BOKF


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

Table of contents



us-gaap:CommonStockValue
us-gaap:ConsolidatedEntities
us-gaap:StatementClassOfStock
us-gaap:PreferredStockParOrStatedValuePerShare
us-gaap:StatementEquityComponents
us-gaap:SharesIssued

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:TierOneRiskBasedCapitalToRiskWeightedAssets
dei:LegalEntity, us-gaap:ConsolidatedEntities

us-gaap:CapitalToRiskWeightedAssets
dei:LegalEntity, us-gaap:ConsolidatedEntities

us-gaap:ComprehensiveIncomeNetOfTax

us-gaap:ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest
us-gaap:ConsolidationItems

us-gaap:ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest

us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments
us-gaap:ConsolidationItems
us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments

us-gaap:IncomeTaxExpenseBenefit
us-gaap:ConsolidationItems
us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments

us-gaap:IncomeTaxesPaidNet

us-gaap:InterestExpense

us-gaap:InterestIncomeExpenseNet
us-gaap:ConsolidationItems
us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments

us-gaap:InterestPaidNet

us-gaap:MarketingAndAdvertisingExpense

us-gaap:NetIncomeLoss
us-gaap:ConsolidationItems
us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments

us-gaap:NetIncomeLossAttributableToNoncontrollingInterest

us-gaap:NetIncomeLossAvailableToCommonStockholdersBasic

us-gaap:NetIncomeLossAvailableToCommonStockholdersDiluted

us-gaap:OtherComprehensiveIncomeLossNetOfTax
us-gaap:StatementEquityComponents

us-gaap:ProfitLoss
us-gaap:ConsolidationItems
us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments
us-gaap:StatementEquityComponents

us-gaap:RealizedInvestmentGainsLosses
us-gaap:ProductOrService
us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax

us-gaap:Assets
us-gaap:ConsolidatedEntities

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

us-gaap:LiabilitiesAndStockholdersEquity
us-gaap:ConsolidatedEntities

us-gaap:StockholdersEquity
us-gaap:ConsolidatedEntities

us-gaap:TierOneRiskBasedCapital
dei:LegalEntity, us-gaap:ConsolidatedEntities

us-gaap:CashAndCashEquivalentsAtCarryingValue
us-gaap:ConsolidatedEntities

us-gaap:PropertyPlantAndEquipmentGross
us-gaap:PropertyPlantAndEquipmentByType

us-gaap:AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment

us-gaap:AmortizationOfIntangibleAssets

us-gaap:PropertyPlantAndEquipmentNet

us-gaap:Goodwill
us-gaap:StatementBusinessSegments

us-gaap:IntangibleAssetsNetExcludingGoodwill
us-gaap:FiniteLivedIntangibleAssetsByMajorClass

us-gaap:OperatingLeaseRightOfUseAsset

us-gaap:OtherAssets
us-gaap:ConsolidatedEntities

us-gaap:TimeDepositMaturitiesYearOne

us-gaap:LongTermDebt
us-gaap:LongtermDebtType

us-gaap:MinorityInterest

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearTwo

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearThree

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFour

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFive

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive

us-gaap:StockholdersEquity
us-gaap:ConsolidatedEntities

us-gaap:StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest
us-gaap:StatementEquityComponents

us-gaap:CommonStockValue
us-gaap:ConsolidatedEntities

us-gaap:AdditionalPaidInCapitalCommonStock
us-gaap:ConsolidatedEntities

us-gaap:RetainedEarningsAccumulatedDeficit
us-gaap:ConsolidatedEntities

us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax
us-gaap:ConsolidatedEntities
us-gaap:StatementEquityComponents

us-gaap:TreasuryStockValue
us-gaap:ConsolidatedEntities

us-gaap:MinorityInterest

us-gaap:AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue
us-gaap:StatementEquityComponents

us-gaap:MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders
us-gaap:StatementEquityComponents

us-gaap:NetCashProvidedByUsedInOperatingActivities

us-gaap:NetCashProvidedByUsedInInvestingActivities

us-gaap:NetCashProvidedByUsedInFinancingActivities

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect

us-gaap:NetCashProvidedByUsedInOperatingActivities

us-gaap:NetIncomeLoss
us-gaap:ConsolidationItems
us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments

us-gaap:ProfitLoss
us-gaap:ConsolidationItems
us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments
us-gaap:StatementEquityComponents

us-gaap:ShareBasedCompensation

us-gaap:NetCashProvidedByUsedInInvestingActivities

us-gaap:PaymentsToAcquireProductiveAssets

us-gaap:NetCashProvidedByUsedInFinancingActivities

us-gaap:PaymentsOfDividendsCommonStock

us-gaap:PaymentsForRepurchaseOfCommonStock
us-gaap:DebtInstrument, us-gaap:LongtermDebtType
us-gaap:DebtInstrumentInterestRateStatedPercentage
us-gaap:AwardType
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber
us-gaap:AwardType
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice

us-gaap:DeferredTaxLiabilities

us-gaap:UnrecognizedTaxBenefits
us-gaap:LitigationCase, us-gaap:LitigationStatus
bokf:Allegedtotalofjudgmentagainstnursinghomeoperator

bokf:AverageAssetsForReportingPeriod
us-gaap:ConsolidationItems
us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments

bokf:Capitalizedmortgageservicingrights

bokf:ChangeInAmountReceivableOnUnsettledSecurityTransactions

bokf:ChangeInFairValueDueToLoanRunoff

bokf:Changeinfairvalueofmortgageloancommitments

bokf:Changeinfairvalueofmortgageservicingrightsduetoloanrunoff

bokf:ChangeinprovisionduetochangesinreasonableandsupportableforecastsprimarilyduetoCOVID19pandemic

bokf:Changeinthefairvalueofforwardsalescommitments

bokf:ContributionsToBOKFFoundation

bokf:ConveyanceOfOtherRealEstateOwnedGuaranteedByUsGovt
us-gaap:ConsolidationItems
bokf:CorporateExpenseAllocations
us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments
us-gaap:LitigationCase, us-gaap:LitigationStatus
bokf:Disgorgedfees
us-gaap:ProductOrService
bokf:Feesandcommissionrevenuenotfromcontractswithcustomers
us-gaap:ConsolidationItems
bokf:GainLossonFinancialInstrumentsNet
us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments

bokf:GainOnFairValueOptionSecuritiesNet

bokf:IncreaseInUSGovernmentGuaranteedLoansEligibleForRepurchase

bokf:InterestRevenueOnFairValueOptionSecurities

bokf:InterestincomeInterestbearingcashandcashequivalents

bokf:MortgageBankingCosts

bokf:MortgageBankingRevenue

bokf:MortgageProductionRevenue

bokf:MortgageServicingFees
us-gaap:ConsolidationItems
bokf:NIRexpensefrominternalsources
us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments

bokf:NetChangeInDemandDepositsTransactionDepositsAndSavingsAccounts

bokf:NetChangeInDerivativeMarginAccounts

bokf:Netchangeinunrealizedgainonmortgageloansheldforsale

bokf:Netdirectcontribution
us-gaap:ConsolidationItems
us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments

bokf:Netgainonmortgageloansheldforsale

bokf:NirExpenseFromExternalSources
us-gaap:ConsolidationItems
us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments

bokf:Otherchangestoprovision
us-gaap:FairValueByAssetClass, us-gaap:FairValueByMeasurementFrequency
bokf:RepossessedAssetsExpenseAndNetLosses
us-gaap:ConsolidationItems
bokf:SegmentReportingChangeinFairValueofMortgageServicingRights
us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments

bokf:ServicingAssetsAtFairValueAssumptionsUsedToEstimateFairValueDelinquentLoanServiceCostMinimum

bokf:ServicingAssetsAtFairValueAssumptionsUsedToEstimateFairValueDelinquentLoanSvcCostMaximum

bokf:ServicingAssetsAtFairValueAssumptionsUsedToEstimateFairValueEscrowEarningsRate

bokf:ServicingAssetsAtFairValueAssumptionsUsedToEstimateFairValueForeclosureLoanServiceCostMaximum

bokf:ServicingAssetsAtFairValueAssumptionsUsedToEstimateFairValueForeclosureLoanServiceCostMinimum

bokf:ServicingAssetsAtFairValueAssumptionsUsedToEstimateFairValuePerformingLoanServiceCostMaximum

bokf:ServicingAssetsAtFairValueAssumptionsUsedToEstimateFairValuePerformingLoanServiceCostMinimum

bokf:ServicingAssetsAtFairValueAssumptionsUsedToEstimateFairValuePrepaymentSpeedMaximum

bokf:ServicingAssetsAtFairValueAssumptionsUsedToEstimateFairValuePrepaymentSpeedMinimum

bokf:ServicingAssetsandServicingLiabilitiesatFairValueAssumptionsUsedtoEstimateFairValueDelinquencyRate

bokf:TotalFeesAndCommissions

us-gaap:AccretionAmortizationOfDiscountsAndPremiumsInvestments

us-gaap:AdjustmentsRelatedToTaxWithholdingForShareBasedCompensation
us-gaap:StatementEquityComponents
us-gaap:FairValueByAssetClass, us-gaap:FairValueByMeasurementFrequency
us-gaap:AllowanceForLoanAndLeaseLossesWriteOffs

us-gaap:AssetAtFairValueChangesInFairValueResultingFromChangesInAssumptions

us-gaap:CommonStockDividendsPerShareDeclared
us-gaap:SubsequentEventType

us-gaap:CommunicationsAndInformationTechnology

us-gaap:DebtSecuritiesAvailableForSaleRealizedGain

us-gaap:DebtSecuritiesAvailableForSaleRealizedLossExcludingOtherThanTemporaryImpairment

us-gaap:DebtSecuritiesRealizedGainLoss

us-gaap:DepreciationAmortizationAndAccretionNet
us-gaap:DerivativeInstrumentRisk, us-gaap:HedgingDesignation
us-gaap:DerivativeGainLossOnDerivativeNet
us-gaap:HedgingDesignation

us-gaap:DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsGainLossNet

us-gaap:DividendsCommonStockCash
us-gaap:StatementEquityComponents
us-gaap:FairValueByAssetClass, us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency, us-gaap:IncomeStatementLocation
us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetGainLossIncludedInEarnings1
us-gaap:FairValueByAssetClass, us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency
us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetSales
us-gaap:FairValueByAssetClass, us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency
us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetTransfersIntoLevel3

us-gaap:FederalDepositInsuranceCorporationPremiumExpense

us-gaap:FinancingReceivableAllowanceForCreditLossesRecovery
us-gaap:FinancingReceivablePortfolioSegment

us-gaap:FinancingReceivableAllowanceForCreditLossesWriteOffs
us-gaap:FinancingReceivablePortfolioSegment

us-gaap:FinancingReceivableModificationsPostModificationRecordedInvestment2

us-gaap:FinancingReceivablesImpairedTroubledDebtRestructuringWriteDown

us-gaap:GainLossOnDispositionOfAssets1
us-gaap:FairValueByAssetClass, us-gaap:FairValueByMeasurementFrequency

us-gaap:GainLossOnSaleOfMortgageLoans
us-gaap:ConsolidationItems
us-gaap:GainLossOnSalesOfAssetsAndAssetImpairmentCharges
us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments

us-gaap:GainsLossesOnSalesOfOtherRealEstate

us-gaap:IncreaseDecreaseInOtherAccountsPayableAndAccruedLiabilities

us-gaap:IncreaseDecreaseInOtherOperatingAssets

us-gaap:IncreaseDecreaseInOtherOperatingLiabilities

us-gaap:IncreaseDecreaseInReceivables

us-gaap:IncreaseDecreaseInTimeDeposits

us-gaap:IncreaseDecreaseInTradingSecurities

us-gaap:IncrementalCommonSharesAttributableToParticipatingNonvestedSharesWithNonForfeitableDividendRights

us-gaap:IncrementalCommonSharesAttributableToShareBasedPaymentArrangements

us-gaap:InterestAndDividendIncomeOperating

us-gaap:InterestAndDividendIncomeSecuritiesHeldToMaturity

us-gaap:InterestAndFeeIncomeLoansAndLeasesHeldInPortfolio

us-gaap:InterestAndFeeIncomeLoansHeldForSaleMortgages

us-gaap:InterestExpenseDeposits

us-gaap:InterestExpenseShortTermBorrowings

us-gaap:InterestExpenseSubordinatedNotesAndDebentures

us-gaap:InterestIncomeDebtSecuritiesAvailableForSaleOperating

us-gaap:InterestIncomeDebtSecuritiesTradingOperating

us-gaap:InterestIncomeExpenseAfterProvisionForLoanLoss
us-gaap:ConsolidationItems
us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments

us-gaap:LaborAndRelatedExpense
us-gaap:LitigationCase, us-gaap:LitigationStatus
us-gaap:LitigationSettlementAmountAwardedToOtherParty
us-gaap:LitigationCase, us-gaap:LitigationStatus
us-gaap:LossContingencyDamagesSoughtValue
us-gaap:LitigationCase, us-gaap:LitigationStatus
us-gaap:LossContingencyNumberOfPlaintiffs

us-gaap:MortgageServicingRightsMSRImpairmentRecovery

us-gaap:NoninterestExpense
us-gaap:ConsolidationItems
us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments

us-gaap:NoninterestIncome
us-gaap:ConsolidationItems
us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments

us-gaap:OccupancyNet

us-gaap:OffBalanceSheetCreditLossLiabilityCreditLossExpenseReversal
us-gaap:FinancingReceivablePortfolioSegment

us-gaap:OtherComprehensiveIncomeLossBeforeTax
us-gaap:StatementEquityComponents

us-gaap:OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesBeforeTax
us-gaap:StatementEquityComponents

us-gaap:OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesTax

us-gaap:OtherComprehensiveIncomeLossTax
us-gaap:StatementEquityComponents

us-gaap:OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodBeforeTax
us-gaap:StatementEquityComponents

us-gaap:OtherInterestAndDividendIncome

us-gaap:OtherNoninterestExpense

us-gaap:PaymentsForOriginationOfMortgageLoansHeldForSale

us-gaap:PaymentsForProceedsFromDerivativeInstrumentFinancingActivities

us-gaap:PaymentsForProceedsFromDerivativeInstrumentInvestingActivities

us-gaap:PaymentsForProceedsFromLoansAndLeases

us-gaap:PaymentsToAcquireAvailableForSaleSecuritiesDebt

us-gaap:ProceedsFromIssuanceOfCommonStock

us-gaap:ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities

us-gaap:ProceedsFromMaturitiesPrepaymentsAndCallsOfHeldToMaturitySecurities

us-gaap:ProceedsFromPaymentsForOtherFinancingActivities

us-gaap:ProceedsFromRepaymentsOfDebt

us-gaap:ProceedsFromSaleOfAvailableForSaleSecuritiesDebt

us-gaap:ProceedsFromSaleOfMortgageLoansHeldForSale

us-gaap:ProceedsFromSaleOfProductiveAssets

us-gaap:ProceedsFromSaleOfRestrictedInvestments

us-gaap:ProfessionalFees

us-gaap:ProvisionForLoanLeaseAndOtherLosses
us-gaap:ConsolidationItems
us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments

us-gaap:ProvisionForLoanLossesExpensed
us-gaap:FinancingReceivablePortfolioSegment

us-gaap:RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability

us-gaap:ServicingAssetAtFairValueAdditions

us-gaap:ServicingAssetAtFairValueDisposals

us-gaap:ServicingAssetsAndServicingLiabilitiesAtFairValueAssumptionsUsedToEstimateFairValueDiscountRate
us-gaap:StatementEquityComponents
us-gaap:SharesPaidForTaxWithholdingForShareBasedCompensation
us-gaap:StatementEquityComponents
us-gaap:StockIssuedDuringPeriodSharesRestrictedStockAwardNetOfForfeitures
us-gaap:StatementEquityComponents
us-gaap:StockIssuedDuringPeriodSharesStockOptionsExercised

us-gaap:StockIssuedDuringPeriodValueStockOptionsExercisedNetOfTaxBenefitExpense
us-gaap:StatementEquityComponents
us-gaap:StatementEquityComponents
us-gaap:StockRepurchasedDuringPeriodShares

us-gaap:SuppliesAndPostageExpense
us-gaap:DerivativeInstrumentRisk, us-gaap:HedgingDesignation
us-gaap:TradingGainsLosses
us-gaap:HedgingDesignation

us-gaap:TransferToOtherRealEstate

us-gaap:TreasuryStockValueAcquiredParValueMethod
us-gaap:StatementEquityComponents

us-gaap:UndistributedEarningsLossAllocatedToParticipatingSecuritiesBasic

us-gaap:UndistributedEarningsLossAllocatedToParticipatingSecuritiesDiluted

us-gaap:UnrealizedGainLossOnDerivatives
dei:LegalEntity, us-gaap:ConsolidatedEntities, us-gaap:RelatedPartyTransactionsByRelatedParty
bokf:AggregateLoanCommitmentAndEquityInvestmentToAllAffiliates
us-gaap:RelatedPartyTransactionsByRelatedParty
bokf:AssetsHeldInInvestmentFunds
us-gaap:FairValueByAssetClass, us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency, us-gaap:FinancialInstrument
bokf:AverageYieldsOnComparableShortTermTaxableSecuritiesMaximum

bokf:CapitalConservationBufferCommonEquityTierOnetoRiskWeightedAssets

bokf:CapitalConservationBufferTier1CapitaltoRiskWeightedAssets

bokf:CapitalConservationBufferTotalCapitaltoRiskWeightedAssets
dei:LegalEntity, us-gaap:ConsolidatedEntities
bokf:CommonEquityTier1CapitalRatioRequiredtobeWellCapitalized

bokf:CommonEquityTierOneCapitaltoRiskWeightedAssetsMinimumRequirement
dei:LegalEntity, us-gaap:ConsolidatedEntities
us-gaap:LossContingenciesByNatureOfContingency
bokf:CommonStockClassBSharesOwned
us-gaap:FinancialInstrument
bokf:DebtSecuritiesAvailableforsaleSecuritiesDebtMaturitiesWeightedAverageMaturity

bokf:DebtSecuritiesHeldtomaturitygross
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementBasis
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementBasis, us-gaap:FinancialInstrument
us-gaap:FairValueByMeasurementBasis
us-gaap:FairValueByMeasurementBasis, us-gaap:FinancialInstrument
us-gaap:FinancialInstrument

bokf:DeferredTaxAssetsLeaseLiability

bokf:DeferredTaxAssetsPurchasedLoanDiscount

bokf:DeferredTaxLiabilitiesRightofUseAsset
us-gaap:RetirementPlanName
bokf:DefinedBenefitPlanExpectedFutureBenefitPaymentsTotal
us-gaap:RetirementPlanName
bokf:DefinedBenefitPlanInterestPercentageAccruedOnEmployeeAccountBalancesMaximum
us-gaap:RetirementPlanName
bokf:DefinedBenefitPlanInterestPercentageAccruedOnEmployeeAccountBalancesMinimum
us-gaap:RetirementPlanName
bokf:DefinedBenefitPlanInterestPercentageAccruedOnEmployeeAccountBalancesRatetoAddtoTreasurySecuritiesRate
us-gaap:RetirementPlanName
bokf:DefinedBenefitPlanQuarterlyVariableInterestRateAccruedOnEmployeeAccountBalancesMinimum
us-gaap:RetirementPlanName
bokf:DefinedBenefitPlanQuarterlyVariableInterestRateAccruedonEmployeeAccountBalancesMaximum
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementBasis
bokf:DepositsNoStatedMaturityFairValueDisclosure
us-gaap:FairValueByMeasurementBasis
us-gaap:DerivativeInstrumentRisk, us-gaap:HedgingDesignation
bokf:DerivativeAssetNettingAdjustments
us-gaap:HedgingDesignation
us-gaap:DerivativeInstrumentRisk, us-gaap:HedgingDesignation
bokf:DerivativeAssetsNetFairValueBeforeCashCollateral
us-gaap:HedgingDesignation
us-gaap:DerivativeInstrumentRisk, us-gaap:HedgingDesignation
bokf:DerivativeLiabilityNetFairValueBeforeCashCollateral
us-gaap:HedgingDesignation
us-gaap:DerivativeInstrumentRisk, us-gaap:HedgingDesignation
bokf:DerivativeLiabilityNettingAdjustments
us-gaap:HedgingDesignation
us-gaap:AwardType
bokf:EmployeeServiceSharebasedCompensationNonvestedAwardsCompensationCostsNotYetRecognizedAmounttobeExpensedinNextTwelveMonths
us-gaap:AwardType
bokf:EmployeeServiceSharebasedCompensationNonvestedAwardsCompensationCostsNotYetRecognizedAmounttobeExpensedinYearThree
us-gaap:AwardType
bokf:EmployeeServiceSharebasedCompensationNonvestedAwardsCompensationCostsNotYetRecognizedAmounttobeExpensedinYearTwo

bokf:FairValueOptionSecurities
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementBasis
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementBasis, us-gaap:FinancialInstrument
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency, us-gaap:FinancialInstrument
us-gaap:FairValueByMeasurementBasis
us-gaap:FairValueByMeasurementBasis, us-gaap:FinancialInstrument
us-gaap:FairValueByMeasurementFrequency
us-gaap:FairValueByMeasurementFrequency, us-gaap:FinancialInstrument
us-gaap:FinancialInstrument

bokf:FairValueOptionSecuritiesNetUnrealizedGainOrLoss
us-gaap:FinancialInstrument

bokf:FairValueOptionSecuritiesUnrealizedGainorLoss
us-gaap:FinancialInstrument
us-gaap:Range, us-gaap:FairValueByAssetClass, us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency
bokf:FairValueofImpairedLoansasPercentageofUnpaidPrincipalBalance

bokf:FairValueofResidentialMortgageLoansHeldforSale
us-gaap:ConsolidatedEntities, us-gaap:LongtermDebtType
bokf:FederalHomeLoanBanksLettersOfCreditIssuedToSecurePublicFunds

bokf:FinancingReceivableNonaccrualRelatedAllowance
us-gaap:FinancingReceivablePortfolioSegment
us-gaap:FinancingReceivablePortfolioSegment, us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable

bokf:FinancingReceivableNonaccrualWithAllowance
us-gaap:FinancingReceivablePortfolioSegment
us-gaap:FinancingReceivablePortfolioSegment, us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable
us-gaap:FinancingReceivablePortfolioSegment
bokf:FinancingReceivableTroubledDebtRestructuringSpecificAllowance
us-gaap:FinancingReceivablePortfolioSegment, us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable
us-gaap:FinancialInstrument
bokf:HeldToMaturitySecuritiesDebtMaturitiesWeightedAverageMaturity
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementBasis
bokf:Interestbearingcashandcashequivalents
us-gaap:FairValueByMeasurementBasis
us-gaap:ConsolidatedEntities
bokf:Investmentinbanksubsidiaries
us-gaap:ConsolidatedEntities
bokf:Investmentinnonbanksubsidiaries
dei:LegalEntity, us-gaap:ConsolidatedEntities, us-gaap:RelatedPartyTransactionsByRelatedParty
bokf:LargestAmountOutstandingToSingleAffiliate
dei:LegalEntity, us-gaap:ConsolidatedEntities, us-gaap:RelatedPartyTransactionsByRelatedParty
bokf:LargestLoanCommitmentAndEquityInvestmentToSingleAffiliate
us-gaap:FairValueByAssetClass, us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency
bokf:LiquidityDiscountonMortgageLoansQualifyingforSaletoUSGovtAgencies
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency
us-gaap:FinancingReceivablePortfolioSegment, us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable
bokf:MaximumAmountOfLoansWithBalancesBelowThreshold
dei:LegalEntity, us-gaap:ConsolidatedEntities, us-gaap:RelatedPartyTransactionsByRelatedParty
bokf:MaximumLoanCommitmentsAndEquityInvestmentsToAllAffiliates
dei:LegalEntity, us-gaap:ConsolidatedEntities, us-gaap:RelatedPartyTransactionsByRelatedParty
bokf:MaximumLoanCommitmentsAndEquityInvestmentsToSingleAffiliate
dei:LegalEntity, us-gaap:ConsolidatedEntities, us-gaap:RelatedPartyTransactionsByRelatedParty
bokf:MaximumPercentageOfUnimpairedCapitalOnLoanCommitmentsAndEquityInvestmentsToAllAffiliates
dei:LegalEntity, us-gaap:ConsolidatedEntities, us-gaap:RelatedPartyTransactionsByRelatedParty
bokf:MaximumPercentageOfUnimpairedCapitalOnLoanCommitmentsAndEquityInvestmentsToSingleAffiliate

bokf:MinimumCapitalRequirementIncludingCapitalConservationBufferCommonequityTierOnetoRiskWeightedAssets
dei:LegalEntity, us-gaap:ConsolidatedEntities

bokf:MinimumCapitalRequirementIncludingCapitalConservationBufferTierOnetoRiskWeightedAssets
dei:LegalEntity, us-gaap:ConsolidatedEntities

bokf:MinimumCapitalRequirementIncludingCapitalConservationBufferforTotalCapitaltoRiskWeightedAssets
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us-gaap:FederalFundsPurchasedAndSecuritiesSoldUnderAgreementsToRepurchase
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us-gaap:FederalHomeLoanBankStockAndFederalReserveBankStock

us-gaap:FinancingReceivableAllowanceForCreditLosses
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us-gaap:Restatement
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us-gaap:HeldToMaturitySecuritiesContinuousUnrealizedLossPositionLessThanTwelveMonthsFairValue
us-gaap:FinancialInstrument

us-gaap:HeldToMaturitySecuritiesContinuousUnrealizedLossPositionTwelveMonthsOrLongerFairValue
us-gaap:FinancialInstrument
us-gaap:FinancialInstrument
us-gaap:HeldToMaturitySecuritiesDebtMaturitiesNextRollingTwelveMonthsFairValue
us-gaap:FinancialInstrument
us-gaap:HeldToMaturitySecuritiesDebtMaturitiesRollingAfterTenYearsFairValue
us-gaap:FinancialInstrument
us-gaap:HeldToMaturitySecuritiesDebtMaturitiesRollingYearSixThroughTenFairValue
us-gaap:FinancialInstrument
us-gaap:HeldToMaturitySecuritiesDebtMaturitiesRollingYearTwoThroughFiveFairValue
us-gaap:FinancialInstrument
us-gaap:HeldToMaturitySecuritiesDebtMaturitiesSingleMaturityDateAmortizedCostBasis
us-gaap:FinancialInstrument
us-gaap:HeldToMaturitySecuritiesDebtMaturitiesSingleMaturityDateFairValue
us-gaap:FinancialInstrument
us-gaap:HeldToMaturitySecuritiesDebtMaturitiesWithoutSingleMaturityDateFairValue
us-gaap:FinancialInstrument
us-gaap:HeldToMaturitySecuritiesDebtMaturitiesWithoutSingleMaturityDateNetCarryingAmount

us-gaap:HeldToMaturitySecuritiesFairValue
us-gaap:FinancialInstrument

us-gaap:HeldToMaturitySecuritiesInUnrealizedLossPositionsQualitativeDisclosureNumberOfPositions
us-gaap:FinancialInstrument
us-gaap:FinancialInstrument
us-gaap:HeldtomaturitySecuritiesDebtMaturitiesNextRollingTwelveMonthsAmortizedCost
us-gaap:FinancialInstrument
us-gaap:HeldtomaturitySecuritiesDebtMaturitiesRollingAfterTenYearsAmortizedCost
us-gaap:FinancialInstrument
us-gaap:HeldtomaturitySecuritiesDebtMaturitiesRollingYearSixThroughTenAmortizedCost
us-gaap:FinancialInstrument
us-gaap:HeldtomaturitySecuritiesDebtMaturitiesRollingYearTwoThroughFiveAmortizedCost

us-gaap:InterestBearingDepositsInBanks

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths

us-gaap:LettersOfCreditOutstandingAmount

us-gaap:LoansAndLeasesReceivableAllowance
us-gaap:FairValueByMeasurementBasis
us-gaap:FinancingReceivablePortfolioSegment

us-gaap:LoansAndLeasesReceivableGrossCarryingAmount

us-gaap:LoansAndLeasesReceivableImpairedNonperformingNonaccrualOfInterest
us-gaap:FinancingReceivablePortfolioSegment

us-gaap:LoansAndLeasesReceivableNetReportedAmount
us-gaap:ConsolidatedEntities
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementBasis
us-gaap:FairValueByMeasurementBasis
us-gaap:RelatedPartyTransactionsByRelatedParty
us-gaap:LoansAndLeasesReceivableRelatedParties

us-gaap:LoansReceivableHeldForSaleNetNotPartOfDisposalGroup
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementBasis
us-gaap:FairValueByMeasurementBasis

us-gaap:LoansReceivableWithFixedRatesOfInterest1
us-gaap:FinancingReceivablePortfolioSegment

us-gaap:LoansReceivableWithVariableRatesOfInterest1
us-gaap:FinancingReceivablePortfolioSegment

