$WAL
WESTERN ALLIANCE BANCORPORATION Stock $wal

$wal Overview Financials Valuation SEC Filings Company Website

2015 Q4 Form 10-K Financial Statement

#000121254516000325 Filed on February 16, 2016

Income Statement

Concept	2015 Q4	2014 Q4	2014 Q3
Revenue	$151.3M	$110.2M	$105.6M
YoY Change	37.39%	12.88%	13.89%
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	$2.500M	$1.900M	$1.100M
YoY Change	31.58%	-17.39%	-26.67%
% of Gross Profit
Operating Expenses
YoY Change
Operating Profit
YoY Change
Interest Expense	$7.988M	$8.006M	$7.481M
YoY Change	-0.22%	5.33%	-7.88%
% of Operating Profit
Other Income/Expense, Net
YoY Change
Pretax Income	$77.87M	$54.52M	$53.87M
YoY Change	42.84%	51.0%	38.08%
Income Tax	$19.35M	$14.11M	$12.95M
% Of Pretax Income	24.85%	25.88%	24.04%
Net Earnings	$58.53M	$40.41M	$40.92M
YoY Change	44.83%	28.63%	43.1%
Net Earnings / Revenue	38.67%	36.69%	38.77%
Basic Earnings Per Share	$0.58	$0.46	$0.47
Diluted Earnings Per Share	$0.57	$0.46	$0.46
COMMON SHARES
Basic Shares Outstanding	102.3M shares	88.08M shares	86.72M shares
Diluted Shares Outstanding			87.57M shares

Balance Sheet

Concept	2015 Q4	2014 Q4	2014 Q3
SHORT-TERM ASSETS
Cash & Short-Term Investments
YoY Change
Cash & Equivalents	$224.6M	$164.4M	$268.3M
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	$118.5M	$113.8M	$112.1M
YoY Change	4.14%	7.82%	5.79%
Goodwill	$289.6M	$23.22M	$23.22M
YoY Change	1147.15%	0.0%	0.0%
Intangibles	$15.72M	$2.689M	$2.970M
YoY Change	484.46%	-35.2%	-37.43%
Long-Term Investments
YoY Change
Other Assets	$86.00M	$63.00M	$68.00M
YoY Change	36.51%	-22.22%	-15.0%
Total Long-Term Assets
YoY Change
TOTAL ASSETS
Total Short-Term Assets
Total Long-Term Assets
Total Assets	$14.28B	$10.60B	$10.29B
YoY Change	34.66%	13.89%	15.33%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable
YoY Change
Accrued Expenses
YoY Change
Deferred Revenue
YoY Change
Short-Term Debt	$150.0M	$180.2M	$120.7M
YoY Change	-16.74%	523.29%	163.55%
Long-Term Debt Due
YoY Change
Total Short-Term Liabilities	$38.00M	$138.0M	$111.0M
YoY Change	-72.46%	86.49%	-39.01%
LONG-TERM LIABILITIES
Long-Term Debt	$0.00	$210.1M	$210.1M
YoY Change	-100.0%	-32.7%	-51.59%
Other Long-Term Liabilities	$254.0M	$183.0M	$163.0M
YoY Change	38.8%	15.09%	-20.1%
Total Long-Term Liabilities	$0.00	$210.1M	$210.1M
YoY Change	-100.0%	-32.7%	-67.07%
TOTAL LIABILITIES
Total Short-Term Liabilities	$38.00M	$138.0M	$111.0M
Total Long-Term Liabilities	$0.00	$210.1M	$210.1M
Total Liabilities	$12.68B	$9.600B	$9.286B
YoY Change	32.13%	13.58%	14.71%
SHAREHOLDERS EQUITY
Retained Earnings	$262.6M	$85.45M	$45.37M
YoY Change	207.35%	-239.83%	-149.13%
Common Stock	$10.00K	$9.000K	$9.000K
YoY Change	11.11%	0.0%	0.0%
Preferred Stock
YoY Change
Treasury Stock (at cost)	$16.88M
YoY Change
Treasury Stock Shares	995.2K shares
Shareholders Equity	$1.592B	$1.001B	$1.003B
YoY Change
Total Liabilities & Shareholders Equity	$14.28B	$10.60B	$10.29B
YoY Change	34.66%	13.89%	15.33%

Cashflow Statement

Concept	2015 Q4	2014 Q4	2014 Q3
OPERATING ACTIVITIES
Net Income	$58.53M	$40.41M	$40.92M
YoY Change	44.83%	28.63%	43.1%
Depreciation, Depletion And Amortization	$2.500M	$1.900M	$1.100M
YoY Change	31.58%	-17.39%	-26.67%
Cash From Operating Activities	$75.80M	$60.30M	$46.60M
YoY Change	25.7%	46.36%	24.93%
INVESTING ACTIVITIES
Capital Expenditures	$1.000M	-$3.400M	-$5.000M
YoY Change	-129.41%	-79.27%	257.14%
Acquisitions
YoY Change
Other Investing Activities	-$390.3M	-$392.3M	-$383.5M
YoY Change	-0.51%	-37.67%	136.73%
Cash From Investing Activities	-$389.2M	-$395.7M	-$388.5M
YoY Change	-1.64%	-38.73%	138.05%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net
YoY Change
Debt Paid & Issued, Net
YoY Change
Cash From Financing Activities	212.7M	231.6M	230.9M
YoY Change	-8.16%	-42.26%	-8.37%
NET CHANGE
Cash From Operating Activities	75.80M	60.30M	46.60M
Cash From Investing Activities	-389.2M	-395.7M	-388.5M
Cash From Financing Activities	212.7M	231.6M	230.9M
Net Change In Cash	-100.7M	-103.8M	-111.0M
YoY Change	-2.99%	-48.99%	-188.03%
FREE CASH FLOW
Cash From Operating Activities	$75.80M	$60.30M	$46.60M
Capital Expenditures	$1.000M	-$3.400M	-$5.000M
Free Cash Flow	$74.80M	$63.70M	$51.60M
YoY Change	17.43%	10.59%	33.33%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
CY2015Q4	invest	Derivative Notional Amount DerivativeNotionalAmount	800478000	USD
CY2012Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	8226000	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
CY2015	dei	Entity Registrant Name EntityRegistrantName	WESTERN ALLIANCE BANCORPORATION
CY2015	dei	Entity Voluntary Filers EntityVoluntaryFilers	No
CY2015Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	22260000	USD
CY2015	us-gaap	Acquired Finite Lived Intangible Assets Weighted Average Useful Life AcquiredFiniteLivedIntangibleAssetsWeightedAverageUsefulLife	P8Y8M12D
CY2014Q4	us-gaap	Additional Paid In Capital AdditionalPaidInCapital	828327000	USD
CY2015Q4	us-gaap	Additional Paid In Capital AdditionalPaidInCapital	1306594000	USD
CY2013	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	2400000	USD
CY2013	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	2388000	USD
CY2015	dei	Entity Well Known Seasoned Issuer EntityWellKnownSeasonedIssuer	Yes
CY2015	dei	Trading Symbol TradingSymbol	WAL
CY2013Q4	invest	Derivative Notional Amount DerivativeNotionalAmount	294997000	USD
CY2014Q4	invest	Derivative Notional Amount DerivativeNotionalAmount	647703000	USD
CY2014	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	1500000	USD
CY2014	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	1461000	USD
CY2015	dei	Amendment Flag AmendmentFlag	false
CY2015	dei	Current Fiscal Year End Date CurrentFiscalYearEndDate	--12-31
CY2015	dei	Document Fiscal Period Focus DocumentFiscalPeriodFocus	FY
CY2015	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2015
CY2015	dei	Document Period End Date DocumentPeriodEndDate	2015-12-31
CY2015	dei	Document Type DocumentType	10-K
CY2015	dei	Entity Central Index Key EntityCentralIndexKey	0001212545
CY2016Q1	dei	Entity Common Stock Shares Outstanding EntityCommonStockSharesOutstanding	103418400	shares
CY2015	dei	Entity Current Reporting Status EntityCurrentReportingStatus	Yes
CY2015	dei	Entity Filer Category EntityFilerCategory	Large Accelerated Filer
CY2015Q2	dei	Entity Public Float EntityPublicFloat	2357300000	USD
CY2013	us-gaap	Accretion Amortization Of Discounts And Premiums Investments AccretionAmortizationOfDiscountsAndPremiumsInvestments	-9727000	USD
CY2014	us-gaap	Accretion Amortization Of Discounts And Premiums Investments AccretionAmortizationOfDiscountsAndPremiumsInvestments	-8035000	USD
CY2015	us-gaap	Accretion Amortization Of Discounts And Premiums Investments AccretionAmortizationOfDiscountsAndPremiumsInvestments	-9775000	USD
CY2015Q1	us-gaap	Accumulated Comprehensive Income After Adoption Of New Accounting Principle AccumulatedComprehensiveIncomeAfterAdoptionOfNewAccountingPrinciple	32948000	USD
CY2014Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	72975000	USD
CY2015Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	59849000	USD
CY2012Q4	us-gaap	Accumulated Other Comprehensive Income Loss Cumulative Changes In Net Gain Loss From Cash Flow Hedges Effect Net Of Tax AccumulatedOtherComprehensiveIncomeLossCumulativeChangesInNetGainLossFromCashFlowHedgesEffectNetOfTax	17000	USD
CY2013Q4	us-gaap	Accumulated Other Comprehensive Income Loss Cumulative Changes In Net Gain Loss From Cash Flow Hedges Effect Net Of Tax AccumulatedOtherComprehensiveIncomeLossCumulativeChangesInNetGainLossFromCashFlowHedgesEffectNetOfTax	-17000	USD
CY2015	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	1970000	USD
CY2015	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	2000000	USD
CY2014	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	1500	shares
CY2015	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	0	shares
CY2014Q4	us-gaap	Assets Assets	10600498000	USD
CY2013	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	163300	shares
CY2015Q4	us-gaap	Assets Assets	14275089000	USD
CY2014Q4	us-gaap	Available For Sale Debt Securities Amortized Cost Basis AvailableForSaleDebtSecuritiesAmortizedCostBasis	1493648000	USD
CY2015Q4	us-gaap	Available For Sale Debt Securities Amortized Cost Basis AvailableForSaleDebtSecuritiesAmortizedCostBasis	1966034000	USD
CY2014Q4	us-gaap	Available For Sale Securities AvailableForSaleSecurities	1520237000	USD
CY2015Q4	us-gaap	Available For Sale Securities AvailableForSaleSecurities	1982523000	USD
CY2014Q4	us-gaap	Available For Sale Securities Accumulated Gross Unrealized Gain Before Tax AvailableForSaleSecuritiesAccumulatedGrossUnrealizedGainBeforeTax	40480000	USD
CY2015Q4	us-gaap	Available For Sale Securities Accumulated Gross Unrealized Gain Before Tax AvailableForSaleSecuritiesAccumulatedGrossUnrealizedGainBeforeTax	34907000	USD
CY2014Q4	us-gaap	Available For Sale Securities Accumulated Gross Unrealized Loss Before Tax AvailableForSaleSecuritiesAccumulatedGrossUnrealizedLossBeforeTax	13891000	USD
CY2015Q4	us-gaap	Available For Sale Securities Accumulated Gross Unrealized Loss Before Tax AvailableForSaleSecuritiesAccumulatedGrossUnrealizedLossBeforeTax	18418000	USD
CY2014Q4	us-gaap	Available For Sale Securities Amortized Cost AvailableForSaleSecuritiesAmortizedCost	1493648000	USD
CY2015Q4	us-gaap	Available For Sale Securities Amortized Cost AvailableForSaleSecuritiesAmortizedCost	1899580000	USD
CY2013	us-gaap	Available For Sale Securities Change In Net Unrealized Holding Gain Loss Net Of Tax AvailableForSaleSecuritiesChangeInNetUnrealizedHoldingGainLossNetOfTax	0	USD
CY2014	us-gaap	Available For Sale Securities Change In Net Unrealized Holding Gain Loss Net Of Tax AvailableForSaleSecuritiesChangeInNetUnrealizedHoldingGainLossNetOfTax	29209000	USD
CY2015	us-gaap	Available For Sale Securities Change In Net Unrealized Holding Gain Loss Net Of Tax AvailableForSaleSecuritiesChangeInNetUnrealizedHoldingGainLossNetOfTax	-6502000	USD
CY2014Q4	us-gaap	Available For Sale Securities Continuous Unrealized Loss Position12 Months Or Longer Accumulated Loss AvailableForSaleSecuritiesContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss	12889000	USD
CY2015Q4	us-gaap	Available For Sale Securities Continuous Unrealized Loss Position12 Months Or Longer Accumulated Loss AvailableForSaleSecuritiesContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss	10548000	USD
CY2014Q4	us-gaap	Available For Sale Securities Continuous Unrealized Loss Position Accumulated Loss AvailableForSaleSecuritiesContinuousUnrealizedLossPositionAccumulatedLoss	13891000	USD
CY2015Q4	us-gaap	Available For Sale Securities Continuous Unrealized Loss Position Accumulated Loss AvailableForSaleSecuritiesContinuousUnrealizedLossPositionAccumulatedLoss	18418000	USD
CY2014Q4	us-gaap	Available For Sale Securities Continuous Unrealized Loss Position Fair Value AvailableForSaleSecuritiesContinuousUnrealizedLossPositionFairValue	352279000	USD
CY2015Q4	us-gaap	Available For Sale Securities Continuous Unrealized Loss Position Fair Value AvailableForSaleSecuritiesContinuousUnrealizedLossPositionFairValue	925349000	USD
CY2014Q4	us-gaap	Available For Sale Securities Continuous Unrealized Loss Position Less Than12 Months Accumulated Loss AvailableForSaleSecuritiesContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss	1002000	USD
CY2015Q4	us-gaap	Available For Sale Securities Continuous Unrealized Loss Position Less Than12 Months Accumulated Loss AvailableForSaleSecuritiesContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss	7870000	USD
CY2014Q4	us-gaap	Available For Sale Securities Continuous Unrealized Loss Position Less Than Twelve Months Fair Value AvailableForSaleSecuritiesContinuousUnrealizedLossPositionLessThanTwelveMonthsFairValue	122799000	USD
