInterest █████████████▁▁▁▁▁▁▁▁▁▁▁▁▂▂▂▂▂▂▂▂▂▃▃▃▁▁▂▂197.152197.681193.414192.688191.853191.951197.538196.507197.564199.1201.137190.586189.26434.6534.54635.836.07843.36143.1246.34745.8935.28442.21845.80746.02450.48551.25651.70155.78656.54858.20562.07864.4268.99674.2175.04371.34244.84845.24846.76148.364NA46.524NANANA
us-gaap:MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders ▁▁▁▁▁▁▁▁▁▁▁▁█4.5912.1454.1923.8023.4473.7244.0723.3154.3553.2552.932.82643.174NA1.3220.129NANANANANA7.2923.8460.4944.6330.0040.0330.3081.8842.5956.2563.4463.78116.6232.330.0680.0890.5170.4690.619NANANANANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
us-gaap:NetCashProvidedByUsedInOperatingActivities ▃▄▅▄▄▃▅▃▄▃▄▃▅▃▄▃█▃▅▃▄▃▅▃▄▂▄▆▃▂▃▃▃▁▁▃▃▃▃▄▃▄▂▄-41.167-3.79528.0643.61411.205-20.99730.171-36.2927.029-46.53312.489-15.48125.43-46.566-6.595-16.109140.407-37.49135.769-14.71215.747-16.827.017-23.19-11.42-52.354-11.91285.047-22.799-60.678-30.17-43.759-22.845-83.691-99.399-27.377-21.426-35.77-19.3519.515-31.326-0.624-56.24918.5NANA
us-gaap:NetCashProvidedByUsedInInvestingActivities ▃▄▃▃▃▃▂▂▄▂▄▃▆▄▂▄▄▄▄▄▅▃▄▄▃▃▂▅▃▃▃▅▆▅█▅▆▁▅▅▇▄▇█46.343137.63536.84722.76934.324-62.761-156.839-117.26989.244-213.232199.64412.736440.35126.129-176.934100.118216.106130.195115.19586.828277.633-13.11399.32387.06113.698-16.054-135.992237.09427.37331.318-48.866233.605397.231311.477757.655295.285514.073-307.926317.609302.176681.394170.25607.889709.301NANA
us-gaap:NetCashProvidedByUsedInFinancingActivities ▅▅▅▅▄▆▃█▅▄▅▄▆▄▁█▄▇▄▅▄▅▅▅▅▆▅▅▅▅▅▄▅▅▃▄▄▅▄▃▃▄▁▅-44.687-36.414-50.602-17.386-336.469149.479-499.971738.141-65.826-350.973-29.936-271.887214.058-370.174-1071.184874.148-299.727476.038-369.721-45.963-363.196-90.031-72.047-44.2459.074221.699-32.823-25.866-57.659-74.61-142.848-170.3-126.874-15.736-686.571-227.092-375.663113.729-158.448-493.622-579.548-356.065-1166.416-139.68NANA
us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect ▅▅▅▅▄▅▃▇▅▃▆▄▇▄▁█▅▇-39.51197.31514.5929.011-290.93965.696-626.612584.56530.439-610.73182.186-274.632679.846-290.589-1256.405956.47953.882569.15NANANANANANANANANANANANANANANANANANANANANANANANANANANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
us-gaap:DepreciationDepletionAndAmortization ▄▅▄▄▄▄▄▄▃▅▆█▁▁▂▂▃▃▂▃▄▄▅▅▅▇▇▆▇▇▆▇▆▆█▆▆▆▆▄▅▅▅▅14.6615.45514.68514.62114.314.48614.67314.213.71815.66816.84219.97910.76811.1111.73611.84613.28513.06712.14513.00214.47414.70815.44315.78715.51618.50118.41417.72218.82218.61317.65719.12317.39617.35419.58116.78717.1817.23816.78615.07716.13215.93315.73415.911NANA
us-gaap:NetCashProvidedByUsedInOperatingActivities ▃▄▅▄▄▃▅▃▄▃▄▃▅▃▄▃█▃▅▃▄▃▅▃▄▂▄▆▃▂▃▃▃▁▁▃▃▃▃▄▃▄▂▄-41.167-3.79528.0643.61411.205-20.99730.171-36.2927.029-46.53312.489-15.48125.43-46.566-6.595-16.109140.407-37.49135.769-14.71215.747-16.827.017-23.19-11.42-52.354-11.91285.047-22.799-60.678-30.17-43.759-22.845-83.691-99.399-27.377-21.426-35.77-19.3519.515-31.326-0.624-56.24918.5NANA
us-gaap:NetIncomeLoss ▂▃▂▃▂▂▂▃█▂▁▂▃▃▃▃▅▂▂▃▃▂▃▃▂▂▃▃▃▂▂▂▂▂▁▂▂▂▂▂▂▄▂▁▆▂-13.6695.469-13.2133.805-17.461-15.576-38.1370.781370.839-9.441-107.332-10.8650.99734.9333.214-3.556190.297-14.272-6.42159.12250.962-8.35720.526.664-19.147-10.472-0.88435.903-3.919-14.631-47.043-18.757-14.087-32.064-79.81-63.64-50.407-46.073-25.842-53.659-26.03483.472-67.05-75.49229.307-25.408
 us-gaap:NetIncomeLoss us-gaap:EquityMethodInvestmentNonconsolidatedInvestee star:SafeholdInc.▁█14.73216.908NA14.16312.51417.347NA5.432NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:ProfitLoss ▂▃▂▃▂▂▂▃█▂▁▂▃▃▃▂▅▂▂▃▃▂▃▃▂▂▃▃▂▂▂▂▂▂▁▂▂▂▂▂▂▄▂▁▆▂-11.4167.989-10.066.451-14.363-12.885-36.0223.626373.691-6.97-105.028-8.83260.50635.0283.29-3.716196.007-15.372-8.46158.15559.787-9.29919.9745.958-19.776-12.313-1.95535.491-3.594-14.177-45.992-18.59-14.398-32.253-79.948-64.306-51.129-46.048-28.915-54.661-26.0283.902-58.865-74.632229.851-16.142
 us-gaap:ProfitLoss us-gaap:StatementEquityComponents us-gaap:NoncontrollingInterest▃▃▃▃▃▃▃▃▃▃▃▂█▁2.2532.523.1532.6463.0982.6912.1152.8452.8522.4712.3042.0289.5090.095NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:ProfitLoss us-gaap:StatementEquityComponents us-gaap:RetainedEarnings▂▃▂▃▂▂▂▃█▂▁▂▃▃-13.6695.469-13.2133.805-17.461-15.576-38.1370.781370.839-9.441-107.332-10.8650.99734.933NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:ShareBasedCompensation ▇▃▆▃▃█▅▄▅▂▁▂▂▅▃▂▂▃▂▁▁▃▁▂▂▂▃▂▂▁▃▃▃▃▂▂▂▃▇▄▂▂▃▂14.7915.50812.6795.6614.74416.279.7426.749.7054.2491.3183.6523.5029.0916.0822.9343.9155.8813.2451.4331.6344.5771.9472.883.9483.2384.773.2733.1962.0754.7774.5634.7195.2023.6683.5123.4474.66614.087.1534.3144.1555.7583.883NANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
us-gaap:NetCashProvidedByUsedInInvestingActivities ▃▄▃▃▃▃▂▂▄▂▄▃▆▄▂▄▄▄▄▄▅▃▄▄▃▃▂▅▃▃▃▅▆▅█▅▆▁▅▅▇▄▇█46.343137.63536.84722.76934.324-62.761-156.839-117.26989.244-213.232199.64412.736440.35126.129-176.934100.118216.106130.195115.19586.828277.633-13.11399.32387.06113.698-16.054-135.992237.09427.37331.318-48.866233.605397.231311.477757.655295.285514.073-307.926317.609302.176681.394170.25607.889709.301NANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
us-gaap:NetCashProvidedByUsedInFinancingActivities ▅▅▅▅▄▆▃█▅▄▅▄▆▄▁█▄▇▄▅▄▅▅▅▅▆▅▅▅▅▅▄▅▅▃▄▄▅▄▃▃▄▁▅-44.687-36.414-50.602-17.386-336.469149.479-499.971738.141-65.826-350.973-29.936-271.887214.058-370.174-1071.184874.148-299.727476.038-369.721-45.963-363.196-90.031-72.047-44.2459.074221.699-32.823-25.866-57.659-74.61-142.848-170.3-126.874-15.736-686.571-227.092-375.663113.729-158.448-493.622-579.548-356.065-1166.416-139.68NANA
us-gaap:PaymentsOfDividendsCommonStock █▇▇▇▇▇▆▆▆▆▆▆▁▁▁9.0888.2168.2678.2498.3517.7976.2956.1996.4656.16.1246.1030.00.00.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:PaymentsForRepurchaseOfCommonStock ▄▂▂▃▃▃▂▁▆▃▁▁▁▂▁▆▁▁▁▂▅█▇▃▁▁▁21.78110.7757.29313.62515.49418.1539.5021.41942.0415.3280.00.00.08.3040.045.9280.00.00.08.85431.72158.7650.50718.4430.0030.5580.0NANANANANANANANANANANANANANANANANANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31

Common Stock Value

us-gaap:CommonStockValue

us-gaap:CommonStockValue


Common
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-31
Value72000.073000.074000.074000.076000.077000.078000.062000.062000.066000.068000.068000.068000.068000.068000.068000.072000.072000.072000.071000.072000.075000.081000.0147000.0146000.0146000.0146000.0146000.0146000.0145000.0144000.0144000.0144000.0144000.0143000.0142000.0142000.0142000.0140000.0139000.0139000.0138000.0
Percentage of CommonStockValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Common Stock Shares Issued

us-gaap:CommonStockSharesIssued

us-gaap:CommonStockSharesIssued


Common
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-31
Value7273737475777762626668676767686872727271717581147146146145145145145144144144143142142142142140138138138
Percentage of CommonStockSharesIssued100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Common Stock Shares Outstanding

us-gaap:CommonStockSharesOutstanding

us-gaap:CommonStockSharesOutstanding


Common
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-31
Value727373747577776262666867676768687272727171758185858585858584838585858383838481809292
Percentage of CommonStockSharesOutstanding100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Weighted Average Number Of Diluted Shares Outstanding

us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding

us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding


Weighted
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-09-302016-06-302015-09-302015-06-302014-09-302013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value72737576776462806768678383687188721151188585130858584838384838187929492939393
Percentage of WeightedAverageNumberOfDilutedSharesOutstanding100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Weighted Average Number Of Shares Outstanding Basic

us-gaap:WeightedAverageNumberOfSharesOutstandingBasic

us-gaap:WeightedAverageNumberOfSharesOutstandingBasic


Weighted
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-09-302016-06-302015-09-302015-06-302014-09-302013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value72737576776462646768676767687172727173858585858584838384838187929292939393
Percentage of WeightedAverageNumberOfSharesOutstandingBasic100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Weighted Average Number Of Share Outstanding Basic And Diluted

us-gaap:WeightedAverageNumberOfShareOutstandingBasicAndDiluted

us-gaap:WeightedAverageNumberOfShareOutstandingBasicAndDiluted


Weighted
Period End2021-06-302020-06-302020-03-312019-03-312017-03-312016-03-312015-06-302015-03-312014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
Value727677677277858584848485858483838483
Percentage of WeightedAverageNumberOfShareOutstandingBasicAndDiluted100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount

us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount

us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount


Antidilutive
Period End2021-03-312019-09-302014-09-30
Value2.893787162.1e-05
Percentage of AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount100.0100.0100.0

Earnings Per Share Basic

us-gaap:EarningsPerShareBasic

us-gaap:EarningsPerShareBasic


Earnings
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302015-12-312015-09-302015-06-302014-12-312014-09-302013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value-0.27-0.01-0.26-0.03-0.31-0.28-0.71-0.125.67-0.26-1.7-0.280.630.39-0.07-0.482.46-0.38-0.250.650.520.08-0.07-0.36-0.160.26-0.36-0.31-0.49-1.04-0.86-0.7-0.66-0.43-0.71-0.380.73-0.73-0.892.27-0.27
Percentage of EarningsPerShareBasic100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Earnings Per Share Diluted

us-gaap:EarningsPerShareDiluted

us-gaap:EarningsPerShareDiluted


Earnings
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302015-12-312015-09-302015-06-302014-12-312014-09-302013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value-0.27-0.01-0.26-0.03-0.31-0.28-0.71-0.124.55-0.26-1.7-0.280.540.35-0.07-0.482.04-0.38-0.110.440.370.08-0.07-0.36-0.160.21-0.36-0.31-0.49-1.04-0.86-0.7-0.66-0.43-0.71-0.380.71-0.73-0.892.27-0.27
Percentage of EarningsPerShareDiluted100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Earnings Per Share Basic And Diluted

us-gaap:EarningsPerShareBasicAndDiluted

us-gaap:EarningsPerShareBasicAndDiluted


Earnings
Period End2021-06-302020-06-302020-03-312019-03-312017-03-312016-03-312015-06-302015-03-312014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302010-09-30
Value-0.27-0.31-0.28-0.26-0.38-0.27-0.36-0.26-0.19-0.31-0.68-0.36-0.31-0.49-1.04-0.86-0.7-0.66-0.4-0.71-0.89
Percentage of EarningsPerShareBasicAndDiluted100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Allocated Share Based Compensation Expense

us-gaap:AllocatedShareBasedCompensationExpense

us-gaap:AllocatedShareBasedCompensationExpense


Allocated
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-31
Value145.5125.74.7169.76.79.74.2491.3553.6513.59.16.1122.93.9155.93.31.41.64.61.9342.8813.9473.2384.773.2733.1962.0754.7774.5634.7195.2023.6683.5123.4474.666147.1534.3144.155
Percentage of AllocatedShareBasedCompensationExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues14.04.98.75.04.99.47.54.69.94.01.03.02.02.55.92.41.15.23.11.11.34.01.12.43.62.94.32.92.51.94.74.84.75.53.94.13.64.914.67.33.33.8

us-gaap:AllocatedShareBasedCompensationExpense us-gaap:AwardType

star:A20132018PerformanceIncentivePlans


Allocated
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-30
Value122.4103.42.5147.14.3
Percentage of AllocatedShareBasedCompensationExpense85.843.682.759.653.287.773.264.2
Percentage of Revenues12.02.17.23.02.68.25.53.0
Percentage of Revenues star:A20132018PerformanceIncentivePlans0.00.00.00.00.00.00.00.0

star:A20192020PerformanceIncentivePlan


Allocated
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value0.90.90.90.70.90.61.00.4
Percentage of AllocatedShareBasedCompensationExpense7.115.819.14.39.39.010.39.4
Percentage of Revenues0.60.80.90.40.70.41.00.4
Percentage of Revenues star:A20192020PerformanceIncentivePlan0.00.00.00.00.00.00.00.0

star:A20192022PerformanceIncentivePlan


Allocated
Period End2021-06-302021-03-312020-06-302020-03-31
Value0.11.40.90.7
Percentage of AllocatedShareBasedCompensationExpense0.725.519.14.3
Percentage of Revenues0.11.20.90.4
Percentage of Revenues star:A20192022PerformanceIncentivePlan0.00.00.00.0

Comprehensive Income Net Of Tax

us-gaap:ComprehensiveIncomeNetOfTax

us-gaap:ComprehensiveIncomeNetOfTax


Comprehensive
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-31
Value-11.80216-8.7845.739-16.984-36.391-36.322-5.604366-21.765-124.994-8.23749364.562-3.708190-14.028-5.2095951-9.083206.057-18.737-14.6141.49736-1.994-16.027-47.17-20.536-14.989-32.343-78.982-64.946-49.975-46.883-27.678-55.172-25.00283
Percentage of ComprehensiveIncomeNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues-11.214.4-6.05.0-17.6-21.0-28.2-3.9372.0-20.4-89.2-6.729.010.04.4-3.154.8-12.4-4.945.940.3-7.912.25.0-17.2-12.91.432.0-1.5-14.7-46.7-21.4-14.9-34.2-84.3-75.3-51.7-49.5-28.7-56.7-19.375.9

Comprehensive Income Net Of Tax Attributable To Noncontrolling Interest

us-gaap:ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest

us-gaap:ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest


Comprehensive
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-30
Value2.7654.9784.293.2992.348-2.7533.7181.581-0.1470.79-0.4372.8489.5090.0950.076-0.165.71-1.1-2.039-0.9678.825-0.942-0.546-0.706-0.629-1.844-1.074-0.410.3250.4541.0410.166
Percentage of ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues2.64.42.92.92.4-1.62.91.1-0.10.7-0.32.35.50.00.1-0.11.6-1.0-1.9-0.87.0-0.8-0.3-0.6-0.6-1.6-1.0-0.40.30.41.00.2

Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest

us-gaap:ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest

us-gaap:ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest


Comprehensive
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-31
Value-9.03721-4.4949.038-14.636-39.144-32.604-4.023366-20.975-125.431-5.38959364.638-3.868196-15.128-7.2485860-10.025205.351-19.366-16.4580.42335-1.669-15.573-46.12-20.369-15.3-32.532-79.119-65.612-50.697-46.858-30.749-56.174-24.98884
Percentage of ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues-8.618.8-3.17.9-15.2-22.6-25.3-2.8371.8-19.6-89.5-4.434.510.04.5-3.256.4-13.3-6.845.147.3-8.711.94.4-17.7-14.60.431.6-1.3-14.3-45.6-21.3-15.2-34.4-84.4-76.1-52.4-49.5-31.9-57.7-19.376.3

Cost Of Revenue

us-gaap:CostOfRevenue us-gaap:ConsolidationItems, us-gaap:ProductOrService, us-gaap:StatementBusinessSegments

us-gaap:CostOfRevenue

us-gaap:OperatingSegments, star:LandDevelopment, star:LandAndDevelopmentSegment


Cost
Period End2021-06-302020-06-30
Value3016
Percentage of CostOfRevenue100.0100.0
Percentage of Revenues29.216.9
Percentage of Revenues us-gaap:OperatingSegments star:LandDevelopment star:LandAndDevelopmentSegment95.3104.6

us-gaap:OperatingSegments, star:LandDevelopment, star:LandandDevelopmentSegment


Cost
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value296321167737489.236143112832231527
Percentage of CostOfRevenue0.00.00.0100.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of Revenues25.943.218.616.944.429.433.19.413.522.39.948.661.314.623.0
Percentage of Revenues us-gaap:OperatingSegments star:LandDevelopment star:LandandDevelopmentSegment90.90.0104.2104.696.10.087.6101.8113.80.098.4103.080.80.0106.0

us-gaap:OperatingSegments, star:RealEstateActivity, star:LandAndDevelopmentSegment


Cost
Period End2021-06-302020-06-30
Value5.0493.633
Percentage of CostOfRevenue16.422.3
Percentage of Revenues4.83.8
Percentage of Revenues us-gaap:OperatingSegments star:RealEstateActivity star:LandAndDevelopmentSegment0.00.0

us-gaap:OperatingSegments, star:RealEstateActivity, star:LandandDevelopmentSegment


Cost
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value4.4625.3755.3713.6338.6068.1347.4137.9818.801128.8649.79210158.672
Percentage of CostOfRevenue0.00.00.022.30.00.00.00.00.00.00.00.00.00.00.0
Percentage of Revenues3.93.74.73.85.06.35.18.18.28.97.35.72.914.67.2
Percentage of Revenues us-gaap:OperatingSegments star:RealEstateActivity star:LandandDevelopmentSegment0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:OperatingSegments, star:RealEstateActivity, star:NetLeasing


Cost
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value6.9848.6337.0747.1366.1346.2296.4516.465.7696.1064.8474.7743.4333.9483.684.423
Percentage of CostOfRevenue22.70.00.00.037.70.00.00.00.00.00.00.00.00.00.00.0
Percentage of Revenues6.67.64.86.26.43.65.04.45.95.73.53.92.01.13.63.7
Percentage of Revenues us-gaap:OperatingSegments star:RealEstateActivity star:NetLeasing0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:OperatingSegments, star:RealEstateActivity, star:OperatingProperty


Cost
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value6.2563.7996.3364.4284.5097.6636.6769.3148.28811161823212223
Percentage of CostOfRevenue20.30.00.00.027.70.00.00.00.00.00.00.00.00.00.00.0
Percentage of Revenues5.93.44.33.84.74.45.26.48.410.311.815.313.95.921.719.3
Percentage of Revenues us-gaap:OperatingSegments star:RealEstateActivity star:OperatingProperty0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:CostOfRevenue us-gaap:ProductOrService

star:LandDevelopment


Cost
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value30296321167737489.236143112832231527
Percentage of CostOfRevenue100.00.00.00.0100.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of Revenues29.225.943.218.616.944.429.433.19.413.522.39.948.661.314.623.0
Percentage of Revenues star:LandDevelopment95.390.90.0104.2104.696.10.087.6101.8113.80.098.4103.080.80.0106.0

star:RealEstateActivity


Cost
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value18161816142221232225333237364136
Percentage of CostOfRevenue59.40.00.00.087.70.00.00.00.00.00.00.00.00.00.00.0
Percentage of Revenues17.314.912.914.714.813.016.516.022.424.324.126.421.69.939.830.3
Percentage of Revenues star:RealEstateActivity0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Costs And Expenses

us-gaap:CostsAndExpenses

us-gaap:CostsAndExpenses


Costs
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
Value131119172113113198166152129127284134226349158146272142135139149142182154155146153155151141156142149164206183196184184181174146195227266
Percentage of CostsAndExpenses100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues124.3105.3118.098.6117.6114.6128.8105.1131.2119.8202.7110.3131.995.8154.0121.878.3125.4126.9108.6118.0124.7105.9128.2142.2130.1139.6136.6116.6130.5155.0148.8149.2174.1220.5212.6203.2195.2191.5186.4135.0132.5143.4170.7196.5

us-gaap:CostsAndExpenses us-gaap:EquityMethodInvestmentNonconsolidatedInvestee

star:SafeholdInc.


