$WAFD
WAFD INC Stock $wafd

$wafd Overview Financials Valuation SEC Filings Company Website

2024 Q4 Form 10-K Financial Statement

#000093652824000164 Filed on November 20, 2024

Income Statement

Concept	2024 Q4	2024 Q3	2024
Revenue	$7.046M		$27.51M
YoY Change	3.59%		5.59%
Cost Of Revenue
YoY Change
Gross Profit
YoY Change
Gross Profit Margin
Selling, General & Admin
YoY Change
% of Gross Profit
Research & Development
YoY Change
% of Gross Profit
Depreciation & Amortization		-$60.05M	$134.1M
YoY Change		-925.96%	483.82%
% of Gross Profit
Operating Expenses
YoY Change
Operating Profit
YoY Change
Interest Expense
YoY Change
% of Operating Profit
Other Income/Expense, Net
YoY Change
Pretax Income	$60.25M	$80.67M	$256.1M
YoY Change	-15.96%	36.45%	-21.23%
Income Tax	$12.98M	$19.53M	$56.02M
% Of Pretax Income	21.55%	24.21%	21.88%
Net Earnings	$47.27M	$57.48M	$185.4M
YoY Change	-19.14%	23.48%	-27.97%
Net Earnings / Revenue	670.83%		674.07%
Basic Earnings Per Share	$0.54		$2.50
Diluted Earnings Per Share	$0.54	$0.71	$2.50
COMMON SHARES
Basic Shares Outstanding	81.35M shares	81.22M shares	74.24M shares
Diluted Shares Outstanding	81.40M shares		74.29M shares

Balance Sheet

Concept	2024 Q4	2024 Q3	2024
SHORT-TERM ASSETS
Cash & Short-Term Investments
YoY Change
Cash & Equivalents	$1.508B	$2.381B
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	$248.9M	$247.9M	$247.9M
YoY Change	4.94%	4.59%	-3.97%
Goodwill	$414.7M	$411.4M
YoY Change	35.92%	34.98%
Intangibles
YoY Change
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	$27.68B	$28.06B	$28.06B
YoY Change	22.28%	24.85%	24.85%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable
YoY Change
Accrued Expenses		$306.4M	$306.4M
YoY Change		11.28%	11.28%
Deferred Revenue
YoY Change
Short-Term Debt
YoY Change
Long-Term Debt Due
YoY Change
Total Short-Term Liabilities		$306.4M	$306.4M
YoY Change		11.28%	11.28%
LONG-TERM LIABILITIES
Long-Term Debt		$50.72M	$50.72M
YoY Change
Other Long-Term Liabilities		$61.33M	$61.33M
YoY Change		16.71%	16.71%
Total Long-Term Liabilities		$112.0M	$112.0M
YoY Change		113.22%	113.22%
TOTAL LIABILITIES
Total Short-Term Liabilities		$306.4M	$306.4M
Total Long-Term Liabilities		$112.0M	$112.0M
Total Liabilities	$24.66B	$25.06B	$25.06B
YoY Change	22.17%	25.0%	25.0%
SHAREHOLDERS EQUITY
Retained Earnings	$2.002B	$1.979B
YoY Change	4.98%	5.95%
Common Stock	$2.309B	$2.305B
YoY Change	26.34%	26.35%
Preferred Stock
YoY Change
Treasury Stock (at cost)
YoY Change
Treasury Stock Shares
Shareholders Equity	$3.022B	$3.000B	$3.000B
YoY Change
Total Liabilities & Shareholders Equity	$27.68B	$28.06B	$28.06B
YoY Change	22.28%	24.85%	24.85%

