$BOKF
BOK FINANCIAL CORP Stock $bokf

$bokf Overview Financials Valuation SEC Filings Company Website

2024 Q3 Form 10-Q Financial Statement

#000087535724000050 Filed on October 30, 2024

Income Statement

Concept	2024 Q3
Revenue	$680.3M
YoY Change	10.25%
Cost Of Revenue
YoY Change
Gross Profit
YoY Change
Gross Profit Margin
Selling, General & Admin
YoY Change
% of Gross Profit
Research & Development	$47.55M
YoY Change	4.12%
% of Gross Profit
Depreciation & Amortization	$26.33M
YoY Change	7.92%
% of Gross Profit
Operating Expenses	$47.55M
YoY Change	4.12%
Operating Profit
YoY Change
Interest Expense
YoY Change
% of Operating Profit
Other Income/Expense, Net
YoY Change
Pretax Income	$173.3M
YoY Change	3.31%
Income Tax	$33.31M
% Of Pretax Income	19.22%
Net Earnings	$140.0M
YoY Change	4.09%
Net Earnings / Revenue	20.58%
Basic Earnings Per Share	$2.18
Diluted Earnings Per Share	$2.18
COMMON SHARES
Basic Shares Outstanding	63.49M shares
Diluted Shares Outstanding	63.49M shares

Balance Sheet

Concept	2024 Q3
SHORT-TERM ASSETS
Cash & Short-Term Investments
YoY Change
Cash & Equivalents	$1.476B
Short-Term Investments
Other Short-Term Assets
YoY Change
Inventory
Prepaid Expenses
Receivables
Other Receivables
Total Short-Term Assets
YoY Change
LONG-TERM ASSETS
Property, Plant & Equipment	$632.8M
YoY Change	2.66%
Goodwill	$1.045B
YoY Change	0.0%
Intangibles	$51.21M
YoY Change	-22.19%
Long-Term Investments
YoY Change
Other Assets
YoY Change
Total Long-Term Assets
YoY Change
TOTAL ASSETS
Total Short-Term Assets
Total Long-Term Assets
Total Assets	$50.08B
YoY Change	2.35%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable	$340.3M
YoY Change	39.46%
Accrued Expenses
YoY Change
Deferred Revenue
YoY Change
Short-Term Debt	$743.9M
YoY Change	-72.68%
Long-Term Debt Due
YoY Change
Total Short-Term Liabilities	$1.084B
YoY Change	-63.46%
LONG-TERM LIABILITIES
Long-Term Debt	$161.1M
YoY Change	1.94%
Other Long-Term Liabilities	$1.294B
YoY Change	11.39%
Total Long-Term Liabilities	$1.455B
YoY Change	10.26%
TOTAL LIABILITIES
Total Short-Term Liabilities	$1.084B
Total Long-Term Liabilities	$1.455B
Total Liabilities	$44.47B
YoY Change	0.8%
SHAREHOLDERS EQUITY
Retained Earnings	$5.493B
YoY Change	6.35%
Common Stock	$1.425B
YoY Change	1.46%
Preferred Stock
YoY Change
Treasury Stock (at cost)	$970.2M
YoY Change	17.42%
Treasury Stock Shares
Shareholders Equity	$5.612B
YoY Change
Total Liabilities & Shareholders Equity	$50.08B
YoY Change	2.35%