Costs
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-30
Value302724252314
Percentage of CostsAndExpenses23.122.821.722.611.99.2
Percentage of Revenues28.824.021.426.613.69.7
Percentage of Revenues star:SafeholdInc.0.062.50.00.058.70.0

Gains Losses On Extinguishment Of Debt

us-gaap:GainsLossesOnExtinguishmentOfDebt

us-gaap:GainsLossesOnExtinguishmentOfDebt


Gains
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
Value0.0-7.9240.0-4.115-27.2560.00.0-0.468-6.92-0.911-2.164-0.372-10.582-0.616-3.315-0.21-0.001-0.036-1.457-0.125-0.002-0.067-0.044-0.168-0.416-0.186-23.587-1.18-4.908-3.498-15.242-9.541-30.958-3.694-4.8681.704-0.882-3.207-1.047106-9.3829.52570
Percentage of GainsLossesOnExtinguishmentOfDebt0.0100.00.0100.0100.00.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues0.0-6.90.0-2.4-21.10.00.0-0.4-4.9-0.7-1.3-0.1-10.3-0.5-1.0-0.2-0.0-0.0-1.1-0.1-0.0-0.1-0.0-0.1-0.4-0.2-18.2-1.1-4.9-3.7-15.2-10.1-33.0-4.3-5.01.8-0.9-3.3-0.896.5-6.97.151.7

us-gaap:GainsLossesOnExtinguishmentOfDebt us-gaap:LongtermDebtType

star:UnsecuredDebtNotes


Gains
Period End2020-12-312020-09-302020-06-302020-03-312019-12-31
Value0.0-7.90.0-4.1-26.1
Percentage of GainsLossesOnExtinguishmentOfDebt0.099.70.099.695.8
Percentage of Revenues0.0-6.90.0-2.4-20.3
Percentage of Revenues star:UnsecuredDebtNotes0.00.00.00.00.0

General And Administrative Expense

us-gaap:GeneralAndAdministrativeExpense

us-gaap:GeneralAndAdministrativeExpense


General
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
Value302127191834262427211821232825202725211919231821202019232619252420211919192227262524322425
Percentage of GeneralAndAdministrativeExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues28.818.919.017.319.719.820.216.627.719.813.217.713.57.924.817.57.822.220.215.315.520.210.917.618.918.417.320.620.518.224.825.320.823.120.522.120.524.129.027.719.822.124.218.218.5

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

us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest

us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest


Income
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
Value-10.7517.324-9.996.529-14.335-12.825-35.9073.71373-6.945-25.246-14.1043.73918-66.957-24.30777-23.383-25.6761515-20.171-3.978-23.446-37.32-27.591-25.9027.803-20.989-31.178-60.972-45.924-56.243-57.88-84.933-78.101-86.276-53.668-48.926-76.557-27.27495-49.406-78.228-46.897
Percentage of IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues-10.26.5-6.85.7-14.9-7.4-27.92.6379.7-6.5-18.0-11.52.25.0-64.9-20.322.4-20.6-24.012.011.9-17.6-2.3-19.5-34.2-24.4-23.66.9-16.2-28.7-60.3-47.9-56.1-61.2-90.6-90.6-89.2-56.7-50.7-78.6-21.186.3-36.3-58.7-34.6

Income Tax Expense Benefit

us-gaap:IncomeTaxExpenseBenefit

us-gaap:IncomeTaxExpenseBenefit


Income
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
Value0.665-0.6650.070.0780.0280.060.1150.0840.2140.0250.4290.1370.1280.121-1.92-1.2781.6440.607-0.307-8.256-1.19-0.4143.843-2.8930.8115.8784.5310.103-0.215-0.507-1.284-3.8790.4294.0751.9051.7913.4771.271-14.451.354-2.675114.4660.7220.793
Percentage of IncomeTaxExpenseBenefit100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues0.6-0.60.00.10.00.00.10.10.20.00.30.10.10.0-1.9-1.10.50.5-0.3-6.4-0.9-0.42.2-2.40.75.24.10.1-0.2-0.5-1.3-4.00.44.32.02.13.61.3-15.01.4-2.110.03.30.50.6

Interest Expense

us-gaap:InterestExpense

us-gaap:InterestExpense


Interest
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
Value393941424143474643464847434546484851535556575756555455555657616369718391948686919669687782
Percentage of InterestExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues37.334.928.636.943.525.036.532.044.443.634.438.725.212.444.640.714.045.149.842.844.249.733.347.251.148.450.148.843.552.861.166.668.975.789.1106.497.791.089.894.374.762.850.058.060.8

us-gaap:InterestExpense us-gaap:ConsolidationItems

us-gaap:CorporateNonSegment


Interest
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value4.3533.9253.573.6324.9985.8868.9186.7834.1698.35310119.047
Percentage of InterestExpense11.09.98.58.611.913.618.914.69.517.922.824.721.0
Percentage of Revenues4.13.52.43.25.23.46.94.74.27.87.89.55.3
Percentage of Revenues us-gaap:CorporateNonSegment0.00.00.00.00.00.00.00.00.00.00.00.00.0

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

us-gaap:OperatingSegments, star:LandAndDevelopmentSegment


Interest
Period End2021-06-302020-06-30
Value3.8644.422
Percentage of InterestExpense9.810.5
Percentage of Revenues3.74.6
Percentage of Revenues us-gaap:OperatingSegments star:LandAndDevelopmentSegment0.00.0

us-gaap:OperatingSegments, star:LandandDevelopmentSegment


Interest
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value3.9384.3424.6064.4224.574.8185.2685.4935.1275.1025.0145.308
Percentage of InterestExpense10.010.410.910.510.510.211.312.611.010.610.612.3
Percentage of Revenues3.53.04.04.62.63.73.65.64.83.64.13.1
Percentage of Revenues us-gaap:OperatingSegments star:LandandDevelopmentSegment0.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:OperatingSegments, star:NetLeasing


Interest
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value25252626242424252321191613
Percentage of InterestExpense64.363.462.961.458.156.452.354.154.046.740.434.831.5
Percentage of Revenues24.022.118.022.625.314.119.117.324.020.413.913.57.9
Percentage of Revenues us-gaap:OperatingSegments star:NetLeasing0.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:OperatingSegments, star:OperatingProperty


Interest
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value2.032.0432.222.2892.1832.2592.392.3932.5482.9183.9654.5474.578
Percentage of InterestExpense5.25.25.35.45.25.25.15.15.86.38.29.610.6
Percentage of Revenues1.91.81.52.02.31.31.91.62.62.72.83.72.7
Percentage of Revenues us-gaap:OperatingSegments star:OperatingProperty0.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:OperatingSegments, star:RealEstateLending


Interest
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value3.8284.5785.4015.8315.9596.1996.3366.9027.9368.4138.6829.55810
Percentage of InterestExpense9.711.612.913.814.214.313.514.818.118.118.020.224.7
Percentage of Revenues3.64.03.75.16.23.64.94.78.17.96.27.86.2
Percentage of Revenues us-gaap:OperatingSegments star:RealEstateLending0.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:InterestExpense us-gaap:EquityMethodInvestmentNonconsolidatedInvestee

us-gaap:EquityMethodInvestmentNonconsolidatedInvesteeOrGroupOfInvestees


Interest
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-30
Value171515141513118.2
Percentage of InterestExpense44.939.236.634.437.431.624.017.6
Percentage of Revenues16.813.710.512.716.37.98.85.6
Percentage of Revenues us-gaap:EquityMethodInvestmentNonconsolidatedInvesteeOrGroupOfInvestees0.00.00.00.00.00.00.00.0

us-gaap:InterestExpense us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome, us-gaap:StatementEquityComponents

us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome, us-gaap:AccumulatedGainLossCashFlowHedgeIncludingNoncontrollingInterest


Interest
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value2.0292.1042.0482.0381.7991.0880.9040.5390.2660.1510.2440.144
Percentage of InterestExpense5.15.34.94.84.32.51.91.20.60.30.50.3
Percentage of Revenues1.91.91.41.81.90.60.70.40.30.10.20.1
Percentage of Revenues us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome us-gaap:AccumulatedGainLossCashFlowHedgeIncludingNoncontrollingInterest0.00.00.00.00.00.00.00.00.00.00.00.0

Interest Expense Debt

us-gaap:InterestExpenseDebt us-gaap:DebtInstrument, us-gaap:LongtermDebtType

us-gaap:InterestExpenseDebt

star:Unsecured3.125SeniorConvertibleNotesDueSeptember2022, star:UnsecuredDebtNotes


Interest
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value2200000.02200000.02300000.02200000.02200000.02200000.02300000.02200000.02200000.02200000.02300000.02200000.02200000.02200000.0
Percentage of InterestExpenseDebt100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues2.11.91.61.92.31.31.81.52.22.11.61.81.30.6
Percentage of Revenues star:Unsecured3.125SeniorConvertibleNotesDueSeptember2022 star:UnsecuredDebtNotes0.00.00.00.00.00.00.00.00.00.00.00.00.00.0

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-13.6695.469-13.2133.805-17.461-15.576-38.1370.781370-9.441-107.332-10.8650343.214-3.556190-14.272-6.4215950-8.357206.664-19.147-10.472-0.88435-3.919-14.631-47.043-18.757-14.087-32.064-79.81-63.64-50.407-46.073-25.842-53.659-26.03483-67.05-75.49229-25.408
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-12.94.8-9.03.3-18.1-9.0-29.60.5376.6-8.8-76.6-8.929.79.63.1-3.054.7-12.6-6.045.940.2-7.311.95.5-17.5-9.3-0.831.6-3.0-13.5-46.5-19.6-14.0-33.9-85.2-73.8-52.1-48.7-26.8-55.1-20.175.5-49.3-56.6169.4-15.3

us-gaap:NetIncomeLoss us-gaap:EquityMethodInvestmentNonconsolidatedInvestee

star:SafeholdInc.


Net
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-30
Value14161412175.432
Percentage of NetIncomeLoss-107.8309.2372.2-71.7-111.4695.5
Percentage of Revenues14.014.912.313.010.03.7
Percentage of Revenues star:SafeholdInc.0.038.90.00.043.20.0

Net Income Loss Attributable To Noncontrolling Interest

us-gaap:NetIncomeLossAttributableToNoncontrollingInterest

us-gaap:NetIncomeLossAttributableToNoncontrollingInterest


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
Value2.2532.523.1532.6463.0982.6912.1152.8452.8522.4712.3042.0289.5090.0950.076-0.165.71-1.1-2.039-0.9678.825-0.942-0.546-0.706-0.629-1.841-1.071-0.4120.3250.4541.050.167-0.311-0.189-0.137-0.666-0.7220.025-3.071-1.0020.0140.43-0.3340.8580.544
Percentage of NetIncomeLossAttributableToNoncontrollingInterest100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues2.12.22.22.33.21.61.62.02.92.31.61.75.50.00.1-0.11.6-1.0-1.9-0.87.0-0.8-0.3-0.6-0.6-1.6-1.0-0.40.30.41.00.2-0.3-0.2-0.1-0.8-0.70.0-3.2-1.00.00.4-0.20.60.4

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-19.543-0.405-19.087-2.069-23.335-21.45-46.26-7.343362-17.565-115.455-18.9844226-4.91-34.53177-27.102-19.2384638-21.1877.143-6.072-30.95-22.553-13.26822-16.207-26.572-57.93-30.571-26.001-41.263-87.424-71.784-58.996-54.792-35.202-62.231-35.52567-67.05-83.531212-25.408
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-18.5-0.4-13.1-1.8-24.2-12.4-35.9-5.1368.4-16.4-82.4-15.525.07.4-4.8-28.851.0-23.9-18.036.030.0-18.54.2-5.0-28.3-20.0-12.119.7-12.5-24.4-57.3-31.9-25.9-43.6-93.3-83.2-61.0-57.9-36.5-63.9-27.461.0-49.3-62.7156.8-15.3

Net Income Loss Available To Common Stockholders Diluted

us-gaap:NetIncomeLossAvailableToCommonStockholdersDiluted

us-gaap:NetIncomeLossAvailableToCommonStockholdersDiluted


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-30
Value-19.543-0.405-19.087-2.069-23.335-21.45-46.26-7.343364-17.565-115.455-18.9844529-4.91-34.53179-27.102-34.7385143
Percentage of NetIncomeLossAvailableToCommonStockholdersDiluted100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues-18.5-0.4-13.1-1.8-24.2-12.4-35.9-5.1370.6-16.4-82.4-15.526.38.0-4.8-28.851.7-23.9-32.540.034.1

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
Value2.379135.5662.587-0.273-26.2593.418-7.649-7.542-14.005-20.4033.443-1.3081.5571.348-0.1520.2960.2441.212-0.090.237-0.7260.462-0.6070.41-4.1452.3780.3981.925-1.396-0.131-1.779-0.902-0.2790.827-1.3060.432-0.81-1.836-1.513
Percentage of OtherComprehensiveIncomeLossNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues2.311.73.82.2-0.3-15.12.7-5.3-7.7-13.1-14.62.8-0.80.41.3-0.10.10.21.1-0.10.2-0.60.3-0.50.4-3.72.20.41.5-1.3-0.1-1.9-0.9-0.30.9-1.50.4-0.9-1.9-1.6

us-gaap:OtherComprehensiveIncomeLossNetOfTax us-gaap:StatementEquityComponents

us-gaap:AccumulatedOtherComprehensiveIncome


Other
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-09-302017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-31
Value104.4311.9340.477-20.8151.815-6.385-4.543-12.3242.6231.348-0.1520.2960.2441.212-0.090.237-0.7260.462-0.6070.41-4.1452.3780.3981.925-1.396-0.131-1.779-0.902-0.2790.827
Percentage of OtherComprehensiveIncomeLossNetOfTax81.579.674.8-174.779.353.183.560.288.076.2100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues9.63.01.70.5-12.01.4-4.4-4.6-11.52.11.3-0.10.10.21.1-0.10.2-0.60.3-0.50.4-3.72.20.41.5-1.3-0.1-1.9-0.9-0.30.9
Percentage of Revenues us-gaap:AccumulatedOtherComprehensiveIncome0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:NoncontrollingInterest


Other
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-09-30
Value2.4581.1350.653-0.75-5.4441.603-1.264-2.999-1.6810.82
Percentage of OtherComprehensiveIncomeLossNetOfTax18.520.425.2274.720.746.916.539.812.023.8
Percentage of Revenues2.20.80.6-0.8-3.11.2-0.9-3.0-1.60.7
Percentage of Revenues us-gaap:NoncontrollingInterest0.00.00.00.00.00.00.00.00.00.0

Preferred Stock Dividends Income Statement Impact

us-gaap:PreferredStockDividendsIncomeStatementImpact

us-gaap:PreferredStockDividendsIncomeStatementImpact


Preferred
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
Value5.8745.8745.8745.8745.8745.8748.1238.1248.1248.1248.1238.1248.1248.12426121212121212121212121212121212121212101010101010101010101010
Percentage of PreferredStockDividendsIncomeStatementImpact100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues5.65.24.05.16.13.46.35.68.37.65.86.74.72.225.510.73.711.312.010.010.111.27.510.611.811.411.711.39.911.812.713.412.711.211.312.310.911.211.010.98.29.67.87.97.8

Profit Loss

us-gaap:ProfitLoss

us-gaap:ProfitLoss


Profit
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value-11.4167.989-10.066.451-14.363-12.885-36.0223.626373-6.97-105.028-8.83260353.29-3.716196-15.372-8.4615859-9.299195.958-19.776-12.313-1.95535-3.594-14.177-45.992-18.59-14.398-32.253-79.948-64.306-51.129-46.048-28.915-54.661-26.0283-58.865-74.632229-16.142
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-10.87.1-6.95.6-14.9-7.4-27.92.5379.5-6.5-74.9-7.235.39.63.2-3.156.3-13.5-7.945.247.1-8.111.64.9-18.1-10.9-1.831.3-2.8-13.0-45.5-19.4-14.4-34.1-85.3-74.6-52.9-48.6-30.0-56.1-20.175.9-43.3-56.0169.8-9.7

us-gaap:ProfitLoss us-gaap:StatementEquityComponents

us-gaap:NoncontrollingInterest


Profit
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value2.2532.523.1532.6463.0982.6912.1152.8452.8522.4712.3042.0289.5090.095
Percentage of ProfitLoss-19.731.5-31.341.0-21.6-20.9-5.978.50.8-35.5-2.2-23.015.70.3
Percentage of Revenues2.12.22.22.33.21.61.62.02.92.31.61.75.50.0
Percentage of Revenues us-gaap:NoncontrollingInterest0.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:RetainedEarnings


Profit
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value-13.6695.469-13.2133.805-17.461-15.576-38.1370.781370-9.441-107.332-10.865034
Percentage of ProfitLoss119.768.5131.359.0121.6120.9105.921.599.2135.5102.2123.084.399.7
Percentage of Revenues-12.94.8-9.03.3-18.1-9.0-29.60.5376.6-8.8-76.6-8.929.79.6
Percentage of Revenues us-gaap:RetainedEarnings0.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Revenues

us-gaap:Revenues

us-gaap:Revenues


Revenues
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value10511314611596173128145981061401221713641031193471131061281261141721201091121091131291081019510094938696949697129110136133135166
Percentage of Revenues100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:Revenues us-gaap:ConsolidationItems, us-gaap:ProductOrService

us-gaap:CorporateNonSegment, star:OtherIncomeRevenue


Revenuesus-gaap:
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value0.0545.7140.339140.237111.7222.0731.2963.3824.2823.9372.3281.2721.9313.14
Percentage of Revenues0.15.00.212.30.26.91.31.41.33.23.13.21.40.31.92.6
Percentage of Revenues0.15.00.212.30.26.91.31.41.33.23.13.21.40.31.92.6
Percentage of Revenues us-gaap:CorporateNonSegment star:OtherIncomeRevenue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

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

us-gaap:OperatingSegments, star:InterestIncomeRevenue, star:NetLeasing


Revenuesus-gaap:
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value1.1880.8780.8460.9110.860.8230.8210.7890.4080.00.00.00.00.00.00.0
Percentage of Revenues1.10.80.60.80.90.50.60.50.40.00.00.00.00.00.00.0
Percentage of Revenues1.10.80.60.80.90.50.60.50.40.00.00.00.00.00.00.0
Percentage of Revenues us-gaap:OperatingSegments star:InterestIncomeRevenue star:NetLeasing100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.00.00.00.00.00.0

us-gaap:OperatingSegments, star:InterestIncomeRevenue, star:RealEstateLending


Revenuesus-gaap:
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value7.7859.7721213141616181920232225262325
Percentage of Revenues7.48.68.511.615.19.512.713.020.219.116.418.814.77.322.721.2
Percentage of Revenues7.48.68.511.615.19.512.713.020.219.116.418.814.77.322.721.2
Percentage of Revenues us-gaap:OperatingSegments star:InterestIncomeRevenue star:RealEstateLending100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OperatingSegments, star:InterestIncomeSalesTypeLeaseRevenue, star:NetLeasing


Revenuesus-gaap:
Period End2021-03-312020-09-302020-06-302020-03-312019-09-302019-06-30
Value8.6278.368.2958.3558.3393.817
Percentage of Revenues7.67.38.64.85.73.9
Percentage of Revenues7.67.38.64.85.73.9
Percentage of Revenues us-gaap:OperatingSegments star:InterestIncomeSalesTypeLeaseRevenue star:NetLeasing100.0100.0100.0100.0100.0100.0

us-gaap:OperatingSegments, star:InterestIncomefromSalesTypeLeases, star:NetLeasing


Revenuesus-gaap:
Period End2021-06-302020-06-30
Value8.6898.295
Percentage of Revenues8.28.6
Percentage of Revenues8.28.6
Percentage of Revenues us-gaap:OperatingSegments star:InterestIncomefromSalesTypeLeases star:NetLeasing100.0100.0

us-gaap:OperatingSegments, star:LandDevelopment, star:LandAndDevelopmentSegment


Revenuesus-gaap:
Period End2021-06-302020-06-30
Value3215
Percentage of Revenues30.616.2
Percentage of Revenues30.616.2
Percentage of Revenues us-gaap:OperatingSegments star:LandDevelopment star:LandAndDevelopmentSegment100.0100.0

us-gaap:OperatingSegments, star:LandDevelopment, star:LandandDevelopmentSegment


Revenuesus-gaap:
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value324820158042549.075124012802761825
Percentage of Revenues28.533.217.816.246.233.337.89.211.928.610.147.275.917.621.7
Percentage of Revenues28.533.217.816.246.233.337.89.211.928.610.147.275.917.621.7
Percentage of Revenues us-gaap:OperatingSegments star:LandDevelopment star:LandandDevelopmentSegment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OperatingSegments, star:OperatingLeaseIncome, star:LandAndDevelopmentSegment


Revenuesus-gaap:
Period End2021-06-302020-06-30
Value0.0890.07
Percentage of Revenues0.10.1
Percentage of Revenues0.10.1
Percentage of Revenues us-gaap:OperatingSegments star:OperatingLeaseIncome star:LandAndDevelopmentSegment100.0100.0

us-gaap:OperatingSegments, star:OperatingLeaseIncome, star:LandandDevelopmentSegment


Revenuesus-gaap:
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value0.0940.0890.0890.070.1080.070.070.070.0770.10.1020.10.2550.2680.255
Percentage of Revenues0.10.10.10.10.10.10.00.10.10.10.10.10.10.30.2
Percentage of Revenues0.10.10.10.10.10.10.00.10.10.10.10.10.10.30.2
Percentage of Revenues us-gaap:OperatingSegments star:OperatingLeaseIncome star:LandandDevelopmentSegment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OperatingSegments, star:OperatingLeaseIncome, star:NetLeasing


Revenuesus-gaap:
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value40424341414141384849474529293031
Percentage of Revenues38.637.529.535.843.023.932.226.249.446.334.037.017.18.229.226.3
Percentage of Revenues38.637.529.535.843.023.932.226.249.446.334.037.017.18.229.226.3
Percentage of Revenues us-gaap:OperatingSegments star:OperatingLeaseIncome star:NetLeasing100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OperatingSegments, star:OperatingLeaseIncome, star:OperatingProperty


Revenuesus-gaap:
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value4.7034.8375.0615.1375.2425.7746.5796.0346.4559.356101315151516
Percentage of Revenues4.54.33.54.55.43.35.14.26.68.87.711.38.94.314.713.4
Percentage of Revenues4.54.33.54.55.43.35.14.26.68.87.711.38.94.314.713.4
Percentage of Revenues us-gaap:OperatingSegments star:OperatingLeaseIncome star:OperatingProperty100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OperatingSegments, star:OtherIncomeRevenue, star:LandAndDevelopmentSegment


Revenuesus-gaap:
Period End2021-06-302020-06-30
Value1.3151.103
Percentage of Revenues1.21.1
Percentage of Revenues1.21.1
Percentage of Revenues us-gaap:OperatingSegments star:OtherIncomeRevenue star:LandAndDevelopmentSegment100.0100.0

us-gaap:OperatingSegments, star:OtherIncomeRevenue, star:LandandDevelopmentSegment


Revenuesus-gaap:
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value1.389133.8311.1030.6240.9612.1241.3113.4474.680.8571.3130.4710.8291.174
Percentage of Revenues1.29.23.31.10.40.71.51.33.23.30.70.80.10.81.0
Percentage of Revenues1.29.23.31.10.40.71.51.33.23.30.70.80.10.81.0
Percentage of Revenues us-gaap:OperatingSegments star:OtherIncomeRevenue star:LandandDevelopmentSegment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OperatingSegments, star:OtherIncomeRevenue, star:NetLeasing


Revenuesus-gaap:
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value4.694.7514.6484.5544.6214.2934.0136.3472.9373.421.5311.0080.6981.0490.5940.953
Percentage of Revenues4.44.23.24.04.82.53.14.43.03.21.10.80.40.30.60.8
Percentage of Revenues4.44.23.24.04.82.53.14.43.03.21.10.80.40.30.60.8
Percentage of Revenues us-gaap:OperatingSegments star:OtherIncomeRevenue star:NetLeasing100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OperatingSegments, star:OtherIncomeRevenue, star:OperatingProperty


Revenuesus-gaap:
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value3.9532.3371.462.9560.4923.1573.4247.6113.9742.3757.6132113121114
Percentage of Revenues3.72.11.02.60.51.82.75.24.02.25.417.47.83.311.611.8
Percentage of Revenues3.72.11.02.60.51.82.75.24.02.25.417.47.83.311.611.8
Percentage of Revenues us-gaap:OperatingSegments star:OtherIncomeRevenue star:OperatingProperty100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OperatingSegments, star:OtherIncomeRevenue, star:RealEstateLending


Revenuesus-gaap:
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value0.0520.0997.7260.1043.8390.3062.110.1150.5322.1890.2850.7533.1330.3840.7791.298
Percentage of Revenues0.00.15.30.14.00.21.60.10.52.00.20.61.80.10.81.1
Percentage of Revenues0.00.15.30.14.00.21.60.10.52.00.20.61.80.10.81.1
Percentage of Revenues us-gaap:OperatingSegments star:OtherIncomeRevenue star:RealEstateLending100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:Revenues us-gaap:EquityMethodInvestmentNonconsolidatedInvestee

star:SafeholdInc.