Cashflow Statement

Concept	2024 Q4	2024 Q3	2024
OPERATING ACTIVITIES
Net Income	$47.27M	$57.48M	$185.4M
YoY Change	-19.14%	23.48%	-27.97%
Depreciation, Depletion And Amortization		-$60.05M	$134.1M
YoY Change		-925.96%	483.82%
Cash From Operating Activities	$49.43M	$96.62M	$439.2M
YoY Change	-55.17%	16.61%	105.29%
INVESTING ACTIVITIES
Capital Expenditures	$6.446M	$7.199M	$24.68M
YoY Change	-21.34%	86.36%	63.85%
Acquisitions	$360.0K		-$623.6M
YoY Change	-52.0%		-24176.56%
Other Investing Activities		$370.1M	$3.312B
YoY Change		-522.76%	-343.01%
Cash From Investing Activities	-$514.6M	$362.9M	$3.287B
YoY Change	624.48%	-497.02%	-338.56%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net
YoY Change
Debt Paid & Issued, Net
YoY Change
Cash From Financing Activities	-$408.2M	-571.0M	-$2.326B
YoY Change	-426.86%	279.49%	-259.24%
NET CHANGE
Cash From Operating Activities	$49.43M	96.62M	$439.2M
Cash From Investing Activities	-$514.6M	362.9M	$3.287B
Cash From Financing Activities	-$408.2M	-571.0M	-$2.326B
Net Change In Cash	-$873.4M	-111.4M	$1.400B
YoY Change	-632.14%	-29.94%	372.04%
FREE CASH FLOW
Cash From Operating Activities	$49.43M	$96.62M	$439.2M
Capital Expenditures	$6.446M	$7.199M	$24.68M
Free Cash Flow	$42.98M	$89.42M	$414.6M
YoY Change	-57.89%	13.2%	108.43%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
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CY2023	us-gaap	Debt And Equity Securities Gain Loss DebtAndEquitySecuritiesGainLoss	33000	usd
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CY2023	wfsl	Gain Loss On Terminated Derivative Instruments Net Pretax GainLossOnTerminatedDerivativeInstrumentsNetPretax	-867000	usd
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CY2023	us-gaap	Fees And Commissions Mortgage Banking And Servicing FeesAndCommissionsMortgageBankingAndServicing	3885000	usd
CY2022	us-gaap	Fees And Commissions Mortgage Banking And Servicing FeesAndCommissionsMortgageBankingAndServicing	7168000	usd
CY2024	dei	Amendment Flag AmendmentFlag	false
CY2024	dei	Document Annual Report DocumentAnnualReport	true
CY2024	dei	Current Fiscal Year End Date CurrentFiscalYearEndDate	--09-30
CY2024	dei	Document Transition Report DocumentTransitionReport	false
CY2024	dei	Entity Incorporation State Country Code EntityIncorporationStateCountryCode	WA
CY2024	dei	Entity Tax Identification Number EntityTaxIdentificationNumber	91-1661606
CY2024	dei	Entity Address Address Line1 EntityAddressAddressLine1	425 Pike Street
CY2024	dei	Entity Address City Or Town EntityAddressCityOrTown	Seattle
CY2024	dei	Entity Address State Or Province EntityAddressStateOrProvince	WA
CY2024	dei	Entity Address Postal Zip Code EntityAddressPostalZipCode	98101
CY2024	dei	City Area Code CityAreaCode	206
CY2024	dei	Local Phone Number LocalPhoneNumber	624-7930
CY2024	dei	Entity Well Known Seasoned Issuer EntityWellKnownSeasonedIssuer	Yes
CY2024	dei	Entity Voluntary Filers EntityVoluntaryFilers	No
CY2024	dei	Entity Current Reporting Status EntityCurrentReportingStatus	Yes
CY2024	dei	Entity Interactive Data Current EntityInteractiveDataCurrent	Yes
CY2024	dei	Entity Filer Category EntityFilerCategory	Large Accelerated Filer
CY2024	dei	Entity Small Business EntitySmallBusiness	false
CY2024	dei	Entity Emerging Growth Company EntityEmergingGrowthCompany	false
CY2024	dei	Icfr Auditor Attestation Flag IcfrAuditorAttestationFlag	true
CY2024	dei	Document Fin Stmt Error Correction Flag DocumentFinStmtErrorCorrectionFlag	false
CY2024	dei	Entity Shell Company EntityShellCompany	false
CY2024	dei	Auditor Firm AuditorFirmId	34
CY2024	dei	Auditor Name AuditorName	Deloitte & Touche LLP
CY2024	dei	Auditor Location AuditorLocation	Seattle, Washington
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CY2024Q3	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	247901000	usd
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CY2024	dei	Entity File Number EntityFileNumber	001-34654
CY2024	dei	Entity Registrant Name EntityRegistrantName	WAFD, INC.
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CY2023	us-gaap	Interest Expense Deposits InterestExpenseDeposits	237233000	usd
CY2024	us-gaap	Interest Expense Operating InterestExpenseOperating	710878000	usd
CY2023	us-gaap	Interest Expense Operating InterestExpenseOperating	352721000	usd
CY2022	us-gaap	Interest Expense Operating InterestExpenseOperating	71770000	usd
CY2024	us-gaap	Fees And Commissions Mortgage Banking And Servicing FeesAndCommissionsMortgageBankingAndServicing	2745000	usd
CY2024	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	27507000	usd
CY2023	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	26050000	usd
CY2022	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	25942000	usd
CY2024	us-gaap	Noninterest Income Other Operating Income NoninterestIncomeOtherOperatingIncome	29857000	usd
CY2023	us-gaap	Noninterest Income Other Operating Income NoninterestIncomeOtherOperatingIncome	23100000	usd
CY2022	us-gaap	Noninterest Income Other Operating Income NoninterestIncomeOtherOperatingIncome	33163000	usd
CY2024	us-gaap	Noninterest Income NoninterestIncome	60692000	usd
CY2023	us-gaap	Noninterest Income NoninterestIncome	52201000	usd
CY2022	us-gaap	Noninterest Income NoninterestIncome	66372000	usd
CY2024	us-gaap	Labor And Related Expense LaborAndRelatedExpense	234148000	usd
CY2023	us-gaap	Labor And Related Expense LaborAndRelatedExpense	196534000	usd
CY2022	us-gaap	Labor And Related Expense LaborAndRelatedExpense	193917000	usd
CY2024	us-gaap	Occupancy Net OccupancyNet	42036000	usd
CY2023	us-gaap	Occupancy Net OccupancyNet	41579000	usd
CY2022	us-gaap	Occupancy Net OccupancyNet	42499000	usd
CY2024	us-gaap	Federal Deposit Insurance Corporation Premium Expense FederalDepositInsuranceCorporationPremiumExpense	28870000	usd
CY2023	us-gaap	Federal Deposit Insurance Corporation Premium Expense FederalDepositInsuranceCorporationPremiumExpense	20025000	usd
CY2022	us-gaap	Federal Deposit Insurance Corporation Premium Expense FederalDepositInsuranceCorporationPremiumExpense	9531000	usd
CY2024	wfsl	Product Delivery Expense ProductDeliveryExpense	23986000	usd
CY2023	wfsl	Product Delivery Expense ProductDeliveryExpense	20973000	usd
CY2022	wfsl	Product Delivery Expense ProductDeliveryExpense	19536000	usd
CY2024	us-gaap	Information Technology And Data Processing InformationTechnologyAndDataProcessing	53306000	usd
CY2023	us-gaap	Information Technology And Data Processing InformationTechnologyAndDataProcessing	49447000	usd
CY2022	us-gaap	Information Technology And Data Processing InformationTechnologyAndDataProcessing	47202000	usd
CY2024	us-gaap	Other Noninterest Expense OtherNoninterestExpense	65926000	usd
CY2023	us-gaap	Other Noninterest Expense OtherNoninterestExpense	47477000	usd
CY2022	us-gaap	Other Noninterest Expense OtherNoninterestExpense	45890000	usd
CY2024	us-gaap	Noninterest Expense NoninterestExpense	448272000	usd
CY2023	us-gaap	Noninterest Expense NoninterestExpense	376035000	usd
CY2022	us-gaap	Noninterest Expense NoninterestExpense	358575000	usd
CY2024	us-gaap	Gains Losses On Sales Of Other Real Estate GainsLossesOnSalesOfOtherRealEstate	304000	usd
CY2023	us-gaap	Gains Losses On Sales Of Other Real Estate GainsLossesOnSalesOfOtherRealEstate	176000	usd
CY2022	us-gaap	Gains Losses On Sales Of Other Real Estate GainsLossesOnSalesOfOtherRealEstate	651000	usd
CY2024	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	256056000	usd
CY2023	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	325076000	usd
CY2022	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	300037000	usd
CY2024	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	56015000	usd
CY2023	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	67650000	usd
CY2022	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	63707000	usd
CY2024	us-gaap	Net Income Loss NetIncomeLoss	200041000	usd
CY2023	us-gaap	Net Income Loss NetIncomeLoss	257426000	usd
CY2022	us-gaap	Net Income Loss NetIncomeLoss	236330000	usd
CY2024	us-gaap	Preferred Stock Dividends Income Statement Impact PreferredStockDividendsIncomeStatementImpact	14625000	usd
CY2023	us-gaap	Preferred Stock Dividends Income Statement Impact PreferredStockDividendsIncomeStatementImpact	14625000	usd
CY2022	us-gaap	Preferred Stock Dividends Income Statement Impact PreferredStockDividendsIncomeStatementImpact	14625000	usd
CY2024	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	185416000	usd
CY2023	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	242801000	usd
CY2022	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	221705000	usd
CY2024	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	2.50
CY2023	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	3.72
CY2022	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	3.40
CY2024	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	2.50
CY2023	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	3.72
CY2022	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	3.39
CY2024	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	1.03
CY2023	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	0.99
CY2024	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	74244323	shares
CY2023	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	65192510	shares
CY2022	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	65287650	shares
CY2024	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	74290568	shares
CY2023	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	65255283	shares
CY2022	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	65404110	shares
CY2024	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax	17782000	usd
CY2023	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax	-2493000	usd
CY2022	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax	-36908000	usd
CY2024	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax	61225000	usd
CY2023	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax	-9360000	usd
CY2022	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax	-123077000	usd
CY2024	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesTax	81000	usd
CY2023	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesTax	9000	usd
CY2022	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesTax	23000	usd
CY2024	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax	-261000	usd
CY2023	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax	-26000	usd
CY2022	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax	-76000	usd
CY2024	us-gaap	Other Comprehensive Income Availableforsale Securities Adjustment Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeAvailableforsaleSecuritiesAdjustmentNetOfTaxPortionAttributableToParent	61486000	usd
CY2023	us-gaap	Other Comprehensive Income Availableforsale Securities Adjustment Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeAvailableforsaleSecuritiesAdjustmentNetOfTaxPortionAttributableToParent	-9334000	usd
CY2022	us-gaap	Other Comprehensive Income Availableforsale Securities Adjustment Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeAvailableforsaleSecuritiesAdjustmentNetOfTaxPortionAttributableToParent	-123001000	usd
CY2024	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Before Reclassification Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationTax	-14546000	usd
CY2023	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Before Reclassification Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationTax	654000	usd
CY2022	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Before Reclassification Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationTax	31805000	usd
CY2024	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Before Reclassification After Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAfterTax	-52556000	usd
CY2023	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Before Reclassification After Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAfterTax	3774000	usd
CY2022	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Before Reclassification After Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAfterTax	105697000	usd
CY2024	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification And Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTax	-52556000	usd
CY2023	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification And Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTax	3774000	usd
CY2022	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification And Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTax	105697000	usd
CY2024	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	8930000	usd
CY2023	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-5560000	usd
CY2022	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-17304000	usd
CY2024	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	208971000	usd
CY2023	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	251866000	usd
CY2022	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	219026000	usd
CY2021Q3	us-gaap	Stockholders Equity StockholdersEquity	2126064000	usd
CY2022	us-gaap	Net Income Loss NetIncomeLoss	236330000	usd
CY2022	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-17304000	usd
CY2022	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	0.95
CY2022	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	61576000	usd
CY2022	us-gaap	Preferred Stock Dividends Per Share Cash Paid PreferredStockDividendsPerShareCashPaid	48.75
CY2022	us-gaap	Dividends Preferred Stock DividendsPreferredStock	14625000	usd
CY2022	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	1823000	usd
CY2022	us-gaap	Stock Granted During Period Value Sharebased Compensation StockGrantedDuringPeriodValueSharebasedCompensation	6808000	usd
CY2022	us-gaap	Treasury Stock Value Acquired Cost Method TreasuryStockValueAcquiredCostMethod	3260000	usd
CY2022Q3	us-gaap	Stockholders Equity StockholdersEquity	2274260000	usd
CY2023	us-gaap	Net Income Loss NetIncomeLoss	257426000	usd
CY2023	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-5560000	usd
CY2023	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	0.99
CY2023	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	63792000	usd
CY2023	us-gaap	Preferred Stock Dividends Per Share Cash Paid PreferredStockDividendsPerShareCashPaid	48.75
CY2023	us-gaap	Dividends Preferred Stock DividendsPreferredStock	14625000	usd
CY2023	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	1266000	usd
CY2023	us-gaap	Stock Granted During Period Value Sharebased Compensation StockGrantedDuringPeriodValueSharebasedCompensation	-411000	usd
CY2023	wfsl	Treasury Stock Value Stock Warrants Repurchased TreasuryStockValueStockWarrantsRepurchased	8325000	usd
CY2023	us-gaap	Treasury Stock Value Acquired Cost Method TreasuryStockValueAcquiredCostMethod	30463000	usd
CY2023Q3	us-gaap	Stockholders Equity StockholdersEquity	2426426000	usd
CY2024	us-gaap	Net Income Loss NetIncomeLoss	200041000	usd
CY2024	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	8930000	usd
CY2024	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	1.03
CY2024	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	74267000	usd
