$WAL
WESTERN ALLIANCE BANCORPORATION Stock $wal

$wal Overview Financials Valuation SEC Filings Company Website

2018 Q4 Form 10-Q Financial Statement

#000121254518000180 Filed on October 30, 2018

Income Statement

Concept	2018 Q4	2018 Q3	2017 Q3
Revenue	$282.0M	$265.2M	$217.8M
YoY Change	23.42%	21.75%	17.91%
Cost Of Revenue
YoY Change
Gross Profit
YoY Change
Gross Profit Margin
Selling, General & Admin
YoY Change
% of Gross Profit
Research & Development
YoY Change
% of Gross Profit
Depreciation & Amortization	$3.800M	$3.700M	$3.600M
YoY Change	11.76%	2.78%	12.5%
% of Gross Profit
Operating Expenses
YoY Change
Operating Profit
YoY Change
Interest Expense	$38.46M	$31.18M	$16.25M
YoY Change	120.63%	91.83%	33.19%
% of Operating Profit
Other Income/Expense, Net
YoY Change
Pretax Income	$140.0M	$118.6M	$117.7M
YoY Change	12.61%	0.74%	22.36%
Income Tax	$20.91M	$7.492M	$34.90M
% Of Pretax Income	14.94%	6.32%	29.64%
Net Earnings	$119.1M	$111.1M	$82.84M
YoY Change	33.29%	34.14%	23.55%
Net Earnings / Revenue	42.23%	41.9%	38.03%
Basic Earnings Per Share	$1.14	$1.06	$0.79
Diluted Earnings Per Share	$1.13	$1.05	$0.79
COMMON SHARES
Basic Shares Outstanding	105.9M shares	104.8M shares	104.2M shares
Diluted Shares Outstanding		105.4M shares	104.9M shares

Balance Sheet

Concept	2018 Q4	2018 Q3	2017 Q3
SHORT-TERM ASSETS
Cash & Short-Term Investments
YoY Change
Cash & Equivalents	$498.6M	$700.6M	$650.4M
Short-Term Investments
Other Short-Term Assets
YoY Change
Inventory
Prepaid Expenses
Receivables
Other Receivables
Total Short-Term Assets
YoY Change
LONG-TERM ASSETS
Property, Plant & Equipment	$119.5M	$119.2M	$120.1M
YoY Change	0.64%	-0.71%	-1.0%
Goodwill	$289.9M	$289.9M	$289.9M
YoY Change	0.0%	0.0%	-0.02%
Intangibles	$9.260M	$9.658M	$11.26M
YoY Change	-14.68%	-14.24%	-17.34%
Long-Term Investments	$115.0M	$172.0M
YoY Change
Other Assets	$32.00M	$43.00M	$84.00M
YoY Change	433.33%	-48.81%	15.07%
Total Long-Term Assets
YoY Change
TOTAL ASSETS
Total Short-Term Assets
Total Long-Term Assets
Total Assets	$23.11B	$22.18B	$19.92B
YoY Change	13.68%	11.31%	16.9%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable
YoY Change
Accrued Expenses
YoY Change
Deferred Revenue
YoY Change
Short-Term Debt	$491.0M	$0.00	$0.00
YoY Change	25.9%
Long-Term Debt Due
YoY Change
Total Short-Term Liabilities	$22.00M	$21.00M	$26.00M
YoY Change	-15.38%	-19.23%	-40.91%
LONG-TERM LIABILITIES
Long-Term Debt	$360.0M	$359.0M	$373.0M
YoY Change	-53.06%	-3.75%	-2.61%
Other Long-Term Liabilities	$444.0M	$399.0M	$473.0M
YoY Change	32.93%	-15.64%	50.16%
Total Long-Term Liabilities	$804.0M	$758.0M	$846.0M
YoY Change	-26.98%	-10.4%	21.2%
TOTAL LIABILITIES
Total Short-Term Liabilities	$22.00M	$21.00M	$26.00M
Total Long-Term Liabilities	$804.0M	$758.0M	$846.0M
Total Liabilities	$20.50B	$19.69B	$17.78B
YoY Change	13.24%	10.75%	17.07%
SHAREHOLDERS EQUITY
Retained Earnings	$1.283B	$1.166B	$758.6M
YoY Change	51.18%	53.73%	67.6%
Common Stock	$10.00K	$10.00K	$10.00K
YoY Change	0.0%	0.0%	0.0%
Preferred Stock
YoY Change
Treasury Stock (at cost)	$53.08M	$52.04M	$40.00M
YoY Change	32.14%	30.07%	52.63%
Treasury Stock Shares
Shareholders Equity	$2.614B	$2.488B	$2.146B
YoY Change
Total Liabilities & Shareholders Equity	$23.11B	$22.18B	$19.92B
YoY Change	13.68%	11.31%	16.9%

Cashflow Statement

Concept	2018 Q4	2018 Q3	2017 Q3
OPERATING ACTIVITIES
Net Income	$119.1M	$111.1M	$82.84M
YoY Change	33.29%	34.14%	23.55%
Depreciation, Depletion And Amortization	$3.800M	$3.700M	$3.600M
YoY Change	11.76%	2.78%	12.5%
Cash From Operating Activities	$144.7M	$148.9M	$95.70M
YoY Change	28.39%	55.59%	-3.72%
INVESTING ACTIVITIES
Capital Expenditures	-$3.000M	-$6.500M	-$2.500M
YoY Change	130.77%	160.0%	-7.41%
Acquisitions
YoY Change
Other Investing Activities	-$1.068B	-$696.6M	-$913.4M
YoY Change	33.09%	-23.74%	33.5%
Cash From Investing Activities	-$1.071B	-$703.2M	-$915.9M
YoY Change	33.25%	-23.22%	33.32%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net
YoY Change
Debt Paid & Issued, Net
YoY Change
Cash From Financing Activities	724.6M	748.0M	864.0M
YoY Change	58.35%	-13.43%	249.23%
NET CHANGE
Cash From Operating Activities	144.7M	148.9M	95.70M
Cash From Investing Activities	-1.071B	-703.2M	-915.9M
Cash From Financing Activities	724.6M	748.0M	864.0M
Net Change In Cash	-201.9M	193.7M	43.80M
YoY Change	-13.57%	342.24%	-112.87%
FREE CASH FLOW
Cash From Operating Activities	$144.7M	$148.9M	$95.70M
Capital Expenditures	-$3.000M	-$6.500M	-$2.500M
Free Cash Flow	$147.7M	$155.4M	$98.20M
YoY Change	29.56%	58.25%	-3.82%