Revenuesus-gaap:
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-30
Value444338374022
Percentage of Revenues41.938.433.038.723.215.4
Percentage of Revenues41.938.433.038.723.215.4
Percentage of Revenues star:SafeholdInc.100.0100.0100.0100.0100.0100.0

us-gaap:Revenues us-gaap:ProductOrService

star:InterestIncomeRevenue


Revenuesus-gaap:
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value8.973101314151717192020232225262325
Percentage of Revenues8.59.49.012.416.09.913.413.620.719.116.418.814.77.322.721.2
Percentage of Revenues8.59.49.012.416.09.913.413.620.719.116.418.814.77.322.721.2
Percentage of Revenues star:InterestIncomeRevenue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

star:InterestIncomeSalesTypeLeaseRevenue


Revenuesus-gaap:
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-30
Value8.6898.6278.368.2958.3558.3393.8170.00.00.0
Percentage of Revenues8.27.67.38.64.85.73.90.00.00.0
Percentage of Revenues8.27.67.38.64.85.73.90.00.00.0
Percentage of Revenues star:InterestIncomeSalesTypeLeaseRevenue100.0100.0100.0100.0100.0100.0100.00.00.00.0

star:InterestIncomefromSalesTypeLeases


Revenuesus-gaap:
Period End2021-06-302020-06-30
Value8.6898.295
Percentage of Revenues8.28.6
Percentage of Revenues8.28.6
Percentage of Revenues star:InterestIncomefromSalesTypeLeases100.0100.0

star:LandDevelopment


Revenuesus-gaap:
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value32324820158042549.075124012802761825
Percentage of Revenues30.628.533.217.816.246.233.337.89.211.928.610.147.275.917.621.7
Percentage of Revenues30.628.533.217.816.246.233.337.89.211.928.610.147.275.917.621.7
Percentage of Revenues star:LandDevelopment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

star:OperatingLeaseIncome


Revenuesus-gaap:
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value45474846464748445558585944454547
Percentage of Revenues43.141.933.040.348.627.337.430.356.055.241.948.426.012.644.139.9
Percentage of Revenues43.141.933.040.348.627.337.430.356.055.241.948.426.012.644.139.9
Percentage of Revenues star:OperatingLeaseIncome100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

star:OtherIncomeRevenue


Revenuesus-gaap:
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value10142725102012181014182720151620
Percentage of Revenues9.512.618.922.210.711.79.512.610.213.913.122.812.14.215.617.2
Percentage of Revenues9.512.618.922.210.711.79.512.610.213.913.122.812.14.215.617.2
Percentage of Revenues star:OtherIncomeRevenue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Assets

us-gaap:Assets

us-gaap:Assets


Assets
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-312009-12-31
Value47674793486148884882522250855579476646715014507953584450473157954914529448255238520954925622564256735652546354805473548756425773594660776150694071867589751777538291917412810
Percentage of Assets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:Assets us-gaap:ConsolidatedEntities

us-gaap:VariableInterestEntityPrimaryBeneficiary


Assetsus-gaap:
Period End2021-06-302021-03-312020-12-312020-03-312019-12-31
Value12041239125312961301
Percentage of Assets25.325.925.824.825.6
Percentage of Assets25.325.925.824.825.6
Percentage of Assets us-gaap:VariableInterestEntityPrimaryBeneficiary100.0100.0100.0100.0100.0

us-gaap:Assets us-gaap:EquityMethodInvestmentNonconsolidatedInvestee

us-gaap:EquityMethodInvestmentNonconsolidatedInvesteeOrGroupOfInvestees


Assetsus-gaap:
Period End2020-12-312019-12-31
Value45223653
Percentage of Assets93.071.9
Percentage of Assets93.071.9
Percentage of Assets us-gaap:EquityMethodInvestmentNonconsolidatedInvesteeOrGroupOfInvestees100.0100.0

us-gaap:Assets us-gaap:InvestmentsByConsolidatedAndNonconsolidatedEntities

us-gaap:VariableInterestEntityPrimaryBeneficiary


Assetsus-gaap:
Period End2020-09-302020-06-302019-12-31
Value127712851301
Percentage of Assets26.126.325.6
Percentage of Assets26.126.325.6
Percentage of Assets us-gaap:VariableInterestEntityPrimaryBeneficiary100.0100.0100.0

Liabilities

us-gaap:Liabilities

us-gaap:Liabilities


Liabilities
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-31
Value375837423797379437684062384742793444366139503875413334343816486737054256376041594170446745104483447644194203420642194214432843754515461148235525571560825944614965497479
Percentage of Liabilities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets78.878.178.177.677.277.875.776.772.378.478.876.377.177.280.784.075.480.477.979.480.181.380.279.478.978.276.976.877.176.876.775.875.975.978.479.679.580.179.179.379.081.5

us-gaap:Liabilities us-gaap:ConsolidatedEntities

us-gaap:VariableInterestEntityPrimaryBeneficiary


Liabilitiesus-gaap:
Period End2021-06-302021-03-312020-12-312020-03-312019-12-31
Value557599604605590
Percentage of Liabilities14.816.015.914.915.3
Percentage of Assets11.712.512.411.611.6
Percentage of Assets us-gaap:VariableInterestEntityPrimaryBeneficiary46.348.348.246.745.4

us-gaap:Liabilities us-gaap:EquityMethodInvestmentNonconsolidatedInvestee

us-gaap:EquityMethodInvestmentNonconsolidatedInvesteeOrGroupOfInvestees


Liabilitiesus-gaap:
Period End2020-12-312019-12-31
Value24371918
Percentage of Liabilities64.249.9
Percentage of Assets50.137.7
Percentage of Assets us-gaap:EquityMethodInvestmentNonconsolidatedInvesteeOrGroupOfInvestees53.952.5

us-gaap:Liabilities us-gaap:InvestmentsByConsolidatedAndNonconsolidatedEntities

us-gaap:VariableInterestEntityPrimaryBeneficiary


Liabilitiesus-gaap:
Period End2020-09-302020-06-302019-12-31
Value609607590
Percentage of Liabilities16.116.115.3
Percentage of Assets12.512.511.6
Percentage of Assets us-gaap:VariableInterestEntityPrimaryBeneficiary47.747.345.4

Liabilities And Stockholders Equity

us-gaap:LiabilitiesAndStockholdersEquity

us-gaap:LiabilitiesAndStockholdersEquity


Liabilities
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-31
Value476747934861488848825222508555794766467150145079535844504731579549145294482552385209549256225642567356525463548054735487564257735946607761506940718675897517775382919174
Percentage of LiabilitiesAndStockholdersEquity100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Stockholders Equity

us-gaap:StockholdersEquity

us-gaap:StockholdersEquity


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-31
Value8118538709009219681040110411238108621001102398187988811699911016102598598010591102113711691197121011861205124313221354138312381325139914621528155716931648
Percentage of StockholdersEquity100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets17.017.817.918.418.918.520.519.823.617.317.219.719.122.118.615.323.818.721.119.618.917.818.819.520.120.721.922.121.722.022.022.922.822.820.119.119.519.320.320.120.418.0

us-gaap:StockholdersEquity us-gaap:EquityMethodInvestmentNonconsolidatedInvestee

us-gaap:EquityMethodInvestmentNonconsolidatedInvesteeOrGroupOfInvestees


Stockholders
Period End2020-12-312019-12-31
Value20821734
Percentage of StockholdersEquity239.1166.7
Percentage of Assets42.834.1
Percentage of Assets us-gaap:EquityMethodInvestmentNonconsolidatedInvesteeOrGroupOfInvestees46.047.5

us-gaap:StockholdersEquity us-gaap:StatementScenario, us-gaap:AdjustmentsForNewAccountingPronouncements

srt:ScenarioForecast, star:AccountingStandardsUpdate202006


Stockholders
Period End2021-01-01
Value-10.0
Percentage of StockholdersEquity0.0
Percentage of Assets0.0
Percentage of Assets srt:ScenarioForecast star:AccountingStandardsUpdate2020060.0

Cash And Cash Equivalents At Carrying Value

us-gaap:CashAndCashEquivalentsAtCarryingValue

us-gaap:CashAndCashEquivalentsAtCarryingValue


Cash
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302009-12-312008-12-31
Value154193988880371307917330315931757103936665719129548973285475215917116566376254726523564095137357154682562842431263562173883185041119531224496
Percentage of CashAndCashEquivalentsAtCarryingValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets3.24.02.01.81.77.16.016.46.96.818.614.919.48.213.933.019.417.06.810.510.010.812.611.611.211.18.611.96.57.59.112.712.07.74.24.13.41.74.72.84.70.05.50.00.01.80.0

us-gaap:CashAndCashEquivalentsAtCarryingValue us-gaap:ConsolidatedEntities

us-gaap:VariableInterestEntityPrimaryBeneficiary


Cash
Period End2021-06-302021-03-312020-12-312019-12-31
Value24322219
Percentage of CashAndCashEquivalentsAtCarryingValue16.116.922.96.2
Percentage of Assets0.50.70.50.4
Percentage of Assets us-gaap:VariableInterestEntityPrimaryBeneficiary2.12.61.81.5

us-gaap:CashAndCashEquivalentsAtCarryingValue us-gaap:InvestmentsByConsolidatedAndNonconsolidatedEntities

us-gaap:VariableInterestEntityPrimaryBeneficiary


Cash
Period End2020-09-302019-12-31
Value2919
Percentage of CashAndCashEquivalentsAtCarryingValue33.96.2
Percentage of Assets0.60.4
Percentage of Assets us-gaap:VariableInterestEntityPrimaryBeneficiary2.31.5

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
Value20824715013512641735297839436397479210663876771934977923354737
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 Assets4.45.23.12.82.68.06.917.58.37.819.415.619.98.714.333.419.917.47.313.1

Receivables Net Current

us-gaap:ReceivablesNetCurrent us-gaap:RealEstateProperties

us-gaap:ReceivablesNetCurrent

us-gaap:Land


Receivables
Period End2020-12-312019-12-31
Value5894
Percentage of ReceivablesNetCurrent100.0100.0
Percentage of Assets1.21.9
Percentage of Assets us-gaap:Land0.00.0

Land

us-gaap:Land

us-gaap:Land


Land
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312011-12-31
Value294294294305307307407470131213091270128612831237126712621313
Percentage of Land100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets6.06.05.66.05.56.58.79.423.923.923.222.822.220.820.920.517.5

us-gaap:Land us-gaap:RealEstateProperties

star:NetLeaseAsset


Landus-gaap:
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312017-12-312016-12-312015-12-312014-09-302014-06-302014-03-312013-12-312012-12-31
Value188188188188188188199201201302336219272306321328328350344
Percentage of Land0.00.00.064.064.064.065.365.565.674.171.60.00.00.024.525.125.827.327.3
Percentage of Assets4.03.93.93.93.93.63.93.64.26.56.74.65.75.45.96.06.06.25.6
Percentage of Assets star:NetLeaseAsset0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

star:OperatingProperty


Landus-gaap:
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312017-12-312016-12-312015-12-312014-09-302014-06-302014-03-312013-12-312012-12-31
Value6.83103103106106106106106105105133203211133144152132132132
Percentage of Land0.00.00.036.036.036.034.734.534.425.928.40.00.00.011.011.610.510.310.5
Percentage of Assets0.12.22.12.22.22.02.11.92.22.32.74.34.42.42.62.82.42.42.1
Percentage of Assets star:OperatingProperty0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

star:RealEstateProperties


Landus-gaap:
Period End2021-06-302021-03-312020-12-312019-12-312018-12-312017-12-312016-12-312015-12-31
Value195291291305470422483439
Percentage of Land0.00.00.0100.0100.00.00.00.0
Percentage of Assets4.16.16.06.09.48.910.07.8
Percentage of Assets star:RealEstateProperties0.00.00.00.00.00.00.00.0

Amortization Of Intangible Assets

us-gaap:AmortizationOfIntangibleAssets us-gaap:FiniteLivedIntangibleAssetsByMajorClass

us-gaap:AmortizationOfIntangibleAssets

us-gaap:LeasesAcquiredInPlace


Amortization
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-31
Value2.63.22.62.62.72.42.22.24.00.40.4
Percentage of AmortizationOfIntangibleAssets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.0
Percentage of Assets us-gaap:LeasesAcquiredInPlace0.00.00.00.00.00.00.00.00.00.00.0

Finite Lived Intangible Assets Net

us-gaap:FiniteLivedIntangibleAssetsNet

us-gaap:FiniteLivedIntangibleAssetsNet


Finite
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312011-12-312010-12-31
Value1491521561581611641741761541701561581622727232061636364697173788050545760100585356595342
Percentage of FiniteLivedIntangibleAssetsNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets3.13.23.23.33.33.23.43.23.23.73.13.13.00.60.60.40.41.21.31.21.21.31.31.31.41.40.91.01.01.11.81.00.90.91.00.70.5

Operating Lease Right Of Use Asset

us-gaap:OperatingLeaseRightOfUseAsset

us-gaap:OperatingLeaseRightOfUseAsset


Operating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value45474850505234272830
Percentage of OperatingLeaseRightOfUseAsset100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets1.01.01.01.01.01.00.70.50.60.6

Other Assets

us-gaap:OtherAssets

us-gaap:OtherAssets


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312010-12-31
Value20191921171717233822323229232428294739313039353030363750364140322324222418192917
Percentage of OtherAssets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.40.40.40.40.40.30.30.40.80.50.60.60.60.50.50.50.60.90.80.60.60.70.60.50.50.60.70.90.70.80.70.60.40.40.40.30.30.30.40.2

Long Term Debt

us-gaap:LongTermDebt

us-gaap:LongTermDebt


Long
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-31
Value328932913286330732833583338738273068307036093612386931303476427833683882338937493770411041434144415142614022404740824102415842534402449446915388560359685837599563937345
Percentage of LongTermDebt100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets69.068.767.667.767.268.666.668.664.465.772.071.172.270.473.573.868.573.370.271.672.474.873.773.573.275.473.673.874.674.773.773.774.074.076.377.678.078.677.677.377.180.1

us-gaap:LongTermDebt us-gaap:ConsolidatedEntities

us-gaap:VariableInterestEntityPrimaryBeneficiary


Long
Period End2021-06-302021-03-312020-12-312019-12-31
Value480482488482
Percentage of LongTermDebt14.614.714.914.3
Percentage of Assets10.110.110.19.5
Percentage of Assets us-gaap:VariableInterestEntityPrimaryBeneficiary39.938.939.037.1

us-gaap:LongTermDebt us-gaap:CumulativeEffectPeriodOfAdoption, us-gaap:AdjustmentsForNewAccountingPronouncements

srt:CumulativeEffectPeriodOfAdoptionAdjustment, star:AccountingStandardsUpdate202006


Long
Period End2021-01-01
Value10.0
Percentage of LongTermDebt0.0
Percentage of Assets0.0
Percentage of Assets srt:CumulativeEffectPeriodOfAdoptionAdjustment star:AccountingStandardsUpdate2020060.0

us-gaap:LongTermDebt us-gaap:DebtInstrument, us-gaap:LongtermDebtType

star:Unsecured3.125SeniorConvertibleNotesDueSeptember2022, star:UnsecuredDebtNotes


Long
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312017-12-31
Value275273271270268267265264262256
Percentage of LongTermDebt8.48.38.37.57.97.08.78.67.37.4
Percentage of Assets5.75.65.65.25.34.85.65.75.25.4
Percentage of Assets star:Unsecured3.125SeniorConvertibleNotesDueSeptember2022 star:UnsecuredDebtNotes0.00.00.00.00.00.00.00.00.00.0

us-gaap:LongTermDebt us-gaap:FairValueByMeasurementBasis

us-gaap:EstimateOfFairValueFairValueDisclosure


Long
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-31
Value3300330030003600400032003300350037003900330037004500360042003600400039004300430043004300440041004200440044004500
Percentage of LongTermDebt99.8100.583.7106.3104.5104.3107.597.0102.4100.8105.4106.4105.2106.9108.2106.2106.7103.4104.6103.8103.7103.6103.2101.9103.8107.8107.3108.2
Percentage of Assets67.567.657.470.871.767.170.669.872.872.874.278.277.773.279.374.676.474.978.376.576.275.877.875.076.680.480.279.8
Percentage of Assets us-gaap:EstimateOfFairValueFairValueDisclosure0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:LongTermDebt us-gaap:InvestmentsByConsolidatedAndNonconsolidatedEntities

us-gaap:VariableInterestEntityPrimaryBeneficiary


Long
Period End2020-09-302019-12-31
Value490482
Percentage of LongTermDebt14.814.3
Percentage of Assets10.09.5
Percentage of Assets us-gaap:VariableInterestEntityPrimaryBeneficiary38.437.1

us-gaap:LongTermDebt us-gaap:LongtermDebtType

us-gaap:SecuredDebt


Long
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
Value1196119912061230120515081205135712661270143713221310575924615716958738723725804828829837842604629665200520622158230924242622288930983451
Percentage of LongTermDebt36.436.536.737.236.742.135.635.541.341.439.836.633.918.426.614.421.324.721.819.319.219.620.020.020.219.815.015.516.348.949.650.852.553.955.953.655.357.8
Percentage of Assets25.125.024.825.224.728.923.724.326.627.228.726.024.512.919.510.614.618.115.313.813.914.714.714.714.814.911.111.512.236.536.637.438.839.942.641.643.145.5
Percentage of Assets us-gaap:SecuredDebt0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:UnsecuredDebt


Long
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
Value20922091208020772077207421812470180217992171228925582555255236632651292326513026304433063315331433143419341834173417209620952094209220702068249925052517
Percentage of LongTermDebt63.663.563.362.863.357.964.464.558.758.660.263.466.181.673.485.678.775.378.280.780.880.480.080.079.880.285.084.583.751.150.449.247.546.144.146.444.742.2
Percentage of Assets43.943.642.842.542.539.742.944.337.838.543.345.147.857.453.963.254.055.254.957.858.560.259.058.758.460.562.662.462.438.237.136.335.234.133.636.034.933.2
Percentage of Assets us-gaap:UnsecuredDebt0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:LongTermDebt us-gaap:StatementScenario, us-gaap:AdjustmentsForNewAccountingPronouncements

srt:ScenarioForecast, star:AccountingStandardsUpdate202006


Long
Period End2021-01-01
Value10.0
Percentage of LongTermDebt0.0
Percentage of Assets0.0
Percentage of Assets srt:ScenarioForecast star:AccountingStandardsUpdate2020060.0

Minority Interest

us-gaap:MinorityInterest

us-gaap:MinorityInterest


Minority
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-31
Value1971971931921911911971961971992011901893434353643434645354245465051515556586264687475714445464846
Percentage of MinorityInterest100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets4.14.14.03.93.93.73.93.54.14.34.03.83.50.80.70.60.70.80.90.90.90.60.80.80.80.90.90.91.01.01.01.11.11.11.21.11.00.60.60.60.60.5

us-gaap:MinorityInterest us-gaap:EquityMethodInvestmentNonconsolidatedInvestee

us-gaap:EquityMethodInvestmentNonconsolidatedInvesteeOrGroupOfInvestees


Minority
Period End2020-12-312019-12-31
Value2.1241.486
Percentage of MinorityInterest1.10.8
Percentage of Assets0.00.0
Percentage of Assets us-gaap:EquityMethodInvestmentNonconsolidatedInvesteeOrGroupOfInvestees0.00.0

Lessee Operating Lease Liability Payments Due Year Two

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearTwo

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearTwo


Lessee
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-31
Value6393000.06393000.06756000.06756000.03624000.03624000.01803000.0
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueYearTwo100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.10.10.10.10.10.10.0

Lessee Operating Lease Liability Payments Due Year Three

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearThree

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearThree


Lessee
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-31
Value6309000.06309000.06393000.06393000.06561000.06561000.01098000.0
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueYearThree100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.10.10.10.10.10.10.0

Lessee Operating Lease Liability Payments Due Year Four

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFour

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFour


Lessee
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-31
Value6297000.06297000.06309000.06309000.06190000.06190000.0728000.0
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueYearFour100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.10.10.10.10.10.10.0

Lessee Operating Lease Liability Payments Due Year Five

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFive

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFive


Lessee
Period End2020-12-312020-06-302020-03-312019-12-31
Value6297000.06080000.06080000.0617000.0
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueYearFive100.0100.0100.0100.0
Percentage of Assets0.10.10.10.0

Lessee Operating Lease Liability Payments Due After Year Five

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive


Lessee
Period End2020-12-312020-06-302020-03-312019-12-31
Value496000.06576000.06576000.01447000.0
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive100.0100.0100.0100.0
Percentage of Assets0.00.10.10.0

Operating Lease Liability

us-gaap:OperatingLeaseLiability

us-gaap:OperatingLeaseLiability


Operating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value48495051515234272830
Percentage of OperatingLeaseLiability100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets1.01.01.01.01.11.00.70.50.60.6

Lessee Operating Lease Liability Payments Due

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDue

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDue


Lessee
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-31
Value2829303131329.86
Percentage of LesseeOperatingLeaseLiabilityPaymentsDue100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.60.60.60.60.60.60.2

Lessee Operating Lease Liability Undiscounted Excess Amount

us-gaap:LesseeOperatingLeaseLiabilityUndiscountedExcessAmount

us-gaap:LesseeOperatingLeaseLiabilityUndiscountedExcessAmount


Lessee
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-31
Value3128000.03448000.03771000.04103000.04427000.04654000.01057000.0
Percentage of LesseeOperatingLeaseLiabilityUndiscountedExcessAmount100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.10.10.10.10.10.10.0

Stockholders Equity

us-gaap:StockholdersEquity

us-gaap:StockholdersEquity


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-31
Value8118538709009219681040110411238108621001102398187988811699911016102598598010591102113711691197121011861205124313221354138312381325139914621528155716931648
Percentage of StockholdersEquity100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets17.017.817.918.418.918.520.519.823.617.317.219.719.122.118.615.323.818.721.119.618.917.818.819.520.120.721.922.121.722.022.022.922.822.820.119.119.519.320.320.120.418.0

us-gaap:StockholdersEquity us-gaap:EquityMethodInvestmentNonconsolidatedInvestee

us-gaap:EquityMethodInvestmentNonconsolidatedInvesteeOrGroupOfInvestees


Stockholders
Period End2020-12-312019-12-31
Value20821734
Percentage of StockholdersEquity239.1166.7
Percentage of Assets42.834.1
Percentage of Assets us-gaap:EquityMethodInvestmentNonconsolidatedInvesteeOrGroupOfInvestees46.047.5

us-gaap:StockholdersEquity us-gaap:StatementScenario, us-gaap:AdjustmentsForNewAccountingPronouncements

srt:ScenarioForecast, star:AccountingStandardsUpdate202006


Stockholders
Period End2021-01-01
Value-10.0
Percentage of StockholdersEquity0.0
Percentage of Assets0.0
Percentage of Assets srt:ScenarioForecast star:AccountingStandardsUpdate2020060.0

Stockholders Equity Including Portion Attributable To Noncontrolling Interest

us-gaap:StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest

us-gaap:StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-312009-12-312008-12-31
Value100810511064109311131160123713001321100910641192121210159149231205103410591071103110151101114811831219124812621242126213011385141914521313140014701506157316041742169416562446
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets21.221.921.922.422.822.224.323.327.721.621.223.522.622.819.315.924.519.522.020.519.818.519.620.320.921.622.923.022.723.023.124.023.923.921.320.220.519.920.920.721.018.512.90.0

us-gaap:StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest us-gaap:CumulativeEffectPeriodOfAdoption

srt:CumulativeEffectPeriodOfAdoptionAdjustment


Stockholders
Period End2020-12-312019-12-312017-12-31
Value-10.019-12.38275
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest-0.9-1.08.3
Percentage of Assets-0.2-0.21.6
Percentage of Assets srt:CumulativeEffectPeriodOfAdoptionAdjustment0.00.00.0

us-gaap:StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest us-gaap:CumulativeEffectPeriodOfAdoption, us-gaap:AdjustmentsForNewAccountingPronouncements

srt:CumulativeEffectPeriodOfAdoptionAdjustment, star:AccountingStandardsUpdate202006


Stockholders
Period End2021-01-01
Value10.0
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest0.0
Percentage of Assets0.0
Percentage of Assets srt:CumulativeEffectPeriodOfAdoptionAdjustment star:AccountingStandardsUpdate2020060.0

us-gaap:StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest us-gaap:CumulativeEffectPeriodOfAdoption, us-gaap:StatementEquityComponents

srt:CumulativeEffectPeriodOfAdoptionAdjustment, us-gaap:AdditionalPaidInCapital


Stockholders
Period End2020-12-31
Value-25.869
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest-2.4
Percentage of Assets-0.5
Percentage of Assets srt:CumulativeEffectPeriodOfAdoptionAdjustment us-gaap:AdditionalPaidInCapital0.0

srt:CumulativeEffectPeriodOfAdoptionAdjustment, us-gaap:RetainedEarnings


Stockholders
Period End2020-12-312019-12-312017-12-31
Value15-12.38275
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest1.5-1.08.3
Percentage of Assets0.3-0.21.6
Percentage of Assets srt:CumulativeEffectPeriodOfAdoptionAdjustment us-gaap:RetainedEarnings0.00.00.0

us-gaap:StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest us-gaap:StatementEquityComponents

us-gaap:AccumulatedGainLossNetCashFlowHedgeParent


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302018-12-31
Value-40.043-41.254-53.075-56.863-58.777-58.282-37.264-39.285-13.546
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest-4.0-3.9-5.0-5.2-5.3-5.0-3.0-3.0-1.3
Percentage of Assets-0.8-0.9-1.1-1.2-1.2-1.1-0.7-0.7-0.3
Percentage of Assets us-gaap:AccumulatedGainLossNetCashFlowHedgeParent0.00.00.00.00.00.00.00.00.0

us-gaap:AccumulatedNetUnrealizedInvestmentGainLoss


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302018-12-312016-12-312015-12-31
Value4.223.5634.5943.9513.9312.9592.7562.9620.4750.149-0.125
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest0.40.30.40.40.40.30.20.20.00.0-0.0
Percentage of Assets0.10.10.10.10.10.10.10.10.00.0-0.0
Percentage of Assets us-gaap:AccumulatedNetUnrealizedInvestmentGainLoss0.00.00.00.00.00.00.00.00.00.00.0

us-gaap:AccumulatedOtherComprehensiveIncome


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-312009-12-312008-12-31
Value-35.824-41.858-52.68-57.111-59.045-59.522-38.707-40.522-34.137-29.594-17.270.392-2.233-0.925-2.482-3.83-3.678-3.974-4.218-5.43-5.34-5.577-4.851-5.313-4.706-5.116-0.971-3.349-3.747-5.672-4.276-4.145-2.366-1.464-1.185-2.012-0.707-1.138-0.3281.5083.021.6096.1451.707
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest-3.6-4.0-4.9-5.2-5.3-5.1-3.1-3.1-2.6-2.9-1.60.0-0.2-0.1-0.3-0.4-0.3-0.4-0.4-0.5-0.5-0.5-0.4-0.5-0.4-0.4-0.1-0.3-0.3-0.4-0.3-0.3-0.2-0.1-0.1-0.1-0.0-0.1-0.00.10.20.10.40.1
Percentage of Assets-0.8-0.9-1.1-1.2-1.2-1.1-0.8-0.7-0.7-0.6-0.30.0-0.0-0.0-0.1-0.1-0.1-0.1-0.1-0.1-0.1-0.1-0.1-0.1-0.1-0.1-0.0-0.1-0.1-0.1-0.1-0.1-0.0-0.0-0.0-0.0-0.0-0.0-0.00.00.00.00.00.0
Percentage of Assets us-gaap:AccumulatedOtherComprehensiveIncome0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:AccumulatedTranslationAdjustment