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalAfterYearFive

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFive

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo
us-gaap:FairValueByAssetClass, us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency, us-gaap:MeasurementInputType, us-gaap:ValuationTechnique
us-gaap:MortgagesHeldForSaleFairValueDisclosure
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency
us-gaap:FairValueByMeasurementFrequency

us-gaap:NoninterestBearingDepositLiabilitiesDomestic

us-gaap:NotesReceivableGross
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:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable, us-gaap:InternalCreditAssessment, us-gaap:LoansInsuredOrGuaranteedByGovernmentAuthorities
us-gaap:FinancialInstrumentPerformanceStatus, us-gaap:FinancingReceivablePortfolioSegment, us-gaap:InternalCreditAssessment
us-gaap:FinancingReceivablePortfolioSegment
us-gaap:FinancingReceivablePortfolioSegment, us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable
us-gaap:FinancingReceivablePortfolioSegment, us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable, us-gaap:LoansInsuredOrGuaranteedByGovernmentAuthorities

us-gaap:OffBalanceSheetCreditLossLiability
us-gaap:FinancingReceivablePortfolioSegment
us-gaap:Restatement
us-gaap:Restatement, us-gaap:FinancingReceivablePortfolioSegment

us-gaap:OperatingLeaseWeightedAverageDiscountRatePercent

us-gaap:OtherBorrowings

us-gaap:OtherLiabilities
us-gaap:ConsolidatedEntities
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementBasis
us-gaap:OtherLiabilitiesFairValueDisclosure
us-gaap:FairValueByMeasurementBasis

us-gaap:OtherRealEstateAndForeclosedAssets

us-gaap:PledgedAssetsSeparatelyReportedSecuritiesPledgedAsCollateralAtFairValue
us-gaap:StatementClassOfStock
us-gaap:PreferredStockLiquidationPreference
us-gaap:StatementClassOfStock
us-gaap:PreferredStockLiquidationPreferenceValue
us-gaap:BalanceSheetLocation
us-gaap:QualifiedAffordableHousingProjectInvestmentsCommitment

us-gaap:RealEstateOwnedValuationAllowance

us-gaap:ReceivablesFromBrokersDealersAndClearingOrganizations
dei:LegalEntity, us-gaap:ConsolidatedEntities, us-gaap:RelatedPartyTransactionsByRelatedParty
us-gaap:RelatedPartyTransactionDueFromToRelatedParty

us-gaap:ServicingAssetAtFairValueAmount
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementBasis
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency
us-gaap:FairValueByMeasurementBasis
us-gaap:FairValueByMeasurementFrequency
us-gaap:AwardType
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber
us-gaap:AwardType
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue
us-gaap:AwardType
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingNumber
us-gaap:AwardType
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingWeightedAverageExercisePrice
us-gaap:AwardType
us-gaap:SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1

us-gaap:SubordinatedDebt
us-gaap:ConsolidatedEntities
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementBasis
us-gaap:FairValueByMeasurementBasis

us-gaap:TierOneLeverageCapital
dei:LegalEntity, us-gaap:ConsolidatedEntities

us-gaap:TierOneLeverageCapitalRequiredForCapitalAdequacyToAverageAssets
dei:LegalEntity, us-gaap:ConsolidatedEntities
dei:LegalEntity, us-gaap:ConsolidatedEntities
us-gaap:TierOneLeverageCapitalRequiredToBeWellCapitalizedToAverageAssets

us-gaap:TierOneLeverageCapitalToAverageAssets
dei:LegalEntity, us-gaap:ConsolidatedEntities

us-gaap:TierOneRiskBasedCapitalRequiredForCapitalAdequacyToRiskWeightedAssets
dei:LegalEntity, us-gaap:ConsolidatedEntities
dei:LegalEntity, us-gaap:ConsolidatedEntities
us-gaap:TierOneRiskBasedCapitalRequiredToBeWellCapitalizedToRiskWeightedAssets

us-gaap:TimeDepositMaturitiesAfterYearFive

us-gaap:TimeDepositMaturitiesYearFive

us-gaap:TimeDepositMaturitiesYearFour

us-gaap:TimeDepositMaturitiesYearThree

us-gaap:TimeDepositMaturitiesYearTwo

us-gaap:TimeDeposits
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementBasis
us-gaap:FairValueByMeasurementBasis

us-gaap:TimeDepositsAtOrAboveFDICInsuranceLimit

us-gaap:TradingSecurities

us-gaap:TradingSecuritiesDebt
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementBasis
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementBasis, us-gaap:FinancialInstrument
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency, us-gaap:FinancialInstrument
us-gaap:FairValueByMeasurementBasis
us-gaap:FairValueByMeasurementBasis, us-gaap:FinancialInstrument
us-gaap:FairValueByMeasurementFrequency
us-gaap:FairValueByMeasurementFrequency, us-gaap:FinancialInstrument
us-gaap:FinancialInstrument

us-gaap:UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestAccrued

us-gaap:UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate

us-gaap:UnusedCommitmentsToExtendCredit

Plots across concepts


IncomeStatement
Other Comprehensive Income Loss Net Of Tax
Expenses
Interest Expense
Balance Sheet
Intangible Assets Net Excluding Goodwill
Assets
Operating Lease Right Of Use Asset
Current Assets
Cash And Cash Equivalents At Carrying Value
NonCurrent Assets
Intangible Assets Net Excluding Goodwill
PropertyPlantAndEquipmentNet
Accumulated Depreciation Depletion And Amortization Property Plant And Equipment
Liabilities
Accounts Payable And Accrued Liabilities Current And Noncurrent
Noncurrent Liabilities
Minority Interest
Stockholders Equity
Common Stock Value
Per Share
Common Stock Dividends Per Share Declared
CashFlow
Net Cash Provided By Used In Financing Activities
NetCashProvidedByUsedInOperatingActivities
Net Cash Provided By Used In Operating Activities
NetCashProvidedByUsedInInvestingActivities
Proceeds From Sale Of Productive Assets
NetCashProvidedByUsedInFinancingActivities
Net Cash Provided By Used In Financing Activities
Shares
Weighted Average Number Of Shares Outstanding Basic
DividendsAndRepurchase
Dividends Common Stock Cash
BanksAndOrInsurance
Interest And Dividend Income Operating
AssetsBanks
Financing Receivable Allowance For Credit Losses
LiabilitiesBanks
Accounts Payable And Accrued Liabilities Current And Noncurrent

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 ███████████▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁0.0050.0050.0050.0050.0050.0050.0050.0050.0050.0050.0050.0040.0040.0040.0040.0040.0040.0040.0040.0040.0040.0040.0040.0040.0040.0040.0040.0040.0040.0040.0040.0040.0040.0040.0040.0040.0040.0040.0040.0040.0040.0040.0040.0040.0040.004
 us-gaap:PreferredStockParOrStatedValuePerShare us-gaap:StatementClassOfStock us-gaap:PreferredStockNANA5e-11NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:SharesIssued us-gaap:StatementEquityComponents us-gaap:CommonStock██████████████████████████████████████▁███▇▇▇▇76.25876.24475.99575.99875.99976.00175.75975.75775.75675.76275.71175.30975.31475.31875.14875.1375.08975.08174.99374.86674.81774.80174.5374.46174.42974.35174.00473.96473.89773.54873.16373.0973.02972.94672.41572.22372.00671.9020.07153371.15471.171.07470.81670.62770.61670.593
 us-gaap:SharesIssued us-gaap:StatementEquityComponents us-gaap:TreasuryStock▆▆▆▅▅▅▅▄▄▄▄████████▇▇▇▇▆▅▅▄▄▄▄▄▄▄▄▄▄▄▄▁▃▃▃▃▃▃▃7.1796.6866.3585.6935.6935.6925.1794.8994.5624.3123.5899.8749.8749.8599.7539.6739.6739.6739.6568.9568.9518.6468.6366.7485.4835.4294.894.6274.6114.4084.3054.3024.294.2584.0884.0083.8623.7850.003383.1482.6382.6352.6082.5362.5362.55
us-gaap:CommonStockSharesIssued ██████▇▇▇▇▇▇▇▇▇▇▇▇▆▆▆▆▆▆▆▆▅▅▅▅▄▄▄▄▃▃▃▃▂▂▂▂▁▁▁▁76.25774376.24416475.99520575.99833875.99919576.00098575.75859775.75700975.75605675.76226875.71149275.30872775.31355975.31808875.14768675.12953575.08915275.08076874.99340774.86642974.81715574.80077274.53036474.46123474.4287374.35139274.00375473.96449673.89689973.54780173.16327573.08976473.02910172.94579872.41534672.22347372.00662871.90209971.53335471.15413771.10044471.0737870.81556370.62711770.61641470.593401
us-gaap:CommonStockSharesOutstanding ██████▇▇▇▇▇▇▇▇▇▇▇▇▆▆▆▆▆▆▆▆▅▅▅▅▄▄▄▄▃▃▃▃▂▂▂▂▁▁▁▁76.25774376.24416475.99520575.99833875.99919576.00098575.75859775.75700975.75605675.76226875.71149275.30872775.31355975.31808875.14768675.12953575.08915275.08076874.99340774.86642974.81715574.80077274.53036474.46123474.4287374.35139274.00375473.96449673.89689973.54780173.16327573.08976473.02910172.94579872.41534672.22347372.00662871.90209971.53335471.15413771.10044471.0737870.81556370.62711770.61641470.593401
us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding ▁█68.81744269.14171NA69.8792969.87746770.130166NA70.60992470.90203371.404388NA64.93435164.93722664.888033NA64.80517264.79313464.783737NA65.15784165.30292665.331428NA67.76248368.21035368.344886NA68.60976568.51137868.436478NA68.27286168.21249768.04018NA68.33498967.74482867.941895NA68.03741968.16948568.176527NA67.76534467.88058767.790049
us-gaap:WeightedAverageNumberOfSharesOutstandingBasic ▁█68.81566669.137375NA69.87786669.87604370.123685NA70.59630770.88706371.38707NA64.90109564.90197564.847334NA64.74282264.72975264.715964NA65.08539265.24588765.296541NA67.66807668.09634168.25478NA68.45586668.35994568.273685NA68.04917967.99382267.81455NA67.966767.47266567.6653NA67.82759167.89848367.901722NA67.62537867.60580767.592315
us-gaap:WeightedAverageNumberOfShareOutstandingBasicAndDiluted ▁█69.30224569.583788NA70.30623370.30760670.513807NA71.03340571.32792871.926041NA65.43884965.44803565.479482NA65.42325865.41627465.457772NA65.8954366.06939266.131166NA68.48637668.91797769.002576NA69.27512169.16272468.899746NA68.7709568.71969468.569475NA68.18317168.15224268.268458NA68.372082NANANANANANA
us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount NANANA0.0192270.022238NANA0.00.00.0NA0.00.00.0NA0.00.00.0NA0.00.00.244019NA0.00.00.078209NA0.00.00.0NA0.00.00.087377NA0.0877490.3664070.356708NA0.773080.7856860.756999NA2.3570750.601361NA
us-gaap:EarningsPerShareBasic █▇▇▇▂▂▅▆▆▅▄▆▅▅▃▄▄▄▁▃▂▁▂▃▃▃▂▃▃▃▃▃▃▄▃▄▄▃▂▃▂▂▂▂▂▂2.42.12.22.190.920.881.56000000000000052.01.931.541.51.791.751.611.111.311.351.350.75999999999999981.131.00.640.88999999999999971.091.151.080.93000000000000061.091.11.111.06000000000000051.11.161.281.21000000000000041.281.431.220.97999999999999951.241.010.950.87000000000000010.940.930.88
us-gaap:EarningsPerShareDiluted █▇▇▇▂▂▅▆▆▅▄▆▅▅▃▄▄▄▂▃▂▁▂▃▃▃▂▃▃▃▃▃▃▄▃▄▄▃▂▃▂▂▂▂▂▂2.42.12.22.190.920.881.56000000000000052.01.931.541.51.791.751.611.111.311.351.350.771.131.00.640.89000000000000011.091.151.080.92999999999999971.091.11.111.04999999999999981.11.161.281.211.271.431.220.981.241.00.940.85999999999999990.940.930.88
us-gaap:TierOneRiskBasedCapitalToRiskWeightedAssets NANA1.1949999999999999e-05NANANA1.1390000000000001e-07NANANA1.0920000000000001e-07NANANA1.205e-07NANANA1.121e-07NANANA1.213e-07NANANA1.333e-07NANANA1.377e-07NANANA1.278e-07NANANA1.3270000000000002e-07NANANANANANANA
 us-gaap:TierOneRiskBasedCapitalToRiskWeightedAssets dei:LegalEntity,us-gaap:ConsolidatedEntities bokf:BOKFNA,srt:SubsidiariesNANA1.166e-05NANANA1.09e-07NANANA1.05e-07NANANA1.134e-07NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:CapitalToRiskWeightedAssets NANA1.382e-05NANANA1.2939999999999998e-07NANANA1.25e-07NANANA1.3539999999999998e-07NANANA1.281e-07NANANA1.33e-07NANANA1.466e-07NANANA1.556e-07NANANA1.5129999999999999e-07NANANA1.649e-07NANANANANANANA
 us-gaap:CapitalToRiskWeightedAssets dei:LegalEntity,us-gaap:ConsolidatedEntities bokf:BOKFNA,srt:SubsidiariesNANA1.289e-05NANANA1.179e-07NANANA1.126e-07NANANA1.227e-07NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
  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
  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:ComprehensiveIncomeNetOfTax ▆▃▅▅▄█▄▆▇▆▆▄▄▃▃▄▄▄▁▃▄▄▂▄▃▄▄▃▅▄▃▃▁▄▄▄▄▅▃▄▄▃171.7831.601124.922148.888103.717288.44881.522177.415239.663179.666198.23390.19990.25833.25436.11184.442101.33294.102-56.66852.37290.324114.086-4.588108.87540.719108.47397.69649.511118.516109.00849.97954.098-34.43871.42770.092110.58575.4116.05432.401102.417106.94965.248NANANANA
us-gaap:ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest ▅▁▅▄▃▄▄▃▄▃▄▄▅▃▄▄▅▄▄▅▅▁▆▅▅▄▆▅▅▄▅▄▄▅▅▅▇▃▅▄█▄0.686-1.7520.4850.058-0.407-0.0950.43-0.3730.217-0.347-0.0790.2890.783-0.215-0.1270.1410.7190.308-0.1170.8350.471-1.5761.4750.9251.0430.2511.2630.4940.8340.4530.9460.324-0.0431.0951.0510.4711.833-0.4220.9110.3582.688-0.008NANANANA
us-gaap:ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest ▆▃▅▅▄█▄▆▇▆▆▄▄▃▃▄▄▄▁▃▄▄▂▄▃▄▄▃▅▄▃▃▁▄▄▄▄▄▃▄▄▃▃▄▅▅172.46629.849125.407148.946103.31288.35381.952177.042239.88179.319198.15490.48891.04133.03935.98484.583102.05194.41-56.78553.20790.795112.51-3.113109.841.762108.72498.95950.005119.35109.46150.92554.422-34.48172.52271.143111.05677.233115.63233.312102.775109.63765.25627.90488.558132.09118.321
us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments █▇▇▇▂▂▅▆▆▅▄▅▅▄▄▄▄▄▁▃▃▁▂▃▄▃▂▃▃▃▃▃▄▄▄▄▅▄▃▄▃▃▂▂▃▂215.603186.69199.847204.64480.08979.284141.039174.254175.36140.215128.498152.207148.485136.295126.712128.228136.571126.76772.405107.06896.76962.41687.318109.944120.903113.47893.823108.005113.959114.544109.24109.523121.311136.155127.909133.631152.61128.713105.3128.465111.052103.51890.20393.22397.690.625
us-gaap:IncomeTaxExpenseBenefit ▇▆▆▇▁▁▄▄▅▄▂▄▄▄█▆▇▅▂▄▄▂▃▄▆▅▃▄▅▅▅▄▆▇▆▆█▆▅▆▅▅▄▄▄▄48.49642.38245.13850.55215.80317.330.25732.39637.5829.9520.12134.66233.3330.94854.34742.43847.70538.10322.49631.95630.49721.42826.24234.12840.6338.38428.24231.87937.2337.50135.31833.46141.42347.09644.29345.77853.14945.5237.39643.00639.35738.75231.09729.93532.04230.283
us-gaap:IncomeTaxesPaidNet █▁▄▇▁▁▂▃▅▁▂▄▃▁▃▄▅▁▄▃▂▁▃▃▅▁▁▂▅▁▃▃▆▁▄▃▇▁▄▃▇▂▄▃▆▁96.1420.85244.20486.5074.6170.8539.44923.1953.8240.89814.91847.7528.0751.54825.7335.31358.0522.60236.78728.4258.6676.00423.87626.41648.4673.2325.57211.4450.1310.05627.58731.06267.5745.95345.0431.92577.9733.76540.94727.6378.6239.26541.25821.03165.2516.011
us-gaap:InterestExpense ▁▁▁▂▂▆▇█▇▇▅▄▄▃▃▃▂▂▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▂▂▂▂▂▂▂▂▃15.58417.81921.7922.90928.2887.57799.608116.111105.38897.97279.90662.36455.61845.67138.90436.96129.97725.20821.53921.47119.65519.22415.52115.02816.08216.84316.95617.07716.53416.47816.87617.53917.88518.59420.94520.04421.69424.63926.5730.36531.71631.4533.49836.25235.48436.796
us-gaap:InterestIncomeExpenseNet ▇▇█▇▇▆▇▇▇▇▇▅▅▄▄▄▃▃▃▂▂▂▂▂▂▁▁▁▁▁▁▁▁▁▂▂▂▂▁▂▂▁▁▂▂▂280.309280.42297.23271.75278.104261.36270.249279.096285.432278.102285.686240.883238.562219.736216.863218.452205.204201.182194.198187.846182.612182.572181.261178.636175.731167.726169.664166.791166.097162.642170.565166.351167.156170.405173.369176.027181.361173.569171.47175.384174.001170.639163.65180.715182.113182.574
us-gaap:InterestPaidNet ▁▁▁▁▂▆▇██▇▆▄▄▃▃▂▂▂▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▂▁▂▁▂▂▃▂▃▂▃▂15.41816.74321.41121.40630.00387.468100.589112.968108.85394.6679.7462.84953.36747.16537.61235.0228.82426.05721.35421.30920.27919.93416.02515.9518.73615.3818.45714.72918.14114.39418.14115.07420.22516.3923.31818.28330.71917.81734.52824.07537.32426.23940.48929.04341.94732.616
us-gaap:MarketingAndAdvertisingExpense ▂▁▃▂▁▅▇▇█▆▇▆▆▄▆▅▆▅▆▅▅▄▇▄▆▄▆▅▅▄▄▄▄▄▅▅▅▃▄▄▃▃▃▃▄▃2.7442.1543.7282.6331.9356.2158.7878.85910.1427.8749.2077.627.6866.017.3177.1057.7386.7177.3446.8396.7035.6968.4165.9227.7655.7487.4986.167.155.8416.025.3555.775.4536.156.0546.7464.3885.8685.284.7774.6244.3774.4264.9453.978
us-gaap:NetIncomeLoss █▇▇▇▂▂▅▇▆▅▅▅▅▅▃▃▄▄▁▃▂▁▂▃▃▃▂▃▃▃▃▃▃▄▃▄▄▃▂▃▂▂▂▂▂▂166.421146.06154.224154.03464.69362.079110.352142.231137.563110.612108.456117.256114.372105.56272.49285.64988.14788.35650.02674.27765.80142.56459.60174.89179.2374.84364.31875.63275.89576.5972.97675.73879.93187.96482.56587.38297.62883.61566.99385.10169.00764.77458.83264.26763.52260.133
us-gaap:NetIncomeLossAttributableToNoncontrollingInterest █▁▇▆▅▅▇▅▆▅▆▇█▅▅▆█▇▅█▇0.686-1.7520.4850.058-0.407-0.0950.43-0.3730.217-0.347-0.0790.2890.783-0.215-0.1270.1410.7190.308-0.1170.8350.471NANANANANANANANANA0.9460.324-0.0431.0951.0510.4711.833-0.4220.9110.3582.688-0.0080.274-0.9792.0360.209
us-gaap:NetIncomeLossAvailableToCommonStockholdersBasic █▇▇▇▂▂▅▇▆▅▅▅▅▅▃▃▄▄▁▃▂▁▂▃▃▃▂▃▃▃▃▃▃▄▃▄▄▃▂▃▃▂▂▂▂165.251145.123153.29153.09664.29661.736109.678141.356136.713109.784107.659116.293113.416104.5471.74884.76187.22187.35349.41873.36164.9842.02658.8773.99778.28674.02963.55874.73475.01175.89272.21174.93979.07786.99382.01887.10496.65182.87566.47984.42168.44864.31358.45263.83163.088NA
us-gaap:NetIncomeLossAvailableToCommonStockholdersDiluted █▇▇▇▂▂▅▇▆▅▅▅▅▅▃▃▄▄▁▃▂▁▂▃▃▃▂▃▃▃▃▃▃▄▃▄▄▃▂▃▃▂▂▂▂165.252145.123153.29153.09664.29661.736109.677141.357136.713109.784107.659116.294113.417104.5471.74884.76287.22287.35349.41873.36264.9842.02658.87173.99878.28774.0363.55974.73575.01275.89372.21274.94179.07986.99882.01887.10596.65482.87766.4884.42368.4564.31458.45263.83263.089NA
us-gaap:OtherComprehensiveIncomeLossNetOfTax ▃▁▃▃▄█▃▄▅▅▅▃▃▂▃▃▄▃▁▃▄▅▂▄▃▄▄▃▄▄▃▃▁▃▃▄▃▄▃▄5.359-114.459-29.302-5.14639.024226.369-28.8335.184102.169.05489.777-27.057-24.114-72.308-36.381-1.20713.1855.746-106.694-21.90524.52371.522-64.18933.984-38.51133.6333.378-26.12142.62132.418-22.997-21.64-114.369-16.537-12.47323.203-22.22832.439-34.59217.316NANANANANANA
us-gaap:ProfitLoss █▇▇▇▂▂▅▇▆▅▅▅▅▅▃▃▄▄▁▃▂▁▂▃▃▃▂▃▃▃▃▃▃▄▃▄▄▃▂▃▃▂▂▂▂▂167.107144.308154.709154.09264.28661.984110.782141.858137.78110.265108.377117.545115.155105.34772.36585.7988.86688.66449.90975.11266.27240.98861.07675.81680.27375.09465.58176.12676.72977.04373.92276.06279.88889.05983.61687.85399.46183.19367.90485.45971.69564.76659.10663.28865.55860.342
us-gaap:RealizedInvestmentGainsLosses ▆▅▆▅▆▄▅▅▅▅▄▅▅▄▅▅▅▅▅▅▅▅▅▅▅▅▅▄▅▅▅▁▆▇▇██▆▄▄▇▄▅17.87610.58711.7332.0312.928-10.742-2.0733.221.308-1.872-4.004-1.0511.063-5.5930.898-2.4212.0432.308-0.6523.8765.7524.0352.6110.1186.5275.9562.821-3.480.8191.2024.669-49.86522.11135.67130.80344.77141.80918.313-3.403-9.79726.511-9.7220.892NANA2.545
 us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:ProductOrService bokf:Automatedservicechargeandotherdepositfeerevenue▁▂▂▁▂▅▅▆▆█▇▆▆▆1.091.1981.2261.0581.2251.631.5881.7711.7912.0441.8941.7261.6951.723NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:ProductOrService bokf:Brokerageandtradingrevenue▇██▇▆▆▅▆▆▅▅▁▁▁11.88112.42512.18211.71511.01411.34410.45111.30311.10410.79110.368.3318.0558.286NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:ProductOrService bokf:Checkcardfeerevenue█▄▄▅▂▃▅▆▅▂▇▃▄▁6.0295.3275.4395.5655.1225.2295.5665.7215.5875.1565.7915.2545.3434.918NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:ProductOrService bokf:Commercialaccountservicechargerevenue█▆▄▄▃▃▃▂▂▅▄▁▃▃13.78513.00412.17112.212.05611.99311.91711.61311.59212.78312.23611.24411.88411.908NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:ProductOrService bokf:Corporatecardrevenue█▆▆▅▄▄▄▃▂▁▁▁▁▁1.1890.8830.8550.6860.5030.5360.4950.3340.1970.080.00.00.00.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:ProductOrService bokf:Corporatetrustrevenue▁▂▂▄▄█▇███▇▇▅▆3.4353.7893.7294.6134.6046.3625.8996.2056.336.2015.9755.7414.9355.641NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:ProductOrService bokf:Feesandcommissionsrevenue▅▂▂▂▁▄▅▅▅▄▄█▂▂110.628103.539103.142102.66899.766107.714109.861111.59110.432107.172109.144119.168103.702102.243NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:ProductOrService bokf:Institutionaltrustretirementplanservicesrevenue█▇█▂▁▄▃▁▂▂▁▂▂▃12.82812.6112.74311.0310.72311.75711.43310.7411.07211.10710.85511.05611.03911.45NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:ProductOrService bokf:Insurancebrokeragerevenue▆▆▅▆▆▇▆▆▇█▇▁▁▁2.9962.9162.6363.1243.1533.7893.0692.8623.8224.1083.6430.170.2290.155NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:ProductOrService bokf:Investmentbankingrevenue▆▇█▇▆▃▃▅▄▂▁▅▃▄4.3574.7685.384.8044.4673.2123.3734.2373.3812.6612.273.8363.2443.532NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:ProductOrService bokf:Investmentmanagementservicesandother▂▁▁▃▃▆█▇▇▇▆▅▅▄3.4132.9463.0284.1584.2495.696.9546.4386.4076.4765.5575.1895.1674.641NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:ProductOrService bokf:Merchantservicesrevenue█▃▁▆▃▄▃▃▃▃▃▂▂▂3.4522.2811.6323.0382.2432.3192.272.2172.2372.0622.0392.0091.9371.819NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:ProductOrService bokf:Overdraftfeerevenue▃▂▃▃▁▅▆█▇▆██▇▇4.9574.685.5075.4633.6437.2788.269.7329.1048.269.4799.5418.9058.612NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:ProductOrService bokf:Personaltrustrevenue▃▂▂▁▂▁▂▁▂▁▂█▁▁25.15621.97722.29920.1321.68120.64920.73520.23821.21619.57421.27135.52820.55820.1NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:ProductOrService bokf:Retailbrokeragerevenue▃▃▂▂▁▂▂▂▂▂█▃▃▃4.5284.7414.1663.7873.3944.3434.0094.2043.9014.0228.094.4954.8114.754NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:ProductOrService bokf:TransFundEFTnetworkrevenue█▄▄▆█▃▆▅▅▁▁▄▃▃20.28219.26619.40919.74120.19419.02619.78319.46419.48118.59618.62519.38719.03819.171NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:ProductOrService bokf:Transactioncardrevenue█▄▃▆▅▃▄▃▃▁▁▂▂▂24.92322.4321.89623.46522.9421.88122.54822.01521.91520.73820.66421.39620.97520.99NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:ProductOrService us-gaap:DepositAccount▅▃▃▃▁▅▆▇▇▇█▆▇▆25.86124.20924.34324.28622.04626.1327.33128.83728.07428.24329.427.76527.83427.161NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:ProductOrService us-gaap:FiduciaryAndTrust▃▂▂▁▂▃▃▂▃▂▂█▂▂44.83241.32241.79939.93141.25744.45845.02143.62145.02543.35843.65857.51441.69241.832NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:ProductOrService us-gaap:FinancialServiceOther▂▂▂▃▁▄▅█▅▄▆▅▄▄3.1313.1532.9223.2712.5093.9014.515.8144.3144.0425.0624.1624.1573.974NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
  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 ██████▆▇▆▆▅▄▄▄▄▄▄▄▄▄▃▃▃▃▃▃▃▃▂▂▂▂▂▂▂▂▂▂▂▁▁▁▁▁▁▁47154.37547442.51346671.08846067.22445819.87447119.16242172.02143127.20541893.07339882.96238020.50433289.86433833.10733361.49232272.1633005.51532263.53232628.93232772.28132779.23131970.4531413.94531476.12830566.90530725.56330299.97829089.69829105.0227843.7727364.71427015.43227166.36727808.227447.15828148.63127117.64125576.04625884.17325493.94625066.26524238.18223701.02323941.60324385.95223736.72823501.976
us-gaap:Liabilities ██████▆▇▆▆▅▄▄▄▄▄▄▄▄▄▃▃▃▃▃▃▃▃▂▂▂▂▂▂▂▂▂▂▂▁▁▁▁▁▁▁41799.82442180.16941379.52740841.11540715.45142085.00237308.10238289.5437174.59835351.25333577.45929664.10430257.06229844.1528753.82629491.07628813.98729258.03829465.92429346.8228567.71228057.6828208.48927150.74327312.7326909.72625753.49225827.70824596.12424220.11523960.45924139.39324815.31824399.26625154.9524105.16622653.32523013.77222707.29422298.71521546.00821103.33521397.72521861.96421286.70121169.259
us-gaap:LiabilitiesAndStockholdersEquity ██████▆▇▆▆▅▄▄▄▄▄▄▄▄▄▃▃▃▃▃▃▃▃▂▂▂▂▂▂▂▂▂▂▂▁▁▁▁▁▁▁47154.37547442.51346671.08846067.22445819.87447119.16242172.02143127.20541893.07339882.96238020.50433289.86433833.10733361.49232272.1633005.51532263.53232628.93232772.28132779.23131970.4531413.94531476.12830566.90530725.56330299.97829089.69829105.0227843.7727364.71427015.43227166.36727808.227447.15828148.63127117.64125576.04625884.17325493.94625066.26524238.18223701.02323941.60324385.95223736.72823501.976
us-gaap:StockholdersEquity ████▇▇▇▇▇▆▆▄▄▄▄▄▄▃▃▄▃▃▃▃▃▃▃▃▃▃▃▃▂▃▂▃▂▂▂▂▂▂▁▁▁▁5332.9775239.4625266.2665218.7875096.9955026.2484855.7954829.0164709.4384522.8734432.1093615.0323553.4313495.0293495.3673488.8143422.4693341.7443274.8543398.3113368.8333321.5553230.5563377.2263375.6323357.1613302.1793243.0933212.5173109.9253020.0492991.2442957.6373011.9582957.862975.6572885.9342834.4192750.4682732.5922667.7172576.1332521.7262503.652428.7382312.443
us-gaap:TierOneRiskBasedCapital NANA3881.912NANANA3608.821NANANA3356.524NANANA3074.981NANANA2834.532NANANA2842.193NANANA2838.129NANANA2668.981NANANA2430.671NANANA2295.061NANANANANANANA
 us-gaap:TierOneRiskBasedCapital dei:LegalEntity,us-gaap:ConsolidatedEntities bokf:BOKFNA,srt:SubsidiariesNANA3756.95NANANA3414.446NANANA2894.119NANANA2870.694NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
  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 ▃▄▃▂▃▂▃▃▃▃▃▃▄▇▇▇██▇█▇▇█▇▇▇▇▇▃▃▃▃▃▂▃▁▁▁▂▂▃▂▃▃▂▂1259.4551419.1961180.5731006.3711247.772973.0771258.8211226.5881335.4911282.7011143.4241246.2471458.82599.4332317.0542473.9822640.4182767.2152537.4972616.8942406.5512312.6722643.5992319.3732562.6492610.672475.8422565.5591347.8741354.0061087.2131160.9851078.385945.6171286.239615.494639.263706.306986.365972.8811110.761808.391269.4041195.902852.526931.985
  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:PropertyPlantAndEquipmentGross NANA843.041NANANA779.05NANANA645.017NANANA755.824NANANA733.16NANANA674.87NANANA617.707NANANA594.698NANANA565.343NANANA530.622NANANA501.912NANANA
 us-gaap:PropertyPlantAndEquipmentGross us-gaap:PropertyPlantAndEquipmentByType us-gaap:AssetUnderConstructionNANA46.949NANANA53.498NANANA27.514NANANA23.348NANANA36.743NANANA39.886NANANA21.805NANANA31.027NANANA30.408NANANANANANANANANANANA
 us-gaap:PropertyPlantAndEquipmentGross us-gaap:PropertyPlantAndEquipmentByType us-gaap:BuildingAndBuildingImprovementsNANA440.528NANANA421.952NANANA266.733NANANA249.139NANANA250.311NANANA225.181NANANA225.008NANANA221.326NANANA244.524NANANA232.44NANANA226.234NANANA
 us-gaap:PropertyPlantAndEquipmentGross us-gaap:PropertyPlantAndEquipmentByType us-gaap:ComputerSoftwareIntangibleAssetNANA120.444NANANA98.487NANANA150.207NANANA188.826NANANA158.155NANANA142.476NANANA120.01NANANA103.473NANANA89.183NANANANANANANANANANANA
 us-gaap:PropertyPlantAndEquipmentGross us-gaap:PropertyPlantAndEquipmentByType us-gaap:FurnitureAndFixturesNANA165.344NANANA135.153NANANA129.988NANANA223.163NANANA217.399NANANA194.715NANANA179.513NANANA163.013NANANA158.02NANANA141.743NANANA133.732NANANA
 us-gaap:PropertyPlantAndEquipmentGross us-gaap:PropertyPlantAndEquipmentByType us-gaap:LandNANA69.776NANANA69.96NANANA70.575NANANA71.348NANANA70.552NANANA72.612NANANA71.371NANANA75.859NANANA73.616NANANA73.638NANANA72.643NANANA
us-gaap:AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment NANA291.733NANANA243.531NANANA314.984NANANA438.489NANANA407.311NANANA368.38NANANA343.874NANANA316.849NANANA299.423NANANA267.887NANANA236.447NANANA
us-gaap:AmortizationOfIntangibleAssets ▇▇█████████▃▂▂▂▃▃▃▂▂▄▂▂▂▂▂▂▂▂▁▁▁▁▁▂▁▁▁▂▂▂▂▂▂▂▂4.5784.8075.0885.0715.195.0945.2255.0645.1385.1915.3311.6031.3861.31.431.7441.8031.8021.5581.5212.6241.1591.091.0891.091.091.11.10.9490.8160.8420.8350.8750.8761.0650.7420.5450.5750.8950.8960.8960.8961.3651.3241.3231.324
us-gaap:PropertyPlantAndEquipmentNet ███████▇▆▆▃▃▂▂▂▂▂▃▃▂▂▂▂▂▂▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁556.4555.455551.308542.625550.23546.093535.519516.597468.368468.293330.033327.129320.81314.347317.335320.06321.038325.546325.849318.196315.199311.161306.49294.669284.238279.075273.833275.718280.286279.257277.849275.347271.191270.13265.92259.195261.508263.579262.735264.325265.057265.532265.465267.189277.225279.152
us-gaap:Goodwill ███████████▂▂▂▂▂▂▂▂▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁1048.0911048.0911048.0911048.0911048.0911048.0911048.0911048.0911048.0911048.0911049.263447.43453.093447.43447.43446.697446.697445.738448.899382.739382.739383.789385.461385.461385.454377.78377.78377.78377.78364.57359.759359.759359.759359.759361.979358.962335.601335.601335.601335.601335.601335.601335.601335.601335.601335.601
us-gaap:IntangibleAssetsNetExcludingGoodwill ▆▇▇▇▇▇▇▇▇██▂▂▂▂▃▃▃▃▃▃▃▃▃▃▂▂▂▃▂▂▂▂▂▂▂▁▁▁▁▁▁▁▁▁▁105.694110.585113.436118.524123.595121.807125.271124.32124.473129.482134.84933.3728.27329.65828.65839.01340.75542.55646.93141.97743.37244.94443.90944.99946.06133.28634.37635.47636.57631.56124.56425.40726.24227.11728.19233.1969.0989.64510.21911.11512.0112.90613.80315.16815.99117.315
us-gaap:OperatingLeaseRightOfUseAsset NANA166.0NANANA180.0180.0139.0137.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
us-gaap:TimeDepositMaturitiesYearOne NANA1500.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
  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 NANA3821.361NANANA8621.328NANANA7418.714NANANA5854.537NANANA5717.302NANANA6277.866NANANA3726.277NANANA3069.69NANANA3053.854NANANA2769.748NANANA3516.059NANANA
 us-gaap:LongTermDebt us-gaap:LongtermDebtType bokf:GnmaRepurchaseLiabilityNANA19.5NANANA15.417NANANA15.552NANANA19.947NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:LongTermDebt us-gaap:LongtermDebtType bokf:OtherBorrowingsNANA1882.97NANANA4527.055NANANA6124.39NANANA5134.897NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:LongTermDebt us-gaap:LongtermDebtType bokf:PaycheckProtectionProgramLiquidityFacilityNANA1635.963NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:LongTermDebt us-gaap:LongtermDebtType us-gaap:FederalFundsPurchasedNANA769.365NANANA3390.528NANANA402.45NANANA58.628NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:LongTermDebt us-gaap:LongtermDebtType us-gaap:FederalHomeLoanBankAdvancesNANA200.0NANANA4500.0NANANA6100.0NANANA5100.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:LongTermDebt us-gaap:LongtermDebtType us-gaap:NotesPayableOtherPayablesNANA27.507NANANA11.638NANANA8.838NANANA14.95NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:LongTermDebt us-gaap:LongtermDebtType us-gaap:SecuritiesSoldUnderAgreementsToRepurchaseNANA893.021NANANA427.822NANANA615.961NANANA516.335NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:LongTermDebt us-gaap:LongtermDebtType us-gaap:SubordinatedDebtNANA276.005NANANA275.923NANANA275.913NANANA144.677NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:MinorityInterest ▄▄▅▁▁▁▁▁▁▁▂▂▄▄▄▅▅▆▆▇▇▇███▇▇▇▇▇▇▇▇▇▇██▇▇▇▅▄▄▄▄▄21.57422.88225.2957.3227.4287.9128.1248.6499.0378.83610.93610.72822.61422.31322.96725.62527.07629.1531.50334.133.90534.7137.08338.93637.20133.09134.02734.21935.12934.67434.92435.7335.24535.93435.82136.81836.78735.98236.18434.95824.45721.55522.15220.33821.28920.274
us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearTwo NANA21.2NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearThree NANA20.1NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFour NANA19.6NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFive NANA18.9NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive NANA116.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
  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 ████▇▇▇▇▇▆▆▄▄▄▄▄▄▃▃▄▃▃▃▃▃▃▃▃▃▃▃▃▂▃▂▃▂▂▂▂▂▂▁▁▁▁5332.9775239.4625266.2665218.7875096.9955026.2484855.7954829.0164709.4384522.8734432.1093615.0323553.4313495.0293495.3673488.8143422.4693341.7443274.8543398.3113368.8333321.5553230.5563377.2263375.6323357.1613302.1793243.0933212.5173109.9253020.0492991.2442957.6373011.9582957.862975.6572885.9342834.4192750.4682732.5922667.7172576.1332521.7262503.652428.7382312.443
us-gaap:StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest ████▇▇▇▇▇▆▆▄▄▄▄▄▄▃▃▄▃▃▃▄▄▃▃▃▃▃▃▃▃▃▃▃▂▂▂▂▂▂▁▁▁▁5354.5515262.3445291.5615226.1095104.4235034.164863.9194837.6654718.4754531.7094443.0453625.763576.0453517.3423518.3343514.4393449.5453370.8943306.3573432.4113402.7383356.2653267.6393416.1623412.8333390.2523336.2063277.3123247.6463144.5993054.9733026.9742992.8823047.8922993.6813012.4752922.7212870.4012786.6522767.552692.1742597.6882543.8782523.9882450.0272332.717
us-gaap:CommonStockValue ███████████▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁0.0050.0050.0050.0050.0050.0050.0050.0050.0050.0050.0050.0040.0040.0040.0040.0040.0040.0040.0040.0040.0040.0040.0040.0040.0040.0040.0040.0040.0040.0040.0040.0040.0040.0040.0040.0040.0040.0040.0040.0040.0040.0040.0040.0040.0040.004
us-gaap:AdditionalPaidInCapitalCommonStock ███████████▄▄▄▄▄▄▄▄▄▄▄▃▃▃▃▃▃▃▃▃▂▂▂▂▂▂▂▂▁▁▁▁▁▁▁1373.1011371.7351368.0621366.461357.7061354.8261350.9951346.731343.0821340.3231334.031044.431040.2021041.2421035.8951028.4891017.4951009.361006.535995.68990.106987.046982.009973.824970.054959.65954.644948.305938.665913.642898.586890.433884.238876.368859.278849.39836.065829.991818.817799.272794.292790.852782.805772.194769.928764.863
us-gaap:RetainedEarningsAccumulatedDeficit ██▇▇▇▇▇▆▆▆▆▆▅▅▅▅▅▄▄▄▄▄▄▄▄▄▃▃▃▃▃▃▃▃▂▂▂▂▂▂▂▁▁▁▁▁4214.134083.5433973.6753856.0463737.8623709.0193729.7783655.593548.9073447.0763369.6543297.0833212.6533127.5753048.4872999.0052942.4472883.0422823.3342801.9312755.7662718.3012704.1212673.2922627.252576.9532530.8372495.3382447.1182398.6362349.4282303.6882253.812199.7222137.5412148.2922086.5652014.5991953.3321908.5741842.0221791.6981743.881701.9091654.5161607.828
us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax ▆▆███▇▅▅▄▃▂▁▁▂▃▃▃▃▃▄▅▄▃▄▄▄▄▃▄▃▃▃▃▅▅▅▅▅▅▅▅▅▅▅▅▄226.768221.409335.868365.17370.316331.292104.923133.75398.569-3.531-72.585-162.362-135.305-111.191-36.1746.7577.964-5.221-10.96795.727117.63293.10921.58785.77651.79290.30356.67323.29549.4166.795-25.623-2.62619.014133.383149.92162.393139.19161.418128.979163.571146.255108.313107.839139.041113.77147.657
us-gaap:TreasuryStockValue ▇▇▇▆▆▆▆▅▅▅▄████████▇▇▇▇▆▅▅▅▅▅▅▄▄▄▄▄▄▄▄▁▄▄▄▄▄▄▄481.027437.23411.344368.894368.894368.894329.906307.062281.125261.0198.995564.123564.123562.601552.845545.441545.441545.441544.052495.031494.675476.905477.165355.67273.468269.749239.979223.849222.686209.152202.346200.255199.429197.519188.883184.422175.89171.593-150.664138.829114.856114.734112.802109.498109.481107.909
us-gaap:MinorityInterest ▄▄▅▁▁▁▁▁▁▁▂▂▄▄▄▅▅▆▆▇▇▇███▇▇▇▇▇▇▇▇▇▇██▇▇▇▅▄▄▄▄▄21.57422.88225.2957.3227.4287.9128.1248.6499.0378.83610.93610.72822.61422.31322.96725.62527.07629.1531.50334.133.90534.7137.08338.93637.20133.09134.02734.21935.12934.67434.92435.7335.24535.93435.82136.81836.78735.98236.18434.95824.45721.55522.15220.33821.28920.274
us-gaap:AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue ▄▄▄▆▄▄▄▄▄▅▃▄▃▄▅▅▅▄▄▄▄▄▄▄▄▄▃▁█▄▄▄▄▃▄▄▄▄▄▄1.3662.7241.5138.7542.883.2453.9243.4712.7355.414-1.7464.094-1.1923.0736.2128.4077.381.6032.9021.8393.72.034.2762.8853.0571.865-2.135-9.96718.9192.8632.5323.182.108-0.7511.6961.5312.7992.0042.2652.328NANANANANANA
us-gaap:MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders ▃▂█▂▂▂▃▂▂▃▆▆▂▂▃▃▃▃▃▂▃▃▃▂▃▃▃▃▂▃▃▂▃▂▂▁▃▂▂▆▂▂▃▂▂▃1.9940.66116.7720.1640.0770.1170.9550.0150.0161.7539.71312.1750.4820.4392.5311.5922.7932.6612.480.641.2760.7973.328-0.812.4331.1871.4551.4040.3790.7031.752-0.1612.61-0.982-2.048-3.7011.028-0.220.31510.1430.23-0.6051.540.028-1.4390.922
  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 ▃▃▃▃█▁▅▃▅▂▄▅▃▄▄▃▅▄▅▃▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▃▄▄▄▄▄-268.889-218.877-776.783-425.9332529.262-1742.802582.839-379.479428.947-1105.986-162.598547.133-788.204-148.337392.131-405.562397.093-168.731398.387-676.892179.8135.238123.295260.74485.819-174.848-13.459-6.843-76.70260.374167.356296.14133.405239.418143.20557.47974.281316.885175.30333.932-239.79358.343234.438115.09442.159-26.513
us-gaap:NetCashProvidedByUsedInInvestingActivities █▆▇▆▃▁▆▅▁▅▄▅▄▅▇▅▆▇▆▆▅▆▄▅▅▄▅▅▅▆▆▇▅▆▅▂▆▄▄▄▆▄▆▅▅▆1000.924-22.064415.729152.438-1109.554-1917.448235.12-403.757-1952.083-203.017-771.417-172.084-683.237-180.893406.532-333.686-19.389686.09924.993117.89-459.8330.94-777.671-144.898-443.467-635.268-191.726-70.185-189.18217.073-27.949622.91-470.839312.907-438.737-1387.57291.013-833.053-597.869-626.723215.727-555.279312.872-358.644-142.572231.005
us-gaap:NetCashProvidedByUsedInFinancingActivities ▁▄▄▃▁█▂▄▅▅▄▂▃▄▁▄▂▂▂▄▃▂▄▂▃▄▃▅▃▃▂▁▄▁▄▅▂▃▃▃▃▂▂▄▃▂-891.776479.564535.25632.094-1145.0133374.506-785.726674.3331575.9261448.28831.192-587.602330.808611.609-955.591572.812-504.501-287.65-502.777769.345373.896-367.105978.602-359.122309.627944.944115.4681294.713259.752189.346-213.179-836.451570.202-892.947966.5771306.322-432.337236.109436.05454.911326.434-264.078-473.808586.92620.954-193.723
us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect ▃█▇▂█▁▅▃▅▆-159.741238.623174.202-241.401274.695-285.74432.233-108.90352.79139.277NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
  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 ▃▃▃▃█▁▅▃▅▂▄▅▃▄▄▃▅▄▅▃▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▃▄▄▄▄▄-268.889-218.877-776.783-425.9332529.262-1742.802582.839-379.479428.947-1105.986-162.598547.133-788.204-148.337392.131-405.562397.093-168.731398.387-676.892179.8135.238123.295260.74485.819-174.848-13.459-6.843-76.70260.374167.356296.14133.405239.418143.20557.47974.281316.885175.30333.932-239.79358.343234.438115.09442.159-26.513
us-gaap:NetIncomeLoss █▇▇▇▂▂▅▇▆▅▅▅▅▅▃▃▄▄▁▃▂▁▂▃▃▃▂▃▃▃▃▃▃▄▃▄▄▃▂▃▂▂▂▂▂▂166.421146.06154.224154.03464.69362.079110.352142.231137.563110.612108.456117.256114.372105.56272.49285.64988.14788.35650.02674.27765.80142.56459.60174.89179.2374.84364.31875.63275.89576.5972.97675.73879.93187.96482.56587.38297.62883.61566.99385.10169.00764.77458.83264.26763.52260.133
us-gaap:ProfitLoss █▇▇▇▂▂▅▇▆▅▅▅▅▅▃▃▄▄▁▃▂▁▂▃▃▃▂▃▃▃▃▃▃▄▃▄▄▃▂▃▃▂▂▂▂▂167.107144.308154.709154.09264.28661.984110.782141.858137.78110.265108.377117.545115.155105.34772.36585.7988.86688.66449.90975.11266.27240.98861.07675.81680.27375.09465.58176.12676.72977.04373.92276.06279.88889.05983.61687.85399.46183.19367.90485.45971.69564.76659.10663.28865.55860.342
us-gaap:ShareBasedCompensation ▃▄▃█▄▄▅▅▄▆▁▅▂▄▆█▇▃▄▄▅▄▅▄▄▄▁▆▅▄▄▄▄▂▃▃▄▄▄▄▄▄▄▄▄▄1.3662.7241.5138.7542.883.2453.9243.4712.7355.414-1.7464.094-1.1923.0736.2128.4077.381.6032.9021.8393.72.034.2762.8853.0571.865-2.1355.1053.8472.8632.5323.182.108-0.7511.6961.5312.7992.0042.2652.3282.1882.6151.9291.8721.8862.473
  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 █▆▇▆▃▁▆▅▁▅▄▅▄▅▇▅▆▇▆▆▅▆▄▅▅▄▅▅▅▆▆▇▅▆▅▂▆▄▄▄▆▄▆▅▅▆1000.924-22.064415.729152.438-1109.554-1917.448235.12-403.757-1952.083-203.017-771.417-172.084-683.237-180.893406.532-333.686-19.389686.09924.993117.89-459.8330.94-777.671-144.898-443.467-635.268-191.726-70.185-189.18217.073-27.949622.91-470.839312.907-438.737-1387.57291.013-833.053-597.869-626.723215.727-555.279312.872-358.644-142.572231.005
us-gaap:PaymentsToAcquireProductiveAssets ▅▅▁█▇▆▆▅▆▆▆▆▅▅▆▅▅▅▅▅▅▆▅▅▅▆▆▆▅▅▆▅▅▆▅▅▅▅▅▅▅▅▅▆▅▅31.96763.11-866.106590.425297.03119.78576.00957.719134.219116.69294.635128.55862.10159.78879.84664.57543.46362.89940.53952.02231.34875.89361.8659.09235.875108.579113.721136.81935.83320.94591.7535.28941.63873.61217.72436.0419.19231.799-109.05232.87312.5417.443-87.14595.77415.7969.17
  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 ▁▄▄▃▁█▂▄▅▅▄▂▃▄▁▄▂▂▂▄▃▂▄▂▃▄▃▅▃▃▂▁▄▁▄▅▂▃▃▃▃▂▂▄▃▂-891.776479.564535.25632.094-1145.0133374.506-785.726674.3331575.9261448.28831.192-587.602330.808611.609-955.591572.812-504.501-287.65-502.777769.345373.896-367.105978.602-359.122309.627944.944115.4681294.713259.752189.346-213.179-836.451570.202-892.947966.5771306.322-432.337236.109436.05454.911326.434-264.078-473.808586.92620.954-193.723
us-gaap:PaymentsOfDividendsCommonStock ▃▃▃▃▃▃▃▃▃▃▃▃▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂█▂▂▂▂▁▁▁▁▁▁▁35.83436.19236.59535.8535.8536.14236.16435.54835.73236.05235.88532.82629.29429.18329.5629.09128.74228.64828.62328.11228.33628.38428.77228.84928.93328.72728.81927.41227.41327.38227.23625.8625.84325.78393.31625.65625.66222.34822.23518.54918.68316.95616.86116.55816.83416.304
us-gaap:PaymentsForRepurchaseOfCommonStock ▄▂▃▁▁▃▂▃▂▅▄▁▁▁▁▁▁▁▄▁▂▁█▆▁▃▂▁▁▁▁▁▁▁▁▁▁▂▁▂▁▁▁43.79720.07142.450.00.033.3822.84425.93720.12560.57745.0570.00.8247.5847.4030.00.00.049.0210.00117.770.0119.7880.2760.029.48412.3370.00.00.00.00.00.00.00.00.02.12618.4323.5822.8660.00.00.0NANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
 us-gaap:DebtInstrumentInterestRateStatedPercentage us-gaap:DebtInstrument,us-gaap:LongtermDebtType bokf:Subordinateddebenturesacquired2015issuance,us-gaap:SubordinatedDebtNANA5.625e-06NANANA5.6250000000000004e-08NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA

Common Stock Value

us-gaap:CommonStockValue

us-gaap:CommonStockValue


Common
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-31
Value5000.05000.05000.05000.05000.05000.05000.05000.05000.05000.05000.04000.04000.04000.04000.04000.04000.04000.04000.04000.04000.04000.04000.04000.04000.04000.04000.04000.04000.04000.04000.04000.04000.04000.04000.04000.04000.04000.04000.04000.04000.04000.04000.04000.04000.04000.04000.0
Percentage of CommonStockValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:CommonStockValue us-gaap:ConsolidatedEntities

srt:ParentCompany


Common
Period End2020-12-312019-12-312018-12-312017-12-31
Value5000.05000.05000.04000.0
Percentage of CommonStockValue100.0100.0100.0100.0
Percentage of Assets0.00.00.00.0
Percentage of Assets srt:ParentCompany0.00.00.00.0

Preferred Stock Par Or Stated Value Per Share

us-gaap:PreferredStockParOrStatedValuePerShare us-gaap:StatementClassOfStock

us-gaap:PreferredStockParOrStatedValuePerShare

us-gaap:PreferredStock


Preferred
Period End2020-12-31
Value5e-05
Percentage of PreferredStockParOrStatedValuePerShare100.0

Shares Issued

us-gaap:SharesIssued us-gaap:StatementEquityComponents

us-gaap:SharesIssued

us-gaap:CommonStock


Shares
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312008-12-312007-12-31
Value76767575757675757575757575757575757574747474747474747473737373737372727272710.07153371717170707070706969
Percentage of SharesIssued100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:TreasuryStock


Shares
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312008-12-312007-12-31
Value7.1796.6866.3585.6935.6935.6925.1794.8994.5624.3123.5899.8749.8749.8599.7539.6739.6739.6739.6568.9568.9518.6468.6366.7485.4835.4294.894.6274.6114.4084.3054.3024.294.2584.0884.0083.8623.7850.003383.1482.6382.6352.6082.5362.5362.552.5092.4122.159
Percentage of SharesIssued9.48.88.47.57.57.56.86.56.05.74.713.113.113.113.012.912.912.912.912.012.011.611.69.17.47.36.66.36.26.05.95.95.95.85.65.55.45.34.74.43.73.73.73.63.63.63.63.53.1

Common Stock Shares Issued

us-gaap:CommonStockSharesIssued

us-gaap:CommonStockSharesIssued


Common
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-31
Value7676757575767575757575757575757575757474747474747474747373737373737272727271717171717070707070
Percentage of CommonStockSharesIssued100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Common Stock Shares Outstanding

us-gaap:CommonStockSharesOutstanding

us-gaap:CommonStockSharesOutstanding


Common
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-31
Value7676757575767575757575757575757575757474747474747474747373737373737272727271717171717070707070
Percentage of CommonStockSharesOutstanding100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Weighted Average Number Of Diluted Shares Outstanding

us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding

us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding


Weighted
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-09-302012-06-302012-03-312011-09-302011-06-302011-03-312010-09-302010-06-302010-03-31
Value6869696970707071646464646464656565676868686868686868686767686868676767
Percentage of WeightedAverageNumberOfDilutedSharesOutstanding100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Weighted Average Number Of Shares Outstanding Basic

us-gaap:WeightedAverageNumberOfSharesOutstandingBasic

us-gaap:WeightedAverageNumberOfSharesOutstandingBasic


Weighted
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-09-302012-06-302012-03-312011-09-302011-06-302011-03-312010-09-302010-06-302010-03-31
Value6869696970707071646464646464656565676868686868686767676767676767676767
Percentage of WeightedAverageNumberOfSharesOutstandingBasic100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Weighted Average Number Of Share Outstanding Basic And Diluted

us-gaap:WeightedAverageNumberOfShareOutstandingBasicAndDiluted

us-gaap:WeightedAverageNumberOfShareOutstandingBasicAndDiluted


Weighted
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-09-302012-06-302012-03-312011-09-30
Value696970707071717165656565656565666668686969696868686868686868
Percentage of WeightedAverageNumberOfShareOutstandingBasicAndDiluted100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount

us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount

us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount


Antidilutive
Period End2020-09-302020-06-302019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-09-302012-06-302012-03-312011-09-302011-06-302011-03-312010-09-302010-06-30
Value19227.022238.000000000000244020.00078209.00000087377.087749.0366410.0356710.0773080.0785690.0757000.02357100.0601360.0
Percentage of AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount100.0100.00.00.00.00.00.00.00.00.00.00.00.0100.00.00.0100.00.00.00.00.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Earnings Per Share Basic

us-gaap:EarningsPerShareBasic

us-gaap:EarningsPerShareBasic


Earnings
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value2.42.12.22.190.920.881.562.01.931.541.51.791.751.611.111.311.351.350.761.131.00.640.891.091.151.080.931.091.11.111.061.11.161.281.211.281.431.220.981.241.010.950.870.940.930.88
Percentage of EarningsPerShareBasic100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Earnings Per Share Diluted

us-gaap:EarningsPerShareDiluted

us-gaap:EarningsPerShareDiluted


Earnings
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value2.42.12.22.190.920.881.562.01.931.541.51.791.751.611.111.311.351.350.771.131.00.640.891.091.151.080.931.091.11.111.051.11.161.281.211.271.431.220.981.241.00.940.860.940.930.88
Percentage of EarningsPerShareDiluted100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Tier One Risk Based Capital To Risk Weighted Assets

us-gaap:TierOneRiskBasedCapitalToRiskWeightedAssets

us-gaap:TierOneRiskBasedCapitalToRiskWeightedAssets


Tier
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-31
Value11.950.11390.10920.12050.11210.12130.13330.13770.12780.1327
Percentage of TierOneRiskBasedCapitalToRiskWeightedAssets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:TierOneRiskBasedCapitalToRiskWeightedAssets dei:LegalEntity, us-gaap:ConsolidatedEntities

bokf:BOKFNA, srt:Subsidiaries


Tier
Period End2020-12-312019-12-312018-12-312017-12-31
Value11.660.1090.1050.1134
Percentage of TierOneRiskBasedCapitalToRiskWeightedAssets97.695.796.294.1

Capital To Risk Weighted Assets

us-gaap:CapitalToRiskWeightedAssets

us-gaap:CapitalToRiskWeightedAssets


Capital
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-31
Value13.820.12940.1250.13540.12810.1330.14660.15560.15130.1649
Percentage of CapitalToRiskWeightedAssets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:CapitalToRiskWeightedAssets dei:LegalEntity, us-gaap:ConsolidatedEntities

bokf:BOKFNA, srt:Subsidiaries


Capital
Period End2020-12-312019-12-312018-12-312017-12-31
Value12.890.11790.11260.1227
Percentage of CapitalToRiskWeightedAssets93.391.190.190.6

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
Value1713112414810328881177239179198909033368410194-56.6685290114-4.5881084010897491181094954-34.4387170110751163210210665
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 InterestAndDividendIncomeOperating58.110.639.250.533.982.722.044.961.347.854.229.730.712.514.133.143.141.6-26.325.044.756.5-2.356.221.258.852.426.964.960.926.729.4-18.637.836.156.437.158.616.449.852.032.3

Comprehensive Income Net Of Tax Attributable To Noncontrolling Interest

us-gaap:ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest

us-gaap:ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest


Comprehensive
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-31
Value686000.0-1752000.0485000.058000.0-407000.0-95000.0430000.0-373000.0217000.0-347000.0-79000.0289000.0783000.0-215000.0-127000.0141000.0719000.0308000.0-117000.0835000.0471000.0-1576000.01475000.0925000.01043000.0251000.01263000.0494000.0834000.0453000.0946000.0324000.0-43000.01095000.01051000.0471000.01833000.0-422000.0911000.0358000.02688000.0-8000.0
Percentage of ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of InterestAndDividendIncomeOperating0.2-0.60.20.0-0.1-0.00.1-0.10.1-0.1-0.00.10.3-0.1-0.00.10.30.1-0.10.40.2-0.80.70.50.50.10.70.30.50.30.50.2-0.00.60.50.20.9-0.20.50.21.3-0.0

us-gaap:ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest us-gaap:ConsolidationItems

us-gaap:CorporateNonSegment


Comprehensive
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value686000.0-1752000.058000.0-407000.0-95000.0-373000.0217000.0-347000.0-79000.0289000.0783000.0-215000.0-127000.0141000.0719000.0308000.0
Percentage of ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of InterestAndDividendIncomeOperating0.2-0.60.0-0.1-0.0-0.10.1-0.1-0.00.10.3-0.1-0.00.10.30.1
Percentage of InterestAndDividendIncomeOperating us-gaap:CorporateNonSegment0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest

us-gaap:ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest

us-gaap:ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest


Comprehensive
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value1722912514810328881177239179198909133358410294-56.7855390112-3.1131094110898501191095054-34.48172711117711533102109652788132118
Percentage of ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of InterestAndDividendIncomeOperating58.310.039.350.533.782.622.244.861.447.754.229.830.912.414.133.143.441.7-26.325.444.955.8-1.656.721.858.953.027.265.461.127.229.6-18.638.436.656.638.058.316.850.053.332.314.240.860.753.9

Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments

us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments

us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments


Income
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value2151861992048079141174175140128152148136126128136126721079662871091201139310811311410910912113612713315212810512811110390939790
Percentage of IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of InterestAndDividendIncomeOperating72.962.662.669.526.122.738.144.144.937.335.150.250.551.449.550.258.156.033.651.247.830.944.456.863.061.550.358.762.463.958.359.665.672.065.868.275.264.953.262.454.051.245.843.044.941.3

us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments us-gaap:ConsolidationItems

us-gaap:CorporateNonSegment


Income
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-30
Value71553924-118.698-85.002-10.928-18.312-27.044-29.978-12.456-15.138-5.957-10.705-10.288-22.344-13.258-17.9-21.32-13.823-14.275
Percentage of IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments33.429.919.811.9-148.2-107.2-7.7-10.5-15.4-21.4-9.7-9.9-4.0-7.9-8.1-17.4-9.7-14.1-29.4-12.9-14.8
Percentage of InterestAndDividendIncomeOperating24.318.712.48.3-38.7-24.4-3.0-4.6-6.9-8.0-3.4-5.0-2.0-4.0-4.0-8.7-5.6-7.9-9.9-6.6-7.1
Percentage of InterestAndDividendIncomeOperating us-gaap:CorporateNonSegment0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments

us-gaap:OperatingSegments, bokf:Commercial


Income
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-30
Value999510210311110311013914611711511511910710411411110410691866010673747572676559656558575754
Percentage of IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments46.251.251.450.4138.7130.178.179.883.383.789.675.980.279.282.188.981.882.5147.085.689.497.3122.067.061.866.477.462.357.551.960.459.348.642.245.340.8
Percentage of InterestAndDividendIncomeOperating33.732.132.235.036.329.629.835.237.431.231.538.140.540.740.744.747.546.249.343.842.830.154.138.038.940.838.936.635.933.235.235.331.930.429.827.8
Percentage of InterestAndDividendIncomeOperating us-gaap:OperatingSegments bokf:Commercial0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:OperatingSegments, bokf:Consumer