CY2015Q4	us-gaap	Available For Sale Securities Continuous Unrealized Loss Position Less Than Twelve Months Fair Value AvailableForSaleSecuritiesContinuousUnrealizedLossPositionLessThanTwelveMonthsFairValue	817564000	USD
CY2014Q4	us-gaap	Available For Sale Securities Continuous Unrealized Loss Position Twelve Months Or Longer Fair Value AvailableForSaleSecuritiesContinuousUnrealizedLossPositionTwelveMonthsOrLongerFairValue	229480000	USD
CY2015Q4	us-gaap	Available For Sale Securities Continuous Unrealized Loss Position Twelve Months Or Longer Fair Value AvailableForSaleSecuritiesContinuousUnrealizedLossPositionTwelveMonthsOrLongerFairValue	107785000	USD
CY2015Q4	us-gaap	Available For Sale Securities Debt Maturities After Five Through Ten Years Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsAmortizedCost	68935000	USD
CY2015Q4	us-gaap	Available For Sale Securities Debt Maturities After Five Through Ten Years Fair Value AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsFairValue	72283000	USD
CY2015Q4	us-gaap	Available For Sale Securities Debt Maturities After One Through Five Years Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsAmortizedCost	77273000	USD
CY2015Q4	us-gaap	Available For Sale Securities Debt Maturities After One Through Five Years Fair Value AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsFairValue	81090000	USD
CY2015Q4	us-gaap	Available For Sale Securities Debt Maturities After Ten Years Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesAfterTenYearsAmortizedCost	301981000	USD
CY2015Q4	us-gaap	Available For Sale Securities Debt Maturities After Ten Years Fair Value AvailableForSaleSecuritiesDebtMaturitiesAfterTenYearsFairValue	314882000	USD
CY2015Q4	us-gaap	Available For Sale Securities Debt Maturities Within One Year Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearAmortizedCost	62852000	USD
CY2015Q4	us-gaap	Available For Sale Securities Debt Maturities Within One Year Fair Value AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearFairValue	63114000	USD
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CY2015Q4	us-gaap	Available For Sale Securities Debt Maturities Without Single Maturity Date Fair Value AvailableForSaleSecuritiesDebtMaturitiesWithoutSingleMaturityDateFairValue	1451154000	USD
CY2014Q4	us-gaap	Bank Owned Life Insurance BankOwnedLifeInsurance	141969000	USD
CY2015Q4	us-gaap	Bank Owned Life Insurance BankOwnedLifeInsurance	162458000	USD
CY2013	us-gaap	Bank Owned Life Insurance Income BankOwnedLifeInsuranceIncome	4809000	USD
CY2014	us-gaap	Bank Owned Life Insurance Income BankOwnedLifeInsuranceIncome	4508000	USD
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CY2015	us-gaap	Certain Loans Acquired In Transfer Not Accounted For As Debt Securities Accretable Yield Reclassifications From Nonaccretable Difference CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritiesAccretableYieldReclassificationsFromNonaccretableDifference	1747000	USD
CY2015	us-gaap	Bank Owned Life Insurance Income BankOwnedLifeInsuranceIncome	3899000	USD
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CY2013Q4	us-gaap	Business Combination Recognized Identifiable Assets Acquired And Liabilities Assumed Liabilities BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLiabilities	421987000	USD
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CY2015Q4	us-gaap	Business Combination Recognized Identifiable Assets Acquired And Liabilities Assumed Liabilities BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLiabilities	1764996000	USD
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CY2013	us-gaap	Cash Acquired From Acquisition CashAcquiredFromAcquisition	21204000	USD
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CY2014Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	164396000	USD
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CY2013	us-gaap	Cash And Cash Equivalents Period Increase Decrease CashAndCashEquivalentsPeriodIncreaseDecrease	100889000	USD
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CY2015Q4	us-gaap	Cash And Due From Banks CashAndDueFromBanks	133709000	USD
CY2014Q4	us-gaap	Cash Cash Equivalents And Federal Funds Sold CashCashEquivalentsAndFederalFundsSold	164396000	USD
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CY2012Q4	us-gaap	Certain Loans Acquired In Transfer Not Accounted For As Debt Securities Accretable Yield CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritiesAccretableYield	7072000	USD
CY2013Q4	us-gaap	Certain Loans Acquired In Transfer Not Accounted For As Debt Securities Accretable Yield CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritiesAccretableYield	28164000	USD
CY2014Q4	us-gaap	Certain Loans Acquired In Transfer Not Accounted For As Debt Securities Accretable Yield CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritiesAccretableYield	19156000	USD
CY2015Q4	us-gaap	Certain Loans Acquired In Transfer Not Accounted For As Debt Securities Accretable Yield CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritiesAccretableYield	15925000	USD
CY2013	us-gaap	Certain Loans Acquired In Transfer Not Accounted For As Debt Securities Accretable Yield Accretion CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritiesAccretableYieldAccretion	7182000	USD
CY2014	us-gaap	Certain Loans Acquired In Transfer Not Accounted For As Debt Securities Accretable Yield Accretion CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritiesAccretableYieldAccretion	7185000	USD
CY2015	us-gaap	Certain Loans Acquired In Transfer Not Accounted For As Debt Securities Accretable Yield Accretion CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritiesAccretableYieldAccretion	3996000	USD
CY2013	us-gaap	Certain Loans Acquired In Transfer Not Accounted For As Debt Securities Accretable Yield Additions CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritiesAccretableYieldAdditions	0	USD
CY2014	us-gaap	Certain Loans Acquired In Transfer Not Accounted For As Debt Securities Accretable Yield Additions CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritiesAccretableYieldAdditions	0	USD
CY2015	us-gaap	Certain Loans Acquired In Transfer Not Accounted For As Debt Securities Accretable Yield Additions CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritiesAccretableYieldAdditions	857000	USD
CY2013	us-gaap	Certain Loans Acquired In Transfer Not Accounted For As Debt Securities Accretable Yield Disposals Of Loans CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritiesAccretableYieldDisposalsOfLoans	3861000	USD
CY2014	us-gaap	Certain Loans Acquired In Transfer Not Accounted For As Debt Securities Accretable Yield Disposals Of Loans CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritiesAccretableYieldDisposalsOfLoans	7875000	USD
CY2015	us-gaap	Certain Loans Acquired In Transfer Not Accounted For As Debt Securities Accretable Yield Disposals Of Loans CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritiesAccretableYieldDisposalsOfLoans	1877000	USD
CY2015Q2	us-gaap	Certain Loans Acquired In Transfer Not Accounted For As Debt Securities Acquired During Period Cash Flows Expected To Be Collected At Acquisition CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritiesAcquiredDuringPeriodCashFlowsExpectedToBeCollectedAtAcquisition	1634602000	USD
CY2015Q2	us-gaap	Certain Loans Acquired In Transfer Not Accounted For As Debt Securities Acquired During Period Contractually Required Payments Receivable At Acquisition CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritiesAcquiredDuringPeriodContractuallyRequiredPaymentsReceivableAtAcquisition	1724971000	USD
CY2014Q4	us-gaap	Commitments And Contingencies CommitmentsAndContingencies		USD
CY2015Q4	us-gaap	Commitments And Contingencies CommitmentsAndContingencies		USD
CY2013	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.00
CY2014	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.00
CY2015	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.00
CY2014Q4	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.0001
CY2015Q4	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.0001
CY2014Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	200000000	shares
CY2015Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	200000000	shares
CY2014Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	88691249	shares
CY2015Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	103087044	shares
CY2014Q4	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	88691249	shares
CY2015Q4	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	103087044	shares
CY2014Q4	us-gaap	Common Stock Value CommonStockValue	9000	USD
CY2015Q4	us-gaap	Common Stock Value CommonStockValue	10000	USD
CY2013	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	85193000	USD
CY2014	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	186136000	USD
CY2015	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	183556000	USD
CY2014Q4	us-gaap	Construction In Progress Gross ConstructionInProgressGross	848000	USD
CY2015Q4	us-gaap	Construction In Progress Gross ConstructionInProgressGross	1999000	USD
CY2013	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	43547000	USD
CY2014	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	55572000	USD
CY2015	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	61040000	USD
CY2015	us-gaap	Debt Issuance Costs DebtIssuanceCosts	1800000	USD
CY2013	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-13717000	USD
CY2014	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-7182000	USD
CY2015	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	3254000	USD
CY2014Q4	us-gaap	Deferred Income Tax Liabilities DeferredIncomeTaxLiabilities	32432000	USD
CY2015Q4	us-gaap	Deferred Income Tax Liabilities DeferredIncomeTaxLiabilities	31406000	USD
CY2013	us-gaap	Deferred Income Taxes And Tax Credits DeferredIncomeTaxesAndTaxCredits	-13717000	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
CY2014Q4	us-gaap	Deferred Tax Assets Gross DeferredTaxAssetsGross	97408000	USD
CY2015Q4	us-gaap	Deferred Tax Assets Gross DeferredTaxAssetsGross	117758000	USD
CY2014Q4	us-gaap	Deferred Tax Assets Liabilities Net DeferredTaxAssetsLiabilitiesNet	62686000	USD
CY2015Q4	us-gaap	Deferred Tax Assets Liabilities Net DeferredTaxAssetsLiabilitiesNet	86352000	USD
CY2014Q4	us-gaap	Deferred Tax Assets Net DeferredTaxAssetsNet	95118000	USD
CY2015Q4	us-gaap	Deferred Tax Assets Net DeferredTaxAssetsNet	117758000	USD
CY2014Q4	us-gaap	Deferred Tax Assets Other DeferredTaxAssetsOther	8188000	USD
CY2015Q4	us-gaap	Deferred Tax Assets Other DeferredTaxAssetsOther	13686000	USD
CY2014Q4	us-gaap	Deferred Tax Assets Tax Credit Carryforwards DeferredTaxAssetsTaxCreditCarryforwards	9617000	USD
CY2015Q4	us-gaap	Deferred Tax Assets Tax Credit Carryforwards DeferredTaxAssetsTaxCreditCarryforwards	9052000	USD
CY2014Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Share Based Compensation Cost DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost	4749000	USD
CY2015Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Share Based Compensation Cost DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost	12069000	USD
CY2014Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Provision For Loan Losses DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsProvisionForLoanLosses	42038000	USD
CY2015Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Provision For Loan Losses DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsProvisionForLoanLosses	47431000	USD
CY2014Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	2290000	USD
CY2015Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	0	USD
CY2014Q4	us-gaap	Deferred Tax Liabilities Deferred Expense Deferred Financing Costs DeferredTaxLiabilitiesDeferredExpenseDeferredFinancingCosts	6041000	USD
