$WAL
WESTERN ALLIANCE BANCORPORATION Stock $wal

$wal Overview Financials Valuation SEC Filings Company Website

2016 Form 10-K Financial Statement

#000121254517000112 Filed on February 28, 2017

Income Statement

Concept	2016	2015 Q4	2015 Q3
Revenue	$700.5M	$151.3M	$146.2M
YoY Change	33.39%	37.39%	38.54%
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	$12.50M	$2.500M	$2.100M
YoY Change	47.06%	31.58%	90.91%
% of Gross Profit
Operating Expenses
YoY Change
Operating Profit
YoY Change
Interest Expense	$43.29M	$7.988M	$8.826M
YoY Change	32.93%	-0.22%	17.98%
% of Operating Profit
Other Income/Expense, Net
YoY Change
Pretax Income	$361.2M	$77.87M	$72.99M
YoY Change	39.7%	42.84%	35.5%
Income Tax	$101.4M	$19.35M	$17.13M
% Of Pretax Income	28.07%	24.85%	23.47%
Net Earnings	$259.8M	$58.53M	$55.86M
YoY Change	33.75%	44.83%	36.51%
Net Earnings / Revenue	37.09%	38.67%	38.2%
Basic Earnings Per Share	$2.52	$0.58	$0.55
Diluted Earnings Per Share	$2.50	$0.57	$0.55
COMMON SHARES
Basic Shares Outstanding	103.0M shares	102.3M shares	100.8M shares
Diluted Shares Outstanding	103.8M shares		101.5M shares

Balance Sheet

Concept	2016	2015 Q4	2015 Q3
SHORT-TERM ASSETS
Cash & Short-Term Investments
YoY Change
Cash & Equivalents		$224.6M	$325.4M
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	$120.0M	$118.5M	$121.7M
YoY Change	0.84%	4.14%	8.64%
Goodwill		$289.6M	$289.3M
YoY Change		1147.15%	1145.9%
Intangibles		$15.72M	$16.42M
YoY Change		484.46%	452.86%
Long-Term Investments
YoY Change
Other Assets	$95.00M	$86.00M	$79.00M
YoY Change	10.47%	36.51%	16.18%
Total Long-Term Assets
YoY Change
TOTAL ASSETS
Total Short-Term Assets
Total Long-Term Assets
Total Assets	$17.20B	$14.28B	$13.96B
YoY Change	20.5%	34.66%	35.64%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable
YoY Change
Accrued Expenses
YoY Change
Deferred Revenue
YoY Change
Short-Term Debt	$42.00M	$150.0M	$300.0M
YoY Change	10.53%	-16.74%	148.64%
Long-Term Debt Due
YoY Change
Total Short-Term Liabilities	$42.00M	$38.00M	$53.00M
YoY Change	10.53%	-72.46%	-52.25%
LONG-TERM LIABILITIES
Long-Term Debt	$368.0M	$0.00	$0.00
YoY Change	75.24%	-100.0%	-100.0%
Other Long-Term Liabilities	$270.0M	$254.0M	$201.0M
YoY Change	6.3%	38.8%	23.31%
Total Long-Term Liabilities	$638.0M	$0.00	$0.00
YoY Change	37.5%	-100.0%	-100.0%
TOTAL LIABILITIES
Total Short-Term Liabilities	$42.00M	$38.00M	$53.00M
Total Long-Term Liabilities	$638.0M	$0.00	$0.00
Total Liabilities	$15.31B	$12.68B	$12.37B
YoY Change	20.7%	32.13%	33.24%
SHAREHOLDERS EQUITY
Retained Earnings		$262.6M	$218.9M
YoY Change		207.35%	382.44%
Common Stock		$10.00K	$10.00K
YoY Change		11.11%	11.11%
Preferred Stock
YoY Change
Treasury Stock (at cost)		$16.88M
YoY Change
Treasury Stock Shares		995.2K shares
Shareholders Equity	$1.892B	$1.592B	$1.584B
YoY Change
Total Liabilities & Shareholders Equity	$17.20B	$14.28B	$13.96B
YoY Change	20.5%	34.66%	35.64%

