WAL


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

Table of contents



us-gaap:CommonStockValue
us-gaap:StatementEquityComponents
us-gaap:SharesIssued

us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding

us-gaap:WeightedAverageNumberOfSharesOutstandingBasic

us-gaap:EarningsPerShareBasic

us-gaap:EarningsPerShareDiluted
dei:LegalEntity
us-gaap:TierOneRiskBasedCapitalToRiskWeightedAssets
us-gaap:ConsolidatedEntities
dei:LegalEntity
us-gaap:CapitalToRiskWeightedAssets
us-gaap:ConsolidatedEntities
us-gaap:AwardType
us-gaap:AllocatedShareBasedCompensationExpense
us-gaap:TitleOfIndividual, us-gaap:AwardType

us-gaap:ComprehensiveIncomeNetOfTax

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

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

us-gaap:IncomeTaxesPaidNet

us-gaap:InterestAndFeeIncomeLoansAndLeases

us-gaap:InterestExpense

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

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

us-gaap:NetIncomeLossAvailableToCommonStockholdersBasic

us-gaap:OtherComprehensiveIncomeLossNetOfTax
us-gaap:RetirementPlanType
us-gaap:StatementEquityComponents

us-gaap:Assets
us-gaap:ConsolidatedEntities
us-gaap:ConsolidationItems
us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments
us-gaap:ConsolidationItems, us-gaap:StatementGeographical

us-gaap:Liabilities
us-gaap:ConsolidatedEntities
us-gaap:ConsolidationItems
us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments
us-gaap:ConsolidationItems, us-gaap:StatementGeographical

us-gaap:LiabilitiesAndStockholdersEquity
us-gaap:ConsolidatedEntities
us-gaap:ConsolidationItems
us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments
us-gaap:ConsolidationItems, us-gaap:StatementGeographical

us-gaap:StockholdersEquity
us-gaap:ConsolidatedEntities
us-gaap:ConsolidationItems
us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments
us-gaap:ConsolidationItems, us-gaap:StatementGeographical
us-gaap:StatementEquityComponents
dei:LegalEntity
us-gaap:TierOneRiskBasedCapital
us-gaap:ConsolidatedEntities

us-gaap:CashAndCashEquivalentsAtCarryingValue
us-gaap:ConsolidatedEntities

us-gaap:PropertyPlantAndEquipmentGross

us-gaap:FurnitureAndFixturesGross

us-gaap:LeaseholdImprovementsGross

us-gaap:ConstructionInProgressGross

us-gaap:AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment

us-gaap:AmortizationOfIntangibleAssets

us-gaap:PropertyPlantAndEquipmentNet

us-gaap:Goodwill

us-gaap:FiniteLivedIntangibleAssetsNet
us-gaap:FiniteLivedIntangibleAssetsByMajorClass

us-gaap:IntangibleAssetsNetIncludingGoodwill
us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments
us-gaap:ConsolidationItems, us-gaap:StatementGeographical

us-gaap:DeferredTaxAssetsLiabilitiesNet

us-gaap:OperatingLeaseRightOfUseAsset

us-gaap:EquitySecuritiesFvNi
us-gaap:ConsolidatedEntities
us-gaap:ExternalCreditRatingByGrouping
us-gaap:ExternalCreditRatingByGrouping, us-gaap:FinancialInstrument
us-gaap:FairValueByAssetClass, us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency
us-gaap:FairValueByAssetClass, us-gaap:FairValueByMeasurementFrequency
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementBasis, us-gaap:FairValueByMeasurementFrequency
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency, us-gaap:FinancialInstrument
us-gaap:FairValueByMeasurementBasis, us-gaap:FairValueByMeasurementFrequency
us-gaap:FairValueByMeasurementFrequency
us-gaap:FairValueByMeasurementFrequency, us-gaap:FinancialInstrument
us-gaap:FinancialInstrument

us-gaap:OtherAssets
us-gaap:ConsolidatedEntities

us-gaap:TimeDepositMaturitiesYearOne

us-gaap:LongTermDebt

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearTwo

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearThree

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFour

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFive

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive

us-gaap:OperatingLeaseLiability

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDue

us-gaap:LesseeOperatingLeaseLiabilityUndiscountedExcessAmount

us-gaap:StockholdersEquity
us-gaap:ConsolidatedEntities
us-gaap:ConsolidationItems
us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments
us-gaap:ConsolidationItems, us-gaap:StatementGeographical
us-gaap:StatementEquityComponents

us-gaap:CommonStockValue

us-gaap:AdditionalPaidInCapital

us-gaap:CommonStocksIncludingAdditionalPaidInCapital

us-gaap:RetainedEarningsAccumulatedDeficit

us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax
us-gaap:RetirementPlanType
us-gaap:StatementEquityComponents

us-gaap:TreasuryStockValue

us-gaap:StockIssuedDuringPeriodValueNewIssues
us-gaap:StatementEquityComponents

us-gaap:NetCashProvidedByUsedInOperatingActivities

us-gaap:NetCashProvidedByUsedInInvestingActivities

us-gaap:NetCashProvidedByUsedInFinancingActivities

us-gaap:CashAndCashEquivalentsPeriodIncreaseDecrease

us-gaap:IncreaseDecreaseInOtherOperatingCapitalNet

us-gaap:NetCashProvidedByUsedInOperatingActivities

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

us-gaap:ShareBasedCompensation

us-gaap:NetCashProvidedByUsedInInvestingActivities

us-gaap:NetCashProvidedByUsedInFinancingActivities

us-gaap:PaymentsOfDividendsCommonStock

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

us-gaap:EffectiveIncomeTaxRateContinuingOperations

us-gaap:DeferredTaxAssetsNet

us-gaap:UnrecognizedTaxBenefits

us-gaap:AccretionAmortizationOfDiscountsAndPremiumsInvestments

us-gaap:AmortizationMethodQualifiedAffordableHousingProjectInvestmentsAmortization

us-gaap:AmortizationOfDeferredLoanOriginationFeesNet
us-gaap:FinancialInstrument
us-gaap:AncillaryFeeIncomeGeneratedByServicingFinancialAssetsAmount

us-gaap:AvailableForSaleSecuritiesGrossRealizedGains

us-gaap:AvailableForSaleSecuritiesGrossRealizedLosses

us-gaap:BankOwnedLifeInsuranceIncome

us-gaap:BusinessAcquisitionsProFormaNetIncomeLoss

us-gaap:BusinessCombinationAcquisitionRelatedCosts

us-gaap:BusinessDevelopment
us-gaap:FinancialInstrument
us-gaap:CashFlowsBetweenTransfereeAndTransferorServicingFees

us-gaap:ChangeInUnrealizedGainLossOnFairValueHedgingInstruments1
us-gaap:IncomeStatementLocation
us-gaap:IncomeStatementLocation
us-gaap:ChangeInUnrealizedGainLossOnHedgedItemInFairValueHedge1

us-gaap:CommonStockDividendsPerShareDeclared
us-gaap:ConcentrationRiskByBenchmark, us-gaap:ConcentrationRiskByType, us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable
us-gaap:ConcentrationRiskPercentage1

us-gaap:ContractWithCustomerLiabilityRevenueRecognized
us-gaap:ConsolidationItems
us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments
us-gaap:ConsolidationItems, us-gaap:StatementGeographical
us-gaap:FinancialInstrument
us-gaap:ContractuallySpecifiedServicingFeesAmount

us-gaap:ContractuallySpecifiedServicingFeesLateFeesAndAncillaryFeesEarnedInExchangeForServicingFinancialAssets
us-gaap:FinancialInstrument

us-gaap:DebtAndEquitySecuritiesRealizedGainLoss
us-gaap:FairValueByLiabilityClass
us-gaap:DebtInstrumentBasisSpreadOnVariableRate1

us-gaap:DebtSecuritiesAvailableForSaleRealizedGainLoss

us-gaap:DebtSecuritiesHeldToMaturityCreditLossExpenseReversal

us-gaap:DeferredIncomeTaxesAndTaxCredits

us-gaap:DepreciationAndAmortization

us-gaap:DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsGain

us-gaap:DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsGainLossNet
us-gaap:FinancialInstrument
us-gaap:DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsLoss

us-gaap:DividendIncomeSecuritiesOperatingTaxable

us-gaap:DividendsCommonStockCash
us-gaap:StatementEquityComponents
us-gaap:SubsequentEventType
us-gaap:EarlyRepaymentOfSubordinatedDebt

us-gaap:EquitySecuritiesFvNiUnrealizedGainLoss

us-gaap:ExpenseRelatedToDistributionOrServicingAndUnderwritingFees
us-gaap:FinancialInstrument
us-gaap:FairValueByLiabilityClass
us-gaap:FairValueLiabilitiesMeasuredOnRecurringBasisChangeInUnrealizedGainLoss
us-gaap:FairValueByLiabilityClass
us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityGainLossIncludedInOtherComprehensiveIncome

us-gaap:FeesAndCommissionsMortgageBankingAndServicing
us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments
us-gaap:ConsolidationItems, us-gaap:StatementGeographical

us-gaap:FinancingReceivableAllowanceForCreditLossesRecovery
us-gaap:FinancingReceivablePortfolioSegment

us-gaap:FinancingReceivableAllowanceForCreditLossesWriteOffs
us-gaap:FinancingReceivablePortfolioSegment

us-gaap:FinancingReceivableModificationsNumberOfContracts2

us-gaap:FinancingReceivableModificationsPostModificationRecordedInvestment2

us-gaap:FinancingReceivableModificationsSubsequentDefaultRecordedInvestment1

us-gaap:FinancingReceivableSignificantPurchases
us-gaap:FinancingReceivablePortfolioSegment

us-gaap:FinancingReceivableSignificantSales

us-gaap:FinancingReceivablesImpairedTroubledDebtRestructuringWriteDown

us-gaap:GainLossOnSalesOfLoansNet
us-gaap:FinancialInstrument
us-gaap:GainsLossesOnSalesOfAssets

us-gaap:GeneralInsuranceExpense

us-gaap:IncreaseDecreaseInDeferredIncomeTaxes

us-gaap:IncreaseDecreaseInDeposits

us-gaap:InformationTechnologyAndDataProcessing

us-gaap:InterestAndDividendIncomeOperating

us-gaap:InterestExpenseBorrowings

us-gaap:InterestExpenseDeposits

us-gaap:InterestExpenseSecuritiesSoldUnderAgreementsToRepurchase

us-gaap:InterestExpenseSubordinatedNotesAndDebentures

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

us-gaap:InterestIncomeSecuritiesTaxable

us-gaap:InterestPaid

us-gaap:LaborAndRelatedExpense

us-gaap:LeaseCost

us-gaap:LifeInsuranceCorporateOrBankOwnedChangeInValue

us-gaap:LoanProcessingFee

us-gaap:LoansAndLeasesReceivableGainLossOnSalesNet

us-gaap:LoansAndLeasesReceivableImpairedInterestLostOnNonaccrualLoans

us-gaap:MarketingExpense

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

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

us-gaap:NoninterestIncomeOtherOperatingIncome

us-gaap:OccupancyNet

us-gaap:OffBalanceSheetCreditLossLiabilityCreditLossExpenseReversal

us-gaap:OperatingLeaseExpense

us-gaap:OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax
us-gaap:RetirementPlanType
us-gaap:StatementEquityComponents

us-gaap:OtherComprehensiveIncomeLossFinancialLiabilityFairValueOptionUnrealizedGainLossArisingDuringPeriodAfterTax

us-gaap:OtherComprehensiveIncomeLossFinancialLiabilityFairValueOptionUnrealizedGainLossArisingDuringPeriodTax

us-gaap:OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax

us-gaap:OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansTax

us-gaap:OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesBeforeTax

us-gaap:OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax

us-gaap:OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesTax

us-gaap:OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax

us-gaap:OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax

us-gaap:OtherInterestAndDividendIncome

us-gaap:OtherNoninterestExpense

us-gaap:PaymentsForProceedsFromLoansAndLeases

us-gaap:PaymentsForProceedsFromProductiveAssets

us-gaap:PaymentsRelatedToTaxWithholdingForShareBasedCompensation

us-gaap:PaymentsToAcquireAvailableForSaleSecurities

us-gaap:PaymentsToAcquireBusinessesGross

us-gaap:PaymentsToAcquireHeldToMaturitySecurities

us-gaap:PaymentsToAcquireRestrictedInvestments

us-gaap:ProceedsFromDividendsReceived

us-gaap:ProceedsFromIssuanceOfCommonStock

us-gaap:ProceedsFromIssuanceOfSubordinatedLongTermDebt

us-gaap:ProceedsFromLifeInsurancePolicies

us-gaap:ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities

us-gaap:ProceedsFromMaturitiesPrepaymentsAndCallsOfHeldToMaturitySecurities

us-gaap:ProceedsFromRepaymentsOfDebt

us-gaap:ProceedsFromSaleOfAvailableForSaleSecurities

us-gaap:ProceedsFromSaleOfMortgageLoansHeldForSale

us-gaap:ProceedsFromSaleOfWhollyOwnedRealEstateAndRealEstateAcquiredInSettlementOfLoans

us-gaap:ProceedsFromStockOptionsExercised

us-gaap:ProvisionForLoanAndLeaseLosses
us-gaap:FinancingReceivablePortfolioSegment

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

us-gaap:ProvisionForOtherCreditLosses

us-gaap:RealizedGainLossOnMarketableSecuritiesCostMethodInvestmentsAndOtherInvestments

us-gaap:ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax
us-gaap:StatementEquityComponents

us-gaap:ServicingAssetAtFairValueAdditions

us-gaap:ServicingAssetAtFairValueChangesInFairValueResultingFromChangesInValuationInputsOrChangesInAssumptions

us-gaap:ServicingAssetAtFairValueDisposals
us-gaap:FinancialInstrument

us-gaap:ServicingAssetAtFairValueOtherChangesInFairValue
us-gaap:FinancialInstrument

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod

us-gaap:SharesPaidForTaxWithholdingForShareBasedCompensation
us-gaap:AwardType
us-gaap:StockGrantedDuringPeriodValueSharebasedCompensationGross

us-gaap:StockIssuedDuringPeriodSharesNewIssues
us-gaap:StatementEquityComponents
us-gaap:StatementEquityComponents
us-gaap:StockIssuedDuringPeriodSharesRestrictedStockAwardNetOfForfeitures
us-gaap:StatementEquityComponents
us-gaap:StockIssuedDuringPeriodSharesStockOptionsExercised

us-gaap:StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures
us-gaap:StatementEquityComponents

us-gaap:StockIssuedDuringPeriodValueStockOptionsExercised
us-gaap:StatementEquityComponents

us-gaap:StockRepurchasedAndRetiredDuringPeriodShares
us-gaap:StatementEquityComponents

us-gaap:StockRepurchasedAndRetiredDuringPeriodValue
us-gaap:StatementEquityComponents

us-gaap:TreasuryStockAcquiredAverageCostPerShare
us-gaap:StatementEquityComponents
us-gaap:TreasuryStockSharesAcquired

us-gaap:TreasuryStockValueAcquiredCostMethod
us-gaap:StatementEquityComponents

us-gaap:UnrealizedGainLossOnDerivatives
us-gaap:FinancialInstrument

us-gaap:WeightedAverageNumberDilutedSharesOutstandingAdjustment

wal:AcquisitionAndRestructureExpenses

wal:BankOwnedLifeInsuranceEnhancement

wal:BusinessAcquisitionProFormaInterestIncome

wal:BusinessAcquisitionProFormaNonInterestIncome

wal:CardIncome

wal:Cardexpense

wal:ChangeInFairValueOfLoansHeldForSale

wal:CommercialBankingRelatedIncome

wal:Debitandcreditcardinterchangefees
us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments
us-gaap:ConsolidationItems, us-gaap:StatementGeographical

wal:GainLossOnForeclosedAssets

wal:GainLossOnSaleAndValuationOfInvestmentSecuritiesAndOtherAssetsNet

wal:IncomefromEquityInvestments

wal:LegalProfessionalAndDirectorFees

wal:Lendingrelatedfees

wal:Lesseeoperatingleaseothercost

wal:LoanAcquisitionAndOriginationFees

wal:LoanAndRepossessedAssetExpense

wal:LoanServicingFeesNet

wal:MSRCapitalizedUponSaleOfLoan

wal:MaximumLoanToValueRatio

wal:NetGainOnLoanOriginationAndSaleActivities

wal:NetLossGainOnSalesValuationsOfRepossessedAssetsAndBankPremisesNet

wal:NonInterestExpenseDepositCosts

wal:Othernoninterestincome
us-gaap:ConsolidationItems
us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments
us-gaap:ConsolidationItems, us-gaap:StatementGeographical

wal:Otherrevenue
us-gaap:ConsolidationItems
us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments
us-gaap:ConsolidationItems, us-gaap:StatementGeographical

wal:PaymentstoAcquireSecuritiesEquity
us-gaap:FairValueByLiabilityClass
wal:PercentageOfBasisSpreadOnVariableRate

wal:ProceedsfromSaleofEquitysecuritiesFVNI

wal:ProvisionForAndChangeInEstimateOfLiabilityForLossesUnderRepresentationsAndWarranties

wal:PurchaseOfInvestmentTaxCredits

wal:PurchaseofSBICInvestments

wal:SuccessFees
us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments
us-gaap:ConsolidationItems, us-gaap:StatementGeographical

wal:WeightedAverageSellingPricePerShare

dei:EntityCommonStockSharesOutstanding

us-gaap:AccountsReceivableNet

us-gaap:AccruedInvestmentIncomeReceivable
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementBasis, us-gaap:FairValueByMeasurementFrequency
us-gaap:FairValueByMeasurementBasis, us-gaap:FairValueByMeasurementFrequency
us-gaap:ConsolidatedEntities
us-gaap:AccruedLiabilitiesAndOtherLiabilities

us-gaap:AmortizationMethodQualifiedAffordableHousingProjectInvestments

us-gaap:AvailableForSaleDebtSecuritiesAmortizedCostBasis
us-gaap:FinancialInstrument

us-gaap:AvailableForSaleSecurities

us-gaap:AvailableForSaleSecuritiesAccumulatedGrossUnrealizedGainBeforeTax
us-gaap:FinancialInstrument

us-gaap:AvailableForSaleSecuritiesAccumulatedGrossUnrealizedLossBeforeTax
us-gaap:FinancialInstrument

us-gaap:AvailableForSaleSecuritiesContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss
us-gaap:FinancialInstrument

us-gaap:AvailableForSaleSecuritiesContinuousUnrealizedLossPositionAccumulatedLoss
us-gaap:FinancialInstrument

us-gaap:AvailableForSaleSecuritiesContinuousUnrealizedLossPositionFairValue
us-gaap:FinancialInstrument

us-gaap:AvailableForSaleSecuritiesContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss
us-gaap:FinancialInstrument

us-gaap:AvailableForSaleSecuritiesContinuousUnrealizedLossPositionLessThanTwelveMonthsFairValue
us-gaap:FinancialInstrument

us-gaap:AvailableForSaleSecuritiesContinuousUnrealizedLossPositionTwelveMonthsOrLongerFairValue
us-gaap:FinancialInstrument

us-gaap:AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsAmortizedCost

us-gaap:AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsFairValue

us-gaap:AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsAmortizedCost

us-gaap:AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsFairValue

us-gaap:AvailableForSaleSecuritiesDebtMaturitiesAfterTenYearsAmortizedCost

us-gaap:AvailableForSaleSecuritiesDebtMaturitiesAfterTenYearsFairValue

us-gaap:AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearAmortizedCost

us-gaap:AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearFairValue

us-gaap:AvailableForSaleSecuritiesDebtMaturitiesWithoutSingleMaturityDateAmortizedCost

us-gaap:AvailableForSaleSecuritiesDebtMaturitiesWithoutSingleMaturityDateFairValue

us-gaap:AvailableforsaleSecuritiesInUnrealizedLossPositionsQualitativeDisclosureNumberOfPositions1

us-gaap:BankOwnedLifeInsurance

us-gaap:BuildingsAndImprovementsGross

us-gaap:BusinessAcquisitionPurchasePriceAllocationGoodwillExpectedTaxDeductibleAmount

us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAssets

us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCapitalLeaseObligation

us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCashAndEquivalents

us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedDeferredTaxAssets

us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibles

us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLiabilities

us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNet

us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNoncurrentLiabilitiesLongTermDebt

us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNoncurrentLiabilitiesOther

us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedOtherNoncurrentAssets

us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedPropertyPlantAndEquipment
dei:LegalEntity
us-gaap:Capital
us-gaap:ConsolidatedEntities

us-gaap:CapitalRequiredForCapitalAdequacyToRiskWeightedAssets

us-gaap:CapitalRequiredToBeWellCapitalizedToRiskWeightedAssets

us-gaap:CashAndDueFromBanks

us-gaap:CashCashEquivalentsAndFederalFundsSold
dei:LegalEntity
us-gaap:CommonEquityTierOneCapitalRatio
us-gaap:ConsolidatedEntities

us-gaap:CommonEquityTierOneCapitalRequiredForCapitalAdequacy

us-gaap:CommonEquityTierOneCapitalRequiredToBeWellCapitalized

us-gaap:ContinuingInvolvementWithTransferredFinancialAssetsPrincipalAmountOutstanding
us-gaap:DebtInstrument
us-gaap:DebtInstrumentFaceAmount
us-gaap:DebtInstrument, us-gaap:LongtermDebtType
us-gaap:FairValueByLiabilityClass
us-gaap:DebtInstrumentMeasurementInput

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

us-gaap:DeferredIncomeTaxAssetsNet

us-gaap:DeferredIncomeTaxLiabilities

us-gaap:DeferredTaxAssetsGross

us-gaap:DeferredTaxAssetsOperatingLossCarryforwards
us-gaap:IncomeTaxAuthority

us-gaap:DeferredTaxAssetsOther

us-gaap:DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost

us-gaap:DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsProvisionForLoanLosses

us-gaap:DeferredTaxLiabilitiesDeferredExpenseReservesAndAccruals

us-gaap:DeferredTaxLiabilitiesFinancingArrangements

us-gaap:DeferredTaxLiabilitiesLeasingArrangements

us-gaap:DeferredTaxLiabilitiesOther

us-gaap:DeferredTaxLiabilitiesOtherComprehensiveIncome

us-gaap:DeferredTaxLiabilitiesPropertyPlantAndEquipment

us-gaap:DeferredTaxLiabilitiesTaxDeferredIncome

us-gaap:DefinedBenefitPlanAccumulatedBenefitObligation

us-gaap:DefinedBenefitPlanAssumptionsUsedCalculatingBenefitObligationDiscountRate

us-gaap:DefinedBenefitPlanAssumptionsUsedCalculatingBenefitObligationRateOfCompensationIncrease

us-gaap:DefinedBenefitPlanBenefitObligation

us-gaap:Deposits
us-gaap:ConsolidationItems
us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments
us-gaap:ConsolidationItems, us-gaap:StatementGeographical
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementBasis, us-gaap:FairValueByMeasurementFrequency
us-gaap:FairValueByMeasurementBasis, us-gaap:FairValueByMeasurementFrequency

us-gaap:DepositsSavingsDeposits

us-gaap:DepositsWholesale
us-gaap:DerivativeInstrumentRisk
us-gaap:DerivativeAssetNotSubjectToMasterNettingArrangement
us-gaap:CounterpartyName
us-gaap:DerivativeAssets
us-gaap:DerivativeInstrumentsGainLossByHedgingRelationship
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementBasis, us-gaap:FairValueByMeasurementFrequency
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency
us-gaap:FairValueByMeasurementBasis, us-gaap:FairValueByMeasurementFrequency
us-gaap:FairValueByMeasurementFrequency

us-gaap:DerivativeCollateralRightToReclaimSecurities

us-gaap:DerivativeFairValueOfDerivativeAsset
us-gaap:DerivativeInstrumentRisk
us-gaap:DerivativeInstrumentRisk, us-gaap:DerivativeInstrumentsGainLossByHedgingRelationship
us-gaap:DerivativeInstrumentsGainLossByHedgingRelationship

us-gaap:DerivativeFairValueOfDerivativeAssetAmountOffsetAgainstCollateral
us-gaap:DerivativeInstrumentRisk

us-gaap:DerivativeFairValueOfDerivativeLiability
us-gaap:DerivativeInstrumentRisk
us-gaap:DerivativeInstrumentRisk, us-gaap:DerivativeInstrumentsGainLossByHedgingRelationship
us-gaap:DerivativeInstrumentsGainLossByHedgingRelationship

us-gaap:DerivativeFairValueOfDerivativeLiabilityAmountOffsetAgainstCollateral
us-gaap:DerivativeInstrumentRisk
us-gaap:DerivativeInstrumentsGainLossByHedgingRelationship
us-gaap:DerivativeLiabilities
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementBasis, us-gaap:FairValueByMeasurementFrequency
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency
us-gaap:FairValueByMeasurementBasis, us-gaap:FairValueByMeasurementFrequency
us-gaap:FairValueByMeasurementFrequency

us-gaap:DerivativeLiabilityFairValueOfCollateral
us-gaap:DerivativeInstrumentRisk
us-gaap:DerivativeLiabilityNotSubjectToMasterNettingArrangement
us-gaap:CounterpartyName
us-gaap:DerivativeNetLiabilityPositionAggregateFairValue
us-gaap:DerivativeInstrumentRisk, us-gaap:DerivativeInstrumentsGainLossByHedgingRelationship
us-gaap:DerivativeNotionalAmount
us-gaap:DerivativeInstrumentsGainLossByHedgingRelationship

us-gaap:EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedShareBasedAwardsOtherThanOptions

us-gaap:EquitySecuritiesFvNiCost
us-gaap:FinancialInstrument

us-gaap:FairValueDisclosureOffbalanceSheetRisksFaceAmountLiability
us-gaap:OtherCommitments

us-gaap:FairValueLiabilitiesMeasuredOnRecurringBasisSubordinatedDebtObligations
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByLiabilityClass
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementBasis, us-gaap:FairValueByMeasurementFrequency
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency
us-gaap:FairValueByMeasurementBasis, us-gaap:FairValueByMeasurementFrequency
us-gaap:FinancialInstrument
us-gaap:FinancialInstrument
us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetValue
us-gaap:FairValueByLiabilityClass, us-gaap:FairValueByMeasurementFrequency
us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationsRecurringBasisLiabilityValue

us-gaap:FairValueOptionLoansHeldAsAssets90DaysOrMorePastDue

us-gaap:FairValueOptionLoansHeldAsAssets90DaysOrMorePastDueAggregateDifference

us-gaap:FairValueOptionLoansHeldAsAssetsAggregateDifference

us-gaap:FederalHomeLoanBankAdvancesMaturitiesSummaryDueWithinOneYearOfBalanceSheetDate

us-gaap:FinancingReceivableAllowanceForCreditLosses
us-gaap:FinancingReceivablePortfolioSegment

us-gaap:FinancingReceivableAllowanceForCreditLossesCollectivelyEvaluatedForImpairment
us-gaap:FinancingReceivablePortfolioSegment

us-gaap:FinancingReceivableAllowanceForCreditLossesIndividuallyEvaluatedForImpairment1
us-gaap:FinancingReceivablePortfolioSegment

us-gaap:FinancingReceivableCollectivelyEvaluatedForImpairment
us-gaap:FinancingReceivablePortfolioSegment

us-gaap:FinancingReceivableIndividuallyEvaluatedForImpairment
us-gaap:FinancingReceivablePortfolioSegment

us-gaap:FinancingReceivableModificationsRecordedInvestment
us-gaap:FinancingReceivablePortfolioSegment

us-gaap:FinancingReceivableNonaccrualNoAllowance
us-gaap:FinancingReceivablePortfolioSegment

us-gaap:FinancingReceivableOriginatedFiveOrMoreYearsBeforeLatestFiscalYear

us-gaap:FinancingReceivableOriginatedFourYearsBeforeLatestFiscalYear

us-gaap:FinancingReceivableOriginatedInCurrentFiscalYear

us-gaap:FinancingReceivableOriginatedInFiscalYearBeforeLatestFiscalYear

us-gaap:FinancingReceivableOriginatedThreeYearsBeforeLatestFiscalYear

us-gaap:FinancingReceivableOriginatedTwoYearsBeforeLatestFiscalYear

us-gaap:FinancingReceivableRecordedInvestment90DaysPastDueAndStillAccruing
us-gaap:FinancingReceivablePortfolioSegment

us-gaap:FinancingReceivableRecordedInvestmentCurrent

us-gaap:FinancingReceivableRecordedInvestmentNonaccrualStatus

us-gaap:FinancingReceivableRecordedInvestmentPastDue

us-gaap:FinancingReceivableRevolving

us-gaap:FiniteLivedIntangibleAssetsAccumulatedAmortization
us-gaap:FiniteLivedIntangibleAssetsByMajorClass

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseYearFive

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseYearFour

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseYearThree

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo

us-gaap:FiniteLivedIntangibleAssetsGross
us-gaap:FiniteLivedIntangibleAssetsByMajorClass
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency
us-gaap:ForeclosedAssets
us-gaap:FairValueByMeasurementFrequency
us-gaap:DerivativeInstrumentsGainLossByHedgingRelationship
us-gaap:ForeignCurrencyDerivativeInstrumentsNotDesignatedAsHedgingInstrumentsAssetAtFairValue

us-gaap:HedgedAssetFairValueHedge

us-gaap:HedgedAssetFairValueHedgeCumulativeIncreaseDecrease

us-gaap:HedgedAssetFairValueHedgeLastOfLayerCumulativeIncreaseDecrease

us-gaap:HedgedLiabilityFairValueHedge

us-gaap:HedgedLiabilityFairValueHedgeCumulativeIncreaseDecrease

us-gaap:HeldToMaturitySecurities
us-gaap:ExternalCreditRatingByGrouping
us-gaap:ExternalCreditRatingByGrouping, us-gaap:FinancialInstrument
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementBasis, us-gaap:FairValueByMeasurementFrequency
us-gaap:FairValueByMeasurementBasis, us-gaap:FairValueByMeasurementFrequency
us-gaap:FinancialInstrument

us-gaap:HeldToMaturitySecuritiesAccumulatedUnrecognizedHoldingGain
us-gaap:FinancialInstrument

us-gaap:HeldToMaturitySecuritiesAccumulatedUnrecognizedHoldingLoss
us-gaap:FinancialInstrument

us-gaap:HeldToMaturitySecuritiesContinuousUnrealizedLossPositionAccumulatedLoss
us-gaap:FinancialInstrument

us-gaap:HeldToMaturitySecuritiesContinuousUnrealizedLossPositionFairValue
us-gaap:FinancialInstrument

us-gaap:HeldToMaturitySecuritiesContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss
us-gaap:FinancialInstrument

us-gaap:HeldToMaturitySecuritiesContinuousUnrealizedLossPositionLessThanTwelveMonthsFairValue
us-gaap:FinancialInstrument

us-gaap:HeldToMaturitySecuritiesDebtMaturitiesAfterOneThroughFiveYearsFairValue

us-gaap:HeldToMaturitySecuritiesDebtMaturitiesAfterOneThroughFiveYearsNetCarryingAmount

us-gaap:HeldToMaturitySecuritiesDebtMaturitiesAfterTenYearsFairValue

us-gaap:HeldToMaturitySecuritiesDebtMaturitiesAfterTenYearsNetCarryingAmount

us-gaap:HeldToMaturitySecuritiesDebtMaturitiesWithinOneYearFairValue

us-gaap:HeldToMaturitySecuritiesDebtMaturitiesWithinOneYearNetCarryingAmount

us-gaap:HeldToMaturitySecuritiesDebtMaturitiesWithoutSingleMaturityDateFairValue

us-gaap:HeldToMaturitySecuritiesDebtMaturitiesWithoutSingleMaturityDateNetCarryingAmount

us-gaap:HeldToMaturitySecuritiesFairValue
us-gaap:FinancialInstrument

us-gaap:IndefiniteLivedTradeNames

us-gaap:InterestBearingDepositLiabilities

us-gaap:InterestBearingDepositsInBanks

us-gaap:InterestBearingDomesticDepositDemand
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementBasis, us-gaap:FairValueByMeasurementFrequency
us-gaap:InterestPayableCurrent
us-gaap:FairValueByMeasurementBasis, us-gaap:FairValueByMeasurementFrequency

us-gaap:InterestReceivable

us-gaap:InvestmentRelatedLiabilities

us-gaap:JuniorSubordinatedDebentureOwedToUnconsolidatedSubsidiaryTrust
us-gaap:BusinessAcquisition
us-gaap:DebtInstrument
us-gaap:FinancialInstrument

us-gaap:LandAndLandImprovements

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths

us-gaap:LifeInsuranceCorporateOrBankOwnedAmount
us-gaap:CreditFacility
us-gaap:LineOfCreditFacilityMaximumBorrowingCapacity
us-gaap:CreditFacility
us-gaap:LineOfCreditFacilityRemainingBorrowingCapacity
us-gaap:LineOfCreditFacility

us-gaap:LoansAndLeasesReceivableAllowance
us-gaap:ConsolidationItems
us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments
us-gaap:ConsolidationItems, us-gaap:StatementGeographical

us-gaap:LoansAndLeasesReceivableCollateralForSecuredBorrowings
us-gaap:Collateral
us-gaap:Collateral, us-gaap:FinancingReceivablePortfolioSegment
us-gaap:FinancingReceivablePortfolioSegment

us-gaap:LoansAndLeasesReceivableDeferredIncome

us-gaap:LoansAndLeasesReceivableImpairedCommitmentToLend

us-gaap:LoansAndLeasesReceivableNetOfDeferredIncome

us-gaap:LoansAndLeasesReceivableNetReportedAmount
us-gaap:ConsolidationItems
us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementBasis, us-gaap:FairValueByMeasurementFrequency
us-gaap:FairValueByMeasurementBasis, us-gaap:FairValueByMeasurementFrequency

us-gaap:LoansAndLeasesReceivableRelatedParties
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency
us-gaap:LoansHeldForSaleFairValueDisclosure
us-gaap:FairValueByMeasurementFrequency

us-gaap:LoansReceivableHeldForSaleAmount
us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementBasis, us-gaap:FairValueByMeasurementFrequency
us-gaap:FairValueByMeasurementBasis, us-gaap:FairValueByMeasurementFrequency
us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable
us-gaap:FinancingReceivablesPeriodPastDue
us-gaap:LoansInsuredOrGuaranteedByGovernmentAuthorities
us-gaap:LongtermDebtType
us-gaap:LongtermDebtWeightedAverageInterestRate
us-gaap:OtherCommitments
us-gaap:LossContingencyAccrualAtCarryingValue

us-gaap:NoninterestBearingDepositLiabilities

us-gaap:NotesPayable

us-gaap:OffBalanceSheetCreditLossLiability

us-gaap:OperatingLeaseWeightedAverageDiscountRatePercent
us-gaap:IncomeTaxAuthority
us-gaap:OperatingLossCarryforwards

us-gaap:OtherBorrowings
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementBasis, us-gaap:FairValueByMeasurementFrequency
us-gaap:FairValueByMeasurementBasis, us-gaap:FairValueByMeasurementFrequency

us-gaap:OtherCommitmentDueAfterFifthYear
us-gaap:OtherCommitments

us-gaap:OtherCommitmentDueInFourthAndFifthYear
us-gaap:OtherCommitments

us-gaap:OtherCommitmentDueInNextTwelveMonths
us-gaap:OtherCommitments

us-gaap:OtherCommitmentDueInSecondAndThirdYear
us-gaap:OtherCommitments

us-gaap:OtherForeclosedAssets
us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments
us-gaap:ConsolidationItems, us-gaap:StatementGeographical

us-gaap:OtherLiabilities

us-gaap:OtherShortTermBorrowings

us-gaap:PledgedFinancialInstrumentsNotSeparatelyReportedOtherDebtSecuritiesAvailableForSaleOrHeldForInvestment

us-gaap:PrepayableFinancialAssetClosedPortfolioLastOfLayerAmortizedCost

us-gaap:ReceivableWithImputedInterestPremium

us-gaap:RelatedPartyDepositLiabilities

us-gaap:RestrictedInvestments
dei:LegalEntity
us-gaap:RiskWeightedAssets
us-gaap:ConsolidatedEntities

us-gaap:SecuritiesSoldUnderAgreementsToRepurchase
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementBasis, us-gaap:FairValueByMeasurementFrequency
us-gaap:FairValueByMeasurementBasis, us-gaap:FairValueByMeasurementFrequency

us-gaap:SeniorNotes

us-gaap:ServicingAsset
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementBasis, us-gaap:FairValueByMeasurementFrequency
us-gaap:FairValueByMeasurementBasis, us-gaap:FairValueByMeasurementFrequency

us-gaap:ServicingAssetAtFairValueAmount
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency
us-gaap:FairValueByMeasurementFrequency