CY2015Q4	us-gaap	Deferred Tax Liabilities Deferred Expense Deferred Financing Costs DeferredTaxLiabilitiesDeferredExpenseDeferredFinancingCosts	7400000	USD
CY2014Q4	us-gaap	Deferred Tax Liabilities Goodwill And Intangible Assets Intangible Assets DeferredTaxLiabilitiesGoodwillAndIntangibleAssetsIntangibleAssets	1006000	USD
CY2015Q4	us-gaap	Deferred Tax Liabilities Goodwill And Intangible Assets Intangible Assets DeferredTaxLiabilitiesGoodwillAndIntangibleAssetsIntangibleAssets	6093000	USD
CY2014Q4	us-gaap	Deferred Tax Liabilities Other DeferredTaxLiabilitiesOther	1589000	USD
CY2015Q4	us-gaap	Deferred Tax Liabilities Other DeferredTaxLiabilitiesOther	984000	USD
CY2014Q4	us-gaap	Deferred Tax Liabilities Property Plant And Equipment DeferredTaxLiabilitiesPropertyPlantAndEquipment	4049000	USD
CY2015Q4	us-gaap	Deferred Tax Liabilities Property Plant And Equipment DeferredTaxLiabilitiesPropertyPlantAndEquipment	2039000	USD
CY2015Q2	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
	us-gaap	Defined Benefit Plan Actuarial Gain Loss DefinedBenefitPlanActuarialGainLoss	147000	USD
	us-gaap	Defined Benefit Plan Amortization Of Gains Losses DefinedBenefitPlanAmortizationOfGainsLosses	-18000	USD
	us-gaap	Defined Benefit Plan Amortization Of Prior Service Cost Credit DefinedBenefitPlanAmortizationOfPriorServiceCostCredit	60000	USD
CY2015Q4	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
CY2015Q2	us-gaap	Defined Benefit Plan Benefit Obligation DefinedBenefitPlanBenefitObligation	7122000	USD
CY2015Q4	us-gaap	Defined Benefit Plan Benefit Obligation DefinedBenefitPlanBenefitObligation	7444000	USD
	us-gaap	Defined Benefit Plan Benefits Paid DefinedBenefitPlanBenefitsPaid	67000	USD
CY2013	us-gaap	Defined Benefit Plan Contributions By Employer DefinedBenefitPlanContributionsByEmployer	1700000	USD
CY2014	us-gaap	Defined Benefit Plan Contributions By Employer DefinedBenefitPlanContributionsByEmployer	1700000	USD
CY2015	us-gaap	Defined Benefit Plan Contributions By Employer DefinedBenefitPlanContributionsByEmployer	2200000	USD
	us-gaap	Defined Benefit Plan Interest Cost DefinedBenefitPlanInterestCost	202000	USD
	us-gaap	Defined Benefit Plan Net Periodic Benefit Cost DefinedBenefitPlanNetPeriodicBenefitCost	578000	USD
	us-gaap	Defined Benefit Plan Service Cost DefinedBenefitPlanServiceCost	334000	USD
CY2015	us-gaap	Defined Contribution Plan Maximum Annual Contributions Per Employee Amount DefinedContributionPlanMaximumAnnualContributionsPerEmployeeAmount	18000	USD
CY2014Q4	us-gaap	Deposits Deposits	8931043000	USD
CY2015Q4	us-gaap	Deposits Deposits	12030624000	USD
CY2014Q4	us-gaap	Deposits Savings Deposits DepositsSavingsDeposits	3869699000	USD
CY2015Q4	us-gaap	Deposits Savings Deposits DepositsSavingsDeposits	5296921000	USD
CY2014Q4	us-gaap	Deposits Wholesale DepositsWholesale	257000000	USD
CY2015Q4	us-gaap	Deposits Wholesale DepositsWholesale	184200000	USD
CY2013	us-gaap	Depreciation And Amortization DepreciationAndAmortization	6859000	USD
CY2014	us-gaap	Depreciation And Amortization DepreciationAndAmortization	6166000	USD
CY2015	us-gaap	Depreciation And Amortization DepreciationAndAmortization	8466000	USD
CY2013	us-gaap	Depreciation Nonproduction DepreciationNonproduction	6000000	USD
CY2014	us-gaap	Depreciation Nonproduction DepreciationNonproduction	6000000	USD
CY2015	us-gaap	Depreciation Nonproduction DepreciationNonproduction	7700000	USD
CY2013Q4	us-gaap	Derivative Assets DerivativeAssets	2002000	USD
CY2014Q4	us-gaap	Derivative Assets DerivativeAssets	7000	USD
CY2015Q4	us-gaap	Derivative Assets DerivativeAssets	3569000	USD
CY2013Q4	us-gaap	Derivative Fair Value Of Derivative Asset DerivativeFairValueOfDerivativeAsset	2386000	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
CY2013Q4	us-gaap	Derivative Fair Value Of Derivative Liability DerivativeFairValueOfDerivativeLiability	788000	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
CY2013Q4	us-gaap	Derivative Liabilities DerivativeLiabilities	404000	USD
CY2014Q4	us-gaap	Derivative Liabilities DerivativeLiabilities	57820000	USD
CY2015Q4	us-gaap	Derivative Liabilities DerivativeLiabilities	64785000	USD
CY2013	us-gaap	Derivative Net Hedge Ineffectiveness Gain Loss DerivativeNetHedgeIneffectivenessGainLoss	-9000	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
CY2013	us-gaap	Dividend Income Securities Operating Taxable DividendIncomeSecuritiesOperatingTaxable	4454000	USD
CY2014	us-gaap	Dividend Income Securities Operating Taxable DividendIncomeSecuritiesOperatingTaxable	6562000	USD
CY2015	us-gaap	Dividend Income Securities Operating Taxable DividendIncomeSecuritiesOperatingTaxable	10317000	USD
CY2013	us-gaap	Dividends Preferred Stock Cash DividendsPreferredStockCash	1410000	USD
CY2014	us-gaap	Dividends Preferred Stock Cash DividendsPreferredStockCash	1387000	USD
CY2015	us-gaap	Dividends Preferred Stock Cash DividendsPreferredStockCash	750000	USD
CY2013	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.33
CY2014Q1	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.35
CY2014Q2	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.41
CY2014Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.47
CY2014Q4	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.46
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
CY2013	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.31
CY2014Q1	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.35
CY2014Q2	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.40
CY2014Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.46
CY2014Q4	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.46
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
CY2013	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.2048
CY2014	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.2450
CY2015	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.2487
CY2015Q4	us-gaap	Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized Share Based Awards Other Than Options EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedShareBasedAwardsOtherThanOptions	18500000	USD
CY2013	us-gaap	Excess Tax Benefit From Share Based Compensation Financing Activities ExcessTaxBenefitFromShareBasedCompensationFinancingActivities	1552000	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
CY2013	us-gaap	Excess Tax Benefit From Share Based Compensation Operating Activities ExcessTaxBenefitFromShareBasedCompensationOperatingActivities	1552000	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
CY2013	us-gaap	Fair Value Assets And Liabilities Measured On Recurring Basis Gain Loss Included In Earnings FairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisGainLossIncludedInEarnings	-7717000	USD
CY2014	us-gaap	Fair Value Assets And Liabilities Measured On Recurring Basis Gain Loss Included In Earnings FairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisGainLossIncludedInEarnings	-367000	USD
CY2015	us-gaap	Fair Value Assets And Liabilities Measured On Recurring Basis Gain Loss Included In Earnings FairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisGainLossIncludedInEarnings	-2181000	USD
CY2014Q4	us-gaap	Fair Value Disclosure Offbalance Sheet Risks Face Amount Liability FairValueDisclosureOffbalanceSheetRisksFaceAmountLiability	2256117000	USD
CY2015Q4	us-gaap	Fair Value Disclosure Offbalance Sheet Risks Face Amount Liability FairValueDisclosureOffbalanceSheetRisksFaceAmountLiability	3733203000	USD
CY2013	us-gaap	Fair Value Liabilities Measured On Recurring Basis Change In Unrealized Gain Loss FairValueLiabilitiesMeasuredOnRecurringBasisChangeInUnrealizedGainLoss	-5900000	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
CY2014Q4	us-gaap	Fair Value Liabilities Measured On Recurring Basis Subordinated Debt Obligations FairValueLiabilitiesMeasuredOnRecurringBasisSubordinatedDebtObligations	40437000	USD
CY2015Q4	us-gaap	Fair Value Liabilities Measured On Recurring Basis Subordinated Debt Obligations FairValueLiabilitiesMeasuredOnRecurringBasisSubordinatedDebtObligations	46928000	USD
CY2013	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Gain Loss Included In Other Comprehensive Income Loss FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetGainLossIncludedInOtherComprehensiveIncomeLoss	0	USD
CY2014	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Gain Loss Included In Other Comprehensive Income Loss FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetGainLossIncludedInOtherComprehensiveIncomeLoss	5202000	USD
CY2015	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Gain Loss Included In Other Comprehensive Income Loss FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetGainLossIncludedInOtherComprehensiveIncomeLoss	-1385000	USD
CY2013	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Transfers Into Level3 FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetTransfersIntoLevel3	0	USD
CY2014	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Transfers Into Level3 FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetTransfersIntoLevel3	-6243000	USD
CY2015	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Transfers Into Level3 FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetTransfersIntoLevel3	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
CY2014	us-gaap	Federal Home Loan Bank Advances Activity For Year Average Interest Rate For Year FederalHomeLoanBankAdvancesActivityForYearAverageInterestRateForYear	0.0124
CY2015	us-gaap	Federal Home Loan Bank Advances Activity For Year Average Interest Rate For Year FederalHomeLoanBankAdvancesActivityForYearAverageInterestRateForYear	0.0036
CY2014Q4	us-gaap	Federal Home Loan Bank Advances Maturities Summary Due Within One Year Of Balance Sheet Date FederalHomeLoanBankAdvancesMaturitiesSummaryDueWithinOneYearOfBalanceSheetDate	96987000	USD
CY2015Q4	us-gaap	Federal Home Loan Bank Advances Maturities Summary Due Within One Year Of Balance Sheet Date FederalHomeLoanBankAdvancesMaturitiesSummaryDueWithinOneYearOfBalanceSheetDate	150000000	USD
CY2013	us-gaap	Fees And Commissions FeesAndCommissions	10123000	USD
CY2014	us-gaap	Fees And Commissions FeesAndCommissions	10567000	USD
CY2015	us-gaap	Fees And Commissions FeesAndCommissions	14639000	USD
CY2013	us-gaap	Fees And Commissions Credit And Debit Cards FeesAndCommissionsCreditAndDebitCards	2626000	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
CY2012Q4	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	95427000	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
CY2014Q4	us-gaap	Financing Receivable Allowance For Credit Losses Collectively Evaluated For Impairment FinancingReceivableAllowanceForCreditLossesCollectivelyEvaluatedForImpairment	99188000	USD
CY2015Q4	us-gaap	Financing Receivable Allowance For Credit Losses Collectively Evaluated For Impairment FinancingReceivableAllowanceForCreditLossesCollectivelyEvaluatedForImpairment	114374000	USD
CY2014Q4	us-gaap	Financing Receivable Allowance For Credit Losses Individually Evaluated For Impairment1 FinancingReceivableAllowanceForCreditLossesIndividuallyEvaluatedForImpairment1	10765000	USD
CY2015Q4	us-gaap	Financing Receivable Allowance For Credit Losses Individually Evaluated For Impairment1 FinancingReceivableAllowanceForCreditLossesIndividuallyEvaluatedForImpairment1	4658000	USD
CY2013	us-gaap	Financing Receivable Allowance For Credit Losses Recovery FinancingReceivableAllowanceForCreditLossesRecovery	12882000	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
CY2013	us-gaap	Financing Receivable Allowance For Credit Losses Write Offs FinancingReceivableAllowanceForCreditLossesWriteOffs	21479000	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
CY2014Q4	us-gaap	Financing Receivable Collectively Evaluated For Impairment FinancingReceivableCollectivelyEvaluatedForImpairment	8135041000	USD