Cashflow Statement

Concept	2024 Q3
OPERATING ACTIVITIES
Net Income	$140.0M
YoY Change	4.09%
Depreciation, Depletion And Amortization	$26.33M
YoY Change	7.92%
Cash From Operating Activities	$246.7M
YoY Change	-77.32%
INVESTING ACTIVITIES
Capital Expenditures	$37.18M
YoY Change	19.94%
Acquisitions
YoY Change
Other Investing Activities	$818.0M
YoY Change	-235.03%
Cash From Investing Activities	$780.8M
YoY Change	-222.62%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net
YoY Change
Debt Paid & Issued, Net
YoY Change
Cash From Financing Activities	-627.6M
YoY Change	19.96%
NET CHANGE
Cash From Operating Activities	246.7M
Cash From Investing Activities	780.8M
Cash From Financing Activities	-627.6M
Net Change In Cash	399.9M
YoY Change	-653.08%
FREE CASH FLOW
Cash From Operating Activities	$246.7M
Capital Expenditures	$37.18M
Free Cash Flow	$209.5M
YoY Change	-80.17%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
	dei	Entity Central Index Key EntityCentralIndexKey	0000875357
	dei	Current Fiscal Year End Date CurrentFiscalYearEndDate	--12-31
	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2024
	dei	Document Fiscal Period Focus DocumentFiscalPeriodFocus	Q3
	dei	Amendment Flag AmendmentFlag	false
	dei	Document Quarterly Report DocumentQuarterlyReport	true
	dei	Document Period End Date DocumentPeriodEndDate	2024-09-30
	dei	Document Transition Report DocumentTransitionReport	false
	dei	Entity File Number EntityFileNumber	001-37811
	dei	Entity Registrant Name EntityRegistrantName	BOK FINANCIAL CORP
	dei	Entity Incorporation State Country Code EntityIncorporationStateCountryCode	OK
	dei	Entity Tax Identification Number EntityTaxIdentificationNumber	73-1373454
	dei	Entity Address Address Line1 EntityAddressAddressLine1	Boston Avenue at Second Street
	dei	Entity Address City Or Town EntityAddressCityOrTown	Tulsa,
	dei	Entity Address State Or Province EntityAddressStateOrProvince	OK
	dei	Entity Interactive Data Current EntityInteractiveDataCurrent	Yes
	dei	Entity Filer Category EntityFilerCategory	Large Accelerated Filer
	dei	Entity Small Business EntitySmallBusiness	false
	dei	Entity Emerging Growth Company EntityEmergingGrowthCompany	false
	dei	Entity Shell Company EntityShellCompany	false
CY2024Q3	dei	Entity Common Stock Shares Outstanding EntityCommonStockSharesOutstanding	64118417	shares
CY2024Q3	us-gaap	Provision For Loan Lease And Other Losses ProvisionForLoanLeaseAndOtherLosses	2000000	usd
CY2023Q3	us-gaap	Provision For Loan Lease And Other Losses ProvisionForLoanLeaseAndOtherLosses	7000000	usd
CY2024Q3	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	-26000	usd
CY2023Q3	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	-16000	usd
CY2024Q3	us-gaap	Debt Securities Realized Gain Loss DebtSecuritiesRealizedGainLoss	-691000	usd
CY2024Q3	us-gaap	Interest And Fee Income Loans And Leases Held In Portfolio InterestAndFeeIncomeLoansAndLeasesHeldInPortfolio	453779000	usd
	us-gaap	Interest And Fee Income Loans And Leases Held In Portfolio InterestAndFeeIncomeLoansAndLeasesHeldInPortfolio	1192714000	usd
CY2024Q3	us-gaap	Interest And Fee Income Loans Held For Sale Mortgages InterestAndFeeIncomeLoansHeldForSaleMortgages	1495000	usd
CY2023Q3	us-gaap	Interest And Fee Income Loans Held For Sale Mortgages InterestAndFeeIncomeLoansHeldForSaleMortgages	1234000	usd
	us-gaap	Interest And Fee Income Loans Held For Sale Mortgages InterestAndFeeIncomeLoansHeldForSaleMortgages	3766000	usd
	us-gaap	Interest And Fee Income Loans Held For Sale Mortgages InterestAndFeeIncomeLoansHeldForSaleMortgages	3305000	usd
CY2024Q3	us-gaap	Interest Income Debt Securities Trading Operating InterestIncomeDebtSecuritiesTradingOperating	76419000	usd
CY2023Q3	us-gaap	Interest Income Debt Securities Trading Operating InterestIncomeDebtSecuritiesTradingOperating	65221000	usd
	us-gaap	Interest Income Debt Securities Trading Operating InterestIncomeDebtSecuritiesTradingOperating	147051000	usd
CY2024Q3	us-gaap	Interest And Dividend Income Securities Held To Maturity InterestAndDividendIncomeSecuritiesHeldToMaturity	7381000	usd
CY2023Q3	us-gaap	Interest And Dividend Income Securities Held To Maturity InterestAndDividendIncomeSecuritiesHeldToMaturity	8276000	usd
	us-gaap	Interest And Dividend Income Securities Held To Maturity InterestAndDividendIncomeSecuritiesHeldToMaturity	22774000	usd
	us-gaap	Interest And Dividend Income Securities Held To Maturity InterestAndDividendIncomeSecuritiesHeldToMaturity	25790000	usd
CY2024Q3	us-gaap	Interest Income Debt Securities Available For Sale Operating InterestIncomeDebtSecuritiesAvailableForSaleOperating	125490000	usd
CY2023Q3	us-gaap	Interest Income Debt Securities Available For Sale Operating InterestIncomeDebtSecuritiesAvailableForSaleOperating	99124000	usd
	us-gaap	Interest Income Debt Securities Available For Sale Operating InterestIncomeDebtSecuritiesAvailableForSaleOperating	362806000	usd
	us-gaap	Interest Income Debt Securities Available For Sale Operating InterestIncomeDebtSecuritiesAvailableForSaleOperating	282449000	usd
CY2024Q3	bokf	Interest Revenue On Fair Value Option Securities InterestRevenueOnFairValueOptionSecurities	189000	usd
CY2024Q3	us-gaap	Interest Income Domestic Deposits InterestIncomeDomesticDeposits	7131000	usd
CY2023Q3	us-gaap	Interest Income Domestic Deposits InterestIncomeDomesticDeposits	8199000	usd
	us-gaap	Interest Income Domestic Deposits InterestIncomeDomesticDeposits	21912000	usd
	us-gaap	Interest Income Domestic Deposits InterestIncomeDomesticDeposits	24257000	usd
	us-gaap	Interest And Dividend Income Operating InterestAndDividendIncomeOperating	1997339000	usd
	us-gaap	Interest And Dividend Income Operating InterestAndDividendIncomeOperating	1704140000	usd
CY2024Q3	us-gaap	Interest Expense Deposits InterestExpenseDeposits	271128000	usd
CY2023Q3	us-gaap	Interest Expense Deposits InterestExpenseDeposits	184808000	usd
	us-gaap	Interest Expense Deposits InterestExpenseDeposits	768005000	usd
	us-gaap	Interest Expense Deposits InterestExpenseDeposits	416748000	usd
CY2024Q3	us-gaap	Interest Expense Short Term Borrowings InterestExpenseShortTermBorrowings	98706000	usd
CY2023Q3	us-gaap	Interest Expense Short Term Borrowings InterestExpenseShortTermBorrowings	129019000	usd
	us-gaap	Interest Expense Short Term Borrowings InterestExpenseShortTermBorrowings	324647000	usd
	us-gaap	Interest Expense Short Term Borrowings InterestExpenseShortTermBorrowings	305278000	usd
CY2024Q3	us-gaap	Interest Expense Subordinated Notes And Debentures InterestExpenseSubordinatedNotesAndDebentures	2357000	usd
CY2023Q3	us-gaap	Interest Expense Subordinated Notes And Debentures InterestExpenseSubordinatedNotesAndDebentures	2321000	usd
	us-gaap	Interest Expense Subordinated Notes And Debentures InterestExpenseSubordinatedNotesAndDebentures	6975000	usd
	us-gaap	Interest Expense Subordinated Notes And Debentures InterestExpenseSubordinatedNotesAndDebentures	6609000	usd
	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	897712000	usd
	us-gaap	Interest Income Expense After Provision For Loan Loss InterestIncomeExpenseAfterProvisionForLoanLoss	879712000	usd
CY2024Q3	bokf	Total Fees And Commissions TotalFeesAndCommissions	202494000	usd
CY2023Q3	bokf	Total Fees And Commissions TotalFeesAndCommissions	197852000	usd
	bokf	Total Fees And Commissions TotalFeesAndCommissions	603085000	usd
	bokf	Total Fees And Commissions TotalFeesAndCommissions	584328000	usd
CY2024Q3	us-gaap	Gain Loss On Disposition Of Assets1 GainLossOnDispositionOfAssets1	13087000	usd
CY2023Q3	us-gaap	Gain Loss On Disposition Of Assets1 GainLossOnDispositionOfAssets1	1474000	usd
	us-gaap	Gain Loss On Disposition Of Assets1 GainLossOnDispositionOfAssets1	74731000	usd
	us-gaap	Gain Loss On Disposition Of Assets1 GainLossOnDispositionOfAssets1	16343000	usd
CY2024Q3	us-gaap	Derivative Instruments Not Designated As Hedging Instruments Gain Loss Net DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsGainLossNet	8991000	usd
CY2023Q3	us-gaap	Derivative Instruments Not Designated As Hedging Instruments Gain Loss Net DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsGainLossNet	-9010000	usd
	us-gaap	Derivative Instruments Not Designated As Hedging Instruments Gain Loss Net DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsGainLossNet	-733000	usd
	us-gaap	Derivative Instruments Not Designated As Hedging Instruments Gain Loss Net DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsGainLossNet	-18513000	usd
CY2024Q3	us-gaap	Noninterest Income NoninterestIncome	208192000	usd
CY2023Q3	us-gaap	Noninterest Income NoninterestIncome	198152000	usd
	us-gaap	Noninterest Income NoninterestIncome	629597000	usd
	us-gaap	Noninterest Income NoninterestIncome	585066000	usd
CY2024Q3	us-gaap	Labor And Related Expense LaborAndRelatedExpense	206821000	usd
CY2023Q3	us-gaap	Labor And Related Expense LaborAndRelatedExpense	190791000	usd
	us-gaap	Labor And Related Expense LaborAndRelatedExpense	600564000	usd
	us-gaap	Labor And Related Expense LaborAndRelatedExpense	563588000	usd
CY2024Q3	us-gaap	Marketing And Advertising Expense MarketingAndAdvertisingExpense	7681000	usd
CY2023Q3	us-gaap	Marketing And Advertising Expense MarketingAndAdvertisingExpense	6958000	usd
	us-gaap	Marketing And Advertising Expense MarketingAndAdvertisingExpense	23909000	usd
	us-gaap	Marketing And Advertising Expense MarketingAndAdvertisingExpense	23167000	usd
CY2024Q3	bokf	Contributions To Bokf Foundation ContributionsToBOKFFoundation	0	usd
CY2023Q3	bokf	Contributions To Bokf Foundation ContributionsToBOKFFoundation	23000	usd
	bokf	Contributions To Bokf Foundation ContributionsToBOKFFoundation	13610000	usd
	bokf	Contributions To Bokf Foundation ContributionsToBOKFFoundation	1165000	usd
CY2024Q3	us-gaap	Professional Fees ProfessionalFees	13405000	usd
CY2023Q3	us-gaap	Professional Fees ProfessionalFees	13224000	usd
	us-gaap	Professional Fees ProfessionalFees	38746000	usd
	us-gaap	Professional Fees ProfessionalFees	39049000	usd
CY2024Q3	us-gaap	Occupancy Net OccupancyNet	32077000	usd
CY2023Q3	us-gaap	Occupancy Net OccupancyNet	32583000	usd
	us-gaap	Occupancy Net OccupancyNet	92615000	usd
	us-gaap	Occupancy Net OccupancyNet	91147000	usd
CY2024Q3	us-gaap	Federal Deposit Insurance Corporation Premium Expense FederalDepositInsuranceCorporationPremiumExpense	8186000	usd
CY2023Q3	us-gaap	Federal Deposit Insurance Corporation Premium Expense FederalDepositInsuranceCorporationPremiumExpense	7996000	usd
	us-gaap	Federal Deposit Insurance Corporation Premium Expense FederalDepositInsuranceCorporationPremiumExpense	24243000	usd
	us-gaap	Federal Deposit Insurance Corporation Premium Expense FederalDepositInsuranceCorporationPremiumExpense	22285000	usd
CY2023Q3	us-gaap	Debt Securities Realized Gain Loss DebtSecuritiesRealizedGainLoss	0	usd
CY2024Q3	us-gaap	Interest And Dividend Income Operating InterestAndDividendIncomeOperating	680310000	usd
CY2023Q3	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	300896000	usd
CY2024Q3	us-gaap	Interest Income Expense After Provision For Loan Loss InterestIncomeExpenseAfterProvisionForLoanLoss	306119000	usd
	us-gaap	Interest Income Expense After Provision For Loan Loss InterestIncomeExpenseAfterProvisionForLoanLoss	935505000	usd
CY2024Q3	us-gaap	Mortgage Servicing Rights Msr Impairment Recovery MortgageServicingRightsMSRImpairmentRecovery	16453000	usd
	us-gaap	Debt Securities Realized Gain Loss DebtSecuritiesRealizedGainLoss	-45828000	usd
	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesBeforeTax	-45828000	usd
	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesBeforeTax	-3010000	usd
CY2024Q3	us-gaap	Other Comprehensive Income Loss Before Tax OtherComprehensiveIncomeLossBeforeTax	353307000	usd
CY2023Q3	us-gaap	Other Comprehensive Income Loss Before Tax OtherComprehensiveIncomeLossBeforeTax	-120702000	usd
	us-gaap	Other Comprehensive Income Loss Before Tax OtherComprehensiveIncomeLossBeforeTax	344905000	usd
	us-gaap	Other Comprehensive Income Loss Before Tax OtherComprehensiveIncomeLossBeforeTax	-121971000	usd
	us-gaap	Other Comprehensive Income Loss Tax OtherComprehensiveIncomeLossTax	-29941000	usd
CY2024Q3	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	270213000	usd
CY2023Q3	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-92313000	usd
	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	263811000	usd
	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-92030000	usd
	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	356581000	usd
CY2024Q3	us-gaap	Comprehensive Income Net Of Tax Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest	-26000	usd
CY2023Q3	us-gaap	Comprehensive Income Net Of Tax Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest	-16000	usd
	us-gaap	Comprehensive Income Net Of Tax Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest	-16000	usd
	us-gaap	Comprehensive Income Net Of Tax Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest	440000	usd
CY2023Q3	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	42182000	usd
	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	651226000	usd
	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	356141000	usd
CY2023Q4	us-gaap	Trading Securities TradingSecurities	5193505000	usd
CY2024Q3	us-gaap	Held To Maturity Securities Fair Value HeldToMaturitySecuritiesFairValue	1937907000	usd
CY2023Q3	us-gaap	Held To Maturity Securities Fair Value HeldToMaturitySecuritiesFairValue	2072586000	usd
CY2024Q3	us-gaap	Held To Maturity Securities HeldToMaturitySecurities	2069865000	usd
CY2023Q4	us-gaap	Held To Maturity Securities HeldToMaturitySecurities	2244153000	usd
CY2024Q3	us-gaap	Available For Sale Securities Debt Securities AvailableForSaleSecuritiesDebtSecurities	13015986000	usd
CY2023Q4	us-gaap	Available For Sale Securities Debt Securities AvailableForSaleSecuritiesDebtSecurities	12286681000	usd
CY2024Q3	bokf	Fair Value Option Securities FairValueOptionSecurities	19172000	usd
CY2023Q4	bokf	Fair Value Option Securities FairValueOptionSecurities	20671000	usd
CY2024Q3	us-gaap	Federal Home Loan Bank Stock And Federal Reserve Bank Stock FederalHomeLoanBankStockAndFederalReserveBankStock	389335000	usd
CY2023Q4	us-gaap	Federal Home Loan Bank Stock And Federal Reserve Bank Stock FederalHomeLoanBankStockAndFederalReserveBankStock	423099000	usd