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant

us-gaap:ShortTermBorrowings

us-gaap:SubordinatedDebt

us-gaap:SubordinatedLongTermDebt

us-gaap:TierOneLeverageCapitalRequiredForCapitalAdequacyToAverageAssets

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

us-gaap:TierOneRiskBasedCapitalRequiredForCapitalAdequacyToRiskWeightedAssets

us-gaap:TierOneRiskBasedCapitalRequiredToBeWellCapitalizedToRiskWeightedAssets

us-gaap:TimeDepositMaturitiesYearFive

us-gaap:TimeDepositMaturitiesYearFour

us-gaap:TimeDepositMaturitiesYearThree

us-gaap:TimeDepositMaturitiesYearTwo

us-gaap:TimeDeposits

us-gaap:UnrecognizedTaxBenefitsIncomeTaxPenaltiesAccrued

us-gaap:UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate

us-gaap:VariableInterestEntityEntityMaximumLossExposureAmount

wal:BorrowingsandQualifyingDebt
us-gaap:ConsolidationItems
us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments

wal:BusinessCombinationEliminationOfPreExistingDebtAndOther

wal:BusinessCombinationFairMarketValueAdjustmentonJuniorSubordinatedDebentureOwedtoUnconsolidatedSubsidiaryTrust

wal:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLiabilityForLoansEligibleForRepurchase

wal:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLoansEligibleForRepurchase

wal:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLoansHeldForSale

wal:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedOperatingRightOfUseAsset

wal:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedServicingAssets
us-gaap:BusinessAcquisition
wal:BusinessCombinationRecognizedIdentifiableAssetsAcquiredandLiabilitiesAssumedJuniorSubordinatedDebt

wal:COVID19RelatedLoanModifications

wal:CashCashEquivalentsandInvestmentSecurities
us-gaap:ConsolidationItems
us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments
us-gaap:ConsolidationItems, us-gaap:StatementGeographical

wal:CertificatesofDepositCDARS

wal:CollateralDependentLoansAllowance
us-gaap:FairValueByFairValueHierarchyLevel
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency
wal:CollateralDependentLoansNetofAllowance
us-gaap:FairValueByMeasurementFrequency
us-gaap:CounterpartyName
wal:CreditRiskDerivativeCollateralPledged

wal:DebtSecuritiesHeldToMaturityNetOfAllowance

wal:DebtSecuritiesHeldtomaturityNet

wal:DeferredTaxAssetsInsurancePremiums

wal:DeferredTaxAssetsLeasingArrangements

wal:DeferredTaxAssetsPassthroughIncome

wal:DeferredTaxLiabilitiesLeasingBasisDifferences

wal:DeferredTaxLiabilitiesUnearnedPremiums

wal:DepositsICS
us-gaap:DerivativeInstrumentsGainLossByHedgingRelationship
wal:DerivativeNettingAdjustments

wal:DerivativeNettingAdjustmentsAssets
us-gaap:DerivativeInstrumentRisk

wal:DerivativeNettingAdjustmentsLiabilities
us-gaap:DerivativeInstrumentRisk

wal:EquitysecuritiesFVNIAccumulatedGrossUnrealizedGainBeforeTax
us-gaap:FinancialInstrument

wal:EquitysecuritiesFVNIAccumulatedGrossUnrealizedLossBeforeTax
us-gaap:FinancialInstrument
us-gaap:ConsolidationItems
wal:ExcessFundsProvidedbyUsedinSegmentBasis
us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments
us-gaap:ConsolidationItems, us-gaap:StatementGeographical

wal:FairValueOptionLoansHeldAsAssets

wal:FairValueOptionLoansHeldAsAssetsCurrentThrough89Days

wal:FairValueOptionLoansHeldAsAssetsCurrentThrough89DaysAggregateDifference
us-gaap:FairValueByMeasurementFrequency
wal:FairValueOptionLoansHeldAsAssetsUPB

wal:FairValueOptionLoansHeldAsAssetsUPB90DaysOrMorePastDue

wal:FairValueOptionLoansHeldAsAssetsUPBCurrentThrough89Days

wal:FinancingReceivableCARESActModification
us-gaap:FinancingReceivablePortfolioSegment

wal:FinancingReceivableNonaccrualWithAllowance
us-gaap:FinancingReceivablePortfolioSegment

wal:FinancingReceivableTroubledDebtRestructuredLoansNumberOfOutstandingContracts
us-gaap:FinancingReceivablePortfolioSegment

wal:IndefiniteLivedTradeNameGross
us-gaap:ConsolidatedEntities
wal:InvestmentsinandAdvancetoBankSubsidiaries
us-gaap:ConsolidatedEntities
wal:InvestmentsinandAdvancetoNonBankSubsidiaries

wal:Lesseeoperatingleaseleasesnotyetcommencedaggregatedcommitment

wal:LoanandLeasesReceivableCommitmentOutstandingRelatedParties

wal:LoansInForbearance

wal:LoansandLeasesReceivableIncludingHeldforSaleNet
us-gaap:ConsolidationItems
us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments
us-gaap:ConsolidationItems, us-gaap:StatementGeographical

wal:MSRLoanSalesReceivable

wal:MSRSalesUPBOfUnderlyingLoans
us-gaap:CounterpartyName
wal:NetExposureAfterNettingAdjustmentsAndCollateral

wal:Noninterestbearingdepositearningscredit

wal:OtherAssetsSegment
us-gaap:ConsolidationItems
us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments
us-gaap:ConsolidationItems, us-gaap:StatementGeographical
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementBasis, us-gaap:FairValueByMeasurementFrequency
wal:OtherBorrowingsFairValueDisclosure
us-gaap:FairValueByMeasurementBasis, us-gaap:FairValueByMeasurementFrequency

wal:OtherLiabilitiesSegment
us-gaap:ConsolidationItems
us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments
us-gaap:ConsolidationItems, us-gaap:StatementGeographical

wal:PercentageOfCommercialRealEstateLoansOccupiedByOwners

wal:QualifyingDebt
us-gaap:ConsolidatedEntities

wal:ReservesAllocatedToCustomersWhoseLoanTermsModifiedInTroubledDebtRestructurings

wal:SensitivityAnalysisOfFairValueTransferorsInterestsInTransferredFinancialAssetsImpactOf10PercentDecreaseCostOfService

wal:SensitivityAnalysisOfFairValueTransferorsInterestsInTransferredFinancialAssetsImpactOf10PercentIncreaseCostOfService

wal:SensitivityAnalysisOfFairValueTransferorsInterestsInTransferredFinancialAssetsImpactOf1PercentAdverseChangeInPrepaymentSpeed

wal:SensitivityAnalysisOfFairValueTransferorsInterestsInTransferredFinancialAssetsImpactOf1PercentFavorableChangeInPrepaymentSpeed

wal:SensitivityAnalysisOfFairValueTransferorsInterestsInTransferredFinancialAssetsImpactOf50BasisPointAdverseInterestRateChange

wal:SensitivityAnalysisOfFairValueTransferorsInterestsInTransferredFinancialAssetsImpactOf50BasisPointDiscountRateDecrease

wal:SensitivityAnalysisOfFairValueTransferorsInterestsInTransferredFinancialAssetsImpactOf50BasisPointDiscountRateIncrease

wal:SensitivityAnalysisOfFairValueTransferorsInterestsInTransferredFinancialAssetsImpactOf50BasisPointFavorableInterestRateChange

wal:ServicingAdvancesAllowanceForOtherCreditLosses
dei:LegalEntity
wal:TangibleAverageAssets
us-gaap:ConsolidatedEntities

wal:TimeDeposits250000ormore

wal:TimeDepositsLessthan250000

wal:Unrealizedgainorlossonjuniorsubordinateddebtcarriedatfairvalue
us-gaap:OtherCommitments
wal:UnsecuredLettersOfCredit
us-gaap:OtherCommitments
wal:UnsecuredLoanCommitments

Plots across concepts


IncomeStatement
Other Comprehensive Income Loss Net Of Tax
Expenses
Interest Expense
Balance Sheet
Finite Lived Intangible Assets Net
Assets
Operating Lease Right Of Use Asset
Current Assets
Cash And Cash Equivalents At Carrying Value
NonCurrent Assets
Finite Lived Intangible Assets Net
PropertyPlantAndEquipmentNet
Accumulated Depreciation Depletion And Amortization Property Plant And Equipment
Liabilities
Operating Lease Liability
Noncurrent Liabilities
Long Term Debt
Stockholders Equity
Accumulated Other Comprehensive Income Loss Net Of Tax
Per Share
Common Stock Dividends Per Share Cash Paid
CashFlow
Net Cash Provided By Used In Operating Activities
NetCashProvidedByUsedInOperatingActivities
Net Cash Provided By Used In Operating Activities
NetCashProvidedByUsedInFinancingActivities
Payments For Repurchase Of Common Stock
Shares
Weighted Average Number Of Shares Outstanding Basic
DividendsAndRepurchase
Payments For Repurchase Of Common Stock
LesseeOperatingLeaseLiabilityPaymentsDue
Lessee Operating Lease Liability Undiscounted Excess Amount
FiniteLivedIntangibleAssets
Finite Lived Intangible Assets Net
BanksAndOrInsurance
Securities Sold Under Agreements To Repurchase
AssetsBanks
Property Plant And Equipment Net
LiabilitiesBanks
Short Term Borrowings

Tables

  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
us-gaap:CommonStockValue ██▇▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁1687.61608.21390.90.010.010.010.010.010.010.010.010.010.010.010.010.010.010.010.010.010.010.010.010.010.010.0090.0090.0090.0090.0090.0090.0090.0090.0090.0090.0080.0080.0080.0080.0080.008NA0.008NANA
 us-gaap:SharesIssued us-gaap:StatementEquityComponents us-gaap:CommonStock█▇▇▇▇▇▇▇▇████████████▇▇▇▇▃▃▃▃▃▂▂▂▂▂▁▁▁▁▁▁104.2103.4100.8100.825100.849101.153102.524102.639103.654104.483104.949105.861105.876105.861105.487105.493105.429105.428105.071105.071105.084103.514103.087102.305102.29189.1888.69187.84987.77487.55487.18687.09986.99787.07986.46583.45583.15883.14582.36282.26382.139NA81.669NANA
us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding █▁103.4101.4NA100.05999.993101.675NA102.451103.501104.475NA105.448105.42105.324NA104.942105.045104.836NA104.564103.472102.538NA101.5288.68288.452NA87.57287.33387.123NA86.76986.52485.98NA82.29481.95582.227NA81.12581.22381.013NA75.55472.16
us-gaap:WeightedAverageNumberOfSharesOutstandingBasic █▁102.7100.8NA99.8599.792101.328NA102.041103.019104.033NA104.768104.691104.53NA104.221104.162103.987NA103.768102.688101.895NA100.77688.17787.941NA86.72386.50186.256NA85.79985.65985.324NA81.75881.5981.359NA80.93180.88380.794NA75.55472.16
us-gaap:EarningsPerShareBasic █▇▇▅▄▄▅▅▅▅▅▄▄▄▄▄▃▃▃▃▃▃▃▃▂▂▂▂▂▂▂▂▂▂▂▁▁▁▁▁▁▁2.181.911.941.360.930.831.261.251.191.161.141.061.00.970.860.80.770.710.670.650.60.60.580.590.390.460.460.470.410.350.360.320.390.240.380.180.150.120.070.040.050.03NANANA
us-gaap:EarningsPerShareDiluted █▇▇▅▄▄▅▅▅▅▅▄▄▄▄▃▃▃▃▃▃▃▃▃▂▂▂▂▂▂▂▂▂▂▂▁▁▁▁▁▁▁2.171.91.931.360.930.831.251.241.191.161.131.050.990.960.850.790.760.70.670.640.60.60.570.580.390.450.460.460.40.350.360.320.390.240.370.180.150.120.070.040.050.03NANANA
 us-gaap:TierOneRiskBasedCapitalToRiskWeightedAssets dei:LegalEntity wal:WesternAllianceBankNANA9.9e-06NANANA1.06e-07NANANA1.05e-07NANANA1.0699999999999999e-07NANANA1.08e-07NANANA9.3e-089e-089.3e-089.5e-081.0000000000000001e-07NANANA1.05e-07NANANA9.2e-08NANANANANANANANANANA
 us-gaap:TierOneRiskBasedCapitalToRiskWeightedAssets us-gaap:ConsolidatedEntities srt:ParentCompanyNANA1.0199999999999999e-05NANANA1.09e-07NANANA1.11e-07NANANA1.08e-07NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:CapitalToRiskWeightedAssets dei:LegalEntity wal:WesternAllianceBankNANA1.1599999999999999e-05NANANA1.19e-07NANANA1.19e-07NANANA1.23e-07NANANA1.26e-07NANANA1.14e-071.11e-071.14e-071.06e-071.12e-07NANANA1.17e-07NANANA1.09e-07NANANANANANANANANANA
 us-gaap:CapitalToRiskWeightedAssets us-gaap:ConsolidatedEntities srt:ParentCompanyNANA1.25e-05NANANA1.28e-07NANANA1.3200000000000002e-07NANANA1.33e-07NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
 us-gaap:AllocatedShareBasedCompensationExpense us-gaap:AwardType us-gaap:PerformanceShares█▆▅▅▅▅█▄▃▅▄▄▄▄▆▆▄▃▇▃▃▃▃▄▂▂▄▁▁▁2.52.11.81.81.81.72.41.61.31.71.61.51.61.62.01.91.41.32.21.21.21.21.21.61.01.01.40.70.70.7NANANANANANANANANANANANANANANA
 us-gaap:AllocatedShareBasedCompensationExpense us-gaap:AwardType us-gaap:RestrictedStock█▇▇▆▇▆▅▆▇▆▆▅▆▆▅▄▆▆▂▄▅▅▄▄▄▄▁▅▆▂6.65.65.04.55.94.93.74.05.44.34.23.44.74.33.02.74.14.50.52.73.73.82.31.82.62.5-0.93.24.20.3NA1.30.51.0NA1.12.30.9NA0.80.8NANANANA
 us-gaap:AllocatedShareBasedCompensationExpense us-gaap:TitleOfIndividual,us-gaap:AwardType srt:ExecutiveOfficer,us-gaap:RestrictedStock▁▁▁▁▁▁▃▆▆▆██0.30.30.30.30.30.30.40.50.50.50.60.6NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:ComprehensiveIncomeNetOfTax █▄▇▅▅▄▄▅▅▅▅▄▄▃▃▄▃▃▂▃▃▃▃▃▂▃▃▂▃▂▂▂▂▂▂▂▂▂▂▂▂▁▁▁▁268.4120.1207.318140.677129.45296.453117.473136.593157.508146.227155.82792.07595.02663.44177.99784.53283.6180.90328.71356.81874.90772.40545.50964.42926.64446.97447.56541.9355.14141.524.30924.43816.06119.94328.23123.27717.38316.7615.45315.86115.175-0.166-17.64-3.847-0.198
us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments █▇▇▅▄▄▅▅▅▅▅▄▄▄▄▄▄▄▄▄▃▃▃▃▂▃▃▃▂▂▂▂▂▂▂▂▂▂▂▂▂▂▁▁▁276.2234.4240.6166.591112.871102.472154.301155.908147.686146.332139.995118.615130.004121.714124.319117.757111.93597.84696.16496.22387.94180.85177.87478.31745.31854.30854.5253.86846.74842.36334.39337.50941.00227.73441.42822.45319.44115.9639.60821.0069.9849.741-14.7392.5611.839
us-gaap:IncomeTaxExpenseBenefit █▇▇▅▄▄▅▅▅▅▄▂▅▄▆▆▅▅▅▅▅▄▄▄▃▃▃▃▃▃▂▃▂▂▂▂▂▂▂▂▂▂▁▂▂52.441.947.030.82219.59918.50826.23628.53324.7525.53620.9097.49225.32520.81434.97334.89931.96424.48926.36429.17126.32719.51919.34819.18310.59914.11814.11112.94910.70610.6242.3419.2886.8176.8087.5096.7525.2594.4412.0117.5143.2954.029-4.58-0.079-0.19
us-gaap:IncomeTaxesPaidNet █▅▄▄▄▃▃▃▄▁▃▃▃▄80.330.87.13120.71215.0411.3162.8250.7667.625-34.6194.102-0.1344.9119.881NANANANANANANANANANANANANANANANANA8.6710.1251.45NA0.00.251.04NA0.0NANANA0.0NA
us-gaap:InterestAndFeeIncomeLoansAndLeases █▇▇▆▆▆▆▆▆▆▅▅▅▄▄▄▄▄▄▄▃▃▃▃▂▂▂▂▂▂▂▁▁▁▁▁▁▁▁▁▁▁▁▁▁353.8298.4301.215276.623289.576276.886284.971278.932270.349258.818247.874234.709222.035205.959200.204191.096183.657172.553168.881167.914160.015139.786137.471133.087105.468100.39199.09994.43690.58386.80486.90283.99481.09374.72575.30369.5868.34267.7667.10265.5464.91963.88264.98564.27364.201
us-gaap:InterestExpense ▅▃▃▃▃▆▇██▇▆▅▄▃▃▃▂▂▂▂▂▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▂▂▂▂▂28.016.816.820.10519.83838.19643.44749.18648.16743.83238.45531.17827.49420.47717.4316.25314.2112.95612.14212.20310.4038.5457.9888.8267.97.8548.0067.4818.0757.9247.6018.1217.1336.9056.8886.7237.0417.388.1479.54810.3610.86811.46411.23712.544
us-gaap:InterestIncomeExpenseNet █▇▇▆▆▆▆▆▅▅▅▅▅▅▄▄▄▄▄▄▃▃▃▃▂▂▂▂▂▂▂▂▂▁▁▁▁▁▁▁▁▁▁▁▁370.5317.3314.8284.738298.4269.02271.973266.422254.681247.336243.513234.038224.108214.22211.029201.583192.743179.309175.269172.547163.686145.711143.343137.407108.718103.108102.14598.07393.89890.77789.98184.55982.15276.20377.45571.94670.80570.05768.69964.58563.28661.09860.9159.46857.456
us-gaap:NetIncomeLoss █▇▇▅▄▄▅▅▅▅▅▅▄▄▄▄▄▄▃▃▃▃▃▃▂▃▃▃▂▂▂▂▂▂▂▂▂▂▂▂▂▁▁▁▁223.8192.5193.6135.76993.27283.964128.065127.375122.936120.796119.086111.123104.679100.989.34682.85879.97173.35769.867.05261.61461.33258.52659.13434.71940.1940.40940.91935.53831.08531.35128.19234.01620.96432.11515.45813.96111.37.10113.0116.2295.153-10.8162.0091.227
us-gaap:NetIncomeLossAvailableToCommonStockholdersBasic █▇▇▅▄▄▅▅▅▅▅▅▄▄▄▄▄▄▃▃▃▃▃▃▂▃▃▃▂▂▂▂▂▂▂▂▂▂▂▁▂▁▁▁▁223.8192.5193.595135.76993.27283.964128.064127.375122.936120.796119.086111.123104.679100.989.30682.85879.97173.35769.867.05261.61461.33258.37558.95834.47240.01440.0840.56635.18630.73230.99927.8433.66320.61131.76215.10612.6369.5375.323.5923.7262.65-13.299-0.457-1.239
us-gaap:OtherComprehensiveIncomeLossNetOfTax █▁▆▆▇▆▅▆▇▇█▄▅▃▅▅▆▆▃▅▆▆▄▆▅▆▆▅▇▆▅▅▄▅▅▆▆▆▅▆▆44.6-72.413.7234.90836.1812.489-10.5919.21834.57225.43136.741-19.048-9.653-37.459-11.3091.6743.6397.546-41.087-10.23413.29311.073-14.6925.295-8.0756.7847.1561.01119.60310.415-7.042-3.754-17.955-1.021-3.8847.8193.4225.461-1.6482.858.946NANANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
us-gaap:Assets █▇▆▅▅▅▄▄▄▄▄▄▃▃▃▃▃▃▃▃▃▂▂▂▂▂▂▂▂▂▁▁▁▁▁▁▁▁▁▁▁49069.043397.036461.033335.50631906.39629158.22726821.94826324.24525314.78523792.84623109.48622176.14721367.45220760.73120329.119922.22118844.718122.50617200.817042.616728.76715248.03914275.08913955.5713470.10411251.94310600.49810288.82410023.5879746.6249307.0958921.4298593.6848174.1047622.6377403.6037163.5726925.2926844.5416545.896508.089NA6193.883NANA
us-gaap:Liabilities █▇▆▅▅▅▄▄▄▄▄▃▃▃▃▃▃▃▃▃▃▂▂▂▂▂▂▂▂▂▁▁▁▁▁▁▁▁▁▁▁45034.539684.333047.530111.4628803.98226158.59423805.223401.18222463.52121072.22620495.75219687.75418975.76818466.96818099.417776.59416786.07116153.51415309.315185.24814932.55713587.87612683.58712371.87211955.3610200.6139599.579285.7029065.9238851.8198451.8448095.1417794.1597392.8096863.0216705.5926491.4526271.2476207.8585913.6355892.436NA5591.709NANA
us-gaap:LiabilitiesAndStockholdersEquity █▇▆▅▅▅▄▄▄▄▄▄▃▃▃▃▃▃▃▃▃▂▂▂▂▂▂▂▂▂▁▁▁▁▁▁▁▁▁▁▁49069.043397.036461.033335.50631906.39629158.22726821.94826324.24525314.78523792.823109.522176.14721367.520760.73120329.119922.218844.718122.50617200.84217042.616728.815248.03914275.08913955.5713470.10411251.94310600.49810288.82410023.5879746.6249307.0958921.4298593.6848174.1047622.6377403.6037163.5726925.2926844.5416545.896508.089NA6193.883NANA
us-gaap:StockholdersEquity █▇▇▆▆▆▆▆▆▅▅▅▅▄▄▄▄▄▄▄▃▃▃▃▃▂▂▂▂▂▁▁▁▁▁▁▁▁▁▁▁4034.53712.73413.53224.0463102.4142999.6333016.7482923.0632851.2642720.622613.72488.42391.72293.7632229.6982145.6272058.71969.01891.51857.41796.211660.1631591.5021583.6981514.7441051.331000.9281003.122957.664894.805855.251826.288799.525781.295759.616698.011672.12654.045636.683632.255615.653NA602.174NANA
 us-gaap:TierOneRiskBasedCapital dei:LegalEntity wal:WesternAllianceBankNANA3078.2NANANA2703.549NANANA2317.745NANANA2003.745NANANA1720.072NANANA1213.3041163.7131142.684965.273945.687NANANA834.56NANANA218.716NANANA188.328NANANANANANA
 us-gaap:TierOneRiskBasedCapital us-gaap:ConsolidatedEntities srt:ParentCompanyNANA3158.2NANANA2775.39NANANA2431.32NANANA2013.744NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
us-gaap:CashAndCashEquivalentsAtCarryingValue ▅█▄▃▃▁▁▂▂▂▁▂▁▁▁▂▂▂▁▁▂▂▁▁▂▁▁▁▁▁▁▁▁▂▁▁▁▁▁▁▂▁▁▂▂3395.85346.52671.71418.7351518.463415.71434.596872.0591067.707785.611498.572700.564506.818439.371416.768650.354606.675647.034284.491356.083696.2431030.977224.64325.41758.336492.402164.396258.77379.282465.925305.514509.033382.951556.275204.625307.917178.92179.753154.995305.968534.56363.338216.746615.955560.623
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
us-gaap:PropertyPlantAndEquipmentGross NANA240.3NANANA217.075NANANA197.834NANANA184.584NANANA189.819NANANA178.384NANANA186.793NANANA187.694NANANA175.358NANANA167.33NANANANANANA
us-gaap:FurnitureAndFixturesGross NANA68.2NANANA53.621NANANA42.729NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:LeaseholdImprovementsGross NANA29.7NANANA28.477NANANA25.919NANANA23.707NANANA22.709NANANA18.958NANANA18.16NANANA15.714NANANA15.863NANANA12.519NANANANANANA
us-gaap:ConstructionInProgressGross NANA17.4NANANA10.449NANANA6.302NANANA1.415NANANA4.84NANANA1.999NANANA0.848NANANA5.335NANANA2.441NANANA0.982NANANANANANA
us-gaap:AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment NANA106.2NANANA91.237NANANA78.36NANANA65.865NANANA69.986NANANA59.849NANANA72.975NANANA67.52NANANA67.448NANANA61.784NANANANANANA
us-gaap:AmortizationOfIntangibleAssets █▂▂▁▁▁▁▁▁▁▂▂▂▂▂▂▂▃▃▃▃▃▃▃▁▁▁▁▁▂▂▂▂▂▂▄▄▄▄▄▄▄▄▄▄1.80.50.480.3730.3740.3730.3860.3870.3870.3870.4050.3980.3990.3980.4340.4890.4880.6890.7090.6970.6970.6970.7040.7040.2810.2810.2810.2810.3020.5970.5970.5970.5970.5970.5960.880.890.890.890.890.890.890.890.9010.907
us-gaap:PropertyPlantAndEquipmentNet █▆▆▅▅▄▄▄▄▃▃▃▃▃▃▃▃▃▃▄▃▃▃▄▃▂▂▂▂▁▃▁▁▁▁▁▁▁▁▁▂150.2138.4134.1128.256127.818125.889125.838125.063123.084119.827119.474119.211115.378116.702118.719120.063120.467120.038119.833121.274120.518119.759118.535121.739116.044114.261113.818112.057109.603106.579120.174105.925106.097107.105107.91106.902106.895105.055105.546106.227109.243NA114.372NANA
us-gaap:Goodwill NANA289.9NANANA289.895289.895289.895289.895289.895289.895289.895289.895289.9289.895289.895289.895290.0289.967289.967288.943289.638289.347282.85123.22423.22423.22423.22423.22423.22423.22423.22423.22423.22423.22425.92525.92525.92525.92525.925NA25.925NANA
us-gaap:FiniteLivedIntangibleAssetsNet NANA8.2NANANA7.363NANANA8.91NANANA10.503NANANA12.577NANANA15.366NANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:FiniteLivedIntangibleAssetsNet us-gaap:FiniteLivedIntangibleAssetsByMajorClass us-gaap:CoreDepositsNANA5.8NANANA7.363NANANA8.91NANANA10.503NANANA12.577NANANA15.366NANANA2.689NANANANANANANANANANANANANANANANANANA
 us-gaap:FiniteLivedIntangibleAssetsNet us-gaap:FiniteLivedIntangibleAssetsByMajorClass us-gaap:CustomerRelationshipsNANA2.4NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:IntangibleAssetsNetIncludingGoodwill █▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▁▁▁▁▁610.7298.0298.5298.987296.86297.234297.6298.0298.4298.8299.2299.5300.0300.4300.7301.2301.6302.1302.9303.6304.3304.0305.4305.8300.025.625.926.226.526.8NANANANANANANANANANANANANANANA
us-gaap:DeferredTaxAssetsLiabilitiesNet NANA31.3NANA27.51818.0253.6729.31922.30931.9943.48339.09727.3745.7883.77287.65888.08395.19472.7265.27573.97986.35278.5582.07559.07962.68667.50168.28778.32279.37479.5782.62754.0651.75736.60548.15955.29661.72462.49371.312NA79.86NANA
us-gaap:OperatingLeaseRightOfUseAsset █▇▆▆▆▆▆▆▆▆▁94.977.072.571.39370.33272.33872.55874.54871.08772.8410.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:EquitySecuritiesFvNi ██▆▅▃▂▃▂▁▁▁▆193.8192.9167.3160.561138.409131.158138.701126.502114.689118.005115.061172.294NANA0.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
us-gaap:TimeDepositMaturitiesYearOne NANA1515.8NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
us-gaap:LongTermDebt 557.8NANANANANANANANANANANANANANANANANANANANANANANANANANANANANA64.217348.32349.677275.075.0NANANANANANANANANANA
us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearTwo NANA11.3NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearThree NANA12.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFour NANA11.1NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFive NANA10.6NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive NANA32.3NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
us-gaap:StockholdersEquity █▇▇▆▆▆▆▆▆▅▅▅▅▄▄▄▄▄▄▄▃▃▃▃▃▂▂▂▂▂▁▁▁▁▁▁▁▁▁▁▁4034.53712.73413.53224.0463102.4142999.6333016.7482923.0632851.2642720.622613.72488.42391.72293.7632229.6982145.6272058.71969.01891.51857.41796.211660.1631591.5021583.6981514.7441051.331000.9281003.122957.664894.805855.251826.288799.525781.295759.616698.011672.12654.045636.683632.255615.653NA602.174NANA
us-gaap:CommonStockValue ██▇▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁1687.61608.21390.90.010.010.010.010.010.010.010.010.010.010.010.010.010.010.010.010.010.010.010.010.010.010.0090.0090.0090.0090.0090.0090.0090.0090.0090.0090.0080.0080.0080.0080.0080.008NA0.008NANA
us-gaap:AdditionalPaidInCapital NANANA1383.5371376.8591370.5441374.1411368.1911372.0371390.5691417.7241444.5551438.8571431.461424.541418.8351413.0611406.9431400.141394.5261389.9141328.6781306.5941273.6481268.947831.931828.327807.257803.376795.306797.146792.14789.462786.941784.852751.125748.159746.143743.78743.025741.531NA739.561NANA
us-gaap:CommonStocksIncludingAdditionalPaidInCapital NANA1390.9NANANA1374.1NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:RetainedEarningsAccumulatedDeficit █▇▇▇▆▆▆▆▆▅▅▅▄▄▄▄▃▃▃▃▃▃▂▂▂▂▂▂▂▂▂▁▁▁▁▁▁▁▁▁▁2366.62168.62001.41833.0121722.4511661.7681680.3171581.9281513.971399.2151282.7051166.2261055.103950.424848.466758.622675.764595.793522.436452.636385.584323.97262.638218.897159.939125.46785.45345.3734.807-30.379-61.358-92.357-120.196-153.86-174.471-206.232-221.338-233.974-243.512-248.833-252.424NA-258.8NANA
us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax ▇▅█▇▇▆▅▆▅▄▃▁▂▂▄▄▄▄▄▆▆▅▅▅▅▅▅▄▄▄▃▃▄▄▄▅▄▄▄▄▄64.519.992.378.58573.67737.49725.00835.59926.381-8.191-33.622-70.363-51.315-41.662-3.1458.1646.492.851-4.69536.39246.62633.33322.2620.64315.34823.42316.6399.4838.472-11.131-21.546-14.504-10.757.2058.22612.114.2910.868-4.593-2.945-5.795NA-9.422NANA
us-gaap:TreasuryStockValue ██▇▇▇▇▇▇▇▇▆▆▆▆▅▅▅▅▄▄▄▁▂84.284.071.171.09870.58370.18662.72862.66561.13460.98353.08352.03550.97146.46940.17340.00436.65136.60526.36226.2125.924-25.828-16.879NANANANANANANANANANANANANANANANANANANANANANA
us-gaap:StockIssuedDuringPeriodValueNewIssues █▁69.8-209.2NANANANANANANANANANANANANANANANA0.00.0NANA-402.7430.0NANA11.187-0.052NANANANANANANANANANA0.0NANANANANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
us-gaap:NetCashProvidedByUsedInOperatingActivities ▁███████████████████▇███▇█▇▇▇▇▇▇▇▇▇▇▇▇▇▇▇▇█▇-2061.3100.1220.084166.714159.423123.979183.267204.225178.966151.314144.692148.927159.03788.316112.72895.64587.46687.97266.16399.34543.82271.31575.17160.68815.83361.1256.16646.60220.54439.97741.24337.28950.59235.92522.8165.4147.30636.42833.36227.4342.539.18381.824-20.724NA
us-gaap:NetCashProvidedByUsedInInvestingActivities ▅▁▄▅▅▄▆▅▆▇▆▆▇▇▆▆▆▇▇▆▅▇▇▆█▇▇▇▇▇▇▇▇▇▇▇▇▇▇▇█▇▇▇-1325.0-4058.9-1945.562-1533.703-1662.392-2395.843-947.859-1330.995-1092.694-351.485-1071.276-703.118-591.741-347.298-803.904-915.949-800.215-435.459-321.964-686.938-1725.815-155.516-389.258-881.679251.514-347.02-395.76-388.493-312.85-288.91-645.814-163.26-181.219-183.049-139.924-83.143-231.72-81.727-468.803-293.82454.37-104.171-511.856-140.76NA
us-gaap:NetCashProvidedByUsedInFinancingActivities ▃█▄▂▄▃▁▂▂▂▂▂▂▁▂▂▂▂▁▁▂▂▁▁▁▂▁▁▁▁▁▁▁▂▁▁▁▁▁▁▁▁▁▁1435.66633.62978.4391267.2612605.7222252.978327.129931.1221195.824487.21724.592747.937500.151281.585457.59863.983672.39710.03184.209247.4331347.259890.538213.317388.065-1.413613.906245.22221.379205.663409.344401.052252.053-42.697498.77413.816206.73183.58170.057284.46837.80274.352211.5830.823216.816NA
us-gaap:CashAndCashEquivalentsPeriodIncreaseDecrease ▁█▆▄▆▄▃▄▄▄▄▄▄▄▄▄▄▅▄▃▃▅▄▃▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▃▄-1950.72674.81252.961-99.7281102.753-18.886-437.463-195.648282.096287.039-201.992193.74667.44722.603-233.58643.679-40.359362.543-71.592-340.16-334.734806.337-100.77-432.926265.934328.006-94.374-120.512-86.643160.411-203.519126.082-173.324351.65-103.292128.997-0.83324.758-150.973-228.592171.222146.592-399.20955.332NA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
us-gaap:IncreaseDecreaseInOtherOperatingCapitalNet ▁█▂▄▄▆▂▃▂▄▄-60.189.9-30.0862.521-3.63741.602-37.705-26.402-43.422-3.8170.056NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:NetCashProvidedByUsedInOperatingActivities ▁███████████████████▇███▇█▇▇▇▇▇▇▇▇▇▇▇▇▇▇▇▇█▇-2061.3100.1220.084166.714159.423123.979183.267204.225178.966151.314144.692148.927159.03788.316112.72895.64587.46687.97266.16399.34543.82271.31575.17160.68815.83361.1256.16646.60220.54439.97741.24337.28950.59235.92522.8165.4147.30636.42833.36227.4342.539.18381.824-20.724NA
us-gaap:NetIncomeLoss █▇▇▅▄▄▅▅▅▅▅▅▄▄▄▄▄▄▃▃▃▃▃▃▂▃▃▃▂▂▂▂▂▂▂▂▂▂▂▂▂▁▁▁▁223.8192.5193.6135.76993.27283.964128.065127.375122.936120.796119.086111.123104.679100.989.34682.85879.97173.35769.867.05261.61461.33258.52659.13434.71940.1940.40940.91935.53831.08531.35128.19234.01620.96432.11515.45813.96111.37.10113.0116.2295.153-10.8162.0091.227
us-gaap:ShareBasedCompensation █▇▆▆▇▆▆▅▆▆▆▅▆▆▅▅▅▆▅▄▅▅▄▅▄▄▄▃▄▁▃▂▂▁▂▁▂▂▂▂▁▂▂▂9.58.07.146.6058.0616.8946.4556.067.2516.4726.235.6987.0786.7055.6455.5156.0526.3425.2994.7224.9235.3944.6425.383.7794.1294.8133.1544.1660.3323.3351.5731.820.9711.5930.8982.0161.8111.171.4440.6531.0051.7131.929NA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
us-gaap:NetCashProvidedByUsedInInvestingActivities ▅▁▄▅▅▄▆▅▆▇▆▆▇▇▆▆▆▇▇▆▅▇▇▆█▇▇▇▇▇▇▇▇▇▇▇▇▇▇▇█▇▇▇-1325.0-4058.9-1945.562-1533.703-1662.392-2395.843-947.859-1330.995-1092.694-351.485-1071.276-703.118-591.741-347.298-803.904-915.949-800.215-435.459-321.964-686.938-1725.815-155.516-389.258-881.679251.514-347.02-395.76-388.493-312.85-288.91-645.814-163.26-181.219-183.049-139.924-83.143-231.72-81.727-468.803-293.82454.37-104.171-511.856-140.76NA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
us-gaap:NetCashProvidedByUsedInFinancingActivities ▃█▄▂▄▃▁▂▂▂▂▂▂▁▂▂▂▂▁▁▂▂▁▁▁▂▁▁▁▁▁▁▁▂▁▁▁▁▁▁▁▁▁▁1435.66633.62978.4391267.2612605.7222252.978327.129931.1221195.824487.21724.592747.937500.151281.585457.59863.983672.39710.03184.209247.4331347.259890.538213.317388.065-1.413613.906245.22221.379205.663409.344401.052252.053-42.697498.77413.816206.73183.58170.057284.46837.80274.352211.5830.823216.816NA
us-gaap:PaymentsOfDividendsCommonStock ████████▁▁25.825.325.27225.20825.21425.60625.64525.6840.00.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:PaymentsForRepurchaseOfCommonStock NANA-0.0690.09.14862.5214.5643.65833.96437.94935.6880.00.00.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
 us-gaap:DebtInstrumentInterestRateStatedPercentage us-gaap:DebtInstrument,us-gaap:LongtermDebtType wal:SubordinatedDebenturesMaturingJuly2025,us-gaap:SubordinatedDebtNANA5e-065e-065.0000000000000004e-085.0000000000000004e-085.0000000000000004e-085.0000000000000004e-085.0000000000000004e-080.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:DebtInstrumentInterestRateStatedPercentage us-gaap:DebtInstrument,us-gaap:LongtermDebtType wal:SubordinatedDebenturesMaturingJune2030Member,us-gaap:SubordinatedDebtNA5.25e-06NA5.25e-065.25e-08NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA

Common Stock Value

us-gaap:CommonStockValue

us-gaap:CommonStockValue


Common
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-31
Value1687160813900.010.010.010.010.010.010.010.010.010.010.010.010.010.010.010.010.010.010.010.010.010.010.0090.0090.0090.0090.0090.0090.0090.0090.0090.0090.0080.0080.0080.0080.0080.0080.008
Percentage of CommonStockValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets3.43.73.80.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Shares Issued

us-gaap:SharesIssued us-gaap:StatementEquityComponents

us-gaap:SharesIssued

us-gaap:CommonStock


Shares
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-312009-12-312008-12-31
Value10410310010010010110210210310410410510510510510510510510510510510310310210289888787878787868786838383828282817238
Percentage of SharesIssued100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Weighted Average Number Of Diluted Shares Outstanding

us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding

us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding


Weighted
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-09-302012-06-302012-03-312011-09-302011-06-302011-03-312010-09-302010-06-30
Value1031011009910110210310410510510510410510410410310210188888787878686858281828181817572
Percentage of WeightedAverageNumberOfDilutedSharesOutstanding100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Weighted Average Number Of Shares Outstanding Basic

us-gaap:WeightedAverageNumberOfSharesOutstandingBasic

us-gaap:WeightedAverageNumberOfSharesOutstandingBasic


Weighted
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-09-302012-06-302012-03-312011-09-302011-06-302011-03-312010-09-302010-06-30
Value102100999910110210310410410410410410410310310210110088878686868585858181818080807572
Percentage of WeightedAverageNumberOfSharesOutstandingBasic100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Earnings Per Share Basic

us-gaap:EarningsPerShareBasic

us-gaap:EarningsPerShareBasic


Earnings
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-31
Value2.181.911.941.360.930.831.261.251.191.161.141.061.00.970.860.80.770.710.670.650.60.60.580.590.390.460.460.470.410.350.360.320.390.240.380.180.150.120.070.040.050.03
Percentage of EarningsPerShareBasic100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Earnings Per Share Diluted

us-gaap:EarningsPerShareDiluted

us-gaap:EarningsPerShareDiluted


Earnings
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-31
Value2.171.91.931.360.930.831.251.241.191.161.131.050.990.960.850.790.760.70.670.640.60.60.570.580.390.450.460.460.40.350.360.320.390.240.370.180.150.120.070.040.050.03
Percentage of EarningsPerShareDiluted100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Tier One Risk Based Capital To Risk Weighted Assets

us-gaap:TierOneRiskBasedCapitalToRiskWeightedAssets dei:LegalEntity

us-gaap:TierOneRiskBasedCapitalToRiskWeightedAssets

wal:WesternAllianceBank


Tier
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312015-09-302015-06-302015-03-312014-12-312013-12-312012-12-31
Value9.90.1060.1050.1070.1080.0930.090.0930.0950.10.1050.092
Percentage of TierOneRiskBasedCapitalToRiskWeightedAssets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:TierOneRiskBasedCapitalToRiskWeightedAssets us-gaap:ConsolidatedEntities

srt:ParentCompany


Tier
Period End2020-12-312019-12-312018-12-312017-12-31
Value10.20.1090.1110.108
Percentage of TierOneRiskBasedCapitalToRiskWeightedAssets103.0102.8105.7100.9

Capital To Risk Weighted Assets

us-gaap:CapitalToRiskWeightedAssets dei:LegalEntity

us-gaap:CapitalToRiskWeightedAssets

wal:WesternAllianceBank


Capital
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312015-09-302015-06-302015-03-312014-12-312013-12-312012-12-31
Value11.60.1190.1190.1230.1260.1140.1110.1140.1060.1120.1170.109
Percentage of CapitalToRiskWeightedAssets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:CapitalToRiskWeightedAssets us-gaap:ConsolidatedEntities

srt:ParentCompany


Capital
Period End2020-12-312019-12-312018-12-312017-12-31
Value12.50.1280.1320.133
Percentage of CapitalToRiskWeightedAssets107.8107.6110.9108.1

Allocated Share Based Compensation Expense

us-gaap:AllocatedShareBasedCompensationExpense us-gaap:AwardType

us-gaap:AllocatedShareBasedCompensationExpense

us-gaap:PerformanceShares


Allocated
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-31
Value2.52.11.81.81.81.72.41.61.31.71.61.51.61.62.01.91.41.32.21.21.21.21.21.61.01.01.40.70.70.7
Percentage of AllocatedShareBasedCompensationExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of InterestAndDividendIncomeOperating0.60.60.50.60.60.60.80.50.40.60.60.60.60.70.90.90.70.71.20.60.70.80.81.10.90.91.30.70.70.7
Percentage of InterestAndDividendIncomeOperating us-gaap:PerformanceShares0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:RestrictedStock


Allocated
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-09-302012-06-302012-03-312011-09-302011-06-30
Value6.65.65.04.55.94.93.74.05.44.34.23.44.74.33.02.74.14.50.52.73.73.82.31.82.62.5-0.93.24.20.31.30.51.01.12.30.90.80.8
Percentage of AllocatedShareBasedCompensationExpense264.0266.7277.8250.0327.8288.2154.2250.0415.4252.9262.5226.7293.8268.8150.0142.1292.9346.222.7225.0308.3316.7191.7112.5260.0250.0-64.3457.1600.042.90.00.00.00.00.00.00.00.0
Percentage of InterestAndDividendIncomeOperating1.71.71.51.51.91.61.21.31.81.51.51.31.91.81.31.22.02.30.31.52.12.51.51.22.22.3-0.83.04.10.31.40.61.21.43.01.21.11.1
Percentage of InterestAndDividendIncomeOperating us-gaap:RestrictedStock0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:AllocatedShareBasedCompensationExpense us-gaap:TitleOfIndividual, us-gaap:AwardType

srt:ExecutiveOfficer, us-gaap:RestrictedStock


Allocated
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value0.30.30.30.30.30.30.40.50.50.50.60.6
Percentage of AllocatedShareBasedCompensationExpense12.014.316.716.716.717.616.731.238.529.437.540.0
Percentage of InterestAndDividendIncomeOperating0.10.10.10.10.10.10.10.20.20.20.20.2
Percentage of InterestAndDividendIncomeOperating srt:ExecutiveOfficer us-gaap:RestrictedStock0.00.00.00.00.00.00.00.00.00.00.00.0

Comprehensive Income Net Of Tax

us-gaap:ComprehensiveIncomeNetOfTax

us-gaap:ComprehensiveIncomeNetOfTax


Comprehensive
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
Value268120207140129961171361571461559295637784838028567472456426464741554124241619282317165.4531515-0.166-17.64-3.847-0.198
Percentage of ComprehensiveIncomeNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of InterestAndDividendIncomeOperating67.435.962.546.140.731.437.243.352.050.255.334.737.827.034.138.840.442.115.330.843.046.930.144.122.842.343.239.754.142.024.926.418.024.033.529.622.321.67.121.420.6-0.2-24.4-5.4-0.3

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

us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments

us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments


Income
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
Value2762342401661121021541551471461391181301211241171119796968780777845545453464234374127412219159.608219.9849.741-14.7392.5611.839
Percentage of IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of InterestAndDividendIncomeOperating69.370.272.654.635.533.448.949.448.850.349.644.751.751.954.454.154.150.951.352.150.552.451.553.638.948.949.551.045.842.935.240.545.933.449.128.525.020.612.528.313.613.5-20.43.62.6

us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments us-gaap:ConsolidationItems

us-gaap:CorporateNonSegment


Income
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-31
Value-46.5-58.0-72.87-58.597-44.777-34.456-28.134-19.192-9.298-1.44-2.423-20.048-4.672-10.83-10.303-13.934-15.37-12.044-20.742-22.464-20.869-11.676-9.781-10.046-22.289-5.947-4.902-5.098-9.061-2.447
Percentage of IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments-16.8-24.7-30.3-35.2-39.7-33.6-18.2-12.3-6.3-1.0-1.7-16.9-3.6-8.9-8.3-11.8-13.7-12.3-21.6-23.3-23.7-14.4-12.6-12.8-49.2-11.0-9.0-9.5-19.4-5.8
Percentage of InterestAndDividendIncomeOperating-11.7-17.4-22.0-19.2-14.1-11.2-8.9-6.1-3.1-0.5-0.9-7.6-1.9-4.6-4.5-6.4-7.4-6.3-11.1-12.2-12.0-7.6-6.5-6.9-19.1-5.4-4.5-4.8-8.9-2.5
Percentage of InterestAndDividendIncomeOperating us-gaap:CorporateNonSegment0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

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

us-gaap:OperatingSegments, wal:CommercialSegment


Income
Period End2021-06-302021-03-312020-06-302020-03-31
Value20922095109
Percentage of IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments75.794.284.4107.0
Percentage of InterestAndDividendIncomeOperating52.566.129.935.7
Percentage of InterestAndDividendIncomeOperating us-gaap:OperatingSegments wal:CommercialSegment0.00.00.00.0

us-gaap:OperatingSegments, wal:ConsumerRelatedSegment


Income
Period End2021-06-302021-03-312020-06-302020-03-31
Value113716227
Percentage of IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments41.130.555.026.6
Percentage of InterestAndDividendIncomeOperating28.521.419.58.9
Percentage of InterestAndDividendIncomeOperating us-gaap:OperatingSegments wal:ConsumerRelatedSegment0.00.00.00.0

us-gaap:OperatingSegments, wal:HFFLoanPortfolio


Income
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-30
Value7.74-8.3965.213118.692109.7471010111010128.5461010109.511
Percentage of IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments4.6-7.45.17.15.67.16.77.38.78.68.88.810.57.610.810.810.610.8
Percentage of InterestAndDividendIncomeOperating2.5-2.61.73.52.83.53.33.63.94.44.64.85.74.15.55.55.55.5
Percentage of InterestAndDividendIncomeOperating us-gaap:OperatingSegments wal:HFFLoanPortfolio0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:OperatingSegments, wal:HOAServices


Income
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-31
Value121611121212129.5949.7888.0577.6597.0866.8316.4985.6155.1145.3034.1893.1181.8881.9692.3451.401
Percentage of IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments7.514.311.38.37.88.48.46.98.36.26.35.75.85.85.75.35.54.83.92.42.55.22.6
Percentage of InterestAndDividendIncomeOperating4.15.13.84.13.94.14.23.43.73.23.33.13.13.12.92.72.92.42.01.21.32.01.3
Percentage of InterestAndDividendIncomeOperating us-gaap:OperatingSegments wal:HOAServices0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:OperatingSegments, wal:OtherNationalBusinessLines


Income
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-31
Value3944162522171410101112147.618.9486.616107.4447.4617.5977.454109.1289.042
Percentage of IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments23.939.516.516.214.212.09.67.28.89.09.911.46.58.06.810.77.78.59.49.613.420.116.6
Percentage of InterestAndDividendIncomeOperating13.114.05.57.97.05.84.83.63.94.75.26.23.54.33.45.54.04.34.94.97.27.88.1
Percentage of InterestAndDividendIncomeOperating us-gaap:OperatingSegments wal:OtherNationalBusinessLines0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:OperatingSegments, wal:PublicandNonProfitFinance


Income
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-31
Value0.295-0.7311.1190.9371.741.4341.5572.5052.2611.7411.7794.9915.3225.3193.7383.3433.3722.9293.5623.7813.1842.4832.897
Percentage of IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments0.2-0.61.10.61.11.01.11.81.91.31.54.04.54.83.83.53.53.34.44.94.15.55.3
Percentage of InterestAndDividendIncomeOperating0.1-0.20.40.30.60.50.50.90.90.70.82.22.42.61.91.81.81.72.32.52.22.12.6
Percentage of InterestAndDividendIncomeOperating us-gaap:OperatingSegments wal:PublicandNonProfitFinance0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:OperatingSegments, wal:TechnologyandInnovation


Income
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-31
Value4823132726182123181614131313101111101212100.00.0
Percentage of IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments29.220.612.817.816.912.214.916.615.812.311.810.911.511.911.211.812.212.415.115.413.40.00.0
Percentage of InterestAndDividendIncomeOperating16.07.34.38.78.46.07.58.27.06.46.15.96.26.45.76.16.46.37.97.97.20.00.0
Percentage of InterestAndDividendIncomeOperating us-gaap:OperatingSegments wal:TechnologyandInnovation0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments us-gaap:ConsolidationItems, us-gaap:StatementGeographical

srt:ReportableGeographicalComponents, stpr:AZ


Income
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value57343641433734323537333235
Percentage of IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments34.730.935.826.927.825.223.523.430.328.727.125.930.0
Percentage of InterestAndDividendIncomeOperating19.011.011.913.213.712.311.811.613.614.814.114.116.2
Percentage of InterestAndDividendIncomeOperating srt:ReportableGeographicalComponents stpr:AZ0.00.00.00.00.00.00.00.00.00.00.00.00.0

srt:ReportableGeographicalComponents, stpr:NV


Income
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value24252729282825252422272325
Percentage of IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments14.822.526.518.918.019.217.318.120.317.122.718.822.0
Percentage of InterestAndDividendIncomeOperating8.18.08.89.28.99.48.79.09.18.911.810.211.9
Percentage of InterestAndDividendIncomeOperating srt:ReportableGeographicalComponents stpr:NV0.00.00.00.00.00.00.00.00.00.00.00.00.0

srt:ReportableGeographicalComponents, wal:NorthernCalifornia


Income
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value1514101412131212121110139.267
Percentage of IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments9.612.710.19.18.29.38.59.310.59.28.810.77.9
Percentage of InterestAndDividendIncomeOperating5.24.53.44.44.14.54.34.64.74.84.65.84.3
Percentage of InterestAndDividendIncomeOperating srt:ReportableGeographicalComponents wal:NorthernCalifornia0.00.00.00.00.00.00.00.00.00.00.00.00.0

srt:ReportableGeographicalComponents, wal:SouthernCalifornia


Income
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value178.1421420191716151414141515
Percentage of IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments10.67.214.513.212.611.811.011.312.411.111.912.113.2
Percentage of InterestAndDividendIncomeOperating5.82.64.96.56.25.85.65.65.55.76.16.67.1
Percentage of InterestAndDividendIncomeOperating srt:ReportableGeographicalComponents wal:SouthernCalifornia0.00.00.00.00.00.00.00.00.00.00.00.00.0

Income Tax Expense Benefit

us-gaap:IncomeTaxExpenseBenefit

us-gaap:IncomeTaxExpenseBenefit


Income
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
Value52414730191826282425207.4922520343431242629261919191014141210102.3419.2886.8176.8087.5096.7525.2594.4412.0117.5143.2954.029-4.58-0.079-0.19
Percentage of IncomeTaxExpenseBenefit100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of InterestAndDividendIncomeOperating13.112.514.210.16.26.08.39.08.28.87.42.810.18.915.316.015.412.714.115.815.112.712.813.19.112.712.812.310.510.82.410.07.68.28.98.66.85.72.610.14.55.6-6.3-0.1-0.3

us-gaap:IncomeTaxExpenseBenefit us-gaap:ConsolidationItems

us-gaap:CorporateNonSegment


Income
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-31
Value-25.5-28.3-28.799-23.313-17.976-13.913-17.69-13.671-13.093-10.063-13.431-25.997-7.271-11.376-16.209-14.598-16.836-17.733-18.631-16.487-15.524-16.135-14.354-14.907-15.247-8.989-8.603-9.499-10.716-6.455
Percentage of IncomeTaxExpenseBenefit-48.7-67.5-61.3-75.6-91.7-75.2-67.4-47.9-52.9-39.4-64.2-347.0-28.7-54.7-46.3-41.8-52.7-72.4-70.7-56.5-59.0-82.7-74.2-77.7-143.9-63.7-61.0-73.4-100.1-60.8
Percentage of InterestAndDividendIncomeOperating-6.4-8.5-8.7-7.6-5.6-4.5-5.6-4.3-4.3-3.5-4.8-9.8-2.9-4.8-7.1-6.7-8.1-9.2-9.9-8.9-8.9-10.5-9.5-10.2-13.1-8.1-7.8-9.0-10.5-6.5
Percentage of InterestAndDividendIncomeOperating us-gaap:CorporateNonSegment0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

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

us-gaap:OperatingSegments, wal:CommercialSegment


Income
Period End2021-06-302021-03-312020-06-302020-03-31
Value50522226
Percentage of IncomeTaxExpenseBenefit96.2125.8116.8140.5
Percentage of InterestAndDividendIncomeOperating12.615.87.28.5
Percentage of InterestAndDividendIncomeOperating us-gaap:OperatingSegments wal:CommercialSegment0.00.00.00.0

us-gaap:OperatingSegments, wal:ConsumerRelatedSegment


Income
Period End2021-06-302021-03-312020-06-302020-03-31
Value2717146.4
Percentage of IncomeTaxExpenseBenefit52.541.875.034.6
Percentage of InterestAndDividendIncomeOperating6.95.24.62.1
Percentage of InterestAndDividendIncomeOperating us-gaap:OperatingSegments wal:ConsumerRelatedSegment0.00.00.00.0

us-gaap:OperatingSegments, wal:HFFLoanPortfolio


Income
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-30
Value1.78-1.9311.0442.531.9992.4142.2422.3612.3742.5592.4744.0844.6223.2053.9723.8873.8113.567
Percentage of IncomeTaxExpenseBenefit5.8-9.95.69.67.09.88.811.331.710.111.911.713.210.016.214.713.113.5
Percentage of InterestAndDividendIncomeOperating0.6-0.60.30.80.60.80.80.80.91.01.11.82.11.52.12.12.12.0
Percentage of InterestAndDividendIncomeOperating us-gaap:OperatingSegments wal:HFFLoanPortfolio0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:OperatingSegments, wal:HOAServices


Income
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-31
Value2.8893.7172.7552.9532.8132.8642.832.2062.2511.8531.7612.5722.5622.4362.1061.9181.9891.5711.1690.7080.7380.880.525
Percentage of IncomeTaxExpenseBenefit9.419.014.911.39.911.611.110.630.07.38.57.47.37.68.67.36.86.06.03.73.88.33.7
Percentage of InterestAndDividendIncomeOperating0.91.20.90.90.90.91.00.80.80.70.81.11.21.21.11.01.10.90.80.50.50.80.5
Percentage of InterestAndDividendIncomeOperating us-gaap:OperatingSegments wal:HOAServices0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:OperatingSegments, wal:OtherNationalBusinessLines


Income
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-31
Value9.172103.6695.7635.0864.0693.2282.3112.3882.7042.785.312.8533.3562.4813.8642.7912.7982.8492.7953.9313.4233.391
Percentage of IncomeTaxExpenseBenefit29.852.319.822.017.816.412.611.131.910.713.415.28.210.510.114.79.610.614.614.420.532.324.0
Percentage of InterestAndDividendIncomeOperating3.03.21.21.81.61.31.10.80.91.11.22.31.31.61.32.11.51.61.81.82.72.93.1
Percentage of InterestAndDividendIncomeOperating us-gaap:OperatingSegments wal:OtherNationalBusinessLines0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:OperatingSegments, wal:PublicandNonProfitFinance


Income
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-31
Value0.068-0.1680.480.2160.40.330.3580.5760.5210.4010.4091.8931.0281.9941.4021.2531.2651.0981.3361.4181.1940.9321.086
Percentage of IncomeTaxExpenseBenefit0.2-0.92.60.81.41.31.42.87.01.62.05.42.96.25.74.84.34.26.87.36.28.87.7
Percentage of InterestAndDividendIncomeOperating0.0-0.10.20.10.10.10.10.20.20.20.20.80.51.00.70.70.70.60.90.90.80.81.0
Percentage of InterestAndDividendIncomeOperating us-gaap:OperatingSegments wal:PublicandNonProfitFinance0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:OperatingSegments, wal:TechnologyandInnovation


Income
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-31
Value115.3542.9166.3336.074.1465.0125.3414.2983.6883.3095.085.0754.9894.1114.2614.44.0974.5774.5073.9410.00.0
Percentage of IncomeTaxExpenseBenefit36.327.315.824.121.316.819.625.557.414.615.914.514.515.616.816.215.115.623.423.320.50.00.0
Percentage of InterestAndDividendIncomeOperating3.71.70.92.01.91.41.71.91.61.51.42.22.32.42.12.32.42.43.03.02.70.00.0
Percentage of InterestAndDividendIncomeOperating us-gaap:OperatingSegments wal:TechnologyandInnovation0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:IncomeTaxExpenseBenefit us-gaap:ConsolidationItems, us-gaap:StatementGeographical

srt:ReportableGeographicalComponents, stpr:AZ


Income
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value148.7289.03210109.3228.5848.188.9999.3248.3211213
Percentage of IncomeTaxExpenseBenefit46.944.548.839.637.937.733.639.1120.136.840.035.739.7
Percentage of InterestAndDividendIncomeOperating4.72.72.93.33.43.12.92.93.43.73.55.56.4
Percentage of InterestAndDividendIncomeOperating srt:ReportableGeographicalComponents stpr:AZ0.00.00.00.00.00.00.00.00.00.00.00.00.0

srt:ReportableGeographicalComponents, stpr:NV


Income
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value5.185.3355.6496.1215.8995.9655.3255.3175.0554.6765.9038.0679.086
Percentage of IncomeTaxExpenseBenefit16.827.230.523.320.724.120.925.467.518.528.423.126.0
Percentage of InterestAndDividendIncomeOperating1.71.71.81.91.92.01.81.91.91.92.53.54.2
Percentage of InterestAndDividendIncomeOperating srt:ReportableGeographicalComponents stpr:NV0.00.00.00.00.00.00.00.00.00.00.00.00.0

srt:ReportableGeographicalComponents, wal:NorthernCalifornia


Income
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value4.4784.0182.8453.9233.5913.8533.4953.6273.4863.3553.0985.3553.897
Percentage of IncomeTaxExpenseBenefit14.520.515.415.012.615.613.717.346.513.214.915.311.2
Percentage of InterestAndDividendIncomeOperating1.51.30.91.21.11.31.21.31.31.31.32.31.8
Percentage of InterestAndDividendIncomeOperating srt:ReportableGeographicalComponents wal:NorthernCalifornia0.00.00.00.00.00.00.00.00.00.00.00.00.0

srt:ReportableGeographicalComponents, wal:SouthernCalifornia


Income
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value4.932.284.0315.6965.524.884.5254.4214.1174.0364.1356.3356.517
Percentage of IncomeTaxExpenseBenefit16.011.621.821.719.319.717.721.155.015.919.918.118.7
Percentage of InterestAndDividendIncomeOperating1.60.71.31.81.71.61.61.61.61.61.82.83.0
Percentage of InterestAndDividendIncomeOperating srt:ReportableGeographicalComponents wal:SouthernCalifornia0.00.00.00.00.00.00.00.00.00.00.00.00.0

Income Taxes Paid Net

us-gaap:IncomeTaxesPaidNet

us-gaap:IncomeTaxesPaidNet


Income
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312013-09-302013-06-302013-03-312012-09-302012-06-302012-03-312011-09-302010-09-30
Value80307.13120151.3162.8250.7667.625-34.6194.102-0.1344.9119.8818.67101.450.00.251.040.00.0
Percentage of IncomeTaxesPaidNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.00.00.0
Percentage of InterestAndDividendIncomeOperating20.29.22.26.84.70.40.90.22.5-11.91.5-0.12.04.29.411.31.70.00.31.30.00.0

Interest And Fee Income Loans And Leases

us-gaap:InterestAndFeeIncomeLoansAndLeases

us-gaap:InterestAndFeeIncomeLoansAndLeases


Interest
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
Value35329830127628927628427827025824723422220520019118317216816716013913713310510099949086868381747569686767656463646464
Percentage of InterestAndFeeIncomeLoansAndLeases100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of InterestAndDividendIncomeOperating88.889.390.890.791.090.190.388.489.388.987.988.588.287.887.687.788.789.790.190.991.990.690.891.090.490.590.089.588.887.989.190.690.889.989.388.487.887.587.388.488.288.889.890.991.7

Interest Expense

us-gaap:InterestExpense

us-gaap:InterestExpense


Interest
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
Value2816162019384349484338312720171614121212108.5457.9888.8267.97.8548.0067.4818.0757.9247.6018.1217.1336.9056.8886.7237.0417.388.1479.5481010111112
Percentage of InterestExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of InterestAndDividendIncomeOperating7.05.05.16.66.212.413.815.615.915.113.611.810.98.77.67.56.96.76.56.66.05.55.36.06.87.17.37.17.98.07.88.88.08.38.28.59.09.510.612.914.115.115.815.917.9

Interest Income Expense Net

us-gaap:InterestIncomeExpenseNet

us-gaap:InterestIncomeExpenseNet


Interest
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
Value370317314284298269271266254247243234224214211201192179175172163145143137108103102989390898482767771707068646361605957
Percentage of InterestIncomeExpenseNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of InterestAndDividendIncomeOperating93.095.094.993.493.887.686.284.484.184.986.488.289.191.392.492.593.193.393.593.494.094.594.794.093.292.992.792.992.192.092.291.292.091.791.891.591.090.589.487.185.984.984.284.182.1

us-gaap:InterestIncomeExpenseNet us-gaap:ConsolidationItems

us-gaap:CorporateNonSegment


Interest
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-31
Value-49.7-54.3-49.671-41.503-28.945-15.179-10.861-5.1852.8167.4028.6473.2752.242-2.004-6.576-9.816-12.763-12.27-16.462-17.527-14.838-13.742-10.656-11.893-7.037-5.339-4.279-4.915-5.6-1.182
Percentage of InterestIncomeExpenseNet-13.4-17.1-15.8-14.6-9.7-5.6-4.0-1.91.13.03.61.41.0-0.9-3.1-4.9-6.6-6.8-9.4-10.2-9.1-9.4-7.4-8.7-6.5-5.2-4.2-5.0-6.0-1.3
Percentage of InterestAndDividendIncomeOperating-12.5-16.3-15.0-13.6-9.1-4.9-3.4-1.60.92.53.11.20.9-0.9-2.9-4.5-6.2-6.4-8.8-9.5-8.5-8.9-7.0-8.1-6.0-4.8-3.9-4.7-5.5-1.2
Percentage of InterestAndDividendIncomeOperating us-gaap:CorporateNonSegment0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

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

us-gaap:OperatingSegments, wal:CommercialSegment


Interest
Period End2021-06-302021-03-312020-06-302020-03-31
Value280263254228
Percentage of InterestIncomeExpenseNet75.883.185.484.9
Percentage of InterestAndDividendIncomeOperating70.478.980.174.4
Percentage of InterestAndDividendIncomeOperating us-gaap:OperatingSegments wal:CommercialSegment0.00.00.00.0

us-gaap:OperatingSegments, wal:ConsumerRelatedSegment


Interest
Period End2021-06-302021-03-312020-06-302020-03-31
Value1391077255
Percentage of InterestIncomeExpenseNet37.734.024.320.7
Percentage of InterestAndDividendIncomeOperating35.032.322.818.1
Percentage of InterestAndDividendIncomeOperating us-gaap:OperatingSegments wal:ConsumerRelatedSegment0.00.00.00.0

us-gaap:OperatingSegments, wal:HFFLoanPortfolio


Interest
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-30
Value121313131213121313131414151313131312
Percentage of InterestIncomeExpenseNet4.44.55.05.04.85.35.25.65.86.26.66.97.67.07.67.57.77.4
Percentage of InterestAndDividendIncomeOperating4.14.24.44.34.14.54.44.95.15.56.06.47.06.57.17.07.26.9
Percentage of InterestAndDividendIncomeOperating us-gaap:OperatingSegments wal:HFFLoanPortfolio0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:OperatingSegments, wal:HOAServices


Interest
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-31
Value22222222212120171716151313131211119.9098.6326.916.4586.4365.768
Percentage of InterestIncomeExpenseNet7.87.68.58.18.28.68.37.37.77.27.26.66.87.17.16.76.66.15.94.84.75.95.6
Percentage of InterestAndDividendIncomeOperating7.37.17.47.07.07.27.16.36.86.46.56.16.36.76.66.26.15.75.64.64.45.55.2
Percentage of InterestAndDividendIncomeOperating us-gaap:OperatingSegments wal:HOAServices0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:OperatingSegments, wal:OtherNationalBusinessLines


Interest
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-31
Value4644373732292521201918191615141412121011111312
Percentage of InterestIncomeExpenseNet16.414.813.913.712.411.610.48.78.78.88.89.38.47.97.98.47.07.77.37.88.212.012.6
Percentage of InterestAndDividendIncomeOperating15.313.912.211.810.49.88.87.57.77.88.08.57.87.47.47.86.57.26.97.47.711.211.7
Percentage of InterestAndDividendIncomeOperating us-gaap:OperatingSegments wal:OtherNationalBusinessLines0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:OperatingSegments, wal:PublicandNonProfitFinance