Cashflow Statement

Concept	2016	2015 Q4	2015 Q3
OPERATING ACTIVITIES
Net Income	$259.8M	$58.53M	$55.86M
YoY Change	33.75%	44.83%	36.51%
Depreciation, Depletion And Amortization	$12.50M	$2.500M	$2.100M
YoY Change	47.06%	31.58%	90.91%
Cash From Operating Activities	$280.6M	$75.80M	$55.50M
YoY Change	27.33%	25.7%	19.1%
INVESTING ACTIVITIES
Capital Expenditures	-$10.60M	$1.000M	-$8.000M
YoY Change	-2.75%	-129.41%	60.0%
Acquisitions
YoY Change
Other Investing Activities	-$2.880B	-$390.3M	-$873.7M
YoY Change	112.43%	-0.51%	127.82%
Cash From Investing Activities	-$2.890B	-$389.2M	-$881.7M
YoY Change	111.52%	-1.64%	126.95%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net	$55.79M
YoY Change	97.2%
Debt Paid & Issued, Net
YoY Change
Cash From Financing Activities	$2.669B	212.7M	393.2M
YoY Change	121.3%	-8.16%	70.29%
NET CHANGE
Cash From Operating Activities	$280.6M	75.80M	55.50M
Cash From Investing Activities	-$2.890B	-389.2M	-881.7M
Cash From Financing Activities	$2.669B	212.7M	393.2M
Net Change In Cash	$59.85M	-100.7M	-433.0M
YoY Change	-0.65%	-2.99%	290.09%
FREE CASH FLOW
Cash From Operating Activities	$280.6M	$75.80M	$55.50M
Capital Expenditures	-$10.60M	$1.000M	-$8.000M
Free Cash Flow	$291.2M	$74.80M	$63.50M
YoY Change	25.91%	17.43%	23.06%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
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CY2016	us-gaap	Accretion Amortization Of Discounts And Premiums Investments AccretionAmortizationOfDiscountsAndPremiumsInvestments	-13790000	USD
CY2015Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	59849000	USD
CY2016Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	69986000	USD
CY2013Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-21546000	USD
CY2014Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	16639000	USD
CY2015Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	22260000	USD
CY2016Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-4695000	USD
CY2015Q1	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	32948000	USD
CY2016	us-gaap	Acquired Finite Lived Intangible Assets Weighted Average Useful Life AcquiredFiniteLivedIntangibleAssetsWeightedAverageUsefulLife	P8Y2M12D
CY2016	dei	Amendment Flag AmendmentFlag	false
CY2016	dei	Current Fiscal Year End Date CurrentFiscalYearEndDate	--12-31
CY2016	dei	Document Fiscal Period Focus DocumentFiscalPeriodFocus	FY
CY2016	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2016
CY2016	dei	Document Period End Date DocumentPeriodEndDate	2016-12-31
CY2016	dei	Document Type DocumentType	10-K
CY2016	dei	Entity Central Index Key EntityCentralIndexKey	0001212545
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CY2016	dei	Entity Current Reporting Status EntityCurrentReportingStatus	Yes
CY2016	dei	Entity Filer Category EntityFilerCategory	Large Accelerated Filer
CY2016Q2	dei	Entity Public Float EntityPublicFloat	2446100000	USD
CY2016	dei	Entity Registrant Name EntityRegistrantName	WESTERN ALLIANCE BANCORPORATION
CY2016	dei	Entity Voluntary Filers EntityVoluntaryFilers	No
CY2016	dei	Entity Well Known Seasoned Issuer EntityWellKnownSeasonedIssuer	Yes
CY2016	dei	Trading Symbol TradingSymbol	WAL
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CY2015	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	2000000	USD
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CY2014	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	186136000	USD
CY2015	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	183556000	USD
CY2016	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	232843000	USD
CY2015Q4	us-gaap	Construction In Progress Gross ConstructionInProgressGross	1999000	USD
CY2016Q4	us-gaap	Construction In Progress Gross ConstructionInProgressGross	4840000	USD
CY2014	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	55572000	USD
CY2015	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	61040000	USD
CY2016	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	93737000	USD
CY2014	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-7182000	USD
CY2015	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	3254000	USD
CY2016	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	7644000	USD
CY2015Q4	us-gaap	Deferred Income Tax Liabilities DeferredIncomeTaxLiabilities	31406000	USD
CY2016Q4	us-gaap	Deferred Income Tax Liabilities DeferredIncomeTaxLiabilities	18458000	USD
CY2014	us-gaap	Deferred Income Taxes And Tax Credits DeferredIncomeTaxesAndTaxCredits	-7182000	USD
CY2015	us-gaap	Deferred Income Taxes And Tax Credits DeferredIncomeTaxesAndTaxCredits	3254000	USD
CY2016	us-gaap	Deferred Income Taxes And Tax Credits DeferredIncomeTaxesAndTaxCredits	7644000	USD
CY2015Q4	us-gaap	Deferred Tax Assets Gross DeferredTaxAssetsGross	117758000	USD
CY2016Q4	us-gaap	Deferred Tax Assets Gross DeferredTaxAssetsGross	113652000	USD
CY2015Q4	us-gaap	Deferred Tax Assets Liabilities Net DeferredTaxAssetsLiabilitiesNet	86352000	USD
CY2016Q4	us-gaap	Deferred Tax Assets Liabilities Net DeferredTaxAssetsLiabilitiesNet	95194000	USD
CY2015Q4	us-gaap	Deferred Tax Assets Other DeferredTaxAssetsOther	13686000	USD
CY2016Q4	us-gaap	Deferred Tax Assets Other DeferredTaxAssetsOther	13679000	USD
CY2015Q4	us-gaap	Deferred Tax Assets Tax Credit Carryforwards DeferredTaxAssetsTaxCreditCarryforwards	9052000	USD
CY2016Q4	us-gaap	Deferred Tax Assets Tax Credit Carryforwards DeferredTaxAssetsTaxCreditCarryforwards	0	USD
CY2015Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Share Based Compensation Cost DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost	12069000	USD
CY2016Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Share Based Compensation Cost DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost	12302000	USD
CY2015Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Provision For Loan Losses DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsProvisionForLoanLosses	47431000	USD
CY2016Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Provision For Loan Losses DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsProvisionForLoanLosses	50860000	USD
CY2015Q4	us-gaap	Deferred Tax Assets Unrealized Losses On Availablefor Sale Securities Gross DeferredTaxAssetsUnrealizedLossesOnAvailableforSaleSecuritiesGross	0	USD
CY2016Q4	us-gaap	Deferred Tax Assets Unrealized Losses On Availablefor Sale Securities Gross DeferredTaxAssetsUnrealizedLossesOnAvailableforSaleSecuritiesGross	9149000	USD
CY2015Q4	us-gaap	Deferred Tax Liabilities Deferred Expense Deferred Financing Costs DeferredTaxLiabilitiesDeferredExpenseDeferredFinancingCosts	7400000	USD
CY2016Q4	us-gaap	Deferred Tax Liabilities Deferred Expense Deferred Financing Costs DeferredTaxLiabilitiesDeferredExpenseDeferredFinancingCosts	3212000	USD
CY2015Q4	us-gaap	Deferred Tax Liabilities Goodwill And Intangible Assets Intangible Assets DeferredTaxLiabilitiesGoodwillAndIntangibleAssetsIntangibleAssets	6093000	USD
CY2016Q4	us-gaap	Deferred Tax Liabilities Goodwill And Intangible Assets Intangible Assets DeferredTaxLiabilitiesGoodwillAndIntangibleAssetsIntangibleAssets	4949000	USD
CY2015Q4	us-gaap	Deferred Tax Liabilities Other DeferredTaxLiabilitiesOther	984000	USD
CY2016Q4	us-gaap	Deferred Tax Liabilities Other DeferredTaxLiabilitiesOther	1516000	USD
CY2015Q4	us-gaap	Deferred Tax Liabilities Property Plant And Equipment DeferredTaxLiabilitiesPropertyPlantAndEquipment	2039000	USD
CY2016Q4	us-gaap	Deferred Tax Liabilities Property Plant And Equipment DeferredTaxLiabilitiesPropertyPlantAndEquipment	449000	USD
CY2016Q2	us-gaap	Defined Benefit Pension Plan Current And Noncurrent Liabilities DefinedBenefitPensionPlanCurrentAndNoncurrentLiabilities	7100000	USD
CY2015Q4	us-gaap	Defined Benefit Plan Accumulated Benefit Obligation DefinedBenefitPlanAccumulatedBenefitObligation	7444000	USD
CY2016Q4	us-gaap	Defined Benefit Plan Accumulated Benefit Obligation DefinedBenefitPlanAccumulatedBenefitObligation	8394000	USD
	us-gaap	Defined Benefit Plan Actuarial Gain Loss DefinedBenefitPlanActuarialGainLoss	147000	USD
CY2016	us-gaap	Defined Benefit Plan Actuarial Gain Loss DefinedBenefitPlanActuarialGainLoss	88000	USD
	us-gaap	Defined Benefit Plan Amortization Of Gains Losses DefinedBenefitPlanAmortizationOfGainsLosses	-18000	USD
CY2016	us-gaap	Defined Benefit Plan Amortization Of Gains Losses DefinedBenefitPlanAmortizationOfGainsLosses	-100000	USD
CY2016	us-gaap	Defined Benefit Plan Amortization Of Prior Service Cost Credit DefinedBenefitPlanAmortizationOfPriorServiceCostCredit	101000	USD
CY2015Q4	us-gaap	Defined Benefit Plan Assumptions Used Calculating Benefit Obligation Discount Rate DefinedBenefitPlanAssumptionsUsedCalculatingBenefitObligationDiscountRate	0.058
CY2016Q4	us-gaap	Defined Benefit Plan Assumptions Used Calculating Benefit Obligation Discount Rate DefinedBenefitPlanAssumptionsUsedCalculatingBenefitObligationDiscountRate	0.058
CY2015Q4	us-gaap	Defined Benefit Plan Assumptions Used Calculating Benefit Obligation Rate Of Compensation Increase DefinedBenefitPlanAssumptionsUsedCalculatingBenefitObligationRateOfCompensationIncrease	0.040
CY2016Q4	us-gaap	Defined Benefit Plan Assumptions Used Calculating Benefit Obligation Rate Of Compensation Increase DefinedBenefitPlanAssumptionsUsedCalculatingBenefitObligationRateOfCompensationIncrease	0.040
CY2014Q4	us-gaap	Defined Benefit Plan Benefit Obligation DefinedBenefitPlanBenefitObligation	7122000	USD
CY2015Q4	us-gaap	Defined Benefit Plan Benefit Obligation DefinedBenefitPlanBenefitObligation	7444000	USD
CY2016Q4	us-gaap	Defined Benefit Plan Benefit Obligation DefinedBenefitPlanBenefitObligation	8394000	USD
	us-gaap	Defined Benefit Plan Benefits Paid DefinedBenefitPlanBenefitsPaid	67000	USD
CY2016	us-gaap	Defined Benefit Plan Benefits Paid DefinedBenefitPlanBenefitsPaid	67000	USD
	us-gaap	Defined Benefit Plan Interest Cost DefinedBenefitPlanInterestCost	202000	USD
CY2016	us-gaap	Defined Benefit Plan Interest Cost DefinedBenefitPlanInterestCost	425000	USD
	us-gaap	Defined Benefit Plan Net Periodic Benefit Cost DefinedBenefitPlanNetPeriodicBenefitCost	578000	USD
CY2016	us-gaap	Defined Benefit Plan Net Periodic Benefit Cost DefinedBenefitPlanNetPeriodicBenefitCost	1040000	USD
	us-gaap	Defined Benefit Plan Service Cost DefinedBenefitPlanServiceCost	334000	USD
CY2016	us-gaap	Defined Benefit Plan Service Cost DefinedBenefitPlanServiceCost	614000	USD
CY2014	us-gaap	Defined Contribution Plan Employer Discretionary Contribution Amount DefinedContributionPlanEmployerDiscretionaryContributionAmount	1700000	USD
CY2015	us-gaap	Defined Contribution Plan Employer Discretionary Contribution Amount DefinedContributionPlanEmployerDiscretionaryContributionAmount	2200000	USD
CY2016	us-gaap	Defined Contribution Plan Employer Discretionary Contribution Amount DefinedContributionPlanEmployerDiscretionaryContributionAmount	2700000	USD
CY2016	us-gaap	Defined Contribution Plan Maximum Annual Contributions Per Employee Amount DefinedContributionPlanMaximumAnnualContributionsPerEmployeeAmount	18000	USD
CY2015Q4	us-gaap	Deposits Deposits	12030600000	USD
CY2015Q4	us-gaap	Deposits Deposits	12030624000	USD
CY2016Q4	us-gaap	Deposits Deposits	14549863000	USD
CY2015Q4	us-gaap	Deposits Savings Deposits DepositsSavingsDeposits	5296921000	USD
CY2016Q4	us-gaap	Deposits Savings Deposits DepositsSavingsDeposits	6120877000	USD
CY2015Q4	us-gaap	Deposits Wholesale DepositsWholesale	178800000	USD
CY2016Q4	us-gaap	Deposits Wholesale DepositsWholesale	136200000	USD
CY2014	us-gaap	Depreciation And Amortization DepreciationAndAmortization	6166000	USD
CY2015	us-gaap	Depreciation And Amortization DepreciationAndAmortization	8466000	USD
CY2016	us-gaap	Depreciation And Amortization DepreciationAndAmortization	12494000	USD
CY2014	us-gaap	Depreciation Nonproduction DepreciationNonproduction	6000000	USD
CY2015	us-gaap	Depreciation Nonproduction DepreciationNonproduction	7700000	USD
CY2016	us-gaap	Depreciation Nonproduction DepreciationNonproduction	9200000	USD
CY2014Q4	us-gaap	Derivative Assets DerivativeAssets	7000	USD
CY2015Q4	us-gaap	Derivative Assets DerivativeAssets	3569000	USD
CY2016Q4	us-gaap	Derivative Assets DerivativeAssets	2351000	USD
CY2014Q4	us-gaap	Derivative Fair Value Of Derivative Asset DerivativeFairValueOfDerivativeAsset	7000	USD
CY2015Q4	us-gaap	Derivative Fair Value Of Derivative Asset DerivativeFairValueOfDerivativeAsset	3569000	USD
CY2016Q4	us-gaap	Derivative Fair Value Of Derivative Asset DerivativeFairValueOfDerivativeAsset	4220000	USD
CY2014Q4	us-gaap	Derivative Fair Value Of Derivative Liability DerivativeFairValueOfDerivativeLiability	57820000	USD
CY2015Q4	us-gaap	Derivative Fair Value Of Derivative Liability DerivativeFairValueOfDerivativeLiability	64785000	USD
CY2016Q4	us-gaap	Derivative Fair Value Of Derivative Liability DerivativeFairValueOfDerivativeLiability	65749000	USD
CY2014Q4	us-gaap	Derivative Liabilities DerivativeLiabilities	57820000	USD
CY2015Q4	us-gaap	Derivative Liabilities DerivativeLiabilities	64785000	USD
CY2016Q4	us-gaap	Derivative Liabilities DerivativeLiabilities	63880000	USD
CY2014	us-gaap	Derivative Net Hedge Ineffectiveness Gain Loss DerivativeNetHedgeIneffectivenessGainLoss	-169000	USD
CY2015	us-gaap	Derivative Net Hedge Ineffectiveness Gain Loss DerivativeNetHedgeIneffectivenessGainLoss	79000	USD
CY2016	us-gaap	Derivative Net Hedge Ineffectiveness Gain Loss DerivativeNetHedgeIneffectivenessGainLoss	63000	USD
CY2014	us-gaap	Dividend Income Securities Operating Taxable DividendIncomeSecuritiesOperatingTaxable	6562000	USD
CY2015	us-gaap	Dividend Income Securities Operating Taxable DividendIncomeSecuritiesOperatingTaxable	10317000	USD
CY2016	us-gaap	Dividend Income Securities Operating Taxable DividendIncomeSecuritiesOperatingTaxable	9002000	USD
CY2015	us-gaap	Dividends Preferred Stock Cash DividendsPreferredStockCash	750000	USD
CY2014	us-gaap	Dividends Preferred Stock Cash DividendsPreferredStockCash	1387000	USD
CY2014	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.69
CY2015Q1	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.46
CY2015Q2	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.44
CY2015Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.55
CY2015Q4	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.58
CY2015	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	2.05
CY2016Q1	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.60
CY2016Q2	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.60
CY2016Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.65
CY2016Q4	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.67
CY2016	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	2.52
CY2014	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.67
CY2015Q1	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.45
CY2015Q2	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.44
CY2015Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.55
CY2015Q4	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.57
CY2015	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	2.03
CY2016Q1	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.60
CY2016Q2	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.60
CY2016Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.64
CY2016Q4	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.67
CY2016	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	2.50
CY2014	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.2450
CY2015	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.2487
CY2016	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.2807
CY2016Q4	us-gaap	Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized Share Based Awards Other Than Options EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedShareBasedAwardsOtherThanOptions	15700000	USD
CY2014	us-gaap	Excess Tax Benefit From Share Based Compensation Financing Activities ExcessTaxBenefitFromShareBasedCompensationFinancingActivities	4194000	USD
CY2015	us-gaap	Excess Tax Benefit From Share Based Compensation Financing Activities ExcessTaxBenefitFromShareBasedCompensationFinancingActivities	5874000	USD
CY2016	us-gaap	Excess Tax Benefit From Share Based Compensation Financing Activities ExcessTaxBenefitFromShareBasedCompensationFinancingActivities	0	USD
CY2014	us-gaap	Excess Tax Benefit From Share Based Compensation Operating Activities ExcessTaxBenefitFromShareBasedCompensationOperatingActivities	4194000	USD
CY2015	us-gaap	Excess Tax Benefit From Share Based Compensation Operating Activities ExcessTaxBenefitFromShareBasedCompensationOperatingActivities	5874000	USD
CY2016	us-gaap	Excess Tax Benefit From Share Based Compensation Operating Activities ExcessTaxBenefitFromShareBasedCompensationOperatingActivities	4075000	USD
CY2014	us-gaap	Fair Value Assets And Liabilities Measured On Recurring Basis Gain Loss Included In Earnings FairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisGainLossIncludedInEarnings	-284000	USD
CY2015	us-gaap	Fair Value Assets And Liabilities Measured On Recurring Basis Gain Loss Included In Earnings FairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisGainLossIncludedInEarnings	-2129000	USD
CY2016	us-gaap	Fair Value Assets And Liabilities Measured On Recurring Basis Gain Loss Included In Earnings FairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisGainLossIncludedInEarnings	-2805000	USD
CY2015Q4	us-gaap	Fair Value Disclosure Offbalance Sheet Risks Face Amount Liability FairValueDisclosureOffbalanceSheetRisksFaceAmountLiability	3733203000	USD
CY2016Q4	us-gaap	Fair Value Disclosure Offbalance Sheet Risks Face Amount Liability FairValueDisclosureOffbalanceSheetRisksFaceAmountLiability	4622607000	USD
CY2014	us-gaap	Fair Value Liabilities Measured On Recurring Basis Change In Unrealized Gain Loss FairValueLiabilitiesMeasuredOnRecurringBasisChangeInUnrealizedGainLoss	1380000	USD