Income
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-30
Value2.2789.18919354230112221202.607128.188129.07311127.768-21.417146.9250.1956.3288.303126.4386.814201213191929293336
Percentage of IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments1.14.99.617.253.438.87.912.812.514.92.08.15.59.37.28.68.96.1-29.613.47.20.37.27.610.15.77.318.811.212.017.517.724.021.525.827.0
Percentage of InterestAndDividendIncomeOperating0.83.16.012.014.08.83.05.65.65.60.74.12.84.83.54.35.23.4-9.96.93.40.13.24.36.43.53.711.17.07.710.210.515.715.517.018.4
Percentage of InterestAndDividendIncomeOperating us-gaap:OperatingSegments bokf:Consumer0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:OperatingSegments, bokf:WealthManagement


Income
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-30
Value4126384144303031343123392726232525238.6871417116.4876.3346.8577.3397.3167.8498.4484.0532.9626.491.5163.0847.778.246
Percentage of IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments19.414.019.120.556.038.321.817.919.622.818.125.918.319.418.919.919.018.412.013.918.218.37.45.85.76.57.87.37.43.52.75.91.22.36.16.2
Percentage of InterestAndDividendIncomeOperating14.18.712.014.214.68.78.37.98.88.56.413.09.29.99.410.011.010.34.07.18.75.73.33.33.64.03.94.34.62.31.63.50.81.64.04.2
Percentage of InterestAndDividendIncomeOperating us-gaap:OperatingSegments bokf:WealthManagement0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Income Tax Expense Benefit

us-gaap:IncomeTaxExpenseBenefit

us-gaap:IncomeTaxExpenseBenefit


Income
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value48424550151730323729203433305442473822313021263440382831373735334147444553453743393831293230
Percentage of IncomeTaxExpenseBenefit100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of InterestAndDividendIncomeOperating16.414.214.117.25.25.08.28.29.68.05.511.411.311.721.216.620.316.810.415.315.110.613.317.621.220.815.117.320.420.918.818.222.424.922.823.326.223.018.920.919.119.215.813.814.713.8

us-gaap:IncomeTaxExpenseBenefit us-gaap:ConsolidationItems

us-gaap:CorporateNonSegment


Income
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-30
Value107.3872.6192.908-36.698-26.517-10.406-18.751-16.003-14.797-17.055-9.226-7.314-7.7941.055-16.135-10.579-20.75-13.963-15.071-12.7
Percentage of IncomeTaxExpenseBenefit21.117.45.85.8-232.2-153.3-34.4-57.9-42.6-49.4-84.8-26.6-21.9-25.21.9-38.0-22.2-54.5-62.1-47.2-41.6
Percentage of InterestAndDividendIncomeOperating3.52.50.81.0-12.0-7.6-2.8-4.7-4.1-3.9-4.7-3.0-2.5-2.90.4-6.3-4.5-9.2-6.5-7.2-6.3
Percentage of InterestAndDividendIncomeOperating us-gaap:CorporateNonSegment0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:IncomeTaxExpenseBenefit us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments

us-gaap:OperatingSegments, bokf:Commercial


Income
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-30
Value272527273028293739313030312840444340413533234128292928262523252522222221
Percentage of IncomeTaxExpenseBenefit55.761.361.755.3190.6162.899.0115.5104.2104.2151.588.394.792.974.4104.591.2106.8184.1111.6110.3110.3157.984.071.576.4100.082.268.561.772.775.655.447.550.946.4
Percentage of InterestAndDividendIncomeOperating9.18.78.79.59.88.18.19.510.08.38.310.110.710.815.817.418.518.019.217.016.611.721.114.815.115.915.114.214.012.913.713.812.411.811.610.8
Percentage of InterestAndDividendIncomeOperating us-gaap:OperatingSegments bokf:Commercial0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:OperatingSegments, bokf:Consumer


Income
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-30
Value0.582.344.8828.974107.8342.8335.6875.5855.3260.6643.1312.0863.2143.5294.2884.7253.022-8.3315.5782.6940.0762.4623.234.7632.5042.657.9074.9595.3367.4297.53111111214
Percentage of IncomeTaxExpenseBenefit1.25.510.817.869.045.39.417.614.917.83.39.06.310.46.510.19.97.9-37.017.58.80.49.49.511.76.59.424.813.314.221.022.527.324.229.030.7
Percentage of InterestAndDividendIncomeOperating0.20.81.53.03.62.20.81.41.41.40.21.00.71.21.41.72.01.3-3.92.71.30.01.31.72.51.41.44.32.73.04.04.16.16.06.67.2
Percentage of InterestAndDividendIncomeOperating us-gaap:OperatingSegments bokf:Consumer0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:OperatingSegments, bokf:WealthManagement


Income
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-30
Value106.6729.77110117.817.8788.0278.8438.2036.021106.9816.7879.3079.917109.0943.3795.7996.8634.4422.5232.4642.6672.8552.8463.0533.2861.5771.1522.5250.591.23.0223.208
Percentage of IncomeTaxExpenseBenefit22.015.721.621.272.645.126.024.823.527.429.929.220.921.917.123.421.123.915.018.122.520.79.67.26.67.410.19.68.84.23.37.51.42.56.87.0
Percentage of InterestAndDividendIncomeOperating3.62.23.13.63.72.22.12.02.32.21.63.32.42.63.63.94.34.01.62.83.42.21.31.31.41.51.51.71.80.90.61.40.30.61.61.6
Percentage of InterestAndDividendIncomeOperating us-gaap:OperatingSegments bokf:WealthManagement0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Income Taxes Paid Net

us-gaap:IncomeTaxesPaidNet

us-gaap:IncomeTaxesPaidNet


Income
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value960.85244864.6170.8539.44923530.8981447281.5482535582.60236288.6676.0042326483.2325.57211500.0562731675.9534531773.7654027789.2654121656.011
Percentage of IncomeTaxesPaidNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of InterestAndDividendIncomeOperating32.50.313.929.41.50.22.65.913.80.24.115.79.50.610.113.824.71.117.113.64.33.012.113.625.31.83.06.227.40.014.716.936.53.123.216.338.41.920.713.438.24.620.99.730.02.7

Interest Expense

us-gaap:InterestExpense

us-gaap:InterestExpense


Interest
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value1517212228879911610597796255453836292521211919151516161617161616171718202021242630313133363536
Percentage of InterestExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of InterestAndDividendIncomeOperating5.36.06.87.89.225.126.929.427.026.121.920.618.917.215.214.512.711.110.010.39.79.57.97.88.49.19.19.39.19.29.09.59.79.810.810.210.712.413.414.815.415.617.016.716.316.8

Interest Income Expense Net

us-gaap:InterestIncomeExpenseNet

us-gaap:InterestIncomeExpenseNet


Interest
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value280280297271278261270279285278285240238219216218205201194187182182181178175167169166166162170166167170173176181173171175174170163180182182
Percentage of InterestIncomeExpenseNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of InterestAndDividendIncomeOperating94.794.093.292.290.874.973.170.673.073.978.179.481.182.884.885.587.388.990.089.790.390.592.192.291.690.990.990.790.990.891.090.590.390.289.289.889.387.686.685.284.684.483.083.383.783.2

us-gaap:InterestIncomeExpenseNet us-gaap:ConsolidationItems

us-gaap:CorporateNonSegment


Interest
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-30
Value728176656647462720476826252526262520253134
Percentage of InterestIncomeExpenseNet25.728.925.624.224.018.017.29.87.116.923.810.910.611.512.212.412.310.213.316.618.6
Percentage of InterestAndDividendIncomeOperating24.427.223.822.321.813.512.56.95.212.518.68.68.69.610.410.610.79.112.014.916.8
Percentage of InterestAndDividendIncomeOperating us-gaap:CorporateNonSegment0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:InterestIncomeExpenseNet us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments

us-gaap:OperatingSegments, bokf:Commercial


Interest
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-30
Value13013014214914515115818018515114814514513213013212311711910810310210796958890858782828281818480
Percentage of InterestIncomeExpenseNet46.746.447.855.252.257.958.864.565.054.551.960.360.860.160.260.860.358.661.757.856.955.959.454.254.652.853.151.352.550.548.449.448.648.048.545.7
Percentage of InterestAndDividendIncomeOperating44.243.644.550.947.443.442.945.647.540.340.647.949.349.851.052.052.652.155.551.951.450.654.750.050.048.048.346.647.745.944.144.743.943.243.341.0
Percentage of InterestAndDividendIncomeOperating us-gaap:OperatingSegments bokf:Commercial0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:OperatingSegments, bokf:Consumer


Interest
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-30
Value242030333943434852514040393638373532303131302729292831312828303029293030
Percentage of InterestIncomeExpenseNet8.97.510.312.214.116.816.017.418.518.414.116.716.516.817.717.317.215.915.616.717.116.915.116.416.717.118.818.717.417.717.618.117.917.417.317.2
Percentage of InterestAndDividendIncomeOperating8.47.09.611.212.812.611.712.313.513.611.013.213.413.915.014.815.014.214.115.015.415.313.915.115.315.517.117.015.816.116.016.416.215.615.515.4
Percentage of InterestAndDividendIncomeOperating us-gaap:OperatingSegments bokf:Consumer0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:OperatingSegments, bokf:WealthManagement


Interest
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-30
Value524848222618212326282829282521202020181613131211111112111010101111111212
Percentage of InterestIncomeExpenseNet18.717.216.38.59.77.28.18.39.410.210.112.212.211.59.99.510.110.19.48.97.47.56.86.66.36.67.26.76.36.56.46.77.06.97.17.1
Percentage of InterestAndDividendIncomeOperating17.716.215.27.88.85.45.95.86.97.57.99.79.99.58.48.18.89.08.48.06.76.86.26.15.86.06.66.15.75.95.86.16.36.26.36.4
Percentage of InterestAndDividendIncomeOperating us-gaap:OperatingSegments bokf:WealthManagement0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Interest Paid Net

us-gaap:InterestPaidNet

us-gaap:InterestPaidNet


Interest
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value15162121308710011210894796253473735282621212019161518151814181418152016231830173424372640294132
Percentage of InterestPaidNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of InterestAndDividendIncomeOperating5.25.66.77.39.825.127.228.627.925.221.820.718.117.814.713.712.311.59.910.210.09.98.18.29.88.39.98.09.98.09.78.210.98.712.09.315.19.017.411.718.113.020.513.419.314.9

Marketing And Advertising Expense

us-gaap:MarketingAndAdvertisingExpense

us-gaap:MarketingAndAdvertisingExpense


Marketing
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value2.7442.1543.7282.6331.9356.2158.7878.859107.8749.2077.627.6866.017.3177.1057.7386.7177.3446.8396.7035.6968.4165.9227.7655.7487.4986.167.155.8416.025.3555.775.4536.156.0546.7464.3885.8685.284.7774.6244.3774.4264.9453.978
Percentage of MarketingAndAdvertisingExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of InterestAndDividendIncomeOperating0.90.71.20.90.61.82.42.22.62.12.52.52.62.32.92.83.33.03.43.33.32.84.33.14.03.14.03.43.93.33.22.93.12.93.23.13.32.23.02.62.32.32.22.02.31.8

Net Income Loss

us-gaap:NetIncomeLoss

us-gaap:NetIncomeLoss


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value16614615415464621101421371101081171141057285888850746542597479746475757672757987828797836685696458646360
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 InterestAndDividendIncomeOperating56.249.048.352.321.117.829.836.035.229.429.738.738.939.828.333.537.539.023.235.532.521.130.338.741.340.634.541.141.642.838.941.243.246.542.544.648.142.233.841.433.532.129.829.629.227.4

us-gaap:NetIncomeLoss us-gaap:ConsolidationItems

us-gaap:CorporateNonSegment


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
Value61503621-81.593-58.39-0.9520.812-11.258-14.8344.678-6.2010.574-2.696-11.216-6.35-3.3982.542-7.240.413-2.046
Percentage of NetIncomeLoss36.734.323.713.9-126.1-94.1-0.90.6-8.2-13.44.3-5.30.5-2.6-15.5-7.4-3.92.9-14.50.6-3.1
Percentage of InterestAndDividendIncomeOperating20.616.811.57.3-26.6-16.7-0.30.2-2.9-3.91.3-2.00.2-1.0-4.4-2.5-1.41.1-3.40.2-1.0
Percentage of InterestAndDividendIncomeOperating us-gaap:CorporateNonSegment0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:NetIncomeLoss us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments

us-gaap:OperatingSegments, bokf:Commercial


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-30
Value72697475807480101106868484877963696863655552376545454644414036403936353533
Percentage of NetIncomeLoss43.647.748.648.8125.2120.872.671.477.777.978.072.576.675.187.781.477.572.3130.075.480.387.2109.260.157.661.569.054.452.747.555.252.445.139.942.938.2
Percentage of InterestAndDividendIncomeOperating24.523.423.525.526.421.521.725.727.422.923.128.029.829.924.827.329.028.230.126.826.118.433.123.223.824.923.822.421.920.321.521.619.518.618.217.0
Percentage of InterestAndDividendIncomeOperating us-gaap:OperatingSegments bokf:Commercial0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:OperatingSegments, bokf:Consumer


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-30
Value1.6986.849142631228.2871616151.9439.1626.1029.4065.5446.7347.4224.746-13.0868.7624.2310.1193.8665.0737.483.9344.164127.798.381111117172022
Percentage of NetIncomeLoss1.04.79.317.049.336.97.511.711.914.11.87.85.38.97.67.98.45.4-26.211.86.40.36.56.89.45.36.516.410.310.916.015.622.220.324.425.2
Percentage of InterestAndDividendIncomeOperating0.62.34.58.910.46.62.24.24.24.10.53.02.13.52.22.63.22.1-6.14.22.10.12.02.63.92.12.26.84.34.76.26.49.69.510.411.2
Percentage of InterestAndDividendIncomeOperating us-gaap:OperatingSegments bokf:Consumer0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:OperatingSegments, bokf:WealthManagement


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-30
Value3119283133222223252317292019141515145.3089.108106.9773.9643.874.194.4844.474.7965.1622.4761.813.9650.9261.8844.7485.038
Percentage of NetIncomeLoss18.713.318.420.351.636.420.716.318.621.415.925.017.618.620.218.218.016.210.612.316.416.46.75.25.36.06.96.36.83.22.55.21.22.15.85.8
Percentage of InterestAndDividendIncomeOperating10.56.58.910.610.96.56.25.96.56.34.79.76.87.45.76.16.76.32.54.45.33.52.02.02.22.42.42.62.81.41.02.20.51.02.42.6
Percentage of InterestAndDividendIncomeOperating us-gaap:OperatingSegments bokf:WealthManagement0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Net Income Loss Attributable To Noncontrolling Interest

us-gaap:NetIncomeLossAttributableToNoncontrollingInterest

us-gaap:NetIncomeLossAttributableToNoncontrollingInterest


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value0.686-1.7520.4850.058-0.407-0.0950.43-0.3730.217-0.347-0.0790.2890.783-0.215-0.1270.1410.7190.308-0.1170.8350.4710.9460.324-0.0431.0951.0510.4711.833-0.4220.9110.3582.688-0.0080.274-0.9792.0360.209
Percentage of NetIncomeLossAttributableToNoncontrollingInterest100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of InterestAndDividendIncomeOperating0.2-0.60.20.0-0.1-0.00.1-0.10.1-0.1-0.00.10.3-0.1-0.00.10.30.1-0.10.40.20.50.2-0.00.60.50.20.9-0.20.50.21.3-0.00.1-0.50.90.1

Net Income Loss Available To Common Stockholders Basic

us-gaap:NetIncomeLossAvailableToCommonStockholdersBasic

us-gaap:NetIncomeLossAvailableToCommonStockholdersBasic


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
Value165145153153646110914113610910711611310471848787497364425873787463747575727479868287968266846864586363
Percentage of NetIncomeLossAvailableToCommonStockholdersBasic100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of InterestAndDividendIncomeOperating55.848.748.152.021.017.729.735.835.029.229.438.338.639.428.133.237.138.622.935.032.120.829.938.240.840.134.140.641.142.438.540.842.746.042.244.447.641.833.641.033.331.829.629.429.0

Net Income Loss Available To Common Stockholders Diluted

us-gaap:NetIncomeLossAvailableToCommonStockholdersDiluted

us-gaap:NetIncomeLossAvailableToCommonStockholdersDiluted


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
Value165145153153646110914113610910711611310471848787497364425873787463747575727479868287968266846864586363
Percentage of NetIncomeLossAvailableToCommonStockholdersDiluted100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of InterestAndDividendIncomeOperating55.848.748.152.021.017.729.735.835.029.229.438.338.639.428.133.237.138.622.935.032.120.829.938.240.840.134.140.641.142.438.540.842.746.042.244.447.641.833.641.033.331.829.629.429.0

Other Comprehensive Income Loss Net Of Tax

us-gaap:OtherComprehensiveIncomeLossNetOfTax

us-gaap:OtherComprehensiveIncomeLossNetOfTax


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-30
Value5.359-114.459-29.302-5.14639226-28.83351026989-27.057-24.114-72.308-36.381-1.207135.746-106.694-21.9052471-64.18933-38.5113333-26.1214232-22.997-21.64-114.369-16.537-12.47323-22.22832-34.59217
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 InterestAndDividendIncomeOperating1.8-38.4-9.2-1.712.764.9-7.88.926.118.424.6-8.9-8.2-27.2-14.2-0.55.62.5-49.5-10.512.135.4-32.617.5-20.118.217.9-14.223.318.1-12.3-11.8-61.8-8.7-6.411.8-10.916.4-17.58.4

us-gaap:OtherComprehensiveIncomeLossNetOfTax us-gaap:StatementEquityComponents

us-gaap:AccumulatedNetUnrealizedInvestmentGainLoss


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
Value5.359-114.459-30.211-5.14639226-30.343351026990-27.057-24.114-72.308-37.611-1.21135.746-106.579-21.9052471-65.2434-38.4643333-25.9884232-27.712-21.267-113.882-15.867-16.41623-21.39933
Percentage of OtherComprehensiveIncomeLossNetOfTax100.0100.0103.1100.0100.0100.0105.2100.0100.0100.0100.9100.0100.0100.0103.4100.2100.0100.099.9100.0100.1100.1101.6100.299.9100.298.999.5100.4100.6120.598.399.695.9131.6103.296.3103.8
Percentage of InterestAndDividendIncomeOperating1.8-38.4-9.5-1.712.764.9-8.28.926.118.424.8-8.9-8.2-27.2-14.7-0.55.62.5-49.4-10.512.135.5-33.217.6-20.118.317.7-14.123.418.2-14.8-11.6-61.5-8.4-8.412.2-10.517.0
Percentage of InterestAndDividendIncomeOperating us-gaap:AccumulatedNetUnrealizedInvestmentGainLoss0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:AccumulatedOtherComprehensiveIncome


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-31
Value5.359-114.459-29.302-5.14639226-28.83351026989-27.057-24.114-72.308-36.381-1.207135.746-106.694-21.9052471-64.18933-38.5113333-26.1214232-22.997-21.64-114.369-16.537-12.47323-22.22832-34.592
Percentage of OtherComprehensiveIncomeLossNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of InterestAndDividendIncomeOperating1.8-38.4-9.2-1.712.764.9-7.88.926.118.424.6-8.9-8.2-27.2-14.2-0.55.62.5-49.5-10.512.135.4-32.617.5-20.118.217.9-14.223.318.1-12.3-11.8-61.8-8.7-6.411.8-10.916.4-17.5
Percentage of InterestAndDividendIncomeOperating us-gaap:AccumulatedOtherComprehensiveIncome0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:Parent


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-31
Value5.359-114.459-29.302-5.14639226-28.83351026989-27.057-24.114-72.308-36.381-1.207135.746-106.694-21.9052471-64.18933-38.5113333-26.1214232-22.997-21.64-114.369-16.537-12.47323-22.22832-34.592
Percentage of OtherComprehensiveIncomeLossNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of InterestAndDividendIncomeOperating1.8-38.4-9.2-1.712.764.9-7.88.926.118.424.6-8.9-8.2-27.2-14.2-0.55.62.5-49.5-10.512.135.4-32.617.5-20.118.217.9-14.223.318.1-12.3-11.8-61.8-8.7-6.411.8-10.916.4-17.5
Percentage of InterestAndDividendIncomeOperating us-gaap:Parent0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Profit Loss

us-gaap:ProfitLoss

us-gaap:ProfitLoss


Profit
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value16714415415464611101411371101081171151057285888849756640617580756576767773767989838799836785716459636560
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 InterestAndDividendIncomeOperating56.548.448.552.321.017.830.035.935.329.329.638.839.139.728.333.637.839.223.135.932.820.331.039.141.840.735.141.442.043.039.441.443.247.143.044.849.042.034.341.534.932.030.029.230.127.5

us-gaap:ProfitLoss us-gaap:ConsolidationItems

us-gaap:CorporateNonSegment


Profit
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-30
Value61483721-82.0-58.485-0.5220.439-11.041-15.1814.599-5.9121.357-2.911-11.343-6.209-2.6792.85-7.3571.248-1.575
Percentage of ProfitLoss36.933.523.914.0-127.6-94.4-0.50.3-8.0-13.84.2-5.01.2-2.8-15.7-7.2-3.03.2-14.71.7-2.4
Percentage of InterestAndDividendIncomeOperating20.916.211.67.3-26.8-16.8-0.10.1-2.8-4.01.3-1.90.5-1.1-4.4-2.4-1.11.3-3.40.6-0.8
Percentage of InterestAndDividendIncomeOperating us-gaap:CorporateNonSegment0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:ProfitLoss us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments

us-gaap:OperatingSegments, bokf:Commercial


Profit
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-30
Value72697475807480101106868484877963696863655552376545454644414036403936353533
Percentage of ProfitLoss43.548.348.448.7126.0121.072.471.677.678.178.172.376.175.287.881.276.972.1130.374.579.790.6106.559.456.961.367.754.052.247.254.552.245.139.542.438.0
Percentage of InterestAndDividendIncomeOperating24.523.423.525.526.421.521.725.727.422.923.128.029.829.924.827.329.028.230.126.826.118.433.123.223.824.923.822.421.920.321.521.619.518.618.217.0
Percentage of InterestAndDividendIncomeOperating us-gaap:OperatingSegments bokf:Commercial0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:OperatingSegments, bokf:Consumer


Profit
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-30
Value1.6986.849142631228.2871616151.9439.1626.1029.4065.5446.7347.4224.746-13.0868.7624.2310.1193.8665.0737.483.9344.164127.798.381111117172022
Percentage of ProfitLoss1.04.79.217.049.637.07.511.711.914.11.87.85.38.97.77.88.45.4-26.211.76.40.36.36.79.35.26.316.310.210.915.815.622.220.124.125.1
Percentage of InterestAndDividendIncomeOperating0.62.34.58.910.46.62.24.24.24.10.53.02.13.52.22.63.22.1-6.14.22.10.12.02.63.92.12.26.84.34.76.26.49.69.510.411.2
Percentage of InterestAndDividendIncomeOperating us-gaap:OperatingSegments bokf:Consumer0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:OperatingSegments, bokf:WealthManagement


Profit
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-30
Value3119283133222223252317292019141515145.3089.108106.9773.9643.874.194.4844.474.7965.1622.4761.813.9650.9261.8844.7485.038
Percentage of ProfitLoss18.613.418.420.351.936.420.616.418.521.515.925.017.518.620.218.217.816.110.612.116.317.06.55.15.26.06.86.36.73.22.45.21.22.15.75.7
Percentage of InterestAndDividendIncomeOperating10.56.58.910.610.96.56.25.96.56.34.79.76.87.45.76.16.76.32.54.45.33.52.02.02.22.42.42.62.81.41.02.20.51.02.42.6
Percentage of InterestAndDividendIncomeOperating us-gaap:OperatingSegments bokf:WealthManagement0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:ProfitLoss us-gaap:StatementEquityComponents

us-gaap:NoncontrollingInterest


Profit
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-31
Value0.686-1.7520.4850.058-0.407-0.0950.43-0.3730.217-0.347-0.0790.2890.783-0.215-0.1270.1410.7190.308-0.1170.8350.471-1.5761.4750.9251.0430.2511.2630.4940.8340.4530.9460.324-0.0431.0951.0510.4711.833-0.4220.9110.3582.688-0.008
Percentage of ProfitLoss0.4-1.20.30.0-0.6-0.20.4-0.30.2-0.3-0.10.20.7-0.2-0.20.20.80.3-0.21.10.7-3.82.41.21.30.31.90.61.10.61.30.4-0.11.21.30.51.8-0.51.30.43.7-0.0
Percentage of InterestAndDividendIncomeOperating0.2-0.60.20.0-0.1-0.00.1-0.10.1-0.1-0.00.10.3-0.1-0.00.10.30.1-0.10.40.2-0.80.70.50.50.10.70.30.50.30.50.2-0.00.60.50.20.9-0.20.50.21.3-0.0
Percentage of InterestAndDividendIncomeOperating us-gaap:NoncontrollingInterest0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:Parent


Profit
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-31
Value166146154154646211014213711010811711410572858888507465425974797464757576727579878287978366856964
Percentage of ProfitLoss99.6101.299.7100.0100.6100.299.6100.399.8100.3100.199.899.3100.2100.299.899.299.7100.298.999.3103.897.698.898.799.798.199.498.999.498.799.6100.198.898.799.598.2100.598.799.696.3100.0
Percentage of InterestAndDividendIncomeOperating56.249.048.352.321.117.829.836.035.229.429.738.738.939.828.333.537.539.023.235.532.521.130.338.741.340.634.541.141.642.838.941.243.246.542.544.648.142.233.841.433.532.1
Percentage of InterestAndDividendIncomeOperating us-gaap:Parent0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:RetainedEarnings


Profit
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-31
Value166146154154646211014213711010811711410572858888507465425974797464757576727579878287978366856964
Percentage of ProfitLoss99.6101.299.7100.0100.6100.299.6100.399.8100.3100.199.899.3100.2100.299.899.299.7100.298.999.3103.897.698.898.799.798.199.498.999.498.799.6100.198.898.799.598.2100.598.799.696.3100.0
Percentage of InterestAndDividendIncomeOperating56.249.048.352.321.117.829.836.035.229.429.738.738.939.828.333.537.539.023.235.532.521.130.338.741.340.634.541.141.642.838.941.243.246.542.544.648.142.233.841.433.532.1
Percentage of InterestAndDividendIncomeOperating us-gaap:RetainedEarnings0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Realized Investment Gains Losses

us-gaap:RealizedInvestmentGainsLosses

us-gaap:RealizedInvestmentGainsLosses


Realized
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-03-31
Value1710112.0312-10.742-2.0733.221.308-1.872-4.004-1.0511.063-5.5930.898-2.4212.0432.308-0.6523.8765.7524.0352.6110.1186.5275.9562.821-3.480.8191.2024.669-49.865223530444118-3.403-9.79726-9.7220.8922.545
Percentage of RealizedInvestmentGainsLosses100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of InterestAndDividendIncomeOperating6.03.53.70.74.2-3.1-0.60.80.3-0.5-1.1-0.30.4-2.10.4-0.90.91.0-0.31.92.82.01.30.13.43.21.5-1.90.40.72.5-27.111.918.915.922.820.69.2-1.7-4.812.9-4.80.51.2