CY2024Q3	us-gaap	Loans Receivable Held For Sale Net Not Part Of Disposal Group LoansReceivableHeldForSaleNetNotPartOfDisposalGroup	95494000	usd
CY2023Q4	us-gaap	Loans Receivable Held For Sale Net Not Part Of Disposal Group LoansReceivableHeldForSaleNetNotPartOfDisposalGroup	56935000	usd
CY2024Q3	us-gaap	Loans And Leases Receivable Gross Carrying Amount LoansAndLeasesReceivableGrossCarryingAmount	23985061000	usd
CY2023Q4	us-gaap	Loans And Leases Receivable Gross Carrying Amount LoansAndLeasesReceivableGrossCarryingAmount	23904968000	usd
CY2024Q3	us-gaap	Loans And Leases Receivable Allowance LoansAndLeasesReceivableAllowance	284456000	usd
CY2023Q4	us-gaap	Loans And Leases Receivable Allowance LoansAndLeasesReceivableAllowance	277123000	usd
CY2024Q3	us-gaap	Loans And Leases Receivable Net Reported Amount LoansAndLeasesReceivableNetReportedAmount	23700605000	usd
CY2023Q4	us-gaap	Loans And Leases Receivable Net Reported Amount LoansAndLeasesReceivableNetReportedAmount	23627845000	usd
CY2024Q3	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	632819000	usd
CY2023Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	622223000	usd
CY2023Q4	us-gaap	Accrued Investment Income Receivable AccruedInvestmentIncomeReceivable	317922000	usd
CY2024Q3	us-gaap	Goodwill Goodwill	1044749000	usd
CY2024Q3	us-gaap	Intangible Assets Net Excluding Goodwill IntangibleAssetsNetExcludingGoodwill	51205000	usd
CY2023Q4	us-gaap	Servicing Asset At Fair Value Amount ServicingAssetAtFairValueAmount	293884000	usd
CY2024Q3	us-gaap	Real Estate Owned Valuation Allowance RealEstateOwnedValuationAllowance	5359000	usd
CY2023Q4	us-gaap	Real Estate Owned Valuation Allowance RealEstateOwnedValuationAllowance	5355000	usd
CY2024Q3	us-gaap	Other Real Estate And Foreclosed Assets OtherRealEstateAndForeclosedAssets	2625000	usd
CY2023Q4	us-gaap	Other Real Estate And Foreclosed Assets OtherRealEstateAndForeclosedAssets	2875000	usd
CY2024Q3	us-gaap	Derivative Assets DerivativeAssets	334382000	usd
CY2023Q4	us-gaap	Derivative Assets DerivativeAssets	410304000	usd
CY2024Q3	us-gaap	Bank Owned Life Insurance BankOwnedLifeInsurance	413682000	usd
CY2023Q4	us-gaap	Demand Deposit Accounts DemandDepositAccounts	20964101000	usd
CY2024Q3	us-gaap	Deposits Savings Deposits DepositsSavingsDeposits	816707000	usd
CY2023Q4	us-gaap	Deposits Savings Deposits DepositsSavingsDeposits	847085000	usd
CY2024Q3	us-gaap	Time Deposits TimeDeposits	3837956000	usd
CY2023Q4	us-gaap	Time Deposits TimeDeposits	3012022000	usd
CY2024Q3	us-gaap	Deposits Deposits	37227118000	usd
CY2023Q4	us-gaap	Deposits Deposits	34019701000	usd
CY2024Q3	us-gaap	Federal Funds Purchased And Securities Sold Under Agreements To Repurchase FederalFundsPurchasedAndSecuritiesSoldUnderAgreementsToRepurchase	743903000	usd
CY2023Q4	us-gaap	Federal Funds Purchased And Securities Sold Under Agreements To Repurchase FederalFundsPurchasedAndSecuritiesSoldUnderAgreementsToRepurchase	1122748000	usd
CY2024Q3	us-gaap	Other Borrowings OtherBorrowings	4729880000	usd
CY2023Q4	us-gaap	Other Borrowings OtherBorrowings	7701552000	usd
CY2024Q3	us-gaap	Subordinated Debt SubordinatedDebt	131188000	usd
CY2023Q4	us-gaap	Subordinated Debt SubordinatedDebt	131150000	usd
CY2023Q4	us-gaap	Accounts Payable And Accrued Liabilities Current And Noncurrent AccountsPayableAndAccruedLiabilitiesCurrentAndNoncurrent	338996000	usd
CY2024Q3	us-gaap	Derivative Liabilities DerivativeLiabilities	402559000	usd
CY2023Q4	us-gaap	Derivative Liabilities DerivativeLiabilities	587473000	usd
CY2024Q3	srt	Payables To Broker Dealers And Clearing Organizations PayablesToBrokerDealersAndClearingOrganizations	377240000	usd
CY2023Q4	srt	Payables To Broker Dealers And Clearing Organizations PayablesToBrokerDealersAndClearingOrganizations	254057000	usd
CY2024Q3	us-gaap	Other Liabilities OtherLiabilities	514609000	usd
CY2023Q4	us-gaap	Other Liabilities OtherLiabilities	523734000	usd
CY2024Q3	us-gaap	Liabilities Liabilities	44466787000	usd
CY2023Q4	us-gaap	Liabilities Liabilities	44679411000	usd
CY2023Q4	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.00006
CY2024Q3	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.00006
CY2023Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	2500000000	shares
CY2024Q3	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	2500000000	shares
CY2024Q3	us-gaap	Common Stock Value CommonStockValue	5000	usd
CY2024Q3	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	35146000	usd
CY2024Q3	us-gaap	Minority Interest Decrease From Distributions To Noncontrolling Interest Holders MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders	59000	usd
CY2024Q3	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	5615198000	usd
CY2023Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	5145419000	usd
	us-gaap	Profit Loss ProfitLoss	387399000	usd
	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	263811000	usd
	us-gaap	Treasury Stock Value Acquired Par Value Method TreasuryStockValueAcquiredParValueMethod	89779000	usd
	us-gaap	Adjustments Related To Tax Withholding For Share Based Compensation AdjustmentsRelatedToTaxWithholdingForShareBasedCompensation	3700000	usd
	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	18379000	usd
	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	106125000	usd
	us-gaap	Minority Interest Decrease From Distributions To Noncontrolling Interest Holders MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders	206000	usd
CY2024Q3	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	5615198000	usd
CY2023Q2	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	4867397000	usd
CY2023Q3	us-gaap	Profit Loss ProfitLoss	134479000	usd
CY2023Q3	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-92313000	usd
CY2023Q3	us-gaap	Treasury Stock Value Acquired Par Value Method TreasuryStockValueAcquiredParValueMethod	59545000	usd
CY2023Q3	us-gaap	Off Balance Sheet Credit Loss Liability OffBalanceSheetCreditLossLiability	52604000	usd
CY2023Q3	us-gaap	Off Balance Sheet Credit Loss Liability OffBalanceSheetCreditLossLiability	52604000	usd
CY2024Q3	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	5615198000	usd
CY2023Q3	us-gaap	Servicing Asset At Fair Value Amount ServicingAssetAtFairValueAmount	311382000	usd
CY2023Q3	us-gaap	Interest And Dividend Income Operating InterestAndDividendIncomeOperating	617044000	usd
CY2024Q3	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	308119000	usd
CY2024Q3	bokf	Gain Loss On Fair Value Option Securities Net GainLossOnFairValueOptionSecuritiesNet	764000	usd
CY2023Q3	bokf	Gain Loss On Fair Value Option Securities Net GainLossOnFairValueOptionSecuritiesNet	-203000	usd
	bokf	Gain Loss On Fair Value Option Securities Net GainLossOnFairValueOptionSecuritiesNet	365000	usd
	bokf	Gain Loss On Fair Value Option Securities Net GainLossOnFairValueOptionSecuritiesNet	-5323000	usd
CY2023Q3	us-gaap	Mortgage Servicing Rights Msr Impairment Recovery MortgageServicingRightsMSRImpairmentRecovery	-8039000	usd
	us-gaap	Mortgage Servicing Rights Msr Impairment Recovery MortgageServicingRightsMSRImpairmentRecovery	2023000	usd
	us-gaap	Mortgage Servicing Rights Msr Impairment Recovery MortgageServicingRightsMSRImpairmentRecovery	-11241000	usd
CY2024Q3	us-gaap	Debt Securities Realized Gain Loss DebtSecuritiesRealizedGainLoss	-691000	usd
CY2023Q3	us-gaap	Debt Securities Realized Gain Loss DebtSecuritiesRealizedGainLoss	0	usd
	us-gaap	Debt Securities Realized Gain Loss DebtSecuritiesRealizedGainLoss	-3010000	usd
CY2024Q3	bokf	Federal Deposit Insurance Corporation Fdic Special Assessment FederalDepositInsuranceCorporationFDICSpecialAssessment	-1437000	usd
CY2023Q3	bokf	Federal Deposit Insurance Corporation Fdic Special Assessment FederalDepositInsuranceCorporationFDICSpecialAssessment	0	usd
CY2023Q3	us-gaap	Supplies And Postage Expense SuppliesAndPostageExpense	3760000	usd
	us-gaap	Supplies And Postage Expense SuppliesAndPostageExpense	11380000	usd
	us-gaap	Supplies And Postage Expense SuppliesAndPostageExpense	11381000	usd
CY2024Q3	bokf	Mortgage Banking Costs MortgageBankingCosts	9059000	usd
CY2023Q3	bokf	Mortgage Banking Costs MortgageBankingCosts	8357000	usd
	bokf	Mortgage Banking Costs MortgageBankingCosts	23946000	usd
	bokf	Mortgage Banking Costs MortgageBankingCosts	22439000	usd
CY2024Q3	us-gaap	Other Noninterest Expense OtherNoninterestExpense	11229000	usd
CY2023Q3	us-gaap	Other Noninterest Expense OtherNoninterestExpense	11475000	usd
	us-gaap	Other Noninterest Expense OtherNoninterestExpense	34873000	usd
	us-gaap	Other Noninterest Expense OtherNoninterestExpense	28457000	usd
CY2024Q3	us-gaap	Noninterest Expense NoninterestExpense	341025000	usd
CY2023Q3	us-gaap	Noninterest Expense NoninterestExpense	324313000	usd
	us-gaap	Noninterest Expense NoninterestExpense	1018099000	usd
	us-gaap	Noninterest Expense NoninterestExpense	948798000	usd
CY2024Q3	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	173286000	usd
CY2023Q3	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	167735000	usd
	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	491210000	usd
	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	571773000	usd
CY2024Q3	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	33313000	usd
CY2023Q3	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	33256000	usd
	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	103811000	usd
	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	123162000	usd
CY2024Q3	us-gaap	Profit Loss ProfitLoss	139973000	usd
	us-gaap	Profit Loss ProfitLoss	448611000	usd
CY2024Q3	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	-26000	usd
	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	6.01
	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	6.74
CY2024Q3	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	63489581	shares
CY2023Q3	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	65548307	shares
	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	63830188	shares
	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	65955294	shares
CY2024Q3	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	63489581	shares
CY2023Q3	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	65548307	shares
	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	63830188	shares
	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	65955294	shares
CY2024Q3	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.55
CY2023Q3	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.54
	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	1.65
	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	1.62
CY2024Q3	us-gaap	Profit Loss ProfitLoss	139973000	usd
CY2023Q3	us-gaap	Profit Loss ProfitLoss	134479000	usd
	us-gaap	Profit Loss ProfitLoss	387399000	usd
	us-gaap	Profit Loss ProfitLoss	448611000	usd
CY2024Q3	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Before Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodBeforeTax	341185000	usd
CY2023Q3	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Before Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodBeforeTax	-135614000	usd
	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Before Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodBeforeTax	263436000	usd
	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Before Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodBeforeTax	-171977000	usd
CY2024Q3	us-gaap	Oci Debt Securities Available For Sale Transfer To Held To Maturity Adjustment From Aoci For Amortization Of Gain Loss Before Tax OciDebtSecuritiesAvailableForSaleTransferToHeldToMaturityAdjustmentFromAociForAmortizationOfGainLossBeforeTax	-11431000	usd
CY2023Q3	us-gaap	Oci Debt Securities Available For Sale Transfer To Held To Maturity Adjustment From Aoci For Amortization Of Gain Loss Before Tax OciDebtSecuritiesAvailableForSaleTransferToHeldToMaturityAdjustmentFromAociForAmortizationOfGainLossBeforeTax	-14912000	usd
	us-gaap	Oci Debt Securities Available For Sale Transfer To Held To Maturity Adjustment From Aoci For Amortization Of Gain Loss Before Tax OciDebtSecuritiesAvailableForSaleTransferToHeldToMaturityAdjustmentFromAociForAmortizationOfGainLossBeforeTax	-35641000	usd
	us-gaap	Oci Debt Securities Available For Sale Transfer To Held To Maturity Adjustment From Aoci For Amortization Of Gain Loss Before Tax OciDebtSecuritiesAvailableForSaleTransferToHeldToMaturityAdjustmentFromAociForAmortizationOfGainLossBeforeTax	-46996000	usd
CY2024Q3	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesBeforeTax	-691000	usd
CY2023Q3	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesBeforeTax	0	usd
CY2024Q3	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	410212000	usd
CY2024Q3	us-gaap	Cash And Due From Banks CashAndDueFromBanks	928997000	usd
CY2023Q4	us-gaap	Cash And Due From Banks CashAndDueFromBanks	947613000	usd
CY2024Q3	us-gaap	Interest Bearing Deposits In Banks InterestBearingDepositsInBanks	547043000	usd
CY2023Q4	us-gaap	Interest Bearing Deposits In Banks InterestBearingDepositsInBanks	400652000	usd
CY2024Q3	us-gaap	Trading Securities TradingSecurities	5139725000	usd
CY2024Q3	us-gaap	Accrued Investment Income Receivable AccruedInvestmentIncomeReceivable	299686000	usd
CY2024Q3	us-gaap	Other Assets OtherAssets	982169000	usd
CY2024Q3	us-gaap	Accounts Payable And Accrued Liabilities Current And Noncurrent AccountsPayableAndAccruedLiabilitiesCurrentAndNoncurrent	340290000	usd
CY2023Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	76593292	shares
CY2023Q3	us-gaap	Adjustments Related To Tax Withholding For Share Based Compensation AdjustmentsRelatedToTaxWithholdingForShareBasedCompensation	0	usd
CY2023Q3	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	3159000	usd
	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	14273000	usd
	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	107738000	usd
	us-gaap	Minority Interest Decrease From Distributions To Noncontrolling Interest Holders MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders	1960000	usd
CY2023Q3	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	4817208000	usd
	us-gaap	Profit Loss ProfitLoss	387399000	usd
	us-gaap	Profit Loss ProfitLoss	448611000	usd
	us-gaap	Provision For Loan Lease And Other Losses ProvisionForLoanLeaseAndOtherLosses	18000000	usd