CY2015Q4	us-gaap	Financing Receivable Collectively Evaluated For Impairment FinancingReceivableCollectivelyEvaluatedForImpairment	10901140000	USD
CY2014Q4	us-gaap	Financing Receivable Individually Evaluated For Impairment FinancingReceivableIndividuallyEvaluatedForImpairment	166750000	USD
CY2015Q4	us-gaap	Financing Receivable Individually Evaluated For Impairment FinancingReceivableIndividuallyEvaluatedForImpairment	128874000	USD
CY2013	us-gaap	Financing Receivable Modifications Number Of Contracts2 FinancingReceivableModificationsNumberOfContracts2	43
CY2014	us-gaap	Financing Receivable Modifications Number Of Contracts2 FinancingReceivableModificationsNumberOfContracts2	24
CY2015	us-gaap	Financing Receivable Modifications Number Of Contracts2 FinancingReceivableModificationsNumberOfContracts2	3
CY2013	us-gaap	Financing Receivable Modifications Post Modification Recorded Investment2 FinancingReceivableModificationsPostModificationRecordedInvestment2	22694000	USD
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
CY2013	us-gaap	Financing Receivable Modifications Pre Modification Recorded Investment2 FinancingReceivableModificationsPreModificationRecordedInvestment2	25019000	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
CY2013	us-gaap	Financing Receivable Modifications Subsequent Default Number Of Contracts1 FinancingReceivableModificationsSubsequentDefaultNumberOfContracts1	15
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
CY2013	us-gaap	Financing Receivable Modifications Subsequent Default Recorded Investment1 FinancingReceivableModificationsSubsequentDefaultRecordedInvestment1	6370000	USD
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
CY2014Q4	us-gaap	Financing Receivable Recorded Investment90 Days Past Due And Still Accruing FinancingReceivableRecordedInvestment90DaysPastDueAndStillAccruing	5132000	USD
CY2015Q4	us-gaap	Financing Receivable Recorded Investment90 Days Past Due And Still Accruing FinancingReceivableRecordedInvestment90DaysPastDueAndStillAccruing	3028000	USD
CY2014Q4	us-gaap	Financing Receivable Recorded Investment Current FinancingReceivableRecordedInvestmentCurrent	8366782000	USD
CY2015Q4	us-gaap	Financing Receivable Recorded Investment Current FinancingReceivableRecordedInvestmentCurrent	11046589000	USD
CY2014Q4	us-gaap	Financing Receivable Recorded Investment Nonaccrual Status FinancingReceivableRecordedInvestmentNonaccrualStatus	67659000	USD
CY2015Q4	us-gaap	Financing Receivable Recorded Investment Nonaccrual Status FinancingReceivableRecordedInvestmentNonaccrualStatus	48381000	USD
CY2014Q4	us-gaap	Financing Receivable Recorded Investment Past Due FinancingReceivableRecordedInvestmentPastDue	31483000	USD
CY2015Q4	us-gaap	Financing Receivable Recorded Investment Past Due FinancingReceivableRecordedInvestmentPastDue	66265000	USD
CY2015	us-gaap	Financing Receivable Significant Sales FinancingReceivableSignificantSales	102200000	USD
CY2015Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense After Year Five FiniteLivedIntangibleAssetsAmortizationExpenseAfterYearFive	5869000	USD
CY2015Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Next Twelve Months FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths	2788000	USD
CY2015Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Five FiniteLivedIntangibleAssetsAmortizationExpenseYearFive	1494000	USD
CY2015Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Four FiniteLivedIntangibleAssetsAmortizationExpenseYearFour	1547000	USD
CY2015Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Three FiniteLivedIntangibleAssetsAmortizationExpenseYearThree	1594000	USD
CY2015Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Two FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo	2074000	USD
CY2015Q4	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	15366000	USD
CY2012Q4	us-gaap	Foreclosed Assets ForeclosedAssets	77247000	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
CY2013	us-gaap	Gain Loss On Disposition Of Assets GainLossOnDispositionOfAssets	206000	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
CY2013	us-gaap	Gain Loss On Sale Of Investments GainLossOnSaleOfInvestments	-1195000	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
CY2013	us-gaap	Gain Loss On Sale Of Securities Net GainLossOnSaleOfSecuritiesNet	-1195000	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
CY2013	us-gaap	Gain On Sale Of Investments GainOnSaleOfInvestments	1569000	USD
CY2014	us-gaap	Gain On Sale Of Investments GainOnSaleOfInvestments	1118000	USD
CY2015	us-gaap	Gain On Sale Of Investments GainOnSaleOfInvestments	1144000	USD
CY2013	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	-1387000	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
CY2013	us-gaap	Gains Losses On Sales Of Other Real Estate GainsLossesOnSalesOfOtherRealEstate	5924000	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
CY2013	us-gaap	General Insurance Expense GeneralInsuranceExpense	8094000	USD
CY2014	us-gaap	General Insurance Expense GeneralInsuranceExpense	8862000	USD
CY2015	us-gaap	General Insurance Expense GeneralInsuranceExpense	11003000	USD
CY2014Q4	us-gaap	Goodwill Goodwill	23224000	USD
CY2015Q4	us-gaap	Goodwill Goodwill	289638000	USD
CY2015Q4	us-gaap	Goodwill Goodwill	289600000	USD
CY2013Q4	us-gaap	Held To Maturity Securities Transferred Security At Carrying Value HeldToMaturitySecuritiesTransferredSecurityAtCarryingValue	0	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
CY2013	us-gaap	Impaired Financing Receivable Average Recorded Investment ImpairedFinancingReceivableAverageRecordedInvestment	182670000	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
CY2013	us-gaap	Impaired Financing Receivable Interest Income Accrual Method ImpairedFinancingReceivableInterestIncomeAccrualMethod	6235000	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
CY2013	us-gaap	Impaired Financing Receivable Interest Income Cash Basis Method ImpairedFinancingReceivableInterestIncomeCashBasisMethod	1916000	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
CY2014Q4	us-gaap	Impaired Financing Receivable Recorded Investment ImpairedFinancingReceivableRecordedInvestment	166750000	USD
CY2015Q4	us-gaap	Impaired Financing Receivable Recorded Investment ImpairedFinancingReceivableRecordedInvestment	128874000	USD
CY2014Q4	us-gaap	Impaired Financing Receivable Related Allowance ImpairedFinancingReceivableRelatedAllowance	10765000	USD
CY2015Q4	us-gaap	Impaired Financing Receivable Related Allowance ImpairedFinancingReceivableRelatedAllowance	4658000	USD
CY2014Q4	us-gaap	Impaired Financing Receivable With No Related Allowance Recorded Investment ImpairedFinancingReceivableWithNoRelatedAllowanceRecordedInvestment	41822000	USD
CY2015Q4	us-gaap	Impaired Financing Receivable With No Related Allowance Recorded Investment ImpairedFinancingReceivableWithNoRelatedAllowanceRecordedInvestment	104587000	USD
CY2014Q4	us-gaap	Impaired Financing Receivable With No Related Allowance Unpaid Principal Balance ImpairedFinancingReceivableWithNoRelatedAllowanceUnpaidPrincipalBalance	44220000	USD
CY2015Q4	us-gaap	Impaired Financing Receivable With No Related Allowance Unpaid Principal Balance ImpairedFinancingReceivableWithNoRelatedAllowanceUnpaidPrincipalBalance	333268000	USD
CY2014Q4	us-gaap	Impaired Financing Receivable With Related Allowance Recorded Investment ImpairedFinancingReceivableWithRelatedAllowanceRecordedInvestment	124928000	USD
CY2015Q4	us-gaap	Impaired Financing Receivable With Related Allowance Recorded Investment ImpairedFinancingReceivableWithRelatedAllowanceRecordedInvestment	24287000	USD
CY2014Q4	us-gaap	Impaired Financing Receivable With Related Allowance Unpaid Principal Balance ImpairedFinancingReceivableWithRelatedAllowanceUnpaidPrincipalBalance	134791000	USD
CY2015Q4	us-gaap	Impaired Financing Receivable With Related Allowance Unpaid Principal Balance ImpairedFinancingReceivableWithRelatedAllowanceUnpaidPrincipalBalance	25345000	USD
CY2013	us-gaap	Income Loss From Continuing Operations IncomeLossFromContinuingOperations	115826000	USD
CY2014Q1	us-gaap	Income Loss From Continuing Operations IncomeLossFromContinuingOperations	31739000	USD
CY2014Q2	us-gaap	Income Loss From Continuing Operations IncomeLossFromContinuingOperations	36042000	USD
CY2014Q3	us-gaap	Income Loss From Continuing Operations IncomeLossFromContinuingOperations	40919000	USD
CY2014Q4	us-gaap	Income Loss From Continuing Operations IncomeLossFromContinuingOperations	40409000	USD
CY2014	us-gaap	Income Loss From Continuing Operations IncomeLossFromContinuingOperations	149109000	USD
CY2015	us-gaap	Income Loss From Continuing Operations IncomeLossFromContinuingOperations	194244000	USD
CY2013	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	145656000	USD
CY2014Q1	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	42363000	USD
CY2014Q2	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	46748000	USD
CY2014Q3	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	53868000	USD
CY2014Q4	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	54520000	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
CY2013	us-gaap	Income Loss From Continuing Operations Per Basic Share IncomeLossFromContinuingOperationsPerBasicShare	1.34
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
CY2013	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	1.32
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
CY2013	us-gaap	Income Loss From Discontinued Operations Net Of Tax Attributable To Reporting Entity IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity	-861000	USD
CY2014Q1	us-gaap	Income Loss From Discontinued Operations Net Of Tax Attributable To Reporting Entity IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity	-654000	USD
CY2014Q2	us-gaap	Income Loss From Discontinued Operations Net Of Tax Attributable To Reporting Entity IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity	-504000	USD
CY2014Q3	us-gaap	Income Loss From Discontinued Operations Net Of Tax Attributable To Reporting Entity IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity	0	USD
CY2014Q4	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 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
CY2013	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Basic Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare	-0.01
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
CY2013	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Diluted Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare	-0.01
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
CY2013	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	29830000	USD
CY2014Q1	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	10624000	USD
CY2014Q2	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	10706000	USD
CY2014Q3	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	12949000	USD
CY2014Q4	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	14111000	USD
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
CY2013	us-gaap	Income Tax Reconciliation Change In Deferred Tax Assets Valuation Allowance IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance	-2391000	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
CY2013	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	50979000	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
CY2013	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	3016000	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
CY2013	us-gaap	Income Tax Reconciliation Tax Exempt Income IncomeTaxReconciliationTaxExemptIncome	7308000	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
CY2013	us-gaap	Income Taxes Paid IncomeTaxesPaid	19105000	USD