CY2024	us-gaap	Preferred Stock Dividends Per Share Cash Paid PreferredStockDividendsPerShareCashPaid	48.75
CY2024	us-gaap	Dividends Preferred Stock DividendsPreferredStock	14625000	usd
CY2024	us-gaap	Stock Issued During Period Value Acquisitions StockIssuedDuringPeriodValueAcquisitions	465504000	usd
CY2024	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	6179000	usd
CY2024	us-gaap	Stock Granted During Period Value Sharebased Compensation StockGrantedDuringPeriodValueSharebasedCompensation	9181000	usd
CY2024	us-gaap	Treasury Stock Value Acquired Cost Method TreasuryStockValueAcquiredCostMethod	27069000	usd
CY2024Q3	us-gaap	Stockholders Equity StockholdersEquity	3000300000	usd
CY2024	us-gaap	Net Income Loss NetIncomeLoss	200041000	usd
CY2023	us-gaap	Net Income Loss NetIncomeLoss	257426000	usd
CY2022	us-gaap	Net Income Loss NetIncomeLoss	236330000	usd
CY2024	us-gaap	Depreciation Amortization And Accretion Net DepreciationAmortizationAndAccretionNet	134103000	usd
CY2023	us-gaap	Depreciation Amortization And Accretion Net DepreciationAmortizationAndAccretionNet	22970000	usd
CY2022	us-gaap	Depreciation Amortization And Accretion Net DepreciationAmortizationAndAccretionNet	64050000	usd
CY2024	us-gaap	Share Based Compensation ShareBasedCompensation	9181000	usd
CY2023	us-gaap	Share Based Compensation ShareBasedCompensation	7914000	usd
CY2022	us-gaap	Share Based Compensation ShareBasedCompensation	6808000	usd
CY2024	us-gaap	Financing Receivable Excluding Accrued Interest Credit Loss Expense Reversal FinancingReceivableExcludingAccruedInterestCreditLossExpenseReversal	17500000	usd
CY2023	us-gaap	Financing Receivable Excluding Accrued Interest Credit Loss Expense Reversal FinancingReceivableExcludingAccruedInterestCreditLossExpenseReversal	41500000	usd
CY2022	us-gaap	Financing Receivable Excluding Accrued Interest Credit Loss Expense Reversal FinancingReceivableExcludingAccruedInterestCreditLossExpenseReversal	3000000	usd
CY2024	us-gaap	Gain Loss On Sale Of Investments GainLossOnSaleOfInvestments	342000	usd
CY2023	us-gaap	Gain Loss On Sale Of Investments GainLossOnSaleOfInvestments	33000	usd
CY2022	us-gaap	Gain Loss On Sale Of Investments GainLossOnSaleOfInvestments	99000	usd
CY2024	wfsl	Gain Loss On Settlements Of Bank Owned Life Insurance GainLossOnSettlementsOfBankOwnedLifeInsurance	0	usd
CY2023	wfsl	Gain Loss On Settlements Of Bank Owned Life Insurance GainLossOnSettlementsOfBankOwnedLifeInsurance	821000	usd
CY2022	wfsl	Gain Loss On Settlements Of Bank Owned Life Insurance GainLossOnSettlementsOfBankOwnedLifeInsurance	1385000	usd
CY2024	us-gaap	Tangible Asset Impairment Charges TangibleAssetImpairmentCharges	0	usd
CY2023	us-gaap	Tangible Asset Impairment Charges TangibleAssetImpairmentCharges	6000	usd
CY2022	us-gaap	Tangible Asset Impairment Charges TangibleAssetImpairmentCharges	0	usd
CY2024	us-gaap	Gain Loss On Sale Of Property Plant Equipment GainLossOnSaleOfPropertyPlantEquipment	2555000	usd
CY2023	us-gaap	Gain Loss On Sale Of Property Plant Equipment GainLossOnSaleOfPropertyPlantEquipment	1153000	usd
CY2022	us-gaap	Gain Loss On Sale Of Property Plant Equipment GainLossOnSaleOfPropertyPlantEquipment	-655000	usd
CY2024	us-gaap	Increase Decrease In Accrued Interest Receivable Net IncreaseDecreaseInAccruedInterestReceivableNet	-9873000	usd
CY2023	us-gaap	Increase Decrease In Accrued Interest Receivable Net IncreaseDecreaseInAccruedInterestReceivableNet	23131000	usd
CY2022	us-gaap	Increase Decrease In Accrued Interest Receivable Net IncreaseDecreaseInAccruedInterestReceivableNet	13236000	usd
CY2024	us-gaap	Increase Decrease In Income Taxes Receivable IncreaseDecreaseInIncomeTaxesReceivable	-18751000	usd
CY2023	us-gaap	Increase Decrease In Income Taxes Receivable IncreaseDecreaseInIncomeTaxesReceivable	6650000	usd
CY2022	us-gaap	Increase Decrease In Income Taxes Receivable IncreaseDecreaseInIncomeTaxesReceivable	-3877000	usd
CY2024	us-gaap	Bank Owned Life Insurance Income BankOwnedLifeInsuranceIncome	6933000	usd
CY2023	us-gaap	Bank Owned Life Insurance Income BankOwnedLifeInsuranceIncome	5976000	usd
CY2022	us-gaap	Bank Owned Life Insurance Income BankOwnedLifeInsuranceIncome	5549000	usd
CY2024	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	-148001000	usd
CY2023	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	67342000	usd
CY2022	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	100146000	usd
CY2024	us-gaap	Increase Decrease In Accrued Income Taxes Payable IncreaseDecreaseInAccruedIncomeTaxesPayable	0	usd
CY2023	us-gaap	Increase Decrease In Accrued Income Taxes Payable IncreaseDecreaseInAccruedIncomeTaxesPayable	-3306000	usd
CY2022	us-gaap	Increase Decrease In Accrued Income Taxes Payable IncreaseDecreaseInAccruedIncomeTaxesPayable	8386000	usd
CY2024	us-gaap	Increase Decrease In Accrued Liabilities And Other Operating Liabilities IncreaseDecreaseInAccruedLiabilitiesAndOtherOperatingLiabilities	-88387000	usd
CY2023	us-gaap	Increase Decrease In Accrued Liabilities And Other Operating Liabilities IncreaseDecreaseInAccruedLiabilitiesAndOtherOperatingLiabilities	-7447000	usd
CY2022	us-gaap	Increase Decrease In Accrued Liabilities And Other Operating Liabilities IncreaseDecreaseInAccruedLiabilitiesAndOtherOperatingLiabilities	65774000	usd
CY2024	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	439233000	usd
CY2023	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	213957000	usd
CY2022	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	268465000	usd
CY2024	wfsl	Loans Originated Net Of Principal Collections LoansOriginatedNetOfPrincipalCollections	-348528000	usd
CY2023	wfsl	Loans Originated Net Of Principal Collections LoansOriginatedNetOfPrincipalCollections	-1330399000	usd
CY2022	wfsl	Loans Originated Net Of Principal Collections LoansOriginatedNetOfPrincipalCollections	-1748955000	usd
CY2024	us-gaap	Payments To Acquire Loans Held For Investment PaymentsToAcquireLoansHeldForInvestment	0	usd
CY2023	us-gaap	Payments To Acquire Loans Held For Investment PaymentsToAcquireLoansHeldForInvestment	79965000	usd
CY2022	us-gaap	Payments To Acquire Loans Held For Investment PaymentsToAcquireLoansHeldForInvestment	576697000	usd
CY2024	wfsl	Payments To Acquire Federal Home Loan Bank And Federal Reserve Bank Stock PaymentsToAcquireFederalHomeLoanBankAndFederalReserveBankStock	602941000	usd
CY2023	wfsl	Payments To Acquire Federal Home Loan Bank And Federal Reserve Bank Stock PaymentsToAcquireFederalHomeLoanBankAndFederalReserveBankStock	654805000	usd
CY2022	wfsl	Payments To Acquire Federal Home Loan Bank And Federal Reserve Bank Stock PaymentsToAcquireFederalHomeLoanBankAndFederalReserveBankStock	293800000	usd
CY2024	wfsl	Proceeds From Sale Of Federal Home Loan Bank And Federal Reserve Bank Stock ProceedsFromSaleOfFederalHomeLoanBankAndFederalReserveBankStock	669975000	usd
CY2023	wfsl	Proceeds From Sale Of Federal Home Loan Bank And Federal Reserve Bank Stock ProceedsFromSaleOfFederalHomeLoanBankAndFederalReserveBankStock	623058000	usd
CY2022	wfsl	Proceeds From Sale Of Federal Home Loan Bank And Federal Reserve Bank Stock ProceedsFromSaleOfFederalHomeLoanBankAndFederalReserveBankStock	301590000	usd
CY2024	us-gaap	Payments To Acquire Available For Sale Securities Debt PaymentsToAcquireAvailableForSaleSecuritiesDebt	549159000	usd
CY2023	us-gaap	Payments To Acquire Available For Sale Securities Debt PaymentsToAcquireAvailableForSaleSecuritiesDebt	376481000	usd
CY2022	us-gaap	Payments To Acquire Available For Sale Securities Debt PaymentsToAcquireAvailableForSaleSecuritiesDebt	587942000	usd
CY2024	us-gaap	Proceeds From Maturities Prepayments And Calls Of Available For Sale Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities	386564000	usd
CY2023	us-gaap	Proceeds From Maturities Prepayments And Calls Of Available For Sale Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities	420154000	usd
CY2022	us-gaap	Proceeds From Maturities Prepayments And Calls Of Available For Sale Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities	510156000	usd
CY2024	us-gaap	Proceeds From Sale Of Available For Sale Securities Debt ProceedsFromSaleOfAvailableForSaleSecuritiesDebt	182682000	usd
CY2023	us-gaap	Proceeds From Sale Of Available For Sale Securities Debt ProceedsFromSaleOfAvailableForSaleSecuritiesDebt	1169000	usd
CY2022	us-gaap	Proceeds From Sale Of Available For Sale Securities Debt ProceedsFromSaleOfAvailableForSaleSecuritiesDebt	5020000	usd
CY2024	us-gaap	Payments To Acquire Held To Maturity Securities PaymentsToAcquireHeldToMaturitySecurities	47092000	usd
CY2023	us-gaap	Payments To Acquire Held To Maturity Securities PaymentsToAcquireHeldToMaturitySecurities	0	usd
CY2022	us-gaap	Payments To Acquire Held To Maturity Securities PaymentsToAcquireHeldToMaturitySecurities	195357000	usd
CY2024	us-gaap	Proceeds From Maturities Prepayments And Calls Of Held To Maturity Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfHeldToMaturitySecurities	36013000	usd
CY2023	us-gaap	Proceeds From Maturities Prepayments And Calls Of Held To Maturity Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfHeldToMaturitySecurities	39414000	usd
CY2022	us-gaap	Proceeds From Maturities Prepayments And Calls Of Held To Maturity Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfHeldToMaturitySecurities	95326000	usd
CY2024	us-gaap	Proceeds From Sale Of Wholly Owned Real Estate And Real Estate Acquired In Settlement Of Loans ProceedsFromSaleOfWhollyOwnedRealEstateAndRealEstateAcquiredInSettlementOfLoans	6802000	usd
CY2023	us-gaap	Proceeds From Sale Of Wholly Owned Real Estate And Real Estate Acquired In Settlement Of Loans ProceedsFromSaleOfWhollyOwnedRealEstateAndRealEstateAcquiredInSettlementOfLoans	7192000	usd
CY2022	us-gaap	Proceeds From Sale Of Wholly Owned Real Estate And Real Estate Acquired In Settlement Of Loans ProceedsFromSaleOfWhollyOwnedRealEstateAndRealEstateAcquiredInSettlementOfLoans	6978000	usd
CY2024	us-gaap	Proceeds From Life Insurance Policies ProceedsFromLifeInsurancePolicies	0	usd
CY2023	us-gaap	Proceeds From Life Insurance Policies ProceedsFromLifeInsurancePolicies	1809000	usd
CY2022	us-gaap	Proceeds From Life Insurance Policies ProceedsFromLifeInsurancePolicies	2266000	usd
CY2024	us-gaap	Payments To Acquire Equity Method Investments PaymentsToAcquireEquityMethodInvestments	4197000	usd
CY2023	us-gaap	Payments To Acquire Equity Method Investments PaymentsToAcquireEquityMethodInvestments	12500000	usd
CY2022	us-gaap	Payments To Acquire Equity Method Investments PaymentsToAcquireEquityMethodInvestments	0	usd
CY2024	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	-623583000	usd
CY2023	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	2590000	usd
CY2022	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	0	usd
CY2024	us-gaap	Proceeds From Sale Of Loans Held For Investment ProceedsFromSaleOfLoansHeldForInvestment	2956856000	usd
CY2023	us-gaap	Proceeds From Sale Of Loans Held For Investment ProceedsFromSaleOfLoansHeldForInvestment	0	usd
CY2022	us-gaap	Proceeds From Sale Of Loans Held For Investment ProceedsFromSaleOfLoansHeldForInvestment	0	usd
CY2024	us-gaap	Proceeds From Sale Of Property Plant And Equipment ProceedsFromSaleOfPropertyPlantAndEquipment	1341000	usd
CY2023	us-gaap	Proceeds From Sale Of Property Plant And Equipment ProceedsFromSaleOfPropertyPlantAndEquipment	1090000	usd
CY2022	us-gaap	Proceeds From Sale Of Property Plant And Equipment ProceedsFromSaleOfPropertyPlantAndEquipment	41000	usd
CY2024	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	24681000	usd
CY2023	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	15063000	usd
CY2022	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	11790000	usd
CY2024	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	3287218000	usd
CY2023	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-1377917000	usd
CY2022	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-2493164000	usd
CY2024	us-gaap	Increase Decrease In Deposits IncreaseDecreaseInDeposits	-324506000	usd
CY2023	us-gaap	Increase Decrease In Deposits IncreaseDecreaseInDeposits	40759000	usd
CY2022	us-gaap	Increase Decrease In Deposits IncreaseDecreaseInDeposits	487458000	usd
CY2024	us-gaap	Proceeds From Issuance Of Other Long Term Debt ProceedsFromIssuanceOfOtherLongTermDebt	17037035000	usd
CY2023	us-gaap	Proceeds From Issuance Of Other Long Term Debt ProceedsFromIssuanceOfOtherLongTermDebt	17175000000	usd
CY2022	us-gaap	Proceeds From Issuance Of Other Long Term Debt ProceedsFromIssuanceOfOtherLongTermDebt	7345000000	usd
CY2024	us-gaap	Repayments Of Other Long Term Debt RepaymentsOfOtherLongTermDebt	18842525000	usd
CY2023	us-gaap	Repayments Of Other Long Term Debt RepaymentsOfOtherLongTermDebt	15650000000	usd
CY2022	us-gaap	Repayments Of Other Long Term Debt RepaymentsOfOtherLongTermDebt	6940000000	usd
CY2024	us-gaap	Repayments Of Senior Debt RepaymentsOfSeniorDebt	95000000	usd
CY2023	us-gaap	Repayments Of Senior Debt RepaymentsOfSeniorDebt	0	usd
CY2022	us-gaap	Repayments Of Senior Debt RepaymentsOfSeniorDebt	0	usd
CY2024	us-gaap	Proceeds From Issuance Of Shares Under Incentive And Share Based Compensation Plans Including Stock Options ProceedsFromIssuanceOfSharesUnderIncentiveAndShareBasedCompensationPlansIncludingStockOptions	5187000	usd
CY2023	us-gaap	Proceeds From Issuance Of Shares Under Incentive And Share Based Compensation Plans Including Stock Options ProceedsFromIssuanceOfSharesUnderIncentiveAndShareBasedCompensationPlansIncludingStockOptions	1089000	usd
CY2022	us-gaap	Proceeds From Issuance Of Shares Under Incentive And Share Based Compensation Plans Including Stock Options ProceedsFromIssuanceOfSharesUnderIncentiveAndShareBasedCompensationPlansIncludingStockOptions	1823000	usd
CY2024	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	74267000	usd
CY2023	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	63792000	usd
CY2022	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	61576000	usd
CY2024	us-gaap	Payments Of Dividends Preferred Stock And Preference Stock PaymentsOfDividendsPreferredStockAndPreferenceStock	14625000	usd
CY2023	us-gaap	Payments Of Dividends Preferred Stock And Preference Stock PaymentsOfDividendsPreferredStockAndPreferenceStock	14625000	usd
CY2022	us-gaap	Payments Of Dividends Preferred Stock And Preference Stock PaymentsOfDividendsPreferredStockAndPreferenceStock	14625000	usd
CY2024	us-gaap	Proceeds From Stock Plans ProceedsFromStockPlans	992000	usd
CY2023	us-gaap	Proceeds From Stock Plans ProceedsFromStockPlans	177000	usd
CY2022	us-gaap	Proceeds From Stock Plans ProceedsFromStockPlans	0	usd
CY2024	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	27069000	usd
CY2023	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	30463000	usd
CY2022	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	3260000	usd
CY2024	us-gaap	Increase Decrease In Advance Payments By Borrowers For Taxes And Insurance IncreaseDecreaseInAdvancePaymentsByBorrowersForTaxesAndInsurance	8780000	usd
CY2023	us-gaap	Increase Decrease In Advance Payments By Borrowers For Taxes And Insurance IncreaseDecreaseInAdvancePaymentsByBorrowersForTaxesAndInsurance	2499000	usd