	us-gaap	Provision For Loan Lease And Other Losses ProvisionForLoanLeaseAndOtherLosses	40000000	usd
	us-gaap	Mortgage Servicing Rights Msr Impairment Recovery MortgageServicingRightsMSRImpairmentRecovery	2023000	usd
	us-gaap	Mortgage Servicing Rights Msr Impairment Recovery MortgageServicingRightsMSRImpairmentRecovery	-11241000	usd
	bokf	Changeinfairvalueofmortgageservicingrightsduetoloanrunoff Changeinfairvalueofmortgageservicingrightsduetoloanrunoff	21508000	usd
	bokf	Changeinfairvalueofmortgageservicingrightsduetoloanrunoff Changeinfairvalueofmortgageservicingrightsduetoloanrunoff	21031000	usd
	us-gaap	Unrealized Gain Loss On Derivatives UnrealizedGainLossOnDerivatives	123979000	usd
	us-gaap	Unrealized Gain Loss On Derivatives UnrealizedGainLossOnDerivatives	55127000	usd
	us-gaap	Share Based Compensation ShareBasedCompensation	18379000	usd
	us-gaap	Share Based Compensation ShareBasedCompensation	14273000	usd
	us-gaap	Depreciation Amortization And Accretion Net DepreciationAmortizationAndAccretionNet	78408000	usd
	us-gaap	Depreciation Amortization And Accretion Net DepreciationAmortizationAndAccretionNet	81002000	usd
	us-gaap	Accretion Amortization Of Discounts And Premiums Investments AccretionAmortizationOfDiscountsAndPremiumsInvestments	31633000	usd
	us-gaap	Accretion Amortization Of Discounts And Premiums Investments AccretionAmortizationOfDiscountsAndPremiumsInvestments	14216000	usd
	us-gaap	Realized Investment Gains Losses RealizedInvestmentGainsLosses	29012000	usd
	us-gaap	Realized Investment Gains Losses RealizedInvestmentGainsLosses	12702000	usd
	us-gaap	Payments For Origination Of Mortgage Loans Held For Sale PaymentsForOriginationOfMortgageLoansHeldForSale	603963000	usd
	us-gaap	Payments For Origination Of Mortgage Loans Held For Sale PaymentsForOriginationOfMortgageLoansHeldForSale	527136000	usd
	us-gaap	Proceeds From Sale Of Mortgage Loans Held For Sale ProceedsFromSaleOfMortgageLoansHeldForSale	572861000	usd
	us-gaap	Proceeds From Sale Of Mortgage Loans Held For Sale ProceedsFromSaleOfMortgageLoansHeldForSale	527115000	usd
	bokf	Capitalizedmortgageservicingrights Capitalizedmortgageservicingrights	10812000	usd
	bokf	Capitalizedmortgageservicingrights Capitalizedmortgageservicingrights	9757000	usd
	bokf	Non Cash Contributions To Bokf Foundation NonCashContributionsToBOKFFoundation	13610000	usd
	bokf	Non Cash Contributions To Bokf Foundation NonCashContributionsToBOKFFoundation	0	usd
	us-gaap	Increase Decrease In Trading Securities IncreaseDecreaseInTradingSecurities	-55270000	usd
	us-gaap	Payments For Proceeds From Loans And Leases PaymentsForProceedsFromLoansAndLeases	1168401000	usd
	us-gaap	Payments For Proceeds From Derivative Instrument Investing Activities PaymentsForProceedsFromDerivativeInstrumentInvestingActivities	13870000	usd
	us-gaap	Payments For Proceeds From Derivative Instrument Investing Activities PaymentsForProceedsFromDerivativeInstrumentInvestingActivities	-143543000	usd
	us-gaap	Payments To Acquire Restricted Investments PaymentsToAcquireRestrictedInvestments	135461000	usd
	us-gaap	Proceeds From Sale Of Productive Assets ProceedsFromSaleOfProductiveAssets	18029000	usd
	us-gaap	Proceeds From Sale Of Productive Assets ProceedsFromSaleOfProductiveAssets	36993000	usd
	us-gaap	Payments To Acquire Productive Assets PaymentsToAcquireProductiveAssets	124451000	usd
	us-gaap	Payments To Acquire Productive Assets PaymentsToAcquireProductiveAssets	128902000	usd
	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-338392000	usd
	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-1606128000	usd
	bokf	Net Change In Demand Deposits Transaction Deposits And Savings Accounts NetChangeInDemandDepositsTransactionDepositsAndSavingsAccounts	2381483000	usd
	bokf	Net Change In Demand Deposits Transaction Deposits And Savings Accounts NetChangeInDemandDepositsTransactionDepositsAndSavingsAccounts	-2293528000	usd
	us-gaap	Increase Decrease In Time Deposits IncreaseDecreaseInTimeDeposits	825934000	usd
	us-gaap	Increase Decrease In Time Deposits IncreaseDecreaseInTimeDeposits	1465375000	usd
	us-gaap	Proceeds From Repayments Of Other Debt ProceedsFromRepaymentsOfOtherDebt	-3363116000	usd
	us-gaap	Proceeds From Repayments Of Other Debt ProceedsFromRepaymentsOfOtherDebt	1906678000	usd
	us-gaap	Payments For Proceeds From Derivative Instrument Financing Activities PaymentsForProceedsFromDerivativeInstrumentFinancingActivities	-14294000	usd
	us-gaap	Payments For Proceeds From Derivative Instrument Financing Activities PaymentsForProceedsFromDerivativeInstrumentFinancingActivities	153692000	usd
	bokf	Net Change In Derivative Margin Accounts NetChangeInDerivativeMarginAccounts	37060000	usd
	bokf	Net Change In Derivative Margin Accounts NetChangeInDerivativeMarginAccounts	312397000	usd
	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	-119332000	usd
	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	53219000	usd
	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	-3700000	usd
	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	-4695000	usd
	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	89779000	usd
	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	126611000	usd
	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	106125000	usd
	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	107738000	usd
	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-423281000	usd
	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	1051405000	usd
	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	127775000	usd
	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	-26781000	usd
CY2023Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	1348265000	usd
CY2022Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	1401716000	usd
CY2024Q3	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	1476040000	usd
CY2023Q3	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	1374935000	usd
	us-gaap	Interest Paid Net InterestPaidNet	1097666000	usd
	us-gaap	Interest Paid Net InterestPaidNet	706011000	usd
	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	67803000	usd
	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	156092000	usd
	us-gaap	Transfer To Other Real Estate TransferToOtherRealEstate	440000	usd
	us-gaap	Transfer To Other Real Estate TransferToOtherRealEstate	367000	usd
CY2024Q3	us-gaap	Held To Maturity Securities Accumulated Unrecognized Holding Loss HeldToMaturitySecuritiesAccumulatedUnrecognizedHoldingLoss	135961000	usd
CY2024Q3	us-gaap	Debt Securities Held To Maturity Allowance For Credit Loss DebtSecuritiesHeldToMaturityAllowanceForCreditLoss	234000	usd
CY2024Q3	us-gaap	Debt Securities Held To Maturity Allowance For Credit Loss DebtSecuritiesHeldToMaturityAllowanceForCreditLoss	234000	usd
CY2024Q3	us-gaap	Debt Securities Held To Maturity Amortized Cost After Allowance For Credit Loss DebtSecuritiesHeldToMaturityAmortizedCostAfterAllowanceForCreditLoss	2198825000	usd
CY2024Q3	bokf	Debt Securities Held To Maturity Carrying Value After Allowance For Credit Loss DebtSecuritiesHeldToMaturityCarryingValueAfterAllowanceForCreditLoss	2069865000	usd
CY2024Q3	us-gaap	Held To Maturity Securities Fair Value HeldToMaturitySecuritiesFairValue	1937907000	usd
CY2024Q3	us-gaap	Held To Maturity Securities Accumulated Unrecognized Holding Gain HeldToMaturitySecuritiesAccumulatedUnrecognizedHoldingGain	3769000	usd
CY2024Q3	us-gaap	Held To Maturity Securities Accumulated Unrecognized Holding Loss HeldToMaturitySecuritiesAccumulatedUnrecognizedHoldingLoss	135961000	usd
	bokf	Debt Securities Net Unrealized Loss Remaining In Aoci Included In Carrying Value For Afs Securities Transferred To Investment Securities DebtSecuritiesNetUnrealizedLossRemainingInAOCIIncludedInCarryingValueForAFSSecuritiesTransferredToInvestmentSecurities	-129000000	usd
CY2023Q4	bokf	Debt Securities Heldtomaturitygross DebtSecuritiesHeldtomaturitygross	2409090000	usd
CY2023Q4	bokf	Debt Securities Held To Maturity Carrying Value DebtSecuritiesHeldToMaturityCarryingValue	2244489000	usd
CY2023Q4	us-gaap	Held To Maturity Securities Fair Value HeldToMaturitySecuritiesFairValue	2072586000	usd
CY2023Q4	us-gaap	Held To Maturity Securities Accumulated Unrecognized Holding Gain HeldToMaturitySecuritiesAccumulatedUnrecognizedHoldingGain	5139000	usd
CY2023Q4	us-gaap	Debt Securities Held To Maturity Allowance For Credit Loss DebtSecuritiesHeldToMaturityAllowanceForCreditLoss	336000	usd
CY2023Q4	us-gaap	Held To Maturity Securities Continuous Unrealized Loss Position Twelve Months Or Longer Fair Value HeldToMaturitySecuritiesContinuousUnrealizedLossPositionTwelveMonthsOrLongerFairValue	1947071000	usd
CY2023Q4	us-gaap	Held To Maturity Securities Continuous Unrealized Loss Position12 Months Or Longer Accumulated Loss HeldToMaturitySecuritiesContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss	177037000	usd
CY2023Q4	us-gaap	Held To Maturity Securities Continuous Unrealized Loss Position Fair Value HeldToMaturitySecuritiesContinuousUnrealizedLossPositionFairValue	1949002000	usd
CY2023Q4	us-gaap	Held To Maturity Securities Continuous Unrealized Loss Position Accumulated Loss HeldToMaturitySecuritiesContinuousUnrealizedLossPositionAccumulatedLoss	177042000	usd
CY2024Q3	us-gaap	Available For Sale Debt Securities Amortized Cost Basis AvailableForSaleDebtSecuritiesAmortizedCostBasis	13323346000	usd
CY2024Q3	us-gaap	Available For Sale Securities Debt Securities AvailableForSaleSecuritiesDebtSecurities	13015986000	usd
CY2024Q3	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Gain Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax	117579000	usd
CY2024Q3	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Loss Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax	424939000	usd
CY2023Q4	us-gaap	Available For Sale Debt Securities Amortized Cost Basis AvailableForSaleDebtSecuritiesAmortizedCostBasis	12903305000	usd
CY2023Q4	us-gaap	Available For Sale Securities Debt Securities AvailableForSaleSecuritiesDebtSecurities	12286681000	usd
CY2023Q4	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Gain Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax	52821000	usd
CY2023Q4	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Loss Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax	669445000	usd
CY2024Q3	us-gaap	Available For Sale Debt Securities Amortized Cost Basis AvailableForSaleDebtSecuritiesAmortizedCostBasis	13323346000	usd
CY2024Q3	us-gaap	Available For Sale Securities Debt Securities AvailableForSaleSecuritiesDebtSecurities	13015986000	usd
CY2024Q3	us-gaap	Proceeds From Sale Of Available For Sale Securities Debt ProceedsFromSaleOfAvailableForSaleSecuritiesDebt	101522000	usd
CY2023Q3	us-gaap	Proceeds From Sale Of Available For Sale Securities Debt ProceedsFromSaleOfAvailableForSaleSecuritiesDebt	0	usd
	us-gaap	Proceeds From Sale Of Available For Sale Securities Debt ProceedsFromSaleOfAvailableForSaleSecuritiesDebt	839352000	usd
	us-gaap	Proceeds From Sale Of Available For Sale Securities Debt ProceedsFromSaleOfAvailableForSaleSecuritiesDebt	135489000	usd
CY2024Q3	us-gaap	Debt Securities Available For Sale Realized Gain DebtSecuritiesAvailableForSaleRealizedGain	1802000	usd
CY2023Q3	us-gaap	Debt Securities Available For Sale Realized Gain DebtSecuritiesAvailableForSaleRealizedGain	0	usd
	us-gaap	Debt Securities Available For Sale Realized Gain DebtSecuritiesAvailableForSaleRealizedGain	2257000	usd
	us-gaap	Debt Securities Available For Sale Realized Gain DebtSecuritiesAvailableForSaleRealizedGain	703000	usd
CY2024Q3	us-gaap	Debt Securities Available For Sale Realized Loss Excluding Other Than Temporary Impairment DebtSecuritiesAvailableForSaleRealizedLossExcludingOtherThanTemporaryImpairment	2493000	usd
CY2023Q3	us-gaap	Debt Securities Available For Sale Realized Loss Excluding Other Than Temporary Impairment DebtSecuritiesAvailableForSaleRealizedLossExcludingOtherThanTemporaryImpairment	0	usd
	us-gaap	Debt Securities Available For Sale Realized Loss Excluding Other Than Temporary Impairment DebtSecuritiesAvailableForSaleRealizedLossExcludingOtherThanTemporaryImpairment	48085000	usd
	us-gaap	Debt Securities Available For Sale Realized Loss Excluding Other Than Temporary Impairment DebtSecuritiesAvailableForSaleRealizedLossExcludingOtherThanTemporaryImpairment	3713000	usd
CY2024Q3	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesTax	-163000	usd
CY2023Q3	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesTax	0	usd
	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesTax	-10779000	usd
	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesTax	-708000	usd
CY2024Q3	us-gaap	Debt Securities Available For Sale Unrealized Loss Position Number Of Positions DebtSecuritiesAvailableForSaleUnrealizedLossPositionNumberOfPositions	930
CY2024Q3	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position Less Than12 Months Accumulated Loss DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss	656000	usd
CY2024Q3	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position12 Months Or Longer DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLonger	6790595000	usd
CY2024Q3	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position12 Months Or Longer Accumulated Loss DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss	424283000	usd
CY2024Q3	us-gaap	Debt Securities Available For Sale Unrealized Loss Position DebtSecuritiesAvailableForSaleUnrealizedLossPosition	6960846000	usd
CY2023Q4	us-gaap	Debt Securities Available For Sale Unrealized Loss Position Number Of Positions DebtSecuritiesAvailableForSaleUnrealizedLossPositionNumberOfPositions	1123
CY2023Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position Less Than12 Months DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12Months	1205822000	usd
CY2023Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position Less Than12 Months Accumulated Loss DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss	7969000	usd
CY2023Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position12 Months Or Longer DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLonger	8087455000	usd
CY2023Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position12 Months Or Longer Accumulated Loss DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss	661476000	usd