Stockholders
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302018-12-312016-12-312015-12-31
Value-4.167-4.199-4.199-4.199-4.199-4.199-4.199-4.199-4.394-4.036
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest-0.4-0.4-0.4-0.4-0.4-0.3-0.3-0.4-0.4-0.4
Percentage of Assets-0.1-0.1-0.1-0.1-0.1-0.1-0.1-0.1-0.1-0.1
Percentage of Assets us-gaap:AccumulatedTranslationAdjustment0.00.00.00.00.00.00.00.00.00.0

us-gaap:AdditionalPaidInCapital


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-312009-12-312008-12-31
Value31853204324032473260327532843297329733353352335133503350335233573603360336023592359936323689402340074007400740094009401340224020401940193832382938283825383438253818380937913768
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest315.8304.9304.5297.0292.7282.3265.3253.6249.6330.4315.0281.1276.3329.8366.7363.4299.0348.3339.9335.3349.0357.7335.0350.5338.5328.6321.0317.7322.6318.0309.0290.3283.2276.8291.9273.4260.3253.9243.7238.4219.2224.8229.0154.0
Percentage of Assets66.866.966.766.466.862.764.659.169.271.466.966.062.575.370.957.973.368.174.668.669.166.165.671.370.670.973.473.273.373.171.369.667.666.162.355.253.350.451.049.346.141.529.60.0
Percentage of Assets us-gaap:AdditionalPaidInCapital0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:CommonStock


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-312009-12-312008-12-31
Value0.0720.0730.0740.0740.0760.0770.0780.0620.0620.0660.0680.0680.0680.0680.0680.0680.0720.0720.0720.0710.0720.0750.0810.1470.1460.1460.1460.1460.1460.1450.1440.1440.1440.1440.1430.1420.1420.1420.140.1390.1390.1380.1380.137
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of Assets us-gaap:CommonStock0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:NoncontrollingInterest


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-312009-12-312008-12-31
Value19719719319219119119719619719920119018934343536434346453542454650515155565862646874757144454648465027
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest19.518.818.217.617.216.516.015.115.019.718.916.015.63.43.83.93.04.24.14.34.43.53.84.03.94.14.14.14.54.54.54.54.54.85.75.44.93.02.92.92.82.73.01.1
Percentage of Assets4.14.14.03.93.93.73.93.54.14.34.03.83.50.80.70.60.70.80.90.90.90.60.80.80.80.90.90.91.01.01.01.11.11.11.21.11.00.60.60.60.60.50.40.0
Percentage of Assets us-gaap:NoncontrollingInterest0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:PreferredStock


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-312009-12-312008-12-31
Value0.0120.0120.0120.0120.0120.0120.0120.0120.0120.0120.0120.0120.0120.0120.0120.0120.0220.0220.0220.0220.0220.0220.0220.0220.0220.0220.0220.0220.0220.0220.0220.0220.0220.0220.0220.0220.0220.0220.0220.0220.0220.0220.0220.022
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of Assets us-gaap:PreferredStock0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:RetainedEarnings


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-312009-12-312008-12-31
Value-2338.454-2309.763-2316.972-2289.668-2279.284-2247.504-2205.838-2153.245-2139.611-2495.836-2472.061-2350.438-2325.291-2368.162-2470.564-2465.654-2431.123-2608.59-2581.488-2562.237-2608.53-2646.661-2625.474-2633.164-2611.747-2579.771-2556.469-2542.755-2565.828-2549.079-2521.618-2461.749-2430.158-2403.291-2360.647-2270.258-2196.038-2135.05-2078.397-2041.975-1977.733-2014.013-2051.376-1240.28
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest-231.8-219.8-217.7-209.4-204.6-193.7-178.2-165.6-161.9-247.2-232.3-197.2-191.8-233.1-270.2-266.9-201.7-252.2-243.6-239.1-252.9-260.7-238.4-229.3-220.6-211.5-204.8-201.4-206.5-202.0-193.8-177.7-171.2-165.5-179.8-162.1-149.3-141.7-132.1-127.2-113.5-118.8-123.9-50.7
Percentage of Assets-49.0-48.2-47.7-46.8-46.7-43.0-43.4-38.6-44.9-53.4-49.3-46.3-43.4-53.2-52.2-42.5-49.5-49.3-53.5-48.9-50.1-48.2-46.7-46.7-46.0-45.6-46.8-46.4-46.9-46.5-44.7-42.6-40.9-39.5-38.4-32.7-30.6-28.1-27.6-26.3-23.9-22.0-16.00.0
Percentage of Assets us-gaap:RetainedEarnings0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Common Stock Value

us-gaap:CommonStockValue

us-gaap:CommonStockValue


Common
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-31
Value72000.073000.074000.074000.076000.077000.078000.062000.062000.066000.068000.068000.068000.068000.068000.068000.072000.072000.072000.071000.072000.075000.081000.0147000.0146000.0146000.0146000.0146000.0146000.0145000.0144000.0144000.0144000.0144000.0143000.0142000.0142000.0142000.0140000.0139000.0139000.0138000.0
Percentage of CommonStockValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Additional Paid In Capital

us-gaap:AdditionalPaidInCapital

us-gaap:AdditionalPaidInCapital


Additional
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-31
Value318532043240324732603275328432973297333533523351335033503352335736033603360235923599363236894023400740074007400940094013402240204019401938323829382838253834382538183809
Percentage of AdditionalPaidInCapital100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets66.866.966.766.466.862.764.659.169.271.466.966.062.575.370.957.973.368.174.668.669.166.165.671.370.670.973.473.273.373.171.369.667.666.162.355.253.350.451.049.346.141.5

us-gaap:AdditionalPaidInCapital us-gaap:CumulativeEffectPeriodOfAdoption, us-gaap:AdjustmentsForNewAccountingPronouncements

srt:CumulativeEffectPeriodOfAdoptionAdjustment, star:AccountingStandardsUpdate202006


Additional
Period End2021-01-01
Value-25.9
Percentage of AdditionalPaidInCapital0.0
Percentage of Assets0.0
Percentage of Assets srt:CumulativeEffectPeriodOfAdoptionAdjustment star:AccountingStandardsUpdate2020060.0

Retained Earnings Accumulated Deficit

us-gaap:RetainedEarningsAccumulatedDeficit

us-gaap:RetainedEarningsAccumulatedDeficit


Retained
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-31
Value-2338.454-2309.763-2316.972-2289.668-2279.284-2247.504-2205.838-2153.245-2139.611-2495.836-2472.061-2350.438-2325.291-2368.162-2470.564-2465.654-2431.123-2608.59-2581.488-2562.237-2608.53-2646.661-2625.474-2633.164-2611.747-2579.771-2556.469-2542.755-2565.828-2549.079-2521.618-2461.749-2430.158-2403.291-2360.647-2270.258-2196.038-2135.05-2078.397-2041.975-1977.733-2014.013
Percentage of RetainedEarningsAccumulatedDeficit100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets-49.0-48.2-47.7-46.8-46.7-43.0-43.4-38.6-44.9-53.4-49.3-46.3-43.4-53.2-52.2-42.5-49.5-49.3-53.5-48.9-50.1-48.2-46.7-46.7-46.0-45.6-46.8-46.4-46.9-46.5-44.7-42.6-40.9-39.5-38.4-32.7-30.6-28.1-27.6-26.3-23.9-22.0

us-gaap:RetainedEarningsAccumulatedDeficit us-gaap:CumulativeEffectPeriodOfAdoption, us-gaap:AdjustmentsForNewAccountingPronouncements

srt:CumulativeEffectPeriodOfAdoptionAdjustment, star:AccountingStandardsUpdate202006


Retained
Period End2021-01-01
Value15
Percentage of RetainedEarningsAccumulatedDeficit0.0
Percentage of Assets0.0
Percentage of Assets srt:CumulativeEffectPeriodOfAdoptionAdjustment star:AccountingStandardsUpdate2020060.0

Accumulated Other Comprehensive Income Loss Net Of Tax

us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax

us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax


Accumulated
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-31
Value-35824000.0-41858000.0-52680000.0-57111000.0-59045000.0-59522000.0-38707000.0-40522000.0-34137000.0-29594000.0-17270000.0392000.0-2233000.0-925000.0-2482000.0-3830000.0-3678000.0-3974000.0-4218000.0-5430000.0-5340000.0-5577000.0-4851000.0-5313000.0-4706000.0-5116000.0-971000.0-3349000.0-3747000.0-5672000.0-4276000.0-4145000.0-2366000.0-1464000.0-1185000.0-2012000.0-707000.0-1138000.0-328000.01508000.03020000.01609000.0
Percentage of AccumulatedOtherComprehensiveIncomeLossNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets-0.8-0.9-1.1-1.2-1.2-1.1-0.8-0.7-0.7-0.6-0.30.0-0.0-0.0-0.1-0.1-0.1-0.1-0.1-0.1-0.1-0.1-0.1-0.1-0.1-0.1-0.0-0.1-0.1-0.1-0.1-0.1-0.0-0.0-0.0-0.0-0.0-0.0-0.00.00.00.0

Minority Interest

us-gaap:MinorityInterest

us-gaap:MinorityInterest


Minority
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-31
Value1971971931921911911971961971992011901893434353643434645354245465051515556586264687475714445464846
Percentage of MinorityInterest100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets4.14.14.03.93.93.73.93.54.14.34.03.83.50.80.70.60.70.80.90.90.90.60.80.80.80.90.90.91.01.01.01.11.11.11.21.11.00.60.60.60.60.5

us-gaap:MinorityInterest us-gaap:EquityMethodInvestmentNonconsolidatedInvestee

us-gaap:EquityMethodInvestmentNonconsolidatedInvesteeOrGroupOfInvestees


Minority
Period End2020-12-312019-12-31
Value2.1241.486
Percentage of MinorityInterest1.10.8
Percentage of Assets0.00.0
Percentage of Assets us-gaap:EquityMethodInvestmentNonconsolidatedInvesteeOrGroupOfInvestees0.00.0

Minority Interest Decrease From Distributions To Noncontrolling Interest Holders

us-gaap:MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders

us-gaap:MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders


Minority
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-312017-09-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-30
Value4.5912.1454.1923.8023.4473.7244.0723.3154.3553.2552.932.826431.3220.1297.2923.8460.4944.6330.0040.0330.3081.8842.5956.2563.4463.781162.330.0680.0890.5170.4690.619
Percentage of MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders us-gaap:StatementEquityComponents

us-gaap:AdditionalPaidInCapital


Minority
Period End2021-06-302016-03-312012-09-30
Value0.3350.00.0
Percentage of MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders7.30.00.0
Percentage of Assets0.00.00.0
Percentage of Assets us-gaap:AdditionalPaidInCapital0.00.00.0

us-gaap:NoncontrollingInterest


Minority
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-312017-09-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-30
Value4.2562.1454.1923.8023.4473.7244.0723.3154.3553.2552.932.826431.3220.1297.2923.8460.4944.6330.0040.0330.3081.8842.5956.2563.4463.781162.330.0680.0890.5170.4690.619
Percentage of MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders92.7100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of Assets us-gaap:NoncontrollingInterest0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Net Cash Provided By Used In Operating Activities

us-gaap:NetCashProvidedByUsedInOperatingActivities

us-gaap:NetCashProvidedByUsedInOperatingActivities


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-30
Value-41.167-3.795283.61411-20.99730-36.2927.029-46.53312-15.48125-46.566-6.595-16.109140-37.49135-14.71215-16.827-23.19-11.42-52.354-11.91285-22.799-60.678-30.17-43.759-22.845-83.691-99.399-27.377-21.426-35.77-19.3519-31.326-0.624-56.24918
Percentage of NetCashProvidedByUsedInOperatingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues-39.0-3.419.23.111.6-12.123.4-25.07.1-43.68.9-12.714.8-12.8-6.4-13.440.4-33.033.5-11.412.4-14.715.7-19.2-10.5-46.4-10.874.9-17.6-55.8-29.8-45.7-22.8-88.5-106.1-31.7-22.2-37.8-20.120.0-24.2-0.6-41.313.9

Net Cash Provided By Used In Investing Activities

us-gaap:NetCashProvidedByUsedInInvestingActivities

us-gaap:NetCashProvidedByUsedInInvestingActivities


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-30
Value46137362234-62.761-156.839-117.26989-213.23219912440126-176.93410021613011586277-13.113998713-16.054-135.9922372731-48.866233397311757295514-307.926317302681170607709
Percentage of NetCashProvidedByUsedInInvestingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues43.9121.525.219.835.6-36.2-121.7-80.790.6-199.7142.410.4256.734.6-171.583.562.1114.6107.867.5218.8-11.457.772.312.5-14.2-123.7208.921.128.8-48.3243.8395.9329.5808.5342.4531.5-325.2329.2310.4526.1154.1446.9532.1

Net Cash Provided By Used In Financing Activities

us-gaap:NetCashProvidedByUsedInFinancingActivities

us-gaap:NetCashProvidedByUsedInFinancingActivities


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-30
Value-44.687-36.414-50.602-17.386-336.469149-499.971738-65.826-350.973-29.936-271.887214-370.174-1071.184874-299.727476-369.721-45.963-363.196-90.031-72.047-44.2459.074221-32.823-25.866-57.659-74.61-142.848-170.3-126.874-15.736-686.571-227.092-375.663113-158.448-493.622-579.548-356.065-1166.416-139.68
Percentage of NetCashProvidedByUsedInFinancingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues-42.3-32.2-34.7-15.1-349.086.2-387.9507.9-66.9-328.6-21.4-222.6124.8-101.6-1038.5729.2-86.2419.2-346.1-35.7-286.2-78.5-41.9-36.78.3196.4-29.9-22.8-44.4-68.6-141.3-177.8-126.5-16.6-732.6-263.3-388.4120.1-164.2-507.0-447.5-322.2-857.4-104.8

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

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect


Cash
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value-39.51197149.011-290.93965-626.61258430-610.73182-274.632679-290.589-1256.40595653569
Percentage of CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues-37.485.910.07.8-301.837.9-486.2402.230.9-571.8130.0-224.8396.2-79.8-1218.1797.915.5501.2

Depreciation Depletion And Amortization

us-gaap:DepreciationDepletionAndAmortization

us-gaap:DepreciationDepletionAndAmortization


Depreciation
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-30
Value1415141414141414131516191011111113131213141415151518181718181719171719161717161516151515
Percentage of DepreciationDepletionAndAmortization100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Net Cash Provided By Used In Operating Activities

us-gaap:NetCashProvidedByUsedInOperatingActivities

us-gaap:NetCashProvidedByUsedInOperatingActivities


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-30
Value-41.167-3.795283.61411-20.99730-36.2927.029-46.53312-15.48125-46.566-6.595-16.109140-37.49135-14.71215-16.827-23.19-11.42-52.354-11.91285-22.799-60.678-30.17-43.759-22.845-83.691-99.399-27.377-21.426-35.77-19.3519-31.326-0.624-56.24918
Percentage of NetCashProvidedByUsedInOperatingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues-39.0-3.419.23.111.6-12.123.4-25.07.1-43.68.9-12.714.8-12.8-6.4-13.440.4-33.033.5-11.412.4-14.715.7-19.2-10.5-46.4-10.874.9-17.6-55.8-29.8-45.7-22.8-88.5-106.1-31.7-22.2-37.8-20.120.0-24.2-0.6-41.313.9

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-13.6695.469-13.2133.805-17.461-15.576-38.1370.781370-9.441-107.332-10.8650343.214-3.556190-14.272-6.4215950-8.357206.664-19.147-10.472-0.88435-3.919-14.631-47.043-18.757-14.087-32.064-79.81-63.64-50.407-46.073-25.842-53.659-26.03483-67.05-75.49229-25.408
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-12.94.8-9.03.3-18.1-9.0-29.60.5376.6-8.8-76.6-8.929.79.63.1-3.054.7-12.6-6.045.940.2-7.311.95.5-17.5-9.3-0.831.6-3.0-13.5-46.5-19.6-14.0-33.9-85.2-73.8-52.1-48.7-26.8-55.1-20.175.5-49.3-56.6169.4-15.3

us-gaap:NetIncomeLoss us-gaap:EquityMethodInvestmentNonconsolidatedInvestee

star:SafeholdInc.


Net
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-30
Value14161412175.432
Percentage of NetIncomeLoss-107.8309.2372.2-71.7-111.4695.5
Percentage of Revenues14.014.912.313.010.03.7
Percentage of Revenues star:SafeholdInc.33.338.937.333.543.224.3

Profit Loss

us-gaap:ProfitLoss

us-gaap:ProfitLoss


Profit
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value-11.4167.989-10.066.451-14.363-12.885-36.0223.626373-6.97-105.028-8.83260353.29-3.716196-15.372-8.4615859-9.299195.958-19.776-12.313-1.95535-3.594-14.177-45.992-18.59-14.398-32.253-79.948-64.306-51.129-46.048-28.915-54.661-26.0283-58.865-74.632229-16.142
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-10.87.1-6.95.6-14.9-7.4-27.92.5379.5-6.5-74.9-7.235.39.63.2-3.156.3-13.5-7.945.247.1-8.111.64.9-18.1-10.9-1.831.3-2.8-13.0-45.5-19.4-14.4-34.1-85.3-74.6-52.9-48.6-30.0-56.1-20.175.9-43.3-56.0169.8-9.7

us-gaap:ProfitLoss us-gaap:StatementEquityComponents

us-gaap:NoncontrollingInterest


Profit
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value2.2532.523.1532.6463.0982.6912.1152.8452.8522.4712.3042.0289.5090.095
Percentage of ProfitLoss-19.731.5-31.341.0-21.6-20.9-5.978.50.8-35.5-2.2-23.015.70.3
Percentage of Revenues2.12.22.22.33.21.61.62.02.92.31.61.75.50.0
Percentage of Revenues us-gaap:NoncontrollingInterest0.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:RetainedEarnings


Profit
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value-13.6695.469-13.2133.805-17.461-15.576-38.1370.781370-9.441-107.332-10.865034
Percentage of ProfitLoss119.768.5131.359.0121.6120.9105.921.599.2135.5102.2123.084.399.7
Percentage of Revenues-12.94.8-9.03.3-18.1-9.0-29.60.5376.6-8.8-76.6-8.929.79.6
Percentage of Revenues us-gaap:RetainedEarnings0.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Share Based Compensation

us-gaap:ShareBasedCompensation

us-gaap:ShareBasedCompensation


Share
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-30
Value145.508125.6614.744169.7426.749.7054.2491.3183.6523.5029.0916.0822.9343.9155.8813.2451.4331.6344.5771.9472.883.9483.2384.773.2733.1962.0754.7774.5634.7195.2023.6683.5123.4474.666147.1534.3144.1555.7583.883
Percentage of ShareBasedCompensation100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Net Cash Provided By Used In Investing Activities

us-gaap:NetCashProvidedByUsedInInvestingActivities

us-gaap:NetCashProvidedByUsedInInvestingActivities


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-30
Value46137362234-62.761-156.839-117.26989-213.23219912440126-176.93410021613011586277-13.113998713-16.054-135.9922372731-48.866233397311757295514-307.926317302681170607709
Percentage of NetCashProvidedByUsedInInvestingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues43.9121.525.219.835.6-36.2-121.7-80.790.6-199.7142.410.4256.734.6-171.583.562.1114.6107.867.5218.8-11.457.772.312.5-14.2-123.7208.921.128.8-48.3243.8395.9329.5808.5342.4531.5-325.2329.2310.4526.1154.1446.9532.1

Net Cash Provided By Used In Financing Activities

us-gaap:NetCashProvidedByUsedInFinancingActivities

us-gaap:NetCashProvidedByUsedInFinancingActivities


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-30
Value-44.687-36.414-50.602-17.386-336.469149-499.971738-65.826-350.973-29.936-271.887214-370.174-1071.184874-299.727476-369.721-45.963-363.196-90.031-72.047-44.2459.074221-32.823-25.866-57.659-74.61-142.848-170.3-126.874-15.736-686.571-227.092-375.663113-158.448-493.622-579.548-356.065-1166.416-139.68
Percentage of NetCashProvidedByUsedInFinancingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues-42.3-32.2-34.7-15.1-349.086.2-387.9507.9-66.9-328.6-21.4-222.6124.8-101.6-1038.5729.2-86.2419.2-346.1-35.7-286.2-78.5-41.9-36.78.3196.4-29.9-22.8-44.4-68.6-141.3-177.8-126.5-16.6-732.6-263.3-388.4120.1-164.2-507.0-447.5-322.2-857.4-104.8

Payments Of Dividends Common Stock

us-gaap:PaymentsOfDividendsCommonStock

us-gaap:PaymentsOfDividendsCommonStock


Payments
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-31
Value9.0888.2168.2678.2498.3517.7976.2956.1996.4656.16.1246.1030.00.00.0
Percentage of PaymentsOfDividendsCommonStock100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.00.0

Payments For Repurchase Of Common Stock

us-gaap:PaymentsForRepurchaseOfCommonStock

us-gaap:PaymentsForRepurchaseOfCommonStock


Payments
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-31
Value21107.2931315189.5021.41942150.00.00.08.3040.0450.00.00.08.854315850180.0030.5580.0
Percentage of PaymentsForRepurchaseOfCommonStock100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.00.0100.00.0100.00.00.00.0100.0100.0100.0100.0100.0100.0100.00.0

Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Grants In Period

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod us-gaap:AwardType

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod

us-gaap:RestrictedStockUnitsRSU


Share
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value4000.0327000.0000181000.04000.07000.00474000.0014000.00264000.0
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod100.0100.00.00.00.0100.0100.0100.00.0100.00.0100.00.0100.0

Deferred Tax Assets Valuation Allowance

us-gaap:DeferredTaxAssetsValuationAllowance dei:LegalEntity

us-gaap:DeferredTaxAssetsValuationAllowance

star:TaxableReitSubsidiaries


Deferred
Period End2020-12-312019-12-312018-12-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312012-12-31
Value807978639082706661525353646457545255565540
Percentage of DeferredTaxAssetsValuationAllowance100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

star:AmortizationOfDiscountsOrPremiumsDeferredInterestAndCostsOnLendingInvestments

star:AmortizationOfDiscountsOrPremiumsDeferredInterestAndCostsOnLendingInvestments