Interest
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-31
Value2.81.641.9113.0643.3943.4613.4233.9253.6833.7943.7467.2437.2697.4886.4855.6415.0125.0265.2215.4545.054.9034.581
Percentage of InterestIncomeExpenseNet1.00.50.71.11.31.41.41.61.61.71.73.43.63.93.63.22.93.13.63.83.74.54.4
Percentage of InterestAndDividendIncomeOperating0.90.50.61.01.11.11.21.41.41.51.63.23.33.63.43.02.72.93.43.63.54.24.1
Percentage of InterestAndDividendIncomeOperating us-gaap:OperatingSegments wal:PublicandNonProfitFinance0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:OperatingSegments, wal:TechnologyandInnovation


Interest
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-31
Value4847413833282930272422222021181818161615140.00.0
Percentage of InterestIncomeExpenseNet16.916.015.514.112.711.211.912.511.611.010.710.810.110.910.110.310.510.211.210.910.60.00.0
Percentage of InterestAndDividendIncomeOperating15.815.013.612.210.89.410.110.810.39.89.710.09.410.29.49.69.89.610.610.39.90.00.0
Percentage of InterestAndDividendIncomeOperating us-gaap:OperatingSegments wal:TechnologyandInnovation0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:InterestIncomeExpenseNet us-gaap:ConsolidationItems, us-gaap:StatementGeographical

srt:ReportableGeographicalComponents, stpr:AZ


Interest
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value83806565685955555657545252
Percentage of InterestIncomeExpenseNet29.327.124.324.025.823.422.322.824.225.925.525.026.1
Percentage of InterestAndDividendIncomeOperating27.425.421.320.721.819.719.019.721.423.023.223.124.2
Percentage of InterestAndDividendIncomeOperating srt:ReportableGeographicalComponents stpr:AZ0.00.00.00.00.00.00.00.00.00.00.00.00.0

srt:ReportableGeographicalComponents, stpr:NV


Interest
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value46494342403939383735363636
Percentage of InterestIncomeExpenseNet16.416.616.015.715.215.515.815.716.215.717.117.518.0
Percentage of InterestAndDividendIncomeOperating15.315.614.013.512.913.113.413.514.314.015.616.216.7
Percentage of InterestAndDividendIncomeOperating srt:ReportableGeographicalComponents stpr:NV0.00.00.00.00.00.00.00.00.00.00.00.00.0

srt:ReportableGeographicalComponents, wal:NorthernCalifornia


Interest
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value28312525232323232323222121
Percentage of InterestIncomeExpenseNet10.010.49.69.38.89.49.39.710.210.310.410.310.9
Percentage of InterestAndDividendIncomeOperating9.39.88.48.07.47.97.98.39.09.19.59.510.1
Percentage of InterestAndDividendIncomeOperating srt:ReportableGeographicalComponents wal:NorthernCalifornia0.00.00.00.00.00.00.00.00.00.00.00.00.0

srt:ReportableGeographicalComponents, wal:SouthernCalifornia


Interest
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value35363235333130302927272826
Percentage of InterestIncomeExpenseNet12.512.212.013.012.612.412.312.512.612.313.013.313.3
Percentage of InterestAndDividendIncomeOperating11.711.410.511.210.710.410.510.811.211.011.812.312.3
Percentage of InterestAndDividendIncomeOperating srt:ReportableGeographicalComponents wal:SouthernCalifornia0.00.00.00.00.00.00.00.00.00.00.00.00.0

Net Income Loss

us-gaap:NetIncomeLoss

us-gaap:NetIncomeLoss


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
Value22319219313593831281271221201191111041008982797369676161585934404040353131283420321513117.101136.2295.153-10.8162.0091.227
Percentage of NetIncomeLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of InterestAndDividendIncomeOperating56.257.658.444.529.327.340.640.440.641.542.241.941.643.039.138.038.638.237.236.335.439.838.740.429.836.236.738.834.931.532.130.438.125.238.119.617.914.69.217.68.57.2-14.92.81.8

us-gaap:NetIncomeLoss us-gaap:ConsolidationItems

us-gaap:CorporateNonSegment


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-31
Value-21.0-29.7-44.071-35.284-26.801-20.543-10.444-5.5213.7958.623115.9492.5990.5465.9060.6641.4665.689-2.111-5.977-5.3454.4594.5734.861-7.0423.0423.7014.4011.1513.354
Percentage of NetIncomeLoss-9.4-15.4-22.8-26.0-28.7-24.5-8.2-4.33.17.19.25.42.50.56.60.81.87.8-3.0-8.9-8.77.37.88.2-20.37.69.210.83.210.8
Percentage of InterestAndDividendIncomeOperating-5.3-8.9-13.3-11.6-8.4-6.7-3.3-1.71.33.03.92.21.00.22.60.30.73.0-1.1-3.2-3.12.93.03.3-6.02.73.44.21.13.4
Percentage of InterestAndDividendIncomeOperating us-gaap:CorporateNonSegment0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

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

us-gaap:OperatingSegments, wal:CommercialSegment


Net
Period End2021-06-302021-03-312020-06-302020-03-31
Value1581687283
Percentage of NetIncomeLoss70.987.477.699.6
Percentage of InterestAndDividendIncomeOperating39.850.322.827.2
Percentage of InterestAndDividendIncomeOperating us-gaap:OperatingSegments wal:CommercialSegment0.00.00.00.0

us-gaap:OperatingSegments, wal:ConsumerRelatedSegment


Net
Period End2021-06-302021-03-312020-06-302020-03-31
Value86544720
Percentage of NetIncomeLoss38.528.150.824.9
Percentage of InterestAndDividendIncomeOperating21.616.214.96.8
Percentage of InterestAndDividendIncomeOperating us-gaap:OperatingSegments wal:ConsumerRelatedSegment0.00.00.00.0

us-gaap:OperatingSegments, wal:HFFLoanPortfolio


Net
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-30
Value5.96-6.4654.1698.476.6938.0827.5057.9027.9468.5678.2826.8067.7035.3416.6216.4786.3525.944
Percentage of NetIncomeLoss4.4-6.95.06.65.36.66.26.67.28.28.27.69.36.79.09.39.59.6
Percentage of InterestAndDividendIncomeOperating2.0-2.01.42.72.12.72.62.83.03.43.53.03.52.63.43.53.43.4
Percentage of InterestAndDividendIncomeOperating us-gaap:OperatingSegments wal:HFFLoanPortfolio0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:OperatingSegments, wal:HOAServices


Net
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-31
Value9.671128.8489.8869.4169.5879.4747.3887.5376.2045.8984.5144.2694.0623.5093.1963.3142.6181.9491.181.2311.4650.876
Percentage of NetIncomeLoss7.113.310.57.77.47.87.86.26.85.95.85.15.25.14.84.64.94.23.22.02.14.22.2
Percentage of InterestAndDividendIncomeOperating3.23.92.93.13.03.23.32.62.82.52.52.02.02.01.81.71.81.51.30.80.81.30.8
Percentage of InterestAndDividendIncomeOperating us-gaap:OperatingSegments wal:HOAServices0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:OperatingSegments, wal:OtherNationalBusinessLines


Net
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-31
Value303413191713107.7417.9969.0539.3088.9174.7575.5924.1356.4384.6534.6634.7484.6596.5525.7055.651
Percentage of NetIncomeLoss22.636.815.715.113.411.18.96.57.28.69.210.05.77.05.69.26.97.67.78.011.116.414.1
Percentage of InterestAndDividendIncomeOperating10.110.84.36.15.44.53.72.73.03.64.03.92.22.72.23.42.52.73.13.14.54.95.1
Percentage of InterestAndDividendIncomeOperating us-gaap:OperatingSegments wal:OtherNationalBusinessLines0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:OperatingSegments, wal:PublicandNonProfitFinance


Net
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-31
Value0.227-0.5630.6390.7211.341.1041.1991.9291.741.341.373.0984.2943.3252.3362.092.1071.8312.2262.3631.991.5511.811
Percentage of NetIncomeLoss0.2-0.60.80.61.10.91.01.61.61.31.43.55.24.23.23.03.13.03.64.03.44.54.5
Percentage of InterestAndDividendIncomeOperating0.1-0.20.20.20.40.40.40.70.70.50.61.42.01.61.21.11.11.11.41.61.41.31.6
Percentage of InterestAndDividendIncomeOperating us-gaap:OperatingSegments wal:PublicandNonProfitFinance0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:OperatingSegments, wal:TechnologyandInnovation


Net
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-31
Value37171021201316171412118.478.4548.3166.8537.17.3346.8297.6287.5146.5670.00.0
Percentage of NetIncomeLoss27.619.212.116.616.011.313.915.012.911.811.09.510.210.49.310.210.911.112.412.811.10.00.0
Percentage of InterestAndDividendIncomeOperating12.35.63.36.76.44.65.86.35.44.94.73.73.94.03.63.84.03.94.95.04.50.00.0
Percentage of InterestAndDividendIncomeOperating us-gaap:OperatingSegments wal:TechnologyandInnovation0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:NetIncomeLoss us-gaap:ConsolidationItems, us-gaap:StatementGeographical

srt:ReportableGeographicalComponents, stpr:AZ


Net
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value43262731322725242627241921
Percentage of NetIncomeLoss31.928.132.924.325.522.821.320.624.326.724.522.125.9
Percentage of InterestAndDividendIncomeOperating14.28.29.09.910.39.28.88.710.211.110.58.69.9
Percentage of InterestAndDividendIncomeOperating srt:ReportableGeographicalComponents stpr:AZ0.00.00.00.00.00.00.00.00.00.00.00.00.0

srt:ReportableGeographicalComponents, stpr:NV


Net
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value19202123222220201917211516
Percentage of NetIncomeLoss14.421.525.618.017.418.316.616.817.116.821.617.120.4
Percentage of InterestAndDividendIncomeOperating6.46.37.07.37.07.46.97.17.27.09.36.77.7
Percentage of InterestAndDividendIncomeOperating srt:ReportableGeographicalComponents stpr:NV0.00.00.00.00.00.00.00.00.00.00.00.00.0

srt:ReportableGeographicalComponents, wal:NorthernCalifornia


Net
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value11107.469109.2339.9088.9879.3258.9628.6257.6537.9445.37
Percentage of NetIncomeLoss8.511.18.97.97.28.17.47.88.18.27.68.96.5
Percentage of InterestAndDividendIncomeOperating3.83.22.43.22.93.33.13.33.43.43.33.52.5
Percentage of InterestAndDividendIncomeOperating srt:ReportableGeographicalComponents wal:NorthernCalifornia0.00.00.00.00.00.00.00.00.00.00.00.00.0

srt:ReportableGeographicalComponents, wal:SouthernCalifornia


Net
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value125.8621014141211111010108.6848.983
Percentage of NetIncomeLoss9.36.312.911.411.110.29.69.59.59.910.29.710.8
Percentage of InterestAndDividendIncomeOperating4.21.83.54.64.54.14.04.04.04.14.43.84.1
Percentage of InterestAndDividendIncomeOperating srt:ReportableGeographicalComponents wal:SouthernCalifornia0.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:NetIncomeLoss us-gaap:StatementEquityComponents

us-gaap:RetainedEarnings


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-06-302012-03-312011-12-312011-09-30
Value2231921931359383128127122120119111104100898279736967616160593440404035313128342013117.10113
Percentage of NetIncomeLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0102.9100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of InterestAndDividendIncomeOperating56.257.658.444.529.327.340.640.440.641.542.241.941.643.039.138.038.638.237.236.335.439.839.840.429.836.236.738.834.931.532.130.438.125.217.914.69.217.6
Percentage of InterestAndDividendIncomeOperating us-gaap:RetainedEarnings0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Net Income Loss Available To Common Stockholders Basic

us-gaap:NetIncomeLossAvailableToCommonStockholdersBasic

us-gaap:NetIncomeLossAvailableToCommonStockholdersBasic


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
Value223192193135938312812712212011911110410089827973696761615858344040403530302733203115129.5375.323.5923.7262.65-13.299-0.457-1.239
Percentage of NetIncomeLossAvailableToCommonStockholdersBasic100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of InterestAndDividendIncomeOperating56.257.658.444.529.327.340.640.440.641.542.241.941.643.039.138.038.638.237.236.335.439.838.640.329.636.136.438.434.531.131.830.037.724.837.719.216.212.36.94.85.13.7-18.4-0.6-1.8

Other Comprehensive Income Loss Net Of Tax

us-gaap:OtherComprehensiveIncomeLossNetOfTax

us-gaap:OtherComprehensiveIncomeLossNetOfTax


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-30
Value44-72.4134.9083612-10.5919.218342536-19.048-9.653-37.459-11.3091.6743.6397.546-41.087-10.2341311-14.6925.295-8.0756.7847.1561.0111910-7.042-3.754-17.955-1.021-3.8847.8193.4225.461-1.6482.858.946
Percentage of OtherComprehensiveIncomeLossNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of InterestAndDividendIncomeOperating11.2-21.74.11.611.44.1-3.42.911.48.713.0-7.2-3.8-16.0-5.00.81.83.9-21.9-5.57.67.2-9.73.6-6.96.16.51.019.210.6-7.2-4.1-20.1-1.2-4.69.94.47.1-2.13.812.1

us-gaap:OtherComprehensiveIncomeLossNetOfTax us-gaap:RetirementPlanType

us-gaap:SupplementalEmployeeRetirementPlanDefinedBenefit


Other
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-30
Value-0.5960.003-0.003-0.29-0.359-0.018-0.017-0.018-0.042-0.012-0.012-0.0110.1140.1140.037-0.0010.0130.006
Percentage of OtherComprehensiveIncomeLossNetOfTax-4.30.1-0.0-2.33.4-0.2-0.0-0.1-0.10.10.10.0-1.06.81.0-0.0-0.0-0.1
Percentage of InterestAndDividendIncomeOperating-0.20.0-0.0-0.1-0.1-0.0-0.0-0.0-0.0-0.0-0.0-0.00.00.10.0-0.00.00.0
Percentage of InterestAndDividendIncomeOperating us-gaap:SupplementalEmployeeRetirementPlanDefinedBenefit0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:OtherComprehensiveIncomeLossNetOfTax us-gaap:StatementEquityComponents

us-gaap:AccumulatedGainLossFinancialLiabilityFairValueOptionAttributableToParent


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value0.20.3-3.9712.681-3.0056.557-3.140.598-1.334-5.9285.507-2.0280.7481.466-0.9270.641
Percentage of OtherComprehensiveIncomeLossNetOfTax0.4-0.4-28.954.6-8.352.529.66.5-3.9-23.315.010.6-7.7-3.98.238.3
Percentage of InterestAndDividendIncomeOperating0.10.1-1.20.9-0.92.1-1.00.2-0.4-2.02.0-0.80.30.6-0.40.3
Percentage of InterestAndDividendIncomeOperating us-gaap:AccumulatedGainLossFinancialLiabilityFairValueOptionAttributableToParent0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:AccumulatedNetUnrealizedInvestmentGainLoss


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-31
Value44-72.1177.592396.222-7.0928.782353131-17.008-10.389-38.914-10.4960.9195.6918.776-40.514-7.4151210-10.3985.524-8.4126.7847.1561.0111910-7.042-3.724-18.002-0.987
Percentage of OtherComprehensiveIncomeLossNetOfTax100.499.6129.0154.7108.349.867.095.3103.9123.485.189.3107.6103.992.854.9156.4116.398.672.595.693.170.8104.3104.2100.0100.0100.0100.0100.0100.099.2100.396.7
Percentage of InterestAndDividendIncomeOperating11.2-21.65.32.512.32.0-2.22.811.910.811.1-6.4-4.1-16.6-4.60.42.74.6-21.6-4.07.36.7-6.93.8-7.26.16.51.019.210.6-7.2-4.0-20.2-1.2
Percentage of InterestAndDividendIncomeOperating us-gaap:AccumulatedNetUnrealizedInvestmentGainLoss0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:AccumulatedOtherComprehensiveIncome


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-31
Value44-72.4134.9083612-10.5919.218342536-19.048-9.653-37.459-11.3091.6743.6397.546-41.087-10.2341311-14.6925.295-8.0756.7847.1561.0111910-7.042-3.754-17.955-1.021
Percentage of OtherComprehensiveIncomeLossNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of InterestAndDividendIncomeOperating11.2-21.74.11.611.44.1-3.42.911.48.713.0-7.2-3.8-16.0-5.00.81.83.9-21.9-5.57.67.2-9.73.6-6.96.16.51.019.210.6-7.2-4.1-20.1-1.2
Percentage of InterestAndDividendIncomeOperating us-gaap:AccumulatedOtherComprehensiveIncome0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Assets

us-gaap:Assets

us-gaap:Assets


Assets
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-31
Value49069433973646133335319062915826821263242531423792231092217621367207602032919922188441812217200170421672815248142751395513470112511060010288100239746930789218593817476227403716369256844654565086193
Percentage of Assets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:Assets us-gaap:ConsolidatedEntities

srt:ParentCompany


Assetsus-gaap:
Period End2020-12-312019-12-312018-12-312017-12-31
Value3671327428572484
Percentage of Assets10.112.212.412.2
Percentage of Assets10.112.212.412.2
Percentage of Assets srt:ParentCompany100.0100.0100.0100.0

us-gaap:Assets us-gaap:ConsolidationItems

us-gaap:CorporateNonSegment


Assetsus-gaap:
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-31
Value12679142218984697365515633529057565661527450095075486648384867504144964102361636403467364127782792273823502142227724402589
Percentage of Assets25.832.824.620.920.519.319.721.922.422.221.722.922.823.323.925.323.922.621.021.420.723.919.520.020.320.920.222.124.326.6
Percentage of Assets25.832.824.620.920.519.319.721.922.422.221.722.922.823.323.925.323.922.621.021.420.723.919.520.020.320.920.222.124.326.6
Percentage of Assets us-gaap:CorporateNonSegment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:Assets us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments

us-gaap:OperatingSegments, wal:CommercialSegment


Assetsus-gaap:
Period End2021-06-302021-03-312020-12-312019-12-31
Value20997209952054817162
Percentage of Assets42.848.456.464.0
Percentage of Assets42.848.456.464.0
Percentage of Assets us-gaap:OperatingSegments wal:CommercialSegment100.0100.0100.0100.0

us-gaap:OperatingSegments, wal:ConsumerRelatedSegment


Assetsus-gaap:
Period End2021-06-302021-03-312020-12-312019-12-31
Value15391818069274369
Percentage of Assets31.418.819.016.3
Percentage of Assets31.418.819.016.3
Percentage of Assets us-gaap:OperatingSegments wal:ConsumerRelatedSegment100.0100.0100.0100.0

us-gaap:OperatingSegments, wal:HFFLoanPortfolio


Assetsus-gaap:
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-30
Value209220211967192718911653156314781435143113781329127512421283129613161282
Percentage of Assets6.36.36.77.27.26.56.66.46.56.76.66.56.46.67.17.57.77.7
Percentage of Assets6.36.36.77.27.26.56.66.46.56.76.66.56.46.67.17.57.77.7
Percentage of Assets us-gaap:OperatingSegments wal:HFFLoanPortfolio100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OperatingSegments, wal:HOAServices


Assetsus-gaap:
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-31
Value283277232236227213208209201185166161156149131115105979587
Percentage of Assets0.80.90.80.90.90.80.90.90.90.90.80.80.80.80.70.70.60.60.60.6
Percentage of Assets0.80.90.80.90.90.80.90.90.90.90.80.80.80.80.70.70.60.60.60.6
Percentage of Assets us-gaap:OperatingSegments wal:HOAServices100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OperatingSegments, wal:OtherNationalBusinessLines


Assetsus-gaap:
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-31
Value85277678731061235433504645674153347330062711253324972159193717691666149313351278
Percentage of Assets25.624.125.122.820.619.919.218.015.714.113.112.512.511.510.710.39.88.98.89.0
Percentage of Assets25.624.125.122.820.619.919.218.015.714.113.112.512.511.510.710.39.88.98.89.0
Percentage of Assets us-gaap:OperatingSegments wal:OtherNationalBusinessLines100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OperatingSegments, wal:PublicandNonProfitFinance


Assetsus-gaap:
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-31
Value16801686165516401579162815591553152515711539158215701546152414541441147914551457
Percentage of Assets5.05.35.76.16.06.46.66.76.97.47.47.87.98.28.48.58.58.89.510.2
Percentage of Assets5.05.35.76.16.06.46.66.76.97.47.47.87.98.28.48.58.58.89.510.2
Percentage of Assets us-gaap:OperatingSegments wal:PublicandNonProfitFinance100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OperatingSegments, wal:TechnologyandInnovation


Assetsus-gaap:
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-31
Value241622772140166614931363117513171222132012861213116511611128112910521060961887
Percentage of Assets7.27.17.36.25.75.44.95.75.56.26.26.05.96.26.26.66.26.36.36.2
Percentage of Assets7.27.17.36.25.75.44.95.75.56.26.26.05.96.26.26.66.26.36.36.2
Percentage of Assets us-gaap:OperatingSegments wal:TechnologyandInnovation100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:Assets us-gaap:ConsolidationItems, us-gaap:StatementGeographical

srt:ReportableGeographicalComponents, stpr:AZ


Assetsus-gaap:
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302017-12-31
Value4380433139873866398239533672366736103342
Percentage of Assets13.113.613.714.415.115.615.415.916.316.4
Percentage of Assets13.113.613.714.415.115.615.415.916.316.4
Percentage of Assets srt:ReportableGeographicalComponents stpr:AZ100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

srt:ReportableGeographicalComponents, stpr:NV


Assetsus-gaap:
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302017-12-31
Value2676276423752339226621792155209020211930
Percentage of Assets8.08.78.18.78.68.69.19.09.19.5
Percentage of Assets8.08.78.18.78.68.69.19.09.19.5
Percentage of Assets srt:ReportableGeographicalComponents stpr:NV100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

srt:ReportableGeographicalComponents, wal:NorthernCalifornia


Assetsus-gaap:
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302017-12-31
Value1942190515871478138813601369147114971435
Percentage of Assets5.86.05.45.55.35.45.86.46.87.1
Percentage of Assets5.86.05.45.55.35.45.86.46.87.1
Percentage of Assets srt:ReportableGeographicalComponents wal:NorthernCalifornia100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

srt:ReportableGeographicalComponents, wal:SouthernCalifornia


Assetsus-gaap:
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302017-12-31
Value2363241222672253230422552246215821131931
Percentage of Assets7.17.67.88.48.88.99.49.39.59.5
Percentage of Assets7.17.67.88.48.88.99.49.39.59.5
Percentage of Assets srt:ReportableGeographicalComponents wal:SouthernCalifornia100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Liabilities

us-gaap:Liabilities

us-gaap:Liabilities


Liabilities
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-31
Value45034396843304730111288032615823805234012246321072204951968718975184661809917776167861615315309151851493213587126831237111955102009599928590658851845180957794739268636705649162716207591358925591
Percentage of Liabilities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets91.891.490.690.390.389.788.888.988.788.688.788.888.889.089.089.289.189.189.089.189.389.188.988.788.890.790.690.390.490.890.890.790.790.490.090.690.690.690.790.390.590.3

us-gaap:Liabilities us-gaap:ConsolidatedEntities

srt:ParentCompany


Liabilitiesus-gaap:
Period End2020-12-312019-12-312018-12-312017-12-31
Value258257243254
Percentage of Liabilities0.81.11.21.4
Percentage of Assets0.71.01.11.3
Percentage of Assets srt:ParentCompany7.07.98.510.2

us-gaap:Liabilities us-gaap:ConsolidationItems

us-gaap:CorporateNonSegment


Liabilitiesus-gaap:
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-31
Value312720391489195924181928198816401498143519371021118811631098731668651741670701613676978687721776642718848
Percentage of Liabilities6.95.14.56.58.47.48.47.06.76.89.55.26.36.36.14.14.04.04.84.44.74.55.37.95.87.18.16.97.99.6
Percentage of Assets6.44.74.15.97.66.67.46.25.96.08.44.65.65.65.43.73.53.64.33.94.24.04.77.05.16.47.36.27.28.7
Percentage of Assets us-gaap:CorporateNonSegment24.714.316.628.136.934.237.628.526.527.238.720.124.424.022.614.514.915.920.518.420.216.924.435.025.130.736.228.229.432.8

us-gaap:Liabilities us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments

us-gaap:OperatingSegments, wal:CommercialSegment


Liabilitiesus-gaap:
Period End2021-06-302021-03-312020-12-312019-12-31
Value26565243522161817163
Percentage of Liabilities59.061.465.472.1
Percentage of Assets54.156.159.364.0
Percentage of Assets us-gaap:OperatingSegments wal:CommercialSegment126.5116.0105.2100.0

us-gaap:OperatingSegments, wal:ConsumerRelatedSegment


Liabilitiesus-gaap:
Period End2021-06-302021-03-312020-12-312019-12-31
Value153411329299404653
Percentage of Liabilities34.133.530.119.5
Percentage of Assets31.330.627.317.4
Percentage of Assets us-gaap:OperatingSegments wal:ConsumerRelatedSegment99.7162.5143.5106.5

us-gaap:OperatingSegments, wal:HFFLoanPortfolio


Liabilitiesus-gaap:
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-30
Value0.90.2-0.70.00.1-0.2-0.30.4-0.1-0.4-0.30.40.40.30.61.41.215
Percentage of Liabilities0.00.0-0.00.00.0-0.0-0.00.0-0.0-0.0-0.00.00.00.00.00.00.00.1
Percentage of Assets0.00.0-0.00.00.0-0.0-0.00.0-0.0-0.0-0.00.00.00.00.00.00.00.1
Percentage of Assets us-gaap:OperatingSegments wal:HFFLoanPortfolio0.00.0-0.00.00.0-0.0-0.00.0-0.0-0.0-0.00.00.00.00.00.10.11.2

us-gaap:OperatingSegments, wal:HOAServices


Liabilitiesus-gaap:
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-31
Value36953674354132113053304829652609252525172476223121542187211418911814171215291292
Percentage of Liabilities12.312.813.513.513.013.614.112.712.813.313.412.312.113.013.112.411.911.511.310.2
Percentage of Assets11.111.512.112.011.612.012.511.311.411.811.911.010.811.611.711.010.610.210.09.1
Percentage of Assets us-gaap:OperatingSegments wal:HOAServices1305.31325.51521.21358.71343.91426.01422.71248.51255.31356.11491.21382.71380.11467.11605.61633.01720.01756.61604.51473.7

us-gaap:OperatingSegments, wal:OtherNationalBusinessLines


Liabilitiesus-gaap:
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-31
Value118877539461246649851031245.5136491321759362140
Percentage of Liabilities0.40.30.30.20.20.60.30.20.40.50.70.00.80.30.80.10.40.20.20.3
Percentage of Assets0.40.30.30.10.20.50.30.20.40.50.60.00.70.30.70.10.30.20.10.3
Percentage of Assets us-gaap:OperatingSegments wal:OtherNationalBusinessLines1.41.11.00.60.92.51.41.22.53.44.60.25.42.36.81.03.62.41.63.2

us-gaap:OperatingSegments, wal:PublicandNonProfitFinance


Liabilitiesus-gaap:
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-31
Value911009453625834251017214246504350981058763
Percentage of Liabilities0.30.30.40.20.30.30.20.10.10.10.10.20.30.30.30.30.60.70.60.5
Percentage of Assets0.30.30.30.20.20.20.10.10.00.10.10.20.20.30.20.30.60.60.60.4
Percentage of Assets us-gaap:OperatingSegments wal:PublicandNonProfitFinance5.56.05.73.24.03.62.21.60.71.11.42.73.03.32.83.56.87.16.04.4

us-gaap:OperatingSegments, wal:TechnologyandInnovation


Liabilitiesus-gaap:
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-31
Value46514421415437713289285324042559231919931734173814601273114310401067963803842
Percentage of Liabilities15.415.415.915.814.112.711.412.511.810.59.49.68.27.67.16.87.06.45.96.6
Percentage of Assets14.013.914.214.112.511.310.111.110.59.38.48.67.36.86.36.06.35.85.35.9
Percentage of Assets us-gaap:OperatingSegments wal:TechnologyandInnovation192.5194.1194.1226.3220.3209.3204.6194.2189.8151.0134.9143.3125.3109.7101.392.1101.490.883.695.0

us-gaap:Liabilities us-gaap:ConsolidationItems, us-gaap:StatementGeographical

srt:ReportableGeographicalComponents, stpr:AZ


Liabilitiesus-gaap:
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302017-12-31
Value8570766165525402598961205331510053454852
Percentage of Liabilities28.526.625.022.725.627.225.324.927.126.8
Percentage of Assets25.724.022.520.122.824.222.422.124.123.9
Percentage of Assets srt:ReportableGeographicalComponents stpr:AZ195.6176.9164.3139.7150.4154.8145.2139.1148.1145.2

srt:ReportableGeographicalComponents, stpr:NV


Liabilitiesus-gaap:
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302017-12-31
Value4752466342574362427942004018401038633972
Percentage of Liabilities15.816.216.318.318.318.719.119.619.621.9
Percentage of Assets14.314.614.616.316.316.616.917.417.419.5
Percentage of Assets srt:ReportableGeographicalComponents stpr:NV177.6168.7179.3186.5188.8192.7186.4191.9191.1205.8

srt:ReportableGeographicalComponents, wal:NorthernCalifornia


Liabilitiesus-gaap:
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302017-12-31
Value2761274425242389228520232022185119631693
Percentage of Liabilities9.29.59.710.09.89.09.69.010.09.4
Percentage of Assets8.38.68.78.98.78.08.58.08.98.3
Percentage of Assets srt:ReportableGeographicalComponents wal:NorthernCalifornia142.1144.1159.0161.7164.6148.8147.7125.8131.1118.0

srt:ReportableGeographicalComponents, wal:SouthernCalifornia


Liabilitiesus-gaap:
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302017-12-31
Value3510303130302586275325362794235225522464
Percentage of Liabilities11.710.511.610.911.811.313.311.513.013.6
Percentage of Assets10.59.510.49.610.510.011.710.211.512.1
Percentage of Assets srt:ReportableGeographicalComponents wal:SouthernCalifornia148.6125.6133.6114.8119.5112.5124.4109.0120.8127.6

Liabilities And Stockholders Equity

us-gaap:LiabilitiesAndStockholdersEquity

us-gaap:LiabilitiesAndStockholdersEquity


Liabilities
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-31
Value49069433973646133335319062915826821263242531423792231092217621367207602032919922188441812217200170421672815248142751395513470112511060010288100239746930789218593817476227403716369256844654565086193
Percentage of LiabilitiesAndStockholdersEquity100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:LiabilitiesAndStockholdersEquity us-gaap:ConsolidatedEntities

srt:ParentCompany


Liabilities
Period End2020-12-312019-12-312018-12-312017-12-31
Value3671327428572484
Percentage of LiabilitiesAndStockholdersEquity10.112.212.412.2
Percentage of Assets10.112.212.412.2
Percentage of Assets srt:ParentCompany100.0100.0100.0100.0

us-gaap:LiabilitiesAndStockholdersEquity us-gaap:ConsolidationItems

us-gaap:CorporateNonSegment


Liabilities
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-31
Value36342948233121462588220624982116198319042360139715373356139898991381789085083977980111288167898867998881014
Percentage of LiabilitiesAndStockholdersEquity7.46.86.46.48.17.69.38.07.88.010.26.37.216.26.95.04.84.55.25.05.05.15.68.16.17.08.47.88.910.4
Percentage of Assets7.46.86.46.48.17.69.38.07.88.010.26.37.216.26.95.04.84.55.25.05.05.15.68.16.17.08.47.88.910.4
Percentage of Assets us-gaap:CorporateNonSegment28.720.725.930.839.539.247.236.835.036.147.127.531.669.428.719.620.319.924.623.424.221.428.840.429.833.641.435.136.439.2

us-gaap:LiabilitiesAndStockholdersEquity us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments

us-gaap:OperatingSegments, wal:CommercialSegment


Liabilities
Period End2021-06-302021-03-312020-12-312019-12-31
Value28743264522361019223
Percentage of LiabilitiesAndStockholdersEquity58.661.064.871.7
Percentage of Assets58.661.064.871.7
Percentage of Assets us-gaap:OperatingSegments wal:CommercialSegment136.9126.0114.9112.0

us-gaap:OperatingSegments, wal:ConsumerRelatedSegment


Liabilities
Period End2021-06-302021-03-312020-12-312019-12-31
Value1669013995105195100
Percentage of LiabilitiesAndStockholdersEquity34.032.228.919.0
Percentage of Assets34.032.228.919.0
Percentage of Assets us-gaap:OperatingSegments wal:ConsumerRelatedSegment108.4171.1151.8116.7

us-gaap:OperatingSegments, wal:HFFLoanPortfolio


Liabilities
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-30
Value1681661571581521381301221191178.0108104101106108109119
Percentage of LiabilitiesAndStockholdersEquity0.50.50.50.60.60.50.50.50.50.50.00.50.50.50.60.60.60.7
Percentage of Assets0.50.50.50.60.60.50.50.50.50.50.00.50.50.50.60.60.60.7
Percentage of Assets us-gaap:OperatingSegments wal:HFFLoanPortfolio8.08.38.08.28.18.48.38.38.38.20.68.28.28.18.38.48.39.3

us-gaap:OperatingSegments, wal:HOAServices


Liabilities
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-31
Value38003772364032963141312830422680259425842482229122112244218719561861175615681326
Percentage of LiabilitiesAndStockholdersEquity11.411.812.512.311.912.412.811.611.712.112.011.311.111.912.111.410.910.510.39.3
Percentage of Assets11.411.812.512.311.912.412.811.611.712.112.011.311.111.912.111.410.910.510.39.3
Percentage of Assets us-gaap:OperatingSegments wal:HOAServices1342.31360.91563.71394.41382.71463.41460.01282.31289.31392.31494.81419.51416.91505.41661.01689.61764.01801.31646.21512.7

us-gaap:OperatingSegments, wal:OtherNationalBusinessLines


Liabilities
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-31
Value791711650534472538440389371351133211343225294163198160131146
Percentage of LiabilitiesAndStockholdersEquity2.42.22.22.01.82.11.91.71.71.60.61.01.71.21.60.91.21.00.91.0
Percentage of Assets2.42.22.22.01.82.11.91.71.71.60.61.01.71.21.60.91.21.00.91.0
Percentage of Assets us-gaap:OperatingSegments wal:OtherNationalBusinessLines9.39.38.98.78.710.79.69.410.711.74.98.313.710.415.29.211.910.79.811.5

us-gaap:OperatingSegments, wal:PublicandNonProfitFinance


Liabilities
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-31
Value22223522118418519016014913114322168172177165167184194175151
Percentage of LiabilitiesAndStockholdersEquity0.70.70.80.70.70.80.70.60.60.70.10.80.90.90.91.01.11.21.11.1
Percentage of Assets0.70.70.80.70.70.80.70.60.60.70.10.80.90.90.91.01.11.21.11.1
Percentage of Assets us-gaap:OperatingSegments wal:PublicandNonProfitFinance13.214.013.411.311.711.710.39.68.69.11.510.711.011.510.811.512.813.212.010.4

us-gaap:OperatingSegments, wal:TechnologyandInnovation


Liabilities
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-31
Value50494806452640893589313026582827257622511745198216941502136812641285118010091043
Percentage of LiabilitiesAndStockholdersEquity15.115.115.515.213.612.411.212.211.610.58.49.88.58.07.67.47.57.16.67.3
Percentage of Assets15.115.115.515.213.612.411.212.211.610.58.49.88.58.07.67.47.57.16.67.3
Percentage of Assets us-gaap:OperatingSegments wal:TechnologyandInnovation209.0211.0211.5245.4240.4229.7226.1214.6210.7170.5135.7163.4145.4129.4121.3111.9122.1111.4105.0117.6

us-gaap:LiabilitiesAndStockholdersEquity us-gaap:ConsolidationItems, us-gaap:StatementGeographical

srt:ReportableGeographicalComponents, stpr:AZ


Liabilities
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302017-12-31
Value9146820770485856647666045779554157855249
Percentage of LiabilitiesAndStockholdersEquity27.425.724.221.824.626.124.324.026.125.8
Percentage of Assets27.425.724.221.824.626.124.324.026.125.8
Percentage of Assets srt:ReportableGeographicalComponents stpr:AZ208.8189.5176.8151.4162.6167.1157.4151.1160.2157.0

srt:ReportableGeographicalComponents, stpr:NV


Liabilities
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302017-12-31
Value5096500945634663457844864301428841344236
Percentage of LiabilitiesAndStockholdersEquity15.315.715.617.417.417.718.118.618.620.8
Percentage of Assets15.315.715.617.417.417.718.118.618.620.8
Percentage of Assets srt:ReportableGeographicalComponents stpr:NV190.4181.2192.1199.4202.0205.9199.6205.1204.5219.5

srt:ReportableGeographicalComponents, wal:NorthernCalifornia


Liabilities
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302017-12-31
Value3122310128522702259223212321215522721996
Percentage of LiabilitiesAndStockholdersEquity9.49.79.810.19.89.29.89.310.29.8
Percentage of Assets9.49.79.810.19.89.29.89.310.29.8
Percentage of Assets srt:ReportableGeographicalComponents wal:NorthernCalifornia160.7162.8179.7182.8186.7170.6169.5146.4151.8139.1

srt:ReportableGeographicalComponents, wal:SouthernCalifornia


Liabilities
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302017-12-31
Value3791330632912839301827923054259427952686
Percentage of LiabilitiesAndStockholdersEquity11.410.411.310.611.511.012.811.212.613.2
Percentage of Assets11.410.411.310.611.511.012.811.212.613.2
Percentage of Assets srt:ReportableGeographicalComponents wal:SouthernCalifornia160.5137.1145.2126.0131.0123.8136.0120.2132.3139.1