CY2023Q4	us-gaap	Debt Securities Available For Sale Unrealized Loss Position DebtSecuritiesAvailableForSaleUnrealizedLossPosition	9293277000	usd
CY2023Q4	us-gaap	Debt Securities Available For Sale Unrealized Loss Position Accumulated Loss DebtSecuritiesAvailableForSaleUnrealizedLossPositionAccumulatedLoss	669445000	usd
	bokf	Loans Number Of Days Past Due For Non Risk Graded Loan To Be Placed On Nonaccruing Status LoansNumberOfDaysPastDueForNonRiskGradedLoanToBePlacedOnNonaccruingStatus	P90D
	bokf	Loans Number Of Days After Notification Of Chapter7 Bankruptcy Non Risk Graded Loan Is Placed On Nonaccruing Status LoansNumberOfDaysAfterNotificationOfChapter7BankruptcyNonRiskGradedLoanIsPlacedOnNonaccruingStatus	P60D
	bokf	Minimum No Of Days After Which Past Due Non Risk Graded Loans Are Charged Off MinimumNoOfDaysAfterWhichPastDueNonRiskGradedLoansAreChargedOff	P60D
	bokf	Max No Of Days After Which Past Due Non Risk Graded Loans Are Charged Off MaxNoOfDaysAfterWhichPastDueNonRiskGradedLoansAreChargedOff	P180D
	bokf	Loans Number Of Days After Notification Of Chapter7 Bankruptcy Non Risk Graded Loan Is Charged Off LoansNumberOfDaysAfterNotificationOfChapter7BankruptcyNonRiskGradedLoanIsChargedOff	P60D
CY2024Q3	us-gaap	Loans Receivable With Fixed Rates Of Interest1 LoansReceivableWithFixedRatesOfInterest1	6716671000	usd
CY2024Q3	us-gaap	Loans Receivable With Variable Rates Of Interest1 LoansReceivableWithVariableRatesOfInterest1	17184075000	usd
CY2024Q3	us-gaap	Loans And Leases Receivable Impaired Nonperforming Nonaccrual Of Interest LoansAndLeasesReceivableImpairedNonperformingNonaccrualOfInterest	84315000	usd
CY2024Q3	us-gaap	Loans And Leases Receivable Gross Carrying Amount LoansAndLeasesReceivableGrossCarryingAmount	23985061000	usd
CY2023Q4	us-gaap	Loans Receivable With Fixed Rates Of Interest1 LoansReceivableWithFixedRatesOfInterest1	6633234000	usd
CY2023Q4	us-gaap	Loans Receivable With Variable Rates Of Interest1 LoansReceivableWithVariableRatesOfInterest1	17126265000	usd
CY2023Q4	us-gaap	Loans And Leases Receivable Impaired Nonperforming Nonaccrual Of Interest LoansAndLeasesReceivableImpairedNonperformingNonaccrualOfInterest	145469000	usd
CY2023Q4	us-gaap	Loans And Leases Receivable Gross Carrying Amount LoansAndLeasesReceivableGrossCarryingAmount	23904968000	usd
CY2024Q3	us-gaap	Unused Commitments To Extend Credit UnusedCommitmentsToExtendCredit	14600000000	usd
CY2024Q3	us-gaap	Letters Of Credit Outstanding Amount LettersOfCreditOutstandingAmount	735000000	usd
CY2024Q3	us-gaap	Provision For Loan Losses Expensed ProvisionForLoanLossesExpensed	-3424000	usd
CY2024Q2	us-gaap	Off Balance Sheet Credit Loss Liability OffBalanceSheetCreditLossLiability	42336000	usd
CY2024Q3	us-gaap	Off Balance Sheet Credit Loss Liability Credit Loss Expense Reversal OffBalanceSheetCreditLossLiabilityCreditLossExpenseReversal	5430000	usd
CY2024Q3	us-gaap	Off Balance Sheet Credit Loss Liability OffBalanceSheetCreditLossLiability	47766000	usd
CY2023Q4	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	277123000	usd
	us-gaap	Provision For Loan Losses Expensed ProvisionForLoanLossesExpensed	19684000	usd
	us-gaap	Financing Receivable Allowance For Credit Losses Write Offs FinancingReceivableAllowanceForCreditLossesWriteOffs	17496000	usd
	us-gaap	Financing Receivable Allowance For Credit Losses Recovery FinancingReceivableAllowanceForCreditLossesRecovery	5145000	usd
CY2024Q3	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	284456000	usd
CY2023Q4	us-gaap	Off Balance Sheet Credit Loss Liability OffBalanceSheetCreditLossLiability	48977000	usd
	us-gaap	Off Balance Sheet Credit Loss Liability Credit Loss Expense Reversal OffBalanceSheetCreditLossLiabilityCreditLossExpenseReversal	-1211000	usd
CY2024Q3	us-gaap	Off Balance Sheet Credit Loss Liability OffBalanceSheetCreditLossLiability	47766000	usd
CY2023Q2	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	262714000	usd
CY2023Q3	us-gaap	Provision For Loan Losses Expensed ProvisionForLoanLossesExpensed	15931000	usd
CY2023Q3	us-gaap	Financing Receivable Allowance For Credit Losses Write Offs FinancingReceivableAllowanceForCreditLossesWriteOffs	10593000	usd
CY2023Q3	us-gaap	Financing Receivable Allowance For Credit Losses Recovery FinancingReceivableAllowanceForCreditLossesRecovery	4062000	usd
CY2023Q3	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	272114000	usd
CY2023Q2	us-gaap	Off Balance Sheet Credit Loss Liability OffBalanceSheetCreditLossLiability	59940000	usd
CY2023Q3	us-gaap	Off Balance Sheet Credit Loss Liability Credit Loss Expense Reversal OffBalanceSheetCreditLossLiabilityCreditLossExpenseReversal	-7336000	usd
CY2022Q4	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	235704000	usd
	us-gaap	Provision For Loan Losses Expensed ProvisionForLoanLossesExpensed	50413000	usd
	us-gaap	Financing Receivable Allowance For Credit Losses Write Offs FinancingReceivableAllowanceForCreditLossesWriteOffs	22309000	usd
	us-gaap	Financing Receivable Allowance For Credit Losses Recovery FinancingReceivableAllowanceForCreditLossesRecovery	8306000	usd
CY2023Q3	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	272114000	usd
CY2022Q4	us-gaap	Off Balance Sheet Credit Loss Liability OffBalanceSheetCreditLossLiability	60919000	usd
	us-gaap	Off Balance Sheet Credit Loss Liability Credit Loss Expense Reversal OffBalanceSheetCreditLossLiabilityCreditLossExpenseReversal	-8315000	usd
CY2024Q3	us-gaap	Provision For Loan Lease And Other Losses ProvisionForLoanLeaseAndOtherLosses	2000000.0	usd
CY2024Q3	us-gaap	Financing Receivable Collectively Evaluated For Impairment FinancingReceivableCollectivelyEvaluatedForImpairment	23900746000	usd
CY2024Q3	us-gaap	Financing Receivable Allowance For Credit Losses Collectively Evaluated For Impairment FinancingReceivableAllowanceForCreditLossesCollectivelyEvaluatedForImpairment	281523000	usd
CY2024Q3	us-gaap	Financing Receivable Individually Evaluated For Impairment FinancingReceivableIndividuallyEvaluatedForImpairment	84315000	usd
CY2024Q3	us-gaap	Investment Proportional Amortization Method Elected Statement Of Financial Position Extensible Enumeration InvestmentProportionalAmortizationMethodElectedStatementOfFinancialPositionExtensibleEnumeration	http://fasb.org/us-gaap/2024#OtherAssets
	dei	Entity Address Postal Zip Code EntityAddressPostalZipCode	74192
	dei	City Area Code CityAreaCode	918
	dei	Local Phone Number LocalPhoneNumber	588-6000
	dei	Security12b Title Security12bTitle	Common Stock, par value $0.00006 per share
	dei	Trading Symbol TradingSymbol	BOKF
	dei	Security Exchange Name SecurityExchangeName	NASDAQ
	dei	Entity Current Reporting Status EntityCurrentReportingStatus	Yes
CY2023Q3	us-gaap	Interest And Fee Income Loans And Leases Held In Portfolio InterestAndFeeIncomeLoansAndLeasesHeldInPortfolio	425662000	usd
	us-gaap	Interest And Fee Income Loans And Leases Held In Portfolio InterestAndFeeIncomeLoansAndLeasesHeldInPortfolio	1339570000	usd
	us-gaap	Interest Income Debt Securities Trading Operating InterestIncomeDebtSecuritiesTradingOperating	219457000	usd
CY2023Q3	bokf	Interest Revenue On Fair Value Option Securities InterestRevenueOnFairValueOptionSecurities	552000	usd
	bokf	Interest Revenue On Fair Value Option Securities InterestRevenueOnFairValueOptionSecurities	578000	usd
	bokf	Interest Revenue On Fair Value Option Securities InterestRevenueOnFairValueOptionSecurities	7561000	usd
CY2024Q3	us-gaap	Interest And Dividend Income Securities Other InterestAndDividendIncomeSecuritiesOther	8426000	usd
CY2023Q3	us-gaap	Interest And Dividend Income Securities Other InterestAndDividendIncomeSecuritiesOther	8776000	usd
	us-gaap	Interest And Dividend Income Securities Other InterestAndDividendIncomeSecuritiesOther	26476000	usd
	us-gaap	Interest And Dividend Income Securities Other InterestAndDividendIncomeSecuritiesOther	21013000	usd
CY2024Q3	us-gaap	Interest Expense Operating InterestExpenseOperating	372191000	usd
CY2023Q3	us-gaap	Interest Expense Operating InterestExpenseOperating	316148000	usd
	us-gaap	Interest Expense Operating InterestExpenseOperating	1099627000	usd
	us-gaap	Interest Expense Operating InterestExpenseOperating	728635000	usd
	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	975505000	usd
CY2024Q3	us-gaap	Provision For Loan Lease And Other Losses ProvisionForLoanLeaseAndOtherLosses	2000000	usd
CY2023Q3	us-gaap	Provision For Loan Lease And Other Losses ProvisionForLoanLeaseAndOtherLosses	7000000	usd
	us-gaap	Provision For Loan Lease And Other Losses ProvisionForLoanLeaseAndOtherLosses	18000000	usd
	us-gaap	Provision For Loan Lease And Other Losses ProvisionForLoanLeaseAndOtherLosses	40000000	usd
CY2023Q3	us-gaap	Interest Income Expense After Provision For Loan Loss InterestIncomeExpenseAfterProvisionForLoanLoss	293896000	usd
	bokf	Federal Deposit Insurance Corporation Fdic Special Assessment FederalDepositInsuranceCorporationFDICSpecialAssessment	6207000	usd
	bokf	Federal Deposit Insurance Corporation Fdic Special Assessment FederalDepositInsuranceCorporationFDICSpecialAssessment	0	usd
CY2024Q3	us-gaap	Communications And Information Technology CommunicationsAndInformationTechnology	47554000	usd
CY2023Q3	us-gaap	Communications And Information Technology CommunicationsAndInformationTechnology	45672000	usd
	us-gaap	Communications And Information Technology CommunicationsAndInformationTechnology	139249000	usd
	us-gaap	Communications And Information Technology CommunicationsAndInformationTechnology	135781000	usd
CY2024Q3	us-gaap	Supplies And Postage Expense SuppliesAndPostageExpense	3594000	usd
CY2024Q3	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	2856000	usd
CY2023Q3	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	3474000	usd
	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	8757000	usd
	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	10339000	usd
CY2023Q3	us-gaap	Profit Loss ProfitLoss	134479000	usd
	us-gaap	Profit Loss ProfitLoss	387399000	usd
CY2023Q3	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	-16000	usd
	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	-16000	usd
	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	440000	usd
CY2024Q3	us-gaap	Net Income Loss NetIncomeLoss	139999000	usd
CY2023Q3	us-gaap	Net Income Loss NetIncomeLoss	134495000	usd
	us-gaap	Net Income Loss NetIncomeLoss	387415000	usd
	us-gaap	Net Income Loss NetIncomeLoss	448171000	usd
CY2024Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	2.18
CY2023Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	2.04
	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	6.01
	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	6.74
CY2024Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	2.18
CY2023Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	2.04
CY2024Q3	us-gaap	Other Comprehensive Income Loss Tax OtherComprehensiveIncomeLossTax	83094000	usd
CY2023Q3	us-gaap	Other Comprehensive Income Loss Tax OtherComprehensiveIncomeLossTax	-28389000	usd
	us-gaap	Other Comprehensive Income Loss Tax OtherComprehensiveIncomeLossTax	81094000	usd
CY2024Q3	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	410186000	usd
CY2023Q3	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	42166000	usd
	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	651210000	usd
CY2023Q4	us-gaap	Goodwill Goodwill	1044749000	usd
CY2023Q4	us-gaap	Intangible Assets Net Excluding Goodwill IntangibleAssetsNetExcludingGoodwill	59979000	usd
CY2024Q3	us-gaap	Servicing Asset At Fair Value Amount ServicingAssetAtFairValueAmount	315920000	usd
CY2023Q4	us-gaap	Bank Owned Life Insurance BankOwnedLifeInsurance	409548000	usd
CY2024Q3	us-gaap	Receivables From Brokers Dealers And Clearing Organizations ReceivablesFromBrokersDealersAndClearingOrganizations	98526000	usd
CY2023Q4	us-gaap	Receivables From Brokers Dealers And Clearing Organizations ReceivablesFromBrokersDealersAndClearingOrganizations	391910000	usd
CY2023Q4	us-gaap	Other Assets OtherAssets	1070282000	usd
CY2024Q3	us-gaap	Assets Assets	50081985000	usd
CY2023Q4	us-gaap	Assets Assets	49824830000	usd
CY2024Q3	us-gaap	Noninterest Bearing Deposit Liabilities Domestic NoninterestBearingDepositLiabilitiesDomestic	8260244000	usd
CY2023Q4	us-gaap	Noninterest Bearing Deposit Liabilities Domestic NoninterestBearingDepositLiabilitiesDomestic	9196493000	usd
CY2024Q3	us-gaap	Demand Deposit Accounts DemandDepositAccounts	24312211000	usd
CY2024Q3	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	76814108	shares
CY2024Q3	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	76814108	shares
CY2023Q4	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	76593292	shares
CY2023Q4	us-gaap	Common Stock Value CommonStockValue	5000	usd
CY2024Q3	us-gaap	Additional Paid In Capital Common Stock AdditionalPaidInCapitalCommonStock	1425124000	usd
CY2023Q4	us-gaap	Additional Paid In Capital Common Stock AdditionalPaidInCapitalCommonStock	1406745000	usd
CY2024Q3	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	5492802000	usd
CY2023Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	5211512000	usd
CY2024Q3	us-gaap	Treasury Stock Common Shares TreasuryStockCommonShares	12695691	shares
CY2023Q4	us-gaap	Treasury Stock Common Shares TreasuryStockCommonShares	11626115	shares
CY2024Q3	us-gaap	Treasury Stock Value TreasuryStockValue	970199000	usd
CY2023Q4	us-gaap	Treasury Stock Value TreasuryStockValue	876720000	usd
CY2024Q3	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-335289000	usd
CY2023Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-599100000	usd
CY2024Q3	us-gaap	Stockholders Equity StockholdersEquity	5612443000	usd
CY2023Q4	us-gaap	Stockholders Equity StockholdersEquity	5142442000	usd
CY2024Q3	us-gaap	Minority Interest MinorityInterest	2755000	usd
CY2023Q4	us-gaap	Minority Interest MinorityInterest	2977000	usd
CY2023Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	5145419000	usd
CY2024Q3	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	50081985000	usd
CY2023Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	49824830000	usd
CY2024Q2	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	5231970000	usd
CY2024Q3	us-gaap	Profit Loss ProfitLoss	139973000	usd
CY2024Q3	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	270213000	usd
CY2024Q3	us-gaap	Treasury Stock Value Acquired Par Value Method TreasuryStockValueAcquiredParValueMethod	0	usd