CY2022	us-gaap	Increase Decrease In Advance Payments By Borrowers For Taxes And Insurance IncreaseDecreaseInAdvancePaymentsByBorrowersForTaxesAndInsurance	3035000	usd
CY2024	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-2325998000	usd
CY2023	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	1460644000	usd
CY2022	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	817855000	usd
CY2024	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	1400453000	usd
CY2023	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	296684000	usd
CY2022	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	-1406844000	usd
CY2023Q3	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	980649000	usd
CY2022Q3	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	683965000	usd
CY2021Q3	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	2090809000	usd
CY2024Q3	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	2381102000	usd
CY2023Q3	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	980649000	usd
CY2022Q3	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	683965000	usd
CY2024	wfsl	Non Covered Real Estate Acquired Through Foreclosure NonCoveredRealEstateAcquiredThroughForeclosure	681000	usd
CY2023	wfsl	Non Covered Real Estate Acquired Through Foreclosure NonCoveredRealEstateAcquiredThroughForeclosure	121000	usd
CY2022	wfsl	Non Covered Real Estate Acquired Through Foreclosure NonCoveredRealEstateAcquiredThroughForeclosure	73000	usd
CY2024	us-gaap	Fair Value Of Assets Acquired FairValueOfAssetsAcquired	0	usd
CY2023	us-gaap	Fair Value Of Assets Acquired FairValueOfAssetsAcquired	0	usd
CY2022	us-gaap	Fair Value Of Assets Acquired FairValueOfAssetsAcquired	577000	usd
CY2024Q3	us-gaap	Dividends Payable Current And Noncurrent DividendsPayableCurrentAndNoncurrent	3656000	usd
CY2023Q3	us-gaap	Dividends Payable Current And Noncurrent DividendsPayableCurrentAndNoncurrent	3656000	usd
CY2022Q3	us-gaap	Dividends Payable Current And Noncurrent DividendsPayableCurrentAndNoncurrent	3656000	usd
CY2024	us-gaap	Interest Paid Net InterestPaidNet	739076000	usd
CY2023	us-gaap	Interest Paid Net InterestPaidNet	364386000	usd
CY2022	us-gaap	Interest Paid Net InterestPaidNet	65175000	usd
CY2024	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	20283000	usd
CY2023	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	61245000	usd
CY2022	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	35098000	usd
CY2024	us-gaap	Noncash Or Part Noncash Acquisition Value Of Assets Acquired1 NoncashOrPartNoncashAcquisitionValueOfAssetsAcquired1	7677177000	usd
CY2023	us-gaap	Noncash Or Part Noncash Acquisition Value Of Assets Acquired1 NoncashOrPartNoncashAcquisitionValueOfAssetsAcquired1	0	usd
CY2022	us-gaap	Noncash Or Part Noncash Acquisition Value Of Assets Acquired1 NoncashOrPartNoncashAcquisitionValueOfAssetsAcquired1	0	usd
CY2024	us-gaap	Noncash Or Part Noncash Acquisition Value Of Liabilities Assumed1 NoncashOrPartNoncashAcquisitionValueOfLiabilitiesAssumed1	7316380000	usd
CY2023	us-gaap	Noncash Or Part Noncash Acquisition Value Of Liabilities Assumed1 NoncashOrPartNoncashAcquisitionValueOfLiabilitiesAssumed1	0	usd
CY2022	us-gaap	Noncash Or Part Noncash Acquisition Value Of Liabilities Assumed1 NoncashOrPartNoncashAcquisitionValueOfLiabilitiesAssumed1	0	usd
CY2024	us-gaap	Noncash Or Part Noncash Acquisition Net Nonmonetary Assets Acquired Liabilities Assumed1 NoncashOrPartNoncashAcquisitionNetNonmonetaryAssetsAcquiredLiabilitiesAssumed1	360797000	usd
CY2023	us-gaap	Noncash Or Part Noncash Acquisition Net Nonmonetary Assets Acquired Liabilities Assumed1 NoncashOrPartNoncashAcquisitionNetNonmonetaryAssetsAcquiredLiabilitiesAssumed1	0	usd
CY2022	us-gaap	Noncash Or Part Noncash Acquisition Net Nonmonetary Assets Acquired Liabilities Assumed1 NoncashOrPartNoncashAcquisitionNetNonmonetaryAssetsAcquiredLiabilitiesAssumed1	0	usd
CY2024Q3	wfsl	Number Of Offices NumberOfOffices	210	branch
CY2024	us-gaap	Fiscal Period FiscalPeriod	The Company's fiscal year end is September 30. All references to 2024, 2023 and 2022 represent balances as of September 30, 2024, September 30, 2023, and September 30, 2022, or activity for the fiscal years then ended.
CY2021Q1	us-gaap	Preferred Stock Dividend Rate Percentage PreferredStockDividendRatePercentage	0.04875
CY2021Q1	us-gaap	Proceeds From Issuance Of Preferred Stock And Preference Stock ProceedsFromIssuanceOfPreferredStockAndPreferenceStock	293325000	usd
CY2024Q3	us-gaap	Cash Collateral For Borrowed Securities CashCollateralForBorrowedSecurities	168200000	usd
CY2023Q3	us-gaap	Cash Collateral For Borrowed Securities CashCollateralForBorrowedSecurities	326750000	usd
CY2024Q3	us-gaap	Equity Securities Fv Ni Current And Noncurrent EquitySecuritiesFvNiCurrentAndNoncurrent	36317000	usd
CY2024Q3	us-gaap	Fair Value Investments Entities That Calculate Net Asset Value Per Share Unfunded Committments FairValueInvestmentsEntitiesThatCalculateNetAssetValuePerShareUnfundedCommittments	3280000	usd
CY2024	wfsl	Financing Receivable Days Past Grace Period To Initiate Contact To Cure Deficiency FinancingReceivableDaysPastGracePeriodToInitiateContactToCureDeficiency	P30D
CY2024	wfsl	Financing Receivable Minimum Days Past Due To Begin Foreclosure Proceedings FinancingReceivableMinimumDaysPastDueToBeginForeclosureProceedings	P90D
CY2024	wfsl	Number Of Portfolio Segments For Loans Held For Investment NumberOfPortfolioSegmentsForLoansHeldForInvestment	2	portfoliosegment
CY2024	wfsl	Number Of Classes Disaggregating The Commercial Loan Portfolio NumberOfClassesDisaggregatingTheCommercialLoanPortfolio	5	classofportfoliosegment
CY2024	wfsl	Number Of Classes Disaggregating The Consumer Loan Portfolio NumberOfClassesDisaggregatingTheConsumerLoanPortfolio	5	classofportfoliosegment
CY2024	wfsl	Financing Receivable Minimum Days Past Due To Stop Accrual Of Interest FinancingReceivableMinimumDaysPastDueToStopAccrualOfInterest	P90D
CY2024	wfsl	Financing Receivable Minimum Days Past Due To Stop Accrual Of Interest FinancingReceivableMinimumDaysPastDueToStopAccrualOfInterest	P90D
CY2024	wfsl	Loans Receivable Number Of Consecutive Payments Required To Return Loan To Accrual Status LoansReceivableNumberOfConsecutivePaymentsRequiredToReturnLoanToAccrualStatus	6	payment
CY2024	wfsl	Loans Receivable Number Of Consecutive Payments Required To Return Loan To Accrual Status LoansReceivableNumberOfConsecutivePaymentsRequiredToReturnLoanToAccrualStatus	6	payment
CY2023	us-gaap	Goodwill And Intangible Asset Impairment GoodwillAndIntangibleAssetImpairment	0	usd
CY2024	us-gaap	Goodwill And Intangible Asset Impairment GoodwillAndIntangibleAssetImpairment	0	usd
CY2022	us-gaap	Goodwill And Intangible Asset Impairment GoodwillAndIntangibleAssetImpairment	0	usd
CY2022Q3	us-gaap	Goodwill Goodwill	303457000	usd
CY2022Q3	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	5552000	usd
CY2022Q3	us-gaap	Intangible Assets Net Including Goodwill IntangibleAssetsNetIncludingGoodwill	309009000	usd
CY2023	us-gaap	Goodwill Acquired During Period GoodwillAcquiredDuringPeriod	1293000	usd
CY2023	us-gaap	Finitelived Intangible Assets Acquired1 FinitelivedIntangibleAssetsAcquired1	1297000	usd
CY2023	wfsl	Goodwill And Intangible Assets Acquired During Period GoodwillAndIntangibleAssetsAcquiredDuringPeriod	2590000	usd
CY2023	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	980000	usd
CY2023	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	980000	usd
CY2023Q3	us-gaap	Goodwill Goodwill	304750000	usd
CY2023Q3	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	5869000	usd
CY2023Q3	us-gaap	Intangible Assets Net Including Goodwill IntangibleAssetsNetIncludingGoodwill	310619000	usd
CY2024	us-gaap	Goodwill Acquired During Period GoodwillAcquiredDuringPeriod	106610000	usd
CY2024	us-gaap	Finitelived Intangible Assets Acquired1 FinitelivedIntangibleAssetsAcquired1	38939000	usd
CY2024	wfsl	Goodwill And Intangible Assets Acquired During Period GoodwillAndIntangibleAssetsAcquiredDuringPeriod	145549000	usd
CY2024	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	7743000	usd
CY2024	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	7743000	usd
CY2024Q3	us-gaap	Goodwill Goodwill	411360000	usd
CY2024Q3	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	37065000	usd
CY2024Q3	us-gaap	Intangible Assets Net Including Goodwill IntangibleAssetsNetIncludingGoodwill	448425000	usd
CY2024Q3	us-gaap	Finite Lived Intangible Assets Amortization Expense Next Twelve Months FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths	9862000	usd
CY2024Q3	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Two FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo	7317000	usd
CY2024Q3	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Three FiniteLivedIntangibleAssetsAmortizationExpenseYearThree	5567000	usd
CY2024Q3	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Four FiniteLivedIntangibleAssetsAmortizationExpenseYearFour	5205000	usd
CY2024Q3	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Five FiniteLivedIntangibleAssetsAmortizationExpenseYearFive	5112000	usd
CY2024Q3	wfsl	Number Of Reportable Business Segments NumberOfReportableBusinessSegments	1	segment
CY2020Q4	wfsl	Consumer Financial Protection Bureau Consent Order Civil Money Penalty ConsumerFinancialProtectionBureauConsentOrderCivilMoneyPenalty	200000	usd
CY2024Q1	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	64311764	shares
CY2024Q3	us-gaap	Debt Securities Available For Sale Amortized Cost Excluding Accrued Interest Before Allowance For Credit Loss DebtSecuritiesAvailableForSaleAmortizedCostExcludingAccruedInterestBeforeAllowanceForCreditLoss	2616877000	usd
CY2024Q3	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Gain Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax	10531000	usd
CY2024Q3	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Loss Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax	54699000	usd
CY2024Q3	us-gaap	Debt Securities Available For Sale Excluding Accrued Interest DebtSecuritiesAvailableForSaleExcludingAccruedInterest	2572709000	usd
CY2024Q3	wfsl	Available For Sale Securities Yield AvailableForSaleSecuritiesYield	0.0487
CY2024Q3	us-gaap	Debt Securities Held To Maturity Excluding Accrued Interest Before Allowance For Credit Loss DebtSecuritiesHeldToMaturityExcludingAccruedInterestBeforeAllowanceForCreditLoss	436972000	usd
CY2024Q3	us-gaap	Held To Maturity Securities Accumulated Unrecognized Holding Gain HeldToMaturitySecuritiesAccumulatedUnrecognizedHoldingGain	913000	usd
CY2024Q3	us-gaap	Held To Maturity Securities Accumulated Unrecognized Holding Loss HeldToMaturitySecuritiesAccumulatedUnrecognizedHoldingLoss	36839000	usd
CY2024Q3	us-gaap	Held To Maturity Securities Fair Value HeldToMaturitySecuritiesFairValue	401046000	usd
CY2024Q3	wfsl	Held To Maturity Securities Yield HeldToMaturitySecuritiesYield	0.0318
CY2024Q3	us-gaap	Investments Investments	3053849000	usd
CY2024Q3	wfsl	Gross Unrealized Gains On Investments GrossUnrealizedGainsOnInvestments	11444000	usd
CY2024Q3	wfsl	Gross Unrealized Losses On Investments GrossUnrealizedLossesOnInvestments	91538000	usd
CY2024Q3	us-gaap	Investments Fair Value Disclosure InvestmentsFairValueDisclosure	2973755000	usd
CY2024Q3	wfsl	Yield Yield	0.0463
CY2023Q3	us-gaap	Debt Securities Available For Sale Amortized Cost Excluding Accrued Interest Before Allowance For Credit Loss DebtSecuritiesAvailableForSaleAmortizedCostExcludingAccruedInterestBeforeAllowanceForCreditLoss	2118616000	usd
CY2023Q3	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Gain Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax	2910000	usd
CY2023Q3	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Loss Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax	126429000	usd
CY2023Q3	us-gaap	Debt Securities Available For Sale Excluding Accrued Interest DebtSecuritiesAvailableForSaleExcludingAccruedInterest	1995097000	usd
CY2023Q3	wfsl	Available For Sale Securities Yield AvailableForSaleSecuritiesYield	0.0464
CY2023Q3	us-gaap	Debt Securities Held To Maturity Excluding Accrued Interest Before Allowance For Credit Loss DebtSecuritiesHeldToMaturityExcludingAccruedInterestBeforeAllowanceForCreditLoss	423586000	usd
CY2023Q3	us-gaap	Held To Maturity Securities Accumulated Unrecognized Holding Gain HeldToMaturitySecuritiesAccumulatedUnrecognizedHoldingGain	0	usd
CY2023Q3	us-gaap	Held To Maturity Securities Accumulated Unrecognized Holding Loss HeldToMaturitySecuritiesAccumulatedUnrecognizedHoldingLoss	68398000	usd
CY2023Q3	us-gaap	Held To Maturity Securities Fair Value HeldToMaturitySecuritiesFairValue	355188000	usd
CY2023Q3	wfsl	Held To Maturity Securities Yield Without A Single Maturity Date HeldToMaturitySecuritiesYieldWithoutASingleMaturityDate	0.0288
CY2023Q3	us-gaap	Investments Investments	2542202000	usd
CY2023Q3	wfsl	Gross Unrealized Gains On Investments GrossUnrealizedGainsOnInvestments	2910000	usd
CY2023Q3	wfsl	Gross Unrealized Losses On Investments GrossUnrealizedLossesOnInvestments	194827000	usd
CY2023Q3	us-gaap	Investments Fair Value Disclosure InvestmentsFairValueDisclosure	2350285000	usd
CY2023Q3	wfsl	Yield Yield	0.0435
CY2024	us-gaap	Payments To Acquire Available For Sale Securities Debt PaymentsToAcquireAvailableForSaleSecuritiesDebt	549159000	usd
CY2024	us-gaap	Payments To Acquire Held To Maturity Securities PaymentsToAcquireHeldToMaturitySecurities	47092000	usd
CY2024	us-gaap	Proceeds From Sale Of Available For Sale Securities Debt ProceedsFromSaleOfAvailableForSaleSecuritiesDebt	182682000	usd
CY2024	us-gaap	Proceeds From Sale Of Held To Maturity Securities ProceedsFromSaleOfHeldToMaturitySecurities	0	usd
CY2024	wfsl	Term Of Contractual Due Dates Of Substantially All Mortgage Backed Securities TermOfContractualDueDatesOfSubstantiallyAllMortgageBackedSecurities	P25Y
CY2024Q3	us-gaap	Debt Securities Available For Sale Accrued Interest After Allowance For Credit Loss DebtSecuritiesAvailableForSaleAccruedInterestAfterAllowanceForCreditLoss	9311000	usd
CY2023Q3	us-gaap	Debt Securities Available For Sale Accrued Interest After Allowance For Credit Loss DebtSecuritiesAvailableForSaleAccruedInterestAfterAllowanceForCreditLoss	8641000	usd
CY2024Q3	us-gaap	Debt Securities Held To Maturity Accrued Interest After Allowance For Credit Loss DebtSecuritiesHeldToMaturityAccruedInterestAfterAllowanceForCreditLoss	1154000	usd
CY2023Q3	us-gaap	Debt Securities Held To Maturity Accrued Interest After Allowance For Credit Loss DebtSecuritiesHeldToMaturityAccruedInterestAfterAllowanceForCreditLoss	1013000	usd
CY2024Q3	wfsl	Debt Securities Unrealized Loss Position Number Of Positions DebtSecuritiesUnrealizedLossPositionNumberOfPositions	209	security
CY2023Q3	wfsl	Debt Securities Unrealized Loss Position Number Of Positions DebtSecuritiesUnrealizedLossPositionNumberOfPositions	232	security
CY2024Q3	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position Less Than12 Months Accumulated Loss DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss	429000	usd
CY2024Q3	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position Less Than12 Months DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12Months	239441000	usd