Facts In Submission

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	dei	Current Fiscal Year End Date CurrentFiscalYearEndDate	--12-31
	dei	Document Fiscal Period Focus DocumentFiscalPeriodFocus	Q3
	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2018
	dei	Document Period End Date DocumentPeriodEndDate	2018-09-30
	dei	Document Type DocumentType	10-Q
	dei	Entity Central Index Key EntityCentralIndexKey	0001212545
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	dei	Entity Emerging Growth Company EntityEmergingGrowthCompany	false
	dei	Entity Filer Category EntityFilerCategory	Large Accelerated Filer
	dei	Entity Registrant Name EntityRegistrantName	WESTERN ALLIANCE BANCORPORATION
	dei	Entity Small Business EntitySmallBusiness	false
	dei	Trading Symbol TradingSymbol	WAL
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	us-gaap	Equity Securities Fv Ni Unrealized Gain Loss EquitySecuritiesFvNiUnrealizedGainLoss	-1000	USD
CY2018Q3	us-gaap	Equity Securities Fv Ni Unrealized Gain Loss EquitySecuritiesFvNiUnrealizedGainLoss	-1212000	USD
	us-gaap	Equity Securities Fv Ni Unrealized Gain Loss EquitySecuritiesFvNiUnrealizedGainLoss	-2971000	USD
	us-gaap	Fair Value Assets And Liabilities Measured On Recurring Basis Gain Loss Included In Earnings FairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisGainLossIncludedInEarnings	-2367000	USD
CY2017Q4	us-gaap	Fair Value Disclosure Offbalance Sheet Risks Face Amount Liability FairValueDisclosureOffbalanceSheetRisksFaceAmountLiability	6166876000	USD
CY2018Q3	us-gaap	Fair Value Disclosure Offbalance Sheet Risks Face Amount Liability FairValueDisclosureOffbalanceSheetRisksFaceAmountLiability	7233691000	USD
CY2017Q4	us-gaap	Fair Value Hedge Assets At Fair Value FairValueHedgeAssetsAtFairValue	9959000	USD
CY2018Q3	us-gaap	Fair Value Hedge Assets At Fair Value FairValueHedgeAssetsAtFairValue	28160000	USD
	us-gaap	Fair Value Liabilities Measured On Recurring Basis Change In Unrealized Gain Loss FairValueLiabilitiesMeasuredOnRecurringBasisChangeInUnrealizedGainLoss	-4327000	USD
CY2017Q4	us-gaap	Fair Value Liabilities Measured On Recurring Basis Subordinated Debt Obligations FairValueLiabilitiesMeasuredOnRecurringBasisSubordinatedDebtObligations	56234000	USD
CY2018Q3	us-gaap	Fair Value Liabilities Measured On Recurring Basis Subordinated Debt Obligations FairValueLiabilitiesMeasuredOnRecurringBasisSubordinatedDebtObligations	55987000	USD
	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Liability Gain Loss Included In Other Comprehensive Income FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityGainLossIncludedInOtherComprehensiveIncome	-2677000	USD
CY2017Q4	us-gaap	Federal Funds Purchased FederalFundsPurchased	0	USD
CY2018Q3	us-gaap	Federal Funds Purchased FederalFundsPurchased	0	USD
CY2017Q4	us-gaap	Federal Funds Sold FederalFundsSold	0	USD
CY2018Q3	us-gaap	Federal Funds Sold FederalFundsSold	70000000	USD
CY2017	us-gaap	Federal Home Loan Bank Advances Activity For Year Average Interest Rate For Year FederalHomeLoanBankAdvancesActivityForYearAverageInterestRateForYear	0.0141
CY2017Q4	us-gaap	Federal Home Loan Bank Advances Maturities Summary Due Within One Year Of Balance Sheet Date FederalHomeLoanBankAdvancesMaturitiesSummaryDueWithinOneYearOfBalanceSheetDate	390000000	USD
CY2018Q3	us-gaap	Federal Home Loan Bank Advances Maturities Summary Due Within One Year Of Balance Sheet Date FederalHomeLoanBankAdvancesMaturitiesSummaryDueWithinOneYearOfBalanceSheetDate	0	USD
CY2017Q3	us-gaap	Fees And Commissions Mortgage Banking And Servicing FeesAndCommissionsMortgageBankingAndServicing	5248000	USD
	us-gaap	Fees And Commissions Mortgage Banking And Servicing FeesAndCommissionsMortgageBankingAndServicing	15189000	USD
CY2018Q3	us-gaap	Fees And Commissions Mortgage Banking And Servicing FeesAndCommissionsMortgageBankingAndServicing	5267000	USD
	us-gaap	Fees And Commissions Mortgage Banking And Servicing FeesAndCommissionsMortgageBankingAndServicing	16684000	USD
CY2016Q4	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	124704000	USD
CY2017Q2	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	131811000	USD
CY2017Q3	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	136421000	USD
CY2017Q4	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	140050000	USD
CY2018Q2	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	147083000	USD
CY2018Q3	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	150011000	USD
CY2017Q4	us-gaap	Financing Receivable Allowance For Credit Losses Collectively Evaluated For Impairment FinancingReceivableAllowanceForCreditLossesCollectivelyEvaluatedForImpairment	132813000	USD
CY2018Q3	us-gaap	Financing Receivable Allowance For Credit Losses Collectively Evaluated For Impairment FinancingReceivableAllowanceForCreditLossesCollectivelyEvaluatedForImpairment	148689000	USD
CY2017Q4	us-gaap	Financing Receivable Allowance For Credit Losses Individually Evaluated For Impairment1 FinancingReceivableAllowanceForCreditLossesIndividuallyEvaluatedForImpairment1	5606000	USD
CY2018Q3	us-gaap	Financing Receivable Allowance For Credit Losses Individually Evaluated For Impairment1 FinancingReceivableAllowanceForCreditLossesIndividuallyEvaluatedForImpairment1	1171000	USD
CY2017Q3	us-gaap	Financing Receivable Allowance For Credit Losses Recovery FinancingReceivableAllowanceForCreditLossesRecovery	2767000	USD
	us-gaap	Financing Receivable Allowance For Credit Losses Recovery FinancingReceivableAllowanceForCreditLossesRecovery	8177000	USD
CY2018Q3	us-gaap	Financing Receivable Allowance For Credit Losses Recovery FinancingReceivableAllowanceForCreditLossesRecovery	1693000	USD
	us-gaap	Financing Receivable Allowance For Credit Losses Recovery FinancingReceivableAllowanceForCreditLossesRecovery	5251000	USD
CY2017Q3	us-gaap	Financing Receivable Allowance For Credit Losses Write Offs FinancingReceivableAllowanceForCreditLossesWriteOffs	3157000	USD
	us-gaap	Financing Receivable Allowance For Credit Losses Write Offs FinancingReceivableAllowanceForCreditLossesWriteOffs	8710000	USD
CY2018Q3	us-gaap	Financing Receivable Allowance For Credit Losses Write Offs FinancingReceivableAllowanceForCreditLossesWriteOffs	4765000	USD
	us-gaap	Financing Receivable Allowance For Credit Losses Write Offs FinancingReceivableAllowanceForCreditLossesWriteOffs	12290000	USD
CY2017Q4	us-gaap	Financing Receivable Collectively Evaluated For Impairment FinancingReceivableCollectivelyEvaluatedForImpairment	14879626000	USD
CY2018Q3	us-gaap	Financing Receivable Collectively Evaluated For Impairment FinancingReceivableCollectivelyEvaluatedForImpairment	16521452000	USD
CY2017Q4	us-gaap	Financing Receivable Individually Evaluated For Impairment FinancingReceivableIndividuallyEvaluatedForImpairment	98554000	USD
CY2018Q3	us-gaap	Financing Receivable Individually Evaluated For Impairment FinancingReceivableIndividuallyEvaluatedForImpairment	125569000	USD
CY2017Q3	us-gaap	Financing Receivable Modifications Number Of Contracts2 FinancingReceivableModificationsNumberOfContracts2	2
	us-gaap	Financing Receivable Modifications Number Of Contracts2 FinancingReceivableModificationsNumberOfContracts2	3
CY2018Q3	us-gaap	Financing Receivable Modifications Number Of Contracts2 FinancingReceivableModificationsNumberOfContracts2	4
	us-gaap	Financing Receivable Modifications Number Of Contracts2 FinancingReceivableModificationsNumberOfContracts2	11
CY2017Q3	us-gaap	Financing Receivable Modifications Post Modification Recorded Investment2 FinancingReceivableModificationsPostModificationRecordedInvestment2	1900000	USD
	us-gaap	Financing Receivable Modifications Post Modification Recorded Investment2 FinancingReceivableModificationsPostModificationRecordedInvestment2	6800000	USD
CY2018Q3	us-gaap	Financing Receivable Modifications Post Modification Recorded Investment2 FinancingReceivableModificationsPostModificationRecordedInvestment2	2800000	USD
	us-gaap	Financing Receivable Modifications Post Modification Recorded Investment2 FinancingReceivableModificationsPostModificationRecordedInvestment2	34400000	USD
CY2017Q3	us-gaap	Financing Receivable Modifications Subsequent Default Number Of Contracts1 FinancingReceivableModificationsSubsequentDefaultNumberOfContracts1	1	TDRs
	us-gaap	Financing Receivable Modifications Subsequent Default Number Of Contracts1 FinancingReceivableModificationsSubsequentDefaultNumberOfContracts1	3	TDRs
CY2018Q3	us-gaap	Financing Receivable Modifications Subsequent Default Number Of Contracts1 FinancingReceivableModificationsSubsequentDefaultNumberOfContracts1	0
CY2017Q3	us-gaap	Financing Receivable Modifications Subsequent Default Recorded Investment1 FinancingReceivableModificationsSubsequentDefaultRecordedInvestment1	100000	USD
	us-gaap	Financing Receivable Modifications Subsequent Default Recorded Investment1 FinancingReceivableModificationsSubsequentDefaultRecordedInvestment1	500000	USD
CY2017Q4	us-gaap	Financing Receivable Recorded Investment90 Days Past Due And Still Accruing FinancingReceivableRecordedInvestment90DaysPastDueAndStillAccruing	43000	USD
CY2018Q3	us-gaap	Financing Receivable Recorded Investment90 Days Past Due And Still Accruing FinancingReceivableRecordedInvestment90DaysPastDueAndStillAccruing	0	USD
CY2017Q4	us-gaap	Financing Receivable Recorded Investment Current FinancingReceivableRecordedInvestmentCurrent	15061371000	USD
CY2018Q3	us-gaap	Financing Receivable Recorded Investment Current FinancingReceivableRecordedInvestmentCurrent	16705306000	USD
CY2017Q4	us-gaap	Financing Receivable Recorded Investment Nonaccrual Status FinancingReceivableRecordedInvestmentNonaccrualStatus	43925000	USD
CY2018Q3	us-gaap	Financing Receivable Recorded Investment Nonaccrual Status FinancingReceivableRecordedInvestmentNonaccrualStatus	36868000	USD
CY2017Q4	us-gaap	Financing Receivable Recorded Investment Past Due FinancingReceivableRecordedInvestmentPastDue	32564000	USD
CY2018Q3	us-gaap	Financing Receivable Recorded Investment Past Due FinancingReceivableRecordedInvestmentPastDue	27459000	USD
CY2017Q3	us-gaap	Financing Receivable Significant Sales FinancingReceivableSignificantSales	41300000	USD
	us-gaap	Financing Receivable Significant Sales FinancingReceivableSignificantSales	50500000	USD
CY2018Q3	us-gaap	Financing Receivable Significant Sales FinancingReceivableSignificantSales	12400000	USD
	us-gaap	Financing Receivable Significant Sales FinancingReceivableSignificantSales	46500000	USD
CY2016Q4	us-gaap	Foreclosed Assets ForeclosedAssets	47815000	USD
CY2017Q2	us-gaap	Foreclosed Assets ForeclosedAssets	30988000	USD
CY2017Q3	us-gaap	Foreclosed Assets ForeclosedAssets	28992000	USD
CY2017Q4	us-gaap	Foreclosed Assets ForeclosedAssets	28540000	USD
CY2018Q2	us-gaap	Foreclosed Assets ForeclosedAssets	27541000	USD
CY2018Q3	us-gaap	Foreclosed Assets ForeclosedAssets	20028000	USD
CY2017Q3	us-gaap	Foreign Currency Transaction Gain Loss Before Tax ForeignCurrencyTransactionGainLossBeforeTax	756000	USD
	us-gaap	Foreign Currency Transaction Gain Loss Before Tax ForeignCurrencyTransactionGainLossBeforeTax	2630000	USD
CY2018Q3	us-gaap	Foreign Currency Transaction Gain Loss Before Tax ForeignCurrencyTransactionGainLossBeforeTax	1092000	USD
	us-gaap	Foreign Currency Transaction Gain Loss Before Tax ForeignCurrencyTransactionGainLossBeforeTax	3475000	USD
	us-gaap	Gain Loss On Disposition Of Assets GainLossOnDispositionOfAssets	-67000	USD
	us-gaap	Gain Loss On Disposition Of Assets GainLossOnDispositionOfAssets	42000	USD
CY2017Q3	us-gaap	Gain Loss On Foreign Currency Derivative Instruments Not Designated As Hedging Instruments GainLossOnForeignCurrencyDerivativeInstrumentsNotDesignatedAsHedgingInstruments	800000	USD
	us-gaap	Gain Loss On Foreign Currency Derivative Instruments Not Designated As Hedging Instruments GainLossOnForeignCurrencyDerivativeInstrumentsNotDesignatedAsHedgingInstruments	2600000	USD
CY2018Q3	us-gaap	Gain Loss On Foreign Currency Derivative Instruments Not Designated As Hedging Instruments GainLossOnForeignCurrencyDerivativeInstrumentsNotDesignatedAsHedgingInstruments	1100000	USD