CY2024Q3	us-gaap	Adjustments Related To Tax Withholding For Share Based Compensation AdjustmentsRelatedToTaxWithholdingForShareBasedCompensation	70000	usd
CY2024Q3	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	8317000	usd
CY2023Q3	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	35631000	usd
CY2023Q3	us-gaap	Minority Interest Decrease From Distributions To Noncontrolling Interest Holders MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders	338000	usd
CY2023Q3	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	4817208000	usd
CY2022Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	4687358000	usd
	us-gaap	Profit Loss ProfitLoss	448611000	usd
	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-92030000	usd
	us-gaap	Treasury Stock Value Acquired Par Value Method TreasuryStockValueAcquiredParValueMethod	126611000	usd
	us-gaap	Adjustments Related To Tax Withholding For Share Based Compensation AdjustmentsRelatedToTaxWithholdingForShareBasedCompensation	4695000	usd
	bokf	Net Loss Gain On Mortgage Loans Held For Sale NetLossGainOnMortgageLoansHeldForSale	6508000	usd
	bokf	Net Loss Gain On Mortgage Loans Held For Sale NetLossGainOnMortgageLoansHeldForSale	-4306000	usd
	us-gaap	Increase Decrease In Trading Securities IncreaseDecreaseInTradingSecurities	7477000	usd
	us-gaap	Increase Decrease In Receivables IncreaseDecreaseInReceivables	-219583000	usd
	us-gaap	Increase Decrease In Receivables IncreaseDecreaseInReceivables	-14079000	usd
	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	-97074000	usd
	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	-74107000	usd
	us-gaap	Increase Decrease In Other Operating Liabilities IncreaseDecreaseInOtherOperatingLiabilities	211240000	usd
	us-gaap	Increase Decrease In Other Operating Liabilities IncreaseDecreaseInOtherOperatingLiabilities	-58926000	usd
	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	889448000	usd
	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	527942000	usd
	us-gaap	Proceeds From Maturities Prepayments And Calls Of Held To Maturity Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfHeldToMaturitySecurities	172086000	usd
	us-gaap	Proceeds From Maturities Prepayments And Calls Of Held To Maturity Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfHeldToMaturitySecurities	214869000	usd
	us-gaap	Proceeds From Maturities Prepayments And Calls Of Available For Sale Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities	1531719000	usd
	us-gaap	Proceeds From Maturities Prepayments And Calls Of Available For Sale Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities	1134602000	usd
	us-gaap	Payments To Acquire Held To Maturity Securities PaymentsToAcquireHeldToMaturitySecurities	0	usd
	us-gaap	Payments To Acquire Held To Maturity Securities PaymentsToAcquireHeldToMaturitySecurities	2504000	usd
	us-gaap	Payments To Acquire Available For Sale Securities Debt PaymentsToAcquireAvailableForSaleSecuritiesDebt	2807115000	usd
	us-gaap	Payments To Acquire Available For Sale Securities Debt PaymentsToAcquireAvailableForSaleSecuritiesDebt	1843827000	usd
	us-gaap	Proceeds From Sale Of Available For Sale Securities Debt ProceedsFromSaleOfAvailableForSaleSecuritiesDebt	839352000	usd
	us-gaap	Proceeds From Sale Of Available For Sale Securities Debt ProceedsFromSaleOfAvailableForSaleSecuritiesDebt	135489000	usd
	bokf	Change In Amount Receivable On Unsettled Security Transactions ChangeInAmountReceivableOnUnsettledSecurityTransactions	91132000	usd
	bokf	Change In Amount Receivable On Unsettled Security Transactions ChangeInAmountReceivableOnUnsettledSecurityTransactions	7471000	usd
	us-gaap	Payments For Proceeds From Loans And Leases PaymentsForProceedsFromLoansAndLeases	79038000	usd
	us-gaap	Proceeds From Sale Of Restricted Investments ProceedsFromSaleOfRestrictedInvestments	33764000	usd
	bokf	Increase In Us Government Guaranteed Loans Eligible For Repurchase IncreaseInUSGovernmentGuaranteedLoansEligibleForRepurchase	12599000	usd
	bokf	Increase In Us Government Guaranteed Loans Eligible For Repurchase IncreaseInUSGovernmentGuaranteedLoansEligibleForRepurchase	10679000	usd
	bokf	Conveyance Of Other Real Estate Owned Guaranteed By Us Govt ConveyanceOfOtherRealEstateOwnedGuaranteedByUsGovt	2912000	usd
	bokf	Conveyance Of Other Real Estate Owned Guaranteed By Us Govt ConveyanceOfOtherRealEstateOwnedGuaranteedByUsGovt	4007000	usd
	us-gaap	Right Of Use Asset Obtained In Exchange For Operating Lease Liability RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability	20100000	usd
	us-gaap	Right Of Use Asset Obtained In Exchange For Operating Lease Liability RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability	65241000	usd
	us-gaap	Prior Period Reclassification Adjustment Description PriorPeriodReclassificationAdjustmentDescription	<div><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Certain reclassifications have been made to conform to the current period presentation.</span></div>
CY2024Q3	us-gaap	Trading Securities Debt TradingSecuritiesDebt	5139725000	usd
CY2024Q3	bokf	Trading Securities Net Unrealized Gains Losses TradingSecuritiesNetUnrealizedGainsLosses	40184000	usd
CY2023Q4	us-gaap	Trading Securities Debt TradingSecuritiesDebt	5193505000	usd
CY2023Q4	bokf	Trading Securities Net Unrealized Gains Losses TradingSecuritiesNetUnrealizedGainsLosses	98635000	usd
CY2024Q3	bokf	Debt Securities Heldtomaturitygross DebtSecuritiesHeldtomaturitygross	2199059000	usd
CY2024Q3	bokf	Debt Securities Held To Maturity Carrying Value DebtSecuritiesHeldToMaturityCarryingValue	2070099000	usd
CY2024Q3	us-gaap	Held To Maturity Securities Fair Value HeldToMaturitySecuritiesFairValue	1937907000	usd
CY2024Q3	us-gaap	Held To Maturity Securities Accumulated Unrecognized Holding Gain HeldToMaturitySecuritiesAccumulatedUnrecognizedHoldingGain	3769000	usd
CY2023Q4	us-gaap	Held To Maturity Securities Accumulated Unrecognized Holding Loss HeldToMaturitySecuritiesAccumulatedUnrecognizedHoldingLoss	177042000	usd
CY2023Q4	us-gaap	Debt Securities Held To Maturity Allowance For Credit Loss DebtSecuritiesHeldToMaturityAllowanceForCreditLoss	336000	usd
CY2023Q4	us-gaap	Debt Securities Held To Maturity Amortized Cost After Allowance For Credit Loss DebtSecuritiesHeldToMaturityAmortizedCostAfterAllowanceForCreditLoss	2408754000	usd
CY2023Q4	bokf	Debt Securities Held To Maturity Carrying Value After Allowance For Credit Loss DebtSecuritiesHeldToMaturityCarryingValueAfterAllowanceForCreditLoss	2244153000	usd
CY2023Q4	us-gaap	Held To Maturity Securities Fair Value HeldToMaturitySecuritiesFairValue	2072586000	usd
CY2023Q4	us-gaap	Held To Maturity Securities Accumulated Unrecognized Holding Gain HeldToMaturitySecuritiesAccumulatedUnrecognizedHoldingGain	5139000	usd
CY2023Q4	us-gaap	Held To Maturity Securities Accumulated Unrecognized Holding Loss HeldToMaturitySecuritiesAccumulatedUnrecognizedHoldingLoss	177042000	usd
CY2023	bokf	Debt Securities Net Unrealized Loss Remaining In Aoci Included In Carrying Value For Afs Securities Transferred To Investment Securities DebtSecuritiesNetUnrealizedLossRemainingInAOCIIncludedInCarryingValueForAFSSecuritiesTransferredToInvestmentSecurities	-165000000	usd
CY2024Q3	bokf	Debt Securities Held To Maturity Carrying Value DebtSecuritiesHeldToMaturityCarryingValue	2070099000	usd
CY2024Q3	us-gaap	Held To Maturity Securities Fair Value HeldToMaturitySecuritiesFairValue	1937907000	usd
CY2024Q3	us-gaap	Held To Maturity Securities In Unrealized Loss Positions Qualitative Disclosure Number Of Positions HeldToMaturitySecuritiesInUnrealizedLossPositionsQualitativeDisclosureNumberOfPositions	134
CY2024Q3	us-gaap	Held To Maturity Securities Continuous Unrealized Loss Position Less Than Twelve Months Fair Value HeldToMaturitySecuritiesContinuousUnrealizedLossPositionLessThanTwelveMonthsFairValue	2826000	usd
CY2024Q3	us-gaap	Held To Maturity Securities Continuous Unrealized Loss Position Less Than12 Months Accumulated Loss HeldToMaturitySecuritiesContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss	8000	usd
CY2024Q3	us-gaap	Held To Maturity Securities Continuous Unrealized Loss Position Twelve Months Or Longer Fair Value HeldToMaturitySecuritiesContinuousUnrealizedLossPositionTwelveMonthsOrLongerFairValue	1830387000	usd
CY2024Q3	us-gaap	Held To Maturity Securities Continuous Unrealized Loss Position12 Months Or Longer Accumulated Loss HeldToMaturitySecuritiesContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss	135953000	usd
CY2024Q3	us-gaap	Held To Maturity Securities Continuous Unrealized Loss Position Fair Value HeldToMaturitySecuritiesContinuousUnrealizedLossPositionFairValue	1833213000	usd
CY2024Q3	us-gaap	Held To Maturity Securities Continuous Unrealized Loss Position Accumulated Loss HeldToMaturitySecuritiesContinuousUnrealizedLossPositionAccumulatedLoss	135961000	usd
CY2023Q4	us-gaap	Held To Maturity Securities In Unrealized Loss Positions Qualitative Disclosure Number Of Positions HeldToMaturitySecuritiesInUnrealizedLossPositionsQualitativeDisclosureNumberOfPositions	134
CY2023Q4	us-gaap	Held To Maturity Securities Continuous Unrealized Loss Position Less Than Twelve Months Fair Value HeldToMaturitySecuritiesContinuousUnrealizedLossPositionLessThanTwelveMonthsFairValue	1931000	usd
CY2023Q4	us-gaap	Held To Maturity Securities Continuous Unrealized Loss Position Less Than12 Months Accumulated Loss HeldToMaturitySecuritiesContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss	5000	usd
CY2024Q3	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position Less Than12 Months DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12Months	170251000	usd
CY2024Q3	us-gaap	Debt Securities Available For Sale Unrealized Loss Position Accumulated Loss DebtSecuritiesAvailableForSaleUnrealizedLossPositionAccumulatedLoss	424939000	usd
CY2024Q2	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	287826000	usd
CY2024Q3	us-gaap	Financing Receivable Allowance For Credit Losses Write Offs FinancingReceivableAllowanceForCreditLossesWriteOffs	2496000	usd
CY2024Q3	us-gaap	Financing Receivable Allowance For Credit Losses Recovery FinancingReceivableAllowanceForCreditLossesRecovery	2550000	usd
CY2024Q3	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	284456000	usd
CY2024Q3	us-gaap	Financing Receivable Allowance For Credit Losses Individually Evaluated For Impairment1 FinancingReceivableAllowanceForCreditLossesIndividuallyEvaluatedForImpairment1	2933000	usd
CY2024Q3	us-gaap	Loans And Leases Receivable Gross Carrying Amount LoansAndLeasesReceivableGrossCarryingAmount	23985061000	usd
CY2024Q3	us-gaap	Loans And Leases Receivable Allowance LoansAndLeasesReceivableAllowance	284456000	usd
CY2023Q4	us-gaap	Financing Receivable Collectively Evaluated For Impairment FinancingReceivableCollectivelyEvaluatedForImpairment	23759499000	usd
CY2023Q4	us-gaap	Financing Receivable Allowance For Credit Losses Collectively Evaluated For Impairment FinancingReceivableAllowanceForCreditLossesCollectivelyEvaluatedForImpairment	274431000	usd
CY2023Q4	us-gaap	Financing Receivable Individually Evaluated For Impairment FinancingReceivableIndividuallyEvaluatedForImpairment	145469000	usd
CY2023Q4	us-gaap	Financing Receivable Allowance For Credit Losses Individually Evaluated For Impairment1 FinancingReceivableAllowanceForCreditLossesIndividuallyEvaluatedForImpairment1	2692000	usd
CY2023Q4	us-gaap	Loans And Leases Receivable Gross Carrying Amount LoansAndLeasesReceivableGrossCarryingAmount	23904968000	usd
CY2023Q4	us-gaap	Loans And Leases Receivable Allowance LoansAndLeasesReceivableAllowance	277123000	usd
CY2024Q3	us-gaap	Financing Receivable Originated In Current Fiscal Year FinancingReceivableOriginatedInCurrentFiscalYear	2443279000	usd
CY2024Q3	us-gaap	Financing Receivable Originated In Fiscal Year Before Latest Fiscal Year FinancingReceivableOriginatedInFiscalYearBeforeLatestFiscalYear	3069840000	usd
CY2024Q3	us-gaap	Financing Receivable Originated Two Years Before Latest Fiscal Year FinancingReceivableOriginatedTwoYearsBeforeLatestFiscalYear	4497611000	usd
CY2024Q3	us-gaap	Financing Receivable Originated Three Years Before Latest Fiscal Year FinancingReceivableOriginatedThreeYearsBeforeLatestFiscalYear	2515930000	usd
CY2024Q3	us-gaap	Financing Receivable Originated Four Years Before Latest Fiscal Year FinancingReceivableOriginatedFourYearsBeforeLatestFiscalYear	1486183000	usd
CY2024Q3	us-gaap	Financing Receivable Originated Five Or More Years Before Latest Fiscal Year FinancingReceivableOriginatedFiveOrMoreYearsBeforeLatestFiscalYear	3449605000	usd
CY2024Q3	us-gaap	Financing Receivable Revolving FinancingReceivableRevolving	6497659000	usd
CY2024Q3	us-gaap	Financing Receivable Revolving Converted To Term Loan FinancingReceivableRevolvingConvertedToTermLoan	24954000	usd
CY2024Q3	us-gaap	Notes Receivable Gross NotesReceivableGross	23985061000	usd
CY2023Q4	us-gaap	Financing Receivable Originated In Current Fiscal Year FinancingReceivableOriginatedInCurrentFiscalYear	3743425000	usd
CY2023Q4	us-gaap	Financing Receivable Originated In Fiscal Year Before Latest Fiscal Year FinancingReceivableOriginatedInFiscalYearBeforeLatestFiscalYear	4522989000	usd
CY2023Q4	us-gaap	Financing Receivable Originated Two Years Before Latest Fiscal Year FinancingReceivableOriginatedTwoYearsBeforeLatestFiscalYear	2982784000	usd
CY2023Q4	us-gaap	Financing Receivable Originated Three Years Before Latest Fiscal Year FinancingReceivableOriginatedThreeYearsBeforeLatestFiscalYear	1756064000	usd
CY2023Q4	us-gaap	Financing Receivable Originated Four Years Before Latest Fiscal Year FinancingReceivableOriginatedFourYearsBeforeLatestFiscalYear	1234871000	usd
CY2023Q4	us-gaap	Financing Receivable Originated Five Or More Years Before Latest Fiscal Year FinancingReceivableOriginatedFiveOrMoreYearsBeforeLatestFiscalYear	3094093000	usd
CY2023Q4	us-gaap	Financing Receivable Revolving FinancingReceivableRevolving	6543149000	usd
CY2023Q4	us-gaap	Financing Receivable Revolving Converted To Term Loan FinancingReceivableRevolvingConvertedToTermLoan	27593000	usd
CY2023Q4	us-gaap	Notes Receivable Gross NotesReceivableGross	23904968000	usd
CY2024Q3	us-gaap	Financing Receivable Recorded Investment Nonaccrual Status FinancingReceivableRecordedInvestmentNonaccrualStatus	84315000	usd