CY2015	us-gaap	Fair Value Liabilities Measured On Recurring Basis Change In Unrealized Gain Loss FairValueLiabilitiesMeasuredOnRecurringBasisChangeInUnrealizedGainLoss	-6523000	USD
CY2016	us-gaap	Fair Value Liabilities Measured On Recurring Basis Change In Unrealized Gain Loss FairValueLiabilitiesMeasuredOnRecurringBasisChangeInUnrealizedGainLoss	-3500000	USD
CY2015Q4	us-gaap	Fair Value Liabilities Measured On Recurring Basis Subordinated Debt Obligations FairValueLiabilitiesMeasuredOnRecurringBasisSubordinatedDebtObligations	46928000	USD
CY2016Q4	us-gaap	Fair Value Liabilities Measured On Recurring Basis Subordinated Debt Obligations FairValueLiabilitiesMeasuredOnRecurringBasisSubordinatedDebtObligations	50410000	USD
CY2014	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Liability Gain Loss Included In Other Comprehensive Income FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityGainLossIncludedInOtherComprehensiveIncome	0	USD
CY2015	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Liability Gain Loss Included In Other Comprehensive Income FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityGainLossIncludedInOtherComprehensiveIncome	-4276000	USD
CY2016	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Liability Gain Loss Included In Other Comprehensive Income FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityGainLossIncludedInOtherComprehensiveIncome	-2077000	USD
CY2015	us-gaap	Federal Home Loan Bank Advances Activity For Year Average Interest Rate For Year FederalHomeLoanBankAdvancesActivityForYearAverageInterestRateForYear	0.0036
CY2016	us-gaap	Federal Home Loan Bank Advances Activity For Year Average Interest Rate For Year FederalHomeLoanBankAdvancesActivityForYearAverageInterestRateForYear	0.0055
CY2015Q4	us-gaap	Federal Home Loan Bank Advances Maturities Summary Due Within One Year Of Balance Sheet Date FederalHomeLoanBankAdvancesMaturitiesSummaryDueWithinOneYearOfBalanceSheetDate	150000000	USD
CY2016Q4	us-gaap	Federal Home Loan Bank Advances Maturities Summary Due Within One Year Of Balance Sheet Date FederalHomeLoanBankAdvancesMaturitiesSummaryDueWithinOneYearOfBalanceSheetDate	80000000	USD
CY2014	us-gaap	Fees And Commissions FeesAndCommissions	10567000	USD
CY2015	us-gaap	Fees And Commissions FeesAndCommissions	14782000	USD
CY2016	us-gaap	Fees And Commissions FeesAndCommissions	18824000	USD
CY2014	us-gaap	Fees And Commissions Credit And Debit Cards FeesAndCommissionsCreditAndDebitCards	3310000	USD
CY2015	us-gaap	Fees And Commissions Credit And Debit Cards FeesAndCommissionsCreditAndDebitCards	3679000	USD
CY2016	us-gaap	Fees And Commissions Credit And Debit Cards FeesAndCommissionsCreditAndDebitCards	4438000	USD
CY2013Q4	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	100050000	USD
CY2014Q4	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	110216000	USD
CY2015Q4	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	119068000	USD
CY2016Q4	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	124704000	USD
CY2015Q4	us-gaap	Financing Receivable Allowance For Credit Losses Collectively Evaluated For Impairment FinancingReceivableAllowanceForCreditLossesCollectivelyEvaluatedForImpairment	114374000	USD
CY2016Q4	us-gaap	Financing Receivable Allowance For Credit Losses Collectively Evaluated For Impairment FinancingReceivableAllowanceForCreditLossesCollectivelyEvaluatedForImpairment	118642000	USD
CY2015Q4	us-gaap	Financing Receivable Allowance For Credit Losses Individually Evaluated For Impairment1 FinancingReceivableAllowanceForCreditLossesIndividuallyEvaluatedForImpairment1	4658000	USD
CY2016Q4	us-gaap	Financing Receivable Allowance For Credit Losses Individually Evaluated For Impairment1 FinancingReceivableAllowanceForCreditLossesIndividuallyEvaluatedForImpairment1	4239000	USD
CY2014	us-gaap	Financing Receivable Allowance For Credit Losses Recovery FinancingReceivableAllowanceForCreditLossesRecovery	13102000	USD
CY2015	us-gaap	Financing Receivable Allowance For Credit Losses Recovery FinancingReceivableAllowanceForCreditLossesRecovery	12149000	USD
CY2016	us-gaap	Financing Receivable Allowance For Credit Losses Recovery FinancingReceivableAllowanceForCreditLossesRecovery	11185000	USD
CY2014	us-gaap	Financing Receivable Allowance For Credit Losses Write Offs FinancingReceivableAllowanceForCreditLossesWriteOffs	7662000	USD
CY2015	us-gaap	Financing Receivable Allowance For Credit Losses Write Offs FinancingReceivableAllowanceForCreditLossesWriteOffs	6497000	USD
CY2016	us-gaap	Financing Receivable Allowance For Credit Losses Write Offs FinancingReceivableAllowanceForCreditLossesWriteOffs	13549000	USD
CY2015Q4	us-gaap	Financing Receivable Collectively Evaluated For Impairment FinancingReceivableCollectivelyEvaluatedForImpairment	10901140000	USD
CY2016Q4	us-gaap	Financing Receivable Collectively Evaluated For Impairment FinancingReceivableCollectivelyEvaluatedForImpairment	12924164000	USD
CY2015Q4	us-gaap	Financing Receivable Individually Evaluated For Impairment FinancingReceivableIndividuallyEvaluatedForImpairment	128874000	USD
CY2016Q4	us-gaap	Financing Receivable Individually Evaluated For Impairment FinancingReceivableIndividuallyEvaluatedForImpairment	99209000	USD
CY2014	us-gaap	Financing Receivable Modifications Number Of Contracts2 FinancingReceivableModificationsNumberOfContracts2	24
CY2015	us-gaap	Financing Receivable Modifications Number Of Contracts2 FinancingReceivableModificationsNumberOfContracts2	3
CY2016	us-gaap	Financing Receivable Modifications Number Of Contracts2 FinancingReceivableModificationsNumberOfContracts2	2
CY2014	us-gaap	Financing Receivable Modifications Post Modification Recorded Investment2 FinancingReceivableModificationsPostModificationRecordedInvestment2	37671000	USD
CY2015	us-gaap	Financing Receivable Modifications Post Modification Recorded Investment2 FinancingReceivableModificationsPostModificationRecordedInvestment2	527000	USD
CY2016	us-gaap	Financing Receivable Modifications Post Modification Recorded Investment2 FinancingReceivableModificationsPostModificationRecordedInvestment2	2405000	USD
CY2014	us-gaap	Financing Receivable Modifications Pre Modification Recorded Investment2 FinancingReceivableModificationsPreModificationRecordedInvestment2	38930000	USD
CY2015	us-gaap	Financing Receivable Modifications Pre Modification Recorded Investment2 FinancingReceivableModificationsPreModificationRecordedInvestment2	530000	USD
CY2016	us-gaap	Financing Receivable Modifications Pre Modification Recorded Investment2 FinancingReceivableModificationsPreModificationRecordedInvestment2	2405000	USD
CY2014	us-gaap	Financing Receivable Modifications Subsequent Default Number Of Contracts1 FinancingReceivableModificationsSubsequentDefaultNumberOfContracts1	8
CY2015	us-gaap	Financing Receivable Modifications Subsequent Default Number Of Contracts1 FinancingReceivableModificationsSubsequentDefaultNumberOfContracts1	4
CY2016	us-gaap	Financing Receivable Modifications Subsequent Default Number Of Contracts1 FinancingReceivableModificationsSubsequentDefaultNumberOfContracts1	3
CY2014	us-gaap	Financing Receivable Modifications Subsequent Default Recorded Investment1 FinancingReceivableModificationsSubsequentDefaultRecordedInvestment1	1950000	USD
CY2015	us-gaap	Financing Receivable Modifications Subsequent Default Recorded Investment1 FinancingReceivableModificationsSubsequentDefaultRecordedInvestment1	1184000	USD
CY2016	us-gaap	Financing Receivable Modifications Subsequent Default Recorded Investment1 FinancingReceivableModificationsSubsequentDefaultRecordedInvestment1	5789000	USD
CY2015Q4	us-gaap	Financing Receivable Recorded Investment90 Days Past Due And Still Accruing FinancingReceivableRecordedInvestment90DaysPastDueAndStillAccruing	3028000	USD
CY2016Q4	us-gaap	Financing Receivable Recorded Investment90 Days Past Due And Still Accruing FinancingReceivableRecordedInvestment90DaysPastDueAndStillAccruing	1067000	USD
CY2015Q4	us-gaap	Financing Receivable Recorded Investment Current FinancingReceivableRecordedInvestmentCurrent	11046589000	USD
CY2016Q4	us-gaap	Financing Receivable Recorded Investment Current FinancingReceivableRecordedInvestmentCurrent	13166460000	USD
CY2015Q4	us-gaap	Financing Receivable Recorded Investment Nonaccrual Status FinancingReceivableRecordedInvestmentNonaccrualStatus	48381000	USD
CY2016Q4	us-gaap	Financing Receivable Recorded Investment Nonaccrual Status FinancingReceivableRecordedInvestmentNonaccrualStatus	40272000	USD
CY2015Q4	us-gaap	Financing Receivable Recorded Investment Past Due FinancingReceivableRecordedInvestmentPastDue	66265000	USD
CY2016Q4	us-gaap	Financing Receivable Recorded Investment Past Due FinancingReceivableRecordedInvestmentPastDue	23067000	USD
CY2015	us-gaap	Financing Receivable Significant Sales FinancingReceivableSignificantSales	102200000	USD
CY2016	us-gaap	Financing Receivable Significant Sales FinancingReceivableSignificantSales	39300000	USD
CY2016Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense After Year Five FiniteLivedIntangibleAssetsAmortizationExpenseAfterYearFive	4436000	USD
CY2016Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Next Twelve Months FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths	2073000	USD
CY2016Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Five FiniteLivedIntangibleAssetsAmortizationExpenseYearFive	1433000	USD
CY2016Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Four FiniteLivedIntangibleAssetsAmortizationExpenseYearFour	1494000	USD
CY2016Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Three FiniteLivedIntangibleAssetsAmortizationExpenseYearThree	1547000	USD
CY2016Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Two FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo	1594000	USD
CY2016Q4	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	12577000	USD
CY2013Q4	us-gaap	Foreclosed Assets ForeclosedAssets	66719000	USD
CY2014Q4	us-gaap	Foreclosed Assets ForeclosedAssets	57150000	USD
CY2015Q4	us-gaap	Foreclosed Assets ForeclosedAssets	43942000	USD
CY2016Q4	us-gaap	Foreclosed Assets ForeclosedAssets	47815000	USD
CY2014	us-gaap	Gain Loss On Disposition Of Assets GainLossOnDispositionOfAssets	2778000	USD
CY2015	us-gaap	Gain Loss On Disposition Of Assets GainLossOnDispositionOfAssets	-376000	USD
CY2016	us-gaap	Gain Loss On Disposition Of Assets GainLossOnDispositionOfAssets	-21000	USD
CY2014	us-gaap	Gain Loss On Sale Of Investments GainLossOnSaleOfInvestments	757000	USD
CY2015	us-gaap	Gain Loss On Sale Of Investments GainLossOnSaleOfInvestments	615000	USD
CY2016	us-gaap	Gain Loss On Sale Of Investments GainLossOnSaleOfInvestments	1059000	USD
CY2014	us-gaap	Gain Loss On Sale Of Securities Net GainLossOnSaleOfSecuritiesNet	757000	USD
CY2015	us-gaap	Gain Loss On Sale Of Securities Net GainLossOnSaleOfSecuritiesNet	615000	USD
CY2016	us-gaap	Gain Loss On Sale Of Securities Net GainLossOnSaleOfSecuritiesNet	1059000	USD
CY2014	us-gaap	Gain Loss On Sales Of Loans Net GainLossOnSalesOfLoansNet	71000	USD
CY2015	us-gaap	Gain Loss On Sales Of Loans Net GainLossOnSalesOfLoansNet	517000	USD
CY2016	us-gaap	Gain Loss On Sales Of Loans Net GainLossOnSalesOfLoansNet	2492000	USD
CY2014	us-gaap	Gain On Sale Of Investments GainOnSaleOfInvestments	1118000	USD
CY2015	us-gaap	Gain On Sale Of Investments GainOnSaleOfInvestments	1144000	USD
CY2016	us-gaap	Gain On Sale Of Investments GainOnSaleOfInvestments	2115000	USD
CY2014	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	-502000	USD
CY2015	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	-81000	USD
CY2016	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	0	USD
CY2014	us-gaap	Gains Losses On Sales Of Other Real Estate GainsLossesOnSalesOfOtherRealEstate	2866000	USD
CY2015	us-gaap	Gains Losses On Sales Of Other Real Estate GainsLossesOnSalesOfOtherRealEstate	2628000	USD
CY2016	us-gaap	Gains Losses On Sales Of Other Real Estate GainsLossesOnSalesOfOtherRealEstate	-372000	USD
CY2014	us-gaap	General Insurance Expense GeneralInsuranceExpense	8862000	USD
CY2015	us-gaap	General Insurance Expense GeneralInsuranceExpense	11003000	USD
CY2016	us-gaap	General Insurance Expense GeneralInsuranceExpense	12898000	USD
CY2015Q4	us-gaap	Goodwill Goodwill	289638000	USD
CY2016Q4	us-gaap	Goodwill Goodwill	290000000	USD
CY2016Q4	us-gaap	Goodwill Goodwill	289967000	USD
CY2015Q4	us-gaap	Held To Maturity Securities HeldToMaturitySecurities	0	USD
CY2016Q4	us-gaap	Held To Maturity Securities HeldToMaturitySecurities	92079000	USD
CY2016Q4	us-gaap	Held To Maturity Securities Accumulated Unrecognized Holding Gain HeldToMaturitySecuritiesAccumulatedUnrecognizedHoldingGain	433000	USD
CY2016Q4	us-gaap	Held To Maturity Securities Accumulated Unrecognized Holding Loss HeldToMaturitySecuritiesAccumulatedUnrecognizedHoldingLoss	546000	USD
CY2016Q4	us-gaap	Held To Maturity Securities Continuous Unrealized Loss Position12 Months Or Longer Accumulated Loss HeldToMaturitySecuritiesContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss	0	USD
CY2016Q4	us-gaap	Held To Maturity Securities Continuous Unrealized Loss Position Accumulated Loss HeldToMaturitySecuritiesContinuousUnrealizedLossPositionAccumulatedLoss	546000	USD
CY2016Q4	us-gaap	Held To Maturity Securities Continuous Unrealized Loss Position Fair Value HeldToMaturitySecuritiesContinuousUnrealizedLossPositionFairValue	30364000	USD
CY2016Q4	us-gaap	Held To Maturity Securities Continuous Unrealized Loss Position Less Than12 Months Accumulated Loss HeldToMaturitySecuritiesContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss	546000	USD
CY2016Q4	us-gaap	Held To Maturity Securities Continuous Unrealized Loss Position Less Than Twelve Months Fair Value HeldToMaturitySecuritiesContinuousUnrealizedLossPositionLessThanTwelveMonthsFairValue	30364000	USD
CY2016Q4	us-gaap	Held To Maturity Securities Continuous Unrealized Loss Position Twelve Months Or Longer Fair Value HeldToMaturitySecuritiesContinuousUnrealizedLossPositionTwelveMonthsOrLongerFairValue	0	USD
CY2016Q4	us-gaap	Held To Maturity Securities Debt Maturities After Ten Years Fair Value HeldToMaturitySecuritiesDebtMaturitiesAfterTenYearsFairValue	91966000	USD
CY2016Q4	us-gaap	Held To Maturity Securities Debt Maturities After Ten Years Net Carrying Amount HeldToMaturitySecuritiesDebtMaturitiesAfterTenYearsNetCarryingAmount	92079000	USD
CY2016Q4	us-gaap	Held To Maturity Securities Fair Value HeldToMaturitySecuritiesFairValue	91966000	USD
CY2014Q4	us-gaap	Held To Maturity Securities Transferred Security At Carrying Value HeldToMaturitySecuritiesTransferredSecurityAtCarryingValue	275300000	USD
CY2015Q4	us-gaap	Held To Maturity Securities Transferred Security At Carrying Value HeldToMaturitySecuritiesTransferredSecurityAtCarryingValue	0	USD
CY2016Q4	us-gaap	Held To Maturity Securities Transferred Security At Carrying Value HeldToMaturitySecuritiesTransferredSecurityAtCarryingValue	0	USD
CY2014	us-gaap	Impaired Financing Receivable Average Recorded Investment ImpairedFinancingReceivableAverageRecordedInvestment	169758000	USD
CY2015	us-gaap	Impaired Financing Receivable Average Recorded Investment ImpairedFinancingReceivableAverageRecordedInvestment	150151000	USD
CY2016	us-gaap	Impaired Financing Receivable Average Recorded Investment ImpairedFinancingReceivableAverageRecordedInvestment	109461000	USD
CY2014	us-gaap	Impaired Financing Receivable Interest Income Accrual Method ImpairedFinancingReceivableInterestIncomeAccrualMethod	5494000	USD
CY2015	us-gaap	Impaired Financing Receivable Interest Income Accrual Method ImpairedFinancingReceivableInterestIncomeAccrualMethod	4794000	USD
CY2016	us-gaap	Impaired Financing Receivable Interest Income Accrual Method ImpairedFinancingReceivableInterestIncomeAccrualMethod	4167000	USD
CY2014	us-gaap	Impaired Financing Receivable Interest Income Cash Basis Method ImpairedFinancingReceivableInterestIncomeCashBasisMethod	2536000	USD
CY2015	us-gaap	Impaired Financing Receivable Interest Income Cash Basis Method ImpairedFinancingReceivableInterestIncomeCashBasisMethod	1634000	USD
CY2016	us-gaap	Impaired Financing Receivable Interest Income Cash Basis Method ImpairedFinancingReceivableInterestIncomeCashBasisMethod	1254000	USD
CY2015Q4	us-gaap	Impaired Financing Receivable Recorded Investment ImpairedFinancingReceivableRecordedInvestment	128874000	USD
CY2016Q4	us-gaap	Impaired Financing Receivable Recorded Investment ImpairedFinancingReceivableRecordedInvestment	99209000	USD
CY2015Q4	us-gaap	Impaired Financing Receivable Related Allowance ImpairedFinancingReceivableRelatedAllowance	4658000	USD
CY2016Q4	us-gaap	Impaired Financing Receivable Related Allowance ImpairedFinancingReceivableRelatedAllowance	4239000	USD
CY2015Q4	us-gaap	Impaired Financing Receivable With No Related Allowance Recorded Investment ImpairedFinancingReceivableWithNoRelatedAllowanceRecordedInvestment	104587000	USD
CY2016Q4	us-gaap	Impaired Financing Receivable With No Related Allowance Recorded Investment ImpairedFinancingReceivableWithNoRelatedAllowanceRecordedInvestment	88300000	USD
CY2015Q4	us-gaap	Impaired Financing Receivable With No Related Allowance Unpaid Principal Balance ImpairedFinancingReceivableWithNoRelatedAllowanceUnpaidPrincipalBalance	333268000	USD
CY2016Q4	us-gaap	Impaired Financing Receivable With No Related Allowance Unpaid Principal Balance ImpairedFinancingReceivableWithNoRelatedAllowanceUnpaidPrincipalBalance	164721000	USD
CY2015Q4	us-gaap	Impaired Financing Receivable With Related Allowance Recorded Investment ImpairedFinancingReceivableWithRelatedAllowanceRecordedInvestment	24287000	USD
CY2016Q4	us-gaap	Impaired Financing Receivable With Related Allowance Recorded Investment ImpairedFinancingReceivableWithRelatedAllowanceRecordedInvestment	10909000	USD
CY2015Q4	us-gaap	Impaired Financing Receivable With Related Allowance Unpaid Principal Balance ImpairedFinancingReceivableWithRelatedAllowanceUnpaidPrincipalBalance	25345000	USD