	us-gaap	Gain Loss On Foreign Currency Derivative Instruments Not Designated As Hedging Instruments GainLossOnForeignCurrencyDerivativeInstrumentsNotDesignatedAsHedgingInstruments	3500000	USD
	us-gaap	Gain Loss On Sales Of Loans Net GainLossOnSalesOfLoansNet	-117000	USD
	us-gaap	Gain Loss On Sales Of Loans Net GainLossOnSalesOfLoansNet	2434000	USD
CY2017Q3	us-gaap	Gain On Sale Of Investments GainOnSaleOfInvestments	468000	USD
	us-gaap	Gain On Sale Of Investments GainOnSaleOfInvestments	1181000	USD
CY2018Q3	us-gaap	Gain On Sale Of Investments GainOnSaleOfInvestments	0	USD
	us-gaap	Gain On Sale Of Investments GainOnSaleOfInvestments	0	USD
CY2017Q3	us-gaap	Gains Losses On Sales Of Other Real Estate GainsLossesOnSalesOfOtherRealEstate	78000	USD
	us-gaap	Gains Losses On Sales Of Other Real Estate GainsLossesOnSalesOfOtherRealEstate	233000	USD
CY2018Q3	us-gaap	Gains Losses On Sales Of Other Real Estate GainsLossesOnSalesOfOtherRealEstate	74000	USD
	us-gaap	Gains Losses On Sales Of Other Real Estate GainsLossesOnSalesOfOtherRealEstate	1464000	USD
CY2017Q3	us-gaap	General Insurance Expense GeneralInsuranceExpense	3538000	USD
	us-gaap	General Insurance Expense GeneralInsuranceExpense	10355000	USD
CY2018Q3	us-gaap	General Insurance Expense GeneralInsuranceExpense	3712000	USD
	us-gaap	General Insurance Expense GeneralInsuranceExpense	11466000	USD
CY2017Q4	us-gaap	Goodwill Goodwill	289895000	USD
CY2018Q3	us-gaap	Goodwill Goodwill	289895000	USD
CY2017Q4	us-gaap	Held To Maturity Securities HeldToMaturitySecurities	255050000	USD
CY2018Q3	us-gaap	Held To Maturity Securities HeldToMaturitySecurities	288290000	USD
CY2017Q4	us-gaap	Held To Maturity Securities Accumulated Unrecognized Holding Gain HeldToMaturitySecuritiesAccumulatedUnrecognizedHoldingGain	4514000	USD
CY2018Q3	us-gaap	Held To Maturity Securities Accumulated Unrecognized Holding Gain HeldToMaturitySecuritiesAccumulatedUnrecognizedHoldingGain	773000	USD
CY2017Q4	us-gaap	Held To Maturity Securities Accumulated Unrecognized Holding Loss HeldToMaturitySecuritiesAccumulatedUnrecognizedHoldingLoss	3250000	USD
CY2018Q3	us-gaap	Held To Maturity Securities Accumulated Unrecognized Holding Loss HeldToMaturitySecuritiesAccumulatedUnrecognizedHoldingLoss	10030000	USD
CY2017Q4	us-gaap	Held To Maturity Securities Continuous Unrealized Loss Position12 Months Or Longer Accumulated Loss HeldToMaturitySecuritiesContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss	0	USD
CY2018Q3	us-gaap	Held To Maturity Securities Continuous Unrealized Loss Position12 Months Or Longer Accumulated Loss HeldToMaturitySecuritiesContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss	0	USD
CY2017Q4	us-gaap	Held To Maturity Securities Continuous Unrealized Loss Position Accumulated Loss HeldToMaturitySecuritiesContinuousUnrealizedLossPositionAccumulatedLoss	3250000	USD
CY2018Q3	us-gaap	Held To Maturity Securities Continuous Unrealized Loss Position Accumulated Loss HeldToMaturitySecuritiesContinuousUnrealizedLossPositionAccumulatedLoss	10030000	USD
CY2017Q4	us-gaap	Held To Maturity Securities Continuous Unrealized Loss Position Fair Value HeldToMaturitySecuritiesContinuousUnrealizedLossPositionFairValue	107921000	USD
CY2018Q3	us-gaap	Held To Maturity Securities Continuous Unrealized Loss Position Fair Value HeldToMaturitySecuritiesContinuousUnrealizedLossPositionFairValue	215827000	USD
CY2017Q4	us-gaap	Held To Maturity Securities Continuous Unrealized Loss Position Less Than12 Months Accumulated Loss HeldToMaturitySecuritiesContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss	3250000	USD
CY2018Q3	us-gaap	Held To Maturity Securities Continuous Unrealized Loss Position Less Than12 Months Accumulated Loss HeldToMaturitySecuritiesContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss	10030000	USD
CY2017Q4	us-gaap	Held To Maturity Securities Continuous Unrealized Loss Position Less Than Twelve Months Fair Value HeldToMaturitySecuritiesContinuousUnrealizedLossPositionLessThanTwelveMonthsFairValue	107921000	USD
CY2018Q3	us-gaap	Held To Maturity Securities Continuous Unrealized Loss Position Less Than Twelve Months Fair Value HeldToMaturitySecuritiesContinuousUnrealizedLossPositionLessThanTwelveMonthsFairValue	215827000	USD
CY2017Q4	us-gaap	Held To Maturity Securities Continuous Unrealized Loss Position Twelve Months Or Longer Fair Value HeldToMaturitySecuritiesContinuousUnrealizedLossPositionTwelveMonthsOrLongerFairValue	0	USD
CY2018Q3	us-gaap	Held To Maturity Securities Continuous Unrealized Loss Position Twelve Months Or Longer Fair Value HeldToMaturitySecuritiesContinuousUnrealizedLossPositionTwelveMonthsOrLongerFairValue	0	USD
CY2018Q3	us-gaap	Held To Maturity Securities Debt Maturities After Five Through Ten Years Fair Value HeldToMaturitySecuritiesDebtMaturitiesAfterFiveThroughTenYearsFairValue	14351000	USD
CY2018Q3	us-gaap	Held To Maturity Securities Debt Maturities After Five Through Ten Years Net Carrying Amount HeldToMaturitySecuritiesDebtMaturitiesAfterFiveThroughTenYearsNetCarryingAmount	14602000	USD
CY2018Q3	us-gaap	Held To Maturity Securities Debt Maturities After One Through Five Years Fair Value HeldToMaturitySecuritiesDebtMaturitiesAfterOneThroughFiveYearsFairValue	10122000	USD
CY2018Q3	us-gaap	Held To Maturity Securities Debt Maturities After One Through Five Years Net Carrying Amount HeldToMaturitySecuritiesDebtMaturitiesAfterOneThroughFiveYearsNetCarryingAmount	10100000	USD
CY2018Q3	us-gaap	Held To Maturity Securities Debt Maturities After Ten Years Fair Value HeldToMaturitySecuritiesDebtMaturitiesAfterTenYearsFairValue	253324000	USD
CY2018Q3	us-gaap	Held To Maturity Securities Debt Maturities After Ten Years Net Carrying Amount HeldToMaturitySecuritiesDebtMaturitiesAfterTenYearsNetCarryingAmount	262388000	USD
CY2018Q3	us-gaap	Held To Maturity Securities Debt Maturities Within One Year Fair Value HeldToMaturitySecuritiesDebtMaturitiesWithinOneYearFairValue	1236000	USD
CY2018Q3	us-gaap	Held To Maturity Securities Debt Maturities Within One Year Net Carrying Amount HeldToMaturitySecuritiesDebtMaturitiesWithinOneYearNetCarryingAmount	1200000	USD
CY2017Q4	us-gaap	Held To Maturity Securities Fair Value HeldToMaturitySecuritiesFairValue	256314000	USD
CY2018Q3	us-gaap	Held To Maturity Securities Fair Value HeldToMaturitySecuritiesFairValue	279033000	USD
CY2017Q3	us-gaap	Impaired Financing Receivable Average Recorded Investment ImpairedFinancingReceivableAverageRecordedInvestment	108033000	USD
	us-gaap	Impaired Financing Receivable Average Recorded Investment ImpairedFinancingReceivableAverageRecordedInvestment	106456000	USD
CY2018Q3	us-gaap	Impaired Financing Receivable Average Recorded Investment ImpairedFinancingReceivableAverageRecordedInvestment	104652000	USD
	us-gaap	Impaired Financing Receivable Average Recorded Investment ImpairedFinancingReceivableAverageRecordedInvestment	100712000	USD
CY2017Q3	us-gaap	Impaired Financing Receivable Interest Income Accrual Method ImpairedFinancingReceivableInterestIncomeAccrualMethod	1040000	USD
	us-gaap	Impaired Financing Receivable Interest Income Accrual Method ImpairedFinancingReceivableInterestIncomeAccrualMethod	3075000	USD
CY2018Q3	us-gaap	Impaired Financing Receivable Interest Income Accrual Method ImpairedFinancingReceivableInterestIncomeAccrualMethod	1114000	USD
	us-gaap	Impaired Financing Receivable Interest Income Accrual Method ImpairedFinancingReceivableInterestIncomeAccrualMethod	3109000	USD
CY2017Q3	us-gaap	Impaired Financing Receivable Interest Income Cash Basis Method ImpairedFinancingReceivableInterestIncomeCashBasisMethod	694000	USD
	us-gaap	Impaired Financing Receivable Interest Income Cash Basis Method ImpairedFinancingReceivableInterestIncomeCashBasisMethod	1372000	USD
CY2018Q3	us-gaap	Impaired Financing Receivable Interest Income Cash Basis Method ImpairedFinancingReceivableInterestIncomeCashBasisMethod	569000	USD
	us-gaap	Impaired Financing Receivable Interest Income Cash Basis Method ImpairedFinancingReceivableInterestIncomeCashBasisMethod	1443000	USD
CY2017Q4	us-gaap	Impaired Financing Receivable Recorded Investment ImpairedFinancingReceivableRecordedInvestment	98554000	USD
CY2018Q3	us-gaap	Impaired Financing Receivable Recorded Investment ImpairedFinancingReceivableRecordedInvestment	125569000	USD
CY2017Q4	us-gaap	Impaired Financing Receivable Related Allowance ImpairedFinancingReceivableRelatedAllowance	5606000	USD
CY2018Q3	us-gaap	Impaired Financing Receivable Related Allowance ImpairedFinancingReceivableRelatedAllowance	1171000	USD
CY2017Q4	us-gaap	Impaired Financing Receivable With No Related Allowance Recorded Investment ImpairedFinancingReceivableWithNoRelatedAllowanceRecordedInvestment	79239000	USD
CY2018Q3	us-gaap	Impaired Financing Receivable With No Related Allowance Recorded Investment ImpairedFinancingReceivableWithNoRelatedAllowanceRecordedInvestment	121968000	USD
CY2017Q4	us-gaap	Impaired Financing Receivable With No Related Allowance Unpaid Principal Balance ImpairedFinancingReceivableWithNoRelatedAllowanceUnpaidPrincipalBalance	156789000	USD
CY2018Q3	us-gaap	Impaired Financing Receivable With No Related Allowance Unpaid Principal Balance ImpairedFinancingReceivableWithNoRelatedAllowanceUnpaidPrincipalBalance	205719000	USD
CY2017Q4	us-gaap	Impaired Financing Receivable With Related Allowance Recorded Investment ImpairedFinancingReceivableWithRelatedAllowanceRecordedInvestment	19315000	USD
CY2018Q3	us-gaap	Impaired Financing Receivable With Related Allowance Recorded Investment ImpairedFinancingReceivableWithRelatedAllowanceRecordedInvestment	3601000	USD
CY2017Q4	us-gaap	Impaired Financing Receivable With Related Allowance Unpaid Principal Balance ImpairedFinancingReceivableWithRelatedAllowanceUnpaidPrincipalBalance	20795000	USD
CY2018Q3	us-gaap	Impaired Financing Receivable With Related Allowance Unpaid Principal Balance ImpairedFinancingReceivableWithRelatedAllowanceUnpaidPrincipalBalance	5883000	USD
CY2017Q3	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	117743000	USD
	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	327498000	USD
CY2018Q3	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	118615000	USD
	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	370333000	USD
CY2017Q3	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	34899000	USD
	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	91352000	USD
CY2018Q3	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	7492000	USD
	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	53631000	USD
	us-gaap	Income Taxes Paid IncomeTaxesPaid	79522000	USD
	us-gaap	Income Taxes Paid IncomeTaxesPaid	14658000	USD
	us-gaap	Increase Decrease In Deferred Income Taxes IncreaseDecreaseInDeferredIncomeTaxes	37700000	USD
	us-gaap	Increase Decrease In Deposits IncreaseDecreaseInDeposits	2354920000	USD
	us-gaap	Increase Decrease In Deposits IncreaseDecreaseInDeposits	1936048000	USD
	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	12958000	USD
	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	-17419000	USD
	us-gaap	Increase Decrease In Other Operating Liabilities IncreaseDecreaseInOtherOperatingLiabilities	-7214000	USD
	us-gaap	Increase Decrease In Other Operating Liabilities IncreaseDecreaseInOtherOperatingLiabilities	3324000	USD
CY2017Q3	us-gaap	Information Technology And Data Processing InformationTechnologyAndDataProcessing	4524000	USD
	us-gaap	Information Technology And Data Processing InformationTechnologyAndDataProcessing	14163000	USD
CY2018Q3	us-gaap	Information Technology And Data Processing InformationTechnologyAndDataProcessing	5895000	USD
	us-gaap	Information Technology And Data Processing InformationTechnologyAndDataProcessing	16688000	USD
CY2017Q4	us-gaap	Intangible Assets Net Excluding Goodwill IntangibleAssetsNetExcludingGoodwill	10853000	USD
CY2018Q3	us-gaap	Intangible Assets Net Excluding Goodwill IntangibleAssetsNetExcludingGoodwill	9658000	USD
CY2017Q4	us-gaap	Intangible Assets Net Including Goodwill IntangibleAssetsNetIncludingGoodwill	300700000	USD