CY2024Q3	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position12 Months Or Longer Accumulated Loss DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss	54270000	usd
CY2024Q3	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position12 Months Or Longer DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLonger	1125962000	usd
CY2024Q3	us-gaap	Debt Securities Available For Sale Unrealized Loss Position Accumulated Loss DebtSecuritiesAvailableForSaleUnrealizedLossPositionAccumulatedLoss	54699000	usd
CY2024Q3	us-gaap	Debt Securities Available For Sale Unrealized Loss Position DebtSecuritiesAvailableForSaleUnrealizedLossPosition	1365403000	usd
CY2024Q3	us-gaap	Held To Maturity Securities Continuous Unrealized Loss Position Less Than12 Months Accumulated Loss HeldToMaturitySecuritiesContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss	0	usd
CY2024Q3	us-gaap	Held To Maturity Securities Continuous Unrealized Loss Position Less Than Twelve Months Fair Value HeldToMaturitySecuritiesContinuousUnrealizedLossPositionLessThanTwelveMonthsFairValue	0	usd
CY2024Q3	us-gaap	Held To Maturity Securities Continuous Unrealized Loss Position12 Months Or Longer Accumulated Loss HeldToMaturitySecuritiesContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss	36839000	usd
CY2024Q3	us-gaap	Held To Maturity Securities Continuous Unrealized Loss Position Twelve Months Or Longer Fair Value HeldToMaturitySecuritiesContinuousUnrealizedLossPositionTwelveMonthsOrLongerFairValue	348573000	usd
CY2024Q3	us-gaap	Held To Maturity Securities Continuous Unrealized Loss Position Accumulated Loss HeldToMaturitySecuritiesContinuousUnrealizedLossPositionAccumulatedLoss	36839000	usd
CY2024Q3	us-gaap	Held To Maturity Securities Continuous Unrealized Loss Position Fair Value HeldToMaturitySecuritiesContinuousUnrealizedLossPositionFairValue	348573000	usd
CY2024Q3	wfsl	Debt Securities Continuous Unrealized Loss Position Less Than12 Months Accumulated Loss DebtSecuritiesContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss	429000	usd
CY2024Q3	wfsl	Debt Securities Continuous Unrealized Loss Position Less Than12 Months Fair Value DebtSecuritiesContinuousUnrealizedLossPositionLessThan12MonthsFairValue	239441000	usd
CY2024Q3	wfsl	Debt Securities Continuous Unrealized Loss Position12 Months Or Longer Accumulated Loss DebtSecuritiesContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss	91109000	usd
CY2024Q3	wfsl	Debt Securities Continuous Unrealized Loss Position12 Months Or Longer Fair Value DebtSecuritiesContinuousUnrealizedLossPosition12MonthsOrLongerFairValue	1474535000	usd
CY2024Q3	wfsl	Debt Securities Unrealized Loss Position Accumulated Loss DebtSecuritiesUnrealizedLossPositionAccumulatedLoss	91538000	usd
CY2024Q3	wfsl	Debt Securities Unrealized Loss Position Fair Value DebtSecuritiesUnrealizedLossPositionFairValue	1713976000	usd
CY2023Q3	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position Less Than12 Months Accumulated Loss DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss	4185000	usd
CY2023Q3	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position Less Than12 Months DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12Months	243952000	usd
CY2023Q3	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position12 Months Or Longer Accumulated Loss DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss	122244000	usd
CY2023Q3	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position12 Months Or Longer DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLonger	1393013000	usd
CY2023Q3	us-gaap	Debt Securities Available For Sale Unrealized Loss Position Accumulated Loss DebtSecuritiesAvailableForSaleUnrealizedLossPositionAccumulatedLoss	126429000	usd
CY2023Q3	us-gaap	Debt Securities Available For Sale Unrealized Loss Position DebtSecuritiesAvailableForSaleUnrealizedLossPosition	1636965000	usd
CY2023Q3	us-gaap	Held To Maturity Securities Continuous Unrealized Loss Position Less Than12 Months Accumulated Loss HeldToMaturitySecuritiesContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss	15000	usd
CY2023Q3	us-gaap	Held To Maturity Securities Continuous Unrealized Loss Position Less Than Twelve Months Fair Value HeldToMaturitySecuritiesContinuousUnrealizedLossPositionLessThanTwelveMonthsFairValue	1424000	usd
CY2023Q3	us-gaap	Held To Maturity Securities Continuous Unrealized Loss Position12 Months Or Longer Accumulated Loss HeldToMaturitySecuritiesContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss	68383000	usd
CY2023Q3	us-gaap	Held To Maturity Securities Continuous Unrealized Loss Position Twelve Months Or Longer Fair Value HeldToMaturitySecuritiesContinuousUnrealizedLossPositionTwelveMonthsOrLongerFairValue	353764000	usd
CY2023Q3	us-gaap	Held To Maturity Securities Continuous Unrealized Loss Position Accumulated Loss HeldToMaturitySecuritiesContinuousUnrealizedLossPositionAccumulatedLoss	68398000	usd
CY2023Q3	us-gaap	Held To Maturity Securities Continuous Unrealized Loss Position Fair Value HeldToMaturitySecuritiesContinuousUnrealizedLossPositionFairValue	355188000	usd
CY2023Q3	wfsl	Debt Securities Continuous Unrealized Loss Position Less Than12 Months Accumulated Loss DebtSecuritiesContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss	4200000	usd
CY2023Q3	wfsl	Debt Securities Continuous Unrealized Loss Position Less Than12 Months Fair Value DebtSecuritiesContinuousUnrealizedLossPositionLessThan12MonthsFairValue	245376000	usd
CY2023Q3	wfsl	Debt Securities Continuous Unrealized Loss Position12 Months Or Longer Accumulated Loss DebtSecuritiesContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss	190627000	usd
CY2023Q3	wfsl	Debt Securities Continuous Unrealized Loss Position12 Months Or Longer Fair Value DebtSecuritiesContinuousUnrealizedLossPosition12MonthsOrLongerFairValue	1746777000	usd
CY2023Q3	wfsl	Debt Securities Unrealized Loss Position Accumulated Loss DebtSecuritiesUnrealizedLossPositionAccumulatedLoss	194827000	usd
CY2023Q3	wfsl	Debt Securities Unrealized Loss Position Fair Value DebtSecuritiesUnrealizedLossPositionFairValue	1992153000	usd
CY2024	wfsl	Number Of Portfolio Segments For Loans Held For Investment NumberOfPortfolioSegmentsForLoansHeldForInvestment	2	portfoliosegment
CY2024Q3	us-gaap	Financing Receivable Excluding Accrued Interest Before Allowance For Credit Loss Fee And Loan In Process FinancingReceivableExcludingAccruedInterestBeforeAllowanceForCreditLossFeeAndLoanInProcess	22359396000	usd
CY2024Q3	wfsl	Financing Receivable Ratio Of Loan Type To All Loans FinancingReceivableRatioOfLoanTypeToAllLoans	1
CY2023Q3	us-gaap	Financing Receivable Excluding Accrued Interest Before Allowance For Credit Loss Fee And Loan In Process FinancingReceivableExcludingAccruedInterestBeforeAllowanceForCreditLossFeeAndLoanInProcess	19648504000	usd
CY2023Q3	wfsl	Financing Receivable Ratio Of Loan Type To All Loans FinancingReceivableRatioOfLoanTypeToAllLoans	1
CY2024Q3	us-gaap	Financing Receivable Allowance For Credit Loss Excluding Accrued Interest FinancingReceivableAllowanceForCreditLossExcludingAccruedInterest	203753000	usd
CY2023Q3	us-gaap	Financing Receivable Allowance For Credit Loss Excluding Accrued Interest FinancingReceivableAllowanceForCreditLossExcludingAccruedInterest	177207000	usd
CY2024Q3	us-gaap	Financing Receivable Loan In Process FinancingReceivableLoanInProcess	1009798000	usd
CY2023Q3	us-gaap	Financing Receivable Loan In Process FinancingReceivableLoanInProcess	1895940000	usd
CY2024Q3	us-gaap	Financing Receivable Unamortized Loan Commitment Origination Fee And Premium Discount FinancingReceivableUnamortizedLoanCommitmentOriginationFeeAndPremiumDiscount	-229491000	usd
CY2023Q3	us-gaap	Financing Receivable Unamortized Loan Commitment Origination Fee And Premium Discount FinancingReceivableUnamortizedLoanCommitmentOriginationFeeAndPremiumDiscount	-98807000	usd
CY2024Q3	wfsl	Financing Receivable Charges To Allowance Loans In Process And Deferred Fees FinancingReceivableChargesToAllowanceLoansInProcessAndDeferredFees	1443042000	usd
CY2023Q3	wfsl	Financing Receivable Charges To Allowance Loans In Process And Deferred Fees FinancingReceivableChargesToAllowanceLoansInProcessAndDeferredFees	2171954000	usd
CY2024Q3	us-gaap	Financing Receivable Excluding Accrued Interest After Allowance For Credit Loss FinancingReceivableExcludingAccruedInterestAfterAllowanceForCreditLoss	20916354000	usd
CY2023Q3	us-gaap	Financing Receivable Excluding Accrued Interest After Allowance For Credit Loss FinancingReceivableExcludingAccruedInterestAfterAllowanceForCreditLoss	17476550000	usd
CY2024Q3	us-gaap	Financing Receivable Accrued Interest After Allowance For Credit Loss FinancingReceivableAccruedInterestAfterAllowanceForCreditLoss	92362000	usd
CY2023Q3	us-gaap	Financing Receivable Accrued Interest After Allowance For Credit Loss FinancingReceivableAccruedInterestAfterAllowanceForCreditLoss	77349000	usd
CY2024Q3	us-gaap	Federal Home Loan Bank Advances General Debt Obligations Disclosures Collateral Pledged1 FederalHomeLoanBankAdvancesGeneralDebtObligationsDisclosuresCollateralPledged1	16957014000	usd
CY2023Q3	us-gaap	Federal Home Loan Bank Advances General Debt Obligations Disclosures Collateral Pledged1 FederalHomeLoanBankAdvancesGeneralDebtObligationsDisclosuresCollateralPledged1	8941201000	usd
CY2024Q3	us-gaap	Loans Receivable With Fixed Rates Of Interest1 LoansReceivableWithFixedRatesOfInterest1	11340860000	usd
CY2024Q3	wfsl	Financing Receivable With Fixed Rates Of Interest Percent Of Gross FinancingReceivableWithFixedRatesOfInterestPercentOfGross	0.537
CY2024Q3	us-gaap	Loans Receivable With Variable Rates Of Interest1 LoansReceivableWithVariableRatesOfInterest1	9779247000	usd
CY2024Q3	wfsl	Financing Receivable With Variable Rates Of Interest Percent Of Gross FinancingReceivableWithVariableRatesOfInterestPercentOfGross	0.463
CY2024Q3	wfsl	Financing Receivable Nonaccrual Percent Of Total Loans FinancingReceivableNonaccrualPercentOfTotalLoans	0.0033
CY2023Q3	wfsl	Financing Receivable Nonaccrual Percent Of Total Loans FinancingReceivableNonaccrualPercentOfTotalLoans	0.0029
CY2024Q3	wfsl	Financing Receivable Net Of Charge Offs And Loans In Process FinancingReceivableNetOfChargeOffsAndLoansInProcess	21120107000	usd
CY2024Q3	us-gaap	Financing Receivable Percent Past Due1 FinancingReceivablePercentPastDue1	0.0025
CY2023Q3	wfsl	Financing Receivable Net Of Charge Offs And Loans In Process FinancingReceivableNetOfChargeOffsAndLoansInProcess	17653757000	usd
CY2023Q3	us-gaap	Financing Receivable Percent Past Due1 FinancingReceivablePercentPastDue1	0.0036
CY2024	us-gaap	Financing Receivable Excluding Accrued Interest Modified Period FinancingReceivableExcludingAccruedInterestModifiedPeriod	104492000	usd
CY2023Q3	us-gaap	Financing Receivable Allowance For Credit Loss Excluding Accrued Interest FinancingReceivableAllowanceForCreditLossExcludingAccruedInterest	177207000	usd
CY2024	us-gaap	Financing Receivable Excluding Accrued Interest Allowance For Credit Loss Writeoff FinancingReceivableExcludingAccruedInterestAllowanceForCreditLossWriteoff	3625000	usd
CY2024	us-gaap	Financing Receivable Excluding Accrued Interest Allowance For Credit Loss Recovery FinancingReceivableExcludingAccruedInterestAllowanceForCreditLossRecovery	2269000	usd
CY2024	wfsl	Financing Receivable Allowance For Credit Losses Excluding Accrued Interest Provision And Transfers FinancingReceivableAllowanceForCreditLossesExcludingAccruedInterestProvisionAndTransfers	27902000	usd
CY2024Q3	us-gaap	Financing Receivable Allowance For Credit Loss Excluding Accrued Interest FinancingReceivableAllowanceForCreditLossExcludingAccruedInterest	203753000	usd
CY2022Q3	us-gaap	Financing Receivable Allowance For Credit Loss Excluding Accrued Interest FinancingReceivableAllowanceForCreditLossExcludingAccruedInterest	172808000	usd
CY2023	us-gaap	Financing Receivable Excluding Accrued Interest Allowance For Credit Loss Writeoff FinancingReceivableExcludingAccruedInterestAllowanceForCreditLossWriteoff	46470000	usd
CY2023	us-gaap	Financing Receivable Excluding Accrued Interest Allowance For Credit Loss Recovery FinancingReceivableExcludingAccruedInterestAllowanceForCreditLossRecovery	1369000	usd
CY2023	wfsl	Financing Receivable Allowance For Credit Losses Excluding Accrued Interest Provision And Transfers FinancingReceivableAllowanceForCreditLossesExcludingAccruedInterestProvisionAndTransfers	49500000	usd
CY2023Q3	us-gaap	Financing Receivable Allowance For Credit Loss Excluding Accrued Interest FinancingReceivableAllowanceForCreditLossExcludingAccruedInterest	177207000	usd
CY2024	us-gaap	Financing Receivable Excluding Accrued Interest Credit Loss Expense Reversal FinancingReceivableExcludingAccruedInterestCreditLossExpenseReversal	17500000	usd
CY2023	us-gaap	Financing Receivable Excluding Accrued Interest Credit Loss Expense Reversal FinancingReceivableExcludingAccruedInterestCreditLossExpenseReversal	41500000	usd
CY2024	us-gaap	Financing Receivable Excluding Accrued Interest Allowance For Credit Loss Writeoff After Recovery FinancingReceivableExcludingAccruedInterestAllowanceForCreditLossWriteoffAfterRecovery	1356000	usd
CY2023	us-gaap	Financing Receivable Excluding Accrued Interest Allowance For Credit Loss Writeoff After Recovery FinancingReceivableExcludingAccruedInterestAllowanceForCreditLossWriteoffAfterRecovery	45101000	usd
CY2024Q3	us-gaap	Financing Receivable Allowance For Credit Loss Excluding Accrued Interest FinancingReceivableAllowanceForCreditLossExcludingAccruedInterest	203753000	usd
CY2024Q3	us-gaap	Financing Receivable Excluding Accrued Interest Before Allowance For Credit Loss FinancingReceivableExcludingAccruedInterestBeforeAllowanceForCreditLoss	21120107000	usd
CY2023Q3	us-gaap	Financing Receivable Excluding Accrued Interest Before Allowance For Credit Loss FinancingReceivableExcludingAccruedInterestBeforeAllowanceForCreditLoss	17653757000	usd
CY2024Q3	us-gaap	Hedged Liability Fair Value Hedge HedgedLiabilityFairValueHedge	7287540000	usd
CY2024Q3	us-gaap	Hedged Asset Fair Value Hedge Cumulative Increase Decrease HedgedAssetFairValueHedgeCumulativeIncreaseDecrease	20005000	usd
CY2024Q3	us-gaap	Hedged Liability Fair Value Hedge HedgedLiabilityFairValueHedge	7287540000	usd
CY2024Q3	us-gaap	Hedged Asset Fair Value Hedge Cumulative Increase Decrease HedgedAssetFairValueHedgeCumulativeIncreaseDecrease	20005000	usd
CY2023Q3	us-gaap	Hedged Liability Fair Value Hedge HedgedLiabilityFairValueHedge	1816870000	usd
CY2023Q3	us-gaap	Hedged Asset Fair Value Hedge Cumulative Increase Decrease HedgedAssetFairValueHedgeCumulativeIncreaseDecrease	-48865000	usd
CY2023Q3	us-gaap	Hedged Liability Fair Value Hedge HedgedLiabilityFairValueHedge	1816870000	usd
CY2023Q3	us-gaap	Hedged Asset Fair Value Hedge Cumulative Increase Decrease HedgedAssetFairValueHedgeCumulativeIncreaseDecrease	-48865000	usd
CY2024	us-gaap	Interest And Fee Income Loans And Leases InterestAndFeeIncomeLoansAndLeases	1165849000	usd
CY2024	us-gaap	Interest Expense Borrowings InterestExpenseBorrowings	178444000	usd