CY2016Q4	us-gaap	Impaired Financing Receivable With Related Allowance Unpaid Principal Balance ImpairedFinancingReceivableWithRelatedAllowanceUnpaidPrincipalBalance	11162000	USD
CY2014	us-gaap	Income Loss From Continuing Operations IncomeLossFromContinuingOperations	149109000	USD
CY2015Q1	us-gaap	Income Loss From Continuing Operations IncomeLossFromContinuingOperations	40383000	USD
CY2015Q2	us-gaap	Income Loss From Continuing Operations IncomeLossFromContinuingOperations	39475000	USD
CY2015Q3	us-gaap	Income Loss From Continuing Operations IncomeLossFromContinuingOperations	55860000	USD
CY2015Q4	us-gaap	Income Loss From Continuing Operations IncomeLossFromContinuingOperations	58526000	USD
CY2015	us-gaap	Income Loss From Continuing Operations IncomeLossFromContinuingOperations	194244000	USD
CY2016	us-gaap	Income Loss From Continuing Operations IncomeLossFromContinuingOperations	259798000	USD
CY2014	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	197499000	USD
CY2015Q1	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	54617000	USD
CY2015Q2	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	53054000	USD
CY2015Q3	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	72993000	USD
CY2015Q4	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	77874000	USD
CY2015	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	258538000	USD
CY2016Q1	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	80851000	USD
CY2016Q2	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	87941000	USD
CY2016Q3	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	96223000	USD
CY2016Q4	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	96164000	USD
CY2016	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	361179000	USD
CY2014	us-gaap	Income Loss From Continuing Operations Per Basic Share IncomeLossFromContinuingOperationsPerBasicShare	1.70
CY2015	us-gaap	Income Loss From Continuing Operations Per Basic Share IncomeLossFromContinuingOperationsPerBasicShare	2.05
CY2016	us-gaap	Income Loss From Continuing Operations Per Basic Share IncomeLossFromContinuingOperationsPerBasicShare	2.52
CY2014	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	1.69
CY2015	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	2.03
CY2016	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	2.50
CY2014	us-gaap	Income Loss From Discontinued Operations Net Of Tax Attributable To Reporting Entity IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity	-1158000	USD
CY2015	us-gaap	Income Loss From Discontinued Operations Net Of Tax Attributable To Reporting Entity IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity	0	USD
CY2016	us-gaap	Income Loss From Discontinued Operations Net Of Tax Attributable To Reporting Entity IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity	0	USD
CY2014	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Basic Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare	-0.01
CY2015	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Basic Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare	0.00
CY2016	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Basic Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare	0.00
CY2014	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Diluted Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare	-0.02
CY2015	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Diluted Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare	0.00
CY2016	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Diluted Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare	0.00
CY2014	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	48390000	USD
CY2015Q1	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	14234000	USD
CY2015Q2	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	13579000	USD
CY2015Q3	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	17133000	USD
CY2015Q4	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	19348000	USD
CY2015	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	64294000	USD
CY2016Q1	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	19519000	USD
CY2016Q2	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	26327000	USD
CY2016Q3	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	29171000	USD
CY2016Q4	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	26364000	USD
CY2016	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	101381000	USD
CY2014	us-gaap	Income Tax Reconciliation Change In Deferred Tax Assets Valuation Allowance IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance	-2104000	USD
CY2015	us-gaap	Income Tax Reconciliation Change In Deferred Tax Assets Valuation Allowance IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance	-2290000	USD
CY2016	us-gaap	Income Tax Reconciliation Change In Deferred Tax Assets Valuation Allowance IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance	0	USD
CY2014	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	69125000	USD
CY2015	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	90489000	USD
CY2016	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	126413000	USD
CY2014	us-gaap	Income Tax Reconciliation Nondeductible Expense Life Insurance IncomeTaxReconciliationNondeductibleExpenseLifeInsurance	-1578000	USD
CY2015	us-gaap	Income Tax Reconciliation Nondeductible Expense Life Insurance IncomeTaxReconciliationNondeductibleExpenseLifeInsurance	-1365000	USD
CY2016	us-gaap	Income Tax Reconciliation Nondeductible Expense Life Insurance IncomeTaxReconciliationNondeductibleExpenseLifeInsurance	-1317000	USD
CY2014	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	4904000	USD
CY2015	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	5783000	USD
CY2016	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	8046000	USD
CY2014	us-gaap	Income Tax Reconciliation Tax Exempt Income IncomeTaxReconciliationTaxExemptIncome	15006000	USD
CY2015	us-gaap	Income Tax Reconciliation Tax Exempt Income IncomeTaxReconciliationTaxExemptIncome	20226000	USD
CY2016	us-gaap	Income Tax Reconciliation Tax Exempt Income IncomeTaxReconciliationTaxExemptIncome	22425000	USD
CY2014	us-gaap	Income Taxes Paid IncomeTaxesPaid	35556000	USD
CY2015	us-gaap	Income Taxes Paid IncomeTaxesPaid	54590000	USD
CY2016	us-gaap	Income Taxes Paid IncomeTaxesPaid	61281000	USD
CY2016	us-gaap	Increase Decrease In Deferred Income Taxes IncreaseDecreaseInDeferredIncomeTaxes	-8800000	USD
CY2014	us-gaap	Increase Decrease In Deposits IncreaseDecreaseInDeposits	1093353000	USD
CY2015	us-gaap	Increase Decrease In Deposits IncreaseDecreaseInDeposits	1357855000	USD
CY2016	us-gaap	Increase Decrease In Deposits IncreaseDecreaseInDeposits	2519239000	USD
CY2014	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	-9313000	USD
CY2015	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	9482000	USD
CY2016	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	1666000	USD
CY2014	us-gaap	Increase Decrease In Other Operating Liabilities IncreaseDecreaseInOtherOperatingLiabilities	14971000	USD
CY2015	us-gaap	Increase Decrease In Other Operating Liabilities IncreaseDecreaseInOtherOperatingLiabilities	14231000	USD
CY2016	us-gaap	Increase Decrease In Other Operating Liabilities IncreaseDecreaseInOtherOperatingLiabilities	-2334000	USD
CY2015Q4	us-gaap	Indefinite Lived Trade Names IndefiniteLivedTradeNames	350000	USD
CY2016Q4	us-gaap	Indefinite Lived Trade Names IndefiniteLivedTradeNames	350000	USD
CY2014	us-gaap	Information Technology And Data Processing InformationTechnologyAndDataProcessing	10057000	USD
CY2015	us-gaap	Information Technology And Data Processing InformationTechnologyAndDataProcessing	13200000	USD
CY2016	us-gaap	Information Technology And Data Processing InformationTechnologyAndDataProcessing	18660000	USD
CY2015Q4	us-gaap	Intangible Assets Net Excluding Goodwill IntangibleAssetsNetExcludingGoodwill	15716000	USD
CY2016Q4	us-gaap	Intangible Assets Net Excluding Goodwill IntangibleAssetsNetExcludingGoodwill	12927000	USD
CY2015Q4	us-gaap	Intangible Assets Net Including Goodwill IntangibleAssetsNetIncludingGoodwill	305400000	USD
CY2016Q4	us-gaap	Intangible Assets Net Including Goodwill IntangibleAssetsNetIncludingGoodwill	302900000	USD
CY2014	us-gaap	Interest And Dividend Income Operating InterestAndDividendIncomeOperating	416379000	USD
CY2015Q1	us-gaap	Interest And Dividend Income Operating InterestAndDividendIncomeOperating	110962000	USD
CY2015Q2	us-gaap	Interest And Dividend Income Operating InterestAndDividendIncomeOperating	116618000	USD
CY2015Q3	us-gaap	Interest And Dividend Income Operating InterestAndDividendIncomeOperating	146233000	USD
CY2015Q4	us-gaap	Interest And Dividend Income Operating InterestAndDividendIncomeOperating	151331000	USD
CY2015	us-gaap	Interest And Dividend Income Operating InterestAndDividendIncomeOperating	525144000	USD
CY2016Q1	us-gaap	Interest And Dividend Income Operating InterestAndDividendIncomeOperating	154256000	USD
CY2016Q2	us-gaap	Interest And Dividend Income Operating InterestAndDividendIncomeOperating	174089000	USD
CY2016Q3	us-gaap	Interest And Dividend Income Operating InterestAndDividendIncomeOperating	184750000	USD
CY2016Q4	us-gaap	Interest And Dividend Income Operating InterestAndDividendIncomeOperating	187411000	USD
CY2016	us-gaap	Interest And Dividend Income Operating InterestAndDividendIncomeOperating	700506000	USD
CY2014	us-gaap	Interest And Dividend Income Securities InterestAndDividendIncomeSecurities	90000	USD
CY2015	us-gaap	Interest And Dividend Income Securities InterestAndDividendIncomeSecurities	54000	USD
CY2016	us-gaap	Interest And Dividend Income Securities InterestAndDividendIncomeSecurities	41000	USD
CY2014	us-gaap	Interest And Fee Income Loans And Leases InterestAndFeeIncomeLoansAndLeases	370922000	USD
CY2015	us-gaap	Interest And Fee Income Loans And Leases InterestAndFeeIncomeLoansAndLeases	476417000	USD
CY2016	us-gaap	Interest And Fee Income Loans And Leases InterestAndFeeIncomeLoansAndLeases	636596000	USD
CY2015Q4	us-gaap	Interest Bearing Deposit Liabilities InterestBearingDepositLiabilities	7936648000	USD
CY2016Q4	us-gaap	Interest Bearing Deposit Liabilities InterestBearingDepositLiabilities	8916937000	USD
CY2015Q4	us-gaap	Interest Bearing Deposits In Banks InterestBearingDepositsInBanks	90931000	USD
CY2016Q4	us-gaap	Interest Bearing Deposits In Banks InterestBearingDepositsInBanks	116425000	USD
CY2014	us-gaap	Interest Expense InterestExpense	31486000	USD
CY2015Q1	us-gaap	Interest Expense InterestExpense	7854000	USD
CY2015Q2	us-gaap	Interest Expense InterestExpense	7900000	USD
CY2015Q3	us-gaap	Interest Expense InterestExpense	8826000	USD
CY2015Q4	us-gaap	Interest Expense InterestExpense	7988000	USD
CY2015	us-gaap	Interest Expense InterestExpense	32568000	USD
CY2016Q1	us-gaap	Interest Expense InterestExpense	8545000	USD
CY2016Q2	us-gaap	Interest Expense InterestExpense	10403000	USD
CY2016Q3	us-gaap	Interest Expense InterestExpense	12203000	USD
CY2016Q4	us-gaap	Interest Expense InterestExpense	12142000	USD
CY2016	us-gaap	Interest Expense InterestExpense	43293000	USD
CY2014	us-gaap	Interest Expense Borrowings InterestExpenseBorrowings	9639000	USD
CY2015	us-gaap	Interest Expense Borrowings InterestExpenseBorrowings	5678000	USD
CY2016	us-gaap	Interest Expense Borrowings InterestExpenseBorrowings	508000	USD
CY2014	us-gaap	Interest Expense Debt InterestExpenseDebt	-1754000	USD
CY2015	us-gaap	Interest Expense Debt InterestExpenseDebt	2151000	USD
CY2016	us-gaap	Interest Expense Debt InterestExpenseDebt	2828000	USD
CY2014	us-gaap	Interest Expense Deposits InterestExpenseDeposits	20012000	USD
CY2015	us-gaap	Interest Expense Deposits InterestExpenseDeposits	21795000	USD
CY2016	us-gaap	Interest Expense Deposits InterestExpenseDeposits	29722000	USD
CY2014	us-gaap	Interest Expense Related Party InterestExpenseRelatedParty	200000	USD
CY2015	us-gaap	Interest Expense Related Party InterestExpenseRelatedParty	200000	USD
CY2016	us-gaap	Interest Expense Related Party InterestExpenseRelatedParty	200000	USD
CY2014	us-gaap	Interest Expense Securities Sold Under Agreements To Repurchase InterestExpenseSecuritiesSoldUnderAgreementsToRepurchase	81000	USD
CY2015	us-gaap	Interest Expense Securities Sold Under Agreements To Repurchase InterestExpenseSecuritiesSoldUnderAgreementsToRepurchase	88000	USD
CY2016	us-gaap	Interest Expense Securities Sold Under Agreements To Repurchase InterestExpenseSecuritiesSoldUnderAgreementsToRepurchase	65000	USD
CY2014	us-gaap	Interest Expense Subordinated Notes And Debentures InterestExpenseSubordinatedNotesAndDebentures	1754000	USD
CY2015	us-gaap	Interest Expense Subordinated Notes And Debentures InterestExpenseSubordinatedNotesAndDebentures	5007000	USD
CY2016	us-gaap	Interest Expense Subordinated Notes And Debentures InterestExpenseSubordinatedNotesAndDebentures	12998000	USD
CY2014	us-gaap	Interest Income Expense After Provision For Loan Loss InterestIncomeExpenseAfterProvisionForLoanLoss	380167000	USD
CY2015Q1	us-gaap	Interest Income Expense After Provision For Loan Loss InterestIncomeExpenseAfterProvisionForLoanLoss	102408000	USD
CY2015Q2	us-gaap	Interest Income Expense After Provision For Loan Loss InterestIncomeExpenseAfterProvisionForLoanLoss	108718000	USD
CY2015Q3	us-gaap	Interest Income Expense After Provision For Loan Loss InterestIncomeExpenseAfterProvisionForLoanLoss	137407000	USD
CY2015Q4	us-gaap	Interest Income Expense After Provision For Loan Loss InterestIncomeExpenseAfterProvisionForLoanLoss	140843000	USD
CY2015	us-gaap	Interest Income Expense After Provision For Loan Loss InterestIncomeExpenseAfterProvisionForLoanLoss	489376000	USD
CY2016Q1	us-gaap	Interest Income Expense After Provision For Loan Loss InterestIncomeExpenseAfterProvisionForLoanLoss	143211000	USD
CY2016Q2	us-gaap	Interest Income Expense After Provision For Loan Loss InterestIncomeExpenseAfterProvisionForLoanLoss	161186000	USD
CY2016Q3	us-gaap	Interest Income Expense After Provision For Loan Loss InterestIncomeExpenseAfterProvisionForLoanLoss	170547000	USD
CY2016Q4	us-gaap	Interest Income Expense After Provision For Loan Loss InterestIncomeExpenseAfterProvisionForLoanLoss	174269000	USD
CY2016	us-gaap	Interest Income Expense After Provision For Loan Loss InterestIncomeExpenseAfterProvisionForLoanLoss	649213000	USD
CY2014	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	384893000	USD
CY2015Q1	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	103108000	USD
CY2015Q2	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	108718000	USD
CY2015Q3	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	137407000	USD
CY2015Q4	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	143343000	USD
CY2015	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	492576000	USD
CY2016Q1	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	145711000	USD
CY2016Q2	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	163686000	USD
CY2016Q3	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	172547000	USD
CY2016Q4	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	175269000	USD
CY2016	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	657213000	USD
CY2014	us-gaap	Interest Income Related Party InterestIncomeRelatedParty	1900000	USD
CY2015	us-gaap	Interest Income Related Party InterestIncomeRelatedParty	2700000	USD
CY2016	us-gaap	Interest Income Related Party InterestIncomeRelatedParty	600000	USD
CY2014	us-gaap	Interest Income Securities Taxable InterestIncomeSecuritiesTaxable	38603000	USD
CY2015	us-gaap	Interest Income Securities Taxable InterestIncomeSecuritiesTaxable	37888000	USD
CY2016	us-gaap	Interest Income Securities Taxable InterestIncomeSecuritiesTaxable	52570000	USD
CY2014	us-gaap	Interest Paid InterestPaid	26516000	USD
CY2015	us-gaap	Interest Paid InterestPaid	28831000	USD
CY2016	us-gaap	Interest Paid InterestPaid	41565000	USD
CY2015Q4	us-gaap	Junior Subordinated Debenture Owed To Unconsolidated Subsidiary Trust JuniorSubordinatedDebentureOwedToUnconsolidatedSubsidiaryTrust	58370000	USD
CY2016Q4	us-gaap	Junior Subordinated Debenture Owed To Unconsolidated Subsidiary Trust JuniorSubordinatedDebentureOwedToUnconsolidatedSubsidiaryTrust	62161000	USD
CY2014	us-gaap	Labor And Related Expense LaborAndRelatedExpense	126630000	USD
CY2015	us-gaap	Labor And Related Expense LaborAndRelatedExpense	149828000	USD
CY2016	us-gaap	Labor And Related Expense LaborAndRelatedExpense	188810000	USD
CY2015Q4	us-gaap	Land And Land Improvements LandAndLandImprovements	33971000	USD
CY2016Q4	us-gaap	Land And Land Improvements LandAndLandImprovements	33309000	USD
CY2015Q4	us-gaap	Leasehold Improvements Gross LeaseholdImprovementsGross	18958000	USD
CY2016Q4	us-gaap	Leasehold Improvements Gross LeaseholdImprovementsGross	22709000	USD
CY2015Q4	us-gaap	Liabilities Liabilities	12683587000	USD
CY2015Q4	us-gaap	Liabilities Liabilities	12683600000	USD
CY2016Q4	us-gaap	Liabilities Liabilities	15309300000	USD
CY2016Q4	us-gaap	Liabilities Liabilities	15309313000	USD
CY2015Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	14275089000	USD
CY2015Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	14275100000	USD
CY2016Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	17200842000	USD
CY2016Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	17200800000	USD
CY2015Q4	us-gaap	Life Insurance Corporate Or Bank Owned Amount LifeInsuranceCorporateOrBankOwnedAmount	361700000	USD
CY2016Q4	us-gaap	Life Insurance Corporate Or Bank Owned Amount LifeInsuranceCorporateOrBankOwnedAmount	360300000	USD
CY2016	us-gaap	Line Of Credit Facility Expiration Period LineOfCreditFacilityExpirationPeriod	P1Y
CY2016Q4	us-gaap	Lines Of Credit Current LinesOfCreditCurrent	0	USD
CY2015Q4	us-gaap	Loans And Leases Receivable Allowance LoansAndLeasesReceivableAllowance	119100000	USD
CY2015Q4	us-gaap	Loans And Leases Receivable Allowance LoansAndLeasesReceivableAllowance	119068000	USD
CY2016Q4	us-gaap	Loans And Leases Receivable Allowance LoansAndLeasesReceivableAllowance	124700000	USD