CY2018Q3	us-gaap	Intangible Assets Net Including Goodwill IntangibleAssetsNetIncludingGoodwill	299500000	USD
CY2017Q3	us-gaap	Interest And Dividend Income Operating InterestAndDividendIncomeOperating	217836000	USD
	us-gaap	Interest And Dividend Income Operating InterestAndDividendIncomeOperating	617054000	USD
CY2018Q3	us-gaap	Interest And Dividend Income Operating InterestAndDividendIncomeOperating	265216000	USD
	us-gaap	Interest And Dividend Income Operating InterestAndDividendIncomeOperating	751515000	USD
	us-gaap	Interest And Dividend Income Securities InterestAndDividendIncomeSecurities	9000	USD
CY2017Q3	us-gaap	Interest And Fee Income Loans And Leases InterestAndFeeIncomeLoansAndLeases	191096000	USD
	us-gaap	Interest And Fee Income Loans And Leases InterestAndFeeIncomeLoansAndLeases	547306000	USD
CY2018Q3	us-gaap	Interest And Fee Income Loans And Leases InterestAndFeeIncomeLoansAndLeases	234709000	USD
	us-gaap	Interest And Fee Income Loans And Leases InterestAndFeeIncomeLoansAndLeases	662703000	USD
CY2017Q4	us-gaap	Interest Bearing Deposit Liabilities InterestBearingDepositLiabilities	9538570000	USD
CY2018Q3	us-gaap	Interest Bearing Deposit Liabilities InterestBearingDepositLiabilities	10893865000	USD
CY2017Q4	us-gaap	Interest Bearing Deposits In Banks InterestBearingDepositsInBanks	235577000	USD
CY2018Q3	us-gaap	Interest Bearing Deposits In Banks InterestBearingDepositsInBanks	482019000	USD
CY2017Q3	us-gaap	Interest Expense InterestExpense	16253000	USD
	us-gaap	Interest Expense InterestExpense	43419000	USD
CY2018Q3	us-gaap	Interest Expense InterestExpense	31178000	USD
	us-gaap	Interest Expense InterestExpense	79149000	USD
CY2017Q3	us-gaap	Interest Expense Borrowings InterestExpenseBorrowings	84000	USD
	us-gaap	Interest Expense Borrowings InterestExpenseBorrowings	333000	USD
CY2018Q3	us-gaap	Interest Expense Borrowings InterestExpenseBorrowings	90000	USD
	us-gaap	Interest Expense Borrowings InterestExpenseBorrowings	3352000	USD
	us-gaap	Interest Expense Debt InterestExpenseDebt	2376000	USD
	us-gaap	Payments To Acquire Restricted Investments PaymentsToAcquireRestrictedInvestments	208000	USD
CY2017Q3	us-gaap	Interest Expense Deposits InterestExpenseDeposits	11449000	USD
	us-gaap	Interest Expense Deposits InterestExpenseDeposits	29506000	USD
CY2018Q3	us-gaap	Interest Expense Deposits InterestExpenseDeposits	25266000	USD
	us-gaap	Interest Expense Deposits InterestExpenseDeposits	59288000	USD
CY2017Q3	us-gaap	Interest Expense Securities Sold Under Agreements To Repurchase InterestExpenseSecuritiesSoldUnderAgreementsToRepurchase	12000	USD
	us-gaap	Interest Expense Securities Sold Under Agreements To Repurchase InterestExpenseSecuritiesSoldUnderAgreementsToRepurchase	41000	USD
CY2018Q3	us-gaap	Interest Expense Securities Sold Under Agreements To Repurchase InterestExpenseSecuritiesSoldUnderAgreementsToRepurchase	28000	USD
	us-gaap	Interest Expense Securities Sold Under Agreements To Repurchase InterestExpenseSecuritiesSoldUnderAgreementsToRepurchase	51000	USD
CY2017Q3	us-gaap	Interest Expense Subordinated Notes And Debentures InterestExpenseSubordinatedNotesAndDebentures	4708000	USD
	us-gaap	Interest Expense Subordinated Notes And Debentures InterestExpenseSubordinatedNotesAndDebentures	13539000	USD
CY2018Q3	us-gaap	Interest Expense Subordinated Notes And Debentures InterestExpenseSubordinatedNotesAndDebentures	5794000	USD
	us-gaap	Interest Expense Subordinated Notes And Debentures InterestExpenseSubordinatedNotesAndDebentures	16458000	USD
CY2017Q3	us-gaap	Interest Income Expense After Provision For Loan Loss InterestIncomeExpenseAfterProvisionForLoanLoss	196583000	USD
	us-gaap	Interest Income Expense After Provision For Loan Loss InterestIncomeExpenseAfterProvisionForLoanLoss	561385000	USD
CY2018Q3	us-gaap	Interest Income Expense After Provision For Loan Loss InterestIncomeExpenseAfterProvisionForLoanLoss	228038000	USD
	us-gaap	Interest Income Expense After Provision For Loan Loss InterestIncomeExpenseAfterProvisionForLoanLoss	655366000	USD
CY2017Q3	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	201583000	USD
	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	573635000	USD
CY2018Q3	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	234038000	USD
	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	672366000	USD
CY2017Q3	us-gaap	Interest Income Securities Taxable InterestIncomeSecuritiesTaxable	22152000	USD
	us-gaap	Interest Income Securities Taxable InterestIncomeSecuritiesTaxable	58010000	USD
CY2018Q3	us-gaap	Interest Income Securities Taxable InterestIncomeSecuritiesTaxable	26100000	USD
	us-gaap	Interest Income Securities Taxable InterestIncomeSecuritiesTaxable	77847000	USD
	us-gaap	Interest Paid InterestPaid	47815000	USD
	us-gaap	Interest Paid InterestPaid	81247000	USD
CY2018Q3	us-gaap	Junior Subordinated Debenture Owed To Unconsolidated Subsidiary Trust JuniorSubordinatedDebentureOwedToUnconsolidatedSubsidiaryTrust	68300000	USD
CY2017Q3	us-gaap	Labor And Related Expense LaborAndRelatedExpense	52747000	USD
	us-gaap	Labor And Related Expense LaborAndRelatedExpense	156640000	USD
CY2018Q3	us-gaap	Labor And Related Expense LaborAndRelatedExpense	64762000	USD
	us-gaap	Labor And Related Expense LaborAndRelatedExpense	188680000	USD
CY2017Q4	us-gaap	Liabilities Liabilities	18099387000	USD
CY2018Q3	us-gaap	Liabilities Liabilities	19687754000	USD
CY2017Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	20329100000	USD
CY2017Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	20329085000	USD
CY2018Q3	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	22176147000	USD
CY2018Q3	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	22176100000	USD
	us-gaap	Line Of Credit Facility Expiration Period LineOfCreditFacilityExpirationPeriod	P1Y
CY2017Q4	us-gaap	Lines Of Credit Current LinesOfCreditCurrent	0	USD
CY2018Q3	us-gaap	Lines Of Credit Current LinesOfCreditCurrent	0	USD
CY2017Q4	us-gaap	Loans And Leases Receivable Allowance LoansAndLeasesReceivableAllowance	140050000	USD
CY2018Q3	us-gaap	Loans And Leases Receivable Allowance LoansAndLeasesReceivableAllowance	150011000	USD
CY2017Q4	us-gaap	Loans And Leases Receivable Deferred Income LoansAndLeasesReceivableDeferredIncome	25300000	USD
CY2018Q3	us-gaap	Loans And Leases Receivable Deferred Income LoansAndLeasesReceivableDeferredIncome	31000000	USD
	us-gaap	Loans And Leases Receivable Gain Loss On Sales Net LoansAndLeasesReceivableGainLossOnSalesNet	100000	USD
CY2018Q3	us-gaap	Loans And Leases Receivable Gain Loss On Sales Net LoansAndLeasesReceivableGainLossOnSalesNet	1000000	USD
	us-gaap	Loans And Leases Receivable Gain Loss On Sales Net LoansAndLeasesReceivableGainLossOnSalesNet	2400000	USD
CY2017Q4	us-gaap	Loans And Leases Receivable Gross Carrying Amount LoansAndLeasesReceivableGrossCarryingAmount	15093935000	USD
CY2018Q3	us-gaap	Loans And Leases Receivable Gross Carrying Amount LoansAndLeasesReceivableGrossCarryingAmount	16732765000	USD
CY2017Q3	us-gaap	Loans And Leases Receivable Impaired Interest Lost On Nonaccrual Loans LoansAndLeasesReceivableImpairedInterestLostOnNonaccrualLoans	700000	USD
CY2018Q3	us-gaap	Loans And Leases Receivable Impaired Interest Lost On Nonaccrual Loans LoansAndLeasesReceivableImpairedInterestLostOnNonaccrualLoans	600000	USD
	us-gaap	Loans And Leases Receivable Impaired Interest Lost On Nonaccrual Loans LoansAndLeasesReceivableImpairedInterestLostOnNonaccrualLoans	1800000	USD
CY2017Q4	us-gaap	Loans And Leases Receivable Net Of Deferred Income LoansAndLeasesReceivableNetOfDeferredIncome	15093935000	USD
CY2018Q3	us-gaap	Loans And Leases Receivable Net Of Deferred Income LoansAndLeasesReceivableNetOfDeferredIncome	16732765000	USD
CY2017Q4	us-gaap	Loans And Leases Receivable Net Reported Amount LoansAndLeasesReceivableNetReportedAmount	14953885000	USD
CY2018Q3	us-gaap	Loans And Leases Receivable Net Reported Amount LoansAndLeasesReceivableNetReportedAmount	16582754000	USD
CY2017Q3	us-gaap	Loss On Sale Of Investments LossOnSaleOfInvestments	149000	USD
	us-gaap	Loss On Sale Of Investments LossOnSaleOfInvestments	274000	USD
CY2018Q3	us-gaap	Loss On Sale Of Investments LossOnSaleOfInvestments	7232000	USD
	us-gaap	Loss On Sale Of Investments LossOnSaleOfInvestments	7232000	USD
CY2017Q3	us-gaap	Marketing Expense MarketingExpense	776000	USD
	us-gaap	Marketing Expense MarketingExpense	2628000	USD
CY2018Q3	us-gaap	Marketing Expense MarketingExpense	687000	USD
CY2017Q4	us-gaap	Money Market Funds At Carrying Value MoneyMarketFundsAtCarryingValue	0	USD
CY2018Q3	us-gaap	Money Market Funds At Carrying Value MoneyMarketFundsAtCarryingValue	5000	USD
CY2017Q3	us-gaap	Mortgage Loans On Real Estate Foreclosures MortgageLoansOnRealEstateForeclosures	430000	USD
	us-gaap	Mortgage Loans On Real Estate Foreclosures MortgageLoansOnRealEstateForeclosures	1812000	USD
	us-gaap	Mortgage Loans On Real Estate Foreclosures MortgageLoansOnRealEstateForeclosures	5744000	USD
	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	2246403000	USD
	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	1529673000	USD
	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-2151623000	USD
	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-1642157000	USD
	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	271083000	USD
	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	396280000	USD
CY2017Q3	us-gaap	Net Income Loss NetIncomeLoss	82844000	USD
	us-gaap	Net Income Loss NetIncomeLoss	236146000	USD
CY2018Q3	us-gaap	Net Income Loss NetIncomeLoss	111123000	USD
	us-gaap	Net Income Loss NetIncomeLoss	316702000	USD
CY2017Q3	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	82844000	USD
	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	236146000	USD
CY2018Q3	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	111123000	USD
	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	316702000	USD
	us-gaap	Noncash Contribution Expense NoncashContributionExpense	0	USD
CY2018Q3	us-gaap	Noncash Contribution Expense NoncashContributionExpense	6895000	USD
	us-gaap	Noncash Contribution Expense NoncashContributionExpense	6895000	USD
CY2017Q4	us-gaap	Noninterest Bearing Deposit Liabilities NoninterestBearingDepositLiabilities	7433962000	USD
CY2018Q3	us-gaap	Noninterest Bearing Deposit Liabilities NoninterestBearingDepositLiabilities	8014715000	USD
CY2017Q3	us-gaap	Noninterest Expense NoninterestExpense	89296000	USD
	us-gaap	Noninterest Expense NoninterestExpense	265543000	USD
CY2018Q3	us-gaap	Noninterest Expense NoninterestExpense	113841000	USD
	us-gaap	Noninterest Expense NoninterestExpense	314538000	USD
CY2017Q3	us-gaap	Noninterest Income NoninterestIncome	10456000	USD
	us-gaap	Noninterest Income NoninterestIncome	31656000	USD
CY2018Q3	us-gaap	Noninterest Income NoninterestIncome	4418000	USD
	us-gaap	Noninterest Income NoninterestIncome	29505000	USD
CY2017Q3	us-gaap	Noninterest Income Other Operating Income NoninterestIncomeOtherOperatingIncome	585000	USD
	us-gaap	Noninterest Income Other Operating Income NoninterestIncomeOtherOperatingIncome	1795000	USD
CY2018Q3	us-gaap	Noninterest Income Other Operating Income NoninterestIncomeOtherOperatingIncome	635000	USD
	us-gaap	Noninterest Income Other Operating Income NoninterestIncomeOtherOperatingIncome	1579000	USD
CY2017Q4	us-gaap	Notes Receivable Net NotesReceivableNet	15093935000	USD
CY2018Q3	us-gaap	Notes Receivable Net NotesReceivableNet	16732765000	USD
CY2017Q3	us-gaap	Number Of Real Estate Properties NumberOfRealEstateProperties	20	Property
CY2017Q4	us-gaap	Number Of Real Estate Properties NumberOfRealEstateProperties	19	Property
CY2018Q3	us-gaap	Number Of Real Estate Properties NumberOfRealEstateProperties	12	Property
CY2017Q3	us-gaap	Occupancy Net OccupancyNet	7507000	USD
	us-gaap	Occupancy Net OccupancyNet	21328000	USD
CY2018Q3	us-gaap	Occupancy Net OccupancyNet	7406000	USD
	us-gaap	Occupancy Net OccupancyNet	21671000	USD
CY2017Q3	us-gaap	Operating Leases Rent Expense Net OperatingLeasesRentExpenseNet	2800000	USD
	us-gaap	Operating Leases Rent Expense Net OperatingLeasesRentExpenseNet	8200000	USD
CY2018Q3	us-gaap	Operating Leases Rent Expense Net OperatingLeasesRentExpenseNet	2800000	USD