Revenue From Contract With Customer Excluding Assessed Tax

us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:ProductOrService

us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax

bokf:Automatedservicechargeandotherdepositfeerevenue


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value1.091.1981.2261.0581.2251.631.5881.7711.7912.0441.8941.7261.6951.723
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of InterestAndDividendIncomeOperating0.40.40.40.40.40.50.40.40.50.50.50.60.60.6
Percentage of InterestAndDividendIncomeOperating bokf:Automatedservicechargeandotherdepositfeerevenue0.00.00.00.00.00.00.00.00.00.00.00.00.00.0

bokf:Brokerageandtradingrevenue


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value11121211111110111110108.3318.0558.286
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax1090.01037.1993.61107.3899.1696.0658.1638.2620.0527.9547.0482.7475.2480.9
Percentage of InterestAndDividendIncomeOperating4.04.23.84.03.63.32.82.92.82.92.82.72.73.1
Percentage of InterestAndDividendIncomeOperating bokf:Brokerageandtradingrevenue0.00.00.00.00.00.00.00.00.00.00.00.00.00.0

bokf:Checkcardfeerevenue


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value6.0295.3275.4395.5655.1225.2295.5665.7215.5875.1565.7915.2545.3434.918
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax553.1444.7443.6526.0418.1320.8350.5323.0311.9252.3305.8304.4315.2285.4
Percentage of InterestAndDividendIncomeOperating2.01.81.71.91.71.51.51.41.41.41.61.71.81.9
Percentage of InterestAndDividendIncomeOperating bokf:Checkcardfeerevenue0.00.00.00.00.00.00.00.00.00.00.00.00.00.0

bokf:Commercialaccountservicechargerevenue


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value1313121212111111111212111111
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax1264.71085.5992.71153.1984.2735.8750.4655.7647.2625.4646.0651.4701.1691.1
Percentage of InterestAndDividendIncomeOperating4.74.43.84.13.93.43.22.93.03.43.33.74.04.5
Percentage of InterestAndDividendIncomeOperating bokf:Commercialaccountservicechargerevenue0.00.00.00.00.00.00.00.00.00.00.00.00.00.0

bokf:Corporatecardrevenue


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value1.1890.8830.8550.6860.5030.5360.4950.3340.1970.080.00.00.00.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax109.173.769.764.841.132.931.218.911.03.90.00.00.00.0
Percentage of InterestAndDividendIncomeOperating0.40.30.30.20.20.20.10.10.10.00.00.00.00.0
Percentage of InterestAndDividendIncomeOperating bokf:Corporatecardrevenue0.00.00.00.00.00.00.00.00.00.00.00.00.00.0

bokf:Corporatetrustrevenue


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value3.4353.7893.7294.6134.6046.3625.8996.2056.336.2015.9755.7414.9355.641
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax315.1316.3304.2436.0375.8390.3371.5350.4353.4303.4315.5332.6291.2327.4
Percentage of InterestAndDividendIncomeOperating1.21.31.21.61.51.81.61.61.61.61.61.91.72.1
Percentage of InterestAndDividendIncomeOperating bokf:Corporatetrustrevenue0.00.00.00.00.00.00.00.00.00.00.00.00.00.0

bokf:Feesandcommissionsrevenue


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value11010310310299107109111110107109119103102
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax10149.48642.78412.99704.08144.26608.26918.26301.06165.95243.25762.66904.36118.15934.0
Percentage of InterestAndDividendIncomeOperating37.434.732.334.832.630.929.728.228.328.529.939.335.338.5
Percentage of InterestAndDividendIncomeOperating bokf:Feesandcommissionsrevenue0.00.00.00.00.00.00.00.00.00.00.00.00.00.0

bokf:Institutionaltrustretirementplanservicesrevenue


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value1212121110111110111110111111
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax1176.91052.61039.41042.5875.3721.3720.0606.4618.2543.4573.1640.6651.3664.5
Percentage of InterestAndDividendIncomeOperating4.34.24.03.73.53.43.12.72.83.03.03.63.84.3
Percentage of InterestAndDividendIncomeOperating bokf:Institutionaltrustretirementplanservicesrevenue0.00.00.00.00.00.00.00.00.00.00.00.00.00.0

bokf:Insurancebrokeragerevenue


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value2.9962.9162.6363.1243.1533.7893.0692.8623.8224.1083.6430.170.2290.155
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax274.9243.4215.0295.3257.4232.5193.3161.6213.4201.0192.39.813.59.0
Percentage of InterestAndDividendIncomeOperating1.01.00.81.11.01.10.80.71.01.11.00.10.10.1
Percentage of InterestAndDividendIncomeOperating bokf:Insurancebrokeragerevenue0.00.00.00.00.00.00.00.00.00.00.00.00.00.0

bokf:Investmentbankingrevenue


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value4.3574.7685.384.8044.4673.2123.3734.2373.3812.6612.273.8363.2443.532
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax399.7398.0438.8454.1364.7197.1212.4239.2188.8130.2119.9222.2191.4205.0
Percentage of InterestAndDividendIncomeOperating1.51.61.71.61.50.90.91.10.90.70.61.31.11.3
Percentage of InterestAndDividendIncomeOperating bokf:Investmentbankingrevenue0.00.00.00.00.00.00.00.00.00.00.00.00.00.0

bokf:Investmentmanagementservicesandother


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value3.4132.9463.0284.1584.2495.696.9546.4386.4076.4765.5575.1895.1674.641
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax313.1245.9247.0393.0346.9349.1437.9363.5357.7316.8293.4300.6304.8269.4
Percentage of InterestAndDividendIncomeOperating1.21.00.91.41.41.61.91.61.61.71.51.71.81.7
Percentage of InterestAndDividendIncomeOperating bokf:Investmentmanagementservicesandother0.00.00.00.00.00.00.00.00.00.00.00.00.00.0

bokf:Merchantservicesrevenue


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value3.4522.2811.6323.0382.2432.3192.272.2172.2372.0622.0392.0091.9371.819
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax316.7190.4133.1287.1183.1142.3142.9125.2124.9100.9107.7116.4114.3105.6
Percentage of InterestAndDividendIncomeOperating1.20.80.51.00.70.70.60.60.60.50.60.70.70.7
Percentage of InterestAndDividendIncomeOperating bokf:Merchantservicesrevenue0.00.00.00.00.00.00.00.00.00.00.00.00.00.0

bokf:Overdraftfeerevenue


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value4.9574.685.5075.4633.6437.2788.269.7329.1048.269.4799.5418.9058.612
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax454.8390.7449.2516.4297.4446.5520.2549.5508.3404.1500.5552.8525.4499.8
Percentage of InterestAndDividendIncomeOperating1.71.61.71.91.22.12.22.52.32.22.63.13.03.2
Percentage of InterestAndDividendIncomeOperating bokf:Overdraftfeerevenue0.00.00.00.00.00.00.00.00.00.00.00.00.00.0

bokf:Personaltrustrevenue


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value2521222021202020211921352020
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax2307.91834.51818.81902.61769.91266.81305.71142.71184.6957.61123.12058.41212.91166.6
Percentage of InterestAndDividendIncomeOperating8.57.47.06.87.15.95.65.15.45.25.811.77.07.6
Percentage of InterestAndDividendIncomeOperating bokf:Personaltrustrevenue0.00.00.00.00.00.00.00.00.00.00.00.00.00.0

bokf:Retailbrokeragerevenue


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value4.5284.7414.1663.7873.3944.3434.0094.2043.9014.0228.094.4954.8114.754
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax415.4395.7339.8357.9277.1266.4252.5237.4217.8196.8427.1260.4283.8275.9
Percentage of InterestAndDividendIncomeOperating1.51.61.31.31.11.21.11.11.01.12.21.51.61.8
Percentage of InterestAndDividendIncomeOperating bokf:Retailbrokeragerevenue0.00.00.00.00.00.00.00.00.00.00.00.00.00.0

bokf:TransFundEFTnetworkrevenue


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value2019191920191919191818191919
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax1860.71608.21583.11865.91648.51167.21245.81099.01087.7909.8983.41123.21123.21112.7
Percentage of InterestAndDividendIncomeOperating6.96.56.16.76.65.55.34.95.04.95.16.46.57.2
Percentage of InterestAndDividendIncomeOperating bokf:TransFundEFTnetworkrevenue0.00.00.00.00.00.00.00.00.00.00.00.00.00.0

bokf:Transactioncardrevenue


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value2422212322212222212020212020
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax2286.51872.31786.02217.91872.71342.41419.91243.11223.61014.61091.01239.61237.51218.2
Percentage of InterestAndDividendIncomeOperating8.47.56.98.07.56.36.15.65.65.55.77.17.17.9
Percentage of InterestAndDividendIncomeOperating bokf:Transactioncardrevenue0.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:DepositAccount


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value2524242422262728282829272727
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax2372.62020.81985.62295.51799.71603.11721.11628.31567.51381.81552.31608.61642.11576.4
Percentage of InterestAndDividendIncomeOperating8.78.17.68.27.27.57.47.37.27.58.09.29.510.2
Percentage of InterestAndDividendIncomeOperating us-gaap:DepositAccount0.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:FiduciaryAndTrust


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value4441413941444543454343574141
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax4113.03449.23409.43774.23367.92727.52835.12463.12514.02121.22305.13332.22459.72427.9
Percentage of InterestAndDividendIncomeOperating15.213.913.113.613.512.712.211.011.511.511.919.014.215.8
Percentage of InterestAndDividendIncomeOperating us-gaap:FiduciaryAndTrust0.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:FinancialServiceOther


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value3.1313.1532.9223.2712.5093.9014.515.8144.3144.0425.0624.1624.1573.974
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax287.2263.2238.3309.2204.8239.3284.0328.3240.9197.7267.3241.1245.3230.6
Percentage of InterestAndDividendIncomeOperating1.11.10.91.10.81.11.21.51.11.11.41.41.41.5
Percentage of InterestAndDividendIncomeOperating us-gaap:FinancialServiceOther0.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Assets

us-gaap:Assets

us-gaap:Assets


Assets
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-31
Value4715447442466714606745819471194217243127418933988238020332893383333361322723300532263326283277232779319703141331476305663072530299290892910527843273642701527166278082744728148271172557625884254932506624238237012394124385237362350123516
Percentage of Assets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:Assets us-gaap:ConsolidatedEntities

srt:ParentCompany


Assetsus-gaap:
Period End2020-12-312019-12-312018-12-312017-12-31
Value5548513747193653
Percentage of Assets11.912.212.411.3
Percentage of Assets11.912.212.411.3
Percentage of Assets srt:ParentCompany100.0100.0100.0100.0

Liabilities

us-gaap:Liabilities

us-gaap:Liabilities


Liabilities
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-31
Value4179942180413794084140715420853730838289371743535133577296643025729844287532949128813292582946529346285672805728208271502731226909257532582724596242202396024139248152439925154241052265323013227072229821546211032139721861212862116921291
Percentage of Liabilities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets88.688.988.788.788.989.388.588.888.788.688.389.189.489.589.189.489.389.789.989.589.489.389.688.888.988.888.588.788.388.588.788.989.288.989.488.988.688.989.189.088.989.089.489.689.790.190.5

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

us-gaap:OtherLiabilities, us-gaap:VariableInterestEntityNotPrimaryBeneficiary


Liabilitiesus-gaap:
Period End2020-09-302020-06-30
Value8978
Percentage of Liabilities0.20.2
Percentage of Assets0.20.2
Percentage of Assets us-gaap:OtherLiabilities us-gaap:VariableInterestEntityNotPrimaryBeneficiary0.00.0

us-gaap:Liabilities us-gaap:ConsolidatedEntities

srt:ParentCompany


Liabilitiesus-gaap:
Period End2020-12-312019-12-312018-12-312017-12-31
Value282281287157
Percentage of Liabilities0.70.80.90.5
Percentage of Assets0.60.70.80.5
Percentage of Assets srt:ParentCompany5.15.56.14.3

Liabilities And Stockholders Equity

us-gaap:LiabilitiesAndStockholdersEquity

us-gaap:LiabilitiesAndStockholdersEquity


Liabilities
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-31
Value4715447442466714606745819471194217243127418933988238020332893383333361322723300532263326283277232779319703141331476305663072530299290892910527843273642701527166278082744728148271172557625884254932506624238237012394124385237362350123516
Percentage of LiabilitiesAndStockholdersEquity100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:LiabilitiesAndStockholdersEquity us-gaap:ConsolidatedEntities

srt:ParentCompany


Liabilities
Period End2020-12-312019-12-312018-12-312017-12-31
Value5548513747193653
Percentage of LiabilitiesAndStockholdersEquity11.912.212.411.3
Percentage of Assets11.912.212.411.3
Percentage of Assets srt:ParentCompany100.0100.0100.0100.0

Stockholders Equity

us-gaap:StockholdersEquity

us-gaap:StockholdersEquity


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-31
Value53325239526652185096502648554829470945224432361535533495349534883422334132743398336833213230337733753357330232433212310930202991295730112957297528852834275027322667257625212503242823122205
Percentage of StockholdersEquity100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets11.311.011.311.311.110.711.511.211.211.311.710.910.510.510.810.610.610.210.010.410.510.610.311.011.011.111.411.111.511.411.211.010.611.010.511.011.311.010.810.911.010.910.510.310.29.89.4

us-gaap:StockholdersEquity us-gaap:ConsolidatedEntities

srt:ParentCompany


Stockholders
Period End2020-12-312019-12-312018-12-312017-12-31
Value5266485544323495
Percentage of StockholdersEquity100.0100.0100.0100.0
Percentage of Assets11.311.511.710.8
Percentage of Assets srt:ParentCompany94.994.593.995.7

Tier One Risk Based Capital

us-gaap:TierOneRiskBasedCapital

us-gaap:TierOneRiskBasedCapital


Tier
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-31
Value3881360833563074283428422838266824302295
Percentage of TierOneRiskBasedCapital100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets8.38.68.89.58.69.09.89.98.69.0

us-gaap:TierOneRiskBasedCapital dei:LegalEntity, us-gaap:ConsolidatedEntities

bokf:BOKFNA, srt:Subsidiaries


Tier
Period End2020-12-312019-12-312018-12-312017-12-31
Value3756341428942870
Percentage of TierOneRiskBasedCapital96.894.686.293.4
Percentage of Assets8.08.17.68.9
Percentage of Assets bokf:BOKFNA srt:Subsidiaries0.00.00.00.0

Cash And Cash Equivalents At Carrying Value

us-gaap:CashAndCashEquivalentsAtCarryingValue

us-gaap:CashAndCashEquivalentsAtCarryingValue


Cash
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312008-12-312007-12-31
Value125914191180100612479731258122613351282114312461458259923172473264027672537261624062312264323192562261024752565134713541087116010789451286615639706986972111080812691195852931921694890
Percentage of CashAndCashEquivalentsAtCarryingValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets2.73.02.52.22.72.13.02.83.23.23.03.74.37.87.27.58.28.57.78.07.57.48.47.68.38.68.58.84.84.94.04.33.93.44.62.32.52.73.93.94.63.45.34.93.64.03.90.00.0

us-gaap:CashAndCashEquivalentsAtCarryingValue us-gaap:ConsolidatedEntities

srt:ParentCompany


Cash
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-31
Value183214167205163282
Percentage of CashAndCashEquivalentsAtCarryingValue15.617.114.68.96.410.7
Percentage of Assets0.40.50.40.60.50.9
Percentage of Assets srt:ParentCompany3.34.23.55.60.00.0

Property Plant And Equipment Gross

us-gaap:PropertyPlantAndEquipmentGross

us-gaap:PropertyPlantAndEquipmentGross


Property
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-31
Value843779645755733674617594565530501
Percentage of PropertyPlantAndEquipmentGross100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets1.81.81.72.32.22.12.12.22.02.12.1

us-gaap:PropertyPlantAndEquipmentGross us-gaap:PropertyPlantAndEquipmentByType

us-gaap:AssetUnderConstruction


Property
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-31
Value465327233639213130
Percentage of PropertyPlantAndEquipmentGross5.66.94.33.15.05.93.55.25.4
Percentage of Assets0.10.10.10.10.10.10.10.10.1
Percentage of Assets us-gaap:AssetUnderConstruction0.00.00.00.00.00.00.00.00.0

us-gaap:BuildingAndBuildingImprovements


Property
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-31
Value440421266249250225225221244232226
Percentage of PropertyPlantAndEquipmentGross52.354.241.433.034.133.436.437.243.343.845.1
Percentage of Assets0.91.00.70.80.80.70.80.80.90.90.9
Percentage of Assets us-gaap:BuildingAndBuildingImprovements0.00.00.00.00.00.00.00.00.00.00.0

us-gaap:ComputerSoftwareIntangibleAsset


Property
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-31
Value1209815018815814212010389
Percentage of PropertyPlantAndEquipmentGross14.312.623.325.021.621.119.417.415.8
Percentage of Assets0.30.20.40.60.50.50.40.40.3
Percentage of Assets us-gaap:ComputerSoftwareIntangibleAsset0.00.00.00.00.00.00.00.00.0

us-gaap:FurnitureAndFixtures


Property
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-31
Value165135129223217194179163158141133
Percentage of PropertyPlantAndEquipmentGross19.617.320.229.529.728.929.127.428.026.726.6
Percentage of Assets0.40.30.30.70.70.60.60.60.60.60.6
Percentage of Assets us-gaap:FurnitureAndFixtures0.00.00.00.00.00.00.00.00.00.00.0

us-gaap:Land


Property
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-31
Value6969707170727175737372
Percentage of PropertyPlantAndEquipmentGross8.39.010.99.49.610.811.612.813.013.914.5
Percentage of Assets0.10.20.20.20.20.20.20.30.30.30.3
Percentage of Assets us-gaap:Land0.00.00.00.00.00.00.00.00.00.00.0

Accumulated Depreciation Depletion And Amortization Property Plant And Equipment

us-gaap:AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment

us-gaap:AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment


Accumulated
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-31
Value291243314438407368343316299267236
Percentage of AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.60.60.81.41.21.21.21.21.11.11.0

Amortization Of Intangible Assets

us-gaap:AmortizationOfIntangibleAssets

us-gaap:AmortizationOfIntangibleAssets


Amortization
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value4.5784.8075.0885.0715.195.0945.2255.0645.1385.1915.3311.6031.3861.31.431.7441.8031.8021.5581.5212.6241.1591.091.0891.091.091.11.10.9490.8160.8420.8350.8750.8761.0650.7420.5450.5750.8950.8960.8960.8961.3651.3241.3231.324
Percentage of AmortizationOfIntangibleAssets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Property Plant And Equipment Net

us-gaap:PropertyPlantAndEquipmentNet

us-gaap:PropertyPlantAndEquipmentNet


Property
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-31
Value556555551542550546535516468468330327320314317320321325325318315311306294284279273275280279277275271270265259261263262264265265265267277279280
Percentage of PropertyPlantAndEquipmentNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets1.21.21.21.21.21.21.31.21.11.20.91.00.90.91.01.01.01.01.01.01.01.01.01.00.90.90.90.91.01.01.01.01.01.00.91.01.01.01.01.11.11.11.11.11.21.21.2

Goodwill

us-gaap:Goodwill

us-gaap:Goodwill


Goodwill
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-04-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-31
Value1048104810481048104810481048104810481048104944745344744744644644544838238238338538538537737737737713364359359359359361358335335335335335335335335335335335
Percentage of Goodwill100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets2.22.22.22.32.32.22.52.42.52.62.81.31.31.31.41.41.41.41.41.21.21.21.21.31.31.21.31.31.40.01.31.31.31.31.31.31.31.31.31.31.31.41.41.41.41.41.41.4

us-gaap:Goodwill us-gaap:StatementBusinessSegments

bokf:Commercial


Goodwillus-gaap:
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-31
Value913913313313272277269268271266266
Percentage of Goodwill87.287.229.970.060.671.971.374.874.979.579.5
Percentage of Assets2.02.20.81.00.80.90.91.01.01.01.1
Percentage of Assets bokf:Commercial0.00.00.00.00.00.00.00.00.00.00.0

bokf:Consumer


Goodwillus-gaap:
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-31
Value4343434339393939393939
Percentage of Goodwill4.14.14.19.78.710.110.310.810.811.611.6
Percentage of Assets0.10.10.10.10.10.10.10.10.10.20.2
Percentage of Assets bokf:Consumer0.00.00.00.00.00.00.00.00.00.00.0

bokf:WealthManagement


Goodwillus-gaap:
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-31
Value9090909071696951512929
Percentage of Goodwill8.78.78.620.315.918.018.414.414.38.98.9
Percentage of Assets0.20.20.20.30.20.20.20.20.20.10.1
Percentage of Assets bokf:WealthManagement0.00.00.00.00.00.00.00.00.00.00.0

Intangible Assets Net Excluding Goodwill

us-gaap:IntangibleAssetsNetExcludingGoodwill

us-gaap:IntangibleAssetsNetExcludingGoodwill


Intangible
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-31
Value105110113118123121125124124129134332829283940424641434443444633343536312425262728339.0989.645101112121315151718
Percentage of IntangibleAssetsNetExcludingGoodwill100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.20.20.20.30.30.30.30.30.30.30.40.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.00.00.00.00.00.10.10.10.10.10.1

us-gaap:IntangibleAssetsNetExcludingGoodwill us-gaap:FiniteLivedIntangibleAssetsByMajorClass

us-gaap:CoreDeposits


Intangible
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-31
Value7083985.7026.510.2680.6611.0931.5692.3944.622
Percentage of IntangibleAssetsNetExcludingGoodwill62.566.972.819.913.90.61.94.45.623.433.5
Percentage of Assets0.20.20.30.00.00.00.00.00.00.00.0
Percentage of Assets us-gaap:CoreDeposits0.00.00.00.00.00.00.00.00.00.00.0

us-gaap:OtherIntangibleAssets


Intangible
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-31
Value4241362240433323267.8259.181
Percentage of IntangibleAssetsNetExcludingGoodwill37.533.127.280.186.199.498.195.694.476.666.5
Percentage of Assets0.10.10.10.10.10.10.10.10.10.00.0
Percentage of Assets us-gaap:OtherIntangibleAssets0.00.00.00.00.00.00.00.00.00.00.0

Operating Lease Right Of Use Asset

us-gaap:OperatingLeaseRightOfUseAsset

us-gaap:OperatingLeaseRightOfUseAsset


Operating
Period End2020-12-312019-12-312019-09-302019-06-302019-03-312019-01-01
Value166180180139137137
Percentage of OperatingLeaseRightOfUseAsset100.0100.0100.0100.0100.0100.0
Percentage of Assets0.40.40.40.30.30.0

Other Assets

us-gaap:OtherAssets

us-gaap:OtherAssets


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-31
Value9016969077877521065547470505469446416447435359370358384353370319270249273248269195354479396359511435486388400453380381387293279241399454405385
Percentage of OtherAssets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets1.91.51.91.71.62.31.31.11.21.21.21.31.31.31.11.11.11.21.11.11.00.90.80.90.80.90.71.21.71.41.31.91.61.81.41.51.81.51.51.51.21.21.01.61.91.71.6

us-gaap:OtherAssets us-gaap:ConsolidatedEntities

srt:ParentCompany


Other
Period End2020-12-312019-12-312018-12-312017-12-31
Value2438324.065
Percentage of OtherAssets2.76.97.41.1
Percentage of Assets0.10.10.10.0
Percentage of Assets srt:ParentCompany0.40.70.70.1

Time Deposit Maturities Year One

us-gaap:TimeDepositMaturitiesYearOne

us-gaap:TimeDepositMaturitiesYearOne


Time
Period End2020-12-31
Value1500
Percentage of TimeDepositMaturitiesYearOne100.0
Percentage of Assets3.2

Long Term Debt

us-gaap:LongTermDebt

us-gaap:LongTermDebt


Long
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-312009-12-31
Value382186217418585457176277372630693053276935165003
Percentage of LongTermDebt100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets8.220.419.518.117.419.912.811.410.810.914.721.3

us-gaap:LongTermDebt us-gaap:LongtermDebtType

bokf:GnmaRepurchaseLiability


Long
Period End2020-12-312019-12-312018-12-312017-12-31
Value19151519
Percentage of LongTermDebt0.50.20.20.3
Percentage of Assets0.00.00.00.1
Percentage of Assets bokf:GnmaRepurchaseLiability0.00.00.00.0

bokf:OtherBorrowings


Long
Period End2020-12-312019-12-312018-12-312017-12-31
Value1882452761245134
Percentage of LongTermDebt49.352.582.687.7
Percentage of Assets4.010.716.115.9
Percentage of Assets bokf:OtherBorrowings0.00.00.00.0

bokf:PaycheckProtectionProgramLiquidityFacility


Long
Period End2020-12-31
Value1635
Percentage of LongTermDebt42.8
Percentage of Assets3.5
Percentage of Assets bokf:PaycheckProtectionProgramLiquidityFacility0.0

us-gaap:FederalFundsPurchased


Long
Period End2020-12-312019-12-312018-12-312017-12-31
Value769339040258
Percentage of LongTermDebt20.139.35.41.0
Percentage of Assets1.68.01.10.2
Percentage of Assets us-gaap:FederalFundsPurchased0.00.00.00.0

us-gaap:FederalHomeLoanBankAdvances


Long
Period End2020-12-312019-12-312018-12-312017-12-31
Value200450061005100
Percentage of LongTermDebt5.252.282.287.1
Percentage of Assets0.410.716.015.8
Percentage of Assets us-gaap:FederalHomeLoanBankAdvances0.00.00.00.0

us-gaap:NotesPayableOtherPayables


Long
Period End2020-12-312019-12-312018-12-312017-12-31
Value27118.83814
Percentage of LongTermDebt0.70.10.10.3
Percentage of Assets0.10.00.00.0
Percentage of Assets us-gaap:NotesPayableOtherPayables0.00.00.00.0

us-gaap:SecuritiesSoldUnderAgreementsToRepurchase


Long
Period End2020-12-312019-12-312018-12-312017-12-31
Value893427615516
Percentage of LongTermDebt23.45.08.38.8
Percentage of Assets1.91.01.61.6
Percentage of Assets us-gaap:SecuritiesSoldUnderAgreementsToRepurchase0.00.00.00.0

us-gaap:SubordinatedDebt


Long
Period End2020-12-312019-12-312018-12-312017-12-31
Value276275275144
Percentage of LongTermDebt7.23.23.72.5
Percentage of Assets0.60.70.70.4
Percentage of Assets us-gaap:SubordinatedDebt0.00.00.00.0

Minority Interest

us-gaap:MinorityInterest

us-gaap:MinorityInterest


Minority
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-31
Value2122257.3227.4287.9128.1248.6499.0378.83610102222222527293134333437383733343435343435353535363635363424212220212019
Percentage of MinorityInterest100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.00.00.10.00.00.00.00.00.00.00.00.00.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.1

Lessee Operating Lease Liability Payments Due Year Two

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearTwo

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearTwo


Lessee
Period End2020-12-31
Value21
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueYearTwo100.0
Percentage of Assets0.0

Lessee Operating Lease Liability Payments Due Year Three

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearThree

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearThree


Lessee
Period End2020-12-31
Value20
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueYearThree100.0
Percentage of Assets0.0

Lessee Operating Lease Liability Payments Due Year Four

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFour

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFour


Lessee
Period End2020-12-31
Value19
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueYearFour100.0
Percentage of Assets0.0

Lessee Operating Lease Liability Payments Due Year Five

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFive

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFive


Lessee
Period End2020-12-31
Value18
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueYearFive100.0
Percentage of Assets0.0

Lessee Operating Lease Liability Payments Due After Year Five

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive


Lessee
Period End2020-12-31
Value116
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive100.0
Percentage of Assets0.2

Stockholders Equity

us-gaap:StockholdersEquity

us-gaap:StockholdersEquity


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-31
Value53325239526652185096502648554829470945224432361535533495349534883422334132743398336833213230337733753357330232433212310930202991295730112957297528852834275027322667257625212503242823122205
Percentage of StockholdersEquity100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets11.311.011.311.311.110.711.511.211.211.311.710.910.510.510.810.610.610.210.010.410.510.610.311.011.011.111.411.111.511.411.211.010.611.010.511.011.311.010.810.911.010.910.510.310.29.89.4

us-gaap:StockholdersEquity us-gaap:ConsolidatedEntities

srt:ParentCompany


Stockholders
Period End2020-12-312019-12-312018-12-312017-12-31
Value5266485544323495
Percentage of StockholdersEquity100.0100.0100.0100.0
Percentage of Assets11.311.511.710.8
Percentage of Assets srt:ParentCompany94.994.593.995.7

Stockholders Equity Including Portion Attributable To Noncontrolling Interest

us-gaap:StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest

us-gaap:StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312008-12-312007-12-31
Value5354526252915226510450344863483747184531444336253576351735183514344933703306343234023356326734163412339033363277324731443054302629923047299330122922287027862767269225972543252324502332222518601954
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets11.411.111.311.311.110.711.511.211.311.411.710.910.610.510.910.610.710.310.110.510.610.710.411.211.111.211.511.311.711.511.311.110.811.110.611.111.411.110.911.011.111.010.610.410.39.99.50.00.0

us-gaap:StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest us-gaap:StatementEquityComponents

us-gaap:AccumulatedOtherComprehensiveIncome


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312008-12-312007-12-31
Value22622133536537033110413398-3.531-72.585-162.362-135.305-111.191-36.1746.7577.964-5.221-10.9679511793218551905623496.795-25.623-2.6261913314916213916112816314610810713911347-10.74-222.886-31.234
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest4.24.26.37.07.36.62.22.82.1-0.1-1.6-4.5-3.8-3.2-1.00.20.2-0.2-0.32.83.52.80.72.51.52.71.70.71.50.2-0.8-0.10.64.45.05.44.85.64.65.95.44.24.25.54.62.0-0.5-12.0-1.6
Percentage of Assets0.50.50.70.80.80.70.20.30.2-0.0-0.2-0.5-0.4-0.3-0.10.00.0-0.0-0.00.30.40.30.10.30.20.30.20.10.20.0-0.1-0.00.10.50.50.60.50.60.50.70.60.50.50.60.50.2-0.00.00.0
Percentage of Assets us-gaap:AccumulatedOtherComprehensiveIncome0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:AdditionalPaidInCapital


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312008-12-312007-12-31
Value1373137113681366135713541350134613431340133410441040104110351028101710091006995990987982973970959954948938913898890884876859849836829818799794790782772769764758743722
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest25.626.125.926.126.626.927.827.828.529.630.028.829.129.629.429.329.529.930.429.029.129.430.128.528.428.328.628.928.929.129.429.429.528.828.728.228.628.929.428.929.530.430.830.631.432.834.140.036.9
Percentage of Assets2.92.92.93.03.02.93.23.13.23.43.53.13.13.13.23.13.23.13.13.03.13.13.13.23.23.23.33.33.43.33.33.33.23.23.13.13.33.23.23.23.33.33.33.23.23.33.20.00.0
Percentage of Assets us-gaap:AdditionalPaidInCapital0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:CommonStock


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312008-12-312007-12-31
Value0.0050.0050.0050.0050.0050.0050.0050.0050.0050.0050.0050.0040.0040.0040.0040.0040.0040.0040.0040.0040.0040.0040.0040.0040.0040.0040.0040.0040.0040.0040.0040.0040.0040.0040.0040.0040.0040.0040.0040.0040.0040.0040.0040.0040.0040.0040.0040.0040.004
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of Assets us-gaap:CommonStock0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:NoncontrollingInterest


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312008-12-312007-12-31
Value2122257.3227.4287.9128.1248.6499.0378.836101022222225272931343334373837333434353434353535353636353634242122202120191318
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest0.40.40.50.10.10.20.20.20.20.20.20.30.60.60.70.70.80.91.01.01.01.01.11.11.11.01.01.01.11.11.11.21.21.21.21.21.31.31.31.30.90.80.90.80.90.90.90.71.0
Percentage of Assets0.00.00.10.00.00.00.00.00.00.00.00.00.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.00.0
Percentage of Assets us-gaap:NoncontrollingInterest0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:Parent


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312008-12-312007-12-31
Value5332523952665218509650264855482947094522443236153553349534953488342233413274339833683321323033773375335733023243321231093020299129573011295729752885283427502732266725762521250324282312220518461935
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest99.699.699.599.999.999.899.899.899.899.899.899.799.499.499.399.399.299.199.099.099.099.098.998.998.999.099.099.098.998.998.998.898.898.898.898.898.798.798.798.799.199.299.199.299.199.199.199.399.0
Percentage of Assets11.311.011.311.311.110.711.511.211.211.311.710.910.510.510.810.610.610.210.010.410.510.610.311.011.011.111.411.111.511.411.211.010.611.010.511.011.311.010.810.911.010.910.510.310.29.89.40.00.0
Percentage of Assets us-gaap:Parent0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:RetainedEarnings