CY2023	us-gaap	Interest And Fee Income Loans And Leases InterestAndFeeIncomeLoansAndLeases	900068000	usd
CY2023	us-gaap	Interest Expense Borrowings InterestExpenseBorrowings	115488000	usd
CY2024	wfsl	Revenue From Contract With Customer Percentage RevenueFromContractWithCustomerPercentage	0.032
CY2023	wfsl	Revenue From Contract With Customer Percentage RevenueFromContractWithCustomerPercentage	0.039
CY2024Q3	us-gaap	Accrued Investment Income Receivable AccruedInvestmentIncomeReceivable	102827000	usd
CY2023Q3	us-gaap	Accrued Investment Income Receivable AccruedInvestmentIncomeReceivable	87003000	usd
CY2024Q3	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	422384000	usd
CY2023Q3	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	392279000	usd
CY2024Q3	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	174483000	usd
CY2023Q3	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	155268000	usd
CY2024Q3	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	247901000	usd
CY2023Q3	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	237011000	usd
CY2024Q3	us-gaap	Noninterest Bearing Domestic Deposit Checking NoninterestBearingDomesticDepositChecking	2500467000	usd
CY2024Q3	wfsl	Percentage Of Non Interest Bearing Domestic Deposits To Deposits Checking PercentageOfNonInterestBearingDomesticDepositsToDepositsChecking	0.117
CY2023Q3	us-gaap	Noninterest Bearing Domestic Deposit Checking NoninterestBearingDomesticDepositChecking	2706448000	usd
CY2023Q3	wfsl	Percentage Of Non Interest Bearing Domestic Deposits To Deposits Checking PercentageOfNonInterestBearingDomesticDepositsToDepositsChecking	0.168
CY2024Q3	us-gaap	Interest Bearing Domestic Deposit Checking InterestBearingDomesticDepositChecking	4486444000	usd
CY2024Q3	us-gaap	Percentage Of Interest Bearing Domestic Deposits To Deposits Checking PercentageOfInterestBearingDomesticDepositsToDepositsChecking	0.210
CY2024Q3	us-gaap	Weighted Average Rate Domestic Deposit Checking WeightedAverageRateDomesticDepositChecking	0.0289
CY2023Q3	us-gaap	Interest Bearing Domestic Deposit Checking InterestBearingDomesticDepositChecking	3882715000	usd
CY2023Q3	us-gaap	Percentage Of Interest Bearing Domestic Deposits To Deposits Checking PercentageOfInterestBearingDomesticDepositsToDepositsChecking	0.242
CY2023Q3	us-gaap	Weighted Average Rate Domestic Deposit Checking WeightedAverageRateDomesticDepositChecking	0.0228
CY2024Q3	us-gaap	Interest Bearing Domestic Deposit Savings InterestBearingDomesticDepositSavings	718560000	usd
CY2024Q3	us-gaap	Percentage Of Interest Bearing Domestic Deposits To Deposits Savings PercentageOfInterestBearingDomesticDepositsToDepositsSavings	0.034
CY2024Q3	us-gaap	Weighted Average Rate Domestic Deposit Savings WeightedAverageRateDomesticDepositSavings	0.0023
CY2023Q3	us-gaap	Interest Bearing Domestic Deposit Savings InterestBearingDomesticDepositSavings	817547000	usd
CY2023Q3	us-gaap	Percentage Of Interest Bearing Domestic Deposits To Deposits Savings PercentageOfInterestBearingDomesticDepositsToDepositsSavings	0.051
CY2023Q3	us-gaap	Weighted Average Rate Domestic Deposit Savings WeightedAverageRateDomesticDepositSavings	0.0021
CY2024Q3	us-gaap	Interest Bearing Domestic Deposit Money Market InterestBearingDomesticDepositMoneyMarket	4111714000	usd
CY2024Q3	us-gaap	Percentage Of Interest Bearing Domestic Deposits To Deposits Money Market PercentageOfInterestBearingDomesticDepositsToDepositsMoneyMarket	0.192
CY2024Q3	us-gaap	Weighted Average Rate Domestic Deposit Money Market WeightedAverageRateDomesticDepositMoneyMarket	0.0222
CY2023Q3	us-gaap	Interest Bearing Domestic Deposit Money Market InterestBearingDomesticDepositMoneyMarket	3358603000	usd
CY2023Q3	us-gaap	Percentage Of Interest Bearing Domestic Deposits To Deposits Money Market PercentageOfInterestBearingDomesticDepositsToDepositsMoneyMarket	0.209
CY2023Q3	us-gaap	Weighted Average Rate Domestic Deposit Money Market WeightedAverageRateDomesticDepositMoneyMarket	0.0148
CY2024Q3	us-gaap	Interest Bearing Domestic Deposit Time Deposits InterestBearingDomesticDepositTimeDeposits	9556785000	usd
CY2024Q3	us-gaap	Percentage Of Interest Bearing Domestic Deposits To Deposits Time Deposits PercentageOfInterestBearingDomesticDepositsToDepositsTimeDeposits	0.447
CY2024Q3	us-gaap	Weighted Average Rate Domestic Deposit Time Deposits WeightedAverageRateDomesticDepositTimeDeposits	0.0458
CY2023Q3	us-gaap	Interest Bearing Domestic Deposit Time Deposits InterestBearingDomesticDepositTimeDeposits	5305016000	usd
CY2023Q3	us-gaap	Percentage Of Interest Bearing Domestic Deposits To Deposits Time Deposits PercentageOfInterestBearingDomesticDepositsToDepositsTimeDeposits	0.330
CY2023Q3	us-gaap	Weighted Average Rate Domestic Deposit Time Deposits WeightedAverageRateDomesticDepositTimeDeposits	0.0377
CY2024Q3	us-gaap	Deposits Deposits	21373970000	usd
CY2024Q3	wfsl	Percentage Of Domestic Deposits To Deposits PercentageOfDomesticDepositsToDeposits	1
CY2024Q3	us-gaap	Weighted Average Rate Domestic Deposit WeightedAverageRateDomesticDeposit	0.0309
CY2023Q3	us-gaap	Deposits Deposits	16070329000	usd
CY2023Q3	wfsl	Percentage Of Domestic Deposits To Deposits PercentageOfDomesticDepositsToDeposits	1
CY2023Q3	us-gaap	Weighted Average Rate Domestic Deposit WeightedAverageRateDomesticDeposit	0.0212
CY2024Q3	wfsl	Time Deposits Less Than One Percent TimeDepositsLessThanOnePercent	82935000	usd
CY2023Q3	wfsl	Time Deposits Less Than One Percent TimeDepositsLessThanOnePercent	139525000	usd
CY2024Q3	wfsl	Time Deposits From One Percent To Less Than Two Percent TimeDepositsFromOnePercentToLessThanTwoPercent	2395000	usd
CY2023Q3	wfsl	Time Deposits From One Percent To Less Than Two Percent TimeDepositsFromOnePercentToLessThanTwoPercent	64262000	usd
CY2024Q3	wfsl	Time Deposits From Two Percent To Less Than Three Percent TimeDepositsFromTwoPercentToLessThanThreePercent	3340000	usd
CY2023Q3	wfsl	Time Deposits From Two Percent To Less Than Three Percent TimeDepositsFromTwoPercentToLessThanThreePercent	248973000	usd
CY2024Q3	wfsl	Time Deposits From Three Percent To Less Than Four Percent TimeDepositsFromThreePercentToLessThanFourPercent	345680000	usd
CY2023Q3	wfsl	Time Deposits From Three Percent To Less Than Four Percent TimeDepositsFromThreePercentToLessThanFourPercent	3884337000	usd
CY2024Q3	wfsl	Time Deposits From Four Percent To Less Than Five Percent TimeDepositsFromFourPercentToLessThanFivePercent	8244791000	usd
CY2023Q3	wfsl	Time Deposits From Four Percent To Less Than Five Percent TimeDepositsFromFourPercentToLessThanFivePercent	532153000	usd
CY2024Q3	wfsl	Time Deposits Five Percent And Higher TimeDepositsFivePercentAndHigher	877644000	usd
CY2023Q3	wfsl	Time Deposits Five Percent And Higher TimeDepositsFivePercentAndHigher	435766000	usd
CY2024Q3	us-gaap	Time Deposits TimeDeposits	9556785000	usd
CY2023Q3	us-gaap	Time Deposits TimeDeposits	5305016000	usd
CY2024Q3	wfsl	Time Deposit Maturities Three Months Or Less TimeDepositMaturitiesThreeMonthsOrLess	2923299000	usd
CY2023Q3	wfsl	Time Deposit Maturities Three Months Or Less TimeDepositMaturitiesThreeMonthsOrLess	2383793000	usd
CY2024Q3	wfsl	Time Deposit Maturities Three Months To Six Months TimeDepositMaturitiesThreeMonthsToSixMonths	3140278000	usd
CY2023Q3	wfsl	Time Deposit Maturities Three Months To Six Months TimeDepositMaturitiesThreeMonthsToSixMonths	1517379000	usd
CY2024Q3	wfsl	Time Deposit Maturities Six Months To Twelve Months TimeDepositMaturitiesSixMonthsToTwelveMonths	2543201000	usd
CY2023Q3	wfsl	Time Deposit Maturities Six Months To Twelve Months TimeDepositMaturitiesSixMonthsToTwelveMonths	732141000	usd
CY2024Q3	wfsl	Time Deposit Maturities After Twelve Months TimeDepositMaturitiesAfterTwelveMonths	950007000	usd
CY2023Q3	wfsl	Time Deposit Maturities After Twelve Months TimeDepositMaturitiesAfterTwelveMonths	671703000	usd
CY2024Q3	us-gaap	Time Deposits TimeDeposits	9556785000	usd
CY2023Q3	us-gaap	Time Deposits TimeDeposits	5305016000	usd
CY2024Q3	us-gaap	Deposit Liability Uninsured DepositLiabilityUninsured	5134192000	usd
CY2023Q3	us-gaap	Deposit Liability Uninsured DepositLiabilityUninsured	4124355000	usd
CY2024	us-gaap	Interest Expense Demand Deposit Accounts InterestExpenseDemandDepositAccounts	99917000	usd
CY2023	us-gaap	Interest Expense Demand Deposit Accounts InterestExpenseDemandDepositAccounts	70396000	usd
CY2022	us-gaap	Interest Expense Demand Deposit Accounts InterestExpenseDemandDepositAccounts	10086000	usd
CY2024	us-gaap	Interest Expense Savings Deposits InterestExpenseSavingsDeposits	3952000	usd
CY2023	us-gaap	Interest Expense Savings Deposits InterestExpenseSavingsDeposits	1715000	usd
CY2022	us-gaap	Interest Expense Savings Deposits InterestExpenseSavingsDeposits	1377000	usd
CY2024	us-gaap	Interest Expense Money Market Deposits InterestExpenseMoneyMarketDeposits	77993000	usd
CY2023	us-gaap	Interest Expense Money Market Deposits InterestExpenseMoneyMarketDeposits	47485000	usd
CY2022	us-gaap	Interest Expense Money Market Deposits InterestExpenseMoneyMarketDeposits	12423000	usd
CY2024	us-gaap	Interest Expense Time Deposits InterestExpenseTimeDeposits	351654000	usd
CY2023	us-gaap	Interest Expense Time Deposits InterestExpenseTimeDeposits	119255000	usd
CY2022	us-gaap	Interest Expense Time Deposits InterestExpenseTimeDeposits	19422000	usd
CY2024	us-gaap	Interest Expense Domestic Deposits InterestExpenseDomesticDeposits	533516000	usd
CY2023	us-gaap	Interest Expense Domestic Deposits InterestExpenseDomesticDeposits	238851000	usd
CY2022	us-gaap	Interest Expense Domestic Deposits InterestExpenseDomesticDeposits	43308000	usd
CY2024	us-gaap	Interest Expense Domestic Deposit Liabilities Withdrawal Penalties InterestExpenseDomesticDepositLiabilitiesWithdrawalPenalties	1082000	usd
CY2023	us-gaap	Interest Expense Domestic Deposit Liabilities Withdrawal Penalties InterestExpenseDomesticDepositLiabilitiesWithdrawalPenalties	1618000	usd
CY2022	us-gaap	Interest Expense Domestic Deposit Liabilities Withdrawal Penalties InterestExpenseDomesticDepositLiabilitiesWithdrawalPenalties	267000	usd
CY2024	us-gaap	Interest Expense Deposits InterestExpenseDeposits	532434000	usd
CY2023	us-gaap	Interest Expense Deposits InterestExpenseDeposits	237233000	usd
CY2022	us-gaap	Interest Expense Deposits InterestExpenseDeposits	43041000	usd
CY2024Q3	us-gaap	Weighted Average Rate Domestic Deposit WeightedAverageRateDomesticDeposit	0.0309
CY2023Q3	us-gaap	Weighted Average Rate Domestic Deposit WeightedAverageRateDomesticDeposit	0.0212
CY2022Q3	us-gaap	Weighted Average Rate Domestic Deposit WeightedAverageRateDomesticDeposit	0.0051
CY2024	us-gaap	Weighted Average Rate Interest Bearing Domestic Deposits Over Time WeightedAverageRateInterestBearingDomesticDepositsOverTime	0.0326
CY2023	us-gaap	Weighted Average Rate Interest Bearing Domestic Deposits Over Time WeightedAverageRateInterestBearingDomesticDepositsOverTime	0.0184
CY2022	us-gaap	Weighted Average Rate Interest Bearing Domestic Deposits Over Time WeightedAverageRateInterestBearingDomesticDepositsOverTime	0.0034
CY2024Q3	us-gaap	Other Long Term Debt OtherLongTermDebt	3267589000	usd
CY2023Q3	us-gaap	Other Long Term Debt OtherLongTermDebt	3650000000	usd
CY2024Q3	us-gaap	Federal Home Loan Bank Advances Maturities Summary Due Within One Year Of Balance Sheet Date FederalHomeLoanBankAdvancesMaturitiesSummaryDueWithinOneYearOfBalanceSheetDate	2099353000	usd
CY2023Q3	us-gaap	Federal Home Loan Bank Advances Maturities Summary Due Within One Year Of Balance Sheet Date FederalHomeLoanBankAdvancesMaturitiesSummaryDueWithinOneYearOfBalanceSheetDate	2900000000	usd
CY2024Q3	wfsl	Federal Home Loan Bank Advances Maturities Summary Due From One Year To Three Years Of Balance Sheet Date FederalHomeLoanBankAdvancesMaturitiesSummaryDueFromOneYearToThreeYearsOfBalanceSheetDate	93354000	usd
CY2023Q3	wfsl	Federal Home Loan Bank Advances Maturities Summary Due From One Year To Three Years Of Balance Sheet Date FederalHomeLoanBankAdvancesMaturitiesSummaryDueFromOneYearToThreeYearsOfBalanceSheetDate	0	usd
CY2024Q3	wfsl	Federal Home Loan Bank Advances Maturities Summary Duefrom Three Yearsto Five Yearsof Balance Sheet Date FederalHomeLoanBankAdvancesMaturitiesSummaryDuefromThreeYearstoFiveYearsofBalanceSheetDate	167000	usd
CY2023Q3	wfsl	Federal Home Loan Bank Advances Maturities Summary Duefrom Three Yearsto Five Yearsof Balance Sheet Date FederalHomeLoanBankAdvancesMaturitiesSummaryDuefromThreeYearstoFiveYearsofBalanceSheetDate	0	usd
CY2024Q3	us-gaap	Advances From Federal Home Loan Banks AdvancesFromFederalHomeLoanBanks	2192874000	usd
CY2023Q3	us-gaap	Advances From Federal Home Loan Banks AdvancesFromFederalHomeLoanBanks	2900000000	usd
CY2024	wfsl	Federal Home Loan Bank Advances Weighted Average Effective Maturity FederalHomeLoanBankAdvancesWeightedAverageEffectiveMaturity	P2Y4M2D
CY2024Q3	us-gaap	Federal Home Loan Bank Advances Activity For Year Average Interest Rate At Period End FederalHomeLoanBankAdvancesActivityForYearAverageInterestRateAtPeriodEnd	0.0332
CY2023Q3	us-gaap	Federal Home Loan Bank Advances Activity For Year Average Interest Rate At Period End FederalHomeLoanBankAdvancesActivityForYearAverageInterestRateAtPeriodEnd	0.0383
CY2022Q3	us-gaap	Federal Home Loan Bank Advances Activity For Year Average Interest Rate At Period End FederalHomeLoanBankAdvancesActivityForYearAverageInterestRateAtPeriodEnd	0.0202
CY2024	us-gaap	Federal Home Loan Bank Advances Activity For Year Average Interest Rate For Year FederalHomeLoanBankAdvancesActivityForYearAverageInterestRateForYear	0.0378
CY2023	us-gaap	Federal Home Loan Bank Advances Activity For Year Average Interest Rate For Year FederalHomeLoanBankAdvancesActivityForYearAverageInterestRateForYear	0.0342
CY2022	us-gaap	Federal Home Loan Bank Advances Activity For Year Average Interest Rate For Year FederalHomeLoanBankAdvancesActivityForYearAverageInterestRateForYear	0.0166
CY2024	wfsl	Federal Home Loan Bank Advances Activity For Year Daily Average Balance Of Agreements Outstanding FederalHomeLoanBankAdvancesActivityForYearDailyAverageBalanceOfAgreementsOutstanding	2952872000	usd
CY2023	wfsl	Federal Home Loan Bank Advances Activity For Year Daily Average Balance Of Agreements Outstanding FederalHomeLoanBankAdvancesActivityForYearDailyAverageBalanceOfAgreementsOutstanding	2916849000	usd
CY2022	wfsl	Federal Home Loan Bank Advances Activity For Year Daily Average Balance Of Agreements Outstanding FederalHomeLoanBankAdvancesActivityForYearDailyAverageBalanceOfAgreementsOutstanding	1731110000	usd
CY2024Q3	us-gaap	Federal Home Loan Bank Advances Activity For Year Maximum Outstanding At Any Month End FederalHomeLoanBankAdvancesActivityForYearMaximumOutstandingAtAnyMonthEnd	4338731000	usd
CY2023Q3	us-gaap	Federal Home Loan Bank Advances Activity For Year Maximum Outstanding At Any Month End FederalHomeLoanBankAdvancesActivityForYearMaximumOutstandingAtAnyMonthEnd	3425000000	usd
CY2022Q3	us-gaap	Federal Home Loan Bank Advances Activity For Year Maximum Outstanding At Any Month End FederalHomeLoanBankAdvancesActivityForYearMaximumOutstandingAtAnyMonthEnd	2125000000	usd