	us-gaap	Operating Leases Rent Expense Net OperatingLeasesRentExpenseNet	8100000	USD
CY2017Q4	us-gaap	Operating Loss Carryforwards Valuation Allowance OperatingLossCarryforwardsValuationAllowance	0	USD
CY2018Q3	us-gaap	Operating Loss Carryforwards Valuation Allowance OperatingLossCarryforwardsValuationAllowance	0	USD
CY2017Q4	us-gaap	Other Assets OtherAssets	249504000	USD
CY2018Q3	us-gaap	Other Assets OtherAssets	312618000	USD
CY2017Q4	us-gaap	Other Borrowings OtherBorrowings	390000000	USD
CY2018Q3	us-gaap	Other Borrowings OtherBorrowings	0	USD
	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax	15386000	USD
	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax	-66311000	USD
CY2017Q3	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesTax	-689000	USD
	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesTax	-9894000	USD
CY2018Q3	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesTax	7337000	USD
	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesTax	23438000	USD
CY2017Q3	us-gaap	Other Comprehensive Income Loss Before Reclassifications Net Of Tax OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax	1871000	USD
	us-gaap	Other Comprehensive Income Loss Before Reclassifications Net Of Tax OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax	13420000	USD
CY2018Q3	us-gaap	Other Comprehensive Income Loss Before Reclassifications Net Of Tax OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax	-24502000	USD
	us-gaap	Other Comprehensive Income Loss Before Reclassifications Net Of Tax OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax	-71614000	USD
CY2017Q3	us-gaap	Other Comprehensive Income Loss Financial Liability Fair Value Option Unrealized Gain Loss Arising During Period After Tax OtherComprehensiveIncomeLossFinancialLiabilityFairValueOptionUnrealizedGainLossArisingDuringPeriodAfterTax	641000	USD
	us-gaap	Other Comprehensive Income Loss Financial Liability Fair Value Option Unrealized Gain Loss Arising During Period After Tax OtherComprehensiveIncomeLossFinancialLiabilityFairValueOptionUnrealizedGainLossArisingDuringPeriodAfterTax	-2677000	USD
CY2018Q3	us-gaap	Other Comprehensive Income Loss Financial Liability Fair Value Option Unrealized Gain Loss Arising During Period After Tax OtherComprehensiveIncomeLossFinancialLiabilityFairValueOptionUnrealizedGainLossArisingDuringPeriodAfterTax	-2028000	USD
	us-gaap	Other Comprehensive Income Loss Financial Liability Fair Value Option Unrealized Gain Loss Arising During Period After Tax OtherComprehensiveIncomeLossFinancialLiabilityFairValueOptionUnrealizedGainLossArisingDuringPeriodAfterTax	186000	USD
CY2017Q3	us-gaap	Other Comprehensive Income Loss Financial Liability Fair Value Option Unrealized Gain Loss Arising During Period Tax OtherComprehensiveIncomeLossFinancialLiabilityFairValueOptionUnrealizedGainLossArisingDuringPeriodTax	-394000	USD
	us-gaap	Other Comprehensive Income Loss Financial Liability Fair Value Option Unrealized Gain Loss Arising During Period Tax OtherComprehensiveIncomeLossFinancialLiabilityFairValueOptionUnrealizedGainLossArisingDuringPeriodTax	1649000	USD
CY2018Q3	us-gaap	Other Comprehensive Income Loss Financial Liability Fair Value Option Unrealized Gain Loss Arising During Period Tax OtherComprehensiveIncomeLossFinancialLiabilityFairValueOptionUnrealizedGainLossArisingDuringPeriodTax	661000	USD
	us-gaap	Other Comprehensive Income Loss Financial Liability Fair Value Option Unrealized Gain Loss Arising During Period Tax OtherComprehensiveIncomeLossFinancialLiabilityFairValueOptionUnrealizedGainLossArisingDuringPeriodTax	-61000	USD
CY2017Q3	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	1674000	USD
	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	12859000	USD
CY2018Q3	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-19048000	USD
	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-66160000	USD
CY2017Q3	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Net Of Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax	-114000	USD
	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Net Of Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax	-150000	USD
CY2018Q3	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Net Of Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax	12000	USD
	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Net Of Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax	35000	USD
CY2017Q3	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansTax	-71000	USD
	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansTax	-93000	USD
CY2018Q3	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansTax	4000	USD
	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansTax	10000	USD
CY2017Q3	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax	197000	USD
	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax	561000	USD
CY2018Q3	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax	-5454000	USD
	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax	-5454000	USD
CY2017Q3	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesTax	122000	USD
	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesTax	346000	USD
CY2018Q3	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesTax	-1778000	USD
	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesTax	-1778000	USD
CY2017Q3	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax	1116000	USD
	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax	15947000	USD
CY2018Q3	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax	-22462000	USD
	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax	-71765000	USD
CY2017Q4	us-gaap	Other Foreclosed Assets OtherForeclosedAssets	28500000	USD
CY2018Q3	us-gaap	Other Foreclosed Assets OtherForeclosedAssets	20000000	USD
CY2017Q3	us-gaap	Other Interest And Dividend Income OtherInterestAndDividendIncome	2583000	USD
	us-gaap	Other Interest And Dividend Income OtherInterestAndDividendIncome	5584000	USD
CY2018Q3	us-gaap	Other Interest And Dividend Income OtherInterestAndDividendIncome	2576000	USD
	us-gaap	Other Interest And Dividend Income OtherInterestAndDividendIncome	5459000	USD
CY2017Q4	us-gaap	Other Liabilities OtherLiabilities	333933000	USD
CY2018Q3	us-gaap	Other Liabilities OtherLiabilities	399123000	USD
CY2017Q3	us-gaap	Other Noninterest Expense OtherNoninterestExpense	6839000	USD
	us-gaap	Other Noninterest Expense OtherNoninterestExpense	17561000	USD
CY2018Q3	us-gaap	Other Noninterest Expense OtherNoninterestExpense	14400000	USD
	us-gaap	Other Noninterest Expense OtherNoninterestExpense	29481000	USD
	us-gaap	Other Than Temporary Impairment Losses Investments Portion In Other Comprehensive Income Loss Before Tax Including Portion Attributable To Noncontrolling Interest OtherThanTemporaryImpairmentLossesInvestmentsPortionInOtherComprehensiveIncomeLossBeforeTaxIncludingPortionAttributableToNoncontrollingInterest	0	USD
	us-gaap	Other Than Temporary Impairment Losses Investments Portion In Other Comprehensive Income Loss Before Tax Including Portion Attributable To Noncontrolling Interest OtherThanTemporaryImpairmentLossesInvestmentsPortionInOtherComprehensiveIncomeLossBeforeTaxIncludingPortionAttributableToNoncontrollingInterest	0	USD
	us-gaap	Payments For Proceeds From Loans And Leases PaymentsForProceedsFromLoansAndLeases	1179494000	USD
	us-gaap	Payments For Proceeds From Loans And Leases PaymentsForProceedsFromLoansAndLeases	1591733000	USD
	us-gaap	Payments For Proceeds From Productive Assets PaymentsForProceedsFromProductiveAssets	7644000	USD
	us-gaap	Payments For Proceeds From Productive Assets PaymentsForProceedsFromProductiveAssets	8319000	USD
	us-gaap	Payments To Acquire Available For Sale Securities PaymentsToAcquireAvailableForSaleSecurities	1361908000	USD
	us-gaap	Payments To Acquire Available For Sale Securities PaymentsToAcquireAvailableForSaleSecurities	251413000	USD
	us-gaap	Payments To Acquire Held To Maturity Securities PaymentsToAcquireHeldToMaturitySecurities	62489000	USD
	us-gaap	Payments To Acquire Held To Maturity Securities PaymentsToAcquireHeldToMaturitySecurities	34275000	USD
	us-gaap	Payments To Acquire Restricted Investments PaymentsToAcquireRestrictedInvestments	430000	USD
CY2017Q4	us-gaap	Pledged Financial Instruments Not Separately Reported Other Debt Securities Available For Sale Or Held For Investment PledgedFinancialInstrumentsNotSeparatelyReportedOtherDebtSecuritiesAvailableForSaleOrHeldForInvestment	913700000	USD
CY2018Q3	us-gaap	Pledged Financial Instruments Not Separately Reported Other Debt Securities Available For Sale Or Held For Investment PledgedFinancialInstrumentsNotSeparatelyReportedOtherDebtSecuritiesAvailableForSaleOrHeldForInvestment	814100000	USD
	us-gaap	Proceeds From Life Insurance Policies ProceedsFromLifeInsurancePolicies	607000	USD
	us-gaap	Proceeds From Life Insurance Policies ProceedsFromLifeInsurancePolicies	1655000	USD
	us-gaap	Proceeds From Maturities Prepayments And Calls Of Available For Sale Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities	370231000	USD
	us-gaap	Proceeds From Maturities Prepayments And Calls Of Available For Sale Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities	329958000	USD
	us-gaap	Proceeds From Repayments Of Debt ProceedsFromRepaymentsOfDebt	-95661000	USD
	us-gaap	Proceeds From Repayments Of Debt ProceedsFromRepaymentsOfDebt	-395047000	USD
	us-gaap	Proceeds From Sale And Maturity Of Held To Maturity Securities ProceedsFromSaleAndMaturityOfHeldToMaturitySecurities	0	USD
	us-gaap	Proceeds From Sale And Maturity Of Held To Maturity Securities ProceedsFromSaleAndMaturityOfHeldToMaturitySecurities	754000	USD
	us-gaap	Proceeds From Sale Of Available For Sale Securities ProceedsFromSaleOfAvailableForSaleSecurities	87853000	USD
	us-gaap	Proceeds From Sale Of Available For Sale Securities ProceedsFromSaleOfAvailableForSaleSecurities	44308000	USD
CY2017Q3	us-gaap	Proceeds From Sale Of Foreclosed Assets ProceedsFromSaleOfForeclosedAssets	2161000	USD
	us-gaap	Proceeds From Sale Of Foreclosed Assets ProceedsFromSaleOfForeclosedAssets	20748000	USD
CY2018Q3	us-gaap	Proceeds From Sale Of Foreclosed Assets ProceedsFromSaleOfForeclosedAssets	692000	USD
	us-gaap	Proceeds From Sale Of Foreclosed Assets ProceedsFromSaleOfForeclosedAssets	8793000	USD
	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	786000	USD
	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	534000	USD
CY2017Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	118719000	USD
CY2018Q3	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	119211000	USD
CY2017Q3	us-gaap	Provision For Loan Lease And Other Losses ProvisionForLoanLeaseAndOtherLosses	5000000	USD
	us-gaap	Provision For Loan Lease And Other Losses ProvisionForLoanLeaseAndOtherLosses	12250000	USD
CY2018Q3	us-gaap	Provision For Loan Lease And Other Losses ProvisionForLoanLeaseAndOtherLosses	6000000	USD
	us-gaap	Provision For Loan Lease And Other Losses ProvisionForLoanLeaseAndOtherLosses	17000000	USD
CY2016Q4	us-gaap	Real Estate Owned Valuation Allowance RealEstateOwnedValuationAllowance	6323000	USD
CY2017Q2	us-gaap	Real Estate Owned Valuation Allowance RealEstateOwnedValuationAllowance	4049000	USD
CY2017Q3	us-gaap	Real Estate Owned Valuation Allowance RealEstateOwnedValuationAllowance	4062000	USD
CY2017Q4	us-gaap	Real Estate Owned Valuation Allowance RealEstateOwnedValuationAllowance	4012000	USD
CY2018Q2	us-gaap	Real Estate Owned Valuation Allowance RealEstateOwnedValuationAllowance	3604000	USD
CY2018Q3	us-gaap	Real Estate Owned Valuation Allowance RealEstateOwnedValuationAllowance	3203000	USD
CY2017Q3	us-gaap	Realized Gain Loss On Marketable Securities Cost Method Investments And Other Investments RealizedGainLossOnMarketableSecuritiesCostMethodInvestmentsAndOtherInvestments	319000	USD
	us-gaap	Realized Gain Loss On Marketable Securities Cost Method Investments And Other Investments RealizedGainLossOnMarketableSecuritiesCostMethodInvestmentsAndOtherInvestments	907000	USD