Stockholders Equity

us-gaap:StockholdersEquity

us-gaap:StockholdersEquity


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-312009-12-312008-12-31
Value4034371234133224310229993016292328512720261324882391229322292145205819691891185717961660159115831514105110001003957894855826799781759698672654636632615602575495
Percentage of StockholdersEquity100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets8.28.69.49.79.710.311.211.111.311.411.311.211.211.011.010.810.910.911.010.910.710.911.111.311.29.39.49.79.69.29.29.39.39.610.09.49.49.49.39.79.59.70.00.0

us-gaap:StockholdersEquity us-gaap:ConsolidatedEntities

srt:ParentCompany


Stockholders
Period End2020-12-312019-12-312018-12-312017-12-31
Value3413301626132229
Percentage of StockholdersEquity100.0100.0100.0100.0
Percentage of Assets9.411.211.311.0
Percentage of Assets srt:ParentCompany93.092.191.589.8

us-gaap:StockholdersEquity us-gaap:ConsolidationItems

us-gaap:CorporateNonSegment


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-31
Value507909842187169278509476485468422375349219330025824516614918013816512414912867110156170165
Percentage of StockholdersEquity12.624.524.75.85.59.316.916.317.017.216.215.114.695.613.512.011.98.47.99.77.710.07.89.48.56.411.015.617.818.5
Percentage of Assets1.02.12.30.60.51.01.91.81.92.01.81.71.610.61.51.31.30.90.91.10.81.10.91.11.00.61.01.51.71.7
Percentage of Assets us-gaap:CorporateNonSegment4.06.49.42.72.64.99.68.38.68.98.47.47.245.36.25.15.54.04.14.94.04.54.55.44.72.95.26.97.06.4

us-gaap:StockholdersEquity us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments

us-gaap:OperatingSegments, wal:CommercialSegment


Stockholders
Period End2021-06-302021-03-312020-12-312019-12-31
Value2178210019922060
Percentage of StockholdersEquity54.056.658.468.3
Percentage of Assets4.44.85.57.7
Percentage of Assets us-gaap:OperatingSegments wal:CommercialSegment10.410.09.712.0

us-gaap:OperatingSegments, wal:ConsumerRelatedSegment


Stockholders
Period End2021-06-302021-03-312020-12-312019-12-31
Value1348702579446
Percentage of StockholdersEquity33.418.917.014.8
Percentage of Assets2.71.61.61.7
Percentage of Assets us-gaap:OperatingSegments wal:ConsumerRelatedSegment8.88.68.410.2

us-gaap:OperatingSegments, wal:HFFLoanPortfolio


Stockholders
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-30
Value1671661581581521381301221191178.3108104100105107108104
Percentage of StockholdersEquity5.25.45.35.35.24.94.84.74.84.90.44.94.94.95.45.75.85.8
Percentage of Assets0.50.50.50.60.60.50.50.50.50.60.00.50.50.50.60.60.60.6
Percentage of Assets us-gaap:OperatingSegments wal:HFFLoanPortfolio8.08.28.18.28.18.48.38.38.38.20.68.18.28.18.28.38.28.2

us-gaap:OperatingSegments, wal:HOAServices


Stockholders
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-31
Value1049898848879777068675.9595757726546433934
Percentage of StockholdersEquity3.33.23.32.83.02.82.92.72.82.80.32.72.72.83.73.52.52.42.42.1
Percentage of Assets0.30.30.30.30.30.30.30.30.30.30.00.30.30.30.40.40.30.30.30.2
Percentage of Assets us-gaap:OperatingSegments wal:HOAServices37.135.442.535.738.737.437.333.834.036.23.636.836.838.355.456.644.044.741.739.0

us-gaap:OperatingSegments, wal:OtherNationalBusinessLines


Stockholders
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-31
Value6736245754944264143743402862489.3206207175162145139124110105
Percentage of StockholdersEquity20.920.119.216.414.614.513.813.011.510.40.49.29.78.58.27.77.56.96.66.6
Percentage of Assets2.02.02.01.81.61.61.61.51.31.20.01.01.00.90.90.80.80.70.70.7
Percentage of Assets us-gaap:OperatingSegments wal:OtherNationalBusinessLines7.98.17.98.17.88.28.28.28.28.20.38.18.38.18.48.28.38.38.28.3

us-gaap:OperatingSegments, wal:PublicandNonProfitFinance


Stockholders
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-31
Value1301351271311221321261231211251.312612612612211786898787
Percentage of StockholdersEquity4.04.44.34.44.24.64.64.74.95.20.15.75.96.16.26.24.65.05.35.5
Percentage of Assets0.40.40.40.50.50.50.50.50.50.60.00.60.60.70.70.70.50.50.60.6
Percentage of Assets us-gaap:OperatingSegments wal:PublicandNonProfitFinance7.88.07.78.07.78.18.18.08.08.00.18.08.08.28.08.16.06.06.06.0

us-gaap:OperatingSegments, wal:TechnologyandInnovation


Stockholders
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-31
Value39738437131730027725326825625711244234229225224218217205200
Percentage of StockholdersEquity12.312.412.410.510.39.79.310.310.310.80.510.910.911.111.511.811.712.112.412.6
Percentage of Assets1.21.21.31.21.11.11.11.21.21.20.11.21.21.21.21.31.31.31.41.4
Percentage of Assets us-gaap:OperatingSegments wal:TechnologyandInnovation16.516.917.419.120.120.421.520.421.019.50.920.120.119.820.019.820.720.521.422.6

us-gaap:StockholdersEquity us-gaap:ConsolidationItems, us-gaap:StatementGeographical

srt:ReportableGeographicalComponents, stpr:AZ


Stockholders
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302017-12-31
Value576545495453487484447441439396
Percentage of StockholdersEquity17.917.616.515.016.717.016.516.917.717.8
Percentage of Assets1.71.71.71.71.91.91.91.92.02.0
Percentage of Assets srt:ReportableGeographicalComponents stpr:AZ13.212.612.411.712.212.312.212.012.211.9

srt:ReportableGeographicalComponents, stpr:NV


Stockholders
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302017-12-31
Value343345305301298286283277270263
Percentage of StockholdersEquity10.711.110.210.010.210.010.410.610.911.8
Percentage of Assets1.01.11.01.11.11.11.21.21.21.3
Percentage of Assets srt:ReportableGeographicalComponents stpr:NV12.812.512.912.913.213.113.113.313.413.7

srt:ReportableGeographicalComponents, wal:NorthernCalifornia


Stockholders
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302017-12-31
Value361356327312306297298304308303
Percentage of StockholdersEquity11.211.510.910.410.510.411.011.612.413.6
Percentage of Assets1.11.11.11.21.21.21.31.31.41.5
Percentage of Assets srt:ReportableGeographicalComponents wal:NorthernCalifornia18.618.720.621.122.121.921.820.720.621.1

srt:ReportableGeographicalComponents, wal:SouthernCalifornia


Stockholders
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302017-12-31
Value281275260253265255260242242221
Percentage of StockholdersEquity8.78.98.78.49.19.09.69.39.79.9
Percentage of Assets0.80.90.90.91.01.01.11.11.11.1
Percentage of Assets srt:ReportableGeographicalComponents wal:SouthernCalifornia11.911.411.511.211.511.311.611.311.511.5

us-gaap:StockholdersEquity us-gaap:StatementEquityComponents

us-gaap:AccumulatedOtherComprehensiveIncome


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-312009-12-312008-12-31
Value641992787337253526-8.191-33.622-70.363-51.315-41.662-3.1458.1646.492.851-4.69536463322201523169.4838.472-11.131-21.546-14.504-10.757.2058.226124.2910.868-4.593-2.945-5.795-9.4225.405-28.491
Percentage of StockholdersEquity1.60.52.72.42.41.30.81.20.9-0.3-1.3-2.8-2.1-1.8-0.10.40.30.1-0.22.02.62.01.41.31.02.21.70.90.9-1.2-2.5-1.8-1.30.91.11.70.60.1-0.7-0.5-0.9-1.60.9-5.7
Percentage of Assets0.10.00.30.20.20.10.10.10.1-0.0-0.1-0.3-0.2-0.2-0.00.00.00.0-0.00.20.30.20.20.10.10.20.20.10.1-0.1-0.2-0.2-0.10.10.10.20.10.0-0.1-0.0-0.1-0.20.00.0
Percentage of Assets us-gaap:AccumulatedOtherComprehensiveIncome0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:AdditionalPaidInCapital


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-312009-12-312008-12-31
Value1687160813901383137613701374136813721390141714441438143114241418141314061400139413891328130612731268831828807803795797792789786784751748746743743741739684484
Percentage of StockholdersEquity41.843.340.742.944.445.745.646.848.151.154.258.160.262.463.966.168.671.574.075.177.480.082.180.483.879.182.880.583.988.993.295.998.7100.7103.3107.6111.3114.1116.8117.5120.4122.8118.897.7
Percentage of Assets3.43.73.84.24.34.75.15.25.45.86.16.56.76.97.07.17.57.88.18.28.38.79.29.19.47.47.87.88.08.28.68.99.29.610.310.110.410.810.911.411.411.90.00.0
Percentage of Assets us-gaap:AdditionalPaidInCapital0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:CommonStock


Stockholders
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-312009-12-312008-12-31
Value0.010.010.010.010.010.010.010.010.010.010.010.010.010.010.010.010.010.010.010.010.010.010.0090.0090.0090.0090.0090.0090.0090.0090.0090.0090.0080.0080.0080.0080.0080.0080.0080.0070.004
Percentage of StockholdersEquity0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of Assets us-gaap:CommonStock0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:RetainedEarnings


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-312009-12-312008-12-31
Value236621682001183317221661168015811513139912821166105595084875867559552245238532326221815912585454.807-30.379-61.358-92.357-120.196-153.86-174.471-206.232-221.338-233.974-243.512-248.833-252.424-258.8-241.724-85.424
Percentage of StockholdersEquity58.758.458.656.955.555.455.754.153.151.449.146.944.141.438.135.432.830.327.624.421.519.516.513.810.611.98.54.50.5-3.4-7.2-11.2-15.0-19.7-23.0-29.5-32.9-35.8-38.2-39.4-41.0-43.0-42.0-17.2
Percentage of Assets4.85.05.55.55.45.76.36.06.05.95.65.34.94.64.23.83.63.33.02.72.32.11.81.61.21.10.80.40.0-0.3-0.7-1.0-1.4-1.9-2.3-2.8-3.1-3.4-3.6-3.8-3.9-4.20.00.0
Percentage of Assets us-gaap:RetainedEarnings0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:TreasuryStock


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312013-12-31
Value8484-71.171-70.583-70.186-62.728-62.665-61.134-60.983-53.083-52.035-50.971-46.469-40.173-40.004-36.651-36.605-26.362-26.21-25.924-25.828-16.879-16.716-16.223-16.164-9.276-5.164
Percentage of StockholdersEquity2.12.3-2.12.2-2.3-2.3-2.1-2.1-2.1-2.2-2.0-2.1-2.1-2.0-1.8-1.9-1.8-1.9-1.4-1.4-1.4-1.6-1.1-1.1-1.1-1.5-0.9-0.6
Percentage of Assets0.20.2-0.20.2-0.2-0.2-0.2-0.2-0.2-0.3-0.2-0.2-0.2-0.2-0.2-0.2-0.2-0.2-0.2-0.2-0.2-0.2-0.1-0.1-0.1-0.1-0.1-0.1
Percentage of Assets us-gaap:TreasuryStock0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Tier One Risk Based Capital

us-gaap:TierOneRiskBasedCapital dei:LegalEntity

us-gaap:TierOneRiskBasedCapital

wal:WesternAllianceBank


Tier
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312015-09-302015-06-302015-03-312014-12-312013-12-312012-12-312011-12-31
Value30782703231720031720121311631142965945834218188
Percentage of TierOneRiskBasedCapital100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets8.410.110.09.910.08.58.38.58.68.99.02.92.8
Percentage of Assets wal:WesternAllianceBank0.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:TierOneRiskBasedCapital us-gaap:ConsolidatedEntities

srt:ParentCompany


Tier
Period End2020-12-312019-12-312018-12-312017-12-31
Value3158277524312013
Percentage of TierOneRiskBasedCapital102.6102.7104.9100.5
Percentage of Assets8.710.310.59.9
Percentage of Assets srt:ParentCompany86.084.885.181.1

Cash And Cash Equivalents At Carrying Value

us-gaap:CashAndCashEquivalentsAtCarryingValue

us-gaap:CashAndCashEquivalentsAtCarryingValue


Cash
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302009-12-312008-12-31
Value3395534626711418151841543487210677854987005064394166506066472843566961030224325758492164258379465305509382556204307178179154305534363216615560396139
Percentage of CashAndCashEquivalentsAtCarryingValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets6.912.37.34.34.81.41.63.34.23.32.23.22.42.12.13.33.23.61.72.14.26.81.62.35.64.41.62.53.84.83.35.74.56.82.74.22.52.62.34.78.20.03.50.00.00.00.0

us-gaap:CashAndCashEquivalentsAtCarryingValue us-gaap:ConsolidatedEntities

srt:ParentCompany


Cash
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-31
Value557511556117.627
Percentage of CashAndCashEquivalentsAtCarryingValue2.117.523.213.64.03.4
Percentage of Assets0.20.30.50.30.10.1
Percentage of Assets srt:ParentCompany1.52.34.12.30.00.0

Property Plant And Equipment Gross

us-gaap:PropertyPlantAndEquipmentGross

us-gaap:PropertyPlantAndEquipmentGross


Property
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-31
Value240217197184189178186187175167
Percentage of PropertyPlantAndEquipmentGross100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.70.80.90.91.11.21.82.02.32.4

Furniture And Fixtures Gross

us-gaap:FurnitureAndFixturesGross

us-gaap:FurnitureAndFixturesGross


Furniture
Period End2020-12-312019-12-312018-12-31
Value685342
Percentage of FurnitureAndFixturesGross100.0100.0100.0
Percentage of Assets0.20.20.2

Leasehold Improvements Gross

us-gaap:LeaseholdImprovementsGross

us-gaap:LeaseholdImprovementsGross


Leasehold
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-31
Value29282523221818151512
Percentage of LeaseholdImprovementsGross100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.10.10.10.10.10.10.20.20.20.2

Construction In Progress Gross

us-gaap:ConstructionInProgressGross

us-gaap:ConstructionInProgressGross


Construction
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-31
Value17106.3021.4154.841.9990.8485.3352.4410.982
Percentage of ConstructionInProgressGross100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.00.00.00.00.00.00.00.10.00.0

Accumulated Depreciation Depletion And Amortization Property Plant And Equipment

us-gaap:AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment

us-gaap:AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment


Accumulated
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-31
Value106917865695972676761
Percentage of AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.30.30.30.30.40.40.70.70.90.9

Amortization Of Intangible Assets

us-gaap:AmortizationOfIntangibleAssets

us-gaap:AmortizationOfIntangibleAssets


Amortization
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
Value1800000.0500000.0480000.0373000.0374000.0373000.0386000.0387000.0387000.0387000.0405000.0398000.0399000.0398000.0434000.0489000.0488000.0689000.0709000.0697000.0697000.0697000.0704000.0704000.0281000.0281000.0281000.0281000.0302000.0597000.0597000.0597000.0597000.0597000.0596000.0880000.0890000.0890000.0890000.0890000.0890000.0890000.0890000.0901000.0907000.0
Percentage of AmortizationOfIntangibleAssets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Property Plant And Equipment Net

us-gaap:PropertyPlantAndEquipmentNet

us-gaap:PropertyPlantAndEquipmentNet


Property
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-31
Value150138134128127125125125123119119119115116118120120120119121120119118121116114113112109106120105106107107106106105105106109114
Percentage of PropertyPlantAndEquipmentNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.30.30.40.40.40.40.50.50.50.50.50.50.50.60.60.60.60.70.70.70.70.80.80.90.91.01.11.11.11.11.31.21.21.31.41.41.51.51.51.61.71.8

Goodwill

us-gaap:Goodwill

us-gaap:Goodwill


Goodwill
Period End2021-04-072020-12-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-31
Value1752892892892892892892892892892892892892892902892892882892892822323232323232323232323252525252525
Percentage of Goodwill100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.00.81.11.11.11.21.31.31.41.41.41.51.51.61.71.71.71.92.02.12.10.20.20.20.20.20.20.30.30.30.30.30.40.40.40.40.40.4

Finite Lived Intangible Assets Net

us-gaap:FiniteLivedIntangibleAssetsNet

us-gaap:FiniteLivedIntangibleAssetsNet


Finite
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-31
Value8.27.3638.91101215
Percentage of FiniteLivedIntangibleAssetsNet100.0100.0100.0100.0100.0100.0
Percentage of Assets0.00.00.00.10.10.1

us-gaap:FiniteLivedIntangibleAssetsNet us-gaap:FiniteLivedIntangibleAssetsByMajorClass

us-gaap:CoreDeposits


Finite
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-31
Value5.87.3638.911012152.689
Percentage of FiniteLivedIntangibleAssetsNet70.7100.0100.0100.0100.0100.00.0
Percentage of Assets0.00.00.00.10.10.10.0
Percentage of Assets us-gaap:CoreDeposits0.00.00.00.00.00.00.0

us-gaap:CustomerRelationships


Finite
Period End2020-12-31
Value2.4
Percentage of FiniteLivedIntangibleAssetsNet29.3
Percentage of Assets0.0
Percentage of Assets us-gaap:CustomerRelationships0.0

Intangible Assets Net Including Goodwill

us-gaap:IntangibleAssetsNetIncludingGoodwill

us-gaap:IntangibleAssetsNetIncludingGoodwill


Intangible
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-31
Value6102982982982962972972982982982992993003003003013013023023033043043053053002525262626
Percentage of IntangibleAssetsNetIncludingGoodwill100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets1.20.70.80.90.91.01.11.11.21.31.31.41.41.41.51.51.61.71.81.81.82.02.12.22.20.20.20.30.30.3

us-gaap:IntangibleAssetsNetIncludingGoodwill us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments

us-gaap:OperatingSegments, wal:CommercialSegment


Intangible
Period End2021-06-302021-03-312020-12-312019-12-31
Value295295296297
Percentage of IntangibleAssetsNetIncludingGoodwill48.499.299.2100.0
Percentage of Assets0.60.70.81.1
Percentage of Assets us-gaap:OperatingSegments wal:CommercialSegment1.41.41.41.7

us-gaap:OperatingSegments, wal:ConsumerRelatedSegment


Intangible
Period End2021-06-302021-03-312020-12-31
Value3152.32.4
Percentage of IntangibleAssetsNetIncludingGoodwill51.60.80.8
Percentage of Assets0.60.00.0
Percentage of Assets us-gaap:OperatingSegments wal:ConsumerRelatedSegment2.00.00.0

us-gaap:OperatingSegments, wal:HFFLoanPortfolio


Intangible
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-30
Value0.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.20.20.2
Percentage of IntangibleAssetsNetIncludingGoodwill0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.10.10.1
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of Assets us-gaap:OperatingSegments wal:HFFLoanPortfolio0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:OperatingSegments, wal:OtherNationalBusinessLines


Intangible
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-31
Value2.50.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of IntangibleAssetsNetIncludingGoodwill0.80.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of Assets us-gaap:OperatingSegments wal:OtherNationalBusinessLines0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:OperatingSegments, wal:TechnologyandInnovation


Intangible
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-31
Value119119119119119120120120120120120120121121121121121122122122
Percentage of IntangibleAssetsNetIncludingGoodwill39.940.240.240.240.240.240.240.240.240.240.240.240.240.240.240.140.140.240.140.1
Percentage of Assets0.40.40.40.40.50.50.50.50.50.60.60.60.60.60.70.70.70.70.80.9
Percentage of Assets us-gaap:OperatingSegments wal:TechnologyandInnovation4.95.25.67.28.08.810.29.19.89.19.410.010.410.410.810.811.611.512.713.8

us-gaap:IntangibleAssetsNetIncludingGoodwill us-gaap:ConsolidationItems, us-gaap:StatementGeographical

srt:ReportableGeographicalComponents, wal:NorthernCalifornia


Intangible
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302017-12-31
Value153154154154154155155155155156
Percentage of IntangibleAssetsNetIncludingGoodwill51.551.951.951.952.052.052.052.052.052.0
Percentage of Assets0.50.50.50.60.60.60.70.70.70.8
Percentage of Assets srt:ReportableGeographicalComponents wal:NorthernCalifornia7.98.19.710.511.211.411.310.610.410.9

Deferred Tax Assets Liabilities Net

us-gaap:DeferredTaxAssetsLiabilitiesNet

us-gaap:DeferredTaxAssetsLiabilitiesNet


Deferred
Period End2020-12-312020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-31
Value3127183.6729.31922314339275.78838788957265738678825962676878797982545136485561627179
Percentage of DeferredTaxAssetsLiabilitiesNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.10.10.10.00.00.10.10.20.20.10.00.40.50.50.60.40.40.50.60.60.60.50.60.70.70.80.90.91.00.70.70.50.70.80.91.01.11.3

Operating Lease Right Of Use Asset

us-gaap:OperatingLeaseRightOfUseAsset

us-gaap:OperatingLeaseRightOfUseAsset


Operating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value947772717072727471720.0
Percentage of OperatingLeaseRightOfUseAsset100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0
Percentage of Assets0.20.20.20.20.20.20.30.30.30.30.0

Equity Securities Fv Ni

us-gaap:EquitySecuritiesFvNi

us-gaap:EquitySecuritiesFvNi


Equity
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302017-12-31
Value1931921671601381311381261141181151720.0
Percentage of EquitySecuritiesFvNi100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0
Percentage of Assets0.40.40.50.50.40.40.50.50.50.50.50.80.0

us-gaap:EquitySecuritiesFvNi us-gaap:ConsolidatedEntities

srt:ParentCompany


Equity
Period End2020-12-312019-12-312018-12-31
Value494749
Percentage of EquitySecuritiesFvNi29.834.043.3
Percentage of Assets0.10.20.2
Percentage of Assets srt:ParentCompany1.41.41.7

us-gaap:EquitySecuritiesFvNi us-gaap:ExternalCreditRatingByGrouping

wal:CorporateCreditQualityIndicatorBbPlusAndBelow


Equity
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value39393937121.9412.1054.0414.033.9253.69339
Percentage of EquitySecuritiesFvNi20.420.323.323.19.31.51.53.23.53.33.222.7
Percentage of Assets0.10.10.10.10.00.00.00.00.00.00.00.2
Percentage of Assets wal:CorporateCreditQualityIndicatorBbPlusAndBelow0.00.00.00.00.00.00.00.00.00.00.00.0

wal:CorporateCreditQualityIndicatorBbbPlusToBbbMinus


Equity
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value818173686875826048474572
Percentage of EquitySecuritiesFvNi42.242.143.842.949.357.559.747.842.740.639.842.4
Percentage of Assets0.20.20.20.20.20.30.30.20.20.20.20.3
Percentage of Assets wal:CorporateCreditQualityIndicatorBbbPlusToBbbMinus0.00.00.00.00.00.00.00.00.00.00.00.0

wal:CorporateCreditQualityIndicatorSplitAaaToAaPlus


Equity
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value272727272727252525252526
Percentage of EquitySecuritiesFvNi14.214.216.617.320.020.818.320.122.121.522.115.3
Percentage of Assets0.10.10.10.10.10.10.10.10.10.10.10.1
Percentage of Assets wal:CorporateCreditQualityIndicatorSplitAaaToAaPlus0.00.00.00.00.00.00.00.00.00.00.00.0

wal:CorporateCreditQualityIndicatorUnrated


Equity
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value454527262926283636404033
Percentage of EquitySecuritiesFvNi23.223.416.316.621.520.220.529.031.734.635.019.7
Percentage of Assets0.10.10.10.10.10.10.10.10.10.20.20.2
Percentage of Assets wal:CorporateCreditQualityIndicatorUnrated0.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:EquitySecuritiesFvNi us-gaap:ExternalCreditRatingByGrouping, us-gaap:FinancialInstrument

wal:CorporateCreditQualityIndicatorBbPlusAndBelow, us-gaap:PreferredStock


Equity
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value39393937121.9412.1054.0414.033.9253.69339
Percentage of EquitySecuritiesFvNi20.420.323.323.19.31.51.53.23.53.33.222.7
Percentage of Assets0.10.10.10.10.00.00.00.00.00.00.00.2
Percentage of Assets wal:CorporateCreditQualityIndicatorBbPlusAndBelow us-gaap:PreferredStock0.00.00.00.00.00.00.00.00.00.00.00.0

wal:CorporateCreditQualityIndicatorBbbPlusToBbbMinus, us-gaap:PreferredStock


Equity
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value818173686875826048474572
Percentage of EquitySecuritiesFvNi42.242.143.842.949.357.559.747.842.740.639.842.4
Percentage of Assets0.20.20.20.20.20.30.30.20.20.20.20.3
Percentage of Assets wal:CorporateCreditQualityIndicatorBbbPlusToBbbMinus us-gaap:PreferredStock0.00.00.00.00.00.00.00.00.00.00.00.0

wal:CorporateCreditQualityIndicatorSplitAaaToAaPlus, wal:CraInvestments


Equity
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value272727272727252525252526
Percentage of EquitySecuritiesFvNi14.214.216.617.320.020.818.320.122.121.522.115.3
Percentage of Assets0.10.10.10.10.10.10.10.10.10.10.10.1
Percentage of Assets wal:CorporateCreditQualityIndicatorSplitAaaToAaPlus wal:CraInvestments0.00.00.00.00.00.00.00.00.00.00.00.0

wal:CorporateCreditQualityIndicatorUnrated, us-gaap:PreferredStock


Equity
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value15151.70.9360.9490.7081.2419.559.54314149.527
Percentage of EquitySecuritiesFvNi8.07.81.00.60.70.50.97.58.312.312.65.5
Percentage of Assets0.00.00.00.00.00.00.00.00.00.10.10.0
Percentage of Assets wal:CorporateCreditQualityIndicatorUnrated us-gaap:PreferredStock0.00.00.00.00.00.00.00.00.00.00.00.0

wal:CorporateCreditQualityIndicatorUnrated, wal:CraInvestments


Equity
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value293025252825272726262524
Percentage of EquitySecuritiesFvNi15.215.615.316.020.819.719.621.423.322.222.414.2
Percentage of Assets0.10.10.10.10.10.10.10.10.10.10.10.1
Percentage of Assets wal:CorporateCreditQualityIndicatorUnrated wal:CraInvestments0.00.00.00.00.00.00.00.00.00.00.00.0

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

us-gaap:PreferredStock, us-gaap:FairValueInputsLevel1, us-gaap:FairValueMeasurementsRecurring


Equity
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value13511310781788674626663121
Percentage of EquitySecuritiesFvNi70.268.166.759.259.562.158.554.556.355.670.5
Percentage of Assets0.30.30.30.30.30.30.30.20.30.30.5
Percentage of Assets us-gaap:PreferredStock us-gaap:FairValueInputsLevel1 us-gaap:FairValueMeasurementsRecurring0.00.00.00.00.00.00.00.00.00.00.0

wal:CraInvestments, us-gaap:FairValueInputsLevel1, us-gaap:FairValueMeasurementsRecurring


Equity
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value2727272753525252515150
Percentage of EquitySecuritiesFvNi14.216.617.320.040.537.941.545.543.744.429.5
Percentage of Assets0.10.10.10.10.20.20.20.20.20.20.2
Percentage of Assets wal:CraInvestments us-gaap:FairValueInputsLevel1 us-gaap:FairValueMeasurementsRecurring0.00.00.00.00.00.00.00.00.00.00.0

wal:CraInvestments, us-gaap:FairValueInputsLevel2, us-gaap:FairValueMeasurementsRecurring


Equity
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value302525280.00.00.00.00.00.00.0
Percentage of EquitySecuritiesFvNi15.615.316.020.80.00.00.00.00.00.00.0
Percentage of Assets0.10.10.10.10.00.00.00.00.00.00.0
Percentage of Assets wal:CraInvestments us-gaap:FairValueInputsLevel2 us-gaap:FairValueMeasurementsRecurring0.00.00.00.00.00.00.00.00.00.00.0

us-gaap:EquitySecuritiesFvNi us-gaap:FairValueByAssetClass, us-gaap:FairValueByMeasurementFrequency

us-gaap:PreferredStock, us-gaap:FairValueMeasurementsRecurring


Equity
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value13511310781788674626663121
Percentage of EquitySecuritiesFvNi70.268.166.759.259.562.158.554.556.355.670.5
Percentage of Assets0.30.30.30.30.30.30.30.20.30.30.5
Percentage of Assets us-gaap:PreferredStock us-gaap:FairValueMeasurementsRecurring0.00.00.00.00.00.00.00.00.00.00.0

wal:CraInvestments, us-gaap:FairValueMeasurementsRecurring


Equity
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value5753535653525252515150
Percentage of EquitySecuritiesFvNi29.831.933.340.840.537.941.545.543.744.429.5
Percentage of Assets0.10.10.20.20.20.20.20.20.20.20.2
Percentage of Assets wal:CraInvestments us-gaap:FairValueMeasurementsRecurring0.00.00.00.00.00.00.00.00.00.00.0

us-gaap:EquitySecuritiesFvNi us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementBasis, us-gaap:FairValueByMeasurementFrequency

us-gaap:FairValueInputsLevel1, us-gaap:EstimateOfFairValueFairValueDisclosure, us-gaap:FairValueMeasurementsRecurring


Equity
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value164162141134109131138126114118115172
Percentage of EquitySecuritiesFvNi84.884.484.784.079.2100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.30.40.40.40.30.40.50.50.50.50.50.8
Percentage of Assets us-gaap:FairValueInputsLevel1 us-gaap:EstimateOfFairValueFairValueDisclosure us-gaap:FairValueMeasurementsRecurring0.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:FairValueInputsLevel2, us-gaap:EstimateOfFairValueFairValueDisclosure, us-gaap:FairValueMeasurementsRecurring


Equity
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value29302525280.00.00.00.00.00.00.0
Percentage of EquitySecuritiesFvNi15.215.615.316.020.80.00.00.00.00.00.00.0
Percentage of Assets0.10.10.10.10.10.00.00.00.00.00.00.0
Percentage of Assets us-gaap:FairValueInputsLevel2 us-gaap:EstimateOfFairValueFairValueDisclosure us-gaap:FairValueMeasurementsRecurring0.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:EquitySecuritiesFvNi us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency

us-gaap:FairValueInputsLevel1, us-gaap:FairValueMeasurementsRecurring


Equity
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value164162141134109131138126114118115172
Percentage of EquitySecuritiesFvNi84.884.484.784.079.2100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.30.40.40.40.30.40.50.50.50.50.50.8
Percentage of Assets us-gaap:FairValueInputsLevel1 us-gaap:FairValueMeasurementsRecurring0.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:FairValueInputsLevel2, us-gaap:FairValueMeasurementsRecurring


Equity
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value29302525280.00.00.00.00.00.00.0
Percentage of EquitySecuritiesFvNi15.215.615.316.020.80.00.00.00.00.00.00.0
Percentage of Assets0.10.10.10.10.10.00.00.00.00.00.00.0
Percentage of Assets us-gaap:FairValueInputsLevel2 us-gaap:FairValueMeasurementsRecurring0.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:EquitySecuritiesFvNi us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency, us-gaap:FinancialInstrument

us-gaap:FairValueInputsLevel1, us-gaap:FairValueMeasurementsRecurring, us-gaap:PreferredStock