CY2016Q4	us-gaap	Loans And Leases Receivable Allowance LoansAndLeasesReceivableAllowance	124704000	USD
CY2015Q4	us-gaap	Loans And Leases Receivable Deferred Income LoansAndLeasesReceivableDeferredIncome	19200000	USD
CY2016Q4	us-gaap	Loans And Leases Receivable Deferred Income LoansAndLeasesReceivableDeferredIncome	22300000	USD
CY2015	us-gaap	Loans And Leases Receivable Gain Loss On Sales Net LoansAndLeasesReceivableGainLossOnSalesNet	500000	USD
CY2016	us-gaap	Loans And Leases Receivable Gain Loss On Sales Net LoansAndLeasesReceivableGainLossOnSalesNet	2500000	USD
CY2015Q4	us-gaap	Loans And Leases Receivable Gross Carrying Amount LoansAndLeasesReceivableGrossCarryingAmount	11112854000	USD
CY2016Q4	us-gaap	Loans And Leases Receivable Gross Carrying Amount LoansAndLeasesReceivableGrossCarryingAmount	13189527000	USD
CY2014	us-gaap	Loans And Leases Receivable Impaired Interest Lost On Nonaccrual Loans LoansAndLeasesReceivableImpairedInterestLostOnNonaccrualLoans	3800000	USD
CY2015	us-gaap	Loans And Leases Receivable Impaired Interest Lost On Nonaccrual Loans LoansAndLeasesReceivableImpairedInterestLostOnNonaccrualLoans	2500000	USD
CY2016	us-gaap	Loans And Leases Receivable Impaired Interest Lost On Nonaccrual Loans LoansAndLeasesReceivableImpairedInterestLostOnNonaccrualLoans	2000000	USD
CY2015Q4	us-gaap	Loans And Leases Receivable Net Of Deferred Income LoansAndLeasesReceivableNetOfDeferredIncome	11112854000	USD
CY2016Q4	us-gaap	Loans And Leases Receivable Net Of Deferred Income LoansAndLeasesReceivableNetOfDeferredIncome	13189527000	USD
CY2015Q4	us-gaap	Loans And Leases Receivable Net Reported Amount LoansAndLeasesReceivableNetReportedAmount	10993786000	USD
CY2016Q4	us-gaap	Loans And Leases Receivable Net Reported Amount LoansAndLeasesReceivableNetReportedAmount	13064823000	USD
CY2014Q4	us-gaap	Loans And Leases Receivable Related Parties LoansAndLeasesReceivableRelatedParties	70570000	USD
CY2015Q4	us-gaap	Loans And Leases Receivable Related Parties LoansAndLeasesReceivableRelatedParties	74381000	USD
CY2016Q4	us-gaap	Loans And Leases Receivable Related Parties LoansAndLeasesReceivableRelatedParties	16874000	USD
CY2014	us-gaap	Loss On Sale Of Investments LossOnSaleOfInvestments	361000	USD
CY2015	us-gaap	Loss On Sale Of Investments LossOnSaleOfInvestments	529000	USD
CY2016	us-gaap	Loss On Sale Of Investments LossOnSaleOfInvestments	1056000	USD
CY2014	us-gaap	Marketing Expense MarketingExpense	2300000	USD
CY2015	us-gaap	Marketing Expense MarketingExpense	2885000	USD
CY2016	us-gaap	Marketing Expense MarketingExpense	3596000	USD
CY2015Q4	us-gaap	Money Market Funds At Carrying Value MoneyMarketFundsAtCarryingValue	122000	USD
CY2016Q4	us-gaap	Money Market Funds At Carrying Value MoneyMarketFundsAtCarryingValue	0	USD
CY2014	us-gaap	Mortgage Loans On Real Estate Foreclosures MortgageLoansOnRealEstateForeclosures	13777000	USD
CY2015	us-gaap	Mortgage Loans On Real Estate Foreclosures MortgageLoansOnRealEstateForeclosures	28566000	USD
CY2016	us-gaap	Mortgage Loans On Real Estate Foreclosures MortgageLoansOnRealEstateForeclosures	13110000	USD
CY2014	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	1077494000	USD
CY2015	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	1206272000	USD
CY2016	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	2669439000	USD
CY2014	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-1386013000	USD
CY2015	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-1366443000	USD
CY2016	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-2890233000	USD
CY2014	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	167401000	USD
CY2015	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	220415000	USD
CY2016	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	280645000	USD
CY2015	us-gaap	Net Income Loss NetIncomeLoss	194244000	USD
CY2014	us-gaap	Net Income Loss NetIncomeLoss	147951000	USD
CY2015	us-gaap	Net Income Loss NetIncomeLoss	194244000	USD
CY2016	us-gaap	Net Income Loss NetIncomeLoss	259798000	USD
CY2014	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	146564000	USD
CY2015Q1	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	40207000	USD
CY2015Q2	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	39228000	USD
CY2015Q3	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	55684000	USD
CY2015Q4	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	58375000	USD
CY2015	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	193494000	USD
CY2016Q1	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	61332000	USD
CY2016Q2	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	61614000	USD
CY2016Q3	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	67052000	USD
CY2016Q4	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	69800000	USD
CY2016	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	259798000	USD
CY2014	us-gaap	Noncash Or Part Noncash Acquisition Value Of Assets Acquired1 NoncashOrPartNoncashAcquisitionValueOfAssetsAcquired1	0	USD
CY2015	us-gaap	Noncash Or Part Noncash Acquisition Value Of Assets Acquired1 NoncashOrPartNoncashAcquisitionValueOfAssetsAcquired1	1587186000	USD
CY2016	us-gaap	Noncash Or Part Noncash Acquisition Value Of Assets Acquired1 NoncashOrPartNoncashAcquisitionValueOfAssetsAcquired1	1284557000	USD
CY2014	us-gaap	Noncash Or Part Noncash Acquisition Value Of Liabilities Assumed1 NoncashOrPartNoncashAcquisitionValueOfLiabilitiesAssumed1	0	USD
CY2015	us-gaap	Noncash Or Part Noncash Acquisition Value Of Liabilities Assumed1 NoncashOrPartNoncashAcquisitionValueOfLiabilitiesAssumed1	1764996000	USD
CY2016	us-gaap	Noncash Or Part Noncash Acquisition Value Of Liabilities Assumed1 NoncashOrPartNoncashAcquisitionValueOfLiabilitiesAssumed1	12559000	USD
CY2015Q4	us-gaap	Noninterest Bearing Deposit Liabilities NoninterestBearingDepositLiabilities	4093976000	USD
CY2016Q4	us-gaap	Noninterest Bearing Deposit Liabilities NoninterestBearingDepositLiabilities	5632926000	USD
CY2014	us-gaap	Noninterest Expense NoninterestExpense	207319000	USD
CY2015Q1	us-gaap	Noninterest Expense NoninterestExpense	54033000	USD
CY2015Q2	us-gaap	Noninterest Expense NoninterestExpense	61209000	USD
CY2015Q3	us-gaap	Noninterest Expense NoninterestExpense	72916000	USD
CY2015Q4	us-gaap	Noninterest Expense NoninterestExpense	72448000	USD
CY2015	us-gaap	Noninterest Expense NoninterestExpense	260606000	USD
CY2016Q1	us-gaap	Noninterest Expense NoninterestExpense	75493000	USD
CY2016Q2	us-gaap	Noninterest Expense NoninterestExpense	81804000	USD
CY2016Q3	us-gaap	Noninterest Expense NoninterestExpense	85007000	USD
CY2016Q4	us-gaap	Noninterest Expense NoninterestExpense	88645000	USD
CY2016	us-gaap	Noninterest Expense NoninterestExpense	330949000	USD
CY2014	us-gaap	Noninterest Income NoninterestIncome	24651000	USD
CY2016	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesTax	15099000	USD
CY2014	us-gaap	Other Comprehensive Income Loss Before Reclassifications Net Of Tax OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax	29683000	USD
CY2015	us-gaap	Other Comprehensive Income Loss Before Reclassifications Net Of Tax OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax	-10303000	USD
CY2015Q1	us-gaap	Noninterest Income NoninterestIncome	6242000	USD
CY2015Q2	us-gaap	Noninterest Income NoninterestIncome	5545000	USD
CY2015Q3	us-gaap	Noninterest Income NoninterestIncome	8502000	USD
CY2015Q4	us-gaap	Noninterest Income NoninterestIncome	9479000	USD
CY2015	us-gaap	Noninterest Income NoninterestIncome	29768000	USD
CY2016Q1	us-gaap	Noninterest Income NoninterestIncome	13133000	USD
CY2016Q2	us-gaap	Noninterest Income NoninterestIncome	8559000	USD
CY2016Q3	us-gaap	Noninterest Income NoninterestIncome	10683000	USD
CY2016Q4	us-gaap	Noninterest Income NoninterestIncome	10540000	USD
CY2016	us-gaap	Noninterest Income NoninterestIncome	42915000	USD
CY2014	us-gaap	Noninterest Income Other Operating Income NoninterestIncomeOtherOperatingIncome	4728000	USD
CY2015	us-gaap	Noninterest Income Other Operating Income NoninterestIncomeOtherOperatingIncome	4879000	USD
CY2016	us-gaap	Noninterest Income Other Operating Income NoninterestIncomeOtherOperatingIncome	6836000	USD
CY2015Q4	us-gaap	Notes Receivable Net NotesReceivableNet	11112854000	USD
CY2016Q4	us-gaap	Notes Receivable Net NotesReceivableNet	13189527000	USD
CY2015Q4	us-gaap	Number Of Real Estate Properties NumberOfRealEstateProperties	39	Property
CY2016Q4	us-gaap	Number Of Real Estate Properties NumberOfRealEstateProperties	31	Property
CY2014	us-gaap	Occupancy Net OccupancyNet	18155000	USD
CY2015	us-gaap	Occupancy Net OccupancyNet	22180000	USD
CY2016	us-gaap	Occupancy Net OccupancyNet	27303000	USD
CY2016Q4	us-gaap	Operating Leases Future Minimum Payments Due OperatingLeasesFutureMinimumPaymentsDue	49587000	USD
CY2016Q4	us-gaap	Operating Leases Future Minimum Payments Due Current OperatingLeasesFutureMinimumPaymentsDueCurrent	11024000	USD
CY2016Q4	us-gaap	Operating Leases Future Minimum Payments Due In Five Years OperatingLeasesFutureMinimumPaymentsDueInFiveYears	4439000	USD
CY2016Q4	us-gaap	Operating Leases Future Minimum Payments Due In Four Years OperatingLeasesFutureMinimumPaymentsDueInFourYears	7537000	USD
CY2016Q4	us-gaap	Operating Leases Future Minimum Payments Due In Three Years OperatingLeasesFutureMinimumPaymentsDueInThreeYears	9310000	USD
CY2016Q4	us-gaap	Operating Leases Future Minimum Payments Due In Two Years OperatingLeasesFutureMinimumPaymentsDueInTwoYears	10271000	USD
CY2016Q4	us-gaap	Operating Leases Future Minimum Payments Due Thereafter OperatingLeasesFutureMinimumPaymentsDueThereafter	7006000	USD
CY2014	us-gaap	Operating Leases Rent Expense Net OperatingLeasesRentExpenseNet	6200000	USD
CY2015	us-gaap	Operating Leases Rent Expense Net OperatingLeasesRentExpenseNet	8100000	USD
CY2016	us-gaap	Operating Leases Rent Expense Net OperatingLeasesRentExpenseNet	11000000	USD
CY2016Q4	us-gaap	Operating Loss Carryforwards Valuation Allowance OperatingLossCarryforwardsValuationAllowance	0	USD
CY2015	us-gaap	Origination Of Notes Receivable From Related Parties OriginationOfNotesReceivableFromRelatedParties	10678000	USD
CY2016	us-gaap	Origination Of Notes Receivable From Related Parties OriginationOfNotesReceivableFromRelatedParties	637000	USD
CY2015Q4	us-gaap	Other Assets OtherAssets	273976000	USD
CY2016Q4	us-gaap	Other Assets OtherAssets	334612000	USD
CY2015Q4	us-gaap	Other Borrowings OtherBorrowings	150000000	USD
CY2016Q4	us-gaap	Other Borrowings OtherBorrowings	80000000	USD
CY2016Q4	us-gaap	Other Commitment Due After Fifth Year OtherCommitmentDueAfterFifthYear	410473000	USD
CY2016Q4	us-gaap	Other Commitment Due In Fourth And Fifth Year OtherCommitmentDueInFourthAndFifthYear	321253000	USD
CY2016Q4	us-gaap	Other Commitment Due In Next Twelve Months OtherCommitmentDueInNextTwelveMonths	2304448000	USD
CY2016Q4	us-gaap	Other Commitment Due In Second And Third Year OtherCommitmentDueInSecondAndThirdYear	1586433000	USD
	us-gaap	Other Comprehensive Income Defined Benefit Plans Adjustment Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeDefinedBenefitPlansAdjustmentNetOfTaxPortionAttributableToParent	42000	USD
CY2016	us-gaap	Other Comprehensive Income Defined Benefit Plans Adjustment Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeDefinedBenefitPlansAdjustmentNetOfTaxPortionAttributableToParent	1000	USD
CY2014	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesTax	-17749000	USD
CY2015	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesTax	3922000	USD
CY2015	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Net Of Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax	-90000	USD
CY2016	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Net Of Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax	-31000	USD
CY2014	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansTax	0	USD
CY2016	us-gaap	Other Comprehensive Income Loss Before Reclassifications Net Of Tax OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax	-26209000	USD
CY2015	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-10688000	USD
CY2014	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	38185000	USD
CY2015	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-10688000	USD
CY2016	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-26955000	USD
CY2014	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Net Of Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax	0	USD
CY2015	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansTax	-52000	USD
CY2016	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansTax	-18000	USD
CY2014	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax	474000	USD
CY2015	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax	385000	USD
CY2016	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax	655000	USD
CY2014	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesTax	283000	USD
CY2015	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesTax	230000	USD
CY2016	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesTax	404000	USD
CY2014	us-gaap	Other Comprehensive Income Loss Transfers From Held To Maturity To Available For Sale Securities Net Of Tax OtherComprehensiveIncomeLossTransfersFromHeldToMaturityToAvailableForSaleSecuritiesNetOfTax	8976000	USD
CY2015	us-gaap	Other Comprehensive Income Loss Transfers From Held To Maturity To Available For Sale Securities Net Of Tax OtherComprehensiveIncomeLossTransfersFromHeldToMaturityToAvailableForSaleSecuritiesNetOfTax	0	USD
CY2016	us-gaap	Other Comprehensive Income Loss Transfers From Held To Maturity To Available For Sale Securities Net Of Tax OtherComprehensiveIncomeLossTransfersFromHeldToMaturityToAvailableForSaleSecuritiesNetOfTax	0	USD
CY2014	us-gaap	Other Comprehensive Income Reclassification Adjustment For Held To Maturity Transferred To Available For Sale Securities Tax OtherComprehensiveIncomeReclassificationAdjustmentForHeldToMaturityTransferredToAvailableForSaleSecuritiesTax	-5367000	USD
CY2015	us-gaap	Other Comprehensive Income Reclassification Adjustment For Held To Maturity Transferred To Available For Sale Securities Tax OtherComprehensiveIncomeReclassificationAdjustmentForHeldToMaturityTransferredToAvailableForSaleSecuritiesTax	0	USD
CY2016	us-gaap	Other Comprehensive Income Reclassification Adjustment For Held To Maturity Transferred To Available For Sale Securities Tax OtherComprehensiveIncomeReclassificationAdjustmentForHeldToMaturityTransferredToAvailableForSaleSecuritiesTax	0	USD
CY2014	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax	29683000	USD
CY2015	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax	-6117000	USD
CY2016	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax	-24254000	USD
CY2015Q4	us-gaap	Other Foreclosed Assets OtherForeclosedAssets	43900000	USD
CY2016Q4	us-gaap	Other Foreclosed Assets OtherForeclosedAssets	47800000	USD
CY2014	us-gaap	Other Interest And Dividend Income OtherInterestAndDividendIncome	292000	USD
CY2015	us-gaap	Other Interest And Dividend Income OtherInterestAndDividendIncome	522000	USD
CY2016	us-gaap	Other Interest And Dividend Income OtherInterestAndDividendIncome	2338000	USD
CY2015Q4	us-gaap	Other Liabilities OtherLiabilities	254480000	USD
CY2016Q4	us-gaap	Other Liabilities OtherLiabilities	269785000	USD
CY2014	us-gaap	Other Noninterest Expense OtherNoninterestExpense	23888000	USD
CY2015	us-gaap	Other Noninterest Expense OtherNoninterestExpense	27085000	USD
CY2016	us-gaap	Other Noninterest Expense OtherNoninterestExpense	34062000	USD
CY2014	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
CY2015	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
CY2016	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
CY2014	us-gaap	Payments For Proceeds From Loans And Leases PaymentsForProceedsFromLoansAndLeases	1560633000	USD
CY2015	us-gaap	Payments For Proceeds From Loans And Leases PaymentsForProceedsFromLoansAndLeases	1269351000	USD
CY2016	us-gaap	Payments For Proceeds From Loans And Leases PaymentsForProceedsFromLoansAndLeases	810543000	USD
CY2014	us-gaap	Payments For Proceeds From Productive Assets PaymentsForProceedsFromProductiveAssets	13925000	USD
CY2015	us-gaap	Payments For Proceeds From Productive Assets PaymentsForProceedsFromProductiveAssets	10856000	USD
CY2016	us-gaap	Payments For Proceeds From Productive Assets PaymentsForProceedsFromProductiveAssets	10574000	USD
CY2014	us-gaap	Payments Of Debt Extinguishment Costs PaymentsOfDebtExtinguishmentCosts	6501000	USD
CY2015	us-gaap	Payments Of Debt Extinguishment Costs PaymentsOfDebtExtinguishmentCosts	0	USD
CY2016	us-gaap	Payments Of Debt Extinguishment Costs PaymentsOfDebtExtinguishmentCosts	0	USD
CY2014	us-gaap	Payments Of Dividends Preferred Stock And Preference Stock PaymentsOfDividendsPreferredStockAndPreferenceStock	1387000	USD
CY2015	us-gaap	Payments Of Dividends Preferred Stock And Preference Stock PaymentsOfDividendsPreferredStockAndPreferenceStock	750000	USD
CY2016	us-gaap	Payments Of Dividends Preferred Stock And Preference Stock PaymentsOfDividendsPreferredStockAndPreferenceStock	0	USD
CY2014	us-gaap	Payments To Acquire Available For Sale Securities PaymentsToAcquireAvailableForSaleSecurities	143052000	USD
CY2015	us-gaap	Payments To Acquire Available For Sale Securities PaymentsToAcquireAvailableForSaleSecurities	827002000	USD
CY2016	us-gaap	Payments To Acquire Available For Sale Securities PaymentsToAcquireAvailableForSaleSecurities	1205057000	USD
CY2014	us-gaap	Payments To Acquire Held To Maturity Securities PaymentsToAcquireHeldToMaturitySecurities	0	USD
CY2015	us-gaap	Payments To Acquire Held To Maturity Securities PaymentsToAcquireHeldToMaturitySecurities	0	USD
CY2016	us-gaap	Payments To Acquire Held To Maturity Securities PaymentsToAcquireHeldToMaturitySecurities	92384000	USD
CY2015Q4	us-gaap	Pledged Financial Instruments Not Separately Reported Other Debt Securities Available For Sale Or Held For Investment PledgedFinancialInstrumentsNotSeparatelyReportedOtherDebtSecuritiesAvailableForSaleOrHeldForInvestment	830700000	USD