CY2018Q3	us-gaap	Realized Gain Loss On Marketable Securities Cost Method Investments And Other Investments RealizedGainLossOnMarketableSecuritiesCostMethodInvestmentsAndOtherInvestments	-7232000	USD
	us-gaap	Realized Gain Loss On Marketable Securities Cost Method Investments And Other Investments RealizedGainLossOnMarketableSecuritiesCostMethodInvestmentsAndOtherInvestments	-7232000	USD
CY2017Q4	us-gaap	Receivable With Imputed Interest Discount ReceivableWithImputedInterestDiscount	8500000	USD
CY2018Q3	us-gaap	Receivable With Imputed Interest Discount ReceivableWithImputedInterestDiscount	3300000	USD
CY2017Q3	us-gaap	Reclassification From Accumulated Other Comprehensive Income Current Period Net Of Tax ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax	197000	USD
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CY2018Q3	us-gaap	Reclassification From Accumulated Other Comprehensive Income Current Period Net Of Tax ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax	-5454000	USD
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CY2017Q4	us-gaap	Restricted Investments RestrictedInvestments	65785000	USD
CY2018Q3	us-gaap	Restricted Investments RestrictedInvestments	65993000	USD
	us-gaap	Restricted Stock Award Forfeitures RestrictedStockAwardForfeitures	13642000	USD
	us-gaap	Restricted Stock Award Forfeitures RestrictedStockAwardForfeitures	11862000	USD
CY2017Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	848466000	USD
CY2018Q3	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	1166226000	USD
CY2017Q4	us-gaap	Securities Sold Under Agreements To Repurchase SecuritiesSoldUnderAgreementsToRepurchase	26017000	USD
CY2018Q3	us-gaap	Securities Sold Under Agreements To Repurchase SecuritiesSoldUnderAgreementsToRepurchase	20969000	USD
	us-gaap	Share Based Compensation ShareBasedCompensation	17909000	USD
	us-gaap	Share Based Compensation ShareBasedCompensation	19481000	USD
CY2017Q4	us-gaap	Short Term Borrowings ShortTermBorrowings	390000000	USD
CY2018Q3	us-gaap	Short Term Borrowings ShortTermBorrowings	0	USD
	us-gaap	Stock Issued During Period Value Restricted Stock Award Net Of Forfeitures StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures	17909000	USD
	us-gaap	Stock Issued During Period Value Restricted Stock Award Net Of Forfeitures StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures	19481000	USD
	us-gaap	Stock Issued During Period Value Stock Options Exercised StockIssuedDuringPeriodValueStockOptionsExercised	786000	USD
	us-gaap	Stock Issued During Period Value Stock Options Exercised StockIssuedDuringPeriodValueStockOptionsExercised	534000	USD
CY2016Q4	us-gaap	Stockholders Equity StockholdersEquity	1891529000	USD
CY2017Q3	us-gaap	Stockholders Equity StockholdersEquity	2146125000	USD
CY2017Q4	us-gaap	Stockholders Equity StockholdersEquity	2229698000	USD
CY2017Q4	us-gaap	Stockholders Equity StockholdersEquity	2229700000	USD
CY2018Q3	us-gaap	Stockholders Equity StockholdersEquity	2488400000	USD
CY2018Q3	us-gaap	Stockholders Equity StockholdersEquity	2488393000	USD
CY2017Q1	us-gaap	Stockholders Equity StockholdersEquity	1892067000	USD
CY2018Q1	us-gaap	Stockholders Equity StockholdersEquity	2229698000	USD
CY2017Q4	us-gaap	Subordinated Debt SubordinatedDebt	308600000	USD
CY2018Q3	us-gaap	Subordinated Debt SubordinatedDebt	290800000	USD
CY2017Q3	us-gaap	Treasury Stock Acquired Average Cost Per Share TreasuryStockAcquiredAverageCostPerShare	51.82
	us-gaap	Treasury Stock Acquired Average Cost Per Share TreasuryStockAcquiredAverageCostPerShare	51.10
CY2018Q3	us-gaap	Treasury Stock Acquired Average Cost Per Share TreasuryStockAcquiredAverageCostPerShare	57.81
	us-gaap	Treasury Stock Acquired Average Cost Per Share TreasuryStockAcquiredAverageCostPerShare	58.91
CY2017Q3	us-gaap	Treasury Stock Shares Acquired TreasuryStockSharesAcquired	64705	shares
	us-gaap	Treasury Stock Shares Acquired TreasuryStockSharesAcquired	266883	shares
CY2018Q3	us-gaap	Treasury Stock Shares Acquired TreasuryStockSharesAcquired	18402	shares
	us-gaap	Treasury Stock Shares Acquired TreasuryStockSharesAcquired	201354	shares
CY2017Q4	us-gaap	Treasury Stock Value TreasuryStockValue	40173000	USD
CY2018Q3	us-gaap	Treasury Stock Value TreasuryStockValue	52035000	USD
CY2017Q3	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	104942000	shares
	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	104941000	shares
CY2018Q3	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	105448000	shares
	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	105398000	shares
CY2017Q3	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	104221000	shares
	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	104124000	shares
CY2018Q3	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	104768000	shares
	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	104664000	shares
	wal	Accretion And Amortization Fair Market Value Adjustments Relating To Acquisitionsof Loans AccretionAndAmortizationFairMarketValueAdjustmentsRelatingToAcquisitionsofLoans	20994000	USD
	wal	Accretion And Amortization Fair Market Value Adjustments Relating To Acquisitionsof Loans AccretionAndAmortizationFairMarketValueAdjustmentsRelatingToAcquisitionsofLoans	14099000	USD
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	wal	Accretionand Amortization Fair Market Value Adjustments Relatingto Acquisitionsof Other Assetsand Liabilities AccretionandAmortizationFairMarketValueAdjustmentsRelatingtoAcquisitionsofOtherAssetsandLiabilities	-1427000	USD
CY2018Q3	wal	Additional Collateral Amount AdditionalCollateralAmount	52400000	USD
CY2017Q4	wal	Borrowingsand Qualifying Debt BorrowingsandQualifyingDebt	766900000	USD
CY2018Q3	wal	Borrowingsand Qualifying Debt BorrowingsandQualifyingDebt	359100000	USD
CY2017Q3	wal	Card Income CardIncome	1509000	USD
	wal	Card Income CardIncome	4517000	USD
CY2018Q3	wal	Card Income CardIncome	2138000	USD
	wal	Card Income CardIncome	6143000	USD
CY2017Q3	wal	Cardexpense Cardexpense	966000	USD
	wal	Cardexpense Cardexpense	2558000	USD
CY2018Q3	wal	Cardexpense Cardexpense	1282000	USD
	wal	Cardexpense Cardexpense	3305000	USD
CY2017Q4	wal	Cash Cash Equivalentsand Investment Securities CashCashEquivalentsandInvestmentSecurities	4237100000	USD
CY2018Q3	wal	Cash Cash Equivalentsand Investment Securities CashCashEquivalentsandInvestmentSecurities	4334200000	USD
	wal	Changein Unfunded Obligations Non Cash ChangeinUnfundedObligationsNonCash	140217000	USD
	wal	Changein Unfunded Obligations Non Cash ChangeinUnfundedObligationsNonCash	82270000	USD
CY2017Q3	wal	Collateral Netted Against Derivative Liabilities CollateralNettedAgainstDerivativeLiabilities	59300000	USD
CY2017Q4	wal	Collateral Netted Against Derivative Liabilities CollateralNettedAgainstDerivativeLiabilities	53600000	USD
CY2018Q3	wal	Collateral Netted Against Derivative Liabilities CollateralNettedAgainstDerivativeLiabilities	34700000	USD
CY2017Q4	wal	Credit Markon Acquired Loans CreditMarkonAcquiredLoans	27000000	USD
CY2018Q3	wal	Credit Markon Acquired Loans CreditMarkonAcquiredLoans	17200000	USD
CY2017Q3	wal	Debitandcreditcardinterchangefees Debitandcreditcardinterchangefees	1250000	USD
	wal	Debitandcreditcardinterchangefees Debitandcreditcardinterchangefees	3714000	USD
CY2018Q3	wal	Debitandcreditcardinterchangefees Debitandcreditcardinterchangefees	1834000	USD
	wal	Debitandcreditcardinterchangefees Debitandcreditcardinterchangefees	4990000	USD
CY2017Q4	wal	Derivative Amountof Hedged Item Loans DerivativeAmountofHedgedItemLoans	699452000	USD
CY2018Q3	wal	Derivative Amountof Hedged Item Loans DerivativeAmountofHedgedItemLoans	635184000	USD
CY2017Q3	wal	Dilutive Effect Of Stock Options Restricted Stock And Equity Settled Awards DilutiveEffectOfStockOptionsRestrictedStockAndEquitySettledAwards	721000	shares
	wal	Dilutive Effect Of Stock Options Restricted Stock And Equity Settled Awards DilutiveEffectOfStockOptionsRestrictedStockAndEquitySettledAwards	817000	shares
CY2018Q3	wal	Dilutive Effect Of Stock Options Restricted Stock And Equity Settled Awards DilutiveEffectOfStockOptionsRestrictedStockAndEquitySettledAwards	680000	shares
	wal	Dilutive Effect Of Stock Options Restricted Stock And Equity Settled Awards DilutiveEffectOfStockOptionsRestrictedStockAndEquitySettledAwards	734000	shares
CY2018Q3	wal	Equitysecurities Fvni Accumulated Gross Unrealized Gain Before Tax EquitysecuritiesFVNIAccumulatedGrossUnrealizedGainBeforeTax	880000	USD
CY2018Q3	wal	Equitysecurities Fvni Accumulated Gross Unrealized Loss Before Tax EquitysecuritiesFVNIAccumulatedGrossUnrealizedLossBeforeTax	3343000	USD
CY2017Q4	wal	Excess Funds Providedby Usedin Segment Basis ExcessFundsProvidedbyUsedinSegmentBasis	0	USD
CY2018Q3	wal	Excess Funds Providedby Usedin Segment Basis ExcessFundsProvidedbyUsedinSegmentBasis	0	USD
CY2017Q4	wal	Fair Value Hedge Assets Loans FairValueHedgeAssetsLoans	41919000	USD
CY2018Q3	wal	Fair Value Hedge Assets Loans FairValueHedgeAssetsLoans	1997000	USD
CY2017Q4	wal	Financing Receivable Unpaid Principal Balance FinancingReceivableUnpaidPrincipalBalance	15202135000	USD
CY2018Q3	wal	Financing Receivable Unpaid Principal Balance FinancingReceivableUnpaidPrincipalBalance	16841308000	USD
CY2017Q4	wal	Financing Receivable Unpaid Principal Balance Collectively Evaluated For Impairment FinancingReceivableUnpaidPrincipalBalanceCollectivelyEvaluatedForImpairment	14879626000	USD
CY2018Q3	wal	Financing Receivable Unpaid Principal Balance Collectively Evaluated For Impairment FinancingReceivableUnpaidPrincipalBalanceCollectivelyEvaluatedForImpairment	16521452000	USD
CY2016Q4	wal	Foreclosed Assets Gross ForeclosedAssetsGross	54138000	USD
CY2017Q2	wal	Foreclosed Assets Gross ForeclosedAssetsGross	35037000	USD
CY2017Q3	wal	Foreclosed Assets Gross ForeclosedAssetsGross	33054000	USD
CY2017Q4	wal	Foreclosed Assets Gross ForeclosedAssetsGross	32552000	USD
CY2018Q2	wal	Foreclosed Assets Gross ForeclosedAssetsGross	31145000	USD
CY2018Q3	wal	Foreclosed Assets Gross ForeclosedAssetsGross	23231000	USD
	wal	Gain Loss On Foreclosed Assets GainLossOnForeclosedAssets	233000	USD
	wal	Gain Loss On Foreclosed Assets GainLossOnForeclosedAssets	1464000	USD
	wal	Gains Losses On Transfers To Other Real Estate And Foreclosed Assets GainsLossesOnTransfersToOtherRealEstateAndForeclosedAssets	100000	USD
CY2018Q3	wal	Gains Losses On Transfers To Other Real Estate And Foreclosed Assets GainsLossesOnTransfersToOtherRealEstateAndForeclosedAssets	0	USD
	wal	Gains Losses On Transfers To Other Real Estate And Foreclosed Assets GainsLossesOnTransfersToOtherRealEstateAndForeclosedAssets	1000000	USD
CY2017Q4	wal	Impaired Financing Receivable Unpaid Principal Balance Individually Evaluated For Impairment ImpairedFinancingReceivableUnpaidPrincipalBalanceIndividuallyEvaluatedForImpairment	177584000	USD
CY2018Q3	wal	Impaired Financing Receivable Unpaid Principal Balance Individually Evaluated For Impairment ImpairedFinancingReceivableUnpaidPrincipalBalanceIndividuallyEvaluatedForImpairment	211602000	USD
CY2017Q4	wal	Impaired Financing Receivable With No Related Allowance ImpairedFinancingReceivableWithNoRelatedAllowance	0	USD
CY2018Q3	wal	Impaired Financing Receivable With No Related Allowance ImpairedFinancingReceivableWithNoRelatedAllowance	0	USD
CY2017Q4	wal	Impaired Financing Receivables With Norelated Allowance Balanceswith Chargeoffs ImpairedFinancingReceivablesWithNorelatedAllowanceBalanceswithChargeoffs	15600000	USD
CY2018Q3	wal	Impaired Financing Receivables With Norelated Allowance Balanceswith Chargeoffs ImpairedFinancingReceivablesWithNorelatedAllowanceBalanceswithChargeoffs	40500000	USD
CY2017Q3	wal	Incomefrom Equity Investments IncomefromEquityInvestments	967000	USD
	wal	Incomefrom Equity Investments IncomefromEquityInvestments	2977000	USD
CY2018Q3	wal	Incomefrom Equity Investments IncomefromEquityInvestments	1440000	USD
	wal	Incomefrom Equity Investments IncomefromEquityInvestments	5417000	USD
CY2017Q4	wal	Interest Rate Markson Acquired Loans InterestRateMarksonAcquiredLoans	14100000	USD
CY2018Q3	wal	Interest Rate Markson Acquired Loans InterestRateMarksonAcquiredLoans	8700000	USD