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312008-12-312007-12-31
Value4214408339733856373737093729365535483447336932973212312730482999294228832823280127552718270426732627257625302495244723982349230322532199213721482086201419531908184217911743170116541607156314271332
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest78.777.675.173.873.273.776.775.675.276.175.890.989.888.986.685.385.385.585.481.681.081.082.878.377.076.075.976.175.476.376.976.175.372.271.471.371.470.270.169.068.469.068.667.467.568.970.376.768.2
Percentage of Assets8.98.68.58.48.27.98.88.58.58.68.99.99.59.49.49.19.18.88.68.58.68.78.68.78.68.58.78.68.88.88.78.58.18.07.67.98.27.87.77.67.67.67.37.07.06.86.60.00.0
Percentage of Assets us-gaap:RetainedEarnings0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:TreasuryStock


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312008-12-312007-12-31
Value-481.027-437.23-411.344-368.894-368.894-368.894-329.906-307.062-281.125-261.0-198.995-564.123-564.123-562.601-552.845-545.441-545.441-545.441-544.052-495.031-494.675-476.905-477.165-355.67-273.468-269.749-239.979-223.849-222.686-209.152-202.346-200.255-199.429-197.519-188.883-184.422-175.89-171.593-150.664-138.829-114.856-114.734-112.802-109.498-109.481-107.909-105.857-101.329-88.428
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest-9.0-8.3-7.8-7.1-7.2-7.3-6.8-6.3-6.0-5.8-4.5-15.6-15.8-16.0-15.7-15.5-15.8-16.2-16.5-14.4-14.5-14.2-14.6-10.4-8.0-8.0-7.2-6.8-6.9-6.7-6.6-6.6-6.7-6.5-6.3-6.1-6.0-6.0-5.4-5.0-4.3-4.4-4.4-4.3-4.5-4.6-4.8-5.4-4.5
Percentage of Assets-1.0-0.9-0.9-0.8-0.8-0.8-0.8-0.7-0.7-0.7-0.5-1.7-1.7-1.7-1.7-1.7-1.7-1.7-1.7-1.5-1.5-1.5-1.5-1.2-0.9-0.9-0.8-0.8-0.8-0.8-0.7-0.7-0.7-0.7-0.7-0.7-0.7-0.7-0.6-0.6-0.5-0.5-0.5-0.4-0.5-0.5-0.50.00.0
Percentage of Assets us-gaap:TreasuryStock0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Common Stock Value

us-gaap:CommonStockValue

us-gaap:CommonStockValue


Common
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-31
Value5000.05000.05000.05000.05000.05000.05000.05000.05000.05000.05000.04000.04000.04000.04000.04000.04000.04000.04000.04000.04000.04000.04000.04000.04000.04000.04000.04000.04000.04000.04000.04000.04000.04000.04000.04000.04000.04000.04000.04000.04000.04000.04000.04000.04000.04000.04000.0
Percentage of CommonStockValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:CommonStockValue us-gaap:ConsolidatedEntities

srt:ParentCompany


Common
Period End2020-12-312019-12-312018-12-312017-12-31
Value5000.05000.05000.04000.0
Percentage of CommonStockValue100.0100.0100.0100.0
Percentage of Assets0.00.00.00.0
Percentage of Assets srt:ParentCompany0.00.00.00.0

Additional Paid In Capital Common Stock

us-gaap:AdditionalPaidInCapitalCommonStock

us-gaap:AdditionalPaidInCapitalCommonStock


Additional
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-31
Value1373137113681366135713541350134613431340133410441040104110351028101710091006995990987982973970959954948938913898890884876859849836829818799794790782772769764758
Percentage of AdditionalPaidInCapitalCommonStock100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets2.92.92.93.03.02.93.23.13.23.43.53.13.13.13.23.13.23.13.13.03.13.13.13.23.23.23.33.33.43.33.33.33.23.23.13.13.33.23.23.23.33.33.33.23.23.33.2

us-gaap:AdditionalPaidInCapitalCommonStock us-gaap:ConsolidatedEntities

srt:ParentCompany


Additional
Period End2020-12-312019-12-312018-12-312017-12-31
Value1368135013341035
Percentage of AdditionalPaidInCapitalCommonStock100.0100.0100.0100.0
Percentage of Assets2.93.23.53.2
Percentage of Assets srt:ParentCompany24.726.328.328.4

Retained Earnings Accumulated Deficit

us-gaap:RetainedEarningsAccumulatedDeficit

us-gaap:RetainedEarningsAccumulatedDeficit


Retained
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-31
Value42144083397338563737370937293655354834473369329732123127304829992942288328232801275527182704267326272576253024952447239823492303225321992137214820862014195319081842179117431701165416071563
Percentage of RetainedEarningsAccumulatedDeficit100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets8.98.68.58.48.27.98.88.58.58.68.99.99.59.49.49.19.18.88.68.58.68.78.68.78.68.58.78.68.88.88.78.58.18.07.67.98.27.87.77.67.67.67.37.07.06.86.6

us-gaap:RetainedEarningsAccumulatedDeficit us-gaap:ConsolidatedEntities

srt:ParentCompany


Retained
Period End2020-12-312019-12-312018-12-312017-12-31
Value3973372933693048
Percentage of RetainedEarningsAccumulatedDeficit100.0100.0100.0100.0
Percentage of Assets8.58.88.99.4
Percentage of Assets srt:ParentCompany71.672.671.483.5

Accumulated Other Comprehensive Income Loss Net Of Tax

us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax

us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax


Accumulated
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312008-12-31
Value22622133536537033110413398-3.531-72.585-162.362-135.305-111.191-36.1746.7577.964-5.221-10.9679511793218551905623496.795-25.623-2.6261913314916213916112816314610810713911347-10.74-222.886
Percentage of AccumulatedOtherComprehensiveIncomeLossNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.50.50.70.80.80.70.20.30.2-0.0-0.2-0.5-0.4-0.3-0.10.00.0-0.0-0.00.30.40.30.10.30.20.30.20.10.20.0-0.1-0.00.10.50.50.60.50.60.50.70.60.50.50.60.50.2-0.00.0

us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax us-gaap:ConsolidatedEntities

srt:ParentCompany


Accumulated
Period End2020-12-312019-12-312018-12-312017-12-31
Value335104-198.995-552.845
Percentage of AccumulatedOtherComprehensiveIncomeLossNetOfTax100.0100.0274.21528.3
Percentage of Assets0.70.2-0.5-1.7
Percentage of Assets srt:ParentCompany6.12.0-4.2-15.1

us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax us-gaap:StatementEquityComponents

us-gaap:AccumulatedDefinedBenefitPlansAdjustment


Accumulated
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302009-12-312008-12-31
Value0.8360.8360.836-0.073-0.073-0.073-0.073-1.586-1.586-1.586-1.586-0.789-0.789-0.789-0.789-1.877-1.88-1.88-1.88-1.765-1.765-1.765-1.765-2.868-2.868-2.868-2.868-3.312-3.312-3.312-3.311-8.296-8.296-8.296-8.296-12.921-12.92-12.92-12.742-13.777-13.777-13.776-13.777-16.245-16.245-16.473-17.039
Percentage of AccumulatedOtherComprehensiveIncomeLossNetOfTax0.40.40.2-0.0-0.0-0.0-0.1-1.2-1.644.92.20.50.60.72.2-27.8-23.636.017.1-1.8-1.5-1.9-8.2-3.3-5.5-3.2-5.1-14.2-6.7-48.712.9315.9-43.6-6.2-5.5-8.0-9.3-8.0-9.9-8.4-9.4-12.7-12.8-11.7-14.3153.47.6
Percentage of Assets0.00.00.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.1-0.0-0.0-0.1-0.1-0.1-0.1-0.1-0.1-0.10.0
Percentage of Assets us-gaap:AccumulatedDefinedBenefitPlansAdjustment0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:AccumulatedNetUnrealizedInvestmentGainLoss


Accumulated
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302009-12-312008-12-31
Value225220335365370331104135100-1.945-70.999-161.573-134.516-110.402-35.3858.6349.844-3.341-9.0879711994238854925926529.438-23.1754.5372513915517114816913520519512215719418459-204.648
Percentage of AccumulatedOtherComprehensiveIncomeLossNetOfTax99.699.699.8100.0100.0100.0100.1101.2101.655.197.899.599.499.397.8127.8123.664.082.9101.8101.5101.9107.9103.2105.2102.9104.5112.6105.7138.990.4-172.8135.7104.7103.8105.9106.3105.0105.2125.6133.8113.5146.3140.0162.4-556.591.8
Percentage of Assets0.50.50.70.80.80.70.20.30.2-0.0-0.2-0.5-0.4-0.3-0.10.00.0-0.0-0.00.30.40.30.10.30.20.30.20.10.20.0-0.10.00.10.50.60.60.60.70.50.80.80.50.70.80.80.30.0
Percentage of Assets us-gaap:AccumulatedNetUnrealizedInvestmentGainLoss0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Treasury Stock Value

us-gaap:TreasuryStockValue

us-gaap:TreasuryStockValue


Treasury
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-31
Value481437411368368368329307281261198564564562552545545545544495494476477355273269239223222209202200199197188184175171-150.664138114114112109109107105
Percentage of TreasuryStockValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets1.00.90.90.80.80.80.80.70.70.70.51.71.71.71.71.71.71.71.71.51.51.51.51.20.90.90.80.80.80.80.70.70.70.70.70.70.70.7-0.60.60.50.50.50.40.50.50.5

us-gaap:TreasuryStockValue us-gaap:ConsolidatedEntities

srt:ParentCompany


Treasury
Period End2020-12-312019-12-312018-12-312017-12-31
Value411-329.906-72.585-36.174
Percentage of TreasuryStockValue100.0-100.0-36.5-6.5
Percentage of Assets0.9-0.8-0.2-0.1
Percentage of Assets srt:ParentCompany7.4-6.4-1.5-1.0

Minority Interest

us-gaap:MinorityInterest

us-gaap:MinorityInterest


Minority
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-31
Value2122257.3227.4287.9128.1248.6499.0378.83610102222222527293134333437383733343435343435353535363635363424212220212019
Percentage of MinorityInterest100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.00.00.10.00.00.00.00.00.00.00.00.00.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.1

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

us-gaap:AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue

us-gaap:AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue


Adjustments
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-30
Value1.3662.7241.5138.7542.883.2453.9243.4712.7355.414-1.7464.094-1.1923.0736.2128.4077.381.6032.9021.8393.72.034.2762.8853.0571.865-2.135-9.967182.8632.5323.182.108-0.7511.6961.5312.7992.0042.2652.328
Percentage of AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue us-gaap:StatementEquityComponents

us-gaap:AdditionalPaidInCapital


Adjustments
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-30
Value1.3662.7241.5138.7542.883.2453.9243.4712.7355.414-1.7464.094-1.1923.0736.2128.4077.381.6032.9021.8393.72.034.2762.8853.0571.865-2.135-9.967182.8632.5323.182.108-0.7511.6961.5312.7992.0042.2652.328
Percentage of AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of Assets us-gaap:AdditionalPaidInCapital0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:Parent


Adjustments
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-30
Value1.3662.7241.5138.7542.883.2453.9243.4712.7355.414-1.7464.094-1.1923.0736.2128.4077.381.6032.9021.8393.72.034.2762.8853.0571.865-2.135-9.967182.8632.5323.182.108-0.7511.6961.5312.7992.0042.2652.328
Percentage of AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of Assets us-gaap:Parent0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Minority Interest Decrease From Distributions To Noncontrolling Interest Holders

us-gaap:MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders

us-gaap:MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders


Minority
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value1.9940.661160.1640.0770.1170.9550.0150.0161.7539.713120.4820.4392.5311.5922.7932.6612.480.641.2760.7973.328-0.812.4331.1871.4551.4040.3790.7031.752-0.1612.61-0.982-2.048-3.7011.028-0.220.315100.23-0.6051.540.028-1.4390.922
Percentage of MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders us-gaap:StatementEquityComponents

us-gaap:NoncontrollingInterest


Minority
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value1.9940.661160.1640.0770.1170.9550.0150.0161.7539.713120.4820.4392.5311.5922.7932.6612.480.641.2760.7973.328-0.812.4331.1871.4551.4040.3790.7031.752-0.1610.6460.9822.0482.0851.028-0.220.315100.23-0.6051.540.028-1.4390.922
Percentage of MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.024.8-100.0-100.0-56.3100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of Assets us-gaap:NoncontrollingInterest0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Net Cash Provided By Used In Operating Activities

us-gaap:NetCashProvidedByUsedInOperatingActivities

us-gaap:NetCashProvidedByUsedInOperatingActivities


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value-268.889-218.877-776.783-425.9332529-1742.802582-379.479428-1105.986-162.598547-788.204-148.337392-405.562397-168.731398-676.8921795.23812326085-174.848-13.459-6.843-76.7026016729633239143577431617533-239.7935823411542-26.513
Percentage of NetCashProvidedByUsedInOperatingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of InterestAndDividendIncomeOperating-90.9-73.4-243.5-144.6825.5-499.5157.6-96.0109.8-294.1-44.5180.4-267.9-55.9153.3-158.8168.8-74.5184.7-323.488.92.662.7134.644.7-94.7-7.2-3.7-42.033.789.3161.018.1126.773.729.336.6159.988.516.5-116.6177.3118.953.019.4-12.1

Net Cash Provided By Used In Investing Activities

us-gaap:NetCashProvidedByUsedInInvestingActivities

us-gaap:NetCashProvidedByUsedInInvestingActivities


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value1000-22.064415152-1109.554-1917.448235-403.757-1952.083-203.017-771.417-172.084-683.237-180.893406-333.686-19.38968624117-459.8330-777.671-144.898-443.467-635.268-191.726-70.185-189.18217-27.949622-470.839312-438.737-1387.57291-833.053-597.869-626.723215-555.279312-358.644-142.572231
Percentage of NetCashProvidedByUsedInInvestingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of InterestAndDividendIncomeOperating338.3-7.4130.351.7-362.1-549.563.6-102.2-499.5-54.0-211.0-56.7-232.3-68.2158.9-130.6-8.2303.111.656.3-227.315.3-395.2-74.8-231.2-344.2-102.7-38.2-103.69.5-14.9338.7-254.5165.6-225.8-707.7143.3-420.3-301.9-304.6104.9-274.8158.7-165.3-65.5105.3

Net Cash Provided By Used In Financing Activities

us-gaap:NetCashProvidedByUsedInFinancingActivities

us-gaap:NetCashProvidedByUsedInFinancingActivities


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value-891.77647953532-1145.0133374-785.72667415751448831-587.602330611-955.591572-504.501-287.65-502.777769373-367.105978-359.1223099441151294259189-213.179-836.451570-892.9479661306-432.337236436454326-264.078-473.80858620-193.723
Percentage of NetCashProvidedByUsedInFinancingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of InterestAndDividendIncomeOperating-301.4160.8167.810.9-373.7967.1-212.4170.6403.2385.1227.4-193.8112.5230.4-373.6224.3-214.5-127.1-233.1367.6184.9-181.9497.3-185.4161.4512.061.9704.2142.2105.7-113.7-454.9308.1-472.5497.4666.2-212.9119.1220.2221.1158.7-130.7-240.3270.59.6-88.3

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

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect


Cash
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value-159.741238174-241.401274-285.74432-108.90352139
Percentage of CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of InterestAndDividendIncomeOperating-54.080.054.6-81.989.7-81.98.7-27.613.537.0

Net Cash Provided By Used In Operating Activities

us-gaap:NetCashProvidedByUsedInOperatingActivities

us-gaap:NetCashProvidedByUsedInOperatingActivities


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value-268.889-218.877-776.783-425.9332529-1742.802582-379.479428-1105.986-162.598547-788.204-148.337392-405.562397-168.731398-676.8921795.23812326085-174.848-13.459-6.843-76.7026016729633239143577431617533-239.7935823411542-26.513
Percentage of NetCashProvidedByUsedInOperatingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of InterestAndDividendIncomeOperating-90.9-73.4-243.5-144.6825.5-499.5157.6-96.0109.8-294.1-44.5180.4-267.9-55.9153.3-158.8168.8-74.5184.7-323.488.92.662.7134.644.7-94.7-7.2-3.7-42.033.789.3161.018.1126.773.729.336.6159.988.516.5-116.6177.3118.953.019.4-12.1

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
Value16614615415464621101421371101081171141057285888850746542597479746475757672757987828797836685696458646360
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 InterestAndDividendIncomeOperating56.249.048.352.321.117.829.836.035.229.429.738.738.939.828.333.537.539.023.235.532.521.130.338.741.340.634.541.141.642.838.941.243.246.542.544.648.142.233.841.433.532.129.829.629.227.4

us-gaap:NetIncomeLoss us-gaap:ConsolidationItems

us-gaap:CorporateNonSegment


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
Value61503621-81.593-58.39-0.9520.812-11.258-14.8344.678-6.2010.574-2.696-11.216-6.35-3.3982.542-7.240.413-2.046
Percentage of NetIncomeLoss36.734.323.713.9-126.1-94.1-0.90.6-8.2-13.44.3-5.30.5-2.6-15.5-7.4-3.92.9-14.50.6-3.1
Percentage of InterestAndDividendIncomeOperating20.616.811.57.3-26.6-16.7-0.30.2-2.9-3.91.3-2.00.2-1.0-4.4-2.5-1.41.1-3.40.2-1.0
Percentage of InterestAndDividendIncomeOperating us-gaap:CorporateNonSegment0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:NetIncomeLoss us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments

us-gaap:OperatingSegments, bokf:Commercial


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-30
Value72697475807480101106868484877963696863655552376545454644414036403936353533
Percentage of NetIncomeLoss43.647.748.648.8125.2120.872.671.477.777.978.072.576.675.187.781.477.572.3130.075.480.387.2109.260.157.661.569.054.452.747.555.252.445.139.942.938.2
Percentage of InterestAndDividendIncomeOperating24.523.423.525.526.421.521.725.727.422.923.128.029.829.924.827.329.028.230.126.826.118.433.123.223.824.923.822.421.920.321.521.619.518.618.217.0
Percentage of InterestAndDividendIncomeOperating us-gaap:OperatingSegments bokf:Commercial0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:OperatingSegments, bokf:Consumer


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-30
Value1.6986.849142631228.2871616151.9439.1626.1029.4065.5446.7347.4224.746-13.0868.7624.2310.1193.8665.0737.483.9344.164127.798.381111117172022
Percentage of NetIncomeLoss1.04.79.317.049.336.97.511.711.914.11.87.85.38.97.67.98.45.4-26.211.86.40.36.56.89.45.36.516.410.310.916.015.622.220.324.425.2
Percentage of InterestAndDividendIncomeOperating0.62.34.58.910.46.62.24.24.24.10.53.02.13.52.22.63.22.1-6.14.22.10.12.02.63.92.12.26.84.34.76.26.49.69.510.411.2
Percentage of InterestAndDividendIncomeOperating us-gaap:OperatingSegments bokf:Consumer0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:OperatingSegments, bokf:WealthManagement


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-30
Value3119283133222223252317292019141515145.3089.108106.9773.9643.874.194.4844.474.7965.1622.4761.813.9650.9261.8844.7485.038
Percentage of NetIncomeLoss18.713.318.420.351.636.420.716.318.621.415.925.017.618.620.218.218.016.210.612.316.416.46.75.25.36.06.96.36.83.22.55.21.22.15.85.8
Percentage of InterestAndDividendIncomeOperating10.56.58.910.610.96.56.25.96.56.34.79.76.87.45.76.16.76.32.54.45.33.52.02.02.22.42.42.62.81.41.02.20.51.02.42.6
Percentage of InterestAndDividendIncomeOperating us-gaap:OperatingSegments bokf:WealthManagement0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Profit Loss

us-gaap:ProfitLoss

us-gaap:ProfitLoss


Profit
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value16714415415464611101411371101081171151057285888849756640617580756576767773767989838799836785716459636560
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 InterestAndDividendIncomeOperating56.548.448.552.321.017.830.035.935.329.329.638.839.139.728.333.637.839.223.135.932.820.331.039.141.840.735.141.442.043.039.441.443.247.143.044.849.042.034.341.534.932.030.029.230.127.5

us-gaap:ProfitLoss us-gaap:ConsolidationItems

us-gaap:CorporateNonSegment


Profit
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-30
Value61483721-82.0-58.485-0.5220.439-11.041-15.1814.599-5.9121.357-2.911-11.343-6.209-2.6792.85-7.3571.248-1.575
Percentage of ProfitLoss36.933.523.914.0-127.6-94.4-0.50.3-8.0-13.84.2-5.01.2-2.8-15.7-7.2-3.03.2-14.71.7-2.4
Percentage of InterestAndDividendIncomeOperating20.916.211.67.3-26.8-16.8-0.10.1-2.8-4.01.3-1.90.5-1.1-4.4-2.4-1.11.3-3.40.6-0.8
Percentage of InterestAndDividendIncomeOperating us-gaap:CorporateNonSegment0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:ProfitLoss us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments

us-gaap:OperatingSegments, bokf:Commercial


Profit
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-30
Value72697475807480101106868484877963696863655552376545454644414036403936353533
Percentage of ProfitLoss43.548.348.448.7126.0121.072.471.677.678.178.172.376.175.287.881.276.972.1130.374.579.790.6106.559.456.961.367.754.052.247.254.552.245.139.542.438.0
Percentage of InterestAndDividendIncomeOperating24.523.423.525.526.421.521.725.727.422.923.128.029.829.924.827.329.028.230.126.826.118.433.123.223.824.923.822.421.920.321.521.619.518.618.217.0
Percentage of InterestAndDividendIncomeOperating us-gaap:OperatingSegments bokf:Commercial0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:OperatingSegments, bokf:Consumer


Profit
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-30
Value1.6986.849142631228.2871616151.9439.1626.1029.4065.5446.7347.4224.746-13.0868.7624.2310.1193.8665.0737.483.9344.164127.798.381111117172022
Percentage of ProfitLoss1.04.79.217.049.637.07.511.711.914.11.87.85.38.97.77.88.45.4-26.211.76.40.36.36.79.35.26.316.310.210.915.815.622.220.124.125.1
Percentage of InterestAndDividendIncomeOperating0.62.34.58.910.46.62.24.24.24.10.53.02.13.52.22.63.22.1-6.14.22.10.12.02.63.92.12.26.84.34.76.26.49.69.510.411.2
Percentage of InterestAndDividendIncomeOperating us-gaap:OperatingSegments bokf:Consumer0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:OperatingSegments, bokf:WealthManagement


Profit
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-30
Value3119283133222223252317292019141515145.3089.108106.9773.9643.874.194.4844.474.7965.1622.4761.813.9650.9261.8844.7485.038
Percentage of ProfitLoss18.613.418.420.351.936.420.616.418.521.515.925.017.518.620.218.217.816.110.612.116.317.06.55.15.26.06.86.36.73.22.45.21.22.15.75.7
Percentage of InterestAndDividendIncomeOperating10.56.58.910.610.96.56.25.96.56.34.79.76.87.45.76.16.76.32.54.45.33.52.02.02.22.42.42.62.81.41.02.20.51.02.42.6
Percentage of InterestAndDividendIncomeOperating us-gaap:OperatingSegments bokf:WealthManagement0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:ProfitLoss us-gaap:StatementEquityComponents

us-gaap:NoncontrollingInterest


Profit
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-31
Value0.686-1.7520.4850.058-0.407-0.0950.43-0.3730.217-0.347-0.0790.2890.783-0.215-0.1270.1410.7190.308-0.1170.8350.471-1.5761.4750.9251.0430.2511.2630.4940.8340.4530.9460.324-0.0431.0951.0510.4711.833-0.4220.9110.3582.688-0.008
Percentage of ProfitLoss0.4-1.20.30.0-0.6-0.20.4-0.30.2-0.3-0.10.20.7-0.2-0.20.20.80.3-0.21.10.7-3.82.41.21.30.31.90.61.10.61.30.4-0.11.21.30.51.8-0.51.30.43.7-0.0
Percentage of InterestAndDividendIncomeOperating0.2-0.60.20.0-0.1-0.00.1-0.10.1-0.1-0.00.10.3-0.1-0.00.10.30.1-0.10.40.2-0.80.70.50.50.10.70.30.50.30.50.2-0.00.60.50.20.9-0.20.50.21.3-0.0
Percentage of InterestAndDividendIncomeOperating us-gaap:NoncontrollingInterest0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:Parent


Profit
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-31
Value166146154154646211014213711010811711410572858888507465425974797464757576727579878287978366856964
Percentage of ProfitLoss99.6101.299.7100.0100.6100.299.6100.399.8100.3100.199.899.3100.2100.299.899.299.7100.298.999.3103.897.698.898.799.798.199.498.999.498.799.6100.198.898.799.598.2100.598.799.696.3100.0
Percentage of InterestAndDividendIncomeOperating56.249.048.352.321.117.829.836.035.229.429.738.738.939.828.333.537.539.023.235.532.521.130.338.741.340.634.541.141.642.838.941.243.246.542.544.648.142.233.841.433.532.1
Percentage of InterestAndDividendIncomeOperating us-gaap:Parent0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:RetainedEarnings


Profit
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-31
Value166146154154646211014213711010811711410572858888507465425974797464757576727579878287978366856964
Percentage of ProfitLoss99.6101.299.7100.0100.6100.299.6100.399.8100.3100.199.899.3100.2100.299.899.299.7100.298.999.3103.897.698.898.799.798.199.498.999.498.799.6100.198.898.799.598.2100.598.799.696.3100.0
Percentage of InterestAndDividendIncomeOperating56.249.048.352.321.117.829.836.035.229.429.738.738.939.828.333.537.539.023.235.532.521.130.338.741.340.634.541.141.642.838.941.243.246.542.544.648.142.233.841.433.532.1
Percentage of InterestAndDividendIncomeOperating us-gaap:RetainedEarnings0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Share Based Compensation

us-gaap:ShareBasedCompensation

us-gaap:ShareBasedCompensation


Share
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value1.3662.7241.5138.7542.883.2453.9243.4712.7355.414-1.7464.094-1.1923.0736.2128.4077.381.6032.9021.8393.72.034.2762.8853.0571.865-2.1355.1053.8472.8632.5323.182.108-0.7511.6961.5312.7992.0042.2652.3282.1882.6151.9291.8721.8862.473
Percentage of ShareBasedCompensation100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Net Cash Provided By Used In Investing Activities

us-gaap:NetCashProvidedByUsedInInvestingActivities

us-gaap:NetCashProvidedByUsedInInvestingActivities


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value1000-22.064415152-1109.554-1917.448235-403.757-1952.083-203.017-771.417-172.084-683.237-180.893406-333.686-19.38968624117-459.8330-777.671-144.898-443.467-635.268-191.726-70.185-189.18217-27.949622-470.839312-438.737-1387.57291-833.053-597.869-626.723215-555.279312-358.644-142.572231
Percentage of NetCashProvidedByUsedInInvestingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of InterestAndDividendIncomeOperating338.3-7.4130.351.7-362.1-549.563.6-102.2-499.5-54.0-211.0-56.7-232.3-68.2158.9-130.6-8.2303.111.656.3-227.315.3-395.2-74.8-231.2-344.2-102.7-38.2-103.69.5-14.9338.7-254.5165.6-225.8-707.7143.3-420.3-301.9-304.6104.9-274.8158.7-165.3-65.5105.3

Payments To Acquire Productive Assets

us-gaap:PaymentsToAcquireProductiveAssets

us-gaap:PaymentsToAcquireProductiveAssets


Payments
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value3163-866.106590297119765713411694128625979644362405231756159351081131363520915.289417317369.19231-109.05232127.443-87.14595159.17
Percentage of PaymentsToAcquireProductiveAssets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Net Cash Provided By Used In Financing Activities

us-gaap:NetCashProvidedByUsedInFinancingActivities

us-gaap:NetCashProvidedByUsedInFinancingActivities


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value-891.77647953532-1145.0133374-785.72667415751448831-587.602330611-955.591572-504.501-287.65-502.777769373-367.105978-359.1223099441151294259189-213.179-836.451570-892.9479661306-432.337236436454326-264.078-473.80858620-193.723
Percentage of NetCashProvidedByUsedInFinancingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of InterestAndDividendIncomeOperating-301.4160.8167.810.9-373.7967.1-212.4170.6403.2385.1227.4-193.8112.5230.4-373.6224.3-214.5-127.1-233.1367.6184.9-181.9497.3-185.4161.4512.061.9704.2142.2105.7-113.7-454.9308.1-472.5497.4666.2-212.9119.1220.2221.1158.7-130.7-240.3270.59.6-88.3

Payments Of Dividends Common Stock

us-gaap:PaymentsOfDividendsCommonStock

us-gaap:PaymentsOfDividendsCommonStock


Payments
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value35363635353636353536353229292929282828282828282828282827272727252525932525222218181616161616
Percentage of PaymentsOfDividendsCommonStock100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Payments For Repurchase Of Common Stock

us-gaap:PaymentsForRepurchaseOfCommonStock

us-gaap:PaymentsForRepurchaseOfCommonStock


Payments
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-31
Value4320420.00.03322252060450.00.8247.5847.4030.00.00.0490.001170.0119800.029120.00.00.00.00.00.00.00.00.02.126183.58220.00.00.0
Percentage of PaymentsForRepurchaseOfCommonStock100.0100.0100.00.00.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.00.00.00.0100.0100.0100.00.0100.0100.00.0100.0100.00.00.00.00.00.00.00.00.00.0100.0100.0100.0100.00.00.00.0

Debt Instrument Interest Rate Stated Percentage

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

us-gaap:DebtInstrumentInterestRateStatedPercentage

bokf:Subordinateddebenturesacquired2015issuance, us-gaap:SubordinatedDebt


Debt
Period End2020-12-312019-12-31
Value5.6250.05625
Percentage of DebtInstrumentInterestRateStatedPercentage100.0100.0
Percentage of LongTermDebtAndCapitalLeaseObligations0.00.0
Percentage of LongTermDebtAndCapitalLeaseObligations bokf:Subordinateddebenturesacquired2015issuance us-gaap:SubordinatedDebt0.00.0

Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber us-gaap:AwardType

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber

us-gaap:EmployeeStockOption


Share
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-31
Value17671.036100.063058.0117550.0218520.0480040.0793890.01135100.01890800.02621300.03135300.0
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