CY2014	us-gaap	Income Taxes Paid IncomeTaxesPaid	35556000	USD
CY2015	us-gaap	Income Taxes Paid IncomeTaxesPaid	54590000	USD
CY2015	us-gaap	Increase Decrease In Deferred Income Taxes IncreaseDecreaseInDeferredIncomeTaxes	-23700000	USD
CY2013	us-gaap	Increase Decrease In Deposits IncreaseDecreaseInDeposits	1045173000	USD
CY2014	us-gaap	Increase Decrease In Deposits IncreaseDecreaseInDeposits	1093353000	USD
CY2015	us-gaap	Increase Decrease In Deposits IncreaseDecreaseInDeposits	1357855000	USD
CY2013	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	-33185000	USD
CY2014	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	-9242000	USD
CY2015	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	9999000	USD
CY2013	us-gaap	Increase Decrease In Other Operating Liabilities IncreaseDecreaseInOtherOperatingLiabilities	13318000	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
CY2014Q4	us-gaap	Indefinite Lived Trade Names IndefiniteLivedTradeNames	0	USD
CY2015Q4	us-gaap	Indefinite Lived Trade Names IndefiniteLivedTradeNames	350000	USD
CY2013	us-gaap	Information Technology And Data Processing InformationTechnologyAndDataProcessing	8589000	USD
CY2014	us-gaap	Information Technology And Data Processing InformationTechnologyAndDataProcessing	10057000	USD
CY2015	us-gaap	Information Technology And Data Processing InformationTechnologyAndDataProcessing	14776000	USD
CY2014Q4	us-gaap	Intangible Assets Net Excluding Goodwill IntangibleAssetsNetExcludingGoodwill	2689000	USD
CY2015Q4	us-gaap	Intangible Assets Net Excluding Goodwill IntangibleAssetsNetExcludingGoodwill	15716000	USD
CY2014Q4	us-gaap	Intangible Assets Net Including Goodwill IntangibleAssetsNetIncludingGoodwill	25900000	USD
CY2015Q4	us-gaap	Intangible Assets Net Including Goodwill IntangibleAssetsNetIncludingGoodwill	305400000	USD
CY2013	us-gaap	Interest And Dividend Income Operating InterestAndDividendIncomeOperating	362655000	USD
CY2014Q1	us-gaap	Interest And Dividend Income Operating InterestAndDividendIncomeOperating	98701000	USD
CY2014Q2	us-gaap	Interest And Dividend Income Operating InterestAndDividendIncomeOperating	101973000	USD
CY2014Q3	us-gaap	Interest And Dividend Income Operating InterestAndDividendIncomeOperating	105554000	USD
CY2014Q4	us-gaap	Interest And Dividend Income Operating InterestAndDividendIncomeOperating	110151000	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
CY2013	us-gaap	Interest And Dividend Income Securities InterestAndDividendIncomeSecurities	6000	USD
CY2014	us-gaap	Interest And Dividend Income Securities InterestAndDividendIncomeSecurities	7000	USD
CY2015	us-gaap	Interest And Dividend Income Securities InterestAndDividendIncomeSecurities	2000	USD
CY2013	us-gaap	Interest And Fee Income Loans And Leases InterestAndFeeIncomeLoansAndLeases	326714000	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
CY2014Q4	us-gaap	Interest Bearing Deposit Liabilities InterestBearingDepositLiabilities	6642995000	USD
CY2015Q4	us-gaap	Interest Bearing Deposit Liabilities InterestBearingDepositLiabilities	7936648000	USD
CY2014Q4	us-gaap	Interest Bearing Deposits In Banks InterestBearingDepositsInBanks	39067000	USD
CY2015Q4	us-gaap	Interest Bearing Deposits In Banks InterestBearingDepositsInBanks	90931000	USD
CY2013	us-gaap	Interest Expense InterestExpense	29760000	USD
CY2014Q1	us-gaap	Interest Expense InterestExpense	7924000	USD
CY2014Q2	us-gaap	Interest Expense InterestExpense	8075000	USD
CY2014Q3	us-gaap	Interest Expense InterestExpense	7481000	USD
CY2014Q4	us-gaap	Interest Expense InterestExpense	8006000	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
CY2013	us-gaap	Interest Expense Borrowings InterestExpenseBorrowings	11506000	USD
CY2014	us-gaap	Interest Expense Borrowings InterestExpenseBorrowings	9639000	USD
CY2015	us-gaap	Interest Expense Borrowings InterestExpenseBorrowings	5678000	USD
CY2013	us-gaap	Interest Expense Debt InterestExpenseDebt	1823000	USD
CY2014	us-gaap	Interest Expense Debt InterestExpenseDebt	1754000	USD
CY2015	us-gaap	Interest Expense Debt InterestExpenseDebt	2151000	USD
CY2013	us-gaap	Interest Expense Deposits InterestExpenseDeposits	16335000	USD
CY2014	us-gaap	Interest Expense Deposits InterestExpenseDeposits	20012000	USD
CY2015	us-gaap	Interest Expense Deposits InterestExpenseDeposits	21795000	USD
CY2015	us-gaap	Interest Expense Related Party InterestExpenseRelatedParty	100000	USD
CY2013	us-gaap	Interest Expense Securities Sold Under Agreements To Repurchase InterestExpenseSecuritiesSoldUnderAgreementsToRepurchase	96000	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
CY2013	us-gaap	Interest Expense Subordinated Notes And Debentures InterestExpenseSubordinatedNotesAndDebentures	1823000	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
CY2013	us-gaap	Interest Income Expense After Provision For Loan Loss InterestIncomeExpenseAfterProvisionForLoanLoss	319675000	USD
CY2014Q1	us-gaap	Interest Income Expense After Provision For Loan Loss InterestIncomeExpenseAfterProvisionForLoanLoss	87277000	USD
CY2014Q2	us-gaap	Interest Income Expense After Provision For Loan Loss InterestIncomeExpenseAfterProvisionForLoanLoss	93391000	USD
CY2014Q3	us-gaap	Interest Income Expense After Provision For Loan Loss InterestIncomeExpenseAfterProvisionForLoanLoss	97654000	USD
CY2014Q4	us-gaap	Interest Income Expense After Provision For Loan Loss InterestIncomeExpenseAfterProvisionForLoanLoss	101845000	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
CY2013	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	332895000	USD
CY2014Q1	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	90777000	USD
CY2014Q2	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	93898000	USD
CY2014Q3	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	98073000	USD
CY2014Q4	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	102145000	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
CY2014	us-gaap	Interest Income Related Party InterestIncomeRelatedParty	1900000	USD
CY2015	us-gaap	Interest Income Related Party InterestIncomeRelatedParty	2700000	USD
CY2013	us-gaap	Interest Income Securities Taxable InterestIncomeSecuritiesTaxable	30382000	USD
CY2014	us-gaap	Interest Income Securities Taxable InterestIncomeSecuritiesTaxable	38603000	USD
CY2015	us-gaap	Interest Income Securities Taxable InterestIncomeSecuritiesTaxable	37888000	USD
CY2013	us-gaap	Interest Paid InterestPaid	28613000	USD
CY2014	us-gaap	Interest Paid InterestPaid	26516000	USD
CY2015	us-gaap	Interest Paid InterestPaid	28831000	USD
CY2014Q4	us-gaap	Junior Subordinated Debenture Owed To Unconsolidated Subsidiary Trust JuniorSubordinatedDebentureOwedToUnconsolidatedSubsidiaryTrust	40437000	USD
CY2015Q4	us-gaap	Junior Subordinated Debenture Owed To Unconsolidated Subsidiary Trust JuniorSubordinatedDebentureOwedToUnconsolidatedSubsidiaryTrust	58370000	USD
CY2013	us-gaap	Labor And Related Expense LaborAndRelatedExpense	113434000	USD
CY2014	us-gaap	Labor And Related Expense LaborAndRelatedExpense	126630000	USD
CY2015	us-gaap	Labor And Related Expense LaborAndRelatedExpense	149828000	USD
CY2014Q4	us-gaap	Land And Land Improvements LandAndLandImprovements	33971000	USD
CY2015Q4	us-gaap	Land And Land Improvements LandAndLandImprovements	33971000	USD
CY2014Q4	us-gaap	Leasehold Improvements Gross LeaseholdImprovementsGross	18160000	USD
CY2015Q4	us-gaap	Leasehold Improvements Gross LeaseholdImprovementsGross	18958000	USD
CY2014Q4	us-gaap	Liabilities Liabilities	9599570000	USD
CY2015Q4	us-gaap	Liabilities Liabilities	12683587000	USD
CY2014Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	10600498000	USD
CY2015Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	14275089000	USD
CY2014Q4	us-gaap	Life Insurance Corporate Or Bank Owned Amount LifeInsuranceCorporateOrBankOwnedAmount	321900000	USD
CY2015Q4	us-gaap	Life Insurance Corporate Or Bank Owned Amount LifeInsuranceCorporateOrBankOwnedAmount	361700000	USD
CY2015Q3	us-gaap	Line Of Credit Facility Expiration Period LineOfCreditFacilityExpirationPeriod	P1Y
CY2014Q4	us-gaap	Line Of Credit Facility Interest Rate At Period End LineOfCreditFacilityInterestRateAtPeriodEnd	0.0175
CY2014Q4	us-gaap	Lines Of Credit Current LinesOfCreditCurrent	25000000	USD
CY2015Q4	us-gaap	Lines Of Credit Current LinesOfCreditCurrent	0	USD
CY2014Q4	us-gaap	Loans And Leases Receivable Allowance LoansAndLeasesReceivableAllowance	110216000	USD
CY2015Q4	us-gaap	Loans And Leases Receivable Allowance LoansAndLeasesReceivableAllowance	119068000	USD
CY2014Q4	us-gaap	Loans And Leases Receivable Deferred Income LoansAndLeasesReceivableDeferredIncome	12500000	USD
CY2015Q4	us-gaap	Loans And Leases Receivable Deferred Income LoansAndLeasesReceivableDeferredIncome	19200000	USD
CY2015	us-gaap	Loans And Leases Receivable Gain Loss On Sales Net LoansAndLeasesReceivableGainLossOnSalesNet	500000	USD
CY2014Q4	us-gaap	Loans And Leases Receivable Gross Carrying Amount LoansAndLeasesReceivableGrossCarryingAmount	8398265000	USD
CY2015Q4	us-gaap	Loans And Leases Receivable Gross Carrying Amount LoansAndLeasesReceivableGrossCarryingAmount	11112854000	USD
CY2013	us-gaap	Loans And Leases Receivable Impaired Interest Lost On Nonaccrual Loans LoansAndLeasesReceivableImpairedInterestLostOnNonaccrualLoans	5400000	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
CY2014Q4	us-gaap	Loans And Leases Receivable Net Of Deferred Income LoansAndLeasesReceivableNetOfDeferredIncome	8398265000	USD
CY2015Q4	us-gaap	Loans And Leases Receivable Net Of Deferred Income LoansAndLeasesReceivableNetOfDeferredIncome	11112854000	USD
CY2014Q4	us-gaap	Loans And Leases Receivable Net Reported Amount LoansAndLeasesReceivableNetReportedAmount	8288049000	USD
CY2015Q4	us-gaap	Loans And Leases Receivable Net Reported Amount LoansAndLeasesReceivableNetReportedAmount	10993786000	USD
CY2013Q4	us-gaap	Loans And Leases Receivable Related Parties LoansAndLeasesReceivableRelatedParties	30783000	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
CY2014Q4	us-gaap	Long Term Debt Noncurrent LongTermDebtNoncurrent	210094000	USD
CY2015Q4	us-gaap	Long Term Debt Noncurrent LongTermDebtNoncurrent	0	USD
CY2014Q4	us-gaap	Longterm Debt Weighted Average Interest Rate LongtermDebtWeightedAverageInterestRate	0.0106
CY2013	us-gaap	Loss On Sale Of Investments LossOnSaleOfInvestments	2764000	USD
CY2014	us-gaap	Loss On Sale Of Investments LossOnSaleOfInvestments	361000	USD
CY2015	us-gaap	Loss On Sale Of Investments LossOnSaleOfInvestments	529000	USD
CY2013	us-gaap	Marketing Expense MarketingExpense	2581000	USD
CY2014	us-gaap	Marketing Expense MarketingExpense	2300000	USD
CY2015	us-gaap	Marketing Expense MarketingExpense	2885000	USD
CY2014Q4	us-gaap	Money Market Funds At Carrying Value MoneyMarketFundsAtCarryingValue	451000	USD
CY2015Q4	us-gaap	Money Market Funds At Carrying Value MoneyMarketFundsAtCarryingValue	122000	USD
CY2013	us-gaap	Mortgage Loans On Real Estate Foreclosures MortgageLoansOnRealEstateForeclosures	24911000	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
CY2013	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	1109182000	USD
CY2014	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	1081606000	USD
CY2015	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	1213875000	USD
CY2013	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-1173342000	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
CY2013	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	165049000	USD
CY2014	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	163289000	USD
CY2015	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	212812000	USD
CY2013	us-gaap	Net Income Loss NetIncomeLoss	114965000	USD
CY2014Q1	us-gaap	Net Income Loss NetIncomeLoss	31085000	USD
CY2014Q2	us-gaap	Net Income Loss NetIncomeLoss	35538000	USD
CY2014Q3	us-gaap	Net Income Loss NetIncomeLoss	40919000	USD