CY2017Q3	wal	Legal Professional And Director Fees LegalProfessionalAndDirectorFees	6038000	USD
	wal	Legal Professional And Director Fees LegalProfessionalAndDirectorFees	23324000	USD
CY2018Q3	wal	Legal Professional And Director Fees LegalProfessionalAndDirectorFees	7907000	USD
	wal	Legal Professional And Director Fees LegalProfessionalAndDirectorFees	21856000	USD
CY2017Q3	wal	Lendingrelatedfees Lendingrelatedfees	97000	USD
	wal	Lendingrelatedfees Lendingrelatedfees	746000	USD
CY2018Q3	wal	Lendingrelatedfees Lendingrelatedfees	1422000	USD
	wal	Lendingrelatedfees Lendingrelatedfees	3447000	USD
CY2017Q3	wal	Loan And Repossessed Asset Expense LoanAndRepossessedAssetExpense	1263000	USD
	wal	Loan And Repossessed Asset Expense LoanAndRepossessedAssetExpense	3639000	USD
CY2018Q3	wal	Loan And Repossessed Asset Expense LoanAndRepossessedAssetExpense	1230000	USD
	wal	Loan And Repossessed Asset Expense LoanAndRepossessedAssetExpense	2830000	USD
CY2017Q3	wal	Loans And Loans Receivable Purchases LoansAndLoansReceivablePurchases	216800000	USD
	wal	Loans And Loans Receivable Purchases LoansAndLoansReceivablePurchases	666800000	USD
CY2018Q3	wal	Loans And Loans Receivable Purchases LoansAndLoansReceivablePurchases	482800000	USD
	wal	Loans And Loans Receivable Purchases LoansAndLoansReceivablePurchases	1010000000	USD
CY2017Q4	wal	Loansand Leases Receivable Including Heldfor Sale Net LoansandLeasesReceivableIncludingHeldforSaleNet	14953900000	USD
CY2018Q3	wal	Loansand Leases Receivable Including Heldfor Sale Net LoansandLeasesReceivableIncludingHeldforSaleNet	16582800000	USD
CY2017Q4	wal	Loansand Leases Receivable Including Heldfor Sale Netof Deferred Income LoansandLeasesReceivableIncludingHeldforSaleNetofDeferredIncome	15093900000	USD
CY2018Q3	wal	Loansand Leases Receivable Including Heldfor Sale Netof Deferred Income LoansandLeasesReceivableIncludingHeldforSaleNetofDeferredIncome	16732800000	USD
	wal	Maximum Loan To Value Ratio MaximumLoanToValueRatio	0.75
CY2017Q3	wal	Net Loss Gain On Sales Valuations Of Repossessed Assets And Bank Premises Net NetLossGainOnSalesValuationsOfRepossessedAssetsAndBankPremisesNet	266000	USD
	wal	Net Loss Gain On Sales Valuations Of Repossessed Assets And Bank Premises Net NetLossGainOnSalesValuationsOfRepossessedAssetsAndBankPremisesNet	-46000	USD
CY2018Q3	wal	Net Loss Gain On Sales Valuations Of Repossessed Assets And Bank Premises Net NetLossGainOnSalesValuationsOfRepossessedAssetsAndBankPremisesNet	-67000	USD
	wal	Net Loss Gain On Sales Valuations Of Repossessed Assets And Bank Premises Net NetLossGainOnSalesValuationsOfRepossessedAssetsAndBankPremisesNet	-1474000	USD
CY2017Q3	wal	Non Interest Expense Deposit Costs NonInterestExpenseDepositCosts	2904000	USD
	wal	Non Interest Expense Deposit Costs NonInterestExpenseDepositCosts	6778000	USD
CY2018Q3	wal	Non Interest Expense Deposit Costs NonInterestExpenseDepositCosts	4848000	USD
	wal	Non Interest Expense Deposit Costs NonInterestExpenseDepositCosts	11888000	USD
CY2017Q4	wal	Non Performing Assets NonPerformingAssets	114939000	USD
CY2018Q3	wal	Non Performing Assets NonPerformingAssets	99463000	USD
CY2017Q4	wal	Non Performing Loans NonPerformingLoans	86399000	USD
CY2018Q3	wal	Non Performing Loans NonPerformingLoans	79435000	USD
CY2017Q4	wal	Number Of Securities In Unrealized Position NumberOfSecuritiesInUnrealizedPosition	302	positions
CY2018Q3	wal	Number Of Securities In Unrealized Position NumberOfSecuritiesInUnrealizedPosition	409	positions
	wal	Number Of Unconsolidated Subsidiaries NumberOfUnconsolidatedSubsidiaries	8	Subsidiary
	wal	Number Of Wholly Owned Subsidiaries Non Bank Subsidiaries NumberOfWhollyOwnedSubsidiariesNonBankSubsidiaries	2	Subsidiary
CY2018Q3	wal	Numberof Statutory Business Trusts Formedor Acquired NumberofStatutoryBusinessTrustsFormedorAcquired	8	Trust
CY2017Q4	wal	Other Assets Segment OtherAssetsSegment	808900000	USD
CY2018Q3	wal	Other Assets Segment OtherAssetsSegment	939600000	USD
CY2017Q4	wal	Other Liabilities Segment OtherLiabilitiesSegment	360000000	USD
CY2018Q3	wal	Other Liabilities Segment OtherLiabilitiesSegment	420000000	USD
CY2017Q3	wal	Othernoninterestincome Othernoninterestincome	127000	USD
	wal	Othernoninterestincome Othernoninterestincome	373000	USD
CY2018Q3	wal	Othernoninterestincome Othernoninterestincome	84000	USD
	wal	Othernoninterestincome Othernoninterestincome	497000	USD
CY2017Q3	wal	Otherrevenue Otherrevenue	3130000	USD
	wal	Otherrevenue Otherrevenue	11218000	USD
CY2018Q3	wal	Otherrevenue Otherrevenue	-3442000	USD
	wal	Otherrevenue Otherrevenue	4964000	USD
CY2017Q3	wal	Over Collateralization On Derivatives To Banks After Application Of Master Netting Agreements And Collateral OverCollateralizationOnDerivativesToBanksAfterApplicationOfMasterNettingAgreementsAndCollateral	25100000	USD
CY2017Q4	wal	Over Collateralization On Derivatives To Banks After Application Of Master Netting Agreements And Collateral OverCollateralizationOnDerivativesToBanksAfterApplicationOfMasterNettingAgreementsAndCollateral	25000000	USD
CY2018Q3	wal	Over Collateralization On Derivatives To Banks After Application Of Master Netting Agreements And Collateral OverCollateralizationOnDerivativesToBanksAfterApplicationOfMasterNettingAgreementsAndCollateral	17700000	USD
	wal	Paymentsto Acquire Securities Equity PaymentstoAcquireSecuritiesEquity	0	USD
	wal	Paymentsto Acquire Securities Equity PaymentstoAcquireSecuritiesEquity	71727000	USD
CY2017Q4	wal	Percentage Of Commercial Real Estate Loans Occupied By Owners PercentageOfCommercialRealEstateLoansOccupiedByOwners	0.36
CY2018Q3	wal	Percentage Of Commercial Real Estate Loans Occupied By Owners PercentageOfCommercialRealEstateLoansOccupiedByOwners	0.37
CY2017Q3	wal	Proceeds From Sale Of Other Real Estate Owned Gross ProceedsFromSaleOfOtherRealEstateOwnedGross	2491000	USD
	wal	Proceeds From Sale Of Other Real Estate Owned Gross ProceedsFromSaleOfOtherRealEstateOwnedGross	23129000	USD
CY2018Q3	wal	Proceeds From Sale Of Other Real Estate Owned Gross ProceedsFromSaleOfOtherRealEstateOwnedGross	1093000	USD
	wal	Proceeds From Sale Of Other Real Estate Owned Gross ProceedsFromSaleOfOtherRealEstateOwnedGross	9634000	USD
	wal	Proceeds From Sale Of Other Real Estate Owned Net ProceedsFromSaleOfOtherRealEstateOwnedNet	20748000	USD
	wal	Proceeds From Sale Of Other Real Estate Owned Net ProceedsFromSaleOfOtherRealEstateOwnedNet	8793000	USD
CY2017Q3	wal	Proceeds From Sale Of Other Real Estate Owned Valuation Allowance ProceedsFromSaleOfOtherRealEstateOwnedValuationAllowance	330000	USD
	wal	Proceeds From Sale Of Other Real Estate Owned Valuation Allowance ProceedsFromSaleOfOtherRealEstateOwnedValuationAllowance	2381000	USD
CY2018Q3	wal	Proceeds From Sale Of Other Real Estate Owned Valuation Allowance ProceedsFromSaleOfOtherRealEstateOwnedValuationAllowance	401000	USD
	wal	Proceeds From Sale Of Other Real Estate Owned Valuation Allowance ProceedsFromSaleOfOtherRealEstateOwnedValuationAllowance	841000	USD
	wal	Proceeds From Sale Of Securities Measured At Fair Value ProceedsFromSaleOfSecuritiesMeasuredAtFairValue	994000	USD
	wal	Proceeds From Sale Of Securities Measured At Fair Value ProceedsFromSaleOfSecuritiesMeasuredAtFairValue	0	USD
	wal	Proceedsfrom Sale Paymentsto Purchase Investment In Money Market ProceedsfromSalePaymentstoPurchaseInvestmentInMoneyMarket	-175000	USD
	wal	Proceedsfrom Sale Paymentsto Purchase Investment In Money Market ProceedsfromSalePaymentstoPurchaseInvestmentInMoneyMarket	-5000	USD
	wal	Purchase Of Investment Tax Credits PurchaseOfInvestmentTaxCredits	19916000	USD
	wal	Purchase Of Investment Tax Credits PurchaseOfInvestmentTaxCredits	66456000	USD
	wal	Purchaseof Sbic Investments PurchaseofSBICInvestments	0	USD
	wal	Purchaseof Sbic Investments PurchaseofSBICInvestments	3063000	USD
CY2017Q4	wal	Qualifying Debt QualifyingDebt	376905000	USD
CY2018Q3	wal	Qualifying Debt QualifyingDebt	359082000	USD
	wal	Reinvestmentsofdividendproceeds Reinvestmentsofdividendproceeds	0	USD
	wal	Reinvestmentsofdividendproceeds Reinvestmentsofdividendproceeds	-426000	USD
	wal	Restrictedstocksurrendered Restrictedstocksurrendered	13642000	USD
	wal	Restrictedstocksurrendered Restrictedstocksurrendered	11862000	USD
CY2017Q3	wal	Success Fees SuccessFees	701000	USD
	wal	Success Fees SuccessFees	1162000	USD
CY2018Q3	wal	Success Fees SuccessFees	675000	USD
	wal	Success Fees SuccessFees	2370000	USD
CY2017Q4	wal	Troubled Debt Restructured Loans TroubledDebtRestructuredLoans	42431000	USD
CY2018Q3	wal	Troubled Debt Restructured Loans TroubledDebtRestructuredLoans	42567000	USD
	wal	Unfunded Commitments To Purchase Investment Tax Credits UnfundedCommitmentsToPurchaseInvestmentTaxCredits	103012000	USD
	wal	Unfunded Commitments To Purchase Investment Tax Credits UnfundedCommitmentsToPurchaseInvestmentTaxCredits	65639000	USD
CY2017Q3	wal	Valuation Adjustments Of Other Repossessed Assets Net ValuationAdjustmentsOfOtherRepossessedAssetsNet	-343000	USD
	wal	Valuation Adjustments Of Other Repossessed Assets Net ValuationAdjustmentsOfOtherRepossessedAssetsNet	-120000	USD
CY2018Q3	wal	Valuation Adjustments Of Other Repossessed Assets Net ValuationAdjustmentsOfOtherRepossessedAssetsNet	0	USD
	wal	Valuation Adjustments Of Other Repossessed Assets Net ValuationAdjustmentsOfOtherRepossessedAssetsNet	-32000	USD
CY2017Q3	wal	Valuation Adjustments Of Other Repossessed Assets Valuation Allowance ValuationAdjustmentsOfOtherRepossessedAssetsValuationAllowance	-343000	USD
	wal	Valuation Adjustments Of Other Repossessed Assets Valuation Allowance ValuationAdjustmentsOfOtherRepossessedAssetsValuationAllowance	-120000	USD
CY2018Q3	wal	Valuation Adjustments Of Other Repossessed Assets Valuation Allowance ValuationAdjustmentsOfOtherRepossessedAssetsValuationAllowance	0	USD
	wal	Valuation Adjustments Of Other Repossessed Assets Valuation Allowance ValuationAdjustmentsOfOtherRepossessedAssetsValuationAllowance	-32000	USD
	us-gaap	Prior Period Reclassification Adjustment Description PriorPeriodReclassificationAdjustmentDescription	<div style="font-family:Times New Roman;font-size:10pt;"><div style="line-height:120%;padding-top:12px;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;font-weight:bold;">Reclassifications</font></div><div style="line-height:120%;padding-top:12px;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">Certain amounts reported in prior periods may have been reclassified in the Consolidated Financial Statements to conform to the current presentation. The reclassifications have no effect on net income or stockholders’ equity as previously reported.</font></div></div>
	us-gaap	Use Of Estimates UseOfEstimates	<div style="font-family:Times New Roman;font-size:10pt;"><div style="line-height:120%;padding-top:12px;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;font-weight:bold;">Use of estimates</font></div><div style="line-height:120%;padding-top:12px;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">The preparation of financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosures of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the reporting period. Management's estimates and judgments are ongoing and are based on experience, current and expected future conditions, third-party evaluations and various other assumptions that management believes are reasonable under the circumstances. The results of these estimates form the basis for making judgments about the carrying values of assets and liabilities, as well as identifying and assessing the accounting treatment with respect to commitments and contingencies. Actual results may differ from those estimates and assumptions used in the Consolidated Financial Statements and related notes. Material estimates that are particularly susceptible to significant changes in the near term relate to the determination of the allowance for credit losses; estimated cash flows related to PCI loans; fair value determinations related to acquisitions and certain assets and liabilities carried at fair value; and accounting for income taxes. </font></div></div>