CY2016Q4	us-gaap	Pledged Financial Instruments Not Separately Reported Other Debt Securities Available For Sale Or Held For Investment PledgedFinancialInstrumentsNotSeparatelyReportedOtherDebtSecuritiesAvailableForSaleOrHeldForInvestment	763000000	USD
CY2014	us-gaap	Preferred Stock Dividends And Other Adjustments PreferredStockDividendsAndOtherAdjustments	1387000	USD
CY2015Q1	us-gaap	Preferred Stock Dividends And Other Adjustments PreferredStockDividendsAndOtherAdjustments	176000	USD
CY2015Q2	us-gaap	Preferred Stock Dividends And Other Adjustments PreferredStockDividendsAndOtherAdjustments	247000	USD
CY2015Q3	us-gaap	Preferred Stock Dividends And Other Adjustments PreferredStockDividendsAndOtherAdjustments	176000	USD
CY2015Q4	us-gaap	Preferred Stock Dividends And Other Adjustments PreferredStockDividendsAndOtherAdjustments	151000	USD
CY2015	us-gaap	Preferred Stock Dividends And Other Adjustments PreferredStockDividendsAndOtherAdjustments	750000	USD
CY2016	us-gaap	Preferred Stock Dividends And Other Adjustments PreferredStockDividendsAndOtherAdjustments	0	USD
CY2015Q4	us-gaap	Preferred Stock Liquidation Preference PreferredStockLiquidationPreference	1000
CY2016Q4	us-gaap	Preferred Stock Liquidation Preference PreferredStockLiquidationPreference	1000
CY2015Q4	us-gaap	Preferred Stock Par Or Stated Value Per Share PreferredStockParOrStatedValuePerShare	0.0001
CY2016Q4	us-gaap	Preferred Stock Par Or Stated Value Per Share PreferredStockParOrStatedValuePerShare	0.0001
CY2015Q4	us-gaap	Preferred Stock Redemption Amount PreferredStockRedemptionAmount	70700000	USD
CY2015Q4	us-gaap	Preferred Stock Redemption Amount PreferredStockRedemptionAmount	70700000	USD
CY2015Q4	us-gaap	Preferred Stock Shares Authorized PreferredStockSharesAuthorized	20000000	shares
CY2016Q4	us-gaap	Preferred Stock Shares Authorized PreferredStockSharesAuthorized	20000000	shares
CY2015Q4	us-gaap	Preferred Stock Shares Issued PreferredStockSharesIssued	0	shares
CY2016Q4	us-gaap	Preferred Stock Shares Issued PreferredStockSharesIssued	0	shares
CY2015Q4	us-gaap	Preferred Stock Shares Outstanding PreferredStockSharesOutstanding	0	shares
CY2016Q4	us-gaap	Preferred Stock Shares Outstanding PreferredStockSharesOutstanding	0	shares
CY2014	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	13746000	USD
CY2015	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	28288000	USD
CY2016	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	55785000	USD
CY2014	us-gaap	Proceeds From Issuance Of Subordinated Long Term Debt ProceedsFromIssuanceOfSubordinatedLongTermDebt	0	USD
CY2015	us-gaap	Proceeds From Issuance Of Subordinated Long Term Debt ProceedsFromIssuanceOfSubordinatedLongTermDebt	148211000	USD
CY2016	us-gaap	Proceeds From Issuance Of Subordinated Long Term Debt ProceedsFromIssuanceOfSubordinatedLongTermDebt	169256000	USD
CY2014	us-gaap	Proceeds From Life Insurance Policies ProceedsFromLifeInsurancePolicies	1046000	USD
CY2015	us-gaap	Proceeds From Life Insurance Policies ProceedsFromLifeInsurancePolicies	797000	USD
CY2016	us-gaap	Proceeds From Life Insurance Policies ProceedsFromLifeInsurancePolicies	1710000	USD
CY2014	us-gaap	Proceeds From Maturities Prepayments And Calls Of Available For Sale Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities	226455000	USD
CY2015	us-gaap	Proceeds From Maturities Prepayments And Calls Of Available For Sale Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities	273950000	USD
CY2016	us-gaap	Proceeds From Maturities Prepayments And Calls Of Available For Sale Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities	499541000	USD
CY2014	us-gaap	Proceeds From Maturities Prepayments And Calls Of Other Investments ProceedsFromMaturitiesPrepaymentsAndCallsOfOtherInvestments	1144000	USD
CY2015	us-gaap	Proceeds From Maturities Prepayments And Calls Of Other Investments ProceedsFromMaturitiesPrepaymentsAndCallsOfOtherInvestments	347000	USD
CY2016	us-gaap	Proceeds From Maturities Prepayments And Calls Of Other Investments ProceedsFromMaturitiesPrepaymentsAndCallsOfOtherInvestments	395000	USD
CY2014	us-gaap	Proceeds From Repayments Of Debt ProceedsFromRepaymentsOfDebt	40407000	USD
CY2015	us-gaap	Proceeds From Repayments Of Debt ProceedsFromRepaymentsOfDebt	-257038000	USD
CY2016	us-gaap	Proceeds From Repayments Of Debt ProceedsFromRepaymentsOfDebt	-66428000	USD
CY2014	us-gaap	Proceeds From Sale And Maturity Of Held To Maturity Securities ProceedsFromSaleAndMaturityOfHeldToMaturitySecurities	6600000	USD
CY2015	us-gaap	Proceeds From Sale And Maturity Of Held To Maturity Securities ProceedsFromSaleAndMaturityOfHeldToMaturitySecurities	0	USD
CY2016	us-gaap	Proceeds From Sale And Maturity Of Held To Maturity Securities ProceedsFromSaleAndMaturityOfHeldToMaturitySecurities	94000	USD
CY2014	us-gaap	Proceeds From Sale Of Available For Sale Securities ProceedsFromSaleOfAvailableForSaleSecurities	95826000	USD
CY2015	us-gaap	Proceeds From Sale Of Available For Sale Securities ProceedsFromSaleOfAvailableForSaleSecurities	132546000	USD
CY2016	us-gaap	Proceeds From Sale Of Available For Sale Securities ProceedsFromSaleOfAvailableForSaleSecurities	25504000	USD
CY2014	us-gaap	Proceeds From Sale Of Foreclosed Assets ProceedsFromSaleOfForeclosedAssets	25918000	USD
CY2015	us-gaap	Proceeds From Sale Of Foreclosed Assets ProceedsFromSaleOfForeclosedAssets	45627000	USD
CY2016	us-gaap	Proceeds From Sale Of Foreclosed Assets ProceedsFromSaleOfForeclosedAssets	9133000	USD
CY2014	us-gaap	Proceeds From Sale Of Restricted Investments ProceedsFromSaleOfRestrictedInvestments	4911000	USD
CY2015	us-gaap	Proceeds From Sale Of Restricted Investments ProceedsFromSaleOfRestrictedInvestments	-25821000	USD
CY2016	us-gaap	Proceeds From Sale Of Restricted Investments ProceedsFromSaleOfRestrictedInvestments	-7139000	USD
CY2014	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	8294000	USD
CY2015	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	1935000	USD
CY2016	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	1070000	USD
CY2015Q4	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	178384000	USD
CY2016Q4	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	189819000	USD
CY2015Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	118535000	USD
CY2016Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	119833000	USD
CY2014	us-gaap	Provision For Loan Lease And Other Losses ProvisionForLoanLeaseAndOtherLosses	4726000	USD
CY2015Q1	us-gaap	Provision For Loan Lease And Other Losses ProvisionForLoanLeaseAndOtherLosses	700000	USD
CY2015Q2	us-gaap	Provision For Loan Lease And Other Losses ProvisionForLoanLeaseAndOtherLosses	0	USD
CY2015Q3	us-gaap	Provision For Loan Lease And Other Losses ProvisionForLoanLeaseAndOtherLosses	0	USD
CY2015Q4	us-gaap	Provision For Loan Lease And Other Losses ProvisionForLoanLeaseAndOtherLosses	2500000	USD
CY2015	us-gaap	Provision For Loan Lease And Other Losses ProvisionForLoanLeaseAndOtherLosses	3200000	USD
CY2016Q1	us-gaap	Provision For Loan Lease And Other Losses ProvisionForLoanLeaseAndOtherLosses	2500000	USD
CY2016Q2	us-gaap	Provision For Loan Lease And Other Losses ProvisionForLoanLeaseAndOtherLosses	2500000	USD
CY2016Q3	us-gaap	Provision For Loan Lease And Other Losses ProvisionForLoanLeaseAndOtherLosses	2000000	USD
CY2016Q4	us-gaap	Provision For Loan Lease And Other Losses ProvisionForLoanLeaseAndOtherLosses	1000000	USD
CY2016	us-gaap	Provision For Loan Lease And Other Losses ProvisionForLoanLeaseAndOtherLosses	8000000	USD
CY2013Q4	us-gaap	Real Estate Owned Valuation Allowance RealEstateOwnedValuationAllowance	21702000	USD
CY2014Q4	us-gaap	Real Estate Owned Valuation Allowance RealEstateOwnedValuationAllowance	14271000	USD
CY2015Q4	us-gaap	Real Estate Owned Valuation Allowance RealEstateOwnedValuationAllowance	9042000	USD
CY2016Q4	us-gaap	Real Estate Owned Valuation Allowance RealEstateOwnedValuationAllowance	6323000	USD
CY2015Q4	us-gaap	Receivable With Imputed Interest Discount ReceivableWithImputedInterestDiscount	8200000	USD
CY2016Q4	us-gaap	Receivable With Imputed Interest Discount ReceivableWithImputedInterestDiscount	5200000	USD
CY2014	us-gaap	Reclassification From Accumulated Other Comprehensive Income Current Period Net Of Tax ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax	474000	USD
CY2015	us-gaap	Reclassification From Accumulated Other Comprehensive Income Current Period Net Of Tax ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax	385000	USD
CY2016	us-gaap	Reclassification From Accumulated Other Comprehensive Income Current Period Net Of Tax ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax	746000	USD
CY2015Q4	us-gaap	Related Party Deposit Liabilities RelatedPartyDepositLiabilities	76000000	USD
CY2016Q4	us-gaap	Related Party Deposit Liabilities RelatedPartyDepositLiabilities	97300000	USD
CY2015Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	19.15
CY2014	us-gaap	Related Party Transaction Expenses From Transactions With Related Party RelatedPartyTransactionExpensesFromTransactionsWithRelatedParty	2000000	USD
CY2015	us-gaap	Related Party Transaction Expenses From Transactions With Related Party RelatedPartyTransactionExpensesFromTransactionsWithRelatedParty	1000000	USD
CY2016	us-gaap	Related Party Transaction Expenses From Transactions With Related Party RelatedPartyTransactionExpensesFromTransactionsWithRelatedParty	1000000	USD
CY2015	us-gaap	Repayment Of Notes Receivable From Related Parties RepaymentOfNotesReceivableFromRelatedParties	-25481000	USD
CY2016	us-gaap	Repayment Of Notes Receivable From Related Parties RepaymentOfNotesReceivableFromRelatedParties	-60124000	USD
CY2015Q4	us-gaap	Restricted Investments RestrictedInvestments	58111000	USD
CY2016Q4	us-gaap	Restricted Investments RestrictedInvestments	65249000	USD
CY2015	us-gaap	Restricted Stock Award Forfeitures RestrictedStockAwardForfeitures	7603000	USD
CY2014	us-gaap	Restricted Stock Award Forfeitures RestrictedStockAwardForfeitures	4112000	USD
CY2016	us-gaap	Restricted Stock Award Forfeitures RestrictedStockAwardForfeitures	9483000	USD
CY2015Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	262638000	USD
CY2016Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	522436000	USD
CY2015Q4	us-gaap	Securities Sold Under Agreements To Repurchase SecuritiesSoldUnderAgreementsToRepurchase	38155000	USD
CY2016Q4	us-gaap	Securities Sold Under Agreements To Repurchase SecuritiesSoldUnderAgreementsToRepurchase	41728000	USD
CY2014	us-gaap	Share Based Compensation ShareBasedCompensation	16577000	USD
CY2015	us-gaap	Share Based Compensation ShareBasedCompensation	25533000	USD
CY2016	us-gaap	Share Based Compensation ShareBasedCompensation	20338000	USD
CY2015	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Forfeited In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod	85000	shares
CY2016	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Forfeited In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod	121000	shares
CY2015	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Forfeitures Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresWeightedAverageGrantDateFairValue	21.63
CY2016	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Forfeitures Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresWeightedAverageGrantDateFairValue	23.65
CY2015	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Grants In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod	509000	shares
CY2016	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Grants In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod	478000	shares
CY2015	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Grants In Period Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue	27.55
CY2016	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Grants In Period Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue	32.00
CY2014Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Nonvested Number ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber	1050000	shares
CY2015Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Nonvested Number ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber	1492000	shares
CY2016Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Nonvested Number ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber	1278000	shares
CY2014Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Nonvested Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue	16.19
CY2015Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Nonvested Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue	20.46
CY2016Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Nonvested Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue	26.02
CY2015	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Vested In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod	528000	shares
CY2016	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Vested In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod	571000	shares
CY2015	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Vested In Period Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue	13.02
CY2016	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Vested In Period Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue	16.95
CY2016Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Number Of Shares Available For Grant ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant	3700000	shares
CY2016Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber	64000	shares
CY2016Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice	17.30
CY2014	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercises In Period Total Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue	7100000	USD
CY2015	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercises In Period Total Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue	3600000	USD
CY2016	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercises In Period Total Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue	1700000	USD
CY2016	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresInPeriod	10000	shares
CY2016	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriod	0	shares
CY2016Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue	3704000	USD
CY2015Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	224000	shares
CY2016Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	137000	shares
CY2016Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	21.70
CY2016Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Vested And Expected To Vest Outstanding Aggregate Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingAggregateIntrinsicValue	2316000	USD
CY2016Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Vested And Expected To Vest Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingNumber	56000	shares
CY2016Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Vested And Expected To Vest Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingWeightedAverageExercisePrice	25.56
CY2016	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Exercises In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice	13.93
CY2016	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Forfeitures In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsForfeituresInPeriodWeightedAverageExercisePrice	24.48
CY2016	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Grants In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice	0
CY2016Q4	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Exercisable Intrinsic Value1 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1	2020000	USD
CY2016	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Exercisable Weighted Average Remaining Contractual Term1 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableWeightedAverageRemainingContractualTerm1	P5Y10M10D
CY2016	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Outstanding Weighted Average Remaining Contractual Term2 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2	P6Y9M4D
CY2016	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Vested And Expected To Vest Exercisable Weighted Average Remaining Contractual Term1 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedAndExpectedToVestExercisableWeightedAverageRemainingContractualTerm1	P7Y6M22D
CY2016	us-gaap	Sharebased Compensation Shares Authorized Under Stock Option Plans Exercise Price Range Outstanding Options Weighted Average Remaining Contractual Term2 SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeOutstandingOptionsWeightedAverageRemainingContractualTerm2	P1Y9M25D
CY2015Q4	us-gaap	Short Term Borrowings ShortTermBorrowings	150000000	USD
CY2016Q4	us-gaap	Short Term Borrowings ShortTermBorrowings	80000000	USD
CY2016	us-gaap	Stock Issued During Period Shares Stock Options Exercised StockIssuedDuringPeriodSharesStockOptionsExercised	77000	shares
CY2015	us-gaap	Stock Issued During Period Value New Issues StockIssuedDuringPeriodValueNewIssues	28288000	USD
CY2014	us-gaap	Stock Issued During Period Value New Issues StockIssuedDuringPeriodValueNewIssues	13746000	USD
CY2016	us-gaap	Stock Issued During Period Value New Issues StockIssuedDuringPeriodValueNewIssues	55785000	USD
CY2015	us-gaap	Stock Issued During Period Value Restricted Stock Award Net Of Forfeitures StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures	24617000	USD
CY2014	us-gaap	Stock Issued During Period Value Restricted Stock Award Net Of Forfeitures StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures	13253000	USD
CY2016	us-gaap	Stock Issued During Period Value Restricted Stock Award Net Of Forfeitures StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures	19812000	USD
CY2015	us-gaap	Stock Issued During Period Value Stock Options Exercised StockIssuedDuringPeriodValueStockOptionsExercised	1935000	USD