CY2024Q3	us-gaap	Financing Receivable Nonaccrual No Allowance FinancingReceivableNonaccrualNoAllowance	66649000	usd
CY2024Q3	bokf	Financing Receivable Nonaccrual With Allowance FinancingReceivableNonaccrualWithAllowance	17666000	usd
CY2024Q3	bokf	Financing Receivable Nonaccrual Related Allowance FinancingReceivableNonaccrualRelatedAllowance	2933000	usd
CY2023Q4	us-gaap	Financing Receivable Recorded Investment Nonaccrual Status FinancingReceivableRecordedInvestmentNonaccrualStatus	145469000	usd
CY2023Q4	us-gaap	Financing Receivable Nonaccrual No Allowance FinancingReceivableNonaccrualNoAllowance	102380000	usd
CY2023Q4	bokf	Financing Receivable Nonaccrual With Allowance FinancingReceivableNonaccrualWithAllowance	43089000	usd
CY2023Q4	bokf	Financing Receivable Nonaccrual Related Allowance FinancingReceivableNonaccrualRelatedAllowance	2692000	usd
	us-gaap	Financing Receivable Modifications Post Modification Recorded Investment2 FinancingReceivableModificationsPostModificationRecordedInvestment2	147000000	usd
	us-gaap	Financing Receivable Modifications Subsequent Default Recorded Investment1 FinancingReceivableModificationsSubsequentDefaultRecordedInvestment1	32000000	usd
	bokf	Number Of Days Past Due Following Modification To Be Considered A Payment Default NumberOfDaysPastDueFollowingModificationToBeConsideredAPaymentDefault	P30D
	us-gaap	Financing Receivable Modifications Post Modification Recorded Investment2 FinancingReceivableModificationsPostModificationRecordedInvestment2	136000000	usd
CY2024Q3	us-gaap	Notes Receivable Gross NotesReceivableGross	23985061000	usd
CY2024Q3	us-gaap	Financing Receivable Recorded Investment90 Days Past Due And Still Accruing FinancingReceivableRecordedInvestment90DaysPastDueAndStillAccruing	45740000	usd
CY2023Q4	us-gaap	Notes Receivable Gross NotesReceivableGross	23904968000	usd
CY2023Q4	us-gaap	Financing Receivable Recorded Investment90 Days Past Due And Still Accruing FinancingReceivableRecordedInvestment90DaysPastDueAndStillAccruing	48371000	usd
CY2024Q3	bokf	Residential Mortgage Loans Held For Sale Unpaid Principal Balance Gross ResidentialMortgageLoansHeldForSaleUnpaidPrincipalBalanceGross	94473000	usd
CY2024Q3	bokf	Fair Valueof Residential Mortgage Loans Heldfor Sale FairValueofResidentialMortgageLoansHeldforSale	94067000	usd
CY2023Q4	bokf	Residential Mortgage Loans Held For Sale Unpaid Principal Balance Gross ResidentialMortgageLoansHeldForSaleUnpaidPrincipalBalanceGross	56922000	usd
CY2023Q4	bokf	Fair Valueof Residential Mortgage Loans Heldfor Sale FairValueofResidentialMortgageLoansHeldforSale	56457000	usd
CY2024Q3	us-gaap	Loans Receivable Held For Sale Net Not Part Of Disposal Group LoansReceivableHeldForSaleNetNotPartOfDisposalGroup	95494000	usd
CY2023Q4	us-gaap	Loans Receivable Held For Sale Net Not Part Of Disposal Group LoansReceivableHeldForSaleNetNotPartOfDisposalGroup	56935000	usd
CY2024Q3	bokf	Residential Mortgage Loans Held For Sale Nonperforming ResidentialMortgageLoansHeldForSaleNonperforming	0	usd
CY2023Q4	bokf	Residential Mortgage Loans Held For Sale Nonperforming ResidentialMortgageLoansHeldForSaleNonperforming	0	usd
	bokf	Number Of Days For Past Due Residential Mortgage Loans Heldfor Sale NumberOfDaysForPastDueResidentialMortgageLoansHeldforSale	P90D
CY2023	bokf	Number Of Days For Past Due Residential Mortgage Loans Heldfor Sale NumberOfDaysForPastDueResidentialMortgageLoansHeldforSale	P90D
	bokf	Credit Losses Recognized On Residential Mortgage Loans Held For Sale CreditLossesRecognizedOnResidentialMortgageLoansHeldForSale	0	usd
	bokf	Credit Losses Recognized On Residential Mortgage Loans Held For Sale CreditLossesRecognizedOnResidentialMortgageLoansHeldForSale	0	usd
CY2024Q3	us-gaap	Gain Loss On Sale Of Mortgage Loans GainLossOnSaleOfMortgageLoans	2085000	usd
CY2023Q3	us-gaap	Gain Loss On Sale Of Mortgage Loans GainLossOnSaleOfMortgageLoans	-1631000	usd
	us-gaap	Gain Loss On Sale Of Mortgage Loans GainLossOnSaleOfMortgageLoans	6449000	usd
	us-gaap	Gain Loss On Sale Of Mortgage Loans GainLossOnSaleOfMortgageLoans	-3658000	usd
CY2024Q3	bokf	Net Change In Unrealized Gain Loss On Mortgage Loans Held For Sale NetChangeInUnrealizedGainLossOnMortgageLoansHeldForSale	-190000	usd
CY2023Q3	bokf	Net Change In Unrealized Gain Loss On Mortgage Loans Held For Sale NetChangeInUnrealizedGainLossOnMortgageLoansHeldForSale	-522000	usd
	bokf	Net Change In Unrealized Gain Loss On Mortgage Loans Held For Sale NetChangeInUnrealizedGainLossOnMortgageLoansHeldForSale	59000	usd
	bokf	Net Change In Unrealized Gain Loss On Mortgage Loans Held For Sale NetChangeInUnrealizedGainLossOnMortgageLoansHeldForSale	-648000	usd
CY2024Q3	bokf	Changeinfairvalueofmortgageloancommitments Changeinfairvalueofmortgageloancommitments	13000	usd
CY2023Q3	bokf	Changeinfairvalueofmortgageloancommitments Changeinfairvalueofmortgageloancommitments	-288000	usd
	bokf	Changeinfairvalueofmortgageloancommitments Changeinfairvalueofmortgageloancommitments	579000	usd
	bokf	Changeinfairvalueofmortgageloancommitments Changeinfairvalueofmortgageloancommitments	487000	usd
CY2024Q3	bokf	Changeinthefairvalueofforwardsalescommitments Changeinthefairvalueofforwardsalescommitments	-345000	usd
CY2023Q3	bokf	Changeinthefairvalueofforwardsalescommitments Changeinthefairvalueofforwardsalescommitments	554000	usd
	bokf	Changeinthefairvalueofforwardsalescommitments Changeinthefairvalueofforwardsalescommitments	370000	usd
	bokf	Changeinthefairvalueofforwardsalescommitments Changeinthefairvalueofforwardsalescommitments	1015000	usd
CY2024Q3	bokf	Mortgage Production Revenue MortgageProductionRevenue	1563000	usd
CY2023Q3	bokf	Mortgage Production Revenue MortgageProductionRevenue	-1887000	usd
	bokf	Mortgage Production Revenue MortgageProductionRevenue	7457000	usd
	bokf	Mortgage Production Revenue MortgageProductionRevenue	-2804000	usd
CY2024Q3	bokf	Mortgage Servicing Fees MortgageServicingFees	16809000	usd
CY2023Q3	bokf	Mortgage Servicing Fees MortgageServicingFees	15243000	usd
	bokf	Mortgage Servicing Fees MortgageServicingFees	48510000	usd
	bokf	Mortgage Servicing Fees MortgageServicingFees	45668000	usd
CY2024Q3	bokf	Mortgage Banking Revenue MortgageBankingRevenue	18372000	usd
CY2023Q3	bokf	Mortgage Banking Revenue MortgageBankingRevenue	13356000	usd
	bokf	Mortgage Banking Revenue MortgageBankingRevenue	55967000	usd
	bokf	Mortgage Banking Revenue MortgageBankingRevenue	42864000	usd
CY2024Q3	bokf	Residential Mortgage Loans Serviced Number Of Loans ResidentialMortgageLoansServicedNumberOfLoans	125104
CY2023Q4	bokf	Residential Mortgage Loans Serviced Number Of Loans ResidentialMortgageLoansServicedNumberOfLoans	115967
CY2024Q3	bokf	Residential Mortgage Loans Serviced Outstanding Principal ResidentialMortgageLoansServicedOutstandingPrincipal	22084578000	usd
CY2023Q4	bokf	Residential Mortgage Loans Serviced Outstanding Principal ResidentialMortgageLoansServicedOutstandingPrincipal	20382192000	usd
CY2024Q3	bokf	Weighted Average Interest Rateof Loans Servicedfor Others WeightedAverageInterestRateofLoansServicedforOthers	0.0370
CY2023Q4	bokf	Weighted Average Interest Rateof Loans Servicedfor Others WeightedAverageInterestRateofLoansServicedforOthers	0.0364
	bokf	Residential Mortgage Loans Serviced Weighted Average Remaining Term ResidentialMortgageLoansServicedWeightedAverageRemainingTerm	P277M
CY2023	bokf	Residential Mortgage Loans Serviced Weighted Average Remaining Term ResidentialMortgageLoansServicedWeightedAverageRemainingTerm	P280M
CY2024Q2	us-gaap	Servicing Asset At Fair Value Amount ServicingAssetAtFairValueAmount	333246000	usd
CY2023Q2	us-gaap	Servicing Asset At Fair Value Amount ServicingAssetAtFairValueAmount	304722000	usd
CY2023Q4	us-gaap	Servicing Asset At Fair Value Amount ServicingAssetAtFairValueAmount	293884000	usd
CY2022Q4	us-gaap	Servicing Asset At Fair Value Amount ServicingAssetAtFairValueAmount	277608000	usd
CY2024Q3	us-gaap	Servicing Asset At Fair Value Additions ServicingAssetAtFairValueAdditions	3842000	usd
CY2023Q3	us-gaap	Servicing Asset At Fair Value Additions ServicingAssetAtFairValueAdditions	3154000	usd
	us-gaap	Servicing Asset At Fair Value Additions ServicingAssetAtFairValueAdditions	10812000	usd
	us-gaap	Servicing Asset At Fair Value Additions ServicingAssetAtFairValueAdditions	9757000	usd
CY2024Q3	bokf	Servicing Asset At Fair Value Acquisitions ServicingAssetAtFairValueAcquisitions	3334000	usd
CY2023Q3	bokf	Servicing Asset At Fair Value Acquisitions ServicingAssetAtFairValueAcquisitions	2669000	usd
	bokf	Servicing Asset At Fair Value Acquisitions ServicingAssetAtFairValueAcquisitions	34755000	usd
	bokf	Servicing Asset At Fair Value Acquisitions ServicingAssetAtFairValueAcquisitions	33807000	usd
CY2024Q3	bokf	Change In Fair Value Due To Loan Runoff ChangeInFairValueDueToLoanRunoff	-8049000	usd
CY2023Q3	bokf	Change In Fair Value Due To Loan Runoff ChangeInFairValueDueToLoanRunoff	-7202000	usd
	bokf	Change In Fair Value Due To Loan Runoff ChangeInFairValueDueToLoanRunoff	-21508000	usd
	bokf	Change In Fair Value Due To Loan Runoff ChangeInFairValueDueToLoanRunoff	-21031000	usd
CY2024Q3	us-gaap	Asset At Fair Value Changes In Fair Value Resulting From Changes In Assumptions AssetAtFairValueChangesInFairValueResultingFromChangesInAssumptions	-16453000	usd
CY2023Q3	us-gaap	Asset At Fair Value Changes In Fair Value Resulting From Changes In Assumptions AssetAtFairValueChangesInFairValueResultingFromChangesInAssumptions	8039000	usd
	us-gaap	Asset At Fair Value Changes In Fair Value Resulting From Changes In Assumptions AssetAtFairValueChangesInFairValueResultingFromChangesInAssumptions	-2023000	usd
	us-gaap	Asset At Fair Value Changes In Fair Value Resulting From Changes In Assumptions AssetAtFairValueChangesInFairValueResultingFromChangesInAssumptions	11241000	usd
CY2024Q3	us-gaap	Servicing Asset At Fair Value Amount ServicingAssetAtFairValueAmount	315920000	usd
CY2023Q3	us-gaap	Servicing Asset At Fair Value Amount ServicingAssetAtFairValueAmount	311382000	usd
CY2024Q3	us-gaap	Servicing Asset At Fair Value Amount ServicingAssetAtFairValueAmount	315920000	usd
	us-gaap	Servicing Assets And Servicing Liabilities At Fair Value Assumptions Used To Estimate Fair Value Discount Rate ServicingAssetsAndServicingLiabilitiesAtFairValueAssumptionsUsedToEstimateFairValueDiscountRate	0.0892
CY2023	us-gaap	Servicing Assets And Servicing Liabilities At Fair Value Assumptions Used To Estimate Fair Value Discount Rate ServicingAssetsAndServicingLiabilitiesAtFairValueAssumptionsUsedToEstimateFairValueDiscountRate	0.0972
	us-gaap	Servicing Assets And Servicing Liabilities At Fair Value Assumptions Used To Estimate Fair Value Prepayment Speed ServicingAssetsAndServicingLiabilitiesAtFairValueAssumptionsUsedToEstimateFairValuePrepaymentSpeed	0.0746
CY2023	us-gaap	Servicing Assets And Servicing Liabilities At Fair Value Assumptions Used To Estimate Fair Value Prepayment Speed ServicingAssetsAndServicingLiabilitiesAtFairValueAssumptionsUsedToEstimateFairValuePrepaymentSpeed	0.0734
	bokf	Servicing Assets At Fair Value Assumptions Used To Estimate Fair Value Performing Loan Service Cost Minimum ServicingAssetsAtFairValueAssumptionsUsedToEstimateFairValuePerformingLoanServiceCostMinimum	73	usd
	bokf	Servicing Assets At Fair Value Assumptions Used To Estimate Fair Value Performing Loan Service Cost Maximum ServicingAssetsAtFairValueAssumptionsUsedToEstimateFairValuePerformingLoanServiceCostMaximum	94	usd
CY2023	bokf	Servicing Assets At Fair Value Assumptions Used To Estimate Fair Value Performing Loan Service Cost Minimum ServicingAssetsAtFairValueAssumptionsUsedToEstimateFairValuePerformingLoanServiceCostMinimum	69	usd
CY2023	bokf	Servicing Assets At Fair Value Assumptions Used To Estimate Fair Value Performing Loan Service Cost Maximum ServicingAssetsAtFairValueAssumptionsUsedToEstimateFairValuePerformingLoanServiceCostMaximum	94	usd
	bokf	Servicing Assets At Fair Value Assumptions Used To Estimate Fair Value Delinquent Loan Service Cost Minimum ServicingAssetsAtFairValueAssumptionsUsedToEstimateFairValueDelinquentLoanServiceCostMinimum	150	usd
	bokf	Servicing Assets At Fair Value Assumptions Used To Estimate Fair Value Delinquent Loan Svc Cost Maximum ServicingAssetsAtFairValueAssumptionsUsedToEstimateFairValueDelinquentLoanSvcCostMaximum	500	usd
CY2023	bokf	Servicing Assets At Fair Value Assumptions Used To Estimate Fair Value Delinquent Loan Service Cost Minimum ServicingAssetsAtFairValueAssumptionsUsedToEstimateFairValueDelinquentLoanServiceCostMinimum	150	usd
CY2023	bokf	Servicing Assets At Fair Value Assumptions Used To Estimate Fair Value Delinquent Loan Svc Cost Maximum ServicingAssetsAtFairValueAssumptionsUsedToEstimateFairValueDelinquentLoanSvcCostMaximum	500	usd
	bokf	Servicing Assets At Fair Value Assumptions Used To Estimate Fair Value Foreclosure Loan Service Cost Minimum ServicingAssetsAtFairValueAssumptionsUsedToEstimateFairValueForeclosureLoanServiceCostMinimum	875	usd
	bokf	Servicing Assets At Fair Value Assumptions Used To Estimate Fair Value Foreclosure Loan Service Cost Maximum ServicingAssetsAtFairValueAssumptionsUsedToEstimateFairValueForeclosureLoanServiceCostMaximum	8000	usd
CY2023	bokf	Servicing Assets At Fair Value Assumptions Used To Estimate Fair Value Foreclosure Loan Service Cost Minimum ServicingAssetsAtFairValueAssumptionsUsedToEstimateFairValueForeclosureLoanServiceCostMinimum	875	usd
CY2023	bokf	Servicing Assets At Fair Value Assumptions Used To Estimate Fair Value Foreclosure Loan Service Cost Maximum ServicingAssetsAtFairValueAssumptionsUsedToEstimateFairValueForeclosureLoanServiceCostMaximum	8000	usd
	bokf	Servicing Assets At Fair Value Assumptions Used To Estimate Fair Value Escrow Earnings Rate ServicingAssetsAtFairValueAssumptionsUsedToEstimateFairValueEscrowEarningsRate	0.0363
CY2023	bokf	Servicing Assets At Fair Value Assumptions Used To Estimate Fair Value Escrow Earnings Rate ServicingAssetsAtFairValueAssumptionsUsedToEstimateFairValueEscrowEarningsRate	0.0390
CY2024Q3	bokf	Primarysecondarymortgageratespread Primarysecondarymortgageratespread	115
CY2023Q4	bokf	Primarysecondarymortgageratespread Primarysecondarymortgageratespread	105