Equity
Period End2021-06-302020-12-31
Value136113
Percentage of EquitySecuritiesFvNi70.668.1
Percentage of Assets0.30.3
Percentage of Assets us-gaap:FairValueInputsLevel1 us-gaap:FairValueMeasurementsRecurring us-gaap:PreferredStock0.00.0

us-gaap:FairValueInputsLevel1, us-gaap:FairValueMeasurementsRecurring, wal:CraInvestments


Equity
Period End2021-06-302020-12-31
Value2727
Percentage of EquitySecuritiesFvNi14.216.6
Percentage of Assets0.10.1
Percentage of Assets us-gaap:FairValueInputsLevel1 us-gaap:FairValueMeasurementsRecurring wal:CraInvestments0.00.0

us-gaap:FairValueInputsLevel2, us-gaap:FairValueMeasurementsRecurring, wal:CraInvestments


Equity
Period End2021-06-302020-12-31
Value2925
Percentage of EquitySecuritiesFvNi15.215.3
Percentage of Assets0.10.1
Percentage of Assets us-gaap:FairValueInputsLevel2 us-gaap:FairValueMeasurementsRecurring wal:CraInvestments0.00.0

us-gaap:EquitySecuritiesFvNi us-gaap:FairValueByMeasurementBasis, us-gaap:FairValueByMeasurementFrequency

us-gaap:CarryingReportedAmountFairValueDisclosure, us-gaap:FairValueMeasurementsRecurring


Equity
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value193192167160138131138126114118115172
Percentage of EquitySecuritiesFvNi100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.40.40.50.50.40.40.50.50.50.50.50.8
Percentage of Assets us-gaap:CarryingReportedAmountFairValueDisclosure us-gaap:FairValueMeasurementsRecurring0.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:EstimateOfFairValueFairValueDisclosure, us-gaap:FairValueMeasurementsRecurring


Equity
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value193192167160138131138126114118115172
Percentage of EquitySecuritiesFvNi100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.40.40.50.50.40.40.50.50.50.50.50.8
Percentage of Assets us-gaap:EstimateOfFairValueFairValueDisclosure us-gaap:FairValueMeasurementsRecurring0.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:EquitySecuritiesFvNi us-gaap:FairValueByMeasurementFrequency

us-gaap:FairValueMeasurementsRecurring


Equity
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value193192167160138131138126114118115172
Percentage of EquitySecuritiesFvNi100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.40.40.50.50.40.40.50.50.50.50.50.8
Percentage of Assets us-gaap:FairValueMeasurementsRecurring0.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:EquitySecuritiesFvNi us-gaap:FairValueByMeasurementFrequency, us-gaap:FinancialInstrument

us-gaap:FairValueMeasurementsRecurring, us-gaap:PreferredStock


Equity
Period End2021-06-302020-12-31
Value136113
Percentage of EquitySecuritiesFvNi70.668.1
Percentage of Assets0.30.3
Percentage of Assets us-gaap:FairValueMeasurementsRecurring us-gaap:PreferredStock0.00.0

us-gaap:FairValueMeasurementsRecurring, wal:CraInvestments


Equity
Period End2021-06-302020-12-31
Value5753
Percentage of EquitySecuritiesFvNi29.431.9
Percentage of Assets0.10.1
Percentage of Assets us-gaap:FairValueMeasurementsRecurring wal:CraInvestments0.00.0

us-gaap:EquitySecuritiesFvNi us-gaap:FinancialInstrument

us-gaap:PreferredStock


Equity
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value13613511310781788674626663121
Percentage of EquitySecuritiesFvNi70.670.268.166.759.259.562.158.554.556.355.670.5
Percentage of Assets0.30.30.30.30.30.30.30.30.20.30.30.5
Percentage of Assets us-gaap:PreferredStock0.00.00.00.00.00.00.00.00.00.00.00.0

wal:CraInvestments


Equity
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value575753535653525252515150
Percentage of EquitySecuritiesFvNi29.429.831.933.340.840.537.941.545.543.744.429.5
Percentage of Assets0.10.10.10.20.20.20.20.20.20.20.20.2
Percentage of Assets wal:CraInvestments0.00.00.00.00.00.00.00.00.00.00.00.0

Other Assets

us-gaap:OtherAssets

us-gaap:OtherAssets


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-31
Value128246939237733334228328727327131031222523924941138935033428630928127323921519319220518819017115814410811987653542303741
Percentage of OtherAssets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets2.61.11.11.11.01.21.11.11.11.11.31.41.11.21.22.12.11.91.91.71.91.81.91.71.61.71.82.01.92.01.81.81.71.31.61.20.90.50.60.50.60.7

us-gaap:OtherAssets us-gaap:ConsolidatedEntities

srt:ParentCompany


Other
Period End2020-12-312019-12-312018-12-312017-12-31
Value18222724
Percentage of OtherAssets4.67.98.89.8
Percentage of Assets0.00.10.10.1
Percentage of Assets srt:ParentCompany0.50.71.01.0

Time Deposit Maturities Year One

us-gaap:TimeDepositMaturitiesYearOne

us-gaap:TimeDepositMaturitiesYearOne


Time
Period End2020-12-31
Value1515
Percentage of TimeDepositMaturitiesYearOne100.0
Percentage of Assets4.2

Long Term Debt

us-gaap:LongTermDebt

us-gaap:LongTermDebt


Long
Period End2021-06-302013-12-312013-09-302013-06-302013-03-312012-12-31
Value5576434834927575
Percentage of LongTermDebt100.0100.0100.0100.0100.0100.0
Percentage of Assets1.10.73.94.13.41.0

Lessee Operating Lease Liability Payments Due Year Two

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearTwo

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearTwo


Lessee
Period End2020-12-31
Value11
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueYearTwo100.0
Percentage of Assets0.0

Lessee Operating Lease Liability Payments Due Year Three

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearThree

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearThree


Lessee
Period End2020-12-31
Value12
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueYearThree100.0
Percentage of Assets0.0

Lessee Operating Lease Liability Payments Due Year Four

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFour

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFour


Lessee
Period End2020-12-31
Value11
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueYearFour100.0
Percentage of Assets0.0

Lessee Operating Lease Liability Payments Due Year Five

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFive

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFive


Lessee
Period End2020-12-31
Value10
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueYearFive100.0
Percentage of Assets0.0

Lessee Operating Lease Liability Payments Due After Year Five

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive


Lessee
Period End2020-12-31
Value32
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive100.0
Percentage of Assets0.1

Operating Lease Liability

us-gaap:OperatingLeaseLiability

us-gaap:OperatingLeaseLiability


Operating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value1028479787678787976770.0
Percentage of OperatingLeaseLiability100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0
Percentage of Assets0.20.20.20.20.20.30.30.30.30.30.0

Lessee Operating Lease Liability Payments Due

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDue

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDue


Lessee
Period End2020-12-31
Value89
Percentage of LesseeOperatingLeaseLiabilityPaymentsDue100.0
Percentage of Assets0.2

Lessee Operating Lease Liability Undiscounted Excess Amount

us-gaap:LesseeOperatingLeaseLiabilityUndiscountedExcessAmount

us-gaap:LesseeOperatingLeaseLiabilityUndiscountedExcessAmount


Lessee
Period End2020-12-31
Value9900000.0
Percentage of LesseeOperatingLeaseLiabilityUndiscountedExcessAmount100.0
Percentage of Assets0.0

Stockholders Equity

us-gaap:StockholdersEquity

us-gaap:StockholdersEquity


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-312009-12-312008-12-31
Value4034371234133224310229993016292328512720261324882391229322292145205819691891185717961660159115831514105110001003957894855826799781759698672654636632615602575495
Percentage of StockholdersEquity100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets8.28.69.49.79.710.311.211.111.311.411.311.211.211.011.010.810.910.911.010.910.710.911.111.311.29.39.49.79.69.29.29.39.39.610.09.49.49.49.39.79.59.70.00.0

us-gaap:StockholdersEquity us-gaap:ConsolidatedEntities

srt:ParentCompany


Stockholders
Period End2020-12-312019-12-312018-12-312017-12-31
Value3413301626132229
Percentage of StockholdersEquity100.0100.0100.0100.0
Percentage of Assets9.411.211.311.0
Percentage of Assets srt:ParentCompany93.092.191.589.8

us-gaap:StockholdersEquity us-gaap:ConsolidationItems

us-gaap:CorporateNonSegment


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-31
Value507909842187169278509476485468422375349219330025824516614918013816512414912867110156170165
Percentage of StockholdersEquity12.624.524.75.85.59.316.916.317.017.216.215.114.695.613.512.011.98.47.99.77.710.07.89.48.56.411.015.617.818.5
Percentage of Assets1.02.12.30.60.51.01.91.81.92.01.81.71.610.61.51.31.30.90.91.10.81.10.91.11.00.61.01.51.71.7
Percentage of Assets us-gaap:CorporateNonSegment4.06.49.42.72.64.99.68.38.68.98.47.47.245.36.25.15.54.04.14.94.04.54.55.44.72.95.26.97.06.4

us-gaap:StockholdersEquity us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments

us-gaap:OperatingSegments, wal:CommercialSegment


Stockholders
Period End2021-06-302021-03-312020-12-312019-12-31
Value2178210019922060
Percentage of StockholdersEquity54.056.658.468.3
Percentage of Assets4.44.85.57.7
Percentage of Assets us-gaap:OperatingSegments wal:CommercialSegment10.410.09.712.0

us-gaap:OperatingSegments, wal:ConsumerRelatedSegment


Stockholders
Period End2021-06-302021-03-312020-12-312019-12-31
Value1348702579446
Percentage of StockholdersEquity33.418.917.014.8
Percentage of Assets2.71.61.61.7
Percentage of Assets us-gaap:OperatingSegments wal:ConsumerRelatedSegment8.88.68.410.2

us-gaap:OperatingSegments, wal:HFFLoanPortfolio


Stockholders
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-30
Value1671661581581521381301221191178.3108104100105107108104
Percentage of StockholdersEquity5.25.45.35.35.24.94.84.74.84.90.44.94.94.95.45.75.85.8
Percentage of Assets0.50.50.50.60.60.50.50.50.50.60.00.50.50.50.60.60.60.6
Percentage of Assets us-gaap:OperatingSegments wal:HFFLoanPortfolio8.08.28.18.28.18.48.38.38.38.20.68.18.28.18.28.38.28.2

us-gaap:OperatingSegments, wal:HOAServices


Stockholders
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-31
Value1049898848879777068675.9595757726546433934
Percentage of StockholdersEquity3.33.23.32.83.02.82.92.72.82.80.32.72.72.83.73.52.52.42.42.1
Percentage of Assets0.30.30.30.30.30.30.30.30.30.30.00.30.30.30.40.40.30.30.30.2
Percentage of Assets us-gaap:OperatingSegments wal:HOAServices37.135.442.535.738.737.437.333.834.036.23.636.836.838.355.456.644.044.741.739.0

us-gaap:OperatingSegments, wal:OtherNationalBusinessLines


Stockholders
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-31
Value6736245754944264143743402862489.3206207175162145139124110105
Percentage of StockholdersEquity20.920.119.216.414.614.513.813.011.510.40.49.29.78.58.27.77.56.96.66.6
Percentage of Assets2.02.02.01.81.61.61.61.51.31.20.01.01.00.90.90.80.80.70.70.7
Percentage of Assets us-gaap:OperatingSegments wal:OtherNationalBusinessLines7.98.17.98.17.88.28.28.28.28.20.38.18.38.18.48.28.38.38.28.3

us-gaap:OperatingSegments, wal:PublicandNonProfitFinance


Stockholders
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-31
Value1301351271311221321261231211251.312612612612211786898787
Percentage of StockholdersEquity4.04.44.34.44.24.64.64.74.95.20.15.75.96.16.26.24.65.05.35.5
Percentage of Assets0.40.40.40.50.50.50.50.50.50.60.00.60.60.70.70.70.50.50.60.6
Percentage of Assets us-gaap:OperatingSegments wal:PublicandNonProfitFinance7.88.07.78.07.78.18.18.08.08.00.18.08.08.28.08.16.06.06.06.0

us-gaap:OperatingSegments, wal:TechnologyandInnovation


Stockholders
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-31
Value39738437131730027725326825625711244234229225224218217205200
Percentage of StockholdersEquity12.312.412.410.510.39.79.310.310.310.80.510.910.911.111.511.811.712.112.412.6
Percentage of Assets1.21.21.31.21.11.11.11.21.21.20.11.21.21.21.21.31.31.31.41.4
Percentage of Assets us-gaap:OperatingSegments wal:TechnologyandInnovation16.516.917.419.120.120.421.520.421.019.50.920.120.119.820.019.820.720.521.422.6

us-gaap:StockholdersEquity us-gaap:ConsolidationItems, us-gaap:StatementGeographical

srt:ReportableGeographicalComponents, stpr:AZ


Stockholders
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302017-12-31
Value576545495453487484447441439396
Percentage of StockholdersEquity17.917.616.515.016.717.016.516.917.717.8
Percentage of Assets1.71.71.71.71.91.91.91.92.02.0
Percentage of Assets srt:ReportableGeographicalComponents stpr:AZ13.212.612.411.712.212.312.212.012.211.9

srt:ReportableGeographicalComponents, stpr:NV


Stockholders
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302017-12-31
Value343345305301298286283277270263
Percentage of StockholdersEquity10.711.110.210.010.210.010.410.610.911.8
Percentage of Assets1.01.11.01.11.11.11.21.21.21.3
Percentage of Assets srt:ReportableGeographicalComponents stpr:NV12.812.512.912.913.213.113.113.313.413.7

srt:ReportableGeographicalComponents, wal:NorthernCalifornia


Stockholders
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302017-12-31
Value361356327312306297298304308303
Percentage of StockholdersEquity11.211.510.910.410.510.411.011.612.413.6
Percentage of Assets1.11.11.11.21.21.21.31.31.41.5
Percentage of Assets srt:ReportableGeographicalComponents wal:NorthernCalifornia18.618.720.621.122.121.921.820.720.621.1

srt:ReportableGeographicalComponents, wal:SouthernCalifornia


Stockholders
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302017-12-31
Value281275260253265255260242242221
Percentage of StockholdersEquity8.78.98.78.49.19.09.69.39.79.9
Percentage of Assets0.80.90.90.91.01.01.11.11.11.1
Percentage of Assets srt:ReportableGeographicalComponents wal:SouthernCalifornia11.911.411.511.211.511.311.611.311.511.5

us-gaap:StockholdersEquity us-gaap:StatementEquityComponents

us-gaap:AccumulatedOtherComprehensiveIncome


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-312009-12-312008-12-31
Value641992787337253526-8.191-33.622-70.363-51.315-41.662-3.1458.1646.492.851-4.69536463322201523169.4838.472-11.131-21.546-14.504-10.757.2058.226124.2910.868-4.593-2.945-5.795-9.4225.405-28.491
Percentage of StockholdersEquity1.60.52.72.42.41.30.81.20.9-0.3-1.3-2.8-2.1-1.8-0.10.40.30.1-0.22.02.62.01.41.31.02.21.70.90.9-1.2-2.5-1.8-1.30.91.11.70.60.1-0.7-0.5-0.9-1.60.9-5.7
Percentage of Assets0.10.00.30.20.20.10.10.10.1-0.0-0.1-0.3-0.2-0.2-0.00.00.00.0-0.00.20.30.20.20.10.10.20.20.10.1-0.1-0.2-0.2-0.10.10.10.20.10.0-0.1-0.0-0.1-0.20.00.0
Percentage of Assets us-gaap:AccumulatedOtherComprehensiveIncome0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:AdditionalPaidInCapital


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-312009-12-312008-12-31
Value1687160813901383137613701374136813721390141714441438143114241418141314061400139413891328130612731268831828807803795797792789786784751748746743743741739684484
Percentage of StockholdersEquity41.843.340.742.944.445.745.646.848.151.154.258.160.262.463.966.168.671.574.075.177.480.082.180.483.879.182.880.583.988.993.295.998.7100.7103.3107.6111.3114.1116.8117.5120.4122.8118.897.7
Percentage of Assets3.43.73.84.24.34.75.15.25.45.86.16.56.76.97.07.17.57.88.18.28.38.79.29.19.47.47.87.88.08.28.68.99.29.610.310.110.410.810.911.411.411.90.00.0
Percentage of Assets us-gaap:AdditionalPaidInCapital0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:CommonStock


Stockholders
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-312009-12-312008-12-31
Value0.010.010.010.010.010.010.010.010.010.010.010.010.010.010.010.010.010.010.010.010.010.010.0090.0090.0090.0090.0090.0090.0090.0090.0090.0090.0080.0080.0080.0080.0080.0080.0080.0070.004
Percentage of StockholdersEquity0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of Assets us-gaap:CommonStock0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:RetainedEarnings


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-312009-12-312008-12-31
Value236621682001183317221661168015811513139912821166105595084875867559552245238532326221815912585454.807-30.379-61.358-92.357-120.196-153.86-174.471-206.232-221.338-233.974-243.512-248.833-252.424-258.8-241.724-85.424
Percentage of StockholdersEquity58.758.458.656.955.555.455.754.153.151.449.146.944.141.438.135.432.830.327.624.421.519.516.513.810.611.98.54.50.5-3.4-7.2-11.2-15.0-19.7-23.0-29.5-32.9-35.8-38.2-39.4-41.0-43.0-42.0-17.2
Percentage of Assets4.85.05.55.55.45.76.36.06.05.95.65.34.94.64.23.83.63.33.02.72.32.11.81.61.21.10.80.40.0-0.3-0.7-1.0-1.4-1.9-2.3-2.8-3.1-3.4-3.6-3.8-3.9-4.20.00.0
Percentage of Assets us-gaap:RetainedEarnings0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:TreasuryStock


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312013-12-31
Value8484-71.171-70.583-70.186-62.728-62.665-61.134-60.983-53.083-52.035-50.971-46.469-40.173-40.004-36.651-36.605-26.362-26.21-25.924-25.828-16.879-16.716-16.223-16.164-9.276-5.164
Percentage of StockholdersEquity2.12.3-2.12.2-2.3-2.3-2.1-2.1-2.1-2.2-2.0-2.1-2.1-2.0-1.8-1.9-1.8-1.9-1.4-1.4-1.4-1.6-1.1-1.1-1.1-1.5-0.9-0.6
Percentage of Assets0.20.2-0.20.2-0.2-0.2-0.2-0.2-0.2-0.3-0.2-0.2-0.2-0.2-0.2-0.2-0.2-0.2-0.2-0.2-0.2-0.2-0.1-0.1-0.1-0.1-0.1-0.1
Percentage of Assets us-gaap:TreasuryStock0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Common Stock Value

us-gaap:CommonStockValue

us-gaap:CommonStockValue


Common
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-31
Value1687160813900.010.010.010.010.010.010.010.010.010.010.010.010.010.010.010.010.010.010.010.010.010.010.0090.0090.0090.0090.0090.0090.0090.0090.0090.0090.0080.0080.0080.0080.0080.0080.008
Percentage of CommonStockValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets3.43.73.80.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Additional Paid In Capital

us-gaap:AdditionalPaidInCapital

us-gaap:AdditionalPaidInCapital


Additional
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-31
Value1383137613701374136813721390141714441438143114241418141314061400139413891328130612731268831828807803795797792789786784751748746743743741739
Percentage of AdditionalPaidInCapital100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets4.24.34.75.15.25.45.86.16.56.76.97.07.17.57.88.18.28.38.79.29.19.47.47.87.88.08.28.68.99.29.610.310.110.410.810.911.411.411.9

Common Stocks Including Additional Paid In Capital

us-gaap:CommonStocksIncludingAdditionalPaidInCapital

us-gaap:CommonStocksIncludingAdditionalPaidInCapital


Common
Period End2020-12-312019-12-31
Value13901374
Percentage of CommonStocksIncludingAdditionalPaidInCapital100.0100.0
Percentage of Assets3.85.1

Retained Earnings Accumulated Deficit

us-gaap:RetainedEarningsAccumulatedDeficit

us-gaap:RetainedEarningsAccumulatedDeficit


Retained
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-31
Value236621682001183317221661168015811513139912821166105595084875867559552245238532326221815912585454.807-30.379-61.358-92.357-120.196-153.86-174.471-206.232-221.338-233.974-243.512-248.833-252.424-258.8
Percentage of RetainedEarningsAccumulatedDeficit100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets4.85.05.55.55.45.76.36.06.05.95.65.34.94.64.23.83.63.33.02.72.32.11.81.61.21.10.80.40.0-0.3-0.7-1.0-1.4-1.9-2.3-2.8-3.1-3.4-3.6-3.8-3.9-4.2

Accumulated Other Comprehensive Income Loss Net Of Tax

us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax

us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax


Accumulated
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-31
Value641992787337253526-8.191-33.622-70.363-51.315-41.662-3.1458.1646.492.851-4.69536463322201523169.4838.472-11.131-21.546-14.504-10.757.2058.226124.2910.868-4.593-2.945-5.795-9.422
Percentage of AccumulatedOtherComprehensiveIncomeLossNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.10.00.30.20.20.10.10.10.1-0.0-0.1-0.3-0.2-0.2-0.00.00.00.0-0.00.20.30.20.20.10.10.20.20.10.1-0.1-0.2-0.2-0.10.10.10.20.10.0-0.1-0.0-0.1-0.2

us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax us-gaap:RetirementPlanType

us-gaap:SupplementalEmployeeRetirementPlanDefinedBenefit


Accumulated
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302015-12-312015-01-012014-12-31
Value0.30.3-0.30.316-0.313-0.31-0.020.3390.3570.3740.3920.4340.4460.4580.3850.2710.1570.120.1210.1080.1020.090.00.0
Percentage of AccumulatedOtherComprehensiveIncomeLossNetOfTax0.51.5-0.30.4-0.4-0.8-0.11.01.4-4.6-1.2-0.6-0.9-1.1-12.23.32.44.2-2.60.30.20.40.00.0
Percentage of Assets0.00.0-0.00.0-0.0-0.0-0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of Assets us-gaap:SupplementalEmployeeRetirementPlanDefinedBenefit0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax us-gaap:StatementEquityComponents

us-gaap:AccumulatedGainLossFinancialLiabilityFairValueOptionAttributableToParent


Accumulated
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302016-12-312015-12-31
Value0.20.54.57.181103.6296.7696.1717.505137.9269.9549.2066.3527.2796.6389.95612
Percentage of AccumulatedOtherComprehensiveIncomeLossNetOfTax1.00.55.79.727.214.519.023.4-91.6-40.0-11.3-19.4-22.1-202.089.2102.3-212.154.1
Percentage of Assets0.00.00.00.00.00.00.00.00.00.10.00.00.00.00.00.00.10.1
Percentage of Assets us-gaap:AccumulatedGainLossFinancialLiabilityFairValueOptionAttributableToParent0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:AccumulatedNetUnrealizedInvestmentGainLoss


Accumulated
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312011-12-312010-12-31
Value642092746627212819-16.214-47.591-78.867-61.859-51.47-10.0260.47-0.449-6.14-14.9162533209.993201423169.3398.328-11.275-21.69-14.504-10.787.2228.065-5.256-9.422
Percentage of AccumulatedOtherComprehensiveIncomeLossNetOfTax100.5100.599.894.790.773.785.680.074.7197.9141.5112.1120.5123.5318.85.8-6.9-215.4317.770.370.860.944.998.896.999.499.198.598.3101.3100.7100.0100.3100.298.0114.4100.0
Percentage of Assets0.10.00.30.20.20.10.10.10.1-0.1-0.2-0.4-0.3-0.2-0.00.0-0.0-0.0-0.10.20.20.10.10.10.10.20.20.10.1-0.1-0.2-0.2-0.10.10.1-0.1-0.2
Percentage of Assets us-gaap:AccumulatedNetUnrealizedInvestmentGainLoss0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Treasury Stock Value

us-gaap:TreasuryStockValue

us-gaap:TreasuryStockValue


Treasury
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-31
Value848471717070626261605352504640403636262625-25.828-16.879
Percentage of TreasuryStockValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.20.20.20.20.20.20.20.20.20.30.20.20.20.20.20.20.20.20.20.20.2-0.2-0.1

Stock Issued During Period Value New Issues

us-gaap:StockIssuedDuringPeriodValueNewIssues

us-gaap:StockIssuedDuringPeriodValueNewIssues


Stock
Period End2021-06-302021-03-312016-12-312016-09-302015-12-312015-09-302014-12-312014-09-302011-12-31
Value69-209.20.00.0-402.7430.011-0.0520.0
Percentage of StockIssuedDuringPeriodValueNewIssues100.0100.00.00.0100.00.0100.0100.00.0
Percentage of Assets0.00.00.00.00.00.00.00.00.0

us-gaap:StockIssuedDuringPeriodValueNewIssues us-gaap:StatementEquityComponents

us-gaap:AdditionalPaidInCapital


Stock
Period End2021-06-302021-03-312016-12-312016-09-302015-12-312015-09-302014-12-312014-09-30
Value692090.00.0-402.7420.011-0.052
Percentage of StockIssuedDuringPeriodValueNewIssues100.0-100.00.00.0100.00.0100.0100.0
Percentage of Assets0.00.00.00.00.00.00.00.0
Percentage of Assets us-gaap:AdditionalPaidInCapital0.00.00.00.00.00.00.00.0

Net Cash Provided By Used In Operating Activities

us-gaap:NetCashProvidedByUsedInOperatingActivities

us-gaap:NetCashProvidedByUsedInOperatingActivities


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-30
Value-2061.31002201661591231832041781511441481598811295878766994371756015615646203941375035225.4147363327423981-20.724
Percentage of NetCashProvidedByUsedInOperatingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of InterestAndDividendIncomeOperating-517.330.066.454.750.140.458.164.759.152.051.356.263.237.649.343.942.345.835.353.825.246.249.741.513.655.151.044.120.140.542.340.256.743.227.16.960.847.043.437.057.754.4113.1-29.3

Net Cash Provided By Used In Investing Activities

us-gaap:NetCashProvidedByUsedInInvestingActivities

us-gaap:NetCashProvidedByUsedInInvestingActivities


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-30
Value-1325.0-4058.9-1945.562-1533.703-1662.392-2395.843-947.859-1330.995-1092.694-351.485-1071.276-703.118-591.741-347.298-803.904-915.949-800.215-435.459-321.964-686.938-1725.815-155.516-389.258-881.679251-347.02-395.76-388.493-312.85-288.91-645.814-163.26-181.219-183.049-139.924-83.143-231.72-81.727-468.803-293.82454-104.171-511.856-140.76
Percentage of NetCashProvidedByUsedInInvestingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of InterestAndDividendIncomeOperating-332.5-1214.9-586.7-503.1-522.4-779.9-300.5-421.7-360.8-120.7-379.9-265.1-235.2-148.0-351.9-420.5-386.7-226.5-171.8-371.8-991.3-100.8-257.2-602.9215.7-312.7-359.3-368.1-306.8-292.7-661.8-176.2-203.0-220.3-165.9-105.7-297.7-105.5-610.1-396.373.8-144.8-707.2-199.1

Net Cash Provided By Used In Financing Activities

us-gaap:NetCashProvidedByUsedInFinancingActivities

us-gaap:NetCashProvidedByUsedInFinancingActivities


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-30
Value14356633297812672605225232793111954877247475002814578636727101842471347890213388-1.413613245221205409401252-42.6974981320618370284377421130216
Percentage of NetCashProvidedByUsedInFinancingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of InterestAndDividendIncomeOperating360.31985.5898.2415.7818.8733.4103.7295.0394.9167.3257.0282.0198.8120.0200.3396.6324.9369.398.3133.9773.9577.3141.0265.4-1.2553.3222.6209.7201.7414.7411.0272.0-47.8600.216.4262.8235.890.5370.251.0101.0294.042.6306.6

Cash And Cash Equivalents Period Increase Decrease

us-gaap:CashAndCashEquivalentsPeriodIncreaseDecrease

us-gaap:CashAndCashEquivalentsPeriodIncreaseDecrease


Cash
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-30
Value-1950.726741252-99.7281102-18.886-437.463-195.648282287-201.9921936722-233.58643-40.359362-71.592-340.16-334.734806-100.77-432.926265328-94.374-120.512-86.643160-203.519126-173.324351-103.292128-0.83324-150.973-228.592171146-399.20955
Percentage of CashAndCashEquivalentsPeriodIncreaseDecrease100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of InterestAndDividendIncomeOperating-489.5800.6377.9-32.7346.5-6.1-138.7-62.093.198.6-71.673.126.89.6-102.220.1-19.5188.6-38.2-184.1-192.3522.7-66.6-296.1228.0295.6-85.7-114.2-85.0162.5-208.6136.0-194.1423.1-122.5164.0-1.132.0-196.5-308.4232.5203.7-551.678.3

Increase Decrease In Other Operating Capital Net

us-gaap:IncreaseDecreaseInOtherOperatingCapitalNet

us-gaap:IncreaseDecreaseInOtherOperatingCapitalNet


Increase
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value-60.189-30.0862.521-3.63741-37.705-26.402-43.422-3.8170.056
Percentage of IncreaseDecreaseInOtherOperatingCapitalNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Net Cash Provided By Used In Operating Activities

us-gaap:NetCashProvidedByUsedInOperatingActivities

us-gaap:NetCashProvidedByUsedInOperatingActivities


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-30
Value-2061.31002201661591231832041781511441481598811295878766994371756015615646203941375035225.4147363327423981-20.724
Percentage of NetCashProvidedByUsedInOperatingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of InterestAndDividendIncomeOperating-517.330.066.454.750.140.458.164.759.152.051.356.263.237.649.343.942.345.835.353.825.246.249.741.513.655.151.044.120.140.542.340.256.743.227.16.960.847.043.437.057.754.4113.1-29.3

Net Income Loss

us-gaap:NetIncomeLoss

us-gaap:NetIncomeLoss


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
Value22319219313593831281271221201191111041008982797369676161585934404040353131283420321513117.101136.2295.153-10.8162.0091.227
Percentage of NetIncomeLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of InterestAndDividendIncomeOperating56.257.658.444.529.327.340.640.440.641.542.241.941.643.039.138.038.638.237.236.335.439.838.740.429.836.236.738.834.931.532.130.438.125.238.119.617.914.69.217.68.57.2-14.92.81.8

us-gaap:NetIncomeLoss us-gaap:ConsolidationItems

us-gaap:CorporateNonSegment


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-31
Value-21.0-29.7-44.071-35.284-26.801-20.543-10.444-5.5213.7958.623115.9492.5990.5465.9060.6641.4665.689-2.111-5.977-5.3454.4594.5734.861-7.0423.0423.7014.4011.1513.354
Percentage of NetIncomeLoss-9.4-15.4-22.8-26.0-28.7-24.5-8.2-4.33.17.19.25.42.50.56.60.81.87.8-3.0-8.9-8.77.37.88.2-20.37.69.210.83.210.8
Percentage of InterestAndDividendIncomeOperating-5.3-8.9-13.3-11.6-8.4-6.7-3.3-1.71.33.03.92.21.00.22.60.30.73.0-1.1-3.2-3.12.93.03.3-6.02.73.44.21.13.4
Percentage of InterestAndDividendIncomeOperating us-gaap:CorporateNonSegment0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

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

us-gaap:OperatingSegments, wal:CommercialSegment


Net
Period End2021-06-302021-03-312020-06-302020-03-31
Value1581687283
Percentage of NetIncomeLoss70.987.477.699.6
Percentage of InterestAndDividendIncomeOperating39.850.322.827.2
Percentage of InterestAndDividendIncomeOperating us-gaap:OperatingSegments wal:CommercialSegment0.00.00.00.0

us-gaap:OperatingSegments, wal:ConsumerRelatedSegment


Net
Period End2021-06-302021-03-312020-06-302020-03-31
Value86544720
Percentage of NetIncomeLoss38.528.150.824.9
Percentage of InterestAndDividendIncomeOperating21.616.214.96.8
Percentage of InterestAndDividendIncomeOperating us-gaap:OperatingSegments wal:ConsumerRelatedSegment0.00.00.00.0

us-gaap:OperatingSegments, wal:HFFLoanPortfolio


Net
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-30
Value5.96-6.4654.1698.476.6938.0827.5057.9027.9468.5678.2826.8067.7035.3416.6216.4786.3525.944
Percentage of NetIncomeLoss4.4-6.95.06.65.36.66.26.67.28.28.27.69.36.79.09.39.59.6
Percentage of InterestAndDividendIncomeOperating2.0-2.01.42.72.12.72.62.83.03.43.53.03.52.63.43.53.43.4
Percentage of InterestAndDividendIncomeOperating us-gaap:OperatingSegments wal:HFFLoanPortfolio0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:OperatingSegments, wal:HOAServices


Net
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-31
Value9.671128.8489.8869.4169.5879.4747.3887.5376.2045.8984.5144.2694.0623.5093.1963.3142.6181.9491.181.2311.4650.876
Percentage of NetIncomeLoss7.113.310.57.77.47.87.86.26.85.95.85.15.25.14.84.64.94.23.22.02.14.22.2
Percentage of InterestAndDividendIncomeOperating3.23.92.93.13.03.23.32.62.82.52.52.02.02.01.81.71.81.51.30.80.81.30.8
Percentage of InterestAndDividendIncomeOperating us-gaap:OperatingSegments wal:HOAServices0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:OperatingSegments, wal:OtherNationalBusinessLines


Net
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-31
Value303413191713107.7417.9969.0539.3088.9174.7575.5924.1356.4384.6534.6634.7484.6596.5525.7055.651
Percentage of NetIncomeLoss22.636.815.715.113.411.18.96.57.28.69.210.05.77.05.69.26.97.67.78.011.116.414.1
Percentage of InterestAndDividendIncomeOperating10.110.84.36.15.44.53.72.73.03.64.03.92.22.72.23.42.52.73.13.14.54.95.1
Percentage of InterestAndDividendIncomeOperating us-gaap:OperatingSegments wal:OtherNationalBusinessLines0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:OperatingSegments, wal:PublicandNonProfitFinance


Net
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-31
Value0.227-0.5630.6390.7211.341.1041.1991.9291.741.341.373.0984.2943.3252.3362.092.1071.8312.2262.3631.991.5511.811
Percentage of NetIncomeLoss0.2-0.60.80.61.10.91.01.61.61.31.43.55.24.23.23.03.13.03.64.03.44.54.5
Percentage of InterestAndDividendIncomeOperating0.1-0.20.20.20.40.40.40.70.70.50.61.42.01.61.21.11.11.11.41.61.41.31.6
Percentage of InterestAndDividendIncomeOperating us-gaap:OperatingSegments wal:PublicandNonProfitFinance0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:OperatingSegments, wal:TechnologyandInnovation