CY2014	us-gaap	Stock Issued During Period Value Stock Options Exercised StockIssuedDuringPeriodValueStockOptionsExercised	8294000	USD
CY2016	us-gaap	Stock Issued During Period Value Stock Options Exercised StockIssuedDuringPeriodValueStockOptionsExercised	1070000	USD
CY2014	us-gaap	Stock Redeemed Or Called During Period Shares StockRedeemedOrCalledDuringPeriodShares	70500	shares
CY2015	us-gaap	Stock Redeemed Or Called During Period Shares StockRedeemedOrCalledDuringPeriodShares	70500	shares
CY2015	us-gaap	Stock Redeemed Or Called During Period Value StockRedeemedOrCalledDuringPeriodValue	70500000	USD
CY2014	us-gaap	Stock Redeemed Or Called During Period Value StockRedeemedOrCalledDuringPeriodValue	70500000	USD
CY2013Q4	us-gaap	Stockholders Equity StockholdersEquity	855498000	USD
CY2014Q4	us-gaap	Stockholders Equity StockholdersEquity	1000928000	USD
CY2015Q4	us-gaap	Stockholders Equity StockholdersEquity	1591500000	USD
CY2015Q4	us-gaap	Stockholders Equity StockholdersEquity	1591502000	USD
CY2016Q4	us-gaap	Stockholders Equity StockholdersEquity	1891500000	USD
CY2016Q4	us-gaap	Stockholders Equity StockholdersEquity	1891529000	USD
CY2015Q1	us-gaap	Stockholders Equity StockholdersEquity	1000928000	USD
CY2015Q4	us-gaap	Subordinated Debt SubordinatedDebt	152000000	USD
CY2016Q4	us-gaap	Subordinated Debt SubordinatedDebt	305800000	USD
CY2015Q4	us-gaap	Tier One Leverage Capital Required For Capital Adequacy To Average Assets TierOneLeverageCapitalRequiredForCapitalAdequacyToAverageAssets	0.040
CY2016Q4	us-gaap	Tier One Leverage Capital Required For Capital Adequacy To Average Assets TierOneLeverageCapitalRequiredForCapitalAdequacyToAverageAssets	0.040
CY2015Q4	us-gaap	Tier One Leverage Capital Required To Be Well Capitalized To Average Assets TierOneLeverageCapitalRequiredToBeWellCapitalizedToAverageAssets	0.050
CY2016Q4	us-gaap	Tier One Leverage Capital Required To Be Well Capitalized To Average Assets TierOneLeverageCapitalRequiredToBeWellCapitalizedToAverageAssets	0.050
CY2015Q4	us-gaap	Tier One Risk Based Capital Required For Capital Adequacy To Risk Weighted Assets TierOneRiskBasedCapitalRequiredForCapitalAdequacyToRiskWeightedAssets	0.060
CY2016Q4	us-gaap	Tier One Risk Based Capital Required For Capital Adequacy To Risk Weighted Assets TierOneRiskBasedCapitalRequiredForCapitalAdequacyToRiskWeightedAssets	0.060
CY2015Q4	us-gaap	Tier One Risk Based Capital Required To Be Well Capitalized To Risk Weighted Assets TierOneRiskBasedCapitalRequiredToBeWellCapitalizedToRiskWeightedAssets	0.080
CY2016Q4	us-gaap	Tier One Risk Based Capital Required To Be Well Capitalized To Risk Weighted Assets TierOneRiskBasedCapitalRequiredToBeWellCapitalizedToRiskWeightedAssets	0.080
CY2016Q4	us-gaap	Time Deposit Maturities Year Five TimeDepositMaturitiesYearFive	3440000	USD
CY2016Q4	us-gaap	Time Deposit Maturities Year Four TimeDepositMaturitiesYearFour	3886000	USD
CY2016Q4	us-gaap	Time Deposit Maturities Year One TimeDepositMaturitiesYearOne	1331419000	USD
CY2016Q4	us-gaap	Time Deposit Maturities Year Three TimeDepositMaturitiesYearThree	19508000	USD
CY2016Q4	us-gaap	Time Deposit Maturities Year Two TimeDepositMaturitiesYearTwo	91089000	USD
CY2016Q4	us-gaap	Time Deposits TimeDeposits	1449342000	USD
CY2015Q4	us-gaap	Trade And Loans Receivables Held For Sale Net Not Part Of Disposal Group TradeAndLoansReceivablesHeldForSaleNetNotPartOfDisposalGroup	23809000	USD
CY2016Q4	us-gaap	Trade And Loans Receivables Held For Sale Net Not Part Of Disposal Group TradeAndLoansReceivablesHeldForSaleNetNotPartOfDisposalGroup	18909000	USD
CY2015Q4	us-gaap	Trading Securities TradingSecurities	1481000	USD
CY2016Q4	us-gaap	Trading Securities TradingSecurities	1053000	USD
CY2015Q4	us-gaap	Treasury Stock Value TreasuryStockValue	16879000	USD
CY2016Q4	us-gaap	Treasury Stock Value TreasuryStockValue	26362000	USD
CY2014Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	0	USD
CY2015Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	1038000	USD
CY2016Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	1038000	USD
CY2015	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Current Period Tax Positions UnrecognizedTaxBenefitsDecreasesResultingFromCurrentPeriodTaxPositions	0	USD
CY2016	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Current Period Tax Positions UnrecognizedTaxBenefitsDecreasesResultingFromCurrentPeriodTaxPositions	0	USD
CY2015	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions	0	USD
CY2016	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions	0	USD
CY2015	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Settlements With Taxing Authorities UnrecognizedTaxBenefitsDecreasesResultingFromSettlementsWithTaxingAuthorities	0	USD
CY2016	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Settlements With Taxing Authorities UnrecognizedTaxBenefitsDecreasesResultingFromSettlementsWithTaxingAuthorities	0	USD
CY2015Q4	us-gaap	Unrecognized Tax Benefits Income Tax Penalties Accrued UnrecognizedTaxBenefitsIncomeTaxPenaltiesAccrued	0.1	USD
CY2014	us-gaap	Unrecognized Tax Benefits Income Tax Penalties Expense UnrecognizedTaxBenefitsIncomeTaxPenaltiesExpense	0.0	USD
CY2015	us-gaap	Unrecognized Tax Benefits Income Tax Penalties Expense UnrecognizedTaxBenefitsIncomeTaxPenaltiesExpense	0.1	USD
CY2015	us-gaap	Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions	1038000	USD
CY2016	us-gaap	Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions	0	USD
CY2015Q4	us-gaap	Unrecognized Tax Benefits Interest On Income Taxes Accrued UnrecognizedTaxBenefitsInterestOnIncomeTaxesAccrued	0.1	USD
CY2015	us-gaap	Unrecognized Tax Benefits Reductions Resulting From Lapse Of Applicable Statute Of Limitations UnrecognizedTaxBenefitsReductionsResultingFromLapseOfApplicableStatuteOfLimitations	0	USD
CY2016	us-gaap	Unrecognized Tax Benefits Reductions Resulting From Lapse Of Applicable Statute Of Limitations UnrecognizedTaxBenefitsReductionsResultingFromLapseOfApplicableStatuteOfLimitations	0	USD
CY2016Q4	us-gaap	Unrecognized Tax Benefits That Would Impact Effective Tax Rate UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate	700000	USD
CY2014	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	87506000	shares
CY2015	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	95219000	shares
CY2016	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	103843000	shares
CY2014	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	86693000	shares
CY2015	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	94570000	shares
CY2016	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	103042000	shares
CY2014	wal	Accretion And Amortization Fair Market Value Adjustments Relating To Acquisitionsof Loans AccretionAndAmortizationFairMarketValueAdjustmentsRelatingToAcquisitionsofLoans	17014000	USD
CY2015	wal	Accretion And Amortization Fair Market Value Adjustments Relating To Acquisitionsof Loans AccretionAndAmortizationFairMarketValueAdjustmentsRelatingToAcquisitionsofLoans	17144000	USD
CY2016	wal	Accretion And Amortization Fair Market Value Adjustments Relating To Acquisitionsof Loans AccretionAndAmortizationFairMarketValueAdjustmentsRelatingToAcquisitionsofLoans	29209000	USD
CY2014	wal	Accretionand Amortization Fair Market Value Adjustments Relatingto Acquisitionsof Other Assetsand Liabilities AccretionandAmortizationFairMarketValueAdjustmentsRelatingtoAcquisitionsofOtherAssetsandLiabilities	552000	USD
CY2015	wal	Accretionand Amortization Fair Market Value Adjustments Relatingto Acquisitionsof Other Assetsand Liabilities AccretionandAmortizationFairMarketValueAdjustmentsRelatingtoAcquisitionsofOtherAssetsandLiabilities	-1279000	USD
CY2016	wal	Accretionand Amortization Fair Market Value Adjustments Relatingto Acquisitionsof Other Assetsand Liabilities AccretionandAmortizationFairMarketValueAdjustmentsRelatingtoAcquisitionsofOtherAssetsandLiabilities	-3098000	USD
CY2016Q4	wal	Additional Collateral Amount AdditionalCollateralAmount	70700000	USD
CY2014	wal	Amortizationof Low Income Housing Tax Credits AmortizationofLowIncomeHousingTaxCredits	10600000	USD
CY2015Q3	wal	Amortizationof Low Income Housing Tax Credits AmortizationofLowIncomeHousingTaxCredits	4100000000	USD
CY2015	wal	Amortizationof Low Income Housing Tax Credits AmortizationofLowIncomeHousingTaxCredits	14400000	USD
CY2016	wal	Amortizationof Low Income Housing Tax Credits AmortizationofLowIncomeHousingTaxCredits	17300000	USD
CY2015Q4	wal	Borrowingsand Qualifying Debt BorrowingsandQualifyingDebt	360300000	USD
CY2016Q4	wal	Borrowingsand Qualifying Debt BorrowingsandQualifyingDebt	447900000	USD
CY2015Q4	wal	Brokered Deposits Regulatory BrokeredDepositsRegulatory	365600000	USD
CY2016Q4	wal	Brokered Deposits Regulatory BrokeredDepositsRegulatory	571900000	USD
CY2015Q4	wal	Business Combination Fair Market Value Adjustmenton Junior Subordinated Debenture Owedto Unconsolidated Subsidiary Trust BusinessCombinationFairMarketValueAdjustmentonJuniorSubordinatedDebentureOwedtoUnconsolidatedSubsidiaryTrust	-6085000	USD
CY2016Q2	wal	Business Combination Fair Market Value Adjustmenton Junior Subordinated Debenture Owedto Unconsolidated Subsidiary Trust BusinessCombinationFairMarketValueAdjustmentonJuniorSubordinatedDebentureOwedtoUnconsolidatedSubsidiaryTrust	6200000	USD
CY2016Q4	wal	Business Combination Fair Market Value Adjustmenton Junior Subordinated Debenture Owedto Unconsolidated Subsidiary Trust BusinessCombinationFairMarketValueAdjustmentonJuniorSubordinatedDebentureOwedtoUnconsolidatedSubsidiaryTrust	-5776000	USD
CY2014	wal	Cardexpense Cardexpense	2417000	USD
CY2015	wal	Cardexpense Cardexpense	2764000	USD
CY2016	wal	Cardexpense Cardexpense	2936000	USD
CY2015Q4	wal	Cash Cash Equivalentsand Investment Securities CashCashEquivalentsandInvestmentSecurities	2266800000	USD
CY2016Q4	wal	Cash Cash Equivalentsand Investment Securities CashCashEquivalentsandInvestmentSecurities	3052300000	USD
CY2016Q2	wal	Cash Paymentfor Vested Stock Options CashPaymentforVestedStockOptions	6200000	USD
CY2015Q4	wal	Certificatesof Deposit Cdars CertificatesofDepositCDARS	517500000	USD
CY2016Q4	wal	Certificatesof Deposit Cdars CertificatesofDepositCDARS	413900000	USD
CY2014	wal	Change In Fair Value Of Assets And Liabilities Measured At Fair Value ChangeInFairValueOfAssetsAndLiabilitiesMeasuredAtFairValue	1212000	USD
CY2015	wal	Change In Fair Value Of Assets And Liabilities Measured At Fair Value ChangeInFairValueOfAssetsAndLiabilitiesMeasuredAtFairValue	47000	USD
CY2016	wal	Change In Fair Value Of Assets And Liabilities Measured At Fair Value ChangeInFairValueOfAssetsAndLiabilitiesMeasuredAtFairValue	45000	USD
CY2014	wal	Changein Unfunded Obligations Non Cash ChangeinUnfundedObligationsNonCash	-28522000	USD
CY2015	wal	Changein Unfunded Obligations Non Cash ChangeinUnfundedObligationsNonCash	-27325000	USD
CY2016	wal	Changein Unfunded Obligations Non Cash ChangeinUnfundedObligationsNonCash	21225000	USD
CY2014Q4	wal	Collateral Netted Against Derivative Liabilities CollateralNettedAgainstDerivativeLiabilities	57800000	USD
CY2015Q4	wal	Collateral Netted Against Derivative Liabilities CollateralNettedAgainstDerivativeLiabilities	61700000	USD
CY2016Q4	wal	Collateral Netted Against Derivative Liabilities CollateralNettedAgainstDerivativeLiabilities	65700000	USD
CY2015Q4	wal	Common Equity Tier One Required For Capital Adequacy CommonEquityTierOneRequiredForCapitalAdequacy	0.045
CY2016Q4	wal	Common Equity Tier One Required For Capital Adequacy CommonEquityTierOneRequiredForCapitalAdequacy	0.045
CY2015Q4	wal	Common Equity Tier One Required To Be Well Capitalized CommonEquityTierOneRequiredToBeWellCapitalized	0.065
CY2016Q4	wal	Common Equity Tier One Required To Be Well Capitalized CommonEquityTierOneRequiredToBeWellCapitalized	0.065
CY2015Q4	wal	Deferred Tax Assets Fair Market Value Adjustment Relatedto Acquired Loans DeferredTaxAssetsFairMarketValueAdjustmentRelatedtoAcquiredLoans	13930000	USD
CY2016Q4	wal	Deferred Tax Assets Fair Market Value Adjustment Relatedto Acquired Loans DeferredTaxAssetsFairMarketValueAdjustmentRelatedtoAcquiredLoans	7941000	USD
CY2015Q4	wal	Deferred Tax Assets Net Unrealized Built In Losses DeferredTaxAssetsNetUnrealizedBuiltInLosses	3284000	USD
CY2016Q4	wal	Deferred Tax Assets Net Unrealized Built In Losses DeferredTaxAssetsNetUnrealizedBuiltInLosses	3251000	USD
CY2015Q4	wal	Deferred Tax Assets Other Real Estate Owned Write Down DeferredTaxAssetsOtherRealEstateOwnedWriteDown	4280000	USD
CY2016Q4	wal	Deferred Tax Assets Other Real Estate Owned Write Down DeferredTaxAssetsOtherRealEstateOwnedWriteDown	3230000	USD
CY2015Q4	wal	Deferred Tax Assets Start Up Costsand Other Amortization DeferredTaxAssetsStartUpCostsandOtherAmortization	4771000	USD
CY2016Q4	wal	Deferred Tax Assets Start Up Costsand Other Amortization DeferredTaxAssetsStartUpCostsandOtherAmortization	4216000	USD
CY2015Q4	wal	Deferred Tax Liabilities Unrealized Gains On Available For Sale Securities DeferredTaxLiabilitiesUnrealizedGainsOnAvailableForSaleSecurities	6353000	USD
CY2016Q4	wal	Deferred Tax Liabilities Unrealized Gains On Available For Sale Securities DeferredTaxLiabilitiesUnrealizedGainsOnAvailableForSaleSecurities	0	USD
CY2015Q4	wal	Deferred Tax Liabilities Unrealized Gainson Debt Instruments Measuredat Fair Value DeferredTaxLiabilitiesUnrealizedGainsonDebtInstrumentsMeasuredatFairValue	7537000	USD
CY2016Q4	wal	Deferred Tax Liabilities Unrealized Gainson Debt Instruments Measuredat Fair Value DeferredTaxLiabilitiesUnrealizedGainsonDebtInstrumentsMeasuredatFairValue	6132000	USD
CY2015Q4	wal	Deferred Tax Liabilities Unrealized Gainson Financial Instruments Measuredat Fair Value DeferredTaxLiabilitiesUnrealizedGainsonFinancialInstrumentsMeasuredatFairValue	1000000	USD
CY2016Q4	wal	Deferred Tax Liabilities Unrealized Gainson Financial Instruments Measuredat Fair Value DeferredTaxLiabilitiesUnrealizedGainsonFinancialInstrumentsMeasuredatFairValue	2200000	USD
CY2016	wal	Defined Benefit Plan Service Cost Currentand Prior DefinedBenefitPlanServiceCostCurrentandPrior	680000	USD
CY2016	wal	Defined Contribution Plan Age Of Participants DefinedContributionPlanAgeOfParticipants	P50Y
CY2016	wal	Defined Contribution Plan Initial Percentage Of Discretionary Deferred Compensation DefinedContributionPlanInitialPercentageOfDiscretionaryDeferredCompensation	0.06
CY2016	wal	Defined Contribution Plan Percentage Of Discretionary Deferred Compensation DefinedContributionPlanPercentageOfDiscretionaryDeferredCompensation	0.50
CY2015Q4	wal	Deposits Ics DepositsICS	714400000	USD
CY2016Q4	wal	Deposits Ics DepositsICS	607500000	USD
CY2014Q4	wal	Derivative Instruments Notional Amount Netting Adjustments DerivativeInstrumentsNotionalAmountNettingAdjustments	0	USD
CY2015Q4	wal	Derivative Instruments Notional Amount Netting Adjustments DerivativeInstrumentsNotionalAmountNettingAdjustments	0	USD
CY2016Q4	wal	Derivative Instruments Notional Amount Netting Adjustments DerivativeInstrumentsNotionalAmountNettingAdjustments	0	USD
CY2014Q4	wal	Derivative Netting Adjustments DerivativeNettingAdjustments	0	USD
CY2015Q4	wal	Derivative Netting Adjustments DerivativeNettingAdjustments	0	USD
CY2016Q4	wal	Derivative Netting Adjustments DerivativeNettingAdjustments	-1869000	USD
CY2014	wal	Dilutive Effect Of Stock Options Restricted Stock And Equity Settled Awards DilutiveEffectOfStockOptionsRestrictedStockAndEquitySettledAwards	813000	shares
CY2015	wal	Dilutive Effect Of Stock Options Restricted Stock And Equity Settled Awards DilutiveEffectOfStockOptionsRestrictedStockAndEquitySettledAwards	649000	shares
CY2016	wal	Dilutive Effect Of Stock Options Restricted Stock And Equity Settled Awards DilutiveEffectOfStockOptionsRestrictedStockAndEquitySettledAwards	801000	shares
CY2015Q4	wal	Excess Funds Providedby Usedin Segment Basis ExcessFundsProvidedbyUsedinSegmentBasis	0	USD
CY2016Q4	wal	Excess Funds Providedby Usedin Segment Basis ExcessFundsProvidedbyUsedinSegmentBasis	0	USD
CY2015Q4	wal	Financing Receivable Unpaid Principal Balance FinancingReceivableUnpaidPrincipalBalance	11379517000	USD
CY2016Q4	wal	Financing Receivable Unpaid Principal Balance FinancingReceivableUnpaidPrincipalBalance	13301721000	USD
CY2015Q4	wal	Financing Receivable Unpaid Principal Balance Collectively Evaluated For Impairment FinancingReceivableUnpaidPrincipalBalanceCollectivelyEvaluatedForImpairment	10901140000	USD
CY2016Q4	wal	Financing Receivable Unpaid Principal Balance Collectively Evaluated For Impairment FinancingReceivableUnpaidPrincipalBalanceCollectivelyEvaluatedForImpairment	12924164000	USD
CY2014	wal	Financing Receivable Waived Fees And Other Expenses FinancingReceivableWaivedFeesAndOtherExpenses	67000	USD
CY2015	wal	Financing Receivable Waived Fees And Other Expenses FinancingReceivableWaivedFeesAndOtherExpenses	4000	USD
CY2016	wal	Financing Receivable Waived Fees And Other Expenses FinancingReceivableWaivedFeesAndOtherExpenses	0	USD
CY2014	wal	Financing Receivables Impaired Troubled Debt Restructuring Write Down Due To Interest Concessions FinancingReceivablesImpairedTroubledDebtRestructuringWriteDownDueToInterestConcessions	434000	USD
CY2015	wal	Financing Receivables Impaired Troubled Debt Restructuring Write Down Due To Interest Concessions FinancingReceivablesImpairedTroubledDebtRestructuringWriteDownDueToInterestConcessions	3000	USD
CY2016	wal	Financing Receivables Impaired Troubled Debt Restructuring Write Down Due To Interest Concessions FinancingReceivablesImpairedTroubledDebtRestructuringWriteDownDueToInterestConcessions	0	USD
CY2014	wal	Financing Receivables Impaired Troubled Debt Restructuring Write Down Due To Principal Forgiveness FinancingReceivablesImpairedTroubledDebtRestructuringWriteDownDueToPrincipalForgiveness	825000	USD
CY2015	wal	Financing Receivables Impaired Troubled Debt Restructuring Write Down Due To Principal Forgiveness FinancingReceivablesImpairedTroubledDebtRestructuringWriteDownDueToPrincipalForgiveness	0	USD