CY2024	wfsl	Interest Expense Federal Home Loan Bank Advances InterestExpenseFederalHomeLoanBankAdvances	111574000	usd
CY2023	wfsl	Interest Expense Federal Home Loan Bank Advances InterestExpenseFederalHomeLoanBankAdvances	99631000	usd
CY2022	wfsl	Interest Expense Federal Home Loan Bank Advances InterestExpenseFederalHomeLoanBankAdvances	28729000	usd
CY2024Q3	wfsl	Number Of Wholly Owned Trust Companies NumberOfWhollyOwnedTrustCompanies	2	company
CY2024	wfsl	Junior Subordinated Debenture Owed To Unconsolidated Subsidiary Trust Interest Deferment Period Maximum JuniorSubordinatedDebentureOwedToUnconsolidatedSubsidiaryTrustInterestDefermentPeriodMaximum	P5Y
CY2024Q3	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	37486000	usd
CY2023Q3	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	21126000	usd
CY2024Q3	us-gaap	Operating Lease Liability OperatingLeaseLiability	40788000	usd
CY2023Q3	us-gaap	Operating Lease Liability OperatingLeaseLiability	23422000	usd
CY2024Q3	us-gaap	Operating Lease Weighted Average Remaining Lease Term1 OperatingLeaseWeightedAverageRemainingLeaseTerm1	P9Y6M
CY2024Q3	us-gaap	Operating Lease Weighted Average Discount Rate Percent OperatingLeaseWeightedAverageDiscountRatePercent	0.0374
CY2024	us-gaap	Operating Lease Payments OperatingLeasePayments	9627000	usd
CY2023	us-gaap	Operating Lease Payments OperatingLeasePayments	6418000	usd
CY2024	us-gaap	Right Of Use Asset Obtained In Exchange For Operating Lease Liability RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability	12890000	usd
CY2023	us-gaap	Right Of Use Asset Obtained In Exchange For Operating Lease Liability RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability	2349000	usd
CY2024Q3	wfsl	Business Combination Recognized Identifiable Assets Acquired And Liabilities Assumed Operating Lease Right Of Use Asset BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedOperatingLeaseRightOfUseAsset	11478000	usd
CY2024	us-gaap	Operating Lease Cost OperatingLeaseCost	8521000	usd
CY2023	us-gaap	Operating Lease Cost OperatingLeaseCost	6424000	usd
CY2024	us-gaap	Variable Lease Cost VariableLeaseCost	2504000	usd
CY2023	us-gaap	Variable Lease Cost VariableLeaseCost	1262000	usd
CY2024	us-gaap	Sublease Income SubleaseIncome	405000	usd
CY2023	us-gaap	Sublease Income SubleaseIncome	369000	usd
CY2024	us-gaap	Lease Cost LeaseCost	10620000	usd
CY2023	us-gaap	Lease Cost LeaseCost	7317000	usd
CY2024Q3	us-gaap	Lessee Operating Lease Liability Payments Due Next Twelve Months LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths	11786000	usd
CY2024Q3	us-gaap	Lessee Operating Lease Liability Payments Due Year Two LesseeOperatingLeaseLiabilityPaymentsDueYearTwo	7984000	usd
CY2024Q3	us-gaap	Lessee Operating Lease Liability Payments Due Year Three LesseeOperatingLeaseLiabilityPaymentsDueYearThree	7027000	usd
CY2024Q3	us-gaap	Lessee Operating Lease Liability Payments Due Year Four LesseeOperatingLeaseLiabilityPaymentsDueYearFour	5067000	usd
CY2024Q3	us-gaap	Lessee Operating Lease Liability Payments Due Year Five LesseeOperatingLeaseLiabilityPaymentsDueYearFive	2943000	usd
CY2024Q3	us-gaap	Lessee Operating Lease Liability Payments Due After Year Five LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive	14443000	usd
CY2024Q3	us-gaap	Lessee Operating Lease Liability Payments Due LesseeOperatingLeaseLiabilityPaymentsDue	49250000	usd
CY2024Q3	us-gaap	Lessee Operating Lease Liability Undiscounted Excess Amount LesseeOperatingLeaseLiabilityUndiscountedExcessAmount	8462000	usd
CY2024Q3	us-gaap	Operating Lease Liability OperatingLeaseLiability	40788000	usd
CY2024	us-gaap	Operating Lease Expense OperatingLeaseExpense	11025000	usd
CY2023	us-gaap	Operating Lease Expense OperatingLeaseExpense	7686000	usd
CY2024Q3	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Provision For Loan Losses DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsProvisionForLoanLosses	53227000	usd
CY2023Q3	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Provision For Loan Losses DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsProvisionForLoanLosses	46191000	usd
CY2024Q3	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Reserves DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsReserves	480000	usd
CY2023Q3	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Reserves DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsReserves	300000	usd
CY2024Q3	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Accrued Liabilities DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAccruedLiabilities	3124000	usd
CY2023Q3	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Accrued Liabilities DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAccruedLiabilities	1797000	usd
CY2024Q3	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Employee Compensation DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsEmployeeCompensation	7815000	usd
CY2023Q3	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Employee Compensation DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsEmployeeCompensation	2901000	usd
CY2024Q3	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Share Based Compensation Cost DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost	4696000	usd
CY2023Q3	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Share Based Compensation Cost DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost	3089000	usd
CY2024Q3	wfsl	Deferred Tax Assets Operating Lease Liability DeferredTaxAssetsOperatingLeaseLiability	9626000	usd
CY2023Q3	wfsl	Deferred Tax Assets Operating Lease Liability DeferredTaxAssetsOperatingLeaseLiability	5367000	usd
CY2024Q3	wfsl	Deferred Tax Asset Loan Purchase Discount DeferredTaxAssetLoanPurchaseDiscount	48064000	usd
CY2023Q3	wfsl	Deferred Tax Asset Loan Purchase Discount DeferredTaxAssetLoanPurchaseDiscount	0	usd
CY2024Q3	us-gaap	Deferred Tax Assets Operating Loss Carryforwards DeferredTaxAssetsOperatingLossCarryforwards	68483000	usd
CY2023Q3	us-gaap	Deferred Tax Assets Operating Loss Carryforwards DeferredTaxAssetsOperatingLossCarryforwards	0	usd
CY2024Q3	us-gaap	Deferred Tax Assets Other DeferredTaxAssetsOther	1739000	usd
CY2023Q3	us-gaap	Deferred Tax Assets Other DeferredTaxAssetsOther	2804000	usd
CY2024Q3	us-gaap	Deferred Tax Assets Net DeferredTaxAssetsNet	197254000	usd
CY2023Q3	us-gaap	Deferred Tax Assets Net DeferredTaxAssetsNet	62449000	usd
CY2024Q3	wfsl	Deferred Tax Liabilities Federal Home Loan Bank Stock Dividends DeferredTaxLiabilitiesFederalHomeLoanBankStockDividends	6171000	usd
CY2023Q3	wfsl	Deferred Tax Liabilities Federal Home Loan Bank Stock Dividends DeferredTaxLiabilitiesFederalHomeLoanBankStockDividends	9741000	usd
CY2024Q3	wfsl	Deferred Tax Liabilities Investments And Derivative Instruments DeferredTaxLiabilitiesInvestmentsAndDerivativeInstruments	13758000	usd
CY2023Q3	wfsl	Deferred Tax Liabilities Investments And Derivative Instruments DeferredTaxLiabilitiesInvestmentsAndDerivativeInstruments	13933000	usd
CY2024Q3	us-gaap	Deferred Tax Liabilities Deferred Expense Deferred Financing Costs DeferredTaxLiabilitiesDeferredExpenseDeferredFinancingCosts	11777000	usd
CY2023Q3	us-gaap	Deferred Tax Liabilities Deferred Expense Deferred Financing Costs DeferredTaxLiabilitiesDeferredExpenseDeferredFinancingCosts	11471000	usd
CY2024Q3	us-gaap	Deferred Tax Liabilities Property Plant And Equipment DeferredTaxLiabilitiesPropertyPlantAndEquipment	16390000	usd
CY2023Q3	us-gaap	Deferred Tax Liabilities Property Plant And Equipment DeferredTaxLiabilitiesPropertyPlantAndEquipment	18155000	usd
CY2024Q3	us-gaap	Deferred Tax Liabilities Leasing Arrangements DeferredTaxLiabilitiesLeasingArrangements	9304000	usd
CY2023Q3	us-gaap	Deferred Tax Liabilities Leasing Arrangements DeferredTaxLiabilitiesLeasingArrangements	4841000	usd
CY2024Q3	us-gaap	Deferred Tax Liabilities Investments DeferredTaxLiabilitiesInvestments	3700000	usd
CY2023Q3	us-gaap	Deferred Tax Liabilities Investments DeferredTaxLiabilitiesInvestments	4244000	usd
CY2024Q3	us-gaap	Deferred Tax Liabilities Goodwill And Intangible Assets Intangible Assets DeferredTaxLiabilitiesGoodwillAndIntangibleAssetsIntangibleAssets	12824000	usd
CY2023Q3	us-gaap	Deferred Tax Liabilities Goodwill And Intangible Assets Intangible Assets DeferredTaxLiabilitiesGoodwillAndIntangibleAssetsIntangibleAssets	4798000	usd
CY2024Q3	us-gaap	Deferred Tax Liabilities Other DeferredTaxLiabilitiesOther	184000	usd
CY2023Q3	us-gaap	Deferred Tax Liabilities Other DeferredTaxLiabilitiesOther	483000	usd
CY2024Q3	us-gaap	Deferred Income Tax Liabilities DeferredIncomeTaxLiabilities	74108000	usd
CY2023Q3	us-gaap	Deferred Income Tax Liabilities DeferredIncomeTaxLiabilities	67666000	usd
CY2024Q3	us-gaap	Deferred Tax Assets Liabilities Net DeferredTaxAssetsLiabilitiesNet	123146000	usd
CY2023Q3	us-gaap	Deferred Tax Liabilities DeferredTaxLiabilities	5217000	usd
CY2024Q3	wfsl	Current Tax Asset Liability CurrentTaxAssetLiability	-3898000	usd
CY2023Q3	wfsl	Current Tax Asset Liability CurrentTaxAssetLiability	13696000	usd
CY2024Q3	wfsl	Income Tax Asset Liability Net IncomeTaxAssetLiabilityNet	119248000	usd
CY2023Q3	wfsl	Income Tax Asset Liability Net IncomeTaxAssetLiabilityNet	8479000	usd
CY2024Q3	us-gaap	Operating Loss Carryforwards OperatingLossCarryforwards	290000000	usd
CY2024Q3	wfsl	Operating Loss Carryforwards Utilization Period OperatingLossCarryforwardsUtilizationPeriod	P17Y
CY2024	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.210
CY2023	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.210
CY2022	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.210
CY2024	us-gaap	Effective Income Tax Rate Reconciliation State And Local Income Taxes EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes	0.023
CY2023	us-gaap	Effective Income Tax Rate Reconciliation State And Local Income Taxes EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes	0.017
CY2022	us-gaap	Effective Income Tax Rate Reconciliation State And Local Income Taxes EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes	0.019
CY2024	us-gaap	Effective Income Tax Rate Reconciliation Tax Exempt Income EffectiveIncomeTaxRateReconciliationTaxExemptIncome	0.021
CY2023	us-gaap	Effective Income Tax Rate Reconciliation Tax Exempt Income EffectiveIncomeTaxRateReconciliationTaxExemptIncome	0.012
CY2022	us-gaap	Effective Income Tax Rate Reconciliation Tax Exempt Income EffectiveIncomeTaxRateReconciliationTaxExemptIncome	0.009
CY2024	us-gaap	Effective Income Tax Rate Reconciliation Nondeductible Expense EffectiveIncomeTaxRateReconciliationNondeductibleExpense	0.012
CY2023	us-gaap	Effective Income Tax Rate Reconciliation Nondeductible Expense EffectiveIncomeTaxRateReconciliationNondeductibleExpense	0.005
CY2022	us-gaap	Effective Income Tax Rate Reconciliation Nondeductible Expense EffectiveIncomeTaxRateReconciliationNondeductibleExpense	0.001
CY2024	us-gaap	Effective Income Tax Rate Reconciliation Tax Credits Investment EffectiveIncomeTaxRateReconciliationTaxCreditsInvestment	0.011
CY2023	us-gaap	Effective Income Tax Rate Reconciliation Tax Credits Investment EffectiveIncomeTaxRateReconciliationTaxCreditsInvestment	0.013
CY2022	us-gaap	Effective Income Tax Rate Reconciliation Tax Credits Investment EffectiveIncomeTaxRateReconciliationTaxCreditsInvestment	0.009
CY2024	us-gaap	Effective Income Tax Rate Reconciliation Other Adjustments EffectiveIncomeTaxRateReconciliationOtherAdjustments	0.006
CY2023	us-gaap	Effective Income Tax Rate Reconciliation Other Adjustments EffectiveIncomeTaxRateReconciliationOtherAdjustments	0.001
CY2022	us-gaap	Effective Income Tax Rate Reconciliation Other Adjustments EffectiveIncomeTaxRateReconciliationOtherAdjustments	0
CY2024	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.219
CY2023	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.208
CY2022	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.212
CY2024	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	54817000	usd
CY2023	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	58667000	usd
CY2022	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	50854000	usd
CY2024	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	-4767000	usd
CY2023	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	3334000	usd
CY2022	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	7187000	usd
CY2024	us-gaap	Federal Income Tax Expense Benefit Continuing Operations FederalIncomeTaxExpenseBenefitContinuingOperations	50050000	usd
CY2023	us-gaap	Federal Income Tax Expense Benefit Continuing Operations FederalIncomeTaxExpenseBenefitContinuingOperations	62001000	usd
CY2022	us-gaap	Federal Income Tax Expense Benefit Continuing Operations FederalIncomeTaxExpenseBenefitContinuingOperations	58041000	usd
CY2024	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	7837000	usd
CY2023	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	4425000	usd
CY2022	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	6600000	usd
CY2024	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	-1872000	usd
CY2023	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	1224000	usd
CY2022	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	-934000	usd
CY2024	us-gaap	State And Local Income Tax Expense Benefit Continuing Operations StateAndLocalIncomeTaxExpenseBenefitContinuingOperations	5965000	usd
CY2023	us-gaap	State And Local Income Tax Expense Benefit Continuing Operations StateAndLocalIncomeTaxExpenseBenefitContinuingOperations	5649000	usd
CY2022	us-gaap	State And Local Income Tax Expense Benefit Continuing Operations StateAndLocalIncomeTaxExpenseBenefitContinuingOperations	5666000	usd
CY2024	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	62654000	usd
CY2023	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	63092000	usd
CY2022	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	57454000	usd
CY2024	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-6639000	usd
CY2023	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	4558000	usd
CY2022	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	6253000	usd
CY2024	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	56015000	usd
CY2023	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	67650000	usd
CY2022	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	63707000	usd
CY2024	wfsl	Income Tax Examination Returns Open To Examination Maximum IncomeTaxExaminationReturnsOpenToExaminationMaximum	P5Y
CY2024	wfsl	Income Tax Examination Returns Open To Examination State Impact Of Federal Changes Maximum IncomeTaxExaminationReturnsOpenToExaminationStateImpactOfFederalChangesMaximum	P2Y
CY2024	us-gaap	Defined Contribution Plan Maximum Annual Contributions Per Employee Percent DefinedContributionPlanMaximumAnnualContributionsPerEmployeePercent	1
CY2024	us-gaap	Defined Contribution Plan Maximum Annual Contributions Per Employee Amount DefinedContributionPlanMaximumAnnualContributionsPerEmployeeAmount	69000	usd
CY2024	wfsl	Defined Contribution Plan Service Period For Participation Eligibility DefinedContributionPlanServicePeriodForParticipationEligibility	P30D
CY2024	wfsl	Defined Contribution Plan Service Period For Eligibility Of Profit Sharing Or Matching Contributions DefinedContributionPlanServicePeriodForEligibilityOfProfitSharingOrMatchingContributions	P1Y