Net
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-31
Value37171021201316171412118.478.4548.3166.8537.17.3346.8297.6287.5146.5670.00.0
Percentage of NetIncomeLoss27.619.212.116.616.011.313.915.012.911.811.09.510.210.49.310.210.911.112.412.811.10.00.0
Percentage of InterestAndDividendIncomeOperating12.35.63.36.76.44.65.86.35.44.94.73.73.94.03.63.84.03.94.95.04.50.00.0
Percentage of InterestAndDividendIncomeOperating us-gaap:OperatingSegments wal:TechnologyandInnovation0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:NetIncomeLoss us-gaap:ConsolidationItems, us-gaap:StatementGeographical

srt:ReportableGeographicalComponents, stpr:AZ


Net
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value43262731322725242627241921
Percentage of NetIncomeLoss31.928.132.924.325.522.821.320.624.326.724.522.125.9
Percentage of InterestAndDividendIncomeOperating14.28.29.09.910.39.28.88.710.211.110.58.69.9
Percentage of InterestAndDividendIncomeOperating srt:ReportableGeographicalComponents stpr:AZ0.00.00.00.00.00.00.00.00.00.00.00.00.0

srt:ReportableGeographicalComponents, stpr:NV


Net
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value19202123222220201917211516
Percentage of NetIncomeLoss14.421.525.618.017.418.316.616.817.116.821.617.120.4
Percentage of InterestAndDividendIncomeOperating6.46.37.07.37.07.46.97.17.27.09.36.77.7
Percentage of InterestAndDividendIncomeOperating srt:ReportableGeographicalComponents stpr:NV0.00.00.00.00.00.00.00.00.00.00.00.00.0

srt:ReportableGeographicalComponents, wal:NorthernCalifornia


Net
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value11107.469109.2339.9088.9879.3258.9628.6257.6537.9445.37
Percentage of NetIncomeLoss8.511.18.97.97.28.17.47.88.18.27.68.96.5
Percentage of InterestAndDividendIncomeOperating3.83.22.43.22.93.33.13.33.43.43.33.52.5
Percentage of InterestAndDividendIncomeOperating srt:ReportableGeographicalComponents wal:NorthernCalifornia0.00.00.00.00.00.00.00.00.00.00.00.00.0

srt:ReportableGeographicalComponents, wal:SouthernCalifornia


Net
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value125.8621014141211111010108.6848.983
Percentage of NetIncomeLoss9.36.312.911.411.110.29.69.59.59.910.29.710.8
Percentage of InterestAndDividendIncomeOperating4.21.83.54.64.54.14.04.04.04.14.43.84.1
Percentage of InterestAndDividendIncomeOperating srt:ReportableGeographicalComponents wal:SouthernCalifornia0.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:NetIncomeLoss us-gaap:StatementEquityComponents

us-gaap:RetainedEarnings


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-06-302012-03-312011-12-312011-09-30
Value2231921931359383128127122120119111104100898279736967616160593440404035313128342013117.10113
Percentage of NetIncomeLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0102.9100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of InterestAndDividendIncomeOperating56.257.658.444.529.327.340.640.440.641.542.241.941.643.039.138.038.638.237.236.335.439.839.840.429.836.236.738.834.931.532.130.438.125.217.914.69.217.6
Percentage of InterestAndDividendIncomeOperating us-gaap:RetainedEarnings0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Share Based Compensation

us-gaap:ShareBasedCompensation

us-gaap:ShareBasedCompensation


Share
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-30
Value9.58.07.146.6058.0616.8946.4556.067.2516.4726.235.6987.0786.7055.6455.5156.0526.3425.2994.7224.9235.3944.6425.383.7794.1294.8133.1544.1660.3323.3351.5731.820.9711.5930.8982.0161.8111.171.4440.6531.0051.7131.929
Percentage of ShareBasedCompensation100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Net Cash Provided By Used In Investing Activities

us-gaap:NetCashProvidedByUsedInInvestingActivities

us-gaap:NetCashProvidedByUsedInInvestingActivities


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-30
Value-1325.0-4058.9-1945.562-1533.703-1662.392-2395.843-947.859-1330.995-1092.694-351.485-1071.276-703.118-591.741-347.298-803.904-915.949-800.215-435.459-321.964-686.938-1725.815-155.516-389.258-881.679251-347.02-395.76-388.493-312.85-288.91-645.814-163.26-181.219-183.049-139.924-83.143-231.72-81.727-468.803-293.82454-104.171-511.856-140.76
Percentage of NetCashProvidedByUsedInInvestingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of InterestAndDividendIncomeOperating-332.5-1214.9-586.7-503.1-522.4-779.9-300.5-421.7-360.8-120.7-379.9-265.1-235.2-148.0-351.9-420.5-386.7-226.5-171.8-371.8-991.3-100.8-257.2-602.9215.7-312.7-359.3-368.1-306.8-292.7-661.8-176.2-203.0-220.3-165.9-105.7-297.7-105.5-610.1-396.373.8-144.8-707.2-199.1

Net Cash Provided By Used In Financing Activities

us-gaap:NetCashProvidedByUsedInFinancingActivities

us-gaap:NetCashProvidedByUsedInFinancingActivities


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-30
Value14356633297812672605225232793111954877247475002814578636727101842471347890213388-1.413613245221205409401252-42.6974981320618370284377421130216
Percentage of NetCashProvidedByUsedInFinancingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of InterestAndDividendIncomeOperating360.31985.5898.2415.7818.8733.4103.7295.0394.9167.3257.0282.0198.8120.0200.3396.6324.9369.398.3133.9773.9577.3141.0265.4-1.2553.3222.6209.7201.7414.7411.0272.0-47.8600.216.4262.8235.890.5370.251.0101.0294.042.6306.6

Payments Of Dividends Common Stock

us-gaap:PaymentsOfDividendsCommonStock

us-gaap:PaymentsOfDividendsCommonStock


Payments
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value25252525252525250.00.0
Percentage of PaymentsOfDividendsCommonStock100.0100.0100.0100.0100.0100.0100.0100.00.00.0

Payments For Repurchase Of Common Stock

us-gaap:PaymentsForRepurchaseOfCommonStock

us-gaap:PaymentsForRepurchaseOfCommonStock


Payments
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value-0.0690.09.148624.56433337350.00.00.0
Percentage of PaymentsForRepurchaseOfCommonStock100.00.0100.0100.0100.0100.0100.0100.0100.00.00.00.0

Debt Instrument Interest Rate Stated Percentage

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

us-gaap:DebtInstrumentInterestRateStatedPercentage

wal:SubordinatedDebenturesMaturingJuly2025, us-gaap:SubordinatedDebt


Debt
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312015-06-29
Value5.05.00.050.050.050.050.0500
Percentage of DebtInstrumentInterestRateStatedPercentage100.0100.0100.0100.0100.0100.0100.00.00.0
Percentage of LongTermDebtAndCapitalLeaseObligations0.00.00.00.00.00.00.00.00.0
Percentage of LongTermDebtAndCapitalLeaseObligations wal:SubordinatedDebenturesMaturingJuly2025 us-gaap:SubordinatedDebt0.00.00.00.00.00.00.00.00.0

wal:SubordinatedDebenturesMaturingJune2030Member, us-gaap:SubordinatedDebt


Debt
Period End2021-03-312020-09-302020-06-30
Value5.255.250.0525
Percentage of DebtInstrumentInterestRateStatedPercentage0.0105.0105.0
Percentage of LongTermDebtAndCapitalLeaseObligations0.00.00.0
Percentage of LongTermDebtAndCapitalLeaseObligations wal:SubordinatedDebenturesMaturingJune2030Member us-gaap:SubordinatedDebt0.00.00.0

Effective Income Tax Rate Continuing Operations

us-gaap:EffectiveIncomeTaxRateContinuingOperations

us-gaap:EffectiveIncomeTaxRateContinuingOperations


Effective
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-30
Value19.017.90.5718.50.17360.1806-0.00130.1830.16760.17450.00130.06320.19480.1710.00070.29640.28550.2503-0.00240.30320.29940.24140.0020.24490.23390.260.00530.24040.2290.2508-0.0360.2480.1660.2719-0.0430.3010.271
Percentage of EffectiveIncomeTaxRateContinuingOperations100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Deferred Tax Assets Net

us-gaap:DeferredTaxAssetsNet

us-gaap:DeferredTaxAssetsNet


Deferred
Period End2020-12-312019-12-312018-12-312017-12-312015-12-312014-12-312013-12-312012-12-312011-12-31
Value1659792124117951037885
Percentage of DeferredTaxAssetsNet100.0100.0100.0100.0100.0100.0100.0100.0100.0

Unrecognized Tax Benefits

us-gaap:UnrecognizedTaxBenefits

us-gaap:UnrecognizedTaxBenefits


Unrecognized
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-31
Value3400000.01739000.0484000.01038000.01038000.01038000.00
Percentage of UnrecognizedTaxBenefits100.0100.0100.0100.0100.0100.00.0

us-gaap:AccretionAmortizationOfDiscountsAndPremiumsInvestments

us-gaap:AccretionAmortizationOfDiscountsAndPremiumsInvestments


Accretion
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-30
Value-10700000.0-10700000.0-9185000.0-6886000.0-6520000.0-5609000.0-6064000.0-4603000.0-3424000.0-3004000.0-3452000.0-2722000.0-4153000.0-3920000.0-2012000.0-4500000.0-6419000.0-4007000.0-4131000.0-3430000.0-3463000.0-2766000.0-2960000.0-2682000.0-2103000.0-2030000.0-1998000.0-1989000.0-1998000.0-2050000.0-2069000.0-2484000.0-2597000.0-2577000.0-2772000.0-2656000.0-2715000.0-2656000.0-2646000.0-1521000.0-1476000.0-2696000.0-1827000.0-1721000.0
Percentage of AccretionAmortizationOfDiscountsAndPremiumsInvestments100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AmortizationMethodQualifiedAffordableHousingProjectInvestmentsAmortization

us-gaap:AmortizationMethodQualifiedAffordableHousingProjectInvestmentsAmortization


Amortization
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302016-12-312016-09-30
Value8.2151414127.4427.951310109.3989.09.48.15.96.83.65.5
Percentage of AmortizationMethodQualifiedAffordableHousingProjectInvestmentsAmortization100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AmortizationOfDeferredLoanOriginationFeesNet

us-gaap:AmortizationOfDeferredLoanOriginationFeesNet


Amortization
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-30
Value1919171.524284.11010
Percentage of AmortizationOfDeferredLoanOriginationFeesNet100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AncillaryFeeIncomeGeneratedByServicingFinancialAssetsAmount us-gaap:FinancialInstrument

us-gaap:AncillaryFeeIncomeGeneratedByServicingFinancialAssetsAmount

wal:MortgageServicingAsset


Ancillary
Period End2021-06-30
Value1800000.0
Percentage of AncillaryFeeIncomeGeneratedByServicingFinancialAssetsAmount100.0

us-gaap:AvailableForSaleSecuritiesGrossRealizedGains

us-gaap:AvailableForSaleSecuritiesGrossRealizedGains


Available
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value-5000.00200000.0205000.003152000.0008074000.00
Percentage of AvailableForSaleSecuritiesGrossRealizedGains100.00.0100.0100.00.0100.00.00.0100.00.0

us-gaap:AvailableForSaleSecuritiesGrossRealizedLosses

us-gaap:AvailableForSaleSecuritiesGrossRealizedLosses


Available
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value25000.0350000.0-42000.0-133000.0000014970000.0-7232000.0
Percentage of AvailableForSaleSecuritiesGrossRealizedLosses100.0100.0100.0100.00.00.00.00.0100.0100.0

us-gaap:BankOwnedLifeInsuranceIncome

us-gaap:BankOwnedLifeInsuranceIncome


Bank
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
Value0.91.01.2231.3456.670.9620.9630.9790.9780.9810.9830.8681.1670.9280.9650.9750.9730.9480.9040.8991.0290.931.1660.9840.7720.9771.4641.1360.9590.9490.9051.8321.0361.0361.081.1161.121.1231.1771.1891.8221.1841.0280.7730.78
Percentage of BankOwnedLifeInsuranceIncome100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:BusinessAcquisitionsProFormaNetIncomeLoss

us-gaap:BusinessAcquisitionsProFormaNetIncomeLoss


Business
Period End2021-06-302020-06-302013-12-312013-09-302013-06-302012-12-312012-09-302012-06-30
Value243253292522231312
Percentage of BusinessAcquisitionsProFormaNetIncomeLoss100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:BusinessCombinationAcquisitionRelatedCosts

us-gaap:BusinessCombinationAcquisitionRelatedCosts


Business
Period End2021-06-302021-03-31
Value3000000.0400000.0
Percentage of BusinessCombinationAcquisitionRelatedCosts100.0100.0

us-gaap:BusinessDevelopment

us-gaap:BusinessDevelopment


Business
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value1500000.0800000.01438000.0950000.0831000.02281000.02071000.01443000.01444000.02085000.01437000.01381000.01414000.01728000.01179000.01439000.01447000.02063000.0
Percentage of BusinessDevelopment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:CashFlowsBetweenTransfereeAndTransferorServicingFees us-gaap:FinancialInstrument

us-gaap:CashFlowsBetweenTransfereeAndTransferorServicingFees

wal:MortgageServicingAsset


Cash
Period End2021-06-30
Value67
Percentage of CashFlowsBetweenTransfereeAndTransferorServicingFees100.0

us-gaap:ChangeInUnrealizedGainLossOnFairValueHedgingInstruments1

us-gaap:ChangeInUnrealizedGainLossOnFairValueHedgingInstruments1


Change
Period End2021-06-30
Value45
Percentage of ChangeInUnrealizedGainLossOnFairValueHedgingInstruments1100.0

us-gaap:ChangeInUnrealizedGainLossOnFairValueHedgingInstruments1 us-gaap:IncomeStatementLocation

us-gaap:InterestExpense


Change
Period End2021-06-302021-03-312020-06-302020-03-31
Value3.7-5.71.64.8
Percentage of ChangeInUnrealizedGainLossOnFairValueHedgingInstruments18.10.00.00.0

us-gaap:InterestIncome


Change
Period End2021-06-302021-03-312020-06-302020-03-31
Value-10.838-6.2-41.8
Percentage of ChangeInUnrealizedGainLossOnFairValueHedgingInstruments1-23.60.00.00.0

us-gaap:ChangeInUnrealizedGainLossOnHedgedItemInFairValueHedge1 us-gaap:IncomeStatementLocation

us-gaap:ChangeInUnrealizedGainLossOnHedgedItemInFairValueHedge1

us-gaap:InterestExpense


Change
Period End2021-06-302021-03-312020-06-302020-03-31
Value-3.75.7-1.6-4.8
Percentage of ChangeInUnrealizedGainLossOnHedgedItemInFairValueHedge1100.0100.0100.0100.0

us-gaap:InterestIncome


Change
Period End2021-06-302021-03-312020-06-302020-03-31
Value10-38.76.241
Percentage of ChangeInUnrealizedGainLossOnHedgedItemInFairValueHedge1-291.9-678.9-387.5-870.8

us-gaap:CommonStockDividendsPerShareDeclared

us-gaap:CommonStockDividendsPerShareDeclared


Common
Period End2021-06-302020-09-302020-06-302019-09-302019-06-302016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312011-12-312011-09-302010-09-30
Value0.250.250.250.2500000000000000000000
Percentage of CommonStockDividendsPerShareDeclared100.0100.0100.0100.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:ConcentrationRiskPercentage1 us-gaap:ConcentrationRiskByBenchmark, us-gaap:ConcentrationRiskByType, us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable

us-gaap:ConcentrationRiskPercentage1

us-gaap:LoansReceivable, us-gaap:CreditConcentrationRisk, us-gaap:CommercialRealEstatePortfolioSegment


Concentration
Period End2021-03-312020-03-312019-03-312018-03-312017-09-302017-06-302017-03-312016-12-312014-03-312013-03-31
Value37.00.420.490.520.510.520.530.530.560.58
Percentage of ConcentrationRiskPercentage1100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ContractWithCustomerLiabilityRevenueRecognized

us-gaap:ContractWithCustomerLiabilityRevenueRecognized


Contract
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value9.29.27.8577.6176.3818.0456.7978.557.8787.8318.5167.868.4098.2696.9647.3266.7146.397
Percentage of ContractWithCustomerLiabilityRevenueRecognized100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ContractWithCustomerLiabilityRevenueRecognized us-gaap:ConsolidationItems

us-gaap:CorporateNonSegment


Contract
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value0.0010.0010.0120.0040.003-0.010.0140.01-0.0120.0160.0060.004-0.0020.0080.002
Percentage of ContractWithCustomerLiabilityRevenueRecognized0.00.00.10.10.0-0.10.20.1-0.20.20.10.1-0.00.10.0

us-gaap:ContractWithCustomerLiabilityRevenueRecognized us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments

us-gaap:OperatingSegments, wal:CommercialSegment


Contract
Period End2021-06-302021-03-312020-06-302020-03-31
Value8.78.76.17.6
Percentage of ContractWithCustomerLiabilityRevenueRecognized94.694.695.694.5

us-gaap:OperatingSegments, wal:ConsumerRelatedSegment


Contract
Period End2021-06-302021-03-312020-06-302020-03-31
Value0.50.50.30.4
Percentage of ContractWithCustomerLiabilityRevenueRecognized5.45.44.75.0

us-gaap:OperatingSegments, wal:HOAServices


Contract
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value0.1280.0860.1240.0920.0860.090.0960.070.2150.1790.1490.140.1360.1390.141
Percentage of ContractWithCustomerLiabilityRevenueRecognized1.71.31.51.41.01.11.20.82.72.11.82.01.92.12.2

us-gaap:OperatingSegments, wal:OtherNationalBusinessLines


Contract
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value0.0380.0430.0510.0630.0360.0360.0390.00.00.00.00.0010.00.0280.085
Percentage of ContractWithCustomerLiabilityRevenueRecognized0.50.70.60.90.40.50.50.00.00.00.00.00.00.41.3

us-gaap:OperatingSegments, wal:TechnologyandInnovation


Contract
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value1.0011.0930.8931.3331.4180.8951.1481.8941.3181.6341.5940.9931.3610.9010.975
Percentage of ContractWithCustomerLiabilityRevenueRecognized13.117.111.119.616.611.414.722.216.819.419.314.318.613.415.2

us-gaap:ContractWithCustomerLiabilityRevenueRecognized us-gaap:ConsolidationItems, us-gaap:StatementGeographical

srt:ReportableGeographicalComponents, stpr:AZ


Contract
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value1.6221.3271.5881.2891.6851.5481.4251.4281.231.3221.2350.9591.058
Percentage of ContractWithCustomerLiabilityRevenueRecognized21.320.819.719.019.719.618.216.815.615.714.913.814.4

srt:ReportableGeographicalComponents, stpr:NV


Contract
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value2.1381.7692.4482.1692.492.3832.3142.4332.3822.4992.412.1982.194
Percentage of ContractWithCustomerLiabilityRevenueRecognized28.127.730.431.929.130.229.528.630.329.729.131.629.9

srt:ReportableGeographicalComponents, wal:NorthernCalifornia


Contract
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value1.6341.3071.8791.0671.8292.0271.8871.8811.9151.91.9711.9141.781
Percentage of ContractWithCustomerLiabilityRevenueRecognized21.520.523.415.721.425.724.122.124.422.623.827.524.3

srt:ReportableGeographicalComponents, wal:SouthernCalifornia


Contract
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value1.0550.7551.050.781.0030.9090.9080.80.8120.8590.9040.7550.798
Percentage of ContractWithCustomerLiabilityRevenueRecognized13.911.813.111.511.711.511.69.410.310.210.910.810.9

us-gaap:ContractuallySpecifiedServicingFeesAmount us-gaap:FinancialInstrument

us-gaap:ContractuallySpecifiedServicingFeesAmount

wal:MortgageServicingAsset


Contractually
Period End2021-06-30
Value59
Percentage of ContractuallySpecifiedServicingFeesAmount100.0

us-gaap:ContractuallySpecifiedServicingFeesLateFeesAndAncillaryFeesEarnedInExchangeForServicingFinancialAssets

us-gaap:ContractuallySpecifiedServicingFeesLateFeesAndAncillaryFeesEarnedInExchangeForServicingFinancialAssets


Contractually
Period End2021-06-30
Value61
Percentage of ContractuallySpecifiedServicingFeesLateFeesAndAncillaryFeesEarnedInExchangeForServicingFinancialAssets100.0

us-gaap:ContractuallySpecifiedServicingFeesLateFeesAndAncillaryFeesEarnedInExchangeForServicingFinancialAssets us-gaap:FinancialInstrument

wal:MortgageServicingAsset


Contractually
Period End2021-06-30
Value61
Percentage of ContractuallySpecifiedServicingFeesLateFeesAndAncillaryFeesEarnedInExchangeForServicingFinancialAssets100.0

us-gaap:DebtAndEquitySecuritiesRealizedGainLoss

us-gaap:DebtAndEquitySecuritiesRealizedGainLoss


Debt
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value-30000.00158000.072000.003152000.000-424000.0
Percentage of DebtAndEquitySecuritiesRealizedGainLoss100.00.0100.0100.00.0100.00.00.0100.0

us-gaap:DebtInstrumentBasisSpreadOnVariableRate1 us-gaap:FairValueByLiabilityClass

us-gaap:DebtInstrumentBasisSpreadOnVariableRate1

us-gaap:JuniorSubordinatedDebt


Debt
Period End2021-03-312020-03-312019-03-312018-03-312017-06-302017-03-312016-03-312015-03-312014-03-31
Value2.590.04740.04050.04340.03910.04390.053596.00.0546
Percentage of DebtInstrumentBasisSpreadOnVariableRate1100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DebtSecuritiesAvailableForSaleRealizedGainLoss

us-gaap:DebtSecuritiesAvailableForSaleRealizedGainLoss


Debt
Period End2020-12-312020-09-302020-06-302019-12-312019-09-302019-06-30
Value-30000.00158000.0-52000.03152000.00
Percentage of DebtSecuritiesAvailableForSaleRealizedGainLoss100.00.0100.0100.0100.00.0

us-gaap:DebtSecuritiesHeldToMaturityCreditLossExpenseReversal

us-gaap:DebtSecuritiesHeldToMaturityCreditLossExpenseReversal


Debt
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-31
Value3200000.02400000.0782000.0-1685000.04668000.0300000.0
Percentage of DebtSecuritiesHeldToMaturityCreditLossExpenseReversal100.0100.0100.0100.0100.0100.0

us-gaap:DeferredIncomeTaxesAndTaxCredits

us-gaap:DeferredIncomeTaxesAndTaxCredits


Deferred
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-30
Value5.25.112-14.217-18.372-4.825-10.8862.641.7191.398-0.6021.836-8.571-9.372852.854-1.8842.4013.453-0.9820.2864.8877.376-1.777-2.5530.2080.731-1.248-4.969-1.696-14.16422-18.936-1.7545.5977.3445.2943.4871.4247.193.7172.972-10.7751.184
Percentage of DeferredIncomeTaxesAndTaxCredits100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DepreciationAndAmortization

us-gaap:DepreciationAndAmortization


Depreciation
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-30
Value9.06.05.7787.5964.5314.9954.9454.7144.5894.2093.8593.6453.4083.4073.4373.5673.1783.2113.2223.1363.532.6062.4272.0961.9791.9641.8381.1081.1762.0442.5822.2262.2762.1532.2422.3831.7083.2282.542.692.6882.7053.4313.511
Percentage of DepreciationAndAmortization100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsGain

us-gaap:DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsGain


Derivative
Period End2021-06-30
Value9400000.0
Percentage of DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsGain100.0

us-gaap:DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsGainLossNet

us-gaap:DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsGainLossNet


Derivative
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value1500000.02200000.01358000.01755000.01159000.01328000.01423000.01321000.01148000.01095000.01285000.01092000.01181000.01202000.0
Percentage of DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsGainLossNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsLoss us-gaap:FinancialInstrument

us-gaap:DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsLoss

wal:MortgageServicingAsset


Derivative
Period End2021-06-30
Value46
Percentage of DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsLoss100.0

us-gaap:DividendIncomeSecuritiesOperatingTaxable

us-gaap:DividendIncomeSecuritiesOperatingTaxable


Dividend
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302012-12-312012-09-30
Value2.92.95.3951.3971.2931.6151.6811.2891.531.6332.4091.8312.1971.4781.5862.0051.9212.2292.7852.2091.9942.0136.2891.481.2731.2751.2681.2720.9681.0990.4540.2860.3080.305
Percentage of DividendIncomeSecuritiesOperatingTaxable100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DividendsCommonStockCash

us-gaap:DividendsCommonStockCash


Dividends
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-30
Value25252525-25.213-25.60677-25.684
Percentage of DividendsCommonStockCash100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DividendsCommonStockCash us-gaap:StatementEquityComponents

us-gaap:RetainedEarnings


Dividends
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-30
Value25252525252577-25.684
Percentage of DividendsCommonStockCash100.0100.0100.0100.0-100.0-100.0100.0100.0

us-gaap:EarlyRepaymentOfSubordinatedDebt us-gaap:SubsequentEventType

us-gaap:EarlyRepaymentOfSubordinatedDebt

us-gaap:SubsequentEvent


Early
Period End2020-10-15
Value75
Percentage of EarlyRepaymentOfSubordinatedDebt100.0

us-gaap:EquitySecuritiesFvNiUnrealizedGainLoss

us-gaap:EquitySecuritiesFvNiUnrealizedGainLoss


Equity
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value3200000.0-1500000.04786000.05882000.04432000.0-11300000.0491000.0222000.01572000.02834000.0-640000.0-1212000.0-685000.0-1074000.000
Percentage of EquitySecuritiesFvNiUnrealizedGainLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.0

us-gaap:ExpenseRelatedToDistributionOrServicingAndUnderwritingFees

us-gaap:ExpenseRelatedToDistributionOrServicingAndUnderwritingFees


Expense
Period End2021-06-30
Value22
Percentage of ExpenseRelatedToDistributionOrServicingAndUnderwritingFees100.0

us-gaap:ExpenseRelatedToDistributionOrServicingAndUnderwritingFees us-gaap:FinancialInstrument

wal:MortgageServicingAsset


Expense
Period End2021-06-30
Value20
Percentage of ExpenseRelatedToDistributionOrServicingAndUnderwritingFees93.3

us-gaap:FairValueLiabilitiesMeasuredOnRecurringBasisChangeInUnrealizedGainLoss us-gaap:FairValueByLiabilityClass

us-gaap:FairValueLiabilitiesMeasuredOnRecurringBasisChangeInUnrealizedGainLoss

us-gaap:JuniorSubordinatedDebt


Fair
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302014-09-302014-06-302014-03-312013-09-302013-06-302013-03-31
Value-200000.0-400000.0-5356000.0-3555000.0-3984000.08695000.0-4164000.0794000.0-1769000.0-7862000.07303000.0-2689000.0992000.01944000.0-1497000.01035000.0-3376000.0-1986000.0-1096000.0-4604000.0918000.0125000.0-978000.0478000.0-3238000.0-469000.0
Percentage of FairValueLiabilitiesMeasuredOnRecurringBasisChangeInUnrealizedGainLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityGainLossIncludedInOtherComprehensiveIncome us-gaap:FairValueByLiabilityClass

us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityGainLossIncludedInOtherComprehensiveIncome

us-gaap:JuniorSubordinatedDebt


Fair
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-30
Value-200000.0-400000.0-5356000.0-3555000.0-3984000.08695000.0-4164000.0794000.0-1769000.0-7862000.07364000.0-2028000.0748000.01466000.0641000.0-2089000.0-1229000.0-2825000.0
Percentage of FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityGainLossIncludedInOtherComprehensiveIncome100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:FeesAndCommissionsMortgageBankingAndServicing

us-gaap:FeesAndCommissionsMortgageBankingAndServicing


Fees
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value7.46.75.8535.9135.136.4046.2325.8885.8215.4125.6115.2675.6725.7455.1575.248
Percentage of FeesAndCommissionsMortgageBankingAndServicing100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:FeesAndCommissionsMortgageBankingAndServicing us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments

us-gaap:OperatingSegments, wal:CommercialSegment


Fees
Period End2021-06-302021-03-312020-06-302020-03-31
Value6.96.24.86.0
Percentage of FeesAndCommissionsMortgageBankingAndServicing93.292.593.693.7

us-gaap:OperatingSegments, wal:ConsumerRelatedSegment


Fees
Period End2021-06-302021-03-312020-06-302020-03-31
Value0.50.50.30.4
Percentage of FeesAndCommissionsMortgageBankingAndServicing6.87.55.86.2

us-gaap:OperatingSegments, wal:HOAServices


Fees
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value0.1140.0780.1160.0880.0770.0750.0880.060.2080.1710.1460.1380.136
Percentage of FeesAndCommissionsMortgageBankingAndServicing1.91.51.81.41.31.31.61.13.93.02.52.72.6

us-gaap:OperatingSegments, wal:OtherNationalBusinessLines


Fees
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value0.0030.0020.0020.0010.0010.0010.0010.00.00.00.00.00.0
Percentage of FeesAndCommissionsMortgageBankingAndServicing0.10.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:OperatingSegments, wal:TechnologyandInnovation


Fees
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value0.9630.8510.8930.8780.8130.8060.7131.0040.6430.7390.8150.7520.762
Percentage of FeesAndCommissionsMortgageBankingAndServicing16.316.613.914.113.813.813.217.912.213.014.214.614.5

us-gaap:FeesAndCommissionsMortgageBankingAndServicing us-gaap:ConsolidationItems, us-gaap:StatementGeographical

srt:ReportableGeographicalComponents, stpr:AZ


Fees
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value1.1881.0761.2621.2561.2261.2191.0791.0760.9170.9920.9170.7820.765
Percentage of FeesAndCommissionsMortgageBankingAndServicing20.121.019.720.220.820.919.919.217.417.516.015.214.6

srt:ReportableGeographicalComponents, stpr:NV


Fees
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value1.8261.5632.1812.1512.0362.0311.9152.0081.9672.1072.0691.9261.952
Percentage of FeesAndCommissionsMortgageBankingAndServicing30.930.534.134.534.634.935.435.837.337.136.037.337.2

srt:ReportableGeographicalComponents, wal:NorthernCalifornia


Fees
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value0.930.9021.0321.0640.9650.9670.890.850.9050.9811.0590.9651.011
Percentage of FeesAndCommissionsMortgageBankingAndServicing15.717.616.117.116.416.616.415.117.217.318.418.719.3

srt:ReportableGeographicalComponents, wal:SouthernCalifornia


Fees
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value0.8890.6580.9180.7940.770.7220.7260.6130.6340.6810.7380.5910.628
Percentage of FeesAndCommissionsMortgageBankingAndServicing15.012.814.312.713.112.413.410.912.012.012.811.512.0

us-gaap:FinancingReceivableAllowanceForCreditLossesRecovery

us-gaap:FinancingReceivableAllowanceForCreditLossesRecovery


Financing
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-30
Value2.20.71.8020.579-0.259-3.260.932.7110.9781.0830.8361.6931.325-2.233-17.2772.7673.9721.4382.2081.4891.8285.661.9873.1335.02.0293.3653.8163.5052.4162.3594.7863.072.6673.1781.8922.6832.9461.9552.5582.423
Percentage of FinancingReceivableAllowanceForCreditLossesRecovery100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:FinancingReceivableAllowanceForCreditLossesRecovery us-gaap:FinancingReceivablePortfolioSegment

us-gaap:ResidentialRealEstate


Financing
Period End2021-06-302020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value0.10.0150.355-0.018-0.0120.1490.131-0.027-0.093
Percentage of FinancingReceivableAllowanceForCreditLossesRecovery4.50.861.36.90.416.04.8-2.8-8.6

wal:CommercialRealEstateOwnerOccupied


Financing
Period End2020-12-312020-09-302020-06-302020-03-31
Value0.0880.005-0.003-0.002
Percentage of FinancingReceivableAllowanceForCreditLossesRecovery4.90.91.20.1

wal:ConstructionAndLandDevelopment


Financing
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value0.0770.006-0.007-0.010.0190.017-0.009-0.055
Percentage of FinancingReceivableAllowanceForCreditLossesRecovery4.31.02.70.32.00.6-0.9-5.1

wal:OtherCommercialRealEstateNonownerOccupied


Financing
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-31
Value1.2-0.20.1340.00.365-2.0
Percentage of FinancingReceivableAllowanceForCreditLossesRecovery54.5-28.67.40.0-140.961.3

wal:OtherLoanSegment


Financing
Period End2021-06-302020-12-312020-09-302020-06-30
Value0.5-0.0120.0210.1
Percentage of FinancingReceivableAllowanceForCreditLossesRecovery22.7-0.73.6-38.6

wal:Othercommercialandindustrial


Financing
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-31
Value0.30.31.50.192-0.5161.3
Percentage of FinancingReceivableAllowanceForCreditLossesRecovery13.642.983.233.2199.2-39.9

wal:TechInnovation


Financing
Period End2021-06-302021-03-312020-06-30
Value0.1-0.20.0
Percentage of FinancingReceivableAllowanceForCreditLossesRecovery4.5-28.6-0.0

us-gaap:FinancingReceivableAllowanceForCreditLossesWriteOffs

us-gaap:FinancingReceivableAllowanceForCreditLossesWriteOffs


Financing
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-30
Value2.32.15.8078.7735.7230.0972.1542.0992.5562.3134.134.7653.9013.6242.2943.1572.812.7431.3882.7091.4518.0012.4911.1172.0420.8472.611.0111.9742.06738-3.258-5.7228.03916101617161716
Percentage of FinancingReceivableAllowanceForCreditLossesWriteOffs100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:FinancingReceivableAllowanceForCreditLossesWriteOffs us-gaap:FinancingReceivablePortfolioSegment

us-gaap:ResidentialRealEstate


Financing
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value-0.0070.3070.00.00.0060.0090.3970.188
Percentage of FinancingReceivableAllowanceForCreditLossesWriteOffs-0.13.50.00.00.30.415.58.1

wal:CommercialRealEstateOwnerOccupied


Financing
Period End2020-12-312020-09-302020-06-302020-03-31
Value0.0740.0830.0430.0
Percentage of FinancingReceivableAllowanceForCreditLossesWriteOffs1.30.90.80.0

wal:OtherCommercialRealEstateNonownerOccupied


Financing
Period End2021-06-302021-03-312020-12-312020-09-302020-06-30
Value0.02.0-0.0311.2460.885
Percentage of FinancingReceivableAllowanceForCreditLossesWriteOffs0.095.2-0.514.215.5