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

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice us-gaap:AwardType

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice

us-gaap:EmployeeStockOption


Share
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-31
Value57.3556.7554.8953.2651.9549.7549.0549.0948.2947.0145.62
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Deferred Tax Liabilities

us-gaap:DeferredTaxLiabilities

us-gaap:DeferredTaxLiabilities


Deferred
Period End2020-12-312019-12-312015-12-312014-12-312011-12-312010-12-31
Value9.51261.3857.229196167
Percentage of DeferredTaxLiabilities100.0100.0100.0100.0100.0100.0

Unrecognized Tax Benefits

us-gaap:UnrecognizedTaxBenefits

us-gaap:UnrecognizedTaxBenefits


Unrecognized
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-312009-12-312008-12-31
Value22201818151313121212111213
Percentage of UnrecognizedTaxBenefits100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

bokf:Allegedtotalofjudgmentagainstnursinghomeoperator us-gaap:LitigationCase, us-gaap:LitigationStatus

bokf:Allegedtotalofjudgmentagainstnursinghomeoperator

bokf:MisuseofRevenuesPledgedtoMunicipalBonds, us-gaap:PendingLitigation


Allegedtotalofjudgmentagainstnursinghomeoperatorus-gaap:
Period End2021-06-302021-03-312020-12-31
Value08000000.00
Percentage of Allegedtotalofjudgmentagainstnursinghomeoperator0.0100.00.0

bokf:AverageAssetsForReportingPeriod

bokf:AverageAssetsForReportingPeriod


Average
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-30
Value50196503105644893349757457207134358240844396721162336953390633724170330083236832954229326463198631508170307693046429970381281152748627238-93.78827254276592751340526588255382551638524621239792373931924192
Percentage of AverageAssetsForReportingPeriod100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

bokf:AverageAssetsForReportingPeriod us-gaap:ConsolidationItems

us-gaap:CorporateNonSegment


Average
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-30
Value-7252.201-6137.823-430.039-5171.057-3460.078-1541.623-308.211-611.075-1127.3572658851-1626.067-1015.235-632.763-7.999-657.56-836.193-124.137-133.798470472
Percentage of AverageAssetsForReportingPeriod-14.4-12.2-76.2-10.6-7.0-3.4-43.2-1.4-2.86.773.3-4.8-3.0-1.9-4.7-2.0-2.6-0.4-58.41.41.5

bokf:AverageAssetsForReportingPeriod us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments

us-gaap:OperatingSegments, bokf:Commercial


Average
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-30
Value2816028047234280002757524687519239732291019330306184991807217793-8.441175581759617438391693416973169692271354413136126541611150811243109561210460103631062916610065
Percentage of AverageAssetsForReportingPeriod56.155.741.657.255.454.072.855.056.148.726.454.953.352.8-5.053.254.452.917.351.953.153.9133.644.043.142.242.440.940.940.2-13.838.437.538.640.937.9

us-gaap:OperatingSegments, bokf:Consumer


Average
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-30
Value100879755-47.565989899209850158982792128371-77.94283238353846885911588458648-41.192882787748687-593.65372867341729227657556685615-21.826565556955723215671
Percentage of AverageAssetsForReportingPeriod20.119.4-8.420.219.921.522.322.522.621.1-6.724.724.625.150.127.627.326.2-18.027.027.427.6-348.523.724.124.37.123.420.620.623.320.820.620.85.221.3

us-gaap:OperatingSegments, bokf:WealthManagement


Average
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-30
Value1920118645807162061572112723343103929849931281849884958095101699267637160364641357655565-6.946294634482818432445564621184385454446871544273
Percentage of AverageAssetsForReportingPeriod38.337.1143.033.131.627.848.123.824.123.57.025.225.124.059.521.220.921.7159.119.618.017.7-4.115.015.216.14.915.416.617.0-19.416.116.417.038.116.1

bokf:Capitalizedmortgageservicingrights

bokf:Capitalizedmortgageservicingrights


Capitalizedmortgageservicingrights
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-31
Value7.9379.839.8797.4248.4655.441109.8828.7516.1886.5598.968108.99.719.925118.43615212013171923191517138.644
Percentage of Capitalizedmortgageservicingrights100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

bokf:ChangeInAmountReceivableOnUnsettledSecurityTransactions

bokf:ChangeInAmountReceivableOnUnsettledSecurityTransactions


Change
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value6.621-26.13-10.345122-96.631-22.113-3.657-60.19831-29.42829-34.26772154-197.048-23.256-2.73312123-137.1834-10.184-21.3160.9056420-80.8564.174-1.02575898.54120-178.5720.396478-436.13797-2.04172-107.769-477.5363420.00.0
Percentage of ChangeInAmountReceivableOnUnsettledSecurityTransactions100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.0

bokf:ChangeInFairValueDueToLoanRunoff

bokf:ChangeInFairValueDueToLoanRunoff


Change
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-30
Value-10.182-11.961-12.627-11.192-9.76-8.019-11.379-11.936-9.081-6.583-7.745-8.986-8.802-7.995-8.599-8.667-8.299-7.962-11.359-11.443-9.798-8.144-6.031-6.881-7.599-7.55332-5.102-4.762-3.742-3.897-4.905-5.765-5.063-5.967-4.661-4.18-4.144-4.189-3.621-3.458-3.476-4.675-4.401
Percentage of ChangeInFairValueDueToLoanRunoff100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

bokf:Changeinfairvalueofmortgageloancommitments

bokf:Changeinfairvalueofmortgageloancommitments


Changeinfairvalueofmortgageloancommitments
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-30
Value-1.253-8.98-8.7891.5933.38119-4.8780.5141.5062.7130.351-2.446-1.1242.074-2.543-1.927-3.2744.534-8.865-6.9015.32912-10.0279.838-9.1777.5291.491-5.1367.5813.379-8.29212
Percentage of Changeinfairvalueofmortgageloancommitments100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

bokf:Changeinfairvalueofmortgageservicingrightsduetoloanrunoff

bokf:Changeinfairvalueofmortgageservicingrightsduetoloanrunoff


Changeinfairvalueofmortgageservicingrightsduetoloanrunoff
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-31
Value101112119.768.01911119.0816.5837.7458.9868.8027.9958.5998.6678.2997.96211119.7988.144
Percentage of Changeinfairvalueofmortgageservicingrightsduetoloanrunoff100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

bokf:ChangeinprovisionduetochangesinreasonableandsupportableforecastsprimarilyduetoCOVID19pandemic

bokf:ChangeinprovisionduetochangesinreasonableandsupportableforecastsprimarilyduetoCOVID19pandemic


Changeinprovisionduetochangesinreasonableandsupportableforecastsprimarilydueto
Period End2021-06-302021-03-312020-09-30
Value-34200000.0-31100000.0-12800000.0
Percentage of ChangeinprovisionduetochangesinreasonableandsupportableforecastsprimarilyduetoCOVID19pandemic100.0100.0100.0

bokf:Changeinthefairvalueofforwardsalescommitments

bokf:Changeinthefairvalueofforwardsalescommitments


Changeinthefairvalueofforwardsalescommitments
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-30
Value-11.30915-2.0542.216.671-10.725-0.5524.232-0.732-0.485-4.7412.768-0.726-0.171-1.052-0.2934.342-8.4489.2398.267-5.992-7.1219.947-16.75513-2.191-2.5915.839-7.651-3.90313-31.167
Percentage of Changeinthefairvalueofforwardsalescommitments100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

bokf:ContributionsToBOKFFoundation

bokf:ContributionsToBOKFFoundation


Contributions
Period End2021-06-302021-03-312020-09-302020-06-302019-09-302019-06-30
Value04000000.003000000.001000000.0
Percentage of ContributionsToBOKFFoundation0.0100.00.0100.00.0100.0

bokf:ConveyanceOfOtherRealEstateOwnedGuaranteedByUsGovt

bokf:ConveyanceOfOtherRealEstateOwnedGuaranteedByUsGovt


Conveyance
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
Value1.5611.4482.1572.910.5615.6946.226.9657.088.4046.018.36112118.4959.4311011182114151713136610169.2129.1129.114111123311518
Percentage of ConveyanceOfOtherRealEstateOwnedGuaranteedByUsGovt100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

bokf:CorporateExpenseAllocations us-gaap:ConsolidationItems

bokf:CorporateExpenseAllocations

us-gaap:CorporateNonSegment


Corporate
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-30
Value-34.454-34.108-25.34-25.381-24.453-27.657-30.005-33.805-32.247-30.391-37.923-38.016-38.278-39.491-34.752-35.508-35.848-36.137-36.491-36.871-35.93
Percentage of CorporateExpenseAllocations100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

bokf:CorporateExpenseAllocations us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments

us-gaap:OperatingSegments, bokf:Commercial


Corporate
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-30
Value12125.3485.1725.4378.9058.909121110111111127.8148.658.8628.6319.0799.0548.8838.744-8.29141414119.44718138.5741118
Percentage of CorporateExpenseAllocations-36.3-37.3-21.1-20.4-22.2-32.2-29.7-37.3-35.3-33.4-29.0-29.0-29.4-31.7-22.5-24.4-24.7-23.9-24.9-24.6-24.70.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:OperatingSegments, bokf:Consumer


Corporate
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-30
Value111110101010111111111515151616171716161616151021212116151619191314
Percentage of CorporateExpenseAllocations-33.7-33.7-41.5-42.6-44.2-37.9-39.3-34.8-36.3-39.1-42.0-41.7-41.5-40.6-48.4-48.0-47.5-46.7-46.3-45.8-46.30.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:OperatingSegments, bokf:WealthManagement


Corporate
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-30
Value109.8879.4659.3978.2048.2659.2969.4169.1688.3610111110109.8199.94710101010106.51011107.2798.06512117.2167.6513
Percentage of CorporateExpenseAllocations-30.0-29.0-37.4-37.0-33.6-29.9-31.0-27.9-28.4-27.5-28.9-29.3-29.1-27.7-29.1-27.7-27.7-29.5-28.8-29.6-29.00.00.00.00.00.00.00.00.00.00.00.00.0

bokf:Disgorgedfees us-gaap:LitigationCase, us-gaap:LitigationStatus

bokf:Disgorgedfees

bokf:MisuseofRevenuesPledgedtoMunicipalBonds, us-gaap:JudicialRuling


Disgorgedfeesus-gaap:
Period End2021-06-302021-03-312020-12-31
Value01067700.00
Percentage of Disgorgedfees0.0100.00.0

bokf:Feesandcommissionrevenuenotfromcontractswithcustomers us-gaap:ProductOrService

bokf:Feesandcommissionrevenuenotfromcontractswithcustomers

bokf:Brokerageandtradingrevenue


Feesandcommissionrevenuenotfromcontractswithcustomersus-gaap:
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value178.357275751393332292017141822
Percentage of Feesandcommissionrevenuenotfromcontractswithcustomers100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

bokf:Customerhedgingrevenue


Feesandcommissionrevenuenotfromcontractswithcustomersus-gaap:
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value1.8052.5924.6438.6426.2423.2232.2354.6845.3456.6779.6188.5149.79510
Percentage of Feesandcommissionrevenuenotfromcontractswithcustomers10.331.017.014.912.28.26.714.418.232.154.257.753.148.8

bokf:Feesandcommissionsrevenue


Feesandcommissionrevenuenotfromcontractswithcustomersus-gaap:
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value585877120113856974655350485456
Percentage of Feesandcommissionrevenuenotfromcontractswithcustomers335.4701.4285.1207.9223.3215.6208.3229.1223.2256.3282.7327.6293.8253.7

bokf:Gainlossontrading


Feesandcommissionrevenuenotfromcontractswithcustomersus-gaap:
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value133.71619464334292421126.5154.836.33810
Percentage of Feesandcommissionrevenuenotfromcontractswithcustomers74.244.569.981.186.187.288.874.074.462.036.732.734.446.5

bokf:Investmentbankingrevenue


Feesandcommissionrevenuenotfromcontractswithcustomersus-gaap:
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value2.7212.0493.5712.280.8511.8281.4893.7622.1981.2291.6081.4112.31.061
Percentage of Feesandcommissionrevenuenotfromcontractswithcustomers15.524.513.13.91.74.64.511.67.55.99.19.612.54.7

bokf:Mortgageproductionrevenue


Feesandcommissionrevenuenotfromcontractswithcustomersus-gaap:
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value1025263839219.16913117.8685.0737.259.91516
Percentage of Feesandcommissionrevenuenotfromcontractswithcustomers57.1302.697.666.576.854.727.542.540.337.828.649.153.874.1

bokf:Mortgageservicingrevenue


Feesandcommissionrevenuenotfromcontractswithcustomersus-gaap:
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value111112131415161616151616169.452
Percentage of Feesandcommissionrevenuenotfromcontractswithcustomers64.0141.546.223.428.939.648.650.355.376.794.7110.489.142.3

us-gaap:FinancialServiceOther


Feesandcommissionrevenuenotfromcontractswithcustomersus-gaap:
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value201311108.978.40810118.1238.7210109.7668.984
Percentage of Feesandcommissionrevenuenotfromcontractswithcustomers114.3157.341.318.017.621.332.336.327.641.959.368.153.040.2

us-gaap:MortgageBanking


Feesandcommissionrevenuenotfromcontractswithcustomersus-gaap:
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value2137395153372530282321232626
Percentage of Feesandcommissionrevenuenotfromcontractswithcustomers121.1444.1143.889.9105.794.276.192.895.6114.4123.3159.5142.9116.4

bokf:GainLossonFinancialInstrumentsNet us-gaap:ConsolidationItems

bokf:GainLossonFinancialInstrumentsNet

us-gaap:CorporateNonSegment


Gain
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-30
Value-17.171290.261-1.578-7.404-86.8213-8.367-21.001-14.115-11.8937.2246.402238.567-1.69-5.2271.63561.129-15.045
Percentage of GainLossonFinancialInstrumentsNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

bokf:GainLossonFinancialInstrumentsNet us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments

us-gaap:OperatingSegments, bokf:Commercial


Gain
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-31
Value0.0340.0330.0580.0380.0480.0490.0390.0280.020.0180.013-0.0030.0090.0070.0060.0040.0030.0380.010.00.00.00.00.00.00.0
Percentage of GainLossonFinancialInstrumentsNet-0.20.122.2-2.4-0.6-0.10.3-0.3-0.1-0.1-0.1-0.00.10.00.1-0.2-0.12.30.00.0-0.00.00.00.00.00.0

us-gaap:OperatingSegments, bokf:Consumer


Gain
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-31
Value17-29.616-0.3161.547.35686-13.0418.339201411-7.228-6.411-23.262-8.5731.6865.224-1.667-56.791-1.0871516-6.5217.386-9.1353.558
Percentage of GainLossonFinancialInstrumentsNet-99.8-100.1-121.1-97.6-99.4-99.9-100.3-99.7-99.9-99.9-99.9-100.1-100.1-100.0-100.1-99.8-99.9-102.3-100.0-96.3-100.00.00.00.00.00.0

us-gaap:OperatingSegments, bokf:WealthManagement


Gain
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-31
Value-0.0030.00.00.0070.0020.00.00.00.00.0070.00.00.00.00.00.00.0-0.0420.00.00.0-0.176-0.0280.0
Percentage of GainLossonFinancialInstrumentsNet-1.1-0.0-0.0-0.00.0-0.0-0.0-0.0-0.00.10.00.00.0-0.0-0.00.00.0-3.7-0.00.00.00.00.00.0

bokf:GainOnFairValueOptionSecuritiesNet

bokf:GainOnFairValueOptionSecuritiesNet


Gain
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-30
Value-1.627-1.910.068-0.754-14.45968-8.3284.5979.8539.665-0.282-4.385-3.341-17.564-4.2380.6611.984-1.14-20.922-3.3554.2799.443-4.1275.926-8.132.6473.685-0.3324.1762.66-2.805-0.08-9.156-3.171-2.0816.1926.852-1.7330.222179.921
Percentage of GainOnFairValueOptionSecuritiesNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

bokf:IncreaseInUSGovernmentGuaranteedLoansEligibleForRepurchase

bokf:IncreaseInUSGovernmentGuaranteedLoansEligibleForRepurchase


Increase
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-31
Value19365181137202621212229282319464228304030202837332329443632313832272836362523435168-8.8330.0
Percentage of IncreaseInUSGovernmentGuaranteedLoansEligibleForRepurchase100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0

bokf:InterestRevenueOnFairValueOptionSecurities

bokf:InterestRevenueOnFairValueOptionSecurities


Interest
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-30
Value0.4020.4960.6711.9864.11119.488107.5035.2372.5783.8813.9274.8195.775.0663.5392.380.5411.5312.0622.5892.4612.482.322.0031.0530.9130.7940.8510.9270.8021.0131.1650.7721.8862.3113.4874.8775.2995.243
Percentage of InterestRevenueOnFairValueOptionSecurities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

bokf:InterestincomeInterestbearingcashandcashequivalents

bokf:InterestincomeInterestbearingcashandcashequivalents


Interestincome
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-31
Value0.1580.1740.1580.1670.1122.3932.3353.053.4323.3973.173.4417.747.9826.3116.3755.1984.2442.82.6512.5692.7061.4661.4421.251.4221.50.6010.3830.2650.2580.3550.2780.184
Percentage of InterestincomeInterestbearingcashandcashequivalents100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

bokf:MortgageBankingCosts

bokf:MortgageBankingCosts


Mortgage
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-30
Value1113141515101414119.906111112101413121317161512138.5877.4199.319107.7347.963.6347.0718.7537.917.3541411117.573109.3498.9686.471119.093
Percentage of MortgageBankingCosts100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

bokf:MortgageBankingRevenue

bokf:MortgageBankingRevenue


Mortgage
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value21373951533725302823212326262424302518423834253336393026292221233639465039332529191725291814
Percentage of MortgageBankingRevenue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

bokf:MortgageProductionRevenue

bokf:MortgageProductionRevenue


Mortgage
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-30
Value1025263839219.16913117.8685.0737.259.9159.4527.7868.329138.5432.23525221810182326171417111012
Percentage of MortgageProductionRevenue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

bokf:MortgageServicingFees

bokf:MortgageServicingFees


Mortgage
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value11111213141516161615161616161616
Percentage of MortgageServicingFees100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

bokf:NIRexpensefrominternalsources us-gaap:ConsolidationItems

bokf:NIRexpensefrominternalsources

us-gaap:CorporateNonSegment


N
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-30
Value14219.7561716273032271621169.3223.1870.7112.356-1.815-3.159-2.548-1.612-1.494
Percentage of NIRexpensefrominternalsources100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

bokf:NIRexpensefrominternalsources us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments

us-gaap:OperatingSegments, bokf:Commercial


N
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-09-302013-06-30
Value-21.041-25.794-23.442-23.302-29.205-50.495-61.078-63.797-65.47-52.562-48.539-42.27-37.102-28.343-22.487-24.173-20.347-16.793-14.522-15.052-14.575-14.534-14.385-12.73-12.642-12.555-6.668-9.794-7.857-12.275-13.07-9.389
Percentage of NIRexpensefrominternalsources-146.9-118.8-240.3-136.2-180.2-181.0-199.4-198.2-240.4-322.8-222.4-249.2-398.0-889.3-3162.7-1026.01121.0531.6569.9933.7975.60.00.00.00.00.00.00.00.00.00.00.0

us-gaap:OperatingSegments, bokf:Consumer


N
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-09-302013-06-30
Value7.3934.28813172018182028292119171512121110109.2638.8769.3535.2777.6887.6247.9142.9888.0584.6669.2298.7145.167
Percentage of NIRexpensefrominternalsources51.619.8134.9101.2126.364.761.564.9104.7181.299.1112.2188.2477.71718.1518.4-652.2-346.7-403.6-574.6-594.10.00.00.00.00.00.00.00.00.00.00.0

us-gaap:OperatingSegments, bokf:WealthManagement


N
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-09-302013-06-30
Value-0.673-0.20.526-11.113-7.4794.53811109.7196.775.0746.267109.9329.569.604108.8566.7857.4017.1937.6638.3315.1614.8975.6546.3665.1914.7194.6854.8485.107
Percentage of NIRexpensefrominternalsources-4.7-0.95.4-65.0-46.116.337.933.335.741.623.236.9109.8311.61344.6407.6-568.9-280.3-266.3-459.1-481.50.00.00.00.00.00.00.00.00.00.00.0

bokf:NetChangeInDemandDepositsTransactionDepositsAndSavingsAccounts

bokf:NetChangeInDemandDepositsTransactionDepositsAndSavingsAccounts


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-313.686167112111425452716081479846-56.23-16.97392-485.0892.58676287-444.562-211.159-194.7841033413435-605.148561-314.438-66.219-30.574907-331.56222815480143-231.979-1250.8312090866-102.941-23.41496933-244.138525588666541123
Percentage of NetChangeInDemandDepositsTransactionDepositsAndSavingsAccounts100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

bokf:NetChangeInDerivativeMarginAccounts

bokf:NetChangeInDerivativeMarginAccounts


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-652.7122.995-339.269-164.83567-163.911-121.65467-1.811-150.72213172-94.138-24.49-9.143-35.9170-42.69310059-112.947-75.876104-100.40353-101.29130172-134.123-84.368156-220.184172-57.241140-123.43237-15.63-0.557-55.09938-84.6145541-10.711-16.178
Percentage of NetChangeInDerivativeMarginAccounts100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

bokf:Netchangeinunrealizedgainonmortgageloansheldforsale

bokf:Netchangeinunrealizedgainonmortgageloansheldforsale


Netchangeinunrealizedgainonmortgageloansheldforsale
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-30
Value1.783-6.955-0.216-1.6725.0243.561-0.2930.0970.921-0.0531.783-2.1351.047-1.369-1.304-1.4920.985-0.246-9.96-2.5183.8843.283-5.5356.666-5.3663.4510.618-3.115.0522.797-6.80811
Percentage of Netchangeinunrealizedgainonmortgageloansheldforsale100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

bokf:Netdirectcontribution

bokf:Netdirectcontribution


Netdirectcontribution
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-31
Value21518619920480791411741751401281521481361261281361267210796628710912011393108113114109109121136
Percentage of Netdirectcontribution100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

bokf:Netdirectcontribution us-gaap:ConsolidationItems

us-gaap:CorporateNonSegment


Netdirectcontributionus-gaap:
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-30
Value453821-0.218-136.29-114.297-44.673-55.327-67.753-67.163-62.881-56.362-48.807-56.519-47.305-60.635-49.321-53.952-74.565-47.849-51.789
Percentage of Netdirectcontribution21.020.811.0-0.1-170.2-144.2-31.7-31.8-38.6-47.9-48.9-37.0-32.9-41.5-37.3-47.3-36.1-42.6-103.0-44.7-53.5

bokf:Netdirectcontribution us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments

us-gaap:OperatingSegments, bokf:Commercial


Netdirectcontributionus-gaap:
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-31
Value10895106112116111119150157127126128130124111126119113115999569988889908376837674717775
Percentage of Netdirectcontribution50.351.253.455.0145.2141.384.486.589.891.298.584.487.991.588.298.987.389.3159.792.799.2111.5112.580.373.879.589.271.173.667.068.565.063.555.5

us-gaap:OperatingSegments, bokf:Consumer


Netdirectcontributionus-gaap:
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-31
Value9.781162341464226384239302928302826302412292427163034272336292934354343
Percentage of Netdirectcontribution4.58.811.820.058.754.218.821.924.028.023.819.419.222.622.620.822.619.416.727.925.443.918.827.428.224.224.633.426.025.831.432.136.131.9

us-gaap:OperatingSegments, bokf:WealthManagement


Netdirectcontributionus-gaap:
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-31
Value52354751533840404340345038373335353419252821121718181415201510161415
Percentage of Netdirectcontribution24.119.323.925.166.348.728.423.324.828.726.633.225.827.426.627.526.226.926.524.229.035.214.915.615.016.115.614.718.313.510.015.512.011.5

bokf:Netgainonmortgageloansheldforsale

bokf:Netgainonmortgageloansheldforsale


Netgainonmortgageloansheldforsale
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-31
Value221937342913149.068115.649.4636.928117.549111012121.86124261015201820181417115.358
Percentage of Netgainonmortgageloansheldforsale100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

bokf:NirExpenseFromExternalSources

bokf:NirExpenseFromExternalSources


Nir
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-30
Value280280297271278261270279285278285240238219216218205201194187182182181178175167169166166162170166167170173176181173171175174170163180
Percentage of NirExpenseFromExternalSources100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

bokf:NirExpenseFromExternalSources us-gaap:ConsolidationItems

us-gaap:CorporateNonSegment


Nir
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-30
Value57596648501915-4.771-7.07530469.26152225242723283235
Percentage of NirExpenseFromExternalSources20.621.222.317.918.27.45.8-1.7-2.511.116.23.86.710.111.911.313.211.814.717.519.4

bokf:NirExpenseFromExternalSources us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments

us-gaap:OperatingSegments, bokf:Commercial


Nir
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-30
Value151155165173174201219243251204196187182160152157144134134123118116120109108101100959591919190909391
Percentage of NirExpenseFromExternalSources54.255.655.763.862.777.381.487.488.073.468.977.876.373.070.571.970.367.069.165.864.963.966.561.361.860.359.357.257.256.053.855.054.253.353.751.9

us-gaap:OperatingSegments, bokf:Consumer


Nir
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-30
Value171617151825242724211821212126252321202222212021212023232424252524242324
Percentage of NirExpenseFromExternalSources6.36.05.95.86.89.99.09.98.57.86.58.79.19.912.111.711.510.510.411.812.211.811.512.112.412.413.913.914.615.214.915.114.914.113.814.1

us-gaap:OperatingSegments, bokf:WealthManagement


Nir
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-30
Value524847343414101217212323181511111011119.2746.2696.0786.4816.686.2265.3846.2525.9565.7655.8286.1056.36.5126.486.3077.064
Percentage of NirExpenseFromExternalSources18.917.316.112.512.45.53.84.46.07.78.49.67.97.05.55.15.15.75.94.93.43.33.63.73.53.23.73.63.53.63.63.83.93.83.64.0

bokf:Otherchangestoprovision

bokf:Otherchangestoprovision


Otherchangestoprovision
Period End2021-06-302021-03-312020-09-30
Value0.5795.214
Percentage of Otherchangestoprovision100.0100.0100.0

bokf:RepossessedAssetsExpenseAndNetLosses us-gaap:FairValueByAssetClass, us-gaap:FairValueByMeasurementFrequency

bokf:RepossessedAssetsExpenseAndNetLosses

bokf:FairValueRealEstateAndOtherRepossessedAssets, us-gaap:FairValueMeasurementsNonrecurring


Repossessed
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-30
Value2.2-0.15-4.370.0050.2260.071-0.9790.0860.434-0.1192.1610.1185.1921.4574.6830.7720.2931.2670.480.7510.4580.0490.670.5331.161-1.9524.139-0.0211.2512.9291.7670.8630.6614.8864.3984.4882.4062.3944.052
Percentage of RepossessedAssetsExpenseAndNetLosses100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

bokf:SegmentReportingChangeinFairValueofMortgageServicingRights us-gaap:ConsolidationItems

bokf:SegmentReportingChangeinFairValueofMortgageServicingRights

us-gaap:CorporateNonSegment


Segment
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-30
Value13-33.874-6.276-3.4410.76188-9.29712292024-5.972-1.723-21.206-5.8980.6396.943-1.856-39.751-2.32716
Percentage of SegmentReportingChangeinFairValueofMortgageServicingRights100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

bokf:SegmentReportingChangeinFairValueofMortgageServicingRights us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments

us-gaap:OperatingSegments, bokf:Consumer


Segment
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-31
Value-13.041336.2763.441-0.761-88.489.297-12.593-29.555-20.666-24.2335.9721.723215.898-0.639-6.9431.856392.327-16.283-27.9887.416-11.7588.01-8.522
Percentage of SegmentReportingChangeinFairValueofMortgageServicingRights-100.0-100.0-100.0-100.0-100.0-100.0-100.0-100.0-100.0-100.0-100.0-100.0-100.0-100.0-100.0-100.0-100.0-100.0-100.0-100.0-100.00.00.00.00.00.0

bokf:ServicingAssetsAtFairValueAssumptionsUsedToEstimateFairValueDelinquentLoanServiceCostMinimum

bokf:ServicingAssetsAtFairValueAssumptionsUsedToEstimateFairValueDelinquentLoanServiceCostMinimum


Servicing
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
Value0150.0000150.0000150.0150.0150.0150.0150.0150.0150.0150.0150.0150.0150.0150.0150.0150.0175.0150.0150.0150.0150.0150.0150.0135.0135.0135.00085.050.0
Percentage of ServicingAssetsAtFairValueAssumptionsUsedToEstimateFairValueDelinquentLoanServiceCostMinimum0.0100.00.00.00.0100.00.00.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.0100.0100.0

bokf:ServicingAssetsAtFairValueAssumptionsUsedToEstimateFairValueDelinquentLoanSvcCostMaximum

bokf:ServicingAssetsAtFairValueAssumptionsUsedToEstimateFairValueDelinquentLoanSvcCostMaximum


Servicing
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
Value0500.0000500.0000500.0500.0500.0500.0500.0500.0500.0500.0500.0500.0500.0500.0500.0500.0550.0500.0500.0500.0500.0500.0500.0500.0500.0500.000250.0250.0
Percentage of ServicingAssetsAtFairValueAssumptionsUsedToEstimateFairValueDelinquentLoanSvcCostMaximum0.0100.00.00.00.0100.00.00.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.0100.0100.0

bokf:ServicingAssetsAtFairValueAssumptionsUsedToEstimateFairValueEscrowEarningsRate

bokf:ServicingAssetsAtFairValueAssumptionsUsedToEstimateFairValueEscrowEarningsRate


Servicing
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-30
Value-0.091.040.090.3367-0.0020.00530.0022-0.0024-0.00540.02290.03070.02880.02710.02240.020.01950.02060.01980.01180.00990.01190.01730.0140.01770.01540.01770.01950.01690.01810.0180.01540.01560.00970.001-0.002-0.00310.0128-0.0005-0.0076-0.00410.02430.0070.0017
Percentage of ServicingAssetsAtFairValueAssumptionsUsedToEstimateFairValueEscrowEarningsRate100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

bokf:ServicingAssetsAtFairValueAssumptionsUsedToEstimateFairValueForeclosureLoanServiceCostMaximum

bokf:ServicingAssetsAtFairValueAssumptionsUsedToEstimateFairValueForeclosureLoanServiceCostMaximum