CY2016	wal	Financing Receivables Impaired Troubled Debt Restructuring Write Down Due To Principal Forgiveness FinancingReceivablesImpairedTroubledDebtRestructuringWriteDownDueToPrincipalForgiveness	0	USD
CY2013Q4	wal	Foreclosed Assets Gross ForeclosedAssetsGross	88421000	USD
CY2014Q4	wal	Foreclosed Assets Gross ForeclosedAssetsGross	71421000	USD
CY2015Q4	wal	Foreclosed Assets Gross ForeclosedAssetsGross	52984000	USD
CY2016Q4	wal	Foreclosed Assets Gross ForeclosedAssetsGross	54138000	USD
CY2015Q4	wal	Furniture Fixtures And Equipment Gross FurnitureFixturesAndEquipmentGross	40025000	USD
CY2016Q4	wal	Furniture Fixtures And Equipment Gross FurnitureFixturesAndEquipmentGross	45676000	USD
CY2014	wal	Gain Loss On Foreclosed Assets GainLossOnForeclosedAssets	2866000	USD
CY2015	wal	Gain Loss On Foreclosed Assets GainLossOnForeclosedAssets	2628000	USD
CY2016	wal	Gain Loss On Foreclosed Assets GainLossOnForeclosedAssets	-372000	USD
CY2014	wal	Gains Losses On Transfers To Other Real Estate And Foreclosed Assets GainsLossesOnTransfersToOtherRealEstateAndForeclosedAssets	100000	USD
CY2015	wal	Gains Losses On Transfers To Other Real Estate And Foreclosed Assets GainsLossesOnTransfersToOtherRealEstateAndForeclosedAssets	851000	USD
CY2016	wal	Gains Losses On Transfers To Other Real Estate And Foreclosed Assets GainsLossesOnTransfersToOtherRealEstateAndForeclosedAssets	381000	USD
CY2015Q4	wal	Impaired Financing Receivable Unpaid Principal Balance Individually Evaluated For Impairment ImpairedFinancingReceivableUnpaidPrincipalBalanceIndividuallyEvaluatedForImpairment	358613000	USD
CY2016Q4	wal	Impaired Financing Receivable Unpaid Principal Balance Individually Evaluated For Impairment ImpairedFinancingReceivableUnpaidPrincipalBalanceIndividuallyEvaluatedForImpairment	175883000	USD
CY2015Q4	wal	Impaired Financing Receivable With No Related Allowance ImpairedFinancingReceivableWithNoRelatedAllowance	0	USD
CY2016Q4	wal	Impaired Financing Receivable With No Related Allowance ImpairedFinancingReceivableWithNoRelatedAllowance	0	USD
CY2015Q4	wal	Impaired Financing Receivables With Norelated Allowance Balanceswith Chargeoffs ImpairedFinancingReceivablesWithNorelatedAllowanceBalanceswithChargeoffs	37800000	USD
CY2016Q4	wal	Impaired Financing Receivables With Norelated Allowance Balanceswith Chargeoffs ImpairedFinancingReceivablesWithNorelatedAllowanceBalanceswithChargeoffs	27600000	USD
CY2014	wal	Income Tax Reconciliation Low Income Housing And Other Tax Credits IncomeTaxReconciliationLowIncomeHousingAndOtherTaxCredits	-3872000	USD
CY2015	wal	Income Tax Reconciliation Low Income Housing And Other Tax Credits IncomeTaxReconciliationLowIncomeHousingAndOtherTaxCredits	-5223000	USD
CY2016	wal	Income Tax Reconciliation Low Income Housing And Other Tax Credits IncomeTaxReconciliationLowIncomeHousingAndOtherTaxCredits	-6153000	USD
CY2014	wal	Income Tax Reconciliation Tax On Earnings Other Than Statutory Tax Rate IncomeTaxReconciliationTaxOnEarningsOtherThanStatutoryTaxRate	-3079000	USD
CY2015	wal	Income Tax Reconciliation Tax On Earnings Other Than Statutory Tax Rate IncomeTaxReconciliationTaxOnEarningsOtherThanStatutoryTaxRate	-2874000	USD
CY2016	wal	Income Tax Reconciliation Tax On Earnings Other Than Statutory Tax Rate IncomeTaxReconciliationTaxOnEarningsOtherThanStatutoryTaxRate	-3183000	USD
CY2015Q4	wal	Indefinite Lived Trade Name Gross IndefiniteLivedTradeNameGross	350000	USD
CY2016Q4	wal	Indefinite Lived Trade Name Gross IndefiniteLivedTradeNameGross	350000	USD
CY2015Q4	wal	Interest Bearing Deposit Demand InterestBearingDepositDemand	1028073000	USD
CY2016Q4	wal	Interest Bearing Deposit Demand InterestBearingDepositDemand	1346718000	USD
CY2015Q4	wal	Interest Rateand Credit Markson Acquired Loans InterestRateandCreditMarksonAcquiredLoans	40500000	USD
CY2016Q4	wal	Interest Rateand Credit Markson Acquired Loans InterestRateandCreditMarksonAcquiredLoans	69500000	USD
CY2015Q4	wal	Investmentin Low Income Housing Tax Credit InvestmentinLowIncomeHousingTaxCredit	152700000	USD
CY2016Q4	wal	Investmentin Low Income Housing Tax Credit InvestmentinLowIncomeHousingTaxCredit	187400000	USD
CY2014	wal	Legal Professional And Director Fees LegalProfessionalAndDirectorFees	14278000	USD
CY2015	wal	Legal Professional And Director Fees LegalProfessionalAndDirectorFees	18548000	USD
CY2016	wal	Legal Professional And Director Fees LegalProfessionalAndDirectorFees	24610000	USD
CY2014	wal	Lendingrelatedfees Lendingrelatedfees	71000	USD
CY2015	wal	Lendingrelatedfees Lendingrelatedfees	369000	USD
CY2016	wal	Lendingrelatedfees Lendingrelatedfees	3770000	USD
CY2014	wal	Loan And Repossessed Asset Expense LoanAndRepossessedAssetExpense	4423000	USD
CY2015	wal	Loan And Repossessed Asset Expense LoanAndRepossessedAssetExpense	4377000	USD
CY2016	wal	Loan And Repossessed Asset Expense LoanAndRepossessedAssetExpense	2999000	USD
CY2015Q4	wal	Loanand Leases Receivable Commitment Outstanding Related Parties LoanandLeasesReceivableCommitmentOutstandingRelatedParties	164500000	USD
CY2016Q4	wal	Loanand Leases Receivable Commitment Outstanding Related Parties LoanandLeasesReceivableCommitmentOutstandingRelatedParties	46600000	USD
CY2015	wal	Loans And Loans Receivable Purchases LoansAndLoansReceivablePurchases	137200000	USD
CY2016	wal	Loans And Loans Receivable Purchases LoansAndLoansReceivablePurchases	340600000	USD
CY2015	wal	Loansand Leases Receivable Advances Related Parties LoansandLeasesReceivableAdvancesRelatedParties	18614000	USD
CY2016	wal	Loansand Leases Receivable Advances Related Parties LoansandLeasesReceivableAdvancesRelatedParties	1980000	USD
CY2015Q4	wal	Loansand Leases Receivable Including Heldfor Sale Net LoansandLeasesReceivableIncludingHeldforSaleNet	11017600000	USD
CY2016Q4	wal	Loansand Leases Receivable Including Heldfor Sale Net LoansandLeasesReceivableIncludingHeldforSaleNet	13083800000	USD
CY2015Q4	wal	Loansand Leases Receivable Including Heldfor Sale Netof Deferred Income LoansandLeasesReceivableIncludingHeldforSaleNetofDeferredIncome	11136700000	USD
CY2016Q4	wal	Loansand Leases Receivable Including Heldfor Sale Netof Deferred Income LoansandLeasesReceivableIncludingHeldforSaleNetofDeferredIncome	13208500000	USD
CY2014	wal	Mark To Market Losses Gains Net MarkToMarketLossesGainsNet	1212000	USD
CY2015	wal	Mark To Market Losses Gains Net MarkToMarketLossesGainsNet	47000	USD
CY2016	wal	Mark To Market Losses Gains Net MarkToMarketLossesGainsNet	45000	USD
CY2016	wal	Maximum Loan To Value Ratio MaximumLoanToValueRatio	0.75
CY2014	wal	Merger Restructure Expense MergerRestructureExpense	198000	USD
CY2015	wal	Merger Restructure Expense MergerRestructureExpense	8836000	USD
CY2016	wal	Merger Restructure Expense MergerRestructureExpense	12412000	USD
CY2014	wal	Net Loss Gain On Sales Valuations Of Repossessed Assets And Bank Premises Net NetLossGainOnSalesValuationsOfRepossessedAssetsAndBankPremisesNet	-5350000	USD
CY2015	wal	Net Loss Gain On Sales Valuations Of Repossessed Assets And Bank Premises Net NetLossGainOnSalesValuationsOfRepossessedAssetsAndBankPremisesNet	-2070000	USD
CY2016	wal	Net Loss Gain On Sales Valuations Of Repossessed Assets And Bank Premises Net NetLossGainOnSalesValuationsOfRepossessedAssetsAndBankPremisesNet	-125000	USD
CY2015Q4	wal	Non Performing Assets NonPerformingAssets	166058000	USD
CY2016Q4	wal	Non Performing Assets NonPerformingAssets	142791000	USD
CY2015Q4	wal	Non Performing Loans NonPerformingLoans	122116000	USD
CY2016Q4	wal	Non Performing Loans NonPerformingLoans	94976000	USD
CY2015Q4	wal	Number Of Securities In Unrealized Position NumberOfSecuritiesInUnrealizedPosition	146	positions
CY2016Q4	wal	Number Of Securities In Unrealized Position NumberOfSecuritiesInUnrealizedPosition	244	positions
CY2016	wal	Number Of Unconsolidated Subsidiaries NumberOfUnconsolidatedSubsidiaries	8	Subsidiary
CY2016	wal	Number Of Wholly Owned Subsidiaries NumberOfWhollyOwnedSubsidiaries	10	Subsidiary
CY2016	wal	Number Of Wholly Owned Subsidiaries Non Bank Subsidiaries NumberOfWhollyOwnedSubsidiariesNonBankSubsidiaries	1	Subsidiary
CY2015Q4	wal	Other Assets Segment OtherAssetsSegment	641400000	USD
CY2016Q4	wal	Other Assets Segment OtherAssetsSegment	714000000	USD
CY2014	wal	Other Comprehensive Income Loss Unrealized Gain Losson Debt Carriedat Fair Value Tax OtherComprehensiveIncomeLossUnrealizedGainLossonDebtCarriedatFairValueTax	0	USD
CY2015	wal	Other Comprehensive Income Loss Unrealized Gain Losson Debt Carriedat Fair Value Tax OtherComprehensiveIncomeLossUnrealizedGainLossonDebtCarriedatFairValueTax	2679000	USD
CY2016	wal	Other Comprehensive Income Loss Unrealized Gain Losson Debt Carriedat Fair Value Tax OtherComprehensiveIncomeLossUnrealizedGainLossonDebtCarriedatFairValueTax	1405000	USD
CY2014	wal	Other Comprehensive Income Loss Unrealized Gain Losson Junior Subordinated Debt Carriedat Fair Value OtherComprehensiveIncomeLossUnrealizedGainLossonJuniorSubordinatedDebtCarriedatFairValue	0	USD
CY2015	wal	Other Comprehensive Income Loss Unrealized Gain Losson Junior Subordinated Debt Carriedat Fair Value OtherComprehensiveIncomeLossUnrealizedGainLossonJuniorSubordinatedDebtCarriedatFairValue	-4276000	USD
CY2016	wal	Other Comprehensive Income Loss Unrealized Gain Losson Junior Subordinated Debt Carriedat Fair Value OtherComprehensiveIncomeLossUnrealizedGainLossonJuniorSubordinatedDebtCarriedatFairValue	-2077000	USD
CY2015Q4	wal	Other Liabilities Segment OtherLiabilitiesSegment	292700000	USD
CY2016Q4	wal	Other Liabilities Segment OtherLiabilitiesSegment	311600000	USD
CY2014Q4	wal	Over Collateralization On Derivatives To Banks After Application Of Master Netting Agreements And Collateral OverCollateralizationOnDerivativesToBanksAfterApplicationOfMasterNettingAgreementsAndCollateral	14200000	USD
CY2015Q4	wal	Over Collateralization On Derivatives To Banks After Application Of Master Netting Agreements And Collateral OverCollateralizationOnDerivativesToBanksAfterApplicationOfMasterNettingAgreementsAndCollateral	15500000	USD
CY2016Q4	wal	Over Collateralization On Derivatives To Banks After Application Of Master Netting Agreements And Collateral OverCollateralizationOnDerivativesToBanksAfterApplicationOfMasterNettingAgreementsAndCollateral	24300000	USD
CY2015Q4	wal	Percentage Of Commercial Real Estate Loans Occupied By Owners PercentageOfCommercialRealEstateLoansOccupiedByOwners	0.48
CY2016Q4	wal	Percentage Of Commercial Real Estate Loans Occupied By Owners PercentageOfCommercialRealEstateLoansOccupiedByOwners	0.36
CY2014	wal	Proceeds From Sale Of Other Real Estate Owned Gross ProceedsFromSaleOfOtherRealEstateOwnedGross	33643000	USD
CY2015	wal	Proceeds From Sale Of Other Real Estate Owned Gross ProceedsFromSaleOfOtherRealEstateOwnedGross	51038000	USD
CY2016	wal	Proceeds From Sale Of Other Real Estate Owned Gross ProceedsFromSaleOfOtherRealEstateOwnedGross	11584000	USD
CY2014	wal	Proceeds From Sale Of Other Real Estate Owned Net ProceedsFromSaleOfOtherRealEstateOwnedNet	25918000	USD
CY2015	wal	Proceeds From Sale Of Other Real Estate Owned Net ProceedsFromSaleOfOtherRealEstateOwnedNet	45627000	USD
CY2016	wal	Proceeds From Sale Of Other Real Estate Owned Net ProceedsFromSaleOfOtherRealEstateOwnedNet	9133000	USD
CY2014	wal	Proceeds From Sale Of Other Real Estate Owned Valuation Allowance ProceedsFromSaleOfOtherRealEstateOwnedValuationAllowance	7725000	USD
CY2015	wal	Proceeds From Sale Of Other Real Estate Owned Valuation Allowance ProceedsFromSaleOfOtherRealEstateOwnedValuationAllowance	5411000	USD
CY2016	wal	Proceeds From Sale Of Other Real Estate Owned Valuation Allowance ProceedsFromSaleOfOtherRealEstateOwnedValuationAllowance	2451000	USD
CY2016	wal	Proceedsfrom Issuanceof Common Stock Gross ProceedsfromIssuanceofCommonStockGross	56800000	USD
CY2014	wal	Proceedsfrom Sale Paymentsto Purchase Investment In Money Market ProceedsfromSalePaymentstoPurchaseInvestmentInMoneyMarket	2181000	USD
CY2015	wal	Proceedsfrom Sale Paymentsto Purchase Investment In Money Market ProceedsfromSalePaymentstoPurchaseInvestmentInMoneyMarket	330000	USD
CY2016	wal	Proceedsfrom Sale Paymentsto Purchase Investment In Money Market ProceedsfromSalePaymentstoPurchaseInvestmentInMoneyMarket	121000	USD
CY2014	wal	Purchase Of Investment Tax Credits PurchaseOfInvestmentTaxCredits	32484000	USD
CY2015	wal	Purchase Of Investment Tax Credits PurchaseOfInvestmentTaxCredits	29437000	USD
CY2016	wal	Purchase Of Investment Tax Credits PurchaseOfInvestmentTaxCredits	28847000	USD
CY2015Q4	wal	Qualifying Debt QualifyingDebt	210328000	USD
CY2016Q4	wal	Qualifying Debt QualifyingDebt	367937000	USD
CY2014	wal	Redemption Of Preferred Stock RedemptionOfPreferredStock	70500000	USD
CY2015	wal	Redemption Of Preferred Stock RedemptionOfPreferredStock	70500000	USD
CY2016	wal	Redemption Of Preferred Stock RedemptionOfPreferredStock	0	USD
CY2014	wal	Restrictedstocksurrendered Restrictedstocksurrendered	4112000	USD
CY2015	wal	Restrictedstocksurrendered Restrictedstocksurrendered	7603000	USD
CY2016	wal	Restrictedstocksurrendered Restrictedstocksurrendered	9483000	USD
CY2014	wal	Small Business Administrationand Warrant Income SmallBusinessAdministrationandWarrantIncome	0	USD
CY2015	wal	Small Business Administrationand Warrant Income SmallBusinessAdministrationandWarrantIncome	1579000	USD
CY2016	wal	Small Business Administrationand Warrant Income SmallBusinessAdministrationandWarrantIncome	4181000	USD
CY2015Q4	wal	Time Deposits250000ormore TimeDeposits250000ormore	626718000	USD
CY2016Q4	wal	Time Deposits250000ormore TimeDeposits250000ormore	609678000	USD
CY2015Q4	wal	Time Deposits Lessthan250000 TimeDepositsLessthan250000	984936000	USD
CY2016Q4	wal	Time Deposits Lessthan250000 TimeDepositsLessthan250000	839664000	USD
CY2015Q4	wal	Trade Name Impaired Accumulated Impairment Loss TradeNameImpairedAccumulatedImpairmentLoss	0	USD
CY2016Q4	wal	Trade Name Impaired Accumulated Impairment Loss TradeNameImpairedAccumulatedImpairmentLoss	0	USD
CY2015Q4	wal	Troubled Debt Restructured Loans TroubledDebtRestructuredLoans	70707000	USD
CY2016Q4	wal	Troubled Debt Restructured Loans TroubledDebtRestructuredLoans	53637000	USD
CY2014	wal	Unfunded Commitments To Purchase Investment Tax Credits UnfundedCommitmentsToPurchaseInvestmentTaxCredits	9798000	USD
CY2015	wal	Unfunded Commitments To Purchase Investment Tax Credits UnfundedCommitmentsToPurchaseInvestmentTaxCredits	39617000	USD
CY2016	wal	Unfunded Commitments To Purchase Investment Tax Credits UnfundedCommitmentsToPurchaseInvestmentTaxCredits	56479000	USD
CY2015Q4	wal	Unfunded Low Income Housing Tax Credit Obligations UnfundedLowIncomeHousingTaxCreditObligations	61200000	USD
CY2016Q4	wal	Unfunded Low Income Housing Tax Credit Obligations UnfundedLowIncomeHousingTaxCreditObligations	84400000	USD
CY2014	wal	Valuation Adjustments Of Other Repossessed Assets Net ValuationAdjustmentsOfOtherRepossessedAssetsNet	-294000	USD
CY2015	wal	Valuation Adjustments Of Other Repossessed Assets Net ValuationAdjustmentsOfOtherRepossessedAssetsNet	-182000	USD
CY2016	wal	Valuation Adjustments Of Other Repossessed Assets Net ValuationAdjustmentsOfOtherRepossessedAssetsNet	268000	USD
CY2014	wal	Valuation Adjustments Of Other Repossessed Assets Valuation Allowance ValuationAdjustmentsOfOtherRepossessedAssetsValuationAllowance	294000	USD
CY2015	wal	Valuation Adjustments Of Other Repossessed Assets Valuation Allowance ValuationAdjustmentsOfOtherRepossessedAssetsValuationAllowance	182000	USD
CY2016	wal	Valuation Adjustments Of Other Repossessed Assets Valuation Allowance ValuationAdjustmentsOfOtherRepossessedAssetsValuationAllowance	-268000	USD
CY2016	wal	Weighted Average Selling Price Per Share WeightedAverageSellingPricePerShare	36.63
CY2016	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 in the Consolidated Financial Statements as of and for the years ended </font><font style="font-family:inherit;font-size:10pt;">December 31, 2016</font><font style="font-family:inherit;font-size:10pt;">, </font><font style="font-family:inherit;font-size:10pt;">2015</font><font style="font-family:inherit;font-size:10pt;">, and </font><font style="font-family:inherit;font-size:10pt;">2014</font><font style="font-family:inherit;font-size:10pt;"> may have been reclassified to conform to the current presentation. The reclassifications have no effect on net income or stockholders’ equity as previously reported.</font></div></div>
CY2016	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
0001212545-17-000112-index-headers.html	Edgar Link	pending
0001212545-17-000112-index.html	Edgar Link	pending
0001212545-17-000112.txt	Edgar Link	pending
0001212545-17-000112-xbrl.zip	Edgar Link	pending
a10kchart.jpg	Edgar Link	pending
bonusplan.jpg	Edgar Link	pending
ex108bonusplan2017.htm	Edgar Link	pending
ex211listofsubsidiaries123.htm	Edgar Link	pending
ex231consent2016.htm	Edgar Link	pending
FilingSummary.xml	Edgar Link	unprocessable
Financial_Report.xlsx	Edgar Link	pending
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wal-20161231.xml	Edgar Link	completed
wal-20161231.xsd	Edgar Link	pending
wal-20161231_cal.xml	Edgar Link	unprocessable
wal-20161231_def.xml	Edgar Link	unprocessable
wal-20161231_lab.xml	Edgar Link	unprocessable
wal-20161231_pre.xml	Edgar Link	unprocessable
wal1231201610-k.htm	Edgar Link	pending
walex31110k12312016.htm	Edgar Link	pending
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walex3210k12312016.htm	Edgar Link	pending

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$WAL
WESTERN ALLIANCE BANCORPORATION Stock $wal

2016 Form 10-K Financial Statement

#000121254517000112 Filed on February 28, 2017

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$WAL WESTERN ALLIANCE BANCORPORATION Stock $wal

2016 Form 10-K Financial Statement

#000121254517000112 Filed on February 28, 2017

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$WAL
WESTERN ALLIANCE BANCORPORATION Stock $wal