	bokf	Servicing Assetsand Servicing Liabilitiesat Fair Value Assumptions Usedto Estimate Fair Value Delinquency Rate ServicingAssetsandServicingLiabilitiesatFairValueAssumptionsUsedtoEstimateFairValueDelinquencyRate	0.0209
CY2023	bokf	Servicing Assetsand Servicing Liabilitiesat Fair Value Assumptions Usedto Estimate Fair Value Delinquency Rate ServicingAssetsandServicingLiabilitiesatFairValueAssumptionsUsedtoEstimateFairValueDelinquencyRate	0.0206
CY2024Q3	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.55
	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	1.65
CY2023Q3	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.54
	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	1.62
CY2022Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-836955000	usd
	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Before Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodBeforeTax	-171977000	usd
	us-gaap	Oci Debt Securities Available For Sale Transfer To Held To Maturity Adjustment From Aoci For Amortization Of Gain Loss Before Tax OciDebtSecuritiesAvailableForSaleTransferToHeldToMaturityAdjustmentFromAociForAmortizationOfGainLossBeforeTax	-46996000	usd
	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesBeforeTax	-3010000	usd
	us-gaap	Other Comprehensive Income Loss Before Tax OtherComprehensiveIncomeLossBeforeTax	-121971000	usd
	us-gaap	Other Comprehensive Income Loss Tax OtherComprehensiveIncomeLossTax	-29941000	usd
	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-92030000	usd
CY2023Q3	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-928985000	usd
CY2023Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-599100000	usd
	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Before Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodBeforeTax	263436000	usd
	us-gaap	Oci Debt Securities Available For Sale Transfer To Held To Maturity Adjustment From Aoci For Amortization Of Gain Loss Before Tax OciDebtSecuritiesAvailableForSaleTransferToHeldToMaturityAdjustmentFromAociForAmortizationOfGainLossBeforeTax	-35641000	usd
	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesBeforeTax	-45828000	usd
	us-gaap	Other Comprehensive Income Loss Before Tax OtherComprehensiveIncomeLossBeforeTax	344905000	usd
	us-gaap	Other Comprehensive Income Loss Tax OtherComprehensiveIncomeLossTax	81094000	usd
	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	263811000	usd
CY2024Q3	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-335289000	usd
CY2024Q3	us-gaap	Net Income Loss NetIncomeLoss	139999000	usd
CY2023Q3	us-gaap	Net Income Loss NetIncomeLoss	134495000	usd
	us-gaap	Net Income Loss NetIncomeLoss	387415000	usd
	us-gaap	Net Income Loss NetIncomeLoss	448171000	usd
CY2024Q3	us-gaap	Undistributed Earnings Loss Allocated To Participating Securities Basic UndistributedEarningsLossAllocatedToParticipatingSecuritiesBasic	1383000	usd
CY2023Q3	us-gaap	Undistributed Earnings Loss Allocated To Participating Securities Basic UndistributedEarningsLossAllocatedToParticipatingSecuritiesBasic	1104000	usd
	us-gaap	Undistributed Earnings Loss Allocated To Participating Securities Basic UndistributedEarningsLossAllocatedToParticipatingSecuritiesBasic	3660000	usd
	us-gaap	Undistributed Earnings Loss Allocated To Participating Securities Basic UndistributedEarningsLossAllocatedToParticipatingSecuritiesBasic	3561000	usd
CY2024Q3	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	138616000	usd
CY2023Q3	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	133391000	usd
	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	383755000	usd
	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	444610000	usd
CY2024Q3	us-gaap	Undistributed Earnings Loss Allocated To Participating Securities Diluted UndistributedEarningsLossAllocatedToParticipatingSecuritiesDiluted	0	usd
CY2023Q3	us-gaap	Undistributed Earnings Loss Allocated To Participating Securities Diluted UndistributedEarningsLossAllocatedToParticipatingSecuritiesDiluted	0	usd
	us-gaap	Undistributed Earnings Loss Allocated To Participating Securities Diluted UndistributedEarningsLossAllocatedToParticipatingSecuritiesDiluted	0	usd
	us-gaap	Undistributed Earnings Loss Allocated To Participating Securities Diluted UndistributedEarningsLossAllocatedToParticipatingSecuritiesDiluted	0	usd
CY2024Q3	us-gaap	Net Income Loss Available To Common Stockholders Diluted NetIncomeLossAvailableToCommonStockholdersDiluted	138616000	usd
CY2023Q3	us-gaap	Net Income Loss Available To Common Stockholders Diluted NetIncomeLossAvailableToCommonStockholdersDiluted	133391000	usd
	us-gaap	Net Income Loss Available To Common Stockholders Diluted NetIncomeLossAvailableToCommonStockholdersDiluted	383755000	usd
	us-gaap	Net Income Loss Available To Common Stockholders Diluted NetIncomeLossAvailableToCommonStockholdersDiluted	444610000	usd
CY2024Q3	us-gaap	Weighted Average Number Of Shares Issued Basic WeightedAverageNumberOfSharesIssuedBasic	64122351	shares
CY2023Q3	us-gaap	Weighted Average Number Of Shares Issued Basic WeightedAverageNumberOfSharesIssuedBasic	66090988	shares
	us-gaap	Weighted Average Number Of Shares Issued Basic WeightedAverageNumberOfSharesIssuedBasic	64425159	shares
	us-gaap	Weighted Average Number Of Shares Issued Basic WeightedAverageNumberOfSharesIssuedBasic	66484557	shares
CY2024Q3	us-gaap	Incremental Common Shares Attributable To Participating Nonvested Shares With Non Forfeitable Dividend Rights IncrementalCommonSharesAttributableToParticipatingNonvestedSharesWithNonForfeitableDividendRights	632770	shares
CY2023Q3	us-gaap	Incremental Common Shares Attributable To Participating Nonvested Shares With Non Forfeitable Dividend Rights IncrementalCommonSharesAttributableToParticipatingNonvestedSharesWithNonForfeitableDividendRights	542681	shares
	us-gaap	Incremental Common Shares Attributable To Participating Nonvested Shares With Non Forfeitable Dividend Rights IncrementalCommonSharesAttributableToParticipatingNonvestedSharesWithNonForfeitableDividendRights	594971	shares
	us-gaap	Incremental Common Shares Attributable To Participating Nonvested Shares With Non Forfeitable Dividend Rights IncrementalCommonSharesAttributableToParticipatingNonvestedSharesWithNonForfeitableDividendRights	529263	shares
CY2024Q3	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	63489581	shares
CY2023Q3	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	65548307	shares
	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	63830188	shares
	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	65955294	shares
CY2024Q3	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	0	shares
CY2023Q3	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	0	shares
	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	0	shares
	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	0	shares
CY2024Q3	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	63489581	shares
CY2023Q3	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	65548307	shares
	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	63830188	shares
	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	65955294	shares
CY2024Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	2.18
CY2023Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	2.04
	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	6.01
	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	6.74
CY2024Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	2.18
CY2023Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	2.04
	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	6.01
	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	6.74
CY2024Q3	bokf	Nii Expense From External Sources NIIExpenseFromExternalSources	308119000	usd
CY2024Q3	bokf	Nii Expense From Internal Sources NIIExpenseFromInternalSources	0	usd
CY2024Q3	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	308119000	usd
CY2024Q3	us-gaap	Provision For Loan Lease And Other Losses ProvisionForLoanLeaseAndOtherLosses	2000000	usd
CY2024Q3	us-gaap	Interest Income Expense After Provision For Loan Loss InterestIncomeExpenseAfterProvisionForLoanLoss	306119000	usd
CY2024Q3	us-gaap	Noninterest Income NoninterestIncome	208192000	usd
CY2024Q3	us-gaap	Noninterest Expense NoninterestExpense	341025000	usd
CY2024Q3	bokf	Netdirectcontribution Netdirectcontribution	173286000	usd
CY2024Q3	bokf	Gain Losson Financial Instruments Net GainLossonFinancialInstrumentsNet	0	usd
CY2024Q3	bokf	Segment Reporting Changein Fair Valueof Mortgage Servicing Rights SegmentReportingChangeinFairValueofMortgageServicingRights	0	usd
CY2024Q3	us-gaap	Gain Loss On Sales Of Assets And Asset Impairment Charges GainLossOnSalesOfAssetsAndAssetImpairmentCharges	0	usd
CY2024Q3	bokf	Corporate Expense Allocations CorporateExpenseAllocations	0	usd
CY2024Q3	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	173286000	usd
CY2024Q3	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	33313000	usd
CY2024Q3	us-gaap	Profit Loss ProfitLoss	139973000	usd
CY2024Q3	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	-26000	usd
CY2024Q3	us-gaap	Net Income Loss NetIncomeLoss	139999000	usd
CY2024Q3	us-gaap	Assets Average Outstanding AssetsAverageOutstanding	51157035000	usd
	bokf	Nii Expense From External Sources NIIExpenseFromExternalSources	897712000	usd
	bokf	Nii Expense From Internal Sources NIIExpenseFromInternalSources	0	usd
	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	897712000	usd
	us-gaap	Provision For Loan Lease And Other Losses ProvisionForLoanLeaseAndOtherLosses	18000000	usd
	us-gaap	Interest Income Expense After Provision For Loan Loss InterestIncomeExpenseAfterProvisionForLoanLoss	879712000	usd
	us-gaap	Noninterest Income NoninterestIncome	629597000	usd
	us-gaap	Noninterest Expense NoninterestExpense	1018099000	usd
	bokf	Netdirectcontribution Netdirectcontribution	491210000	usd
	bokf	Gain Losson Financial Instruments Net GainLossonFinancialInstrumentsNet	0	usd
	bokf	Segment Reporting Changein Fair Valueof Mortgage Servicing Rights SegmentReportingChangeinFairValueofMortgageServicingRights	0	usd
	us-gaap	Gain Loss On Sales Of Assets And Asset Impairment Charges GainLossOnSalesOfAssetsAndAssetImpairmentCharges	0	usd
	bokf	Corporate Expense Allocations CorporateExpenseAllocations	0	usd
	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	491210000	usd
	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	103811000	usd
	us-gaap	Profit Loss ProfitLoss	387399000	usd
	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	-16000	usd
	us-gaap	Net Income Loss NetIncomeLoss	387415000	usd
	us-gaap	Assets Average Outstanding AssetsAverageOutstanding	50794596000	usd
CY2023Q3	bokf	Nii Expense From External Sources NIIExpenseFromExternalSources	300896000	usd
CY2023Q3	bokf	Nii Expense From Internal Sources NIIExpenseFromInternalSources	0	usd
CY2023Q3	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	300896000	usd
CY2023Q3	us-gaap	Provision For Loan Lease And Other Losses ProvisionForLoanLeaseAndOtherLosses	7000000	usd
CY2023Q3	us-gaap	Interest Income Expense After Provision For Loan Loss InterestIncomeExpenseAfterProvisionForLoanLoss	293896000	usd
CY2023Q3	us-gaap	Noninterest Income NoninterestIncome	198152000	usd
CY2023Q3	us-gaap	Noninterest Expense NoninterestExpense	324313000	usd
CY2023Q3	bokf	Netdirectcontribution Netdirectcontribution	167735000	usd
CY2023Q3	bokf	Gain Losson Financial Instruments Net GainLossonFinancialInstrumentsNet	0	usd
CY2023Q3	bokf	Segment Reporting Changein Fair Valueof Mortgage Servicing Rights SegmentReportingChangeinFairValueofMortgageServicingRights	0	usd
CY2023Q3	us-gaap	Gain Loss On Sales Of Assets And Asset Impairment Charges GainLossOnSalesOfAssetsAndAssetImpairmentCharges	0	usd
CY2023Q3	bokf	Corporate Expense Allocations CorporateExpenseAllocations	0	usd
CY2023Q3	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	167735000	usd
CY2023Q3	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	33256000	usd
CY2023Q3	us-gaap	Profit Loss ProfitLoss	134479000	usd
CY2023Q3	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	-16000	usd
CY2023Q3	us-gaap	Net Income Loss NetIncomeLoss	134495000	usd
CY2023Q3	us-gaap	Assets Average Outstanding AssetsAverageOutstanding	49319552000	usd
	bokf	Nii Expense From External Sources NIIExpenseFromExternalSources	975505000	usd
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	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	975505000	usd
	us-gaap	Provision For Loan Lease And Other Losses ProvisionForLoanLeaseAndOtherLosses	40000000	usd
	us-gaap	Interest Income Expense After Provision For Loan Loss InterestIncomeExpenseAfterProvisionForLoanLoss	935505000	usd
	us-gaap	Noninterest Income NoninterestIncome	585066000	usd
	us-gaap	Noninterest Expense NoninterestExpense	948798000	usd
	bokf	Netdirectcontribution Netdirectcontribution	571773000	usd
	bokf	Gain Losson Financial Instruments Net GainLossonFinancialInstrumentsNet	0	usd
	bokf	Segment Reporting Changein Fair Valueof Mortgage Servicing Rights SegmentReportingChangeinFairValueofMortgageServicingRights	0	usd
	us-gaap	Gain Loss On Sales Of Assets And Asset Impairment Charges GainLossOnSalesOfAssetsAndAssetImpairmentCharges	0	usd
	bokf	Corporate Expense Allocations CorporateExpenseAllocations	0	usd
	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	571773000	usd
	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	123162000	usd
	us-gaap	Profit Loss ProfitLoss	448611000	usd
	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	440000	usd
	us-gaap	Net Income Loss NetIncomeLoss	448171000	usd
	us-gaap	Assets Average Outstanding AssetsAverageOutstanding	47748933000	usd
CY2024Q3	ecd	Non Rule10b51 Arr Adopted Flag NonRule10b51ArrAdoptedFlag	false
CY2024Q3	ecd	Non Rule10b51 Arr Trmntd Flag NonRule10b51ArrTrmntdFlag	false
CY2024Q3	ecd	Rule10b51 Arr Adopted Flag Rule10b51ArrAdoptedFlag	false
CY2024Q3	ecd	Rule10b51 Arr Trmntd Flag Rule10b51ArrTrmntdFlag	false

Files In Submission

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$BOKF
BOK FINANCIAL CORP Stock $bokf

2024 Q3 Form 10-Q Financial Statement

#000087535724000050 Filed on October 30, 2024

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$BOKF BOK FINANCIAL CORP Stock $bokf

2024 Q3 Form 10-Q Financial Statement

#000087535724000050 Filed on October 30, 2024

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$BOKF
BOK FINANCIAL CORP Stock $bokf