Servicing
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
Value04000.00004000.00004000.04000.04000.04000.04000.04250.04250.04250.04250.04250.04250.04250.04250.04250.04000.04250.04250.04250.04250.04250.04250.04250.04250.04250.0500.00750.03000.0
Percentage of ServicingAssetsAtFairValueAssumptionsUsedToEstimateFairValueForeclosureLoanServiceCostMaximum0.0100.00.00.00.0100.00.00.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0

bokf:ServicingAssetsAtFairValueAssumptionsUsedToEstimateFairValueForeclosureLoanServiceCostMinimum

bokf:ServicingAssetsAtFairValueAssumptionsUsedToEstimateFairValueForeclosureLoanServiceCostMinimum


Servicing
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
Value01000.00001000.00001000.01000.01000.01000.01000.01000.01000.0650.0650.0650.0650.0650.0650.0650.01000.01000.01000.01000.01000.01000.01000.0875.0875.0875.000375.0500.0
Percentage of ServicingAssetsAtFairValueAssumptionsUsedToEstimateFairValueForeclosureLoanServiceCostMinimum0.0100.00.00.00.0100.00.00.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.0100.0100.0

bokf:ServicingAssetsAtFairValueAssumptionsUsedToEstimateFairValuePerformingLoanServiceCostMaximum

bokf:ServicingAssetsAtFairValueAssumptionsUsedToEstimateFairValuePerformingLoanServiceCostMaximum


Servicing
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
Value094.000094.000094.092.088.088.088.0120.0120.0120.0120.0120.0120.0120.0105.0105.0105.0105.0105.0105.0105.0105.0105.0105.0105.0105.0000105.0
Percentage of ServicingAssetsAtFairValueAssumptionsUsedToEstimateFairValuePerformingLoanServiceCostMaximum0.0100.00.00.00.0100.00.00.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.00.0100.0

bokf:ServicingAssetsAtFairValueAssumptionsUsedToEstimateFairValuePerformingLoanServiceCostMinimum

bokf:ServicingAssetsAtFairValueAssumptionsUsedToEstimateFairValuePerformingLoanServiceCostMinimum


Servicing
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
Value069.000069.000068.066.065.065.065.065.065.063.063.063.063.063.063.063.063.060.060.060.060.060.060.058.058.055.000055.0
Percentage of ServicingAssetsAtFairValueAssumptionsUsedToEstimateFairValuePerformingLoanServiceCostMinimum0.0100.00.00.00.0100.00.00.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.00.0100.0

bokf:ServicingAssetsAtFairValueAssumptionsUsedToEstimateFairValuePrepaymentSpeedMaximum

bokf:ServicingAssetsAtFairValueAssumptionsUsedToEstimateFairValuePrepaymentSpeedMaximum


Servicing
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-30
Value1.2817.8-2.1523.711-0.01930.328-0.0117-0.0010.0130.16020.15040.15080.15730.15160.15430.15910.18170.16910.47150.42770.3521-0.0473-0.0138-0.08910.4121-0.0248-0.06680.07120.45980.01980.0933-0.01320.3969-0.32970.215
Percentage of ServicingAssetsAtFairValueAssumptionsUsedToEstimateFairValuePrepaymentSpeedMaximum100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

bokf:ServicingAssetsAtFairValueAssumptionsUsedToEstimateFairValuePrepaymentSpeedMinimum

bokf:ServicingAssetsAtFairValueAssumptionsUsedToEstimateFairValuePrepaymentSpeedMinimum


Servicing
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-30
Value1.446.37-0.499.80960.00820.0822-0.00030.00030.00140.08140.07850.08120.0810.08720.08710.08610.08660.08980.09160.09260.0888-0.00370.0003-0.0110.081-0.0076-0.0230.01430.1001-0.00450.01070.03570.06690.0133-0.031
Percentage of ServicingAssetsAtFairValueAssumptionsUsedToEstimateFairValuePrepaymentSpeedMinimum100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

bokf:ServicingAssetsandServicingLiabilitiesatFairValueAssumptionsUsedtoEstimateFairValueDelinquencyRate

bokf:ServicingAssetsandServicingLiabilitiesatFairValueAssumptionsUsedtoEstimateFairValueDelinquencyRate


Servicing
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-31
Value-0.12.77-0.183.67490.01960.0255
Percentage of ServicingAssetsandServicingLiabilitiesatFairValueAssumptionsUsedtoEstimateFairValueDelinquencyRate100.0100.0100.0100.0100.0100.0

bokf:TotalFeesAndCommissions

bokf:TotalFeesAndCommissions


Total
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value169162181222213192179186176160159167157158168173177164152185183165155164172165157158164140138146160158167166154144131146127123135136128115
Percentage of TotalFeesAndCommissions100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AccretionAmortizationOfDiscountsAndPremiumsInvestments

us-gaap:AccretionAmortizationOfDiscountsAndPremiumsInvestments


Accretion
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-30
Value-4.754-4.853-3.4365.278-5.186-2.0130.3365.73515-4.339-11.944-6.146-6.3-6.555-6.544-6.772-6.857-8.52-10.27-9.559-10.601-11.213-12.388-13.416-14.83-14.511-14.124-14.799-13.719-14.56-14.806-14.601-16.36-16.507-19.19-20.79-23.939-23.85189-125.5972-24.098175-113.934
Percentage of AccretionAmortizationOfDiscountsAndPremiumsInvestments100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AdjustmentsRelatedToTaxWithholdingForShareBasedCompensation

us-gaap:AdjustmentsRelatedToTaxWithholdingForShareBasedCompensation


Adjustments
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-31
Value05815000.00005608000.00001428000.000698000.02172000.01000.0001389000.00-165000.00260000.0
Percentage of AdjustmentsRelatedToTaxWithholdingForShareBasedCompensation0.0100.00.00.00.0100.00.00.00.0100.00.00.0100.0100.0100.00.00.0100.00.0100.00.0100.0

us-gaap:AdjustmentsRelatedToTaxWithholdingForShareBasedCompensation us-gaap:StatementEquityComponents

us-gaap:Parent


Adjustments
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-31
Value05815000.00005608000.00001428000.000698000.02172000.01000.0001389000.00-165000.00260000.0
Percentage of AdjustmentsRelatedToTaxWithholdingForShareBasedCompensation0.0100.00.00.00.0100.00.00.00.0100.00.00.0100.0100.0100.00.00.0100.00.0100.00.0100.0

us-gaap:TreasuryStock


Adjustments
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-31
Value05815000.00005608000.00001428000.000698000.02172000.01000.0001389000.00355000.0-520000.0260000.0
Percentage of AdjustmentsRelatedToTaxWithholdingForShareBasedCompensation0.0100.00.00.00.0100.00.00.00.0100.00.00.0100.0100.0100.00.00.0100.00.0-215.20.0100.0

us-gaap:AllowanceForLoanAndLeaseLossesWriteOffs us-gaap:FairValueByAssetClass, us-gaap:FairValueByMeasurementFrequency

us-gaap:AllowanceForLoanAndLeaseLossesWriteOffs

bokf:FairValueNonaccruingLoans, us-gaap:FairValueMeasurementsNonrecurring


Allowance
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value1715106.3711315172.644119.581
Percentage of AllowanceForLoanAndLeaseLossesWriteOffs100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AssetAtFairValueChangesInFairValueResultingFromChangesInAssumptions

us-gaap:AssetAtFairValueChangesInFairValueResultingFromChangesInAssumptions


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
Value-13.041336.2763.441-0.761-88.489.297-12.593-29.555-20.666-24.2335.9721.723215.898-0.639-6.9431.856392.327-16.283-27.9887.416-11.7578.01-8.522-10.8215.281-6.444-4.4616.093-0.346142.6584.689-9.576-11.457.127-5.261-24.822-13.4933.12925-15.924-19.458
Percentage of AssetAtFairValueChangesInFairValueResultingFromChangesInAssumptions100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:CommonStockDividendsPerShareDeclared

us-gaap:CommonStockDividendsPerShareDeclared


Common
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-04-242012-03-312011-12-312011-10-252011-09-302011-07-262011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value0.520.520.520.510.510.510.510.50.50.50.50.50.450.450.450.440.440.440.440.430.430.430.430.420.420.420.420.40.40.40.40.380.380.381.380.380.380.380.330.330.330.2750.2750.2750.250.250.250.250.24
Percentage of CommonStockDividendsPerShareDeclared100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:CommonStockDividendsPerShareDeclared us-gaap:SubsequentEventType

us-gaap:SubsequentEvent


Common
Period End2021-08-032021-05-042020-11-032020-08-042020-04-282019-10-292019-07-302019-04-302018-10-302018-07-242018-04-302017-10-312017-07-252017-04-252016-10-252016-07-26
Value0.520.520.520.510.510.510.50.50.50.50.450.450.440.440.440.43
Percentage of CommonStockDividendsPerShareDeclared0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:CommunicationsAndInformationTechnology

us-gaap:CommunicationsAndInformationTechnology


Communications
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value36373534323231312931273127273837363333333232293131303029292728252625252625222624242223212120
Percentage of CommunicationsAndInformationTechnology100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DebtSecuritiesAvailableForSaleRealizedGain

us-gaap:DebtSecuritiesAvailableForSaleRealizedGain


Debt
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value1.7670.4734.3390.0545.580.0037.680.9891.0295.2986.4170.250.2570.1932.62.768
Percentage of DebtSecuritiesAvailableForSaleRealizedGain100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DebtSecuritiesAvailableForSaleRealizedLossExcludingOtherThanTemporaryImpairment

us-gaap:DebtSecuritiesAvailableForSaleRealizedLossExcludingOtherThanTemporaryImpairment


Debt
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value337000.06000.0066000.0003193000.0984000.005222000.08416000.001019000.0483000.03088000.0281000.0
Percentage of DebtSecuritiesAvailableForSaleRealizedLossExcludingOtherThanTemporaryImpairment100.0100.00.0100.00.00.0100.0100.00.0100.0100.00.0100.0100.0100.0100.0

us-gaap:DebtSecuritiesRealizedGainLoss

us-gaap:DebtSecuritiesRealizedGainLoss


Debt
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value1.430.4674.339-0.0125.580.0034.4870.0051.0290.076-1.9990.25-0.762-0.29-0.4882.487
Percentage of DebtSecuritiesRealizedGainLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DepreciationAmortizationAndAccretionNet

us-gaap:DepreciationAmortizationAndAccretionNet


Depreciation
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value252424272323252326191814131315131312-17.527232218151616161514131212131413171212121312121213141317
Percentage of DepreciationAmortizationAndAccretionNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DerivativeGainLossOnDerivativeNet us-gaap:DerivativeInstrumentRisk, us-gaap:HedgingDesignation

us-gaap:DerivativeGainLossOnDerivativeNet

bokf:InternalRiskManagementPrograms, us-gaap:Nondesignated


Derivative
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-31
Value18-27.65-0.3392.3542118-4.6443.778114.66711-2.847-3.057-5.685-3.0451.0333.241-0.45-35.8152.226107.138
Percentage of DerivativeGainLossOnDerivativeNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DerivativeGainLossOnDerivativeNet us-gaap:HedgingDesignation

us-gaap:Nondesignated


Derivative
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-30
Value18-27.65-0.3392.3542118-4.6443.778114.66711-2.847-3.057-5.685-3.0451.0333.241-0.45-35.8152.226107.138-0.7321.283-1.0320.9111.07-0.0930.8310.968-0.930.031-2.5276.118-0.6370.464
Percentage of DerivativeGainLossOnDerivativeNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsGainLossNet

us-gaap:DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsGainLossNet


Derivative
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-30
Value18-27.652.35421183.77811
Percentage of DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsGainLossNet100.0100.0100.0100.0100.0100.0100.0

us-gaap:DividendsCommonStockCash

us-gaap:DividendsCommonStockCash


Dividends
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value3536363535363635353635322929292928282828282828282828282727272725252593252522-22.235-18.549-18.683-16.956-16.861-16.874-16.834-15.988
Percentage of DividendsCommonStockCash100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DividendsCommonStockCash us-gaap:StatementEquityComponents

us-gaap:Parent


Dividends
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value3536363535363635353635322929292928282828282828282828282727272725252593252522-22.235-18.549-18.683-16.956-16.861-16.874-16.834-15.988
Percentage of DividendsCommonStockCash100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:RetainedEarnings


Dividends
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value3536363535363635353635322929292928282828282828282828282727272725252593252522-22.235-18.549-18.683-16.956-16.861-16.874-16.834-15.988
Percentage of DividendsCommonStockCash100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetGainLossIncludedInEarnings1 us-gaap:FairValueByAssetClass, us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency, us-gaap:IncomeStatementLocation

us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetGainLossIncludedInEarnings1

bokf:ResidentialMortgageLoansHeldforSale, us-gaap:FairValueInputsLevel3, us-gaap:FairValueMeasurementsRecurring, bokf:Mortgagebankingrevenue


Fair
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-31
Value128000.0-569000.0-63000.0-113000.0386000.0388000.0-32000.0-358000.0-124000.0173000.0-260000.03000.036000.0233000.0-236000.0-158000.0113000.0-181000.0-122000.0-15000.0-95000.0159000.059000.0
Percentage of FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetGainLossIncludedInEarnings1100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetSales us-gaap:FairValueByAssetClass, us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency

us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetSales

bokf:ResidentialMortgageLoansHeldforSale, us-gaap:FairValueInputsLevel3, us-gaap:FairValueMeasurementsRecurring


Fair
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-09-30
Value1612000.0648000.0940000.05441000.03152000.0998000.0381000.01853000.0143000.0488000.0324000.0395000.0847000.01030000.0589000.01003000.0
Percentage of FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetSales100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetTransfersIntoLevel3 us-gaap:FairValueByAssetClass, us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency

us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetTransfersIntoLevel3

bokf:ResidentialMortgageLoansHeldforSale, us-gaap:FairValueInputsLevel3, us-gaap:FairValueMeasurementsRecurring


Fair
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-09-30
Value0.3041.3282.2640.2990.2610.9070.9820.582.8620.6872.1560.5910.1760.8531.8872.6490.4423.080.460.040.9660.9440.2437.764
Percentage of FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetTransfersIntoLevel3100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:FederalDepositInsuranceCorporationPremiumExpense

us-gaap:FederalDepositInsuranceCorporationPremiumExpense


Federal
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value3.664.624.0065.8485.1564.985.3934.226.4544.8394.2486.2326.2456.5936.5556.0050.6896.4048.7059.397.1297.2655.4154.8645.1164.984.7774.7934.4674.5414.3943.9394.0443.7453.7893.694.0113.8663.6362.2064.7716.1866.1396.0525.5966.533
Percentage of FederalDepositInsuranceCorporationPremiumExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:FinancingReceivableAllowanceForCreditLossesRecovery

us-gaap:FinancingReceivableAllowanceForCreditLossesRecovery


Financing
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-30
Value2.8562.4371.5924.2321.4911.6961.8161.0665.5031.6892.1682.0924.5781.5763.0612.4371.2142.92.8132.0381.3861.5191.873.5212.206105.0363.1145.5245.366.0684.4096.216.5573.7233.2046.7025.1895.3113.869
Percentage of FinancingReceivableAllowanceForCreditLossesRecovery100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:FinancingReceivableAllowanceForCreditLossesRecovery us-gaap:FinancingReceivablePortfolioSegment

bokf:Loanstoindividuals


Financing
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-31
Value0.8050.7310.7721.0521.0981.187
Percentage of FinancingReceivableAllowanceForCreditLossesRecovery28.230.048.524.973.670.0

us-gaap:CommercialPortfolioSegment


Financing
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-30
Value1.8751.6760.793.0660.3180.4620.6160.260.4340.7111.2671.2630.2980.4881.9821.0140.2831.1820.8390.1770.2230.4880.9280.7590.6850.3572.2620.26
Percentage of FinancingReceivableAllowanceForCreditLossesRecovery65.768.849.672.421.327.233.924.47.942.158.460.46.531.064.841.623.340.829.88.716.132.149.621.631.13.444.98.3

us-gaap:CommercialRealEstatePortfolioSegment


Financing
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-30
Value0.1760.030.030.1140.0750.0470.4690.064.3450.1120.2320.043.0970.1830.2580.7390.2080.7350.3950.5210.2820.0850.121.8650.2758.8191.1451.41
Percentage of FinancingReceivableAllowanceForCreditLossesRecovery6.21.21.92.75.02.825.85.679.06.610.71.967.611.68.430.317.125.314.025.620.35.66.453.012.583.822.745.3

us-gaap:FinancingReceivableAllowanceForCreditLossesWriteOffs

us-gaap:FinancingReceivableAllowanceForCreditLossesWriteOffs


Financing
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-31
Value181618261518141113111411152.89145.8252.8722.1531.6518.1018.845234.8515.2742.8772.1697.2242.6383.5222.84847-4.7088.552-8.909-8.0-8.921-11.543-13.674-14.771-14.023-12.774-15.232
Percentage of FinancingReceivableAllowanceForCreditLossesWriteOffs100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:FinancingReceivableAllowanceForCreditLossesWriteOffs us-gaap:FinancingReceivablePortfolioSegment

bokf:Loanstoindividuals


Financing
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-31
Value1.0021.2971.3020.9291.0821.416
Percentage of FinancingReceivableAllowanceForCreditLossesWriteOffs5.57.77.13.56.97.5

us-gaap:CommercialPortfolioSegment


Financing
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-30
Value161516251416119.8751110129.602131.563134.4291.7030.4240.0816.2667.355222.1823.4970.8810.1743.2790.117
Percentage of FinancingReceivableAllowanceForCreditLossesWriteOffs90.290.892.995.093.087.880.384.486.188.989.186.791.254.189.976.059.319.74.977.383.292.245.066.330.68.045.44.4

us-gaap:CommercialRealEstatePortfolioSegment


Financing
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-30
Value0.80.2630.00.4130.0010.8861.0430.00.1180.00.00.00.00.00.00.00.0760.00.00.00.00.00.90.00.0160.0281.6820.145
Percentage of FinancingReceivableAllowanceForCreditLossesWriteOffs4.41.60.01.50.04.77.30.00.90.00.00.00.00.00.00.02.60.00.00.00.00.018.60.00.61.323.35.5

us-gaap:FinancingReceivableModificationsPostModificationRecordedInvestment2

us-gaap:FinancingReceivableModificationsPostModificationRecordedInvestment2


Financing
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-30
Value55137.0363528-3.06.22118-1.03119374.147113322289.11510107.34711
Percentage of FinancingReceivableModificationsPostModificationRecordedInvestment2100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:FinancingReceivablesImpairedTroubledDebtRestructuringWriteDown

us-gaap:FinancingReceivablesImpairedTroubledDebtRestructuringWriteDown


Financing
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-30
Value0.0350.3064.7999999999999986.47.72.03.52.50.018.35.94.55.50.071-4.2954.370.010.0213.5020.5430.60.1330.8990.250.0520.0334.8020.1590.160.289-0.0110.290.2080.997-1.8672.5640.895.191.0310.929
Percentage of FinancingReceivablesImpairedTroubledDebtRestructuringWriteDown100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:GainLossOnDispositionOfAssets1

us-gaap:GainLossOnDispositionOfAssets1


Gain
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-30
Value16-3.0365.3836.2656.768-10.741-1.6494.5443.482.976-7.4911.4413.983-0.6640.552-1.2836.1083.627-1.2792.4421.3071.562.3291.1611.4570.7550.3381.422
Percentage of GainLossOnDispositionOfAssets1100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:GainLossOnDispositionOfAssets1 us-gaap:FairValueByAssetClass, us-gaap:FairValueByMeasurementFrequency

bokf:FairValueRealEstateAndOtherRepossessedAssets, us-gaap:FairValueMeasurementsNonrecurring


Gain
Period End2021-06-302020-06-30
Value-3.966-0.005
Percentage of GainLossOnDispositionOfAssets1-24.1-0.1

us-gaap:GainLossOnSaleOfMortgageLoans

us-gaap:GainLossOnSaleOfMortgageLoans


Gain
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-31
Value20263736249.717148.971105.6937.689.063108.918121211121127191015182317171712115.35819173035
Percentage of GainLossOnSaleOfMortgageLoans100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:GainLossOnSalesOfAssetsAndAssetImpairmentCharges us-gaap:ConsolidationItems

us-gaap:GainLossOnSalesOfAssetsAndAssetImpairmentCharges

us-gaap:CorporateNonSegment


Gain
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-30
Value-3.565-12.778-1.654.291-0.218-0.0220.037-1.016-0.0920.2430.1621.956-0.1074.274-0.4043.834-1.5010.141-0.276-1.6470.346
Percentage of GainLossOnSalesOfAssetsAndAssetImpairmentCharges100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:GainLossOnSalesOfAssetsAndAssetImpairmentCharges us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments

us-gaap:OperatingSegments, bokf:Commercial


Gain
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-31
Value3.565121.455-4.3320.1910.009-0.1240.8020.0-0.346-0.43-1.869-0.067-4.1660.047-4.1261.403-0.005-0.1371.486-0.598-0.0820.3720.35-0.0580.045
Percentage of GainLossOnSalesOfAssetsAndAssetImpairmentCharges-100.0-99.7-88.2-101.0-87.6-40.9-335.1-78.9-0.0-142.4-265.4-95.662.6-97.5-11.6-107.6-93.5-3.549.6-90.2-172.80.00.00.00.00.0

us-gaap:OperatingSegments, bokf:Consumer


Gain
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-31
Value0.00.0410.1950.0410.0270.0130.0870.2140.0920.1030.268-0.0870.174-0.108-0.030.2920.098-0.1360.4130.1610.2520.1530.0280.3310.4790.078
Percentage of GainLossOnSalesOfAssetsAndAssetImpairmentCharges-0.0-0.3-11.81.0-12.4-59.1235.1-21.1-100.042.4165.4-4.4-162.6-2.57.47.6-6.5-96.5-149.6-9.872.80.00.00.00.00.0

us-gaap:GainsLossesOnSalesOfOtherRealEstate

us-gaap:GainsLossesOnSalesOfOtherRealEstate


Gains
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-30
Value6588000.0-1168000.0-6244000.0-1766000.0-1531000.0-2403000.0-1728000.0-580000.0-1996000.0-2581000.0-4044000.0-2722000.0-7705000.0-340000.0-6071000.0-2267000.0-1009000.0-1627000.0926000.0-1588000.0-1070000.0-343000.0-267000.0-223000.0-613000.01497000.0-4966000.0-1118000.0-1432000.0-1618000.0-2014000.0-282000.0-1246000.0-6665000.0-5706000.0-5912000.0
Percentage of GainsLossesOnSalesOfOtherRealEstate100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncreaseDecreaseInOtherAccountsPayableAndAccruedLiabilities

us-gaap:IncreaseDecreaseInOtherAccountsPayableAndAccruedLiabilities


Increase
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-31
Value-28.09544-7.3055026-23.646-18.22-71.888714.422-8.7491819-13.234-6.469167.48133-13.13211-2.8775.52116-83.465-41.1146.399-16.68115
Percentage of IncreaseDecreaseInOtherAccountsPayableAndAccruedLiabilities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncreaseDecreaseInOtherOperatingAssets

us-gaap:IncreaseDecreaseInOtherOperatingAssets


Increase
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value-24.97524-10.313-20.7781217-5.974-17.946-0.1095.074-42.66416-6.0864.349-13.4851.443106.80531173.37-3.145110.6631.4566.293-40.9768.998-31.818-14.111-17.946-19.665-31.27-7.376-16.7468.585-4.5581.7217-50.9537.6829.3918.262-14.43824-9.048
Percentage of IncreaseDecreaseInOtherOperatingAssets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncreaseDecreaseInOtherOperatingLiabilities

us-gaap:IncreaseDecreaseInOtherOperatingLiabilities


Increase
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value82-49.998-403.79139179193-362.4133195446-369.161-104.95-44.884379138161413-18.67516-74.44765-24.91418138.173-22.157-0.465221.555-8.0597.731-46.9533-32.40921-2.899103.28-18.353-30.287-4.8381613262.763
Percentage of IncreaseDecreaseInOtherOperatingLiabilities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncreaseDecreaseInReceivables

us-gaap:IncreaseDecreaseInReceivables


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
Value-44.636-15.65-1881.515211-382.6441107126384-453.984682-211.001-86.0223013313720-100.464-379.311204746.4343.264153.155-27.6181621-9.526-1.362-3.24610-31.606212.554-1.916-16.995-8.821813-56.50954-35.881046
Percentage of IncreaseDecreaseInReceivables100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncreaseDecreaseInTimeDeposits

us-gaap:IncreaseDecreaseInTimeDeposits


Increase
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value-99.00737-40.845-344.78712014-25.692152984-50.519-51.886-38.52267-73.873-23.833-47.7262220-77.43-94.313-64.69-92.467-125.848-27.39943-55.86448-46.348-33.819-24.027-47.952-132.082-67.938-54.334-85.624-58.149-215.883-172.488-80.23-42.911168-232.0616819-113.202
Percentage of IncreaseDecreaseInTimeDeposits100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncreaseDecreaseInTradingSecurities

us-gaap:IncreaseDecreaseInTradingSecurities


Increase
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value6013352442462-1893.4641092-768.752452191608174-326.117585588-215.702547-232.178704-353.951294-222.92132-41.5591543521555939-10.89-59.628-77.064-19.867-81.022-36.96262-1.12-250.562-545.72467-245.72676-352.612463-55.904-194.364
Percentage of IncreaseDecreaseInTradingSecurities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncrementalCommonSharesAttributableToParticipatingNonvestedSharesWithNonForfeitableDividendRights

us-gaap:IncrementalCommonSharesAttributableToParticipatingNonvestedSharesWithNonForfeitableDividendRights


Incremental
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
Value486580.0446410.01892.0428370.0431560.0390120.0-9930.0437100.0440860.0538970.0-10370.0537750.0546060.0632150.0-7454.0680440.0686520.0741810.0-7240.0810040.0823500.0834620.06615.0818300.0821640.0747800.016343.0819260.0802780.0626060.0-4184.0721770.0725870.0-754920.01036700.0-216470.0-679580.0603160.01555.0-544490.0-552940.0485900.0-1147.0-461740.0-464060.0
Percentage of IncrementalCommonSharesAttributableToParticipatingNonvestedSharesWithNonForfeitableDividendRights100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncrementalCommonSharesAttributableToShareBasedPaymentArrangements

us-gaap:IncrementalCommonSharesAttributableToShareBasedPaymentArrangements


Incremental
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
Value1776.04335.086.01424.01424.06481.0-389.013617.014970.017318.0-2776.033256.035251.040699.0-3582.062350.063382.067773.03479.072449.057039.034887.0-2540.094407.0114010.090106.0-5466.0153900.0151430.0162790.0-6040.0223680.0218680.0225630.03682.0368290.0272160.0276600.0-792.0209830.0271000.0274800.0-160.0139970.0274780.0
Percentage of IncrementalCommonSharesAttributableToShareBasedPaymentArrangements100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:InterestAndDividendIncomeOperating

us-gaap:InterestAndDividendIncomeOperating


Interest
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value295298319294306348369395390376365303294265255255235226215209202201196193191184186183182179187183185188194196203198198205205202197216217219
Percentage of InterestAndDividendIncomeOperating100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:InterestAndDividendIncomeSecuritiesHeldToMaturity

us-gaap:InterestAndDividendIncomeSecuritiesHeldToMaturity


Interest
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-30
Value2.6082.7262.8832.9393.03.1213.2663.2212.9054.0343.6573.5983.6633.8573.9943.9514.0054.1714.1584.1324.2174.3874.3774.4854.5664.674.8284.6114.6664.7864.8644.5974.7544.8264.9234.8885.2035.4115.6643.824.1243.7413.7163.567
Percentage of InterestAndDividendIncomeSecuritiesHeldToMaturity100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:InterestAndFeeIncomeLoansAndLeasesHeldInPortfolio

us-gaap:InterestAndFeeIncomeLoansAndLeasesHeldInPortfolio


Interest
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value193197214215215243263286293279274218210188182184168160153146141139136132133126128126125122124125124125129126131126129127123123127132131131
Percentage of InterestAndFeeIncomeLoansAndLeasesHeldInPortfolio100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:InterestAndFeeIncomeLoansHeldForSaleMortgages

us-gaap:InterestAndFeeIncomeLoansHeldForSaleMortgages


Interest
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value1.5691.381.5491.5852.141.1231.7971.8911.7541.6631.7952.1512.3331.8442.3892.0952.3861.8362.8353.6153.5082.72.9683.7933.8922.9493.1012.9292.5231.592.2512.1682.2941.7922.3232.311.7841.7682.0321.6161.5051.3392.7452.5922.1771.747
Percentage of InterestAndFeeIncomeLoansHeldForSaleMortgages100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:InterestExpenseDeposits

us-gaap:InterestExpenseDeposits


Interest
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value8.4259.8511141746484643373124201815141211109.8129.99710101011121212121213131314171516171922232425272627
Percentage of InterestExpenseDeposits100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:InterestExpenseShortTermBorrowings

us-gaap:InterestExpenseShortTermBorrowings


Interest
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value3.8064.6226.9794.8566.996374765585644353225212015119.3939.1918.787.9724.8093.7013.1212.5732.5662.2041.5681.3341.4551.8041.7761.5541.4981.6521.7921.5891.6492.3313.0151.8312.7423.3223.6573.613
Percentage of InterestExpenseShortTermBorrowings100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:InterestExpenseSubordinatedNotesAndDebentures

us-gaap:InterestExpenseSubordinatedNotesAndDebentures


Interest
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value3.3533.3473.3773.3953.5393.6333.7543.8133.8013.7453.7512.0252.0482.0032.0252.072.0032.0252.0032.4680.8780.710.6440.5961.6952.1652.1892.1542.1892.1582.1732.2092.22.1592.2392.4753.5125.5525.645.6275.5415.5775.6665.6645.5355.566
Percentage of InterestExpenseSubordinatedNotesAndDebentures100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:InterestIncomeDebtSecuritiesAvailableForSaleOperating

us-gaap:InterestIncomeDebtSecuritiesAvailableForSaleOperating


Interest
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-30
Value58586268696759
Percentage of InterestIncomeDebtSecuritiesAvailableForSaleOperating100.0100.0100.0100.0100.0100.0100.0

us-gaap:InterestIncomeDebtSecuritiesTradingOperating