Amortization
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-31
Value4.083.3796.3787.3838.5738.4049.20610129.85312109.429.067-31.86613222121201914141712109.498106.853
Percentage of AmortizationOfDiscountsOrPremiumsDeferredInterestAndCostsOnLendingInvestments100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

star:AmortizationofAboveMarketLeaseandLeaseIncentiveAsset

star:AmortizationofAboveMarketLeaseandLeaseIncentiveAsset


Amortizationof
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-09-302014-06-30
Value300000.0300000.0300000.0300000.0400000.0400000.0500000.0600000.0900000.0400000.0400000.0500000.0800000.0900000.0900000.01200000.01200000.01800000.01400000.02300000.01600000.01600000.0
Percentage of AmortizationofAboveMarketLeaseandLeaseIncentiveAsset100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

star:CommonStockAcquiredAverageCostPerShare

star:CommonStockAcquiredAverageCostPerShare


Common
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-31
Value0.3717.20.160.34-1.5312.510.720.020.968.460010.2211.510-0.04-0.239.940.09-0.5012.66
Percentage of CommonStockAcquiredAverageCostPerShare100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.0100.0100.00.0100.0100.0100.0100.0100.00.0100.0

star:CommonStockValueAcquiredIncludingAcquisitionCosts

star:CommonStockValueAcquiredIncludingAcquisitionCosts


Common
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-31
Value20127.0131512150.539190.00.08.30.06.6335850190.00.6
Percentage of CommonStockValueAcquiredIncludingAcquisitionCosts100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.0100.00.0100.0100.0100.0100.0100.00.0100.0

star:CreditLossExpenseReversal

star:CreditLossExpenseReversal


Credit
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-31
Value-1923000.0-4112000.05612000.0-2165000.02348000.03901000.0
Percentage of CreditLossExpenseReversal100.0100.0100.0100.0100.0100.0

star:DeferredInterestonLoans

star:DeferredInterestonLoans


Deferred
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312016-12-312016-09-302015-12-312015-09-30
Value0.0236.6428.6330.03.6570.05.851.209211728-10.2639.457-11.075
Percentage of DeferredInterestonLoans0.0100.0100.0100.00.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0

star:FinancingReceivableAndUnfundedCommitmentsCreditLossExpenseReversal

star:FinancingReceivableAndUnfundedCommitmentsCreditLossExpenseReversal


Financing
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-31
Value-2300000.0-3800000.013200000.0-2000000.02300000.0-4000000.0
Percentage of FinancingReceivableAndUnfundedCommitmentsCreditLossExpenseReversal100.0100.0100.0100.0100.0100.0

star:FundingRepaymentsForFinancialAssetsAndLiabilities

star:FundingRepaymentsForFinancialAssetsAndLiabilities


Funding
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-30
Value0.0-42.5010.561.7766.494-2.1123-3.153-4.892-2.502-4.118-3.587701720-15.00175-22.60246-18.763
Percentage of FundingRepaymentsForFinancialAssetsAndLiabilities0.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

star:GainLossFromSaleOfGroundLease us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName

star:GainLossFromSaleOfGroundLease

star:GroundLeaseMultifamilyDevelopmentSanJoseCA


Gain
Period End2020-12-31
Value0
Percentage of GainLossFromSaleOfGroundLease0.0

star:GainLossOnSaleOfPropertiesCashFlowImpact

star:GainLossOnSaleOfPropertiesCashFlowImpact


Gain
Period End2021-06-302021-03-31
Value2210000.0612000.0
Percentage of GainLossOnSaleOfPropertiesCashFlowImpact100.0100.0

star:GeneralAndAdministrativeExpenseExcludingStockBasedCompensationExpense

star:GeneralAndAdministrativeExpenseExcludingStockBasedCompensationExpense


General
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-31
Value15151514141816171716171719191918231918181818161816171420231720191616
Percentage of GeneralAndAdministrativeExpenseExcludingStockBasedCompensationExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

star:GeneralAndAdministrativeExpenseExcludingStockBasedCompensationExpense us-gaap:ConsolidationItems

us-gaap:CorporateNonSegment


General
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-09-30
Value5.215.4474.5764.6934.5225.3074.5024.7024.9364.9454.8334.5245.2985.325.2294.85.3235.3735.0354.7144.9685.2585.49
Percentage of GeneralAndAdministrativeExpenseExcludingStockBasedCompensationExpense33.434.230.433.031.729.527.527.128.029.328.225.226.927.026.926.622.827.927.425.927.628.430.0

star:GeneralAndAdministrativeExpenseExcludingStockBasedCompensationExpense us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments

us-gaap:OperatingSegments, star:LandAndDevelopmentSegment


General
Period End2021-06-302020-06-30
Value2.3672.385
Percentage of GeneralAndAdministrativeExpenseExcludingStockBasedCompensationExpense15.216.7

us-gaap:OperatingSegments, star:LandandDevelopmentSegment


General
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-30
Value2.4282.4662.322.3852.8192.7583.0192.9233.2573.1853.5763.7473.8053.8473.7065.0043.9263.6013.4953.3273.272.7293.233
Percentage of GeneralAndAdministrativeExpenseExcludingStockBasedCompensationExpense15.216.416.316.715.716.917.416.619.318.619.919.019.319.820.621.520.419.619.218.517.716.217.7

us-gaap:OperatingSegments, star:NetLeasing


General
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-31
Value6.125.9375.8965.1615.1776.9896.6916.8876.7345.6785.5345.744.8534.5864.6854.3155.9214.6424.454.5264.3134.2963.9234.2093.6763.7613.1444.615.1833.7993.9774.2823.1583.052
Percentage of GeneralAndAdministrativeExpenseExcludingStockBasedCompensationExpense39.237.339.136.336.338.840.939.638.333.732.232.024.623.324.123.925.424.124.324.823.923.223.323.022.121.522.122.922.121.419.621.719.518.3

us-gaap:OperatingSegments, star:OperatingProperty


General
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-31
Value0.6640.660.6250.5820.5950.7890.6730.7270.7260.7611.1271.4291.9752.0432.091.8662.3641.7551.5641.5021.6381.871.691.8411.6291.8281.7182.6993.0782.1892.0492.7352.1472.231
Percentage of GeneralAndAdministrativeExpenseExcludingStockBasedCompensationExpense4.34.14.14.14.24.44.14.24.14.56.68.010.010.410.710.410.19.18.58.29.110.110.110.19.810.412.113.413.112.410.113.913.313.4

us-gaap:OperatingSegments, star:RealEstateLending


General
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-31
Value1.2421.4591.4991.4511.5752.0971.7312.0352.2792.2092.4832.6933.8523.9693.6023.3344.6913.5963.6993.9953.7863.8313.3783.5273.1293.0942.2883.4924.4443.093.5253.612.8953.074
Percentage of GeneralAndAdministrativeExpenseExcludingStockBasedCompensationExpense8.09.210.010.211.011.610.611.713.013.114.515.019.520.118.518.520.118.620.221.921.020.720.119.318.817.716.117.419.017.417.318.317.918.5

star:IncomeLossFromContinuingOperationsBeforeIncomeLossFromEquityMethodInvestmentsAndOtherItems

star:IncomeLossFromContinuingOperationsBeforeIncomeLossFromEquityMethodInvestmentsAndOtherItems


Income
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-31
Value-23.448-5.445-26.1137.648-16.921-25.322-33.934-3.907189-11.786-17.9-12.558-54.69615-55.713-26.15275-28.875-28.77-11.049-22.877-28.313-10.225-33.951-46.061-33.97-43.543-41.589-21.495-33.175-55.68-46.812-49.591-70.302
Percentage of IncomeLossFromContinuingOperationsBeforeIncomeLossFromEquityMethodInvestmentsAndOtherItems100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

star:IncreaseDecreaseInAccruedInterestAndOperatingLeaseAndIncomeReceivable

star:IncreaseDecreaseInAccruedInterestAndOperatingLeaseAndIncomeReceivable


Increase
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-31
Value-1627000.0-1945000.02663000.0-1281000.01008000.0-79000.01593000.0-314000.0-2650000.0954000.01625000.0-1044000.0-913000.0-617000.01109000.0348000.0-667000.0-2214000.02081000.0-1279000.0-2021000.0-2415000.02902000.0-483000.0-2434000.02083000.02615000.0-583000.0-1410000.0804000.03150000.0303000.0-4790000.0-973000.0
Percentage of IncreaseDecreaseInAccruedInterestAndOperatingLeaseAndIncomeReceivable100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

star:IncreaseDecreaseInOriginationOfLoanReceivableHeldForSale

star:IncreaseDecreaseInOriginationOfLoanReceivableHeldForSale


Increase
Period End2021-06-302021-03-31
Value-46439000.0-16086000.0
Percentage of IncreaseDecreaseInOriginationOfLoanReceivableHeldForSale100.0100.0

star:IssuanceOfStockAndRestrictedStockUnitAmortizationNet

star:IssuanceOfStockAndRestrictedStockUnitAmortizationNet


Issuance
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-31
Value1.3673.9420.9691.7971.7092.9493.7891.6211.6833.0890.6470.8280.55.8890.2740.5490.4621.2370.3560.3040.7670.6040.6410.6490.6173.054-1.7040.637-3.434-8.5881.52.243-0.427-4.691
Percentage of IssuanceOfStockAndRestrictedStockUnitAmortizationNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

star:IssuanceOfStockAndRestrictedStockUnitAmortizationNet us-gaap:StatementEquityComponents

us-gaap:AdditionalPaidInCapital


Issuance
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-31
Value1.1992.5720.0750.9030.862.2222.9560.9440.7562.6610.6470.8280.55.8880.2740.5490.4621.2370.3560.3040.7670.6040.6410.6490.6173.054-1.7040.637-3.435-8.5891.52.243-0.427-4.692
Percentage of IssuanceOfStockAndRestrictedStockUnitAmortizationNet87.765.27.750.350.375.378.058.244.986.1100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:CommonStock


Issuance
Period End2020-12-312020-09-302020-06-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-31
Value0.00.00.0010.00.00.00.00.00.0010.00.00.0010.0010.00.00.00.001
Percentage of IssuanceOfStockAndRestrictedStockUnitAmortizationNet0.00.00.10.00.00.00.00.00.0-0.00.0-0.0-0.00.00.0-0.0-0.0

us-gaap:NoncontrollingInterest


Issuance
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value0.1681.370.8940.8940.8480.7270.8320.6770.9270.428
Percentage of IssuanceOfStockAndRestrictedStockUnitAmortizationNet12.334.892.349.749.624.722.041.855.113.9

star:LandDevelopmentRevenueInExcessOfCostOfSales

star:LandDevelopmentRevenueInExcessOfCostOfSales


Land
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value1.5152.926-14.575-0.856-0.7113.1175.0266.816-0.16-1.758.7450.196-2.434533.129-1.55
Percentage of LandDevelopmentRevenueInExcessOfCostOfSales100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

star:OptionAgreementFutureOfficeSpaceDevelopmentSquareFeet dei:LegalEntity

star:OptionAgreementFutureOfficeSpaceDevelopmentSquareFeet

star:SafeholdInc.


Option
Period End2021-06-30
Value1100000.0
Percentage of OptionAgreementFutureOfficeSpaceDevelopmentSquareFeet100.0

star:OtherComprehensiveIncomeLossIncludingRealizationOfLossesOnCumulativeTranslationAdjustmentNetOfTax

star:OtherComprehensiveIncomeLossIncludingRealizationOfLossesOnCumulativeTranslationAdjustmentNetOfTax


Other
Period End2021-06-30
Value6.546
Percentage of OtherComprehensiveIncomeLossIncludingRealizationOfLossesOnCumulativeTranslationAdjustmentNetOfTax100.0

star:OtherComprehensiveIncomeLossIncludingRealizationOfLossesOnCumulativeTranslationAdjustmentNetOfTax us-gaap:StatementEquityComponents

us-gaap:AccumulatedOtherComprehensiveIncome


Other
Period End2021-06-30
Value6.034
Percentage of OtherComprehensiveIncomeLossIncludingRealizationOfLossesOnCumulativeTranslationAdjustmentNetOfTax92.2

us-gaap:NoncontrollingInterest


Other
Period End2021-06-30
Value0.512
Percentage of OtherComprehensiveIncomeLossIncludingRealizationOfLossesOnCumulativeTranslationAdjustmentNetOfTax7.8

star:PaymentforCapitalExpendituresonLandandDevelopmentAssets

star:PaymentforCapitalExpendituresonLandandDevelopmentAssets


Paymentfor
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-31
Value4.2484.1347.4668.469.993152420353730363030363126271528292923232219
Percentage of PaymentforCapitalExpendituresonLandandDevelopmentAssets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

star:ProceedsFromPrincipalRepaymentsOnPortfolioOfAssets

star:ProceedsFromPrincipalRepaymentsOnPortfolioOfAssets


Proceeds
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-31
Value991095664691839150721571181624381141231241951712614112873341633934572925910277237105193
Percentage of ProceedsFromPrincipalRepaymentsOnPortfolioOfAssets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

star:ProceedsFromSaleOfLandAndDevelopmentAssets

star:ProceedsFromSaleOfLandAndDevelopmentAssets


Proceeds
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value31304719177641556.6411391240130
Percentage of ProceedsFromSaleOfLandAndDevelopmentAssets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

star:ProceedsFromSaleOfNetInvestmentLeaseProperty

star:ProceedsFromSaleOfNetInvestmentLeaseProperty


Proceeds
Period End2021-06-302021-03-31
Value6.256.575
Percentage of ProceedsFromSaleOfNetInvestmentLeaseProperty100.0100.0

star:ProceedsFromSaleOfNetInvestmentLeaseProperty us-gaap:RealEstateProperties

star:NetLeaseAsset


Proceeds
Period End2021-06-302021-03-31
Value0.06.6
Percentage of ProceedsFromSaleOfNetInvestmentLeaseProperty0.0100.4

star:RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisition

star:RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisition


Real
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-31
Value5.0666.064187.15131432313339496747394743393530424650534550323946322838253116
Percentage of RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisition100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

star:RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisition us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments

us-gaap:OperatingSegments, star:LandAndDevelopmentSegment


Real
Period End2021-06-302020-06-30
Value4.5718.026
Percentage of RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisition90.258.9

us-gaap:OperatingSegments, star:LandandDevelopmentSegment


Real
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-30
Value4.7395.2845.178.02612132029363633423135333026172532342718
Percentage of RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisition78.128.872.358.981.340.065.888.791.974.849.688.979.474.077.176.674.857.360.669.567.350.539.4

us-gaap:OperatingSegments, star:NetLeasing


Real
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-31
Value0.0631.268121.8965.1711.846187.8462.1052.75610280.720.4780.7672.3840.9170.7710.2570.9341.6250.8510.6421.4391.7690.3453.7640.5950.2010.504124.322133.766
Percentage of RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisition1.220.970.026.538.012.557.725.16.37.021.741.81.51.21.65.42.32.20.92.23.51.71.23.13.51.19.61.30.61.831.217.244.323.1

us-gaap:OperatingSegments, star:OperatingProperty


Real
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-31
Value0.4320.0570.2150.0840.4210.9170.7392.8161.6460.4161.7265.864.6237.7117.6448.3558.2112151215252621101420131214119.4854.921
Percentage of RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisition8.50.91.21.23.16.22.39.05.01.13.58.69.619.424.417.421.123.141.837.227.031.048.357.542.730.836.143.942.245.838.247.430.330.2

star:RelatedPartyTransactionLoanConsiderationReceived us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName

star:RelatedPartyTransactionLoanConsiderationReceived

star:GroundLeaseConversionSeattleWA


Related
Period End2020-10-31
Value2300000.0
Percentage of RelatedPartyTransactionLoanConsiderationReceived100.0

star:HotelProperty


Related
Period End2021-02-28
Value1900000.0
Percentage of RelatedPartyTransactionLoanConsiderationReceived0.0

star:RevenueAndOtherEarnings

star:RevenueAndOtherEarnings


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-31
Value12012616212799190157156503121186126289384166141477127126189209133206157136140156190171128122124151145
Percentage of RevenueAndOtherEarnings100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

star:RevenueAndOtherEarnings us-gaap:ConsolidationItems

us-gaap:CorporateNonSegment


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-09-30
Value2.1556.2051.21714-1.084111.5542.2681.063.5844.434.589-7.3510.7782.1243.751.6370.7881.6143.8735.72.5573.399
Percentage of RevenueAndOtherEarnings1.84.90.711.2-1.15.91.01.40.22.92.43.6-2.50.21.32.60.30.61.32.02.71.92.2

star:RevenueAndOtherEarnings us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments

us-gaap:OperatingSegments, star:LandAndDevelopmentSegment


Revenue
Period End2021-06-302020-06-30
Value3516
Percentage of RevenueAndOtherEarnings29.217.0

us-gaap:OperatingSegments, star:LandandDevelopmentSegment


Revenue
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-30
Value366425168145561316381383278182826024215431227421
Percentage of RevenueAndOtherEarnings29.139.619.617.042.928.836.32.713.620.910.628.872.510.920.054.519.117.328.615.217.136.013.7

us-gaap:OperatingSegments, star:NetLeasing


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-31
Value68697471647471594596070461253494521564445444241654544414640393939374037
Percentage of RevenueAndOtherEarnings57.054.646.055.664.739.245.638.291.449.538.037.043.39.057.137.132.735.036.023.620.231.331.928.732.829.529.721.422.830.732.529.926.626.0

us-gaap:OperatingSegments, star:OperatingProperty


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-31
Value5.8174.0392.1013.9590.8556.26420188.5818483859432630302826539531294542495363485244567061
Percentage of RevenueAndOtherEarnings4.83.21.33.10.93.312.911.91.715.426.230.120.611.316.221.46.422.620.728.345.423.914.529.131.035.334.033.228.640.836.145.546.642.2

us-gaap:OperatingSegments, star:RealEstateLending


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-31
Value8.592102013181618192022232328272426292931333434334134342931542829252926
Percentage of RevenueAndOtherEarnings7.18.212.410.518.68.811.812.24.118.612.518.69.87.014.518.96.122.824.717.616.525.916.226.425.324.918.816.831.722.024.420.919.818.4

star:SaleOfNetInvestmentLeasePropertyImpairmentLoss us-gaap:RealEstateProperties

star:SaleOfNetInvestmentLeasePropertyImpairmentLoss

star:NetLeaseAsset


Sale
Period End2021-06-302021-03-31
Value01500000.0
Percentage of SaleOfNetInvestmentLeasePropertyImpairmentLoss0.0100.0

star:SaleOfPropertyAndGroundLeaseRequiredPercentageReturnOnInvestment us-gaap:RelatedPartyTransactionsByRelatedParty

star:SaleOfPropertyAndGroundLeaseRequiredPercentageReturnOnInvestment

srt:AffiliatedEntity


Sale
Period End2021-06-30
Value9.0
Percentage of SaleOfPropertyAndGroundLeaseRequiredPercentageReturnOnInvestment100.0

star:SalesTypeLeaseCashInterestIncome

star:SalesTypeLeaseCashInterestIncome


Sales
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-30
Value0.20.10.11.52.36.96.96.9
Percentage of SalesTypeLeaseCashInterestIncome100.0100.0100.0100.0100.0100.0100.0100.0

star:SalesTypeLeaseInterestIncomeNoncash

star:SalesTypeLeaseInterestIncomeNoncash


Sales
Period End2020-09-302020-06-302020-03-312019-09-302019-06-302019-03-31
Value7.5286.5831.571.5240.7040.0
Percentage of SalesTypeLeaseInterestIncomeNoncash100.0100.0100.0100.0100.00.0

star:SalesTypeLeaseNetInvestmentInLeaseNonCashInterestIncome

star:SalesTypeLeaseNetInvestmentInLeaseNonCashInterestIncome


Sales
Period End2021-06-302021-03-312020-06-302020-03-31
Value-9420000.0-9388000.0-6583000.0-1570000.0
Percentage of SalesTypeLeaseNetInvestmentInLeaseNonCashInterestIncome100.0100.0100.0100.0

star:SalesTypeLeaseNoncashInterestIncome

star:SalesTypeLeaseNoncashInterestIncome


Sales
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-30
Value8.58.58.56.96.01.51.41.40.6
Percentage of SalesTypeLeaseNoncashInterestIncome100.0100.0100.0100.0100.0100.0100.0100.0100.0

star:SegmentProfitLoss

star:SegmentProfitLoss


Segment
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-31
Value162423321229342039817551710258448.3972323.8789.59587911513321194471426.763-5.2891.5622814
Percentage of SegmentProfitLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

star:SegmentProfitLoss us-gaap:ConsolidationItems

us-gaap:CorporateNonSegment


Segment
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-09-30
Value-7.532-3.356-6.9615.952-10.786-0.096-12.085-9.575-19.881-9.957-11.524-11.7-25.122-12.523-17.25-19.416-32.065-15.647-11.518-10.974-11.96-14.631-14.889
Percentage of SegmentProfitLoss-46.6-13.6-29.718.1-89.2-0.3-35.0-45.9-5.0-57.9-20.9-68.7-24.6-21.2-38.7-231.2-13.8-403.5-120.1-18.9-15.0-130.6-44.8

star:SegmentProfitLoss us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments

us-gaap:OperatingSegments, star:LandAndDevelopmentSegment


Segment
Period End2021-06-302020-06-30
Value-6.887-9.929
Percentage of SegmentProfitLoss-42.6-82.1

us-gaap:OperatingSegments, star:LandandDevelopmentSegment


Segment
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-30
Value-3.273-10.99-8.641-9.929-11.562-8.241-6.99-12.253-15.124-13.05-16.139-18.84534-22.003-18.08117-13.067-10.61610-7.323-9.10210-7.898
Percentage of SegmentProfitLoss-13.3-46.9-26.2-82.1-39.8-23.9-33.5-3.1-88.0-23.7-94.7-18.558.4-49.3-215.350.7-337.0-110.717.6-9.2-81.220.6-23.8

us-gaap:OperatingSegments, star:NetLeasing


Segment
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-31
Value3029353228363321423264020103127431132191919161639191815201210119.0318.553118.61
Percentage of SegmentProfitLoss187.3119.7151.499.7234.7126.698.5102.0106.3154.674.4117.5101.120.4167.0375.557.0504.2201.732.721.0148.776.858.086.979.146.016.824.4167.1-170.8547.639.060.7

us-gaap:OperatingSegments, star:OperatingProperty


Segment
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-31
Value-3.133-2.463-7.08-3.34-6.432-4.447106.104-2.9824.01627132914-2.2820.3830.563-0.005-0.1925662.203-0.506149.6071215216.666114.979173118
Percentage of SegmentProfitLoss-19.4-10.0-30.2-10.1-53.2-15.330.429.3-0.723.449.479.928.724.0-5.14.60.2-0.1-2.044.583.919.7-1.044.445.064.434.930.215.8167.3-94.11120.4107.5133.8

us-gaap:OperatingSegments, star:RealEstateLending


Segment
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-31
Value3.4354.236126.144108.38410101011111113101113131312131516152116171514339.3417.5095.9318.1932.405
Percentage of SegmentProfitLoss21.217.255.418.789.828.930.048.22.667.920.866.013.318.626.1166.55.8336.4131.124.019.3143.430.366.277.889.134.819.679.3138.1-142.0379.728.316.9

star:ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfPointsGranted us-gaap:AwardType

star:ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfPointsGranted

star:A20212022PerformanceIncentivePlans


Share
Period End2021-06-302021-03-31
Value0.7594.0
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfPointsGranted100.0100.0

star:ShareBasedCompensationArrangementBySharebasedPaymentAwardNumberOfPointsForfeited us-gaap:AwardType

star:ShareBasedCompensationArrangementBySharebasedPaymentAwardNumberOfPointsForfeited

star:A20132014PerformanceIncentivePlan


Share
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value0001.03.001.60
Percentage of ShareBasedCompensationArrangementBySharebasedPaymentAwardNumberOfPointsForfeited0.00.00.0100.0100.00.0100.00.0

star:A20152016PerformancePlan


Share
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value01.7501.133.401.910.82
Percentage of ShareBasedCompensationArrangementBySharebasedPaymentAwardNumberOfPointsForfeited0.00.00.0113.0113.30.0119.40.0

star:A20172018PerformanceIncentivePlan


Share
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value03.000.931.4402.691.03
Percentage of ShareBasedCompensationArrangementBySharebasedPaymentAwardNumberOfPointsForfeited0.00.00.093.048.00.0168.10.0

star:A20192020PerformanceIncentivePlans


Share
Period End2021-06-302021-03-31
Value2.00.2
Percentage of ShareBasedCompensationArrangementBySharebasedPaymentAwardNumberOfPointsForfeited0.00.0

star:ShareBasedCompensationExpenseDistributionToPlanParticipants us-gaap:AwardType

star:ShareBasedCompensationExpenseDistributionToPlanParticipants

star:A20152016PerformancePlan


Share
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-31
Value400000.02800000.00001500000.0
Percentage of ShareBasedCompensationExpenseDistributionToPlanParticipants100.0100.00.00.00.0100.0

star:ShareBasedCompensationExpenseEquityComponentCommonStockPerShareAmount us-gaap:AwardType

star:ShareBasedCompensationExpenseEquityComponentCommonStockPerShareAmount

star:A20152016PerformancePlan


Share
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-31
Value-0.0717.7200014.51
Percentage of ShareBasedCompensationExpenseEquityComponentCommonStockPerShareAmount100.0100.00.00.00.0100.0

star:ShareRepurchaseAccrued

star:ShareRepurchaseAccrued


Share
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-06-302019-03-312018-06-302018-03-31
Value1802000.0-299000.0-1000.0250000.0250000.0-2864000.03841000.000
Percentage of ShareRepurchaseAccrued100.0100.0100.0100.0100.0100.0100.00.00.0

star:TenantExpenseReimbursements

star:TenantExpenseReimbursements


Tenant
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value5.17.06.35.85.45.96.44.94.55.46.15.75.05.6
Percentage of TenantExpenseReimbursements100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

star:UnfundedCommitmentsCreditLossExpenseReversal us-gaap:BalanceSheetLocation

star:UnfundedCommitmentsCreditLossExpenseReversal

star:AccountsPayableAccruedExpensesAndOtherLiabilities


Unfunded
Period End2021-06-302020-06-30
Value-400000.0-300000.0
Percentage of UnfundedCommitmentsCreditLossExpenseReversal100.0100.0

star:AccountsPayableAccruedExpensesandOtherLiabilities


Unfunded
Period End2021-03-312020-12-312020-09-302020-06-302020-03-31
Value-300000.0-600000.0-700000.0300000.0-100000.0
Percentage of UnfundedCommitmentsCreditLossExpenseReversal0.00.00.0-100.00.0

us-gaap:AmortizationOfBelowMarketLease

us-gaap:AmortizationOfBelowMarketLease


Amortization
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-31
Value600000.0600000.0600000.0600000.0600000.0600000.0500000.0700000.0600000.0500000.0500000.03100000.0100000.0100000.0100000.0200000.0800000.0300000.0200000.0300000.0300000.0300000.0300000.0500000.0400000.0400000.0400000.0500000.0900000.0700000.0-300000.0900000.01100000.01100000.0
Percentage of AmortizationOfBelowMarketLease100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AmortizationOfDebtDiscountPremium us-gaap:DebtInstrument, us-gaap:LongtermDebtType

us-gaap:AmortizationOfDebtDiscountPremium

star:Unsecured3.125SeniorConvertibleNotesDueSeptember2022, star:UnsecuredDebtNotes