CY2014Q4	us-gaap	Net Income Loss NetIncomeLoss	40409000	USD
CY2014	us-gaap	Net Income Loss NetIncomeLoss	147951000	USD
CY2015Q1	us-gaap	Net Income Loss NetIncomeLoss	40383000	USD
CY2015Q2	us-gaap	Net Income Loss NetIncomeLoss	39475000	USD
CY2015Q3	us-gaap	Net Income Loss NetIncomeLoss	55860000	USD
CY2015Q4	us-gaap	Net Income Loss NetIncomeLoss	58526000	USD
CY2015	us-gaap	Net Income Loss NetIncomeLoss	194244000	USD
CY2013	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	113555000	USD
CY2014Q1	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	30732000	USD
CY2014Q2	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	35186000	USD
CY2014Q3	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	40566000	USD
CY2014Q4	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	40080000	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
CY2014Q4	us-gaap	Noninterest Bearing Deposit Liabilities NoninterestBearingDepositLiabilities	2288048000	USD
CY2015Q4	us-gaap	Noninterest Bearing Deposit Liabilities NoninterestBearingDepositLiabilities	4093976000	USD
CY2013	us-gaap	Noninterest Expense NoninterestExpense	196216000	USD
CY2014Q1	us-gaap	Noninterest Expense NoninterestExpense	49476000	USD
CY2014Q2	us-gaap	Noninterest Expense NoninterestExpense	52242000	USD
CY2014Q3	us-gaap	Noninterest Expense NoninterestExpense	49859000	USD
CY2014Q4	us-gaap	Noninterest Expense NoninterestExpense	55742000	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
CY2013	us-gaap	Noninterest Income NoninterestIncome	22197000	USD
CY2014Q1	us-gaap	Noninterest Income NoninterestIncome	4562000	USD
CY2014Q2	us-gaap	Noninterest Income NoninterestIncome	5599000	USD
CY2014Q3	us-gaap	Noninterest Income NoninterestIncome	6073000	USD
CY2014Q4	us-gaap	Noninterest Income NoninterestIncome	8417000	USD
CY2014	us-gaap	Noninterest Income NoninterestIncome	24651000	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
CY2013	us-gaap	Noninterest Income Other Operating Income NoninterestIncomeOtherOperatingIncome	3660000	USD
CY2014	us-gaap	Noninterest Income Other Operating Income NoninterestIncomeOtherOperatingIncome	4728000	USD
CY2015	us-gaap	Noninterest Income Other Operating Income NoninterestIncomeOtherOperatingIncome	5022000	USD
CY2014Q4	us-gaap	Notes Receivable Net NotesReceivableNet	8398265000	USD
CY2015Q4	us-gaap	Notes Receivable Net NotesReceivableNet	11112854000	USD
CY2014Q4	us-gaap	Number Of Real Estate Properties NumberOfRealEstateProperties	67	Property
CY2015Q4	us-gaap	Number Of Real Estate Properties NumberOfRealEstateProperties	39	Property
CY2013	us-gaap	Occupancy Net OccupancyNet	19378000	USD
CY2014	us-gaap	Occupancy Net OccupancyNet	18155000	USD
CY2015	us-gaap	Occupancy Net OccupancyNet	22180000	USD
CY2015Q4	us-gaap	Operating Leases Future Minimum Payments Due OperatingLeasesFutureMinimumPaymentsDue	44575000	USD
CY2015Q4	us-gaap	Operating Leases Future Minimum Payments Due Current OperatingLeasesFutureMinimumPaymentsDueCurrent	8547000	USD
CY2015Q4	us-gaap	Operating Leases Future Minimum Payments Due In Five Years OperatingLeasesFutureMinimumPaymentsDueInFiveYears	4986000	USD
CY2015Q4	us-gaap	Operating Leases Future Minimum Payments Due In Four Years OperatingLeasesFutureMinimumPaymentsDueInFourYears	6628000	USD
CY2015Q4	us-gaap	Operating Leases Future Minimum Payments Due In Three Years OperatingLeasesFutureMinimumPaymentsDueInThreeYears	7536000	USD
CY2015Q4	us-gaap	Operating Leases Future Minimum Payments Due In Two Years OperatingLeasesFutureMinimumPaymentsDueInTwoYears	7999000	USD
CY2015Q4	us-gaap	Operating Leases Future Minimum Payments Due Thereafter OperatingLeasesFutureMinimumPaymentsDueThereafter	8879000	USD
CY2013	us-gaap	Operating Leases Rent Expense Net OperatingLeasesRentExpenseNet	6900000	USD
CY2014	us-gaap	Operating Leases Rent Expense Net OperatingLeasesRentExpenseNet	6200000	USD
CY2015	us-gaap	Operating Leases Rent Expense Net OperatingLeasesRentExpenseNet	8100000	USD
CY2014Q4	us-gaap	Operating Loss Carryforwards Valuation Allowance OperatingLossCarryforwardsValuationAllowance	1800000	USD
CY2015Q4	us-gaap	Operating Loss Carryforwards Valuation Allowance OperatingLossCarryforwardsValuationAllowance	0	USD
CY2014	us-gaap	Origination Of Notes Receivable From Related Parties OriginationOfNotesReceivableFromRelatedParties	35341000	USD
CY2015	us-gaap	Origination Of Notes Receivable From Related Parties OriginationOfNotesReceivableFromRelatedParties	10678000	USD
CY2014Q4	us-gaap	Other Assets OtherAssets	198696000	USD
CY2015Q4	us-gaap	Other Assets OtherAssets	273976000	USD
CY2014Q4	us-gaap	Other Borrowings OtherBorrowings	390263000	USD
CY2015Q4	us-gaap	Other Borrowings OtherBorrowings	150000000	USD
CY2015Q4	us-gaap	Other Commitment Due After Fifth Year OtherCommitmentDueAfterFifthYear	367443000	USD
CY2015Q4	us-gaap	Other Commitment Due In Fourth And Fifth Year OtherCommitmentDueInFourthAndFifthYear	269445000	USD
CY2015Q4	us-gaap	Other Commitment Due In Next Twelve Months OtherCommitmentDueInNextTwelveMonths	1689273000	USD
CY2015Q4	us-gaap	Other Commitment Due In Second And Third Year OtherCommitmentDueInSecondAndThirdYear	1407042000	USD
	us-gaap	Other Comprehensive Income Defined Benefit Plans Adjustment Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeDefinedBenefitPlansAdjustmentNetOfTaxPortionAttributableToParent	42000	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
CY2013	us-gaap	Other Comprehensive Income Loss Before Reclassifications Net Of Tax OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax	-30520000	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
CY2013	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-29772000	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
CY2013	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Net Of Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax	0	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 Adjustment Net Of Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax	-90000	USD
CY2014	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansTax	0	USD
CY2015	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansTax	-52000	USD
CY2013	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax	-748000	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
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
CY2013	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 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
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
CY2013	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax	-30503000	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
CY2014Q4	us-gaap	Other Foreclosed Assets OtherForeclosedAssets	57100000	USD
CY2015Q4	us-gaap	Other Foreclosed Assets OtherForeclosedAssets	43900000	USD
CY2013	us-gaap	Other Interest And Dividend Income OtherInterestAndDividendIncome	1105000	USD
CY2014	us-gaap	Other Interest And Dividend Income OtherInterestAndDividendIncome	292000	USD
CY2015	us-gaap	Other Interest And Dividend Income OtherInterestAndDividendIncome	522000	USD
CY2014Q4	us-gaap	Other Liabilities OtherLiabilities	182928000	USD
CY2015Q4	us-gaap	Other Liabilities OtherLiabilities	254480000	USD
CY2014Q4	us-gaap	Other Long Term Debt Current OtherLongTermDebtCurrent	58182000	USD
CY2015Q4	us-gaap	Other Long Term Debt Current OtherLongTermDebtCurrent	0	USD
CY2013	us-gaap	Other Noninterest Expense OtherNoninterestExpense	18751000	USD
CY2014	us-gaap	Other Noninterest Expense OtherNoninterestExpense	23888000	USD
CY2015	us-gaap	Other Noninterest Expense OtherNoninterestExpense	25509000	USD
CY2014Q3	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
CY2013	us-gaap	Payments For Proceeds From Loans And Leases PaymentsForProceedsFromLoansAndLeases	728793000	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
CY2013	us-gaap	Payments For Proceeds From Productive Assets PaymentsForProceedsFromProductiveAssets	18873000	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
CY2013	us-gaap	Payments Of Debt Extinguishment Costs PaymentsOfDebtExtinguishmentCosts	10887000	USD
CY2014	us-gaap	Payments Of Debt Extinguishment Costs PaymentsOfDebtExtinguishmentCosts	6501000	USD
CY2015	us-gaap	Payments Of Debt Extinguishment Costs PaymentsOfDebtExtinguishmentCosts	0	USD
CY2013	us-gaap	Payments Of Dividends Preferred Stock And Preference Stock PaymentsOfDividendsPreferredStockAndPreferenceStock	1410000	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
CY2013	us-gaap	Payments To Acquire Available For Sale Securities PaymentsToAcquireAvailableForSaleSecurities	729768000	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
CY2014Q4	us-gaap	Pledged Financial Instruments Not Separately Reported Other Debt Securities Available For Sale Or Held For Investment PledgedFinancialInstrumentsNotSeparatelyReportedOtherDebtSecuritiesAvailableForSaleOrHeldForInvestment	755500000	USD
CY2015Q4	us-gaap	Pledged Financial Instruments Not Separately Reported Other Debt Securities Available For Sale Or Held For Investment PledgedFinancialInstrumentsNotSeparatelyReportedOtherDebtSecuritiesAvailableForSaleOrHeldForInvestment	830700000	USD
CY2013	us-gaap	Preferred Stock Dividends And Other Adjustments PreferredStockDividendsAndOtherAdjustments	1410000	USD
CY2014Q1	us-gaap	Preferred Stock Dividends And Other Adjustments PreferredStockDividendsAndOtherAdjustments	353000	USD
CY2014Q2	us-gaap	Preferred Stock Dividends And Other Adjustments PreferredStockDividendsAndOtherAdjustments	352000	USD
CY2014Q3	us-gaap	Preferred Stock Dividends And Other Adjustments PreferredStockDividendsAndOtherAdjustments	353000	USD
CY2014Q4	us-gaap	Preferred Stock Dividends And Other Adjustments PreferredStockDividendsAndOtherAdjustments	329000	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
CY2014Q4	us-gaap	Preferred Stock Liquidation Preference PreferredStockLiquidationPreference	1000
CY2014Q4	us-gaap	Preferred Stock Liquidation Preference PreferredStockLiquidationPreference	1000
CY2015Q4	us-gaap	Preferred Stock Liquidation Preference PreferredStockLiquidationPreference	1000
CY2011Q3	us-gaap	Preferred Stock Liquidation Preference PreferredStockLiquidationPreference	1000
CY2015Q4	us-gaap	Preferred Stock Liquidation Preference PreferredStockLiquidationPreference	1000
CY2014Q4	us-gaap	Preferred Stock Par Or Stated Value Per Share PreferredStockParOrStatedValuePerShare	0.0001
CY2015Q4	us-gaap	Preferred Stock Par Or Stated Value Per Share PreferredStockParOrStatedValuePerShare	0.0001
CY2011Q3	us-gaap	Preferred Stock Par Or Stated Value Per Share PreferredStockParOrStatedValuePerShare	0.0001
CY2014Q4	us-gaap	Preferred Stock Redemption Amount PreferredStockRedemptionAmount	70700000	USD
CY2015Q4	us-gaap	Preferred Stock Redemption Amount PreferredStockRedemptionAmount	70700000	USD
CY2014Q4	us-gaap	Preferred Stock Shares Authorized PreferredStockSharesAuthorized	20000000	shares
CY2015Q4	us-gaap	Preferred Stock Shares Authorized PreferredStockSharesAuthorized	20000000	shares
CY2014Q4	us-gaap	Preferred Stock Shares Issued PreferredStockSharesIssued	141000	shares
CY2015Q4	us-gaap	Preferred Stock Shares Issued PreferredStockSharesIssued	70500	shares
CY2011Q3	us-gaap	Preferred Stock Shares Issued PreferredStockSharesIssued	141000000	shares
CY2014Q4	us-gaap	Preferred Stock Shares Issued PreferredStockSharesIssued	141000000	shares
CY2014Q4	us-gaap	Preferred Stock Shares Outstanding PreferredStockSharesOutstanding	141000	shares
CY2015Q4	us-gaap	Preferred Stock Shares Outstanding PreferredStockSharesOutstanding	70500	shares
CY2014Q4	us-gaap	Preferred Stock Value PreferredStockValue	70500000	USD
CY2015Q4	us-gaap	Preferred Stock Value PreferredStockValue	0	USD
CY2011Q3	us-gaap	Preferred Stock Value PreferredStockValue	141000000	USD
CY2013	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	0	USD