CY2024	us-gaap	Defined Contribution Plan Employer Matching Contribution Percent Of Match DefinedContributionPlanEmployerMatchingContributionPercentOfMatch	1
CY2024	us-gaap	Defined Contribution Plan Employer Matching Contribution Percent DefinedContributionPlanEmployerMatchingContributionPercent	0.04
CY2024	wfsl	Term For Employees To Become Fully Vested TermForEmployeesToBecomeFullyVested	P6Y
CY2024	us-gaap	Defined Contribution Plan Cost Recognized DefinedContributionPlanCostRecognized	8185000	usd
CY2023	us-gaap	Defined Contribution Plan Cost Recognized DefinedContributionPlanCostRecognized	8648000	usd
CY2022	us-gaap	Defined Contribution Plan Cost Recognized DefinedContributionPlanCostRecognized	10559000	usd
CY2024	wfsl	Share Based Compensation Arrangement By Share Based Payment Award Contractual Term ShareBasedCompensationArrangementByShareBasedPaymentAwardContractualTerm	P10Y
CY2024	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Gross ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross	0	shares
CY2023	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Gross ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross	779740	shares
CY2022	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Gross ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross	352043	shares
CY2022Q3	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	1137608	shares
CY2022Q3	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	30.06
CY2022	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Outstanding Weighted Average Remaining Contractual Term2 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2	P8Y
CY2022Q3	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue	5330000	usd
CY2023	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Gross ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross	779740	shares
CY2023	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Grants In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice	28.47
CY2023	us-gaap	Stock Issued During Period Shares Stock Options Exercised StockIssuedDuringPeriodSharesStockOptionsExercised	35877	shares
CY2023	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Exercises In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice	30.39
CY2023	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresInPeriod	173646	shares
CY2023	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Forfeitures In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsForfeituresInPeriodWeightedAverageExercisePrice	30.07
CY2023Q3	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	1707825	shares
CY2023Q3	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	29.32
CY2023	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Outstanding Weighted Average Remaining Contractual Term2 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2	P8Y
CY2023Q3	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue	0	usd
CY2024	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Gross ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross	0	shares
CY2024	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Grants In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice	0
CY2024	us-gaap	Stock Issued During Period Shares Stock Options Exercised StockIssuedDuringPeriodSharesStockOptionsExercised	196086	shares
CY2024	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Exercises In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice	26.45
CY2024	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresInPeriod	157114	shares
CY2024	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Forfeitures In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsForfeituresInPeriodWeightedAverageExercisePrice	30.07
CY2024Q3	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	1354625	shares
CY2024Q3	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	29.65
CY2024	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Outstanding Weighted Average Remaining Contractual Term2 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2	P7Y
CY2024Q3	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue	7040000	usd
CY2024Q3	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber	512778	shares
CY2024Q3	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice	29.98
CY2024	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Exercisable Weighted Average Remaining Contractual Term1 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableWeightedAverageRemainingContractualTerm1	P5Y
CY2024Q3	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Exercisable Intrinsic Value1 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1	2499000	usd
CY2024	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	1571000	usd
CY2023	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	1875000	usd
CY2022	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	1296000	usd
CY2024	wfsl	Share Based Compensation Arrangement By Share Based Payment Award Options Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsWeightedAverageGrantDateFairValue	6.14
CY2023	wfsl	Share Based Compensation Arrangement By Share Based Payment Award Options Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsWeightedAverageGrantDateFairValue	5.91
CY2022	wfsl	Share Based Compensation Arrangement By Share Based Payment Award Options Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsWeightedAverageGrantDateFairValue	5.10
CY2024	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercises In Period Total Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue	1228000	usd
CY2023	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercises In Period Total Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue	214000	usd
CY2022	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercises In Period Total Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue	433000	usd
CY2024	wfsl	Share Based Compensation Arrangement By Share Based Payment Award Options Exercised Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisedGrantDateFairValue	690000	usd
CY2023	wfsl	Share Based Compensation Arrangement By Share Based Payment Award Options Exercised Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisedGrantDateFairValue	198000	usd
CY2022	wfsl	Share Based Compensation Arrangement By Share Based Payment Award Options Exercised Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisedGrantDateFairValue	345000	usd
CY2024	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	5187000	usd
CY2023	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	1089000	usd
CY2022	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	1823000	usd
CY2023Q3	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Nonvested Number Of Shares SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsNonvestedNumberOfShares	1390422	shares
CY2023Q3	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Nonvested Weighted Average Grant Date Fair Value SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsNonvestedWeightedAverageGrantDateFairValue	5.93
CY2022Q3	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Nonvested Number Of Shares SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsNonvestedNumberOfShares	981410	shares
CY2022Q3	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Nonvested Weighted Average Grant Date Fair Value SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsNonvestedWeightedAverageGrantDateFairValue	5.07
CY2021Q3	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Nonvested Number Of Shares SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsNonvestedNumberOfShares	1031134	shares
CY2021Q3	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Nonvested Weighted Average Grant Date Fair Value SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsNonvestedWeightedAverageGrantDateFairValue	4.39
CY2024	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Gross ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross	0	shares
CY2024	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue	0
CY2023	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Gross ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross	779740	shares
CY2023	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue	7.11
CY2022	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Gross ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross	352043	shares
CY2022	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue	7.18
CY2024	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Vested Number Of Shares SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedNumberOfShares	412160	shares
CY2024	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Vested Weighted Average Grant Date Fair Value SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedWeightedAverageGrantDateFairValue	3.20
CY2023	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Vested Number Of Shares SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedNumberOfShares	217695	shares
CY2023	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Vested Weighted Average Grant Date Fair Value SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedWeightedAverageGrantDateFairValue	6.13
CY2022	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Vested Number Of Shares SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedNumberOfShares	223387	shares
CY2022	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Vested Weighted Average Grant Date Fair Value SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedWeightedAverageGrantDateFairValue	5.32
CY2024	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Nonvested Options Forfeited Number Of Shares SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsNonvestedOptionsForfeitedNumberOfShares	135011	shares
CY2024	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Nonvested Options Forfeited Weighted Average Grant Date Fair Value SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsNonvestedOptionsForfeitedWeightedAverageGrantDateFairValue	6.07
CY2023	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Nonvested Options Forfeited Number Of Shares SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsNonvestedOptionsForfeitedNumberOfShares	153033	shares
CY2023	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Nonvested Options Forfeited Weighted Average Grant Date Fair Value SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsNonvestedOptionsForfeitedWeightedAverageGrantDateFairValue	5.38
CY2022	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Nonvested Options Forfeited Number Of Shares SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsNonvestedOptionsForfeitedNumberOfShares	178380	shares
CY2022	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Nonvested Options Forfeited Weighted Average Grant Date Fair Value SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsNonvestedOptionsForfeitedWeightedAverageGrantDateFairValue	5.02
CY2024Q3	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Nonvested Number Of Shares SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsNonvestedNumberOfShares	843251	shares
CY2024Q3	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Nonvested Weighted Average Grant Date Fair Value SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsNonvestedWeightedAverageGrantDateFairValue	5.50
CY2023Q3	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Nonvested Number Of Shares SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsNonvestedNumberOfShares	1390422	shares
CY2023Q3	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Nonvested Weighted Average Grant Date Fair Value SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsNonvestedWeightedAverageGrantDateFairValue	5.93
CY2022Q3	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Nonvested Number Of Shares SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsNonvestedNumberOfShares	981410	shares
CY2022Q3	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Nonvested Weighted Average Grant Date Fair Value SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsNonvestedWeightedAverageGrantDateFairValue	5.07
CY2021Q1	us-gaap	Preferred Stock Dividend Rate Percentage PreferredStockDividendRatePercentage	0.04875
CY2021Q1	us-gaap	Proceeds From Issuance Of Preferred Stock And Preference Stock ProceedsFromIssuanceOfPreferredStockAndPreferenceStock	293325000	usd
CY2024	us-gaap	Treasury Stock Shares Acquired TreasuryStockSharesAcquired	1058178	shares
CY2023	us-gaap	Treasury Stock Shares Acquired TreasuryStockSharesAcquired	1165161	shares
CY2024Q3	srt	Stock Repurchase Program Number Of Shares Authorized To Be Repurchased StockRepurchaseProgramNumberOfSharesAuthorizedToBeRepurchased	11501005	shares
CY2024	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	74244323	shares
CY2023	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	65192510	shares
CY2022	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	65287650	shares
CY2024	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	74290568	shares
CY2023	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	65255283	shares
CY2022	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	65404110	shares
CY2024	us-gaap	Net Income Loss Available To Common Stockholders Diluted NetIncomeLossAvailableToCommonStockholdersDiluted	185416000	usd
CY2024	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	185416000	usd
CY2023	us-gaap	Net Income Loss Available To Common Stockholders Diluted NetIncomeLossAvailableToCommonStockholdersDiluted	242801000	usd
CY2023	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	242801000	usd
CY2022	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	221705000	usd
CY2022	us-gaap	Net Income Loss Available To Common Stockholders Diluted NetIncomeLossAvailableToCommonStockholdersDiluted	221705000	usd
CY2024	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	2.50
CY2023	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	3.72
CY2022	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	3.40
CY2024	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	2.50
CY2023	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	3.72
CY2022	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	3.39
CY2024Q3	ecd	Non Rule10b51 Arr Adopted Flag NonRule10b51ArrAdoptedFlag	false
CY2024Q3	ecd	Rule10b51 Arr Adopted Flag Rule10b51ArrAdoptedFlag	false
CY2024Q3	ecd	Non Rule10b51 Arr Trmntd Flag NonRule10b51ArrTrmntdFlag	false
CY2024Q3	ecd	Rule10b51 Arr Trmntd Flag Rule10b51ArrTrmntdFlag	false
CY2024	ecd	Insider Trd Policies Proc Adopted Flag InsiderTrdPoliciesProcAdoptedFlag	true

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$WAFD
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2024 Q4 Form 10-K Financial Statement

#000093652824000164 Filed on November 20, 2024

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$WAFD WAFD INC Stock $wafd

2024 Q4 Form 10-K Financial Statement

#000093652824000164 Filed on November 20, 2024

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$WAFD
WAFD INC Stock $wafd