Amortization
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value1.31.31.31.31.31.31.21.21.21.21.21.2
Percentage of AmortizationOfDebtDiscountPremium100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AmortizationOfFinancingCostsAndDiscounts

us-gaap:AmortizationOfFinancingCostsAndDiscounts


Amortization
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-30
Value1.9412.0163.2733.3913.3443.323.2743.5233.4343.6163.7073.8153.9573.9434.0643.1783.1033.5123.8564.0534.34.6014.6074.474.254.0253.9543.9074.3624.6685.2255.2875.4035.05.5758.7278.9818.6988.8568.9389.8114.74-3.027-2.04
Percentage of AmortizationOfFinancingCostsAndDiscounts100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AssetImpairmentCharges

us-gaap:AssetImpairmentCharges


Asset
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
Value0.01.7851.3360.04.7831.7088.4660.01.1023.8511350.9896.0884.1170.595104.4132.7318.7413.0120.04.9343.9161.6740.012153.32.9796.3286.2610.00.0-15.7636.5427.496158.2039.9122.7641.49-0.7223.83212
Percentage of AssetImpairmentCharges0.0100.0100.00.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.00.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AssetImpairmentCharges us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments

us-gaap:OperatingSegments, star:LandandDevelopmentSegment


Asset
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value1.2660.01.4720.05.3270.01.10.0550.01.3
Percentage of AssetImpairmentCharges94.80.030.80.062.90.099.80.040.80.021.4

us-gaap:OperatingSegments, star:NetLeasing


Asset
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value0.01.5280.0010.00.3281.7082.4710.00.00.06.0490.04.342
Percentage of AssetImpairmentCharges0.085.60.10.06.9100.029.20.00.00.04.50.071.3

us-gaap:OperatingSegments, star:OperatingProperty


Asset
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value0.00.2570.0690.02.9830.00.00.00.0023.851740.9890.446
Percentage of AssetImpairmentCharges0.014.45.20.062.40.00.00.00.2100.054.8100.07.3

us-gaap:AssetImpairmentCharges us-gaap:MortgageLoansOnRealEstateDescriptionTypeOfProperty

star:LandAndDevelopmentAsset


Asset
Period End2020-12-312019-12-31
Value1.20.0
Percentage of AssetImpairmentCharges89.80.0

us-gaap:AssetImpairmentCharges us-gaap:RealEstateProperties

star:NetLeaseAsset


Asset
Period End2020-09-302020-06-302020-03-31
Value0.00.01.7
Percentage of AssetImpairmentCharges0.00.099.5

us-gaap:CashFlowHedgeGainLossToBeReclassifiedWithinTwelveMonths

us-gaap:CashFlowHedgeGainLossToBeReclassifiedWithinTwelveMonths


Cash
Period End2021-06-302021-03-312020-12-31
Value300000.0-10100000.0-500000.0
Percentage of CashFlowHedgeGainLossToBeReclassifiedWithinTwelveMonths100.0100.0100.0

us-gaap:DebtInstrumentConvertibleConversionRatio1 us-gaap:DebtInstrument, us-gaap:LongtermDebtType

us-gaap:DebtInstrumentConvertibleConversionRatio1

star:Unsecured3.125SeniorConvertibleNotesDueSeptember2022, star:UnsecuredDebtNotes


Debt
Period End2021-06-302021-03-312020-12-31
Value71.1620.0707160.0005366
Percentage of DebtInstrumentConvertibleConversionRatio1100.0100.0100.0

us-gaap:DebtSecuritiesHeldToMaturityCreditLossExpenseReversal

us-gaap:DebtSecuritiesHeldToMaturityCreditLossExpenseReversal


Debt
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-31
Value-292000.0-408000.03038000.0-56000.058000.033000.0
Percentage of DebtSecuritiesHeldToMaturityCreditLossExpenseReversal100.0100.0100.0100.0100.0100.0

us-gaap:DefinedContributionPlanEmployerDiscretionaryContributionAmount

us-gaap:DefinedContributionPlanEmployerDiscretionaryContributionAmount


Defined
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value100000.0500000.0100000.0200000.0100000.0700000.0100000.0100000.0100000.0600000.0200000.0100000.0100000.0700000.0
Percentage of DefinedContributionPlanEmployerDiscretionaryContributionAmount100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:Depreciation us-gaap:EquityMethodInvestmentNonconsolidatedInvestee

us-gaap:Depreciation

us-gaap:EquityMethodInvestmentNonconsolidatedInvesteeOrGroupOfInvestees


Depreciationus-gaap:
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-30
Value5.55.66.14.64.84.03.73.5
Percentage of Depreciation100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DepreciationAndAmortization

us-gaap:DepreciationAndAmortization


Depreciation
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
Value141514141414141413151619101111111313121314141515151818171818171817171916161716141615141516
Percentage of DepreciationAndAmortization100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DepreciationAndAmortization us-gaap:ConsolidationItems

us-gaap:CorporateNonSegment


Depreciation
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value0.1230.1950.320.310.2990.3030.3040.3030.3020.3030.3060.3050.37
Percentage of DepreciationAndAmortization0.81.32.22.12.12.12.12.12.21.91.81.53.4

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

us-gaap:OperatingSegments, star:LandAndDevelopmentSegment


Depreciation
Period End2021-06-302020-06-30
Value0.2280.243
Percentage of DepreciationAndAmortization1.61.7

us-gaap:OperatingSegments, star:LandandDevelopmentSegment


Depreciation
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value0.2180.2230.2430.2430.2430.2440.2430.2440.2470.2580.2630.318
Percentage of DepreciationAndAmortization1.41.51.71.71.71.71.71.81.61.51.33.0

us-gaap:OperatingSegments, star:NetLeasing


Depreciation
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value1313121212121212121313126.341
Percentage of DepreciationAndAmortization89.384.587.587.487.387.487.687.489.586.679.562.858.9

us-gaap:OperatingSegments, star:OperatingProperty


Depreciation
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value1.2211.9881.2991.2871.2711.2841.2761.2440.91.5572.8956.8573.738
Percentage of DepreciationAndAmortization8.312.98.88.88.98.98.78.86.69.917.234.334.7

us-gaap:DividendsCommonStockCash

us-gaap:DividendsCommonStockCash


Dividends
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value9.1488.2368.2178.3158.4457.8346.3336.2916.496.216.1336.1650.00.0
Percentage of DividendsCommonStockCash100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.0

us-gaap:DividendsCommonStockCash us-gaap:StatementEquityComponents

us-gaap:RetainedEarnings


Dividends
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value9.1488.2368.2178.3158.4457.8346.3336.2916.496.216.1686.165
Percentage of DividendsCommonStockCash100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.6100.0

us-gaap:DividendsPreferredStockCash

us-gaap:DividendsPreferredStockCash


Dividends
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-30
Value5.8745.8745.8745.8745.8745.8748.1238.1248.1248.1248.1238.1248.1248.1248.12412121212121212121212121212121212121210101010101010
Percentage of DividendsPreferredStockCash100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DividendsPreferredStockCash us-gaap:StatementClassOfStock

star:SeriesIPreferredStock


Dividends
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-31
Value2.42.32.32.42.32.32.42.32.32.42.3
Percentage of DividendsPreferredStockCash40.939.239.240.939.228.329.528.328.329.528.3

us-gaap:SeriesGPreferredStock


Dividends
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312012-03-31
Value1.61.51.51.61.51.51.61.51.51.61.51.5
Percentage of DividendsPreferredStockCash27.225.525.527.225.518.519.718.518.519.718.514.2

us-gaap:DividendsPreferredStockCash us-gaap:StatementEquityComponents

us-gaap:RetainedEarnings


Dividends
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-30
Value5.8745.8745.8745.8745.8745.8748.1238.1248.1248.1248.1238.1248.1248.1248.12412121212121212121212121212121212121210101010101010
Percentage of DividendsPreferredStockCash100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents

us-gaap:EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents


Effect
Period 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
Value0-111000.0283000.014000.01000.0-25000.027000.0-15000.0-8000.08000.0-11000.00
Percentage of EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents0.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0

us-gaap:EquityMethodInvestmentDividendsOrDistributions

us-gaap:EquityMethodInvestmentDividendsOrDistributions


Equity
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-30
Value7.595107.686.1465.9915.009148.8175.5061.3897.2584.133.6443.1012.9833.57415203.839135.16226165.6443.8973.9463.397652.3098.634.4272.6144.1026.1092720451139229.237146.4066.426
Percentage of EquityMethodInvestmentDividendsOrDistributions100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:EquityMethodInvestmentRealizedGainLossOnDisposal us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName

us-gaap:EquityMethodInvestmentRealizedGainLossOnDisposal

star:SafeholdInc.


Equity
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-31
Value0.00.56.50.00.07.9
Percentage of EquityMethodInvestmentRealizedGainLossOnDisposal0.0100.0100.00.00.0100.0

us-gaap:EquitySecuritiesFvNiUnrealizedGain

us-gaap:EquitySecuritiesFvNiUnrealizedGain


Equity
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-31
Value0.05.10.0140.09.9
Percentage of EquitySecuritiesFvNiUnrealizedGain0.0100.00.0100.00.0100.0

us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetGainLossIncludedInOtherComprehensiveIncomeLoss

us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetGainLossIncludedInOtherComprehensiveIncomeLoss


Fair
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-31
Value657000.0-1031000.0643000.020000.0972000.0203000.0-206000.0776000.0710000.01000000.0379000.0-558000.015000.0-971000.0737000.0-117000.0583000.0-17000.012000.0-201000.0445000.019000.0
Percentage of FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetGainLossIncludedInOtherComprehensiveIncomeLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetSettlements

us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetSettlements


Fair
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-31
Value1000.0200000.0001000.0459000.00-2000.01000.046000.00010000.036000.000010000.000010000.0
Percentage of FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetSettlements100.0100.00.00.0100.0100.00.0100.0100.0100.00.00.0100.0100.00.00.00.0100.00.00.00.0100.0

us-gaap:FinanceLeaseInterestExpense us-gaap:IncomeStatementLocation

us-gaap:FinanceLeaseInterestExpense

us-gaap:InterestExpense


Finance
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value2100000.02100000.02100000.02000000.02000000.02000000.02100000.01700000.01000000.0400000.0
Percentage of FinanceLeaseInterestExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:FinanceLeasePrincipalPayments

us-gaap:FinanceLeasePrincipalPayments


Finance
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value1400000.01400000.01400000.01400000.01300000.01300000.01300000.01100000.0700000.0200000.0
Percentage of FinanceLeasePrincipalPayments100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:FinanceLeaseRightOfUseAssetAmortization us-gaap:IncomeStatementLocation

us-gaap:FinanceLeaseRightOfUseAssetAmortization

star:DepreciationandAmortization


Finance
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value400000.0400000.0400000.0400000.0400000.0400000.0300000.0200000.0100000.0
Percentage of FinanceLeaseRightOfUseAssetAmortization100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:GainLossOnSaleOfProperties

us-gaap:GainLossOnSaleOfProperties


Gain
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-30
Value2.210.6120.26.0550.0620.03.2173.4762209.407465.409561763190.8448.618163443102726182128271716141434
Percentage of GainLossOnSaleOfProperties100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:GainLossOnSaleOfProperties us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments

us-gaap:OperatingSegments, star:NetLeasing


Gain
Period End2021-06-302020-12-312020-09-302020-06-302019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-31
Value2.1140.06.0550.01.4543.4582190.0200.0240.41462180.06.725.2426.6294.3384.928246.9315.1273.5276.2060.00.00.0
Percentage of GainLossOnSaleOfProperties95.70.0100.00.045.299.599.60.043.20.043.02.498.097.20.078.031.019.210.047.188.126.127.916.721.80.00.00.0

us-gaap:OperatingSegments, star:OperatingProperty


Gain
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-31
Value0.0960.6120.20.00.0621.7630.0180.7819.407265.40932161.2470.5480.8441.8982.86627395.533.29719131722271716
Percentage of GainLossOnSaleOfProperties4.3100.0100.00.0100.054.80.50.4100.056.8100.057.097.62.02.8100.022.016.980.890.052.911.973.972.183.378.2100.0100.0100.0

us-gaap:GainLossOnSaleOfPropertyPlantEquipment

us-gaap:GainLossOnSaleOfPropertyPlantEquipment


Gain
Period End2021-07-31
Value25
Percentage of GainLossOnSaleOfPropertyPlantEquipment100.0

us-gaap:ImpairmentOfLongLivedAssetsToBeDisposedOf

us-gaap:ImpairmentOfLongLivedAssetsToBeDisposedOf


Impairment
Period End2020-12-312020-09-302019-09-30
Value0.10.00.0
Percentage of ImpairmentOfLongLivedAssetsToBeDisposedOf100.00.00.0

us-gaap:ImpairmentOfLongLivedAssetsToBeDisposedOf us-gaap:RealEstateProperties

star:NetLeaseAsset


Impairment
Period End2020-12-312020-09-302020-06-302020-03-31
Value0.00.00.01.7
Percentage of ImpairmentOfLongLivedAssetsToBeDisposedOf0.00.00.00.0

us-gaap:IncomeLossFromEquityMethodInvestments

us-gaap:IncomeLossFromEquityMethodInvestments


Income
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
Value1212166.8052.58616257.6173.645.309-0.426-0.635-7.2783.332-0.6622.4615.5155.7023.09526398.2676.249108.7856.5471849243.1777.1744.3458.323212722183440101924206.52313
Percentage of IncomeLossFromEquityMethodInvestments100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncomeLossFromEquityMethodInvestments us-gaap:ConsolidationItems

us-gaap:CorporateNonSegment


Income
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-09-30
Value2.1010.4910.8780.206-1.321-0.836-0.1680.195-0.2360.2020.1480.652-9.679-0.4940.1930.610.360.2471.0193.3464.7390.8022.485
Percentage of IncomeLossFromEquityMethodInvestments16.53.85.43.0-51.1-5.0-0.72.6-6.53.8-34.7-102.7133.0-14.8-29.224.86.54.332.912.612.09.723.5

us-gaap:IncomeLossFromEquityMethodInvestments us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments

us-gaap:OperatingSegments, star:LandAndDevelopmentSegment


Income
Period End2021-06-302020-06-30
Value1.4740.048
Percentage of IncomeLossFromEquityMethodInvestments11.61.9

us-gaap:OperatingSegments, star:LandandDevelopmentSegment


Income
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-30
Value3.1462.2070.5920.0480.5841.412-0.3012.9240.287-5.8360.1611.0231.545-1.1040.9483.6063.842-1.177212.6886.6612.9646.647
Percentage of IncomeLossFromEquityMethodInvestments24.613.78.71.93.55.6-4.080.35.41370.0-25.4-14.146.4166.838.565.467.4-38.082.36.880.647.462.9

us-gaap:OperatingSegments, star:NetLeasing


Income
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-31
Value111217108.819152.8483.5827.231.4510.7752.6943.5561.7231.3021.080.9810.9540.7230.9440.9460.9510.9711.6661.6331.7630.3490.8620.2860.6820.6790.6520.686
Percentage of IncomeLossFromEquityMethodInvestments89.097.2109.5149.0340.3117.661.637.498.4136.2-340.6-122.0-37.0106.7-260.352.919.617.230.82.72.411.415.29.219.024.99.80.73.69.09.515.67.83.2

us-gaap:OperatingSegments, star:OperatingProperty


Income
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-31
Value-2.935-3.747-4.62-4.134-4.941-2.6678.4644.875-2.63-2.413.811-2.223-1.316-1.275-1.474-0.3990.4690.6322.2990.6331-0.1420.3610.4690.2980.5350.5440.1770.7310.2170.540.5331.8162.657
Percentage of IncomeLossFromEquityMethodInvestments-23.1-29.3-28.7-60.7-191.1-16.133.564.0-72.3-45.4-894.6350.118.1-38.3222.7-16.28.511.174.32.478.8-1.75.84.43.48.23.00.43.06.87.512.321.812.3

us-gaap:OperatingSegments, star:RealEstateLending


Income
Period End2021-06-302021-03-312020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-31
Value0.7550.4660.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of IncomeLossFromEquityMethodInvestments5.93.60.00.00.00.00.00.0-0.0-0.0-0.00.0-0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:IncomeLossFromEquityMethodInvestments us-gaap:EquityMethodInvestmentNonconsolidatedInvestee

us-gaap:EquityMethodInvestmentNonconsolidatedInvesteeOrGroupOfInvestees


Income
Period End2021-06-302021-03-312020-06-302020-03-31
Value12122.58616
Percentage of IncomeLossFromEquityMethodInvestments100.0100.0100.0100.0

us-gaap:IncomeLossFromEquityMethodInvestments us-gaap:EquityMethodInvestmentNonconsolidatedInvestee, us-gaap:InvestmentType

us-gaap:EquityMethodInvestmentNonconsolidatedInvesteeOrGroupOfInvestees, us-gaap:RealEstateInvestment


Income
Period End2021-06-302021-03-312020-06-302020-03-31
Value9.841113.90717
Percentage of IncomeLossFromEquityMethodInvestments77.592.5151.1105.0

us-gaap:IncomeLossFromEquityMethodInvestments us-gaap:InvestmentType

us-gaap:RealEstateInvestment


Income
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-30
Value6.63.90717257.4223.8755.107-0.574-1.2872.4013.826-0.8561.8515.1555.4552.05923347.4654.2068.082
Percentage of IncomeLossFromEquityMethodInvestments97.0151.1105.0100.797.4106.596.2134.7202.7-33.0114.8129.375.293.595.766.587.488.090.367.376.4

us-gaap:IncomeLossFromEquityMethodInvestments us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome, us-gaap:StatementEquityComponents

us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome, us-gaap:AccumulatedGainLossCashFlowHedgeIncludingNoncontrollingInterest


Income
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value0.4570.234-1.9670.3330.3070.226-0.1560.126-0.009-0.144-0.027-0.0430.0810.009
Percentage of IncomeLossFromEquityMethodInvestments3.61.8-12.24.911.91.4-0.61.7-0.2-2.76.36.8-1.10.3

us-gaap:IncomeLossFromEquityMethodInvestments us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName

star:OtherStrategicInvestments


Income
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-30
Value0.205-1.321-0.837-0.1680.195-0.2350.2020.1480.652-9.679-0.4940.1940.610.360.2471.0363.3464.7230.8022.0432.49
Percentage of IncomeLossFromEquityMethodInvestments3.0-51.1-5.0-0.72.6-6.53.8-34.7-102.7133.0-14.8-29.324.86.54.333.512.612.09.732.723.6

us-gaap:IncomeLossFromEquityMethodInvestments us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName, us-gaap:EquityMethodInvestmentNonconsolidatedInvestee

star:OtherStrategicInvestments, us-gaap:EquityMethodInvestmentNonconsolidatedInvesteeOrGroupOfInvestees


Income
Period End2021-06-302021-03-312020-06-302020-03-31
Value2.8560.958-1.321-0.837
Percentage of IncomeLossFromEquityMethodInvestments22.57.5-51.1-5.0

us-gaap:IncomeLossFromEquityMethodInvestments us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName, us-gaap:EquityMethodInvestmentNonconsolidatedInvestee, us-gaap:InvestmentType

star:IStarNetLeaseIILLC, us-gaap:EquityMethodInvestmentNonconsolidatedInvesteeOrGroupOfInvestees, us-gaap:RealEstateInvestment


Income
Period End2021-06-302021-03-312020-06-302020-03-31
Value1.5991.0010.5640.193
Percentage of IncomeLossFromEquityMethodInvestments12.67.821.81.2

star:OtherRealEstateEquityInvestments, us-gaap:EquityMethodInvestmentNonconsolidatedInvesteeOrGroupOfInvestees, us-gaap:RealEstateInvestment


Income
Period End2021-06-302021-03-312020-06-302020-03-31
Value-1.461-0.602-4.893-2.082
Percentage of IncomeLossFromEquityMethodInvestments-11.5-4.7-189.2-12.5

star:SafeholdInc., us-gaap:EquityMethodInvestmentNonconsolidatedInvesteeOrGroupOfInvestees, us-gaap:RealEstateInvestment


Income
Period End2021-06-302021-03-312020-06-302020-03-31
Value9.703118.23619
Percentage of IncomeLossFromEquityMethodInvestments76.489.4318.5116.4

us-gaap:IncomeLossFromEquityMethodInvestments us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName, us-gaap:InvestmentType

star:IStarNetLeaseIILLC, us-gaap:RealEstateInvestment


Income
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value0.8110.5640.193-0.113-0.098-0.232-0.086-0.3330.00.00.0
Percentage of IncomeLossFromEquityMethodInvestments11.921.81.2-0.4-1.3-6.4-1.678.2-0.0-0.00.0

star:OtherRealEstateEquityInvestments, us-gaap:RealEstateInvestment


Income
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value-3.542-4.893-2.0829.8764.5740.293-2.123-2.025-2.062-0.2950.27
Percentage of IncomeLossFromEquityMethodInvestments-52.0-189.2-12.539.160.08.0-40.0475.4324.74.18.1

star:SafeholdInc., us-gaap:RealEstateInvestment


Income
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value9.3318.23619152.9463.8147.3161.7840.7750.681.472
Percentage of IncomeLossFromEquityMethodInvestments137.1318.5116.462.038.7104.8137.8-418.8-122.0-9.344.2

us-gaap:IncreaseDecreaseInAccountsPayableAndAccruedLiabilities

us-gaap:IncreaseDecreaseInAccountsPayableAndAccruedLiabilities


Increase
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-30
Value12-17.4148.7810.5741.106-12.3242.664-16.16210-44.86918-19.74417-45.14413-9.73328-24.987111.2799.971-23.02312-8.4166.48-27.801141619-42.714123.954-6.402-4.125-9.64117-2.075.793-26.925156.00111-48.97731
Percentage of IncreaseDecreaseInAccountsPayableAndAccruedLiabilities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets

us-gaap:IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets


Increase
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-30
Value3.413-1.776-0.7284.387-1.3473.039-2.424.52.2561.512-1.8421.3410.412.0167.5351.45-1.9058.726-7.79715-0.643-1.034-2.5345.196-0.064-5.229-9.5057.9463.376-6.4189.718-17.12212-11.8036.69-8.4444.326-8.86-23.982220.083-4.247.802
Percentage of IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:InterestCostsCapitalized

us-gaap:InterestCostsCapitalized


Interest
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-30
Value0.20.30.30.50.60.50.60.53.53.02.84.02.12.42.42.12.02.01.61.41.41.41.31.31.21.51.61.41.0
Percentage of InterestCostsCapitalized100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:InterestIncomeRelatedParty us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName

us-gaap:InterestIncomeRelatedParty

star:GroundLeaseConversionWashingtonDC


Interest
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value200000.0300000.0300000.0300000.0300000.0300000.0200000.0200000.0
Percentage of InterestIncomeRelatedParty100.0100.0100.0100.0100.0100.0100.0100.0

star:GroundLeaseMultifamilyDevelopmentSanJoseCA


Interest
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value0300000.0900000.0900000.0800000.0700000.0500000.0400000.0200000.0100000.00100000.0100000.0
Percentage of InterestIncomeRelatedParty0.00.0450.0300.0266.7233.3166.7133.3100.050.00.00.00.0

star:HotelProperty


Interest
Period End2021-06-302021-03-31
Value1500000.0900000.0
Percentage of InterestIncomeRelatedParty0.00.0

star:OtherRealEstateEquityInvestmentAug2018


Interest
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value600000.0600000.0600000.0600000.0600000.0700000.0700000.0700000.0700000.0700000.0700000.0400000.0
Percentage of InterestIncomeRelatedParty0.00.0300.0200.0200.0233.3233.3233.3350.0350.00.00.0

us-gaap:NoncontrollingInterestIncreaseFromSubsidiaryEquityIssuance

us-gaap:NoncontrollingInterestIncreaseFromSubsidiaryEquityIssuance


Noncontrolling
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302018-12-312018-09-302018-06-302018-03-312017-12-312016-12-312016-09-302015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302013-12-312013-09-302013-06-302013-03-31
Value0.7940.064-0.2640.4440.1530.1630.5530.02.039131.30.00.0090.00.2770.0690.0780.0120.0630.0520.060.0330.3130.264-1.39211
Percentage of NoncontrollingInterestIncreaseFromSubsidiaryEquityIssuance100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.00.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:NoncontrollingInterestIncreaseFromSubsidiaryEquityIssuance us-gaap:StatementEquityComponents

us-gaap:NoncontrollingInterest


Noncontrolling
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302018-12-312018-09-302018-06-302018-03-312017-12-312016-12-312016-09-302015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302013-12-312013-09-302013-06-302013-03-31
Value0.7940.064-0.2640.4440.1530.1630.5530.02.039131.30.00.0090.00.2770.0690.0780.0120.0630.0520.060.0330.3130.264-1.39211
Percentage of NoncontrollingInterestIncreaseFromSubsidiaryEquityIssuance100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.00.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OperatingLeaseExpense us-gaap:IncomeStatementLocation

us-gaap:OperatingLeaseExpense

star:RealEstateExpense


Operating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value900000.0900000.0900000.0900000.0900000.0800000.0700000.0900000.0600000.01100000.0
Percentage of OperatingLeaseExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:GeneralAndAdministrativeExpense


Operating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value1200000.01200000.01300000.01200000.01200000.01000000.0800000.0900000.0900000.0900000.0
Percentage of OperatingLeaseExpense133.3133.3144.4133.3133.3125.0114.3100.0150.081.8

us-gaap:OperatingLeasePayments

us-gaap:OperatingLeasePayments


Operating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value400000.0800000.01100000.01000000.01100000.01100000.01100000.01000000.01000000.01100000.0
Percentage of OperatingLeasePayments100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAfterTax

us-gaap:OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAfterTax


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value-0.764112.640.197-3.351-27.7762.508-9.091-20.987-15.012-20.9573.90.0072.351
Percentage of OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAfterTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAfterTax us-gaap:DerivativeInstrumentRisk, us-gaap:HedgingDesignation, us-gaap:IncomeStatementLocation

us-gaap:InterestRateSwap, us-gaap:DesignatedAsHedgingInstrument, star:EarningsfromEquityMethodInvestments


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value-0.0018.6562.20.598-0.986-15.172-0.108-6.082-8.036-7.19-6.4411.1971.1572.351
Percentage of OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAfterTax0.172.383.3303.629.454.6-4.366.938.347.930.730.716528.6100.0

us-gaap:InterestRateSwap, us-gaap:DesignatedAsHedgingInstrument, us-gaap:InterestExpense