CY2014	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	13746000	USD
CY2015	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	28288000	USD
CY2013	us-gaap	Proceeds From Issuance Of Subordinated Long Term Debt ProceedsFromIssuanceOfSubordinatedLongTermDebt	0	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	150000000	USD
CY2013	us-gaap	Proceeds From Life Insurance Policies ProceedsFromLifeInsurancePolicies	2582000	USD
CY2014	us-gaap	Proceeds From Life Insurance Policies ProceedsFromLifeInsurancePolicies	1046000	USD
CY2015	us-gaap	Proceeds From Life Insurance Policies ProceedsFromLifeInsurancePolicies	797000	USD
CY2013	us-gaap	Proceeds From Maturities Prepayments And Calls Of Available For Sale Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities	208228000	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
CY2013	us-gaap	Proceeds From Maturities Prepayments And Calls Of Other Investments ProceedsFromMaturitiesPrepaymentsAndCallsOfOtherInvestments	1881000	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
CY2013	us-gaap	Proceeds From Repayments Of Debt ProceedsFromRepaymentsOfDebt	70159000	USD
CY2014	us-gaap	Proceeds From Repayments Of Debt ProceedsFromRepaymentsOfDebt	40407000	USD
CY2015	us-gaap	Proceeds From Repayments Of Debt ProceedsFromRepaymentsOfDebt	-257038000	USD
CY2013	us-gaap	Proceeds From Sale And Maturity Of Held To Maturity Securities ProceedsFromSaleAndMaturityOfHeldToMaturitySecurities	5375000	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
CY2013	us-gaap	Proceeds From Sale Of Available For Sale Securities ProceedsFromSaleOfAvailableForSaleSecurities	63153000	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
CY2013	us-gaap	Proceeds From Sale Of Foreclosed Assets ProceedsFromSaleOfForeclosedAssets	43242000	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
CY2013	us-gaap	Proceeds From Sale Of Restricted Investments ProceedsFromSaleOfRestrictedInvestments	750000	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
CY2013	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	4595000	USD
CY2014	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	8294000	USD
CY2015	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	1935000	USD
CY2014Q4	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	186793000	USD
CY2015Q4	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	178384000	USD
CY2014Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	113818000	USD
CY2015Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	118535000	USD
CY2013	us-gaap	Provision For Loan Lease And Other Losses ProvisionForLoanLeaseAndOtherLosses	13220000	USD
CY2014Q1	us-gaap	Provision For Loan Lease And Other Losses ProvisionForLoanLeaseAndOtherLosses	3500000	USD
CY2014Q2	us-gaap	Provision For Loan Lease And Other Losses ProvisionForLoanLeaseAndOtherLosses	507000	USD
CY2014Q3	us-gaap	Provision For Loan Lease And Other Losses ProvisionForLoanLeaseAndOtherLosses	419000	USD
CY2014Q4	us-gaap	Provision For Loan Lease And Other Losses ProvisionForLoanLeaseAndOtherLosses	300000	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
CY2012Q4	us-gaap	Real Estate Owned Valuation Allowance RealEstateOwnedValuationAllowance	36227000	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
CY2014Q4	us-gaap	Receivable With Imputed Interest Discount ReceivableWithImputedInterestDiscount	7500000	USD
CY2015Q4	us-gaap	Receivable With Imputed Interest Discount ReceivableWithImputedInterestDiscount	8200000	USD
CY2013	us-gaap	Reclassification From Accumulated Other Comprehensive Income Current Period Net Of Tax ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax	-748000	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
CY2014Q4	us-gaap	Related Party Deposit Liabilities RelatedPartyDepositLiabilities	47700000	USD
CY2015Q4	us-gaap	Related Party Deposit Liabilities RelatedPartyDepositLiabilities	76000000	USD
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
CY2014	us-gaap	Repayment Of Notes Receivable From Related Parties RepaymentOfNotesReceivableFromRelatedParties	-19113000	USD
CY2015	us-gaap	Repayment Of Notes Receivable From Related Parties RepaymentOfNotesReceivableFromRelatedParties	-25481000	USD
CY2015	us-gaap	Repayments Of Debt RepaymentsOfDebt	200000000	USD
CY2014Q4	us-gaap	Restricted Investments RestrictedInvestments	25275000	USD
CY2015Q4	us-gaap	Restricted Investments RestrictedInvestments	58111000	USD
CY2014Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	85453000	USD
CY2015Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	262638000	USD
CY2014Q4	us-gaap	Securities Sold Under Agreements To Repurchase SecuritiesSoldUnderAgreementsToRepurchase	54899000	USD
CY2015Q4	us-gaap	Securities Sold Under Agreements To Repurchase SecuritiesSoldUnderAgreementsToRepurchase	38155000	USD
CY2013	us-gaap	Share Based Compensation ShareBasedCompensation	7699000	USD
CY2014	us-gaap	Share Based Compensation ShareBasedCompensation	12465000	USD
CY2015	us-gaap	Share Based Compensation ShareBasedCompensation	17930000	USD
CY2014	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Forfeited In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod	96000	shares
CY2015	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Forfeited In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod	85000	shares
CY2014	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Forfeitures Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresWeightedAverageGrantDateFairValue	15.05
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
CY2014	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Grants In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod	508000	shares
CY2015	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Grants In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod	509000	shares
CY2014	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	23.90
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
CY2013Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Nonvested Number ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber	1204000	shares
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
CY2013Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Nonvested Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue	9.71
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
CY2014	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Vested In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod	566000	shares
CY2015	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Vested In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod	528000	shares
CY2014	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	9.57
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
CY2015Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber	94000	shares
CY2015Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice	11.72
CY2013	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercises In Period Total Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue	2800000	USD
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
CY2015	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresInPeriod	24000	shares
CY2015	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriod	0	shares
CY2015Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue	3738000	USD
CY2014Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	217000	shares
CY2015Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	224000	shares
CY2014Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	9.70
CY2015Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	19.15
CY2015Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Vested And Expected To Vest Outstanding Aggregate Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingAggregateIntrinsicValue	1691000	USD
CY2015Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Vested And Expected To Vest Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingNumber	97000	shares
CY2015Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Vested And Expected To Vest Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingWeightedAverageExercisePrice	24.49
CY2015	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Exercises In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice	10.62
CY2015	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Forfeitures In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsForfeituresInPeriodWeightedAverageExercisePrice	23.89
CY2015	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Grants In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice	0
CY2015Q4	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Exercisable Intrinsic Value1 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1	2278000	USD
CY2015	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Exercisable Weighted Average Remaining Contractual Term1 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableWeightedAverageRemainingContractualTerm1	P3Y8M1D
CY2015	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Outstanding Weighted Average Remaining Contractual Term2 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2	P6Y4M28D
CY2015	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Vested And Expected To Vest Exercisable Weighted Average Remaining Contractual Term1 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedAndExpectedToVestExercisableWeightedAverageRemainingContractualTerm1	P8Y4M17D
CY2015	us-gaap	Sharebased Compensation Shares Authorized Under Stock Option Plans Exercise Price Range Outstanding Options Weighted Average Remaining Contractual Term2 SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeOutstandingOptionsWeightedAverageRemainingContractualTerm2	P2Y2M9D
CY2014Q4	us-gaap	Short Term Borrowings ShortTermBorrowings	180169000	USD
CY2015Q4	us-gaap	Short Term Borrowings ShortTermBorrowings	150000000	USD
CY2015	us-gaap	Stock Issued During Period Shares Stock Options Exercised StockIssuedDuringPeriodSharesStockOptionsExercised	182000	shares
CY2014	us-gaap	Stock Issued During Period Value New Issues StockIssuedDuringPeriodValueNewIssues	13746000	USD
CY2015	us-gaap	Stock Issued During Period Value New Issues StockIssuedDuringPeriodValueNewIssues	28288000	USD
CY2013	us-gaap	Stock Issued During Period Value Restricted Stock Award Net Of Forfeitures StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures	7699000	USD
CY2014	us-gaap	Stock Issued During Period Value Restricted Stock Award Net Of Forfeitures StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures	9141000	USD
CY2015	us-gaap	Stock Issued During Period Value Restricted Stock Award Net Of Forfeitures StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures	17014000	USD
CY2013	us-gaap	Stock Issued During Period Value Stock Options Exercised StockIssuedDuringPeriodValueStockOptionsExercised	4595000	USD
CY2014	us-gaap	Stock Issued During Period Value Stock Options Exercised StockIssuedDuringPeriodValueStockOptionsExercised	8294000	USD
CY2015	us-gaap	Stock Issued During Period Value Stock Options Exercised StockIssuedDuringPeriodValueStockOptionsExercised	1935000	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
CY2014	us-gaap	Stock Redeemed Or Called During Period Value StockRedeemedOrCalledDuringPeriodValue	70500000	USD
CY2015	us-gaap	Stock Redeemed Or Called During Period Value StockRedeemedOrCalledDuringPeriodValue	70500000	USD
CY2012Q4	us-gaap	Stockholders Equity StockholdersEquity	759421000	USD
CY2013Q4	us-gaap	Stockholders Equity StockholdersEquity	855498000	USD
CY2014Q4	us-gaap	Stockholders Equity StockholdersEquity	1000928000	USD
CY2015Q4	us-gaap	Stockholders Equity StockholdersEquity	1591502000	USD
CY2014Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest Adjusted Balance1 StockholdersEquityIncludingPortionAttributableToNoncontrollingInterestAdjustedBalance1	1000928000	USD