wal:OtherLoanSegment


Financing
Period End2020-12-312020-09-302020-06-30
Value0.0690.0250.1
Percentage of FinancingReceivableAllowanceForCreditLossesWriteOffs1.20.31.7

wal:Othercommercialandindustrial


Financing
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-31
Value0.30.13.7160.7481.8810.1
Percentage of FinancingReceivableAllowanceForCreditLossesWriteOffs13.04.864.08.532.9103.1

wal:TechInnovation


Financing
Period End2021-06-302020-12-312020-09-302020-06-30
Value2.01.9866.3642.75
Percentage of FinancingReceivableAllowanceForCreditLossesWriteOffs87.034.272.548.1

us-gaap:FinancingReceivableModificationsNumberOfContracts2

us-gaap:FinancingReceivableModificationsNumberOfContracts2


Financing
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302015-12-312015-09-302015-06-302014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-30
Value6.03.0-5.020.02.07.02.03.02.02.01.04.02.05.012.02.001.02.0002.01.013.04.04.03.04.06.015.018.015.018.0
Percentage of FinancingReceivableModificationsNumberOfContracts2100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.00.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:FinancingReceivableModificationsPostModificationRecordedInvestment2

us-gaap:FinancingReceivableModificationsPostModificationRecordedInvestment2


Financing
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302015-12-312015-09-302015-06-302014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-30
Value9.74.71.62510261.345111.8271.0262.81615-0.1721.90.04.92.4050.00.00.2710.256201.756140.5681.4992.6674.476149.81429
Percentage of FinancingReceivableModificationsPostModificationRecordedInvestment2100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.00.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:FinancingReceivableModificationsSubsequentDefaultRecordedInvestment1

us-gaap:FinancingReceivableModificationsSubsequentDefaultRecordedInvestment1


Financing
Period End2021-06-302020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302018-12-312018-09-302017-12-312017-09-302017-06-302016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-31
Value5.94.30.80.00.7-0.0290.00.00.01.1970.10.30.0750.00.3335.3810.8450.00.2020.1370.4910.4930.3980.5680.31.6370.04.433
Percentage of FinancingReceivableModificationsSubsequentDefaultRecordedInvestment1100.0100.0100.00.0100.0100.00.00.00.0100.0100.0100.0100.00.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0

us-gaap:FinancingReceivableSignificantPurchases

us-gaap:FinancingReceivableSignificantPurchases


Financing
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value268413011024514530667703709590530590482
Percentage of FinancingReceivableSignificantPurchases100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:FinancingReceivableSignificantPurchases us-gaap:FinancingReceivablePortfolioSegment

us-gaap:ResidentialRealEstate


Financing
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value23031016397243405279475428218312
Percentage of FinancingReceivableSignificantPurchases85.878.138.847.376.541.967.660.536.958.9

wal:CommercialAndIndustrial


Financing
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value271123286227260338187
Percentage of FinancingReceivableSignificantPurchases52.723.242.932.436.857.335.4

wal:Municipalandnonprofit


Financing
Period End2020-12-312020-09-302020-06-30
Value49-0.0061.6
Percentage of FinancingReceivableSignificantPurchases4.8-0.00.3

wal:OtherCommercialRealEstateNonownerOccupied


Financing
Period End2021-06-30
Value14
Percentage of FinancingReceivableSignificantPurchases0.6

wal:OtherLoanSegment


Financing
Period End2021-06-302021-03-31
Value6.232
Percentage of FinancingReceivableSignificantPurchases0.22.5

wal:Othercommercialandindustrial


Financing
Period End2021-06-302021-03-312020-06-302020-03-31
Value2562173991
Percentage of FinancingReceivableSignificantPurchases9.616.77.513.7

wal:TechInnovation


Financing
Period End2021-06-302021-03-312020-06-302020-03-31
Value1033483177
Percentage of FinancingReceivableSignificantPurchases3.82.715.826.5

wal:Warehouselending


Financing
Period End2020-12-312020-09-302020-06-302020-03-31
Value-0.0460.00.099
Percentage of FinancingReceivableSignificantPurchases-0.00.00.014.9

us-gaap:FinancingReceivableSignificantSales

us-gaap:FinancingReceivableSignificantSales


Financing
Period End2021-06-302021-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-31
Value1411004914191520123.131120410.09.22.2130.023-16.5264610.0
Percentage of FinancingReceivableSignificantSales100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.00.0100.0100.0100.0100.0100.0

us-gaap:FinancingReceivablesImpairedTroubledDebtRestructuringWriteDown

us-gaap:FinancingReceivablesImpairedTroubledDebtRestructuringWriteDown


Financing
Period End2021-06-302013-06-302013-03-312012-06-302012-03-31
Value2000000.001030000.0750000.0470000.0
Percentage of FinancingReceivablesImpairedTroubledDebtRestructuringWriteDown100.00.0100.0100.0100.0

us-gaap:GainLossOnSalesOfLoansNet

us-gaap:GainLossOnSalesOfLoansNet


Gain
Period End2021-06-302021-03-312020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-31
Value105-0.70.00.01.22-0.017-0.105-0.4080.2040.9910.7650.6781.062-0.01-0.055-0.0520.2340.045-0.4582.6710.130.0680.1180.201
Percentage of GainLossOnSalesOfLoansNet100.0100.00.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:GainsLossesOnSalesOfAssets us-gaap:FinancialInstrument

us-gaap:GainsLossesOnSalesOfAssets

wal:MortgageServicingAsset


Gains
Period End2021-06-30
Value-200000.0
Percentage of GainsLossesOnSalesOfAssets100.0

us-gaap:GeneralInsuranceExpense

us-gaap:GeneralInsuranceExpense


General
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-30
Value5.54.23.7943.0643.4442.9983.2333.0712.8112.8092.5393.7123.8853.8693.6873.5383.5893.2283.4683.1442.9633.3233.2643.3752.2742.092.3861.9962.0872.3931.7441.8842.0962.372.1882.1212.1522.052.1672.664
Percentage of GeneralInsuranceExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncreaseDecreaseInDeferredIncomeTaxes

us-gaap:IncreaseDecreaseInDeferredIncomeTaxes


Increase
Period End2021-06-302021-03-312020-12-31
Value-13.318-15.3
Percentage of IncreaseDecreaseInDeferredIncomeTaxes100.0100.0100.0

us-gaap:IncreaseDecreaseInDeposits

us-gaap:IncreaseDecreaseInDeposits


Increase
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-30
Value35276462308712982713203435510001231103126882173238267873675806106241111910514202032.414731233228320310563274-72.1052791761601022402544901599.91398
Percentage of IncreaseDecreaseInDeposits100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:InformationTechnologyAndDataProcessing

us-gaap:InformationTechnologyAndDataProcessing


Information
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
Value159.99.6568.8648.5778.603107.0956.7936.3326.0285.8955.5865.2075.0624.5244.3965.2712.1546.0775.8684.5614.6294.3382.6833.1263.0482.1092.4012.6742.041.8722.1751.8652.0711.391.2930.9950.8950.8950.9280.8480.9470.8420.793
Percentage of InformationTechnologyAndDataProcessing100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:InterestAndDividendIncomeOperating

us-gaap:InterestAndDividendIncomeOperating


Interest
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
Value39833433130431830731531530229128126525123422821720619218718417415415114611611011010510198979289838478777776747371727070
Percentage of InterestAndDividendIncomeOperating100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:InterestExpenseBorrowings

us-gaap:InterestExpenseBorrowings


Interest
Period End2021-06-302020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
Value9.20.0050.0350.0350.0280.0340.0331.2770.9770.091.9361.3260.2280.0840.0590.190.1420.0680.1970.1020.121.2462.0682.2442.2881.8462.6862.8192.6983.4092.7272.6722.4922.2252.3282.0712.0532.0242.0232.1822.0310.8960.369
Percentage of InterestExpenseBorrowings100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:InterestExpenseDeposits

us-gaap:InterestExpenseDeposits


Interest
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
Value111010121532374341353125191412119.6458.4127.7298.0727.6786.2435.7375.555.3625.1465.2455.1724.934.6654.4424.2323.9293.7323.893.9744.1684.7625.5496.9827.5487.8988.6529.53111
Percentage of InterestExpenseDeposits100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:InterestExpenseSecuritiesSoldUnderAgreementsToRepurchase

us-gaap:InterestExpenseSecuritiesSoldUnderAgreementsToRepurchase


Interest
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
Value100000.0105000.013000.086000.0396000.0553000.013000.0238000.0662000.0473000.028000.014000.09000.09000.012000.013000.016000.019000.015000.014000.016000.024000.022000.019000.023000.026000.020000.016000.019000.019000.020000.022000.035000.036000.037000.058000.063000.073000.077000.0100000.086000.067000.074000.0114000.0
Percentage of InterestExpenseSecuritiesSoldUnderAgreementsToRepurchase100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:InterestExpenseSubordinatedNotesAndDebentures

us-gaap:InterestExpenseSubordinatedNotesAndDebentures


Interest
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-31
Value7.25.96.0677.8724.7125.2495.4925.7856.0086.1055.8295.7945.6954.9694.7344.7084.4934.3384.2524.0482.5142.184
Percentage of InterestExpenseSubordinatedNotesAndDebentures100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:InterestIncomeExpenseAfterProvisionForLoanLoss

us-gaap:InterestIncomeExpenseAfterProvisionForLoanLoss


Interest
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
Value385349349270206217267262247243237228219208206196189175174170161143140137108102101979387858478706563575655535151423634
Percentage of InterestIncomeExpenseAfterProvisionForLoanLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:InterestIncomeExpenseAfterProvisionForLoanLoss us-gaap:ConsolidationItems

us-gaap:CorporateNonSegment


Interest
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-31
Value-46.6-56.5-50.521-39.628-33.637-15.514-10.861-5.1852.8167.4028.6473.3242.24-2.004-6.577-8.483-12.763-11.771-16.463-17.526-14.923-10.428-10.656-11.845-6.961-5.344-4.277-4.654-6.32-1.183
Percentage of InterestIncomeExpenseAfterProvisionForLoanLoss-12.1-16.2-14.5-14.7-16.3-7.1-4.1-2.01.13.03.61.51.0-1.0-3.2-4.3-6.7-6.7-9.4-10.3-9.3-7.3-7.6-8.6-6.4-5.2-4.2-4.8-6.8-1.4

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

us-gaap:OperatingSegments, wal:CommercialSegment


Interest
Period End2021-06-302021-03-312020-06-302020-03-31
Value299300156180
Percentage of InterestIncomeExpenseAfterProvisionForLoanLoss77.785.876.082.9

us-gaap:OperatingSegments, wal:ConsumerRelatedSegment


Interest
Period End2021-06-302021-03-312020-06-302020-03-31
Value1321068252
Percentage of InterestIncomeExpenseAfterProvisionForLoanLoss34.430.440.224.2

us-gaap:OperatingSegments, wal:HFFLoanPortfolio


Interest
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-30
Value10-6.0747.648131012121213131213141113131312
Percentage of InterestIncomeExpenseAfterProvisionForLoanLoss3.8-2.93.55.04.15.15.05.25.86.16.26.37.26.17.87.57.87.5

us-gaap:OperatingSegments, wal:HOAServices


Interest
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-31
Value22252222212120171715151313131211119.8998.5546.8766.4016.3655.698
Percentage of InterestIncomeExpenseAfterProvisionForLoanLoss8.312.310.28.28.48.88.57.57.87.37.46.77.07.27.26.76.66.16.04.94.75.95.6

us-gaap:OperatingSegments, wal:OtherNationalBusinessLines


Interest
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-31
Value4955283631272216171717201212101310101010131312
Percentage of InterestIncomeExpenseAfterProvisionForLoanLoss18.226.812.913.612.111.09.37.17.58.08.49.76.46.86.17.96.36.77.37.310.112.312.0

us-gaap:OperatingSegments, wal:PublicandNonProfitFinance


Interest
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-31
Value2.0190.8062.9732.8713.5853.3653.4644.244.2363.8213.9537.4467.1787.2925.9765.3155.3274.8515.595.3784.5773.4343.944
Percentage of InterestIncomeExpenseAfterProvisionForLoanLoss0.70.41.41.11.41.41.41.81.91.71.93.63.73.83.43.03.13.03.93.83.33.23.9

us-gaap:OperatingSegments, wal:TechnologyandInnovation


Interest
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-31
Value5731233833253030252221202020171718171714130.00.0
Percentage of InterestIncomeExpenseAfterProvisionForLoanLoss21.115.310.714.312.610.412.412.711.310.210.210.110.410.810.210.011.010.712.210.69.50.00.0

us-gaap:InterestIncomeExpenseAfterProvisionForLoanLoss us-gaap:ConsolidationItems, us-gaap:StatementGeographical

srt:ReportableGeographicalComponents, stpr:AZ


Interest
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value73505863685855545657535152
Percentage of InterestIncomeExpenseAfterProvisionForLoanLoss27.324.527.023.826.223.522.623.125.026.225.525.126.9

srt:ReportableGeographicalComponents, stpr:NV


Interest
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value38363942403938383735383638
Percentage of InterestIncomeExpenseAfterProvisionForLoanLoss14.117.818.115.815.516.115.816.316.716.218.417.619.5

srt:ReportableGeographicalComponents, wal:NorthernCalifornia


Interest
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value26242125232423232322202118
Percentage of InterestIncomeExpenseAfterProvisionForLoanLoss9.811.99.99.38.99.79.710.010.210.59.910.49.6

srt:ReportableGeographicalComponents, wal:SouthernCalifornia


Interest
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value30212934333129302827272726
Percentage of InterestIncomeExpenseAfterProvisionForLoanLoss11.310.213.412.912.912.712.212.712.312.813.013.613.7

us-gaap:InterestIncomeSecuritiesTaxable

us-gaap:InterestIncomeSecuritiesTaxable


Interest
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
Value4132282627262728272828262525252219161513111210108.0038.5139.1879.2639.92610113.9773.6163.8324.7895.2955.8156.4126.9757.2077.6336.8976.1795.5275.203
Percentage of InterestIncomeSecuritiesTaxable100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:InterestPaid

us-gaap:InterestPaid


Interest
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-30
Value791521251546355446433234212512218.524176.509164.314133.259112.38211-0.161164.5075.9165.965132.3657.1326.697.4625.2759.5266.741128.279139.92212
Percentage of InterestPaid100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:LaborAndRelatedExpense

us-gaap:LaborAndRelatedExpense


Labor
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
Value1288383786972737065686464616257525251494944444143323233323129302828262625252624232222212122
Percentage of LaborAndRelatedExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:LeaseCost

us-gaap:LeaseCost


Lease
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-06-302018-03-31
Value4.43.73.13.93.53.43.23.13.2512.82.5
Percentage of LeaseCost100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:LifeInsuranceCorporateOrBankOwnedChangeInValue

us-gaap:LifeInsuranceCorporateOrBankOwnedChangeInValue


Life
Period End2020-12-312020-09-30
Value1230000.01270000.0
Percentage of LifeInsuranceCorporateOrBankOwnedChangeInValue100.0100.0

us-gaap:LoanProcessingFee

us-gaap:LoanProcessingFee


Loan
Period End2021-06-30
Value10
Percentage of LoanProcessingFee100.0

us-gaap:LoansAndLeasesReceivableGainLossOnSalesNet

us-gaap:LoansAndLeasesReceivableGainLossOnSalesNet


Loans
Period End2021-06-302021-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-31
Value4700000.0700000.01220000.0-17000.0-100000.0-400000.0200000.01000000.0800000.0700000.0800000.000100000.0400000.0-400000.002500000.0900000.0100000.0100000.0200000.0
Percentage of LoansAndLeasesReceivableGainLossOnSalesNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.0100.0100.0100.00.0100.0100.0100.0100.0100.0

us-gaap:LoansAndLeasesReceivableImpairedInterestLostOnNonaccrualLoans

us-gaap:LoansAndLeasesReceivableImpairedInterestLostOnNonaccrualLoans


Loans
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-30
Value1500000.01500000.0900000.01700000.01700000.0700000.0700000.0700000.0500000.0300000.0500000.0600000.0600000.0600000.0600000.0700000.0600000.0600000.02000000.00500000.0400000.0600000.0500000.0700000.0700000.02200000.0300000.0300000.01000000.01600000.01300000.01200000.01200000.01600000.01300000.01500000.0
Percentage of LoansAndLeasesReceivableImpairedInterestLostOnNonaccrualLoans100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:MarketingExpense

us-gaap:MarketingExpense


Marketing
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
Value1700000.0600000.01479000.0848000.0869000.0904000.01559000.0842000.01057000.0741000.01341000.0687000.01146000.0596000.01176000.0776000.01131000.0721000.01164000.0678000.01097000.0657000.01298000.0747000.0463000.0377000.0857000.0378000.0506000.0559000.0-2389000.01599000.01607000.01764000.01546000.01231000.01459000.01371000.01294000.01090000.01135000.01157000.0982000.0878000.01045000.0
Percentage of MarketingExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:NoninterestExpense

us-gaap:NoninterestExpense


Noninterest
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
Value2441351321241141201291251141121111131029895898887888581757272615455505249514948464847454650455148564653
Percentage of NoninterestExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:NoninterestExpense us-gaap:ConsolidationItems

us-gaap:CorporateNonSegment


Noninterest
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-31
Value5.11.5292522121818151211157.8168.7346.2836.9684.093-1.9655.2935.8326.9763.1823.0914.3618.3171.8823.9582.1213.6151.658
Percentage of NoninterestExpense2.11.122.520.719.510.214.614.913.111.49.914.07.68.96.67.84.6-2.26.06.98.54.24.36.013.63.57.14.26.93.3

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

us-gaap:OperatingSegments, wal:CommercialSegment


Noninterest
Period End2021-06-302021-03-312020-06-302020-03-31
Value104987182
Percentage of NoninterestExpense42.572.862.068.4

us-gaap:OperatingSegments, wal:ConsumerRelatedSegment


Noninterest
Period End2021-06-302021-03-312020-06-302020-03-31
Value135352125
Percentage of NoninterestExpense55.426.118.521.4

us-gaap:OperatingSegments, wal:HFFLoanPortfolio


Noninterest
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-30
Value2.5962.3222.4352.4232.1972.1622.3982.1843.0142.22.2062.2171.9053.0562.9882.783.2072.557
Percentage of NoninterestExpense2.12.02.01.91.71.92.12.02.62.12.22.32.13.53.43.13.83.1

us-gaap:OperatingSegments, wal:HOAServices


Noninterest
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-31
Value9.8969.371109.3019.7699.5498.468.38.2548.0337.8036.8737.0117.258-7.1476.5966.0625.825.5415.0744.5154.14.37
Percentage of NoninterestExpense8.08.28.97.27.88.47.57.57.37.88.07.27.98.2-8.17.47.17.17.37.06.26.78.1

us-gaap:OperatingSegments, wal:OtherNationalBusinessLines


Noninterest
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-31
Value1211111211119.3367.6297.286.255.6625.9775.2864.566-4.7214.1973.9723.5983.4373.2443.5414.0613.655
Percentage of NoninterestExpense9.910.09.99.99.09.78.36.96.46.15.86.35.95.2-5.44.74.74.44.64.54.96.66.8

us-gaap:OperatingSegments, wal:PublicandNonProfitFinance


Noninterest
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-31
Value1.7241.5371.8541.9341.8451.9311.9071.7342.1342.082.1742.4151.8711.983-2.2532.0091.9741.9292.0241.6191.4191.3841.253
Percentage of NoninterestExpense1.41.31.51.51.51.71.71.61.92.02.22.52.12.2-2.62.32.32.42.72.21.92.32.3

us-gaap:OperatingSegments, wal:TechnologyandInnovation


Noninterest
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-31
Value11111314121011119.9339.8999.833108.8249.082-8.7798.0948.8377.4346.9063.9463.650.00.0
Percentage of NoninterestExpense9.39.911.010.89.68.810.510.38.79.710.010.59.910.3-10.09.110.49.19.15.45.00.00.0

us-gaap:NoninterestExpense us-gaap:ConsolidationItems, us-gaap:StatementGeographical

srt:ReportableGeographicalComponents, stpr:AZ


Noninterest
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value17172324272222242322212018
Percentage of NoninterestExpense14.214.919.818.821.619.919.721.620.421.921.921.721.1

srt:ReportableGeographicalComponents, stpr:NV


Noninterest
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value15131517151415161615141514
Percentage of NoninterestExpense12.711.812.513.212.112.414.014.414.515.514.316.116.5

srt:ReportableGeographicalComponents, wal:NorthernCalifornia


Noninterest
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value12111313121213131313121211
Percentage of NoninterestExpense10.410.411.310.29.811.011.912.111.613.112.712.812.7

srt:ReportableGeographicalComponents, wal:SouthernCalifornia


Noninterest
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value14131515151514151414131312
Percentage of NoninterestExpense11.312.012.811.912.113.212.913.712.614.113.914.413.8

us-gaap:NoninterestIncome

us-gaap:NoninterestIncome


Noninterest
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
Value136192320215.10916191415134.41813111310101010108.559139.47913-2.1915.9338.6076.2265.7734.835-0.1572.625103.899246.9827.3975.8844.948139.5976.83-0.721220
Percentage of NoninterestIncome100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:NoninterestIncome us-gaap:ConsolidationItems

us-gaap:CorporateNonSegment


Noninterest
Period End2021-06-302020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-31
Value5.27.4376.69311-6.6931.6514.7332.8983.98-0.038-7.3870.904-0.0922.5571.5171.4861.6921.0140.8941.031.9343.9666.16-7.0111.2793.3331.6770.8740.394
Percentage of NoninterestIncome3.831.232.553.0-131.010.324.320.425.8-0.3-167.26.7-0.818.714.714.216.09.68.412.014.741.844.6320.021.638.726.915.18.1

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

us-gaap:OperatingSegments, wal:CommercialSegment


Noninterest
Period End2021-06-302021-03-312020-06-302020-03-31
Value13199.611
Percentage of NoninterestIncome10.297.545.1223.1

us-gaap:OperatingSegments, wal:ConsumerRelatedSegment


Noninterest
Period End2021-06-302021-03-312020-06-302020-03-31
Value1160.50.40.4
Percentage of NoninterestIncome86.02.51.97.8

us-gaap:OperatingSegments, wal:HOAServices


Noninterest
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-31
Value0.1340.0910.1260.0990.0840.0880.0960.0710.2150.1790.150.1410.1360.140.1410.120.1250.110.1050.0860.0830.080.073
Percentage of NoninterestIncome0.70.42.50.60.40.60.60.54.91.31.31.01.31.31.31.11.21.30.80.90.6-3.71.2

us-gaap:OperatingSegments, wal:OtherNationalBusinessLines


Noninterest
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-31
Value2.9240.5690.6151.3541.7081.5490.6570.8940.5490.4090.2240.140.3790.5320.7210.7170.7280.2350.6350.4360.168-0.1920.437
Percentage of NoninterestIncome14.22.712.08.48.810.94.36.612.43.01.91.03.75.16.86.86.82.74.84.61.28.87.4

us-gaap:OperatingSegments, wal:TechnologyandInnovation


Noninterest
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-31
Value3.1263.1462.9753.3215.4222.1633.3624.6032.8363.633.0512.7331.8551.9611.8732.1051.8711.1151.6371.0951.1570.00.0
Percentage of NoninterestIncome15.214.858.220.727.915.221.833.864.227.026.220.018.018.817.820.017.513.012.511.68.4-0.00.0

us-gaap:NoninterestIncome us-gaap:ConsolidationItems, us-gaap:StatementGeographical

srt:ReportableGeographicalComponents, stpr:AZ


Noninterest
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value1.7711.4871.6842.1191.8211.7071.5211.7872.232.2561.4161.191.265
Percentage of NoninterestIncome8.67.033.013.29.412.09.913.150.516.812.28.712.3

srt:ReportableGeographicalComponents, stpr:NV


Noninterest
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value2.3912.1462.8184.0952.6772.6772.5732.7412.5732.6793.3332.3352.354
Percentage of NoninterestIncome11.610.155.225.613.818.816.720.158.219.928.617.122.9

srt:ReportableGeographicalComponents, wal:NorthernCalifornia


Noninterest
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value2.3811.6782.3912.2921.9172.1622.222.6512.3122.4212.5474.1611.796
Percentage of NoninterestIncome11.67.946.814.39.915.214.419.552.318.021.930.417.5

srt:ReportableGeographicalComponents, wal:SouthernCalifornia


Noninterest
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value1.1860.891.1931.0951.0790.9741.0010.9020.9310.9661.0010.7940.971
Percentage of NoninterestIncome5.84.223.46.85.66.96.56.621.17.28.65.89.4

us-gaap:NoninterestIncomeOtherOperatingIncome

us-gaap:NoninterestIncomeOtherOperatingIncome


Noninterest
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
Value500000.02200000.03528000.01947000.0513000.01512000.01647000.01869000.01653000.0987000.0859000.0635000.0512000.0432000.0403000.0599000.0590000.01997000.01547000.01814000.01693000.01782000.01014000.02252000.0921000.0974000.01760000.01189000.01145000.01158000.0-2160000.01558000.01528000.0596000.0-511000.02604000.01416000.0556000.0-1073000.0840000.01060000.0425000.0-2478000.02008000.01392000.0
Percentage of NoninterestIncomeOtherOperatingIncome100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OccupancyNet

us-gaap:OccupancyNet


Occupancy
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
Value108.68.3489.4268.1018.2258.2568.2637.7618.2277.7337.4067.4016.8646.5327.5076.9276.8946.9446.8567.2466.2576.5035.9154.9494.8134.6824.54.3284.6824.6264.9014.7534.8464.7694.6554.6694.7224.9485.1265.0444.8545.0754.894.828
Percentage of OccupancyNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OffBalanceSheetCreditLossLiabilityCreditLossExpenseReversal

us-gaap:OffBalanceSheetCreditLossLiabilityCreditLossExpenseReversal


Off
Period End2021-06-302021-03-312020-06-302020-03-31
Value-1.3-4.46.65.5
Percentage of OffBalanceSheetCreditLossLiabilityCreditLossExpenseReversal100.0100.0100.0100.0

us-gaap:OperatingLeaseExpense

us-gaap:OperatingLeaseExpense


Operating
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value3.73.06.0280.0472.7992.7545.119-0.0162.6010.00.00.00.0
Percentage of OperatingLeaseExpense100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.00.00.0

us-gaap:OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax

us-gaap:OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-30
Value44-72.3134.9083612-10.59111342536-24.502-9.653-37.459-10.4261.8713.617.939-41.052-10.2341311-14.5645.486-8.3787.1537.391.1241010-6.833-4.8-17.958-0.924-3.488.487
Percentage of OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax us-gaap:RetirementPlanType

us-gaap:SupplementalEmployeeRetirementPlanDefinedBenefit


Other
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-30
Value-0.5960.003-0.003-0.29-0.359-0.018-0.017-0.018-0.042-0.012-0.012-0.0110.1140.1140.037-0.0010.0130.006
Percentage of OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax-4.30.1-0.0-2.33.4-0.2-0.0-0.1-0.10.00.10.0-1.16.11.0-0.0-0.0-0.1

us-gaap:OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax us-gaap:StatementEquityComponents

us-gaap:AccumulatedGainLossFinancialLiabilityFairValueOptionAttributableToParent


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value0.20.3-3.9712.681-3.0056.557-3.140.598-1.334-5.9285.507-2.0280.7481.466-0.9270.641
Percentage of OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax0.4-0.4-28.954.6-8.352.329.65.2-3.9-23.315.18.3-7.7-3.98.934.3

us-gaap:AccumulatedNetUnrealizedInvestmentGainLoss


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-31
Value44-72.0177.592396.276-7.09211353130-22.462-10.389-38.914-9.6131.1165.6629.169-40.479-7.4151211-10.3785.486-8.3787.1537.391.1241010-6.833-4.77-18.005-0.89
Percentage of OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax100.499.6128.9154.7108.350.067.095.0103.9123.485.091.7107.6103.992.259.6156.8115.598.672.595.693.571.3100.0100.0100.0100.0100.0100.0100.0100.099.4100.396.3

us-gaap:OtherComprehensiveIncomeLossFinancialLiabilityFairValueOptionUnrealizedGainLossArisingDuringPeriodAfterTax

us-gaap:OtherComprehensiveIncomeLossFinancialLiabilityFairValueOptionUnrealizedGainLossArisingDuringPeriodAfterTax


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302016-12-312016-09-30
Value200000.0300000.0-3971000.02681000.0-3005000.06557000.0-3140000.0598000.0-1334000.0-5928000.05507000.0-2028000.0748000.01466000.0-927000.0641000.0-586000.0-2825000.0
Percentage of OtherComprehensiveIncomeLossFinancialLiabilityFairValueOptionUnrealizedGainLossArisingDuringPeriodAfterTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherComprehensiveIncomeLossFinancialLiabilityFairValueOptionUnrealizedGainLossArisingDuringPeriodTax

us-gaap:OtherComprehensiveIncomeLossFinancialLiabilityFairValueOptionUnrealizedGainLossArisingDuringPeriodTax


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302016-09-30
Value0100000.0815000.0874000.0979000.0-2138000.01024000.0-196000.0435000.01934000.0-1796000.0661000.0-244000.0-478000.0571000.0-394000.01779000.0
Percentage of OtherComprehensiveIncomeLossFinancialLiabilityFairValueOptionUnrealizedGainLossArisingDuringPeriodTax0.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax

us-gaap:OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax


Other
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-30
Value4000.03000.03000.0290000.0359000.018000.017000.018000.042000.012000.012000.011000.0-114000.0-114000.0-37000.01000.0-13000.0-6000.0-6000.0-6000.018000.0229000.0-337000.00000
Percentage of OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.00.00.0

us-gaap:OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansTax

us-gaap:OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansTax


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-30
Value006000.01000.01000.092000.0120000.06000.06000.06000.014000.04000.04000.02000.014000.0-71000.0-23000.01000.0-28000.04000.04000.0-52000.011000.0143000.0-207000.00000
Percentage of OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansTax0.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.00.00.0

us-gaap:OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesBeforeTax

us-gaap:OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesBeforeTax


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value0100000.0-30000.00158000.072000.003152000.000-424000.0-7232000.0
Percentage of OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesBeforeTax0.0100.0100.00.0100.0100.00.0100.00.00.0100.0100.0

us-gaap:OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax

us-gaap:OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-30
Value0100000.026000.00120000.054000.002376000.000-319000.0-5454000.000883000.0197000.0-29000.0393000.0-56000.000711000.020000.0-38000.034000.0369000.0234000.0113000.0-102000.0229000.0209000.0-1046000.0-3000.097000.0404000.0668000.0
Percentage of OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax0.0100.0100.00.0100.0100.00.0100.00.00.0100.0100.00.00.0100.0100.0100.0100.0100.00.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesTax

us-gaap:OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesTax


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-30
Value00-56000.00-38000.0-18000.00-776000.000-105000.0-1778000.000553000.0122000.0-18000.0242000.0694000.000230000.013000.0-24000.021000.0220000.0139000.068000.0-61000.0137000.0133000.0-633000.0-2000.050000.0524000.0363000.0
Percentage of OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesTax0.00.0100.00.0100.0100.00.0100.00.00.0100.0100.00.00.0100.0100.0100.0100.0100.00.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax

us-gaap:OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
Value44-72.0177.592396.276-7.09211353130-22.462-10.389-38.914-9.6131.1165.6629.169-40.57-7.4151211-10.3785.486-8.3787.1537.391.1241010-6.833-4.77-18.005-0.89-2.9618.4784.1196.205-2.1823.35710-4.486-6.832-2.3631.842
Percentage of OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax

us-gaap:OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-30
Value14-23.55.792.52122.0-2.3233.592
Percentage of OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherInterestAndDividendIncome

us-gaap:OtherInterestAndDividendIncome


Other
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
Value0.50.2142.4151.7596.4593.1462.5392.782.5761.3951.4881.3252.5832.0890.9120.4530.830.6240.431-3.2421.1071.8740.7830.5970.5830.4960.5720.5430.40.370.2250.2460.0550.1150.0920.1530.2370.1850.1540.2080.3280.472
Percentage of OtherInterestAndDividendIncome100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherNoninterestExpense

us-gaap:OtherNoninterestExpense


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
Value8.87.46.1676.1316.3626.549.7538.2117.8427.7848.989146.9538.1289.5878.2786.8319.1429.7638.4157.88.0847.5127.5385.0215.4387.8935.5425.0046.1867.4073.9254.0413.0343.073.9123.223.4992.9473.5243.7022.5470.9523.3172.918
Percentage of OtherNoninterestExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:PaymentsForProceedsFromLoansAndLeases

us-gaap:PaymentsForProceedsFromLoansAndLeases


Payments
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-31
Value10751611109198018341991983982107838599462260136769344339434225815029610532542874440
Percentage of PaymentsForProceedsFromLoansAndLeases100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:PaymentsForProceedsFromProductiveAssets

us-gaap:PaymentsForProceedsFromProductiveAssets


Payments
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-30
Value3.210-6.303133.14216196.1186.0123.1522.9946.4831.260.5761.2182.5512.5182.5751.252.7323.5063.086-1.0047.9741.6492.2373.4225.0124.3881.103161.3440.3670.7612.6031.4662.5741.9110.931-0.471-1.32-0.229-0.0920.591
Percentage of PaymentsForProceedsFromProductiveAssets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:PaymentsRelatedToTaxWithholdingForShareBasedCompensation

us-gaap:PaymentsRelatedToTaxWithholdingForShareBasedCompensation


Payments
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value0.112-0.470.5150.3977.4580.0631.5310.1517.9
Percentage of PaymentsRelatedToTaxWithholdingForShareBasedCompensation100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:PaymentsToAcquireAvailableForSaleSecurities

us-gaap:PaymentsToAcquireAvailableForSaleSecurities


Payments
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-31
Value178274812458242416541816229726269165186767602574185187656233128165566931.06142142435619355124442614410622537568174476
Percentage of PaymentsToAcquireAvailableForSaleSecurities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:PaymentsToAcquireBusinessesGross

us-gaap:PaymentsToAcquireBusinessesGross


Payments
Period End2021-06-30
Value1220
Percentage of PaymentsToAcquireBusinessesGross100.0

us-gaap:PaymentsToAcquireHeldToMaturitySecurities

us-gaap:PaymentsToAcquireHeldToMaturitySecurities


Payments
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-31
Value2741317557242430444510228.25187.8106213010391515210.00.00.00.0
Percentage of PaymentsToAcquireHeldToMaturitySecurities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.00.00.0

us-gaap:PaymentsToAcquireRestrictedInvestments

us-gaap:PaymentsToAcquireRestrictedInvestments


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