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value-0.7633.3170.44-0.401-2.365-12.6042.616-3.009-12.951-7.822-14.5152.702-1.15
Percentage of OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAfterTax99.927.716.7-203.670.645.4104.333.161.752.169.369.3-16428.6

us-gaap:OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationAfterTax

us-gaap:OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationAfterTax


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value-2486000.0-2338000.0-2283000.0-2371000.0-2106000.0-1314000.0-1116000.0-665000.0-12736000.0-7000.0-175000.0-101000.01795000.0-9000.0
Percentage of OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationAfterTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationAfterTax us-gaap:DerivativeInstrumentRisk, us-gaap:HedgingDesignation, us-gaap:IncomeStatementLocation

us-gaap:InterestRateSwap, us-gaap:DesignatedAsHedgingInstrument, star:EarningsfromEquityMethodInvestments


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value-457000.0-234000.0-235000.0-333000.0-307000.0-226000.0-212000.0-126000.09000.0144000.067000.044000.081000.0-9000.0
Percentage of OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationAfterTax18.410.010.314.014.617.219.018.9-0.1-2057.1-38.3-43.64.5100.0

us-gaap:InterestRateSwap, us-gaap:DesignatedAsHedgingInstrument, us-gaap:InterestExpense


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value-2029000.0-2104000.0-2048000.0-2038000.0-1799000.0-1088000.0-904000.0-539000.0-266000.0-151000.0-244000.0-144000.00
Percentage of OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationAfterTax81.690.089.786.085.482.881.081.12.12157.1139.4142.60.0

us-gaap:OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax

us-gaap:OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax


Other
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302014-12-312014-09-302013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-31
Value657000.0-1031000.019000.0972000.0203000.0777000.0709000.01000000.0-558000.032000.023000.0265000.0-2000.0-496000.0225000.0167000.0-523000.0477000.0157000.0-108000.0-129000.0372000.0256000.0
Percentage of OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherExpenses

us-gaap:OtherExpenses


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
Value0.2110.2530.2180.0730.2030.0740.3220.407110.5080.860.2983.7161.1660.1052.704161.8691.1420.8193.1820.740.0293.3340.8882.1231.195-0.2854.690.2210.7841.4950.1465.625102.3943.9070.4533.9143.9740.4592.7222.7344.2195.239
Percentage of OtherExpenses100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherExpenses us-gaap:ConsolidationItems

us-gaap:CorporateNonSegment


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-09-30
Value0.1240.1890.0320.0360.1820.0550.2190.358110.2430.1510.1193.4260.766-0.0452.443151.2640.0570.0252.2570.8261.295
Percentage of OtherExpenses58.874.714.749.389.774.368.088.099.647.817.639.992.265.7-42.990.397.567.65.03.170.9111.638.8

us-gaap:OtherExpenses us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments

us-gaap:OperatingSegments, star:RealEstateLending


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-31
Value0.0870.0640.1860.0370.0210.0190.1030.0490.0470.2650.7090.1790.290.40.150.2610.3990.6051.0850.7940.925-0.0860.0322.0390.221-0.001-0.7730.2830.3030.430.0390.2530.4141.444
Percentage of OtherExpenses41.225.385.350.710.325.732.012.00.452.282.460.17.834.3142.99.72.532.495.096.929.1-11.6110.361.224.9-0.0-64.7-99.36.5194.65.016.9283.625.7

us-gaap:OtherOperatingActivitiesCashFlowStatement

us-gaap:OtherOperatingActivitiesCashFlowStatement


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-31
Value1.769-3.9171.711-12.1990.702-9.710.8151.01111-0.1811.602-1.5062.4160.8652.2192.447.0872.6832.7821.464-5.0947.745307.9291.92.463-1.797265.6431.2053.532-0.7242.5721.5372.8872.8022.21.5384.825-3.1142.7712.01
Percentage of OtherOperatingActivitiesCashFlowStatement100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:PaymentsForProceedsFromOtherInvestingActivities

us-gaap:PaymentsForProceedsFromOtherInvestingActivities


Payments
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-30
Value-1.818-3.092-4.0454.8821.101-0.769-6.9125.6485.66916-36.457-6.3761.848-0.491-0.5854.671-3.516-1.801108.58813-7.7164.7662.961-7.637-7.671-2.2892.409-2.4341.023-1.449-2.384-0.709-0.1992.12-1.0420.441-0.1980.07-0.658-0.7120.6621.1111.912
Percentage of PaymentsForProceedsFromOtherInvestingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:PaymentsOfDebtExtinguishmentCosts

us-gaap:PaymentsOfDebtExtinguishmentCosts


Payments
Period End2020-12-312020-09-302020-06-302020-03-312019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value0.05.2510.03.3160.00.04.1320.00.00.08.9261.5452.790.847
Percentage of PaymentsOfDebtExtinguishmentCosts0.0100.00.0100.00.00.0100.00.00.00.0100.0100.0100.0100.0

us-gaap:PaymentsOfDividendsPreferredStockAndPreferenceStock

us-gaap:PaymentsOfDividendsPreferredStockAndPreferenceStock


Payments
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-30
Value5.8745.8745.8745.8745.8745.8748.1238.1248.1248.1248.1248.1248.1248.1249.9541212121212121212121212121212121212121010101010101010101010
Percentage of PaymentsOfDividendsPreferredStockAndPreferenceStock100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:PaymentsOfFinancingCosts

us-gaap:PaymentsOfFinancingCosts


Payments
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302014-12-312014-09-302013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-31
Value0.00.0750.2364.9740.1192.3828.512110.0620.0-0.8051.3554.6690.2524.447150.746111.050.9278.0030.00.00.00.0432.0614.1560.526111.227170.941-11.336140.00.0196.34729
Percentage of PaymentsOfFinancingCosts0.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0

us-gaap:PaymentsRelatedToTaxWithholdingForShareBasedCompensation

us-gaap:PaymentsRelatedToTaxWithholdingForShareBasedCompensation


Payments
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-31
Value96000.02085000.0715000.017000.001984000.02633000.0001842000.0620000.0179000.0163000.03845000.0213000.0091000.0420000.0248000.0094000.01109000.0
Percentage of PaymentsRelatedToTaxWithholdingForShareBasedCompensation100.0100.0100.0100.00.0100.0100.00.00.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.00.0100.0100.0

us-gaap:PaymentsToAcquireEquityMethodInvestments

us-gaap:PaymentsToAcquireEquityMethodInvestments


Payments
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-01-022019-03-312019-01-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-31
Value31596553221181621835025026025025159.6214342421371.81312
Percentage of PaymentsToAcquireEquityMethodInvestments100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:PaymentsToAcquireNotesReceivable

us-gaap:PaymentsToAcquireNotesReceivable


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
Value145038221937644389586012719110334447696118467639443168791882604112519378817622205.275158.376
Percentage of PaymentsToAcquireNotesReceivable100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:PaymentsToDevelopRealEstateAssets

us-gaap:PaymentsToDevelopRealEstateAssets


Payments
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value3.6390.6484.1375.1792.4744.008189.066.8375.184
Percentage of PaymentsToDevelopRealEstateAssets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:PaymentsToMinorityShareholders

us-gaap:PaymentsToMinorityShareholders


Payments
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302016-12-31
Value4.2562.1454.1923.8033.4483.7244.0733.3154.3553.255142.826430.0130.133.523
Percentage of PaymentsToMinorityShareholders100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0

us-gaap:PreferredStockDividendsAndOtherAdjustments

us-gaap:PreferredStockDividendsAndOtherAdjustments


Preferred
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-30
Value5.8745.8745.8745.8745.8748.1248.1248.1248.1248.1248.12430121212
Percentage of PreferredStockDividendsAndOtherAdjustments100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ProceedsFromCollectionOfLoansReceivable us-gaap:AccountsNotesLoansAndFinancingReceivableByReceivableType, us-gaap:FinancialInstrumentPerformanceStatus

us-gaap:ProceedsFromCollectionOfLoansReceivable

us-gaap:FirstMortgage, us-gaap:NonperformingFinancingReceivable


Proceeds
Period End2020-12-31
Value11
Percentage of ProceedsFromCollectionOfLoansReceivable100.0

us-gaap:ProceedsFromEquityMethodInvestmentDividendsOrDistributionsReturnOfCapital

us-gaap:ProceedsFromEquityMethodInvestmentDividendsOrDistributionsReturnOfCapital


Proceeds
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-31
Value2.96420270.5331.749.8662.5102.91746134.794.483178.9296.5664.70966170.9577.6752625634.265.464323.628199.907
Percentage of ProceedsFromEquityMethodInvestmentDividendsOrDistributionsReturnOfCapital100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ProceedsFromIssuanceOfDebt

us-gaap:ProceedsFromIssuanceOfDebt


Proceeds
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-31
Value0.025654274.3923066527710.063354173320.038510490.085419503712750.01751242500.02613212.0672065.414573658
Percentage of ProceedsFromIssuanceOfDebt0.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.00.0100.0100.00.0100.0100.0100.0100.0100.00.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ProceedsFromMinorityShareholders

us-gaap:ProceedsFromMinorityShareholders


Proceeds
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value0.00.064-0.2640.4430.1540.1630.7730.02.0390.013
Percentage of ProceedsFromMinorityShareholders0.0100.0100.0100.0100.0100.0100.00.0100.00.0100.0

us-gaap:ProceedsFromSaleOfLoansReceivable

us-gaap:ProceedsFromSaleOfLoansReceivable


Proceeds
Period End2021-06-302021-03-31
Value0.079
Percentage of ProceedsFromSaleOfLoansReceivable0.0100.0

us-gaap:ProceedsFromSaleOfLoansReceivable us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName

star:OtherRealEstateEquityInvestmentJanuary2021


Proceeds
Period End2021-01-31
Value83
Percentage of ProceedsFromSaleOfLoansReceivable0.0

us-gaap:ProceedsFromSaleOfRealEstate

us-gaap:ProceedsFromSaleOfRealEstate


Proceeds
Period End2021-07-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-31
Value12512236581403219048112471243023164212355186681558711851161
Percentage of ProceedsFromSaleOfRealEstate100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ProceedsFromSaleOfRealEstateHeldforinvestment

us-gaap:ProceedsFromSaleOfRealEstateHeldforinvestment


Proceeds
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-30
Value0.2922.9675.731331.5977.4932212236581642123572611471154715776991531074190.01366.509360.00.00.6720.053
Percentage of ProceedsFromSaleOfRealEstateHeldforinvestment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.00.00.0100.00.0100.0

us-gaap:ProceedsFromSaleOfRealEstateHeldforinvestment us-gaap:RealEstateProperties

star:NetLeaseAsset


Proceeds
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312014-09-302014-06-302014-03-31
Value340.00.07.516124400.0410.0362.3113420.0190.00.07.8
Percentage of ProceedsFromSaleOfRealEstateHeldforinvestment609.00.00.0100.174.398.8186.30.00.00.00.00.00.00.00.00.00.00.05.0

us-gaap:ProvisionForLeaseLosses

us-gaap:ProvisionForLeaseLosses


Provision
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-06-302019-03-31
Value-265000.0-1601000.0-241000.0175000.0534000.01292000.000
Percentage of ProvisionForLeaseLosses100.0100.0100.0100.0100.0100.00.00.0

us-gaap:ProvisionForLeaseLosses us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments

us-gaap:OperatingSegments, star:NetLeasing


Provision
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-31
Value-265000.0-1601000.0-241000.0175000.0534000.01292000.0
Percentage of ProvisionForLeaseLosses100.0100.0100.0100.0100.0100.0

us-gaap:ProvisionForLoanLossesExpensed

us-gaap:ProvisionForLoanLossesExpensed


Provision
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
Value-2.263-3.7944.959-1.9762.0674.00310-3.8050.11-0.097-1.30.218-0.6-4.9280.235-14.9550.71.5065.6237.5194.2935.151-0.673-2.792-3.40.097-9.8345.021020162617159.23210105478109
Percentage of ProvisionForLoanLossesExpensed100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ProvisionForLoanLossesExpensed us-gaap:AccountsNotesLoansAndFinancingReceivableByReceivableType

star:SpecificReceivables


Provision
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-31
Value-0.077-0.0764.0320.8990.00.0
Percentage of ProvisionForLoanLossesExpensed3.42.081.3-45.50.00.0

us-gaap:ConstructionLoans


Provision
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-31
Value-1.253-3.648-2.597-2.5982.0123.409
Percentage of ProvisionForLoanLossesExpensed55.496.2-52.4131.597.385.2

us-gaap:FinanceReceivables


Provision
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-31
Value-0.105-0.152-0.0260.0170.0590.136
Percentage of ProvisionForLoanLossesExpensed4.64.0-0.5-0.92.93.4

us-gaap:LoansReceivable


Provision
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-31
Value-0.1960.1721.165-0.4270.2190.323
Percentage of ProvisionForLoanLossesExpensed8.7-4.523.521.610.68.1

us-gaap:ProvisionForLoanLossesExpensed us-gaap:AccountsNotesLoansAndFinancingReceivableByReceivableType, us-gaap:FinancialInstrumentPerformanceStatus

us-gaap:FirstMortgage, us-gaap:NonperformingFinancingReceivable


Provision
Period End2020-12-31
Value4.2
Percentage of ProvisionForLoanLossesExpensed84.7

us-gaap:ProvisionForLoanLossesExpensed us-gaap:BalanceSheetLocation

star:AccruedInterestAndOperatingLeaseIncomeReceivableNet


Provision
Period End2020-12-312020-09-30
Value0.00.9
Percentage of ProvisionForLoanLossesExpensed0.0-45.5

us-gaap:ProvisionForLoanLossesExpensed us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments

us-gaap:OperatingSegments, star:NetLeasing


Provision
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-31
Value-0.105-0.152-0.0260.0190.0570.1370.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of ProvisionForLoanLossesExpensed4.64.0-0.5-1.02.83.4-0.00.0-0.0-0.00.00.0-0.00.0-0.00.00.00.00.00.00.00.0-0.0-0.0-0.00.0-0.00.00.0

us-gaap:OperatingSegments, star:RealEstateLending


Provision
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-31
Value-2.158-3.6424.985-1.9952.013.86610-3.8050.11-0.097-1.30.218-4.9280.235-14.9550.71.5065.6237.5194.2935.151-0.673-2.792-3.40.097-9.8345.0210
Percentage of ProvisionForLoanLossesExpensed95.496.0100.5101.097.296.6100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:RelatedPartyTransactionOtherRevenuesFromTransactionsWithRelatedParty us-gaap:RelatedPartyTransactionsByRelatedParty

us-gaap:RelatedPartyTransactionOtherRevenuesFromTransactionsWithRelatedParty

srt:AffiliatedEntity


Related
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-30
Value1900000.01900000.01300000.01300000.01300000.0500000.0500000.0500000.0400000.0
Percentage of RelatedPartyTransactionOtherRevenuesFromTransactionsWithRelatedParty100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:RepaymentsOfDebt

us-gaap:RepaymentsOfDebt


Repayments
Period End2021-03-312020-03-312019-03-312018-03-312017-03-312016-03-312015-03-312014-03-312013-03-31
Value321133793493532821260846
Percentage of RepaymentsOfDebt100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:RevenueFromRelatedParties us-gaap:ProductOrService, us-gaap:RelatedPartyTransactionsByRelatedParty

us-gaap:RevenueFromRelatedParties

us-gaap:ManagementService, srt:AffiliatedEntity


Revenue
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-30
Value3.53.53.23.22.91.91.51.50.9
Percentage of RevenueFromRelatedParties100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:SaleOfStockConsiderationReceivedOnTransaction us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName, us-gaap:InvestmentType

us-gaap:SaleOfStockConsiderationReceivedOnTransaction

star:SAFEEquityMethodInvestment, us-gaap:RealEstateInvestment


Sale
Period End2020-11-302020-03-312019-11-302019-08-31
Value6580130168
Percentage of SaleOfStockConsiderationReceivedOnTransaction100.0100.0100.0100.0

us-gaap:SaleOfStockNumberOfSharesIssuedInTransaction us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName, us-gaap:InvestmentType

us-gaap:SaleOfStockNumberOfSharesIssuedInTransaction

star:SAFEEquityMethodInvestment, us-gaap:RealEstateInvestment


Sale
Period End2020-11-302020-03-312019-11-302019-08-31
Value1100000.01700000.03800000.06000000.0
Percentage of SaleOfStockNumberOfSharesIssuedInTransaction100.0100.0100.0100.0

us-gaap:SalesTypeLeaseImpairmentLoss

us-gaap:SalesTypeLeaseImpairmentLoss


Sales
Period End2020-09-302020-06-302020-03-31
Value176000.0534000.01292000.0
Percentage of SalesTypeLeaseImpairmentLoss100.0100.0100.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue us-gaap:TitleOfIndividual, us-gaap:AwardDate

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue

srt:Director, star:AwardDateOne


Share
Period End2020-12-31
Value0
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue0.0

srt:Director, star:AwardDateTwo


Share
Period End2020-12-31
Value0
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue0.0

srt:Director, star:CommonStockEquivalents


Share
Period End2021-03-31
Value18.1
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue0.0

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

srt:Director, star:CommonStockEquivalents


Share
Period End2020-09-30
Value0.46
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue0.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod us-gaap:AwardType

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod

us-gaap:RestrictedStockUnitsRSU


Share
Period End2021-06-302021-03-312020-12-312019-03-312018-12-312018-09-302018-06-302018-03-31
Value5000.0107000.0139000.052000.097000.05000.020000.020000.0
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:SharebasedCompensationArrangementBySharebasedPaymentAwardAwardVestingRightsPercentage

us-gaap:SharebasedCompensationArrangementBySharebasedPaymentAwardAwardVestingRightsPercentage


Sharebased
Period End2021-06-302021-03-31
Value015.0
Percentage of SharebasedCompensationArrangementBySharebasedPaymentAwardAwardVestingRightsPercentage0.0100.0

us-gaap:SharebasedCompensationArrangementBySharebasedPaymentAwardAwardVestingRightsPercentage us-gaap:AwardType

star:Allperformanceincentiveplans


Sharebased
Period End2021-06-302021-03-31
Value040.0
Percentage of SharebasedCompensationArrangementBySharebasedPaymentAwardAwardVestingRightsPercentage0.0266.7

us-gaap:StockRepurchasedAndRetiredDuringPeriodShares

us-gaap:StockRepurchasedAndRetiredDuringPeriodShares


Stock
Period End2021-06-302021-03-312020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-31
Value1.10.71.51.01.10.03.92.30.00.00.00.80.00.73.75.84.01.6557650.0002350.044
Percentage of StockRepurchasedAndRetiredDuringPeriodShares100.0100.0100.0100.0100.00.0100.0100.00.00.00.0100.00.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:StockRepurchasedDuringPeriodShares

us-gaap:StockRepurchasedDuringPeriodShares


Stock
Period End2020-09-302019-09-30
Value1200000.00
Percentage of StockRepurchasedDuringPeriodShares100.00.0

us-gaap:StockRepurchasedDuringPeriodValue

us-gaap:StockRepurchasedDuringPeriodValue


Stock
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-31
Value19126.993131512150.44239190.00.00.08.3040.0450.06.594335850190.0030.558
Percentage of StockRepurchasedDuringPeriodValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.00.0100.00.0100.00.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:StockRepurchasedDuringPeriodValue us-gaap:StatementEquityComponents

us-gaap:AdditionalPaidInCapital


Stock
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-31
Value19126.993131512150.44239190.00.00.08.3030.00.06.593335850190.0030.558
Percentage of StockRepurchasedDuringPeriodValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.00.0100.00.00.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:CommonStock


Stock
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-312016-09-302016-06-302016-03-312015-12-31
Value0.0010.0010.00.0020.0020.0010.0010.00.0040.0020.00.00.00.0010.00.00.0010.0030.0060.003
Percentage of StockRepurchasedDuringPeriodValue0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:StraightLineRent

us-gaap:StraightLineRent


Straight
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-31
Value2.5272.6842.7763.7773.8813.6183.9752.4435.5454.2226.874.3671.5132.2391.961.6661.0952.1092.5812.3472.8672.1262.5761.6741.9041.7961.7051.8372.2592.6912.5883.0122.8853.5923.3582.9882.952.5162.64
Percentage of StraightLineRent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

srt:MortgageLoansOnRealEstateFaceAmountOfMortgages

srt:MortgageLoansOnRealEstateFaceAmountOfMortgages


Mortgage
Period End2020-12-312019-12-312018-12-31
Value498602790
Percentage of MortgageLoansOnRealEstateFaceAmountOfMortgages100.0100.0100.0

srt:MortgageLoansOnRealEstateFaceAmountOfMortgages us-gaap:MortgageLoansOnRealEstateLoanType

star:Borrower


Mortgage
Period End2020-12-312019-12-312018-12-31
Value8397107
Percentage of MortgageLoansOnRealEstateFaceAmountOfMortgages16.816.213.6

star:BorrowerB


Mortgage
Period End2020-12-312019-12-312018-12-31
Value589488
Percentage of MortgageLoansOnRealEstateFaceAmountOfMortgages11.715.611.2

star:BorrowerC


Mortgage
Period End2020-12-312019-12-312018-12-31
Value614784
Percentage of MortgageLoansOnRealEstateFaceAmountOfMortgages12.48.010.6

star:BorrowerD


Mortgage
Period End2020-12-312019-12-312018-12-31
Value535271
Percentage of MortgageLoansOnRealEstateFaceAmountOfMortgages10.68.69.1

star:BorrowerE


Mortgage
Period End2020-12-312019-12-312018-12-31
Value524931
Percentage of MortgageLoansOnRealEstateFaceAmountOfMortgages10.58.23.9

star:BorrowerF


Mortgage
Period End2020-12-312019-12-312018-12-31
Value511230
Percentage of MortgageLoansOnRealEstateFaceAmountOfMortgages10.42.13.9

star:BorrowerG


Mortgage
Period End2020-12-312019-12-312018-12-31
Value424629
Percentage of MortgageLoansOnRealEstateFaceAmountOfMortgages8.57.73.7

star:BorrowerH


Mortgage
Period End2020-12-312019-12-312018-12-31
Value243827
Percentage of MortgageLoansOnRealEstateFaceAmountOfMortgages4.96.53.5

star:BorrowerI


Mortgage
Period End2020-12-312019-12-312018-12-31
Value223427
Percentage of MortgageLoansOnRealEstateFaceAmountOfMortgages4.55.73.4

star:BorrowerJ


Mortgage
Period End2020-12-312019-12-31
Value2035
Percentage of MortgageLoansOnRealEstateFaceAmountOfMortgages4.25.9

star:SeniorMortgages


Mortgage
Period End2020-12-312019-12-312018-12-31
Value487591779
Percentage of MortgageLoansOnRealEstateFaceAmountOfMortgages97.798.298.7

star:SeniorMortgagesIndividuallyLessThan3Percent


Mortgage
Period End2020-12-312019-12-312018-12-31
Value1525282
Percentage of MortgageLoansOnRealEstateFaceAmountOfMortgages3.14.335.8

star:SubordinateMortgages


Mortgage
Period End2020-12-312019-12-312018-12-31
Value111010
Percentage of MortgageLoansOnRealEstateFaceAmountOfMortgages2.31.81.3

star:SubordinateMortgagesIndividuallyLessThan3Percent


Mortgage
Period End2020-12-312019-12-312018-12-31
Value111010
Percentage of MortgageLoansOnRealEstateFaceAmountOfMortgages2.31.81.3

srt:RealEstateAndAccumulatedDepreciationAmountOfEncumbrances

srt:RealEstateAndAccumulatedDepreciationAmountOfEncumbrances


Real
Period End2020-12-312019-12-312018-12-31
Value720720802
Percentage of RealEstateAndAccumulatedDepreciationAmountOfEncumbrances100.0100.0100.0

star:AccruedInterestAndOperatingLeaseIncomeReceivableNet

star:AccruedInterestAndOperatingLeaseIncomeReceivableNet


Accrued
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312012-12-31
Value7.3288.686108.0531010108.3379.07911109.9541011111010121412131618151618161314151415
Percentage of AccruedInterestAndOperatingLeaseIncomeReceivableNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

star:AccruedInterestAndOperatingLeaseIncomeReceivableNet us-gaap:ConsolidatedEntities

us-gaap:VariableInterestEntityPrimaryBeneficiary


Accrued
Period End2021-06-302021-03-312020-12-312019-12-31
Value1.2952.5011.4721.208
Percentage of AccruedInterestAndOperatingLeaseIncomeReceivableNet17.728.814.611.9

star:AccruedInterestAndOperatingLeaseIncomeReceivableNet us-gaap:InvestmentsByConsolidatedAndNonconsolidatedEntities

us-gaap:VariableInterestEntityPrimaryBeneficiary


Accrued
Period End2020-09-302019-12-31
Value1.1541.208
Percentage of AccruedInterestAndOperatingLeaseIncomeReceivableNet14.311.9

star:AccruedLiabilitiesOtherThanInterest

star:AccruedLiabilitiesOtherThanInterest


Accrued
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312012-12-31
Value104859484827683857571979287751019384627269716568604943625742315850
Percentage of AccruedLiabilitiesOtherThanInterest100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