Files In Submission

Name	View Source	Status
0001212545-18-000180-index-headers.html	Edgar Link	pending
0001212545-18-000180-index.html	Edgar Link	pending
0001212545-18-000180.txt	Edgar Link	pending
0001212545-18-000180-xbrl.zip	Edgar Link	pending
FilingSummary.xml	Edgar Link	unprocessable
Financial_Report.xlsx	Edgar Link	pending
R1.htm	Edgar Link	pending
R10.htm	Edgar Link	pending
R11.htm	Edgar Link	pending
R12.htm	Edgar Link	pending
R13.htm	Edgar Link	pending
R14.htm	Edgar Link	pending
R15.htm	Edgar Link	pending
R16.htm	Edgar Link	pending
R17.htm	Edgar Link	pending
R18.htm	Edgar Link	pending
R19.htm	Edgar Link	pending
R2.htm	Edgar Link	pending
R20.htm	Edgar Link	pending
R21.htm	Edgar Link	pending
R22.htm	Edgar Link	pending
R23.htm	Edgar Link	pending
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$WAL
WESTERN ALLIANCE BANCORPORATION Stock $wal

2018 Q4 Form 10-Q Financial Statement

#000121254518000180 Filed on October 30, 2018

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$WAL WESTERN ALLIANCE BANCORPORATION Stock $wal

2018 Q4 Form 10-Q Financial Statement

#000121254518000180 Filed on October 30, 2018

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$WAL
WESTERN ALLIANCE BANCORPORATION Stock $wal