star:AccruedLiabilitiesOtherThanInterest us-gaap:AwardType

star:Allperformanceincentiveplans


Accrued
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312014-12-31
Value81686958575441443933373634323833312822201919167.8
Percentage of AccruedLiabilitiesOtherThanInterest77.479.972.969.269.271.750.051.852.946.338.738.839.142.437.735.637.145.530.829.127.830.024.112.4

star:AccumulatedDepreciationFurnitureFixturesAndLeaseholdImprovements

star:AccumulatedDepreciationFurnitureFixturesAndLeaseholdImprovements


Accumulated
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312012-12-31
Value141414141313131212121111111010109.89.59.08.88.68.38.17.87.57.37.16.86.66.46.26.2
Percentage of AccumulatedDepreciationFurnitureFixturesAndLeaseholdImprovements100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

star:AggregateCostForFederalIncomeTaxPurposes

star:AggregateCostForFederalIncomeTaxPurposes


Aggregate
Period End2020-12-31
Value2560
Percentage of AggregateCostForFederalIncomeTaxPurposes100.0

star:AllowanceForCreditLoss

star:AllowanceForCreditLoss


Allowance
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-31
Value7.1359.0581333353328
Percentage of AllowanceForCreditLoss100.0100.0100.0100.0100.0100.0100.0

star:AssetsOwnedByTaxableRealEstateInvestmentTrustSubsidiaries dei:LegalEntity

star:AssetsOwnedByTaxableRealEstateInvestmentTrustSubsidiaries

star:TaxableReitSubsidiaries


Assets
Period End2020-12-31
Value562
Percentage of AssetsOwnedByTaxableRealEstateInvestmentTrustSubsidiaries100.0

star:AssetsWithForeclosureElectionsCarryingValue

star:AssetsWithForeclosureElectionsCarryingValue


Assets
Period End2020-12-31
Value31
Percentage of AssetsWithForeclosureElectionsCarryingValue100.0

star:AvailableforsaleSecuritiesDebtSecuritiesFairValue

star:AvailableforsaleSecuritiesDebtSecuritiesFairValue


Availableforsale
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-312015-12-312014-12-31
Value282425242423232423222121212122211.1611.167
Percentage of AvailableforsaleSecuritiesDebtSecuritiesFairValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

star:AvailableforsaleSecuritiesDebtSecuritiesFairValue us-gaap:FinancialInstrument

us-gaap:MunicipalBonds


Availableforsale
Period End2021-06-302021-03-312020-12-312019-12-312018-12-312017-12-31
Value282425232122
Percentage of AvailableforsaleSecuritiesDebtSecuritiesFairValue100.0100.0100.0100.0100.0100.0

us-gaap:USStatesAndPoliticalSubdivisions


Availableforsale
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302017-12-31
Value24242323242322212122
Percentage of AvailableforsaleSecuritiesDebtSecuritiesFairValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

star:AvailableforsaleSecuritiesDebtSecurityFaceAmount us-gaap:FinancialInstrument

star:AvailableforsaleSecuritiesDebtSecurityFaceAmount

us-gaap:MunicipalBonds


Availableforsale
Period End2021-06-302021-03-312020-12-312019-12-312018-12-312017-12-31
Value232020212121
Percentage of AvailableforsaleSecuritiesDebtSecurityFaceAmount100.0100.0100.0100.0100.0100.0

us-gaap:USStatesAndPoliticalSubdivisions


Availableforsale
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302017-12-31
Value20202021212121212121
Percentage of AvailableforsaleSecuritiesDebtSecurityFaceAmount0.00.00.0100.00.00.00.0100.00.0100.0

star:CashAndOtherAssets

star:CashAndOtherAssets


Cash
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312012-12-31
Value64869160359858488281414637747631329114214186018982145120012126398458048851033979989944768974679757907556
Percentage of CashAndOtherAssets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

star:CommonStockClosingPricePerShare us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName

star:CommonStockClosingPricePerShare

star:SafeholdInc.


Common
Period End2021-06-302020-12-31
Value78.572.49
Percentage of CommonStockClosingPricePerShare100.0100.0

star:ConstructionLoanPercentComplete us-gaap:AccountsNotesLoansAndFinancingReceivableByReceivableType, us-gaap:FinancingReceivablePortfolioSegment

star:ConstructionLoanPercentComplete

star:ConstructionLoansCompletedConstruction, us-gaap:CommercialPortfolioSegment


Construction
Period End2021-06-302021-03-312020-12-312020-09-302020-06-30
Value91.085.047.047.00.2
Percentage of ConstructionLoanPercentComplete100.0100.0100.0100.0100.0

star:ConstructionLoansSubstantiallyCompletedConstruction, us-gaap:CommercialPortfolioSegment


Construction
Period End2020-12-312020-09-302020-06-30
Value5.04.00.35
Percentage of ConstructionLoanPercentComplete10.68.5175.0

star:DebtSecuritiesAmortizedCostBasis

star:DebtSecuritiesAmortizedCostBasis


Debt
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312013-12-31
Value1171121111091081071061041031021211191174087868480796259466290165187187141
Percentage of DebtSecuritiesAmortizedCostBasis100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

star:DebtSecuritiesFaceAmount

star:DebtSecuritiesFaceAmount


Debt
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312013-12-31
Value1231201201201201201211211211211421411404087868481796259465584153175177140
Percentage of DebtSecuritiesFaceAmount100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

star:DebtSecuritiesFairValue

star:DebtSecuritiesFairValue


Debt
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312013-12-31
Value1211161151131121101081071051031221211184191888783826260466291169194191141
Percentage of DebtSecuritiesFairValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

star:DebtSecuritiesNetCarryingAmount

star:DebtSecuritiesNetCarryingAmount


Debt
Period End2020-12-312019-12-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312013-12-31
Value1151081221191184089878581796259466290165187187141
Percentage of DebtSecuritiesNetCarryingAmount100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

star:DebtSecuritiesUnrealizedHoldingGains

star:DebtSecuritiesUnrealizedHoldingGains


Debt
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302014-12-31
Value4219000.03563000.04594000.03951000.03931000.02960000.02756000.02962000.02184000.01475000.0483000.01737000.01033000.01043000.03193000.02033000.02536000.02730000.03179000.0415000.0616000.0171000.0151000.0121000.0147000.0
Percentage of DebtSecuritiesUnrealizedHoldingGains100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

star:DeferredExpensesAndOtherAssetsNet

star:DeferredExpensesAndOtherAssetsNet


Deferred
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312012-12-31
Value279428436446440452442487386368289283279134141134147204199190173179206209238204162188187186237163
Percentage of DeferredExpensesAndOtherAssetsNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

star:DeferredExpensesAndOtherAssetsNet us-gaap:ConsolidatedEntities

us-gaap:VariableInterestEntityPrimaryBeneficiary


Deferred
Period End2021-06-302021-03-312020-12-312019-12-31
Value117120122134
Percentage of DeferredExpensesAndOtherAssetsNet42.228.128.130.3

star:DeferredExpensesAndOtherAssetsNet us-gaap:InvestmentsByConsolidatedAndNonconsolidatedEntities

us-gaap:VariableInterestEntityPrimaryBeneficiary


Deferred
Period End2020-09-302019-12-31
Value126134
Percentage of DeferredExpensesAndOtherAssetsNet28.430.3

star:EquityMethodInvestmentRelatedPartyOwnershipPercentage us-gaap:EquityMethodInvestmentNonconsolidatedInvestee, us-gaap:RealEstateProperties

star:EquityMethodInvestmentRelatedPartyOwnershipPercentage

star:IStarNetLeaseILLC, star:NetLeaseAsset


Equity
Period End2020-12-31
Value0.6
Percentage of EquityMethodInvestmentRelatedPartyOwnershipPercentage100.0

star:EquityMethodInvestmentRelatedPartyOwnershipPercentage us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName, us-gaap:RealEstateProperties

star:IStarNetLeaseILLC, star:NetLeaseAsset


Equity
Period End2020-09-30
Value0.6
Percentage of EquityMethodInvestmentRelatedPartyOwnershipPercentage0.0

star:FairValueofEquityMethodInvestment us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName

star:FairValueofEquityMethodInvestment

star:SafeholdInc.


Fair
Period End2021-06-302021-03-312020-12-312020-09-30
Value2800240025002100
Percentage of FairValueofEquityMethodInvestment100.0100.0100.0100.0

star:FinanceLeaseLiabilityToBePaidAfterYearFour

star:FinanceLeaseLiabilityToBePaidAfterYearFour


Finance
Period End2021-06-302021-03-312020-12-312020-09-30
Value1567156715671573
Percentage of FinanceLeaseLiabilityToBePaidAfterYearFour100.0100.0100.0100.0

star:FinancingReceivableAndOtherLendingInvestmentsAllowanceForCreditLoss

star:FinancingReceivableAndOtherLendingInvestmentsAllowanceForCreditLoss


Financing
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-31
Value1000000.01300000.01000000.01700000.02400000.02600000.0
Percentage of FinancingReceivableAndOtherLendingInvestmentsAllowanceForCreditLoss100.0100.0100.0100.0100.0100.0

star:FinancingReceivableBeforeAllowanceForCreditLossAndOtherLendingInvestments

star:FinancingReceivableBeforeAllowanceForCreditLossAndOtherLendingInvestments


Financing
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-31
Value462542745798837884856
Percentage of FinancingReceivableBeforeAllowanceForCreditLossAndOtherLendingInvestments100.0100.0100.0100.0100.0100.0100.0

star:FinancingReceivableNetOfAllowanceForCreditLossesCollectivelyEvaluatedForImpairment

star:FinancingReceivableNetOfAllowanceForCreditLossesCollectivelyEvaluatedForImpairment


Financing
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-31
Value398478679700786835811
Percentage of FinancingReceivableNetOfAllowanceForCreditLossesCollectivelyEvaluatedForImpairment100.0100.0100.0100.0100.0100.0100.0

star:FinancingReceivableNetOfAllowanceForCreditLossesIndividuallyEvaluatedForImpairment

star:FinancingReceivableNetOfAllowanceForCreditLossesIndividuallyEvaluatedForImpairment


Financing
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-31
Value56555264151516
Percentage of FinancingReceivableNetOfAllowanceForCreditLossesIndividuallyEvaluatedForImpairment100.0100.0100.0100.0100.0100.0100.0

star:FurnitureFixturesAndLeaseholdImprovementsNet

star:FurnitureFixturesAndLeaseholdImprovementsNet


Furniture
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312017-12-312016-12-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312012-12-31
Value1852000.01884000.02024000.02204000.02333000.02467000.02736000.02980000.03271000.03549000.03850000.04652000.05691000.04405000.04621000.04853000.05113000.05409000.05645000.05917000.06190000.06557000.07537000.0
Percentage of FurnitureFixturesAndLeaseholdImprovementsNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

star:HeldtomaturitySecuritiesDebtSecurityFaceAmount us-gaap:FinancialInstrument

star:HeldtomaturitySecuritiesDebtSecurityFaceAmount

us-gaap:CorporateDebtSecurities


Heldtomaturity
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302017-12-31
Value10010010010010010010012012066
Percentage of HeldtomaturitySecuritiesDebtSecurityFaceAmount100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DebtSecurities


Heldtomaturity
Period End2021-06-302021-03-312020-12-312019-12-312018-12-312017-12-31
Value10010010010012066
Percentage of HeldtomaturitySecuritiesDebtSecurityFaceAmount0.00.00.0100.0100.0100.0

star:ImpairedLandandDevelopmentFairValueDisclosure us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency

star:ImpairedLandandDevelopmentFairValueDisclosure

us-gaap:FairValueInputsLevel3, us-gaap:FairValueMeasurementsNonrecurring


Impaired
Period End2020-12-312020-06-302019-12-312019-06-302018-12-312018-06-302017-12-31
Value6.0786.628401.282788.87321
Percentage of ImpairedLandandDevelopmentFairValueDisclosure100.0100.0100.0100.0100.0100.0100.0

star:ImpairedLandandDevelopmentFairValueDisclosure us-gaap:FairValueByMeasurementBasis, us-gaap:FairValueByMeasurementFrequency

us-gaap:EstimateOfFairValueFairValueDisclosure, us-gaap:FairValueMeasurementsNonrecurring


Impaired
Period End2020-12-312020-06-302019-12-312019-06-302018-12-312018-06-302017-12-31
Value6.0786.628401.282788.87321
Percentage of ImpairedLandandDevelopmentFairValueDisclosure100.0100.0100.0100.0100.0100.0100.0

star:LesseeOperatingLeaseLiabilityOtherAdjustments

star:LesseeOperatingLeaseLiabilityOtherAdjustments


Lessee
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-31
Value22232324242425
Percentage of LesseeOperatingLeaseLiabilityOtherAdjustments100.0100.0100.0100.0100.0100.0100.0

star:LesseeOperatingLeaseLiabilityToBePaidAfterYearFour

star:LesseeOperatingLeaseLiabilityToBePaidAfterYearFour


Lessee
Period End2021-06-302021-03-312020-12-312020-09-30
Value496000.0496000.0496000.06793000.0
Percentage of LesseeOperatingLeaseLiabilityToBePaidAfterYearFour100.0100.0100.0100.0

star:LessorOperatingLeasePaymentToBeReceivedAfterYearFour us-gaap:RealEstateProperties

star:LessorOperatingLeasePaymentToBeReceivedAfterYearFour

star:NetLeaseAsset


Lessor
Period End2021-06-302021-03-31
Value13331254
Percentage of LessorOperatingLeasePaymentToBeReceivedAfterYearFour100.0100.0

star:LiabilitiesHeldForSale

star:LiabilitiesHeldForSale


Liabilities
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value2.2010.2310.0270.1050.0990.0610.0570.1650.6852342.341
Percentage of LiabilitiesHeldForSale100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

star:LoanParticipationsPayableGross

star:LoanParticipationsPayableGross


Loan
Period End2020-12-31
Value42
Percentage of LoanParticipationsPayableGross100.0

star:LoanParticipationsPayableUnamortizedDiscountPremiumAndDeferredFinancingCostsNet

star:LoanParticipationsPayableUnamortizedDiscountPremiumAndDeferredFinancingCostsNet


Loan
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312017-12-31
Value10000.068000.0125000.018000.054000.089000.0124000.0158000.0312000.0
Percentage of LoanParticipationsPayableUnamortizedDiscountPremiumAndDeferredFinancingCostsNet100.0100.0100.0100.0100.0100.0100.0100.0100.0

star:LoanParticipationsPayablegross

star:LoanParticipationsPayablegross


Loan
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312017-12-31
Value424140373533302522102
Percentage of LoanParticipationsPayablegross100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

star:LoanPortfolioAccruedInterestAfterAllowanceForCreditLoss

star:LoanPortfolioAccruedInterestAfterAllowanceForCreditLoss


Loan
Period End2020-12-312020-09-302020-06-302020-03-312019-12-31
Value5000000.03600000.05100000.04800000.04200000.0
Percentage of LoanPortfolioAccruedInterestAfterAllowanceForCreditLoss100.0100.0100.0100.0100.0

star:LoansAndOtherLendingInvestments

star:LoansAndOtherLendingInvestments


Loans
Period End2021-06-302020-12-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312012-12-31
Value454732827808902894988102910521400130011091170138114501632156816371601158515671537137711901456147613701829
Percentage of LoansAndOtherLendingInvestments100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

star:LoansAndOtherLendingInvestments us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments

us-gaap:OperatingSegments, star:NetLeasing


Loans
Period End2021-06-302020-12-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312012-12-31
Value47454444440.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of LoansAndOtherLendingInvestments10.46.25.45.54.90.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:OperatingSegments, star:RealEstateLending


Loans
Period End2021-06-302020-12-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312012-12-31
Value407686783764858894988102910521400130011091170138114501632156816371601158515671537137711901456147613701829
Percentage of LoansAndOtherLendingInvestments89.693.894.694.595.1100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

star:LoansReceivableNetOfDeferredIncome us-gaap:AccountsNotesLoansAndFinancingReceivableByReceivableType, us-gaap:FinancialInstrumentPerformanceStatus

star:LoansReceivableNetOfDeferredIncome

us-gaap:FirstMortgage, us-gaap:NonperformingFinancingReceivable


Loans
Period End2020-12-31
Value15
Percentage of LoansReceivableNetOfDeferredIncome100.0

star:LoansReceivableRelatedParty us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName

star:LoansReceivableRelatedParty

star:OtherRealEstateEquityInvestmentAug2018


Loans
Period 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
Value333333333333333231312828
Percentage of LoansReceivableRelatedParty100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

star:LongTermDebtMaturityAfterYearFour

star:LongTermDebtMaturityAfterYearFour


Long
Period End2021-06-302021-03-312020-09-302020-06-30
Value74274315701165
Percentage of LongTermDebtMaturityAfterYearFour100.0100.0100.0100.0

star:LongTermDebtMaturityAfterYearFour us-gaap:LongtermDebtType

us-gaap:SecuredDebt


Long
Period End2021-06-302021-03-312020-09-302020-06-30
Value242243520515
Percentage of LongTermDebtMaturityAfterYearFour32.732.833.244.2

us-gaap:UnsecuredDebt


Long
Period End2021-06-302021-03-312020-09-302020-06-30
Value5005001050650
Percentage of LongTermDebtMaturityAfterYearFour67.367.266.855.8

star:OtherCommitments

star:OtherCommitments


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-31
Value1417129.96711171624243339309.3229.4271045454545454545454546454545464646
Percentage of OtherCommitments100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

star:OtherCommitments star:UnfundedFinancialCommitments

us-gaap:OtherInvestments


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-30
Value1417129.96711171624243339309.3229.427104545454545454545454645454546
Percentage of OtherCommitments100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

star:OtherLendingInvestments

star:OtherLendingInvestments


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302018-12-31
Value170163162159157154153151149122
Percentage of OtherLendingInvestments100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

star:OtherLendingInvestments us-gaap:FinancialInstrument

us-gaap:AvailableforsaleSecurities


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-31
Value28242524242323
Percentage of OtherLendingInvestments16.514.715.515.415.615.315.6

us-gaap:FinanceReceivables


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-31
Value48474645454444
Percentage of OtherLendingInvestments28.429.028.628.628.628.828.9

us-gaap:HeldtomaturitySecurities


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-31
Value93929089878684
Percentage of OtherLendingInvestments55.156.355.855.955.855.955.5

star:OtherLendingInvestmentsCollectivelyEvaluatedForImpairment us-gaap:FinancialInstrument

star:OtherLendingInvestmentsCollectivelyEvaluatedForImpairment

us-gaap:AvailableforsaleSecurities


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-31
Value28242524242323
Percentage of OtherLendingInvestmentsCollectivelyEvaluatedForImpairment100.0100.0100.0100.0100.0100.0100.0

us-gaap:HeldtomaturitySecurities


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-31
Value93929089878684
Percentage of OtherLendingInvestmentsCollectivelyEvaluatedForImpairment333.7383.5358.9362.3356.6365.3355.6

star:PerformanceBasedCommitments

star:PerformanceBasedCommitments


Performance
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-31
Value1992159112623031842737139439444949753047137737434233940649548778972869972763957939830428472
Percentage of PerformanceBasedCommitments100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

star:PerformanceBasedCommitments star:UnfundedFinancialCommitments

star:LoanParticipationsPayable


Performance
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-30
Value7.58.09.8121416192427313583102115130155158212230
Percentage of PerformanceBasedCommitments8.26.34.33.83.34.55.16.36.16.36.617.727.030.838.045.739.042.847.4

us-gaap:LoansReceivable


Performance
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-31
Value94110638311718322529433038543647950543633831731330536645945275268962066060053734826223319
Percentage of PerformanceBasedCommitments47.251.369.266.251.257.752.879.283.997.697.296.595.392.589.584.791.590.090.192.992.995.394.688.790.793.992.887.686.181.826.8

us-gaap:OtherInvestments


Performance
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-30
Value3335252742531310.00.00.00.00.01524285021242521201923605427273336
Percentage of PerformanceBasedCommitments16.916.328.322.118.316.730.80.00.00.00.00.02.85.27.613.66.27.16.34.34.22.53.28.77.54.34.78.311.8

us-gaap:RealEstate


Performance
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-31
Value71692.2131470817077639.54312179.77410106.1367.8869.814141314171518131214166.2955153
Percentage of PerformanceBasedCommitments35.932.42.411.730.425.716.420.816.12.42.83.51.82.32.91.62.32.93.62.83.02.22.12.71.81.92.54.12.118.273.2

star:PortfolioAssets

star:PortfolioAssets


Portfolio
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312012-12-31
Value41194101425842904298433942714116399139073684393739403848383236493713408241854392440546064589466346834708469445054794473047345603
Percentage of PortfolioAssets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

star:PortfolioAssets us-gaap:ConsolidationItems

us-gaap:CorporateNonSegment


Portfolio
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302015-12-312013-12-312012-12-31
Value8683697256524344437.2277.5167.2676.7881213182732335373145351
Percentage of PortfolioAssets2.12.01.61.71.31.21.01.11.10.20.20.20.20.30.40.50.70.80.81.21.63.16.3

star:PortfolioAssets us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments

us-gaap:OperatingSegments, star:LandAndDevelopmentSegment


Portfolio
Period End2021-06-302020-12-31
Value395461
Percentage of PortfolioAssets9.610.8

us-gaap:OperatingSegments, star:LandandDevelopmentSegment


Portfolio
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302015-12-31
Value4184615195415506236537116616637207187579249249171024103011141102
Percentage of PortfolioAssets10.210.812.112.612.714.615.917.816.918.018.318.219.724.125.324.725.124.625.424.0

us-gaap:OperatingSegments, star:NetLeasing


Portfolio
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312012-12-31
Value29342816278327132679266025502381212420761703170116801087102010291043109011091105114911681181122112361313131813421292130113741332
Percentage of PortfolioAssets71.268.765.463.262.361.359.757.953.253.146.243.242.628.326.628.228.126.726.525.226.125.425.726.226.427.928.129.827.027.529.023.8

us-gaap:OperatingSegments, star:OperatingProperty


Portfolio
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312012-12-31
Value2482502562642622682702732532673214784825915735665545535624874936226296236606588048379058608821119
Percentage of PortfolioAssets6.06.16.06.26.16.26.36.66.46.98.712.112.215.415.015.514.913.613.411.111.213.513.713.414.114.017.118.618.918.218.620.0

us-gaap:OperatingSegments, star:RealEstateLending


Portfolio
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312012-12-31
Value454531686720757807783764858894988102910521400130011091170138114501632156816371601158515671537137711901456147613701829
Percentage of PortfolioAssets11.013.016.116.817.618.618.318.621.522.926.826.126.736.433.930.431.533.834.737.235.635.534.934.033.532.729.326.430.431.228.932.7

star:PreferredStockSharesIssuedAndOutstanding

star:PreferredStockSharesIssuedAndOutstanding


Preferred
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312012-12-31
Value1212121212121616161616161616161625252525252525252525252525252521
Percentage of PreferredStockSharesIssuedAndOutstanding100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

star:ProceedsFromSaleOfGroundLease us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName

star:ProceedsFromSaleOfGroundLease

star:GroundLeaseMultifamilyDevelopmentSanJoseCA


Proceeds
Period End2020-09-30
Value34
Percentage of ProceedsFromSaleOfGroundLease100.0

star:OtherRealEstateEquityInvestmentJanuary2021


Proceeds
Period End2020-09-30
Value34
Percentage of ProceedsFromSaleOfGroundLease100.0

star:ProceedsFromSalePurchaseOptionAgreement us-gaap:RelatedPartyTransactionsByRelatedParty

star:ProceedsFromSalePurchaseOptionAgreement

srt:AffiliatedEntity


Proceeds
Period End2021-06-30
Value1200000.0
Percentage of ProceedsFromSalePurchaseOptionAgreement100.0

star:PropertiesPledgedAsCollateralBookValue

star:PropertiesPledgedAsCollateralBookValue


Properties
Period End2020-12-31
Value263
Percentage of PropertiesPledgedAsCollateralBookValue100.0

star:PurchaseOptionCostToAcquireProperty dei:LegalEntity

star:PurchaseOptionCostToAcquireProperty

star:SafeholdInc.


Purchase
Period End2021-06-30
Value215
Percentage of PurchaseOptionCostToAcquireProperty100.0

star:PurchasePriceForPropertiesAcquiredFromLessee

star:PurchasePriceForPropertiesAcquiredFromLessee


Purchase
Period End2021-06-302019-12-312019-09-302019-06-302019-05-31
Value4244444444
Percentage of PurchasePriceForPropertiesAcquiredFromLessee100.0100.0100.0100.0100.0

star:PurchasePriceForPropertiesAcquiredFromLessee star:AssetAcquisition

star:LandParcelOne


Purchase
Period End2021-06-30
Value42
Percentage of PurchasePriceForPropertiesAcquiredFromLessee100.0

star:LandParcelTwo


Purchase
Period End2021-06-30
Value42
Percentage of PurchasePriceForPropertiesAcquiredFromLessee100.0

star:RealEstateAssetBasisDifferences dei:LegalEntity

star:RealEstateAssetBasisDifferences

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