CY2015Q4	us-gaap	Subordinated Debt SubordinatedDebt	152000000	USD
CY2014Q4	us-gaap	Tier One Leverage Capital Required For Capital Adequacy To Average Assets TierOneLeverageCapitalRequiredForCapitalAdequacyToAverageAssets	0.040
CY2015Q4	us-gaap	Tier One Leverage Capital Required For Capital Adequacy To Average Assets TierOneLeverageCapitalRequiredForCapitalAdequacyToAverageAssets	0.040
CY2014Q4	us-gaap	Tier One Leverage Capital Required To Be Well Capitalized To Average Assets TierOneLeverageCapitalRequiredToBeWellCapitalizedToAverageAssets	0.050
CY2015Q4	us-gaap	Tier One Leverage Capital Required To Be Well Capitalized To Average Assets TierOneLeverageCapitalRequiredToBeWellCapitalizedToAverageAssets	0.050
CY2014Q4	us-gaap	Tier One Risk Based Capital Required For Capital Adequacy To Risk Weighted Assets TierOneRiskBasedCapitalRequiredForCapitalAdequacyToRiskWeightedAssets	0.040
CY2015Q4	us-gaap	Tier One Risk Based Capital Required For Capital Adequacy To Risk Weighted Assets TierOneRiskBasedCapitalRequiredForCapitalAdequacyToRiskWeightedAssets	0.060
CY2014Q4	us-gaap	Tier One Risk Based Capital Required To Be Well Capitalized To Risk Weighted Assets TierOneRiskBasedCapitalRequiredToBeWellCapitalizedToRiskWeightedAssets	0.060
CY2015Q4	us-gaap	Tier One Risk Based Capital Required To Be Well Capitalized To Risk Weighted Assets TierOneRiskBasedCapitalRequiredToBeWellCapitalizedToRiskWeightedAssets	0.080
CY2015Q4	us-gaap	Time Deposit Maturities Year Five TimeDepositMaturitiesYearFive	3235000	USD
CY2015Q4	us-gaap	Time Deposit Maturities Year Four TimeDepositMaturitiesYearFour	3552000	USD
CY2015Q4	us-gaap	Time Deposit Maturities Year One TimeDepositMaturitiesYearOne	1507050000	USD
CY2015Q4	us-gaap	Time Deposit Maturities Year Three TimeDepositMaturitiesYearThree	9633000	USD
CY2015Q4	us-gaap	Time Deposit Maturities Year Two TimeDepositMaturitiesYearTwo	88184000	USD
CY2015Q4	us-gaap	Time Deposits TimeDeposits	1611654000	USD
CY2014Q4	us-gaap	Trade And Loans Receivables Held For Sale Net Not Part Of Disposal Group TradeAndLoansReceivablesHeldForSaleNetNotPartOfDisposalGroup	0	USD
CY2015Q4	us-gaap	Trade And Loans Receivables Held For Sale Net Not Part Of Disposal Group TradeAndLoansReceivablesHeldForSaleNetNotPartOfDisposalGroup	23809000	USD
CY2014Q4	us-gaap	Trading Securities TradingSecurities	1858000	USD
CY2015Q4	us-gaap	Trading Securities TradingSecurities	1481000	USD
CY2013	us-gaap	Unrealized Gain Loss On Cash Flow Hedging Instruments UnrealizedGainLossOnCashFlowHedgingInstruments	-17000	USD
CY2014	us-gaap	Unrealized Gain Loss On Cash Flow Hedging Instruments UnrealizedGainLossOnCashFlowHedgingInstruments	0	USD
CY2015	us-gaap	Unrealized Gain Loss On Cash Flow Hedging Instruments UnrealizedGainLossOnCashFlowHedgingInstruments	0	USD
CY2015Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	1038000	USD
CY2015Q4	us-gaap	Unrecognized Tax Benefits Income Tax Penalties Accrued UnrecognizedTaxBenefitsIncomeTaxPenaltiesAccrued	0.1	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
CY2015Q4	us-gaap	Unrecognized Tax Benefits Interest On Income Taxes Accrued UnrecognizedTaxBenefitsInterestOnIncomeTaxesAccrued	0.1	USD
CY2014Q4	us-gaap	Unrecognized Tax Benefits That Would Impact Effective Tax Rate UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate	0	USD
CY2015Q4	us-gaap	Unrecognized Tax Benefits That Would Impact Effective Tax Rate UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate	700000	USD
CY2013	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	86541000	shares
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
CY2013	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	85682000	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
CY2013	wal	Accretion And Amortization Fair Market Value Adjustments Relating To Acquisitionsof Loans AccretionAndAmortizationFairMarketValueAdjustmentsRelatingToAcquisitionsofLoans	10917000	USD
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
CY2013	wal	Accretionand Amortization Fair Market Value Adjustments Relatingto Acquisitionsof Other Assetsand Liabilities AccretionandAmortizationFairMarketValueAdjustmentsRelatingtoAcquisitionsofOtherAssetsandLiabilities	-437000	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
CY2015Q4	wal	Additional Collateral Amount AdditionalCollateralAmount	77200000	USD
CY2013	wal	Amortizationof Low Income Housing Tax Credits AmortizationofLowIncomeHousingTaxCredits	5900000	USD
CY2014Q3	wal	Amortizationof Low Income Housing Tax Credits AmortizationofLowIncomeHousingTaxCredits	3000000	USD
CY2014	wal	Amortizationof Low Income Housing Tax Credits AmortizationofLowIncomeHousingTaxCredits	10600000	USD
CY2015	wal	Amortizationof Low Income Housing Tax Credits AmortizationofLowIncomeHousingTaxCredits	14400000	USD
CY2014Q4	wal	Borrowingsand Qualifying Debt BorrowingsandQualifyingDebt	430700000	USD
CY2015Q4	wal	Borrowingsand Qualifying Debt BorrowingsandQualifyingDebt	360328000	USD
CY2014Q4	wal	Brokered Deposits Regulatory BrokeredDepositsRegulatory	202400000	USD
CY2015Q4	wal	Brokered Deposits Regulatory BrokeredDepositsRegulatory	365600000	USD
CY2014Q4	wal	Business Combination Fair Market Value Adjustmenton Junior Subordinated Debenture Owedto Unconsolidated Subsidiary Trust BusinessCombinationFairMarketValueAdjustmentonJuniorSubordinatedDebentureOwedtoUnconsolidatedSubsidiaryTrust	0	USD
CY2015Q2	wal	Business Combination Fair Market Value Adjustmenton Junior Subordinated Debenture Owedto Unconsolidated Subsidiary Trust BusinessCombinationFairMarketValueAdjustmentonJuniorSubordinatedDebentureOwedtoUnconsolidatedSubsidiaryTrust	6200000	USD
CY2015Q4	wal	Business Combination Fair Market Value Adjustmenton Junior Subordinated Debenture Owedto Unconsolidated Subsidiary Trust BusinessCombinationFairMarketValueAdjustmentonJuniorSubordinatedDebentureOwedtoUnconsolidatedSubsidiaryTrust	-6085000	USD
CY2013	wal	Business Combination Noncash Assets Acquired At Fair Value BusinessCombinationNoncashAssetsAcquiredAtFairValue	410827000	USD
CY2014	wal	Business Combination Noncash Assets Acquired At Fair Value BusinessCombinationNoncashAssetsAcquiredAtFairValue	0	USD
CY2015	wal	Business Combination Noncash Assets Acquired At Fair Value BusinessCombinationNoncashAssetsAcquiredAtFairValue	1587186000	USD
CY2013	wal	Cardexpense Cardexpense	1805000	USD
CY2014	wal	Cardexpense Cardexpense	2417000	USD
CY2015	wal	Cardexpense Cardexpense	2764000	USD
CY2014Q4	wal	Cash Cash Equivalentsand Investment Securities CashCashEquivalentsandInvestmentSecurities	1712200000	USD
CY2015Q4	wal	Cash Cash Equivalentsand Investment Securities CashCashEquivalentsandInvestmentSecurities	2266900000	USD
CY2015Q2	wal	Cash Paymentfor Vested Stock Options CashPaymentforVestedStockOptions	6200000	USD
CY2014Q4	wal	Certificatesof Deposit Cdars CertificatesofDepositCDARS	700700000	USD
CY2015Q4	wal	Certificatesof Deposit Cdars CertificatesofDepositCDARS	517500000	USD
CY2013	wal	Change In Fair Value Of Assets And Liabilities Measured At Fair Value ChangeInFairValueOfAssetsAndLiabilitiesMeasuredAtFairValue	-6483000	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
CY2013	wal	Changein Unfunded Obligations Non Cash ChangeinUnfundedObligationsNonCash	-29755000	USD
CY2014	wal	Changein Unfunded Obligations Non Cash ChangeinUnfundedObligationsNonCash	-28522000	USD
CY2015	wal	Changein Unfunded Obligations Non Cash ChangeinUnfundedObligationsNonCash	-27325000	USD
CY2013Q4	wal	Collateral Netted Against Derivative Liabilities CollateralNettedAgainstDerivativeLiabilities	300000	USD
CY2014Q4	wal	Collateral Netted Against Derivative Liabilities CollateralNettedAgainstDerivativeLiabilities	57800000	USD
CY2015Q4	wal	Collateral Netted Against Derivative Liabilities CollateralNettedAgainstDerivativeLiabilities	61700000	USD
CY2015Q4	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
CY2014Q4	wal	Deferred Tax Assets Fair Market Value Adjustment Relatedto Acquired Loans DeferredTaxAssetsFairMarketValueAdjustmentRelatedtoAcquiredLoans	8250000	USD
CY2015Q4	wal	Deferred Tax Assets Fair Market Value Adjustment Relatedto Acquired Loans DeferredTaxAssetsFairMarketValueAdjustmentRelatedtoAcquiredLoans	13930000	USD
CY2014Q4	wal	Deferred Tax Assets Net Unrealized Built In Losses DeferredTaxAssetsNetUnrealizedBuiltInLosses	3657000	USD
CY2015Q4	wal	Deferred Tax Assets Net Unrealized Built In Losses DeferredTaxAssetsNetUnrealizedBuiltInLosses	3284000	USD
CY2014Q4	wal	Deferred Tax Assets Other Real Estate Owned Write Down DeferredTaxAssetsOtherRealEstateOwnedWriteDown	7343000	USD
CY2015Q4	wal	Deferred Tax Assets Other Real Estate Owned Write Down DeferredTaxAssetsOtherRealEstateOwnedWriteDown	4280000	USD
CY2014Q4	wal	Deferred Tax Assets Start Up Costsand Other Amortization DeferredTaxAssetsStartUpCostsandOtherAmortization	5113000	USD
CY2015Q4	wal	Deferred Tax Assets Start Up Costsand Other Amortization DeferredTaxAssetsStartUpCostsandOtherAmortization	4771000	USD
CY2014Q4	wal	Deferred Tax Liabilities Unrealized Gains On Available For Sale Securities DeferredTaxLiabilitiesUnrealizedGainsOnAvailableForSaleSecurities	9949000	USD
CY2015Q4	wal	Deferred Tax Liabilities Unrealized Gains On Available For Sale Securities DeferredTaxLiabilitiesUnrealizedGainsOnAvailableForSaleSecurities	6353000	USD
CY2014Q4	wal	Deferred Tax Liabilities Unrealized Gainson Debt Instruments Measuredat Fair Value DeferredTaxLiabilitiesUnrealizedGainsonDebtInstrumentsMeasuredatFairValue	0	USD
CY2015Q4	wal	Deferred Tax Liabilities Unrealized Gainson Debt Instruments Measuredat Fair Value DeferredTaxLiabilitiesUnrealizedGainsonDebtInstrumentsMeasuredatFairValue	7537000	USD
CY2014Q4	wal	Deferred Tax Liabilities Unrealized Gainson Financial Instruments Measuredat Fair Value DeferredTaxLiabilitiesUnrealizedGainsonFinancialInstrumentsMeasuredatFairValue	9798000	USD
CY2015Q4	wal	Deferred Tax Liabilities Unrealized Gainson Financial Instruments Measuredat Fair Value DeferredTaxLiabilitiesUnrealizedGainsonFinancialInstrumentsMeasuredatFairValue	1000000	USD
CY2015	wal	Defined Contribution Plan Age Of Participants DefinedContributionPlanAgeOfParticipants	P50Y
CY2015	wal	Defined Contribution Plan Initial Percentage Of Discretionary Deferred Compensation DefinedContributionPlanInitialPercentageOfDiscretionaryDeferredCompensation	0.06
CY2015	wal	Defined Contribution Plan Percentage Of Discretionary Deferred Compensation DefinedContributionPlanPercentageOfDiscretionaryDeferredCompensation	0.50
CY2014Q4	wal	Deposits Ics DepositsICS	481200000	USD
CY2015Q4	wal	Deposits Ics DepositsICS	714400000	USD
CY2013Q4	wal	Derivative Instruments Notional Amount Netting Adjustments DerivativeInstrumentsNotionalAmountNettingAdjustments	0	USD
CY2014Q4	wal	Derivative Instruments Notional Amount Netting Adjustments DerivativeInstrumentsNotionalAmountNettingAdjustments	0	USD
CY2015Q4	wal	Derivative Instruments Notional Amount Netting Adjustments DerivativeInstrumentsNotionalAmountNettingAdjustments	0	USD
CY2013Q4	wal	Derivative Netting Adjustments DerivativeNettingAdjustments	-384000	USD
CY2014Q4	wal	Derivative Netting Adjustments DerivativeNettingAdjustments	0	USD
CY2015Q4	wal	Derivative Netting Adjustments DerivativeNettingAdjustments	0	USD
CY2013	wal	Dilutive Effect Of Stock Options Restricted Stock And Equity Settled Awards DilutiveEffectOfStockOptionsRestrictedStockAndEquitySettledAwards	859000	shares
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
CY2014Q4	wal	Excess Funds Provided Used Segment Basis ExcessFundsProvidedUsedSegmentBasis	0	USD
CY2015Q4	wal	Excess Funds Provided Used Segment Basis ExcessFundsProvidedUsedSegmentBasis	0	USD
CY2014Q4	wal	Financing Receivable Unpaid Principal Balance FinancingReceivableUnpaidPrincipalBalance	8451849000	USD
CY2015Q4	wal	Financing Receivable Unpaid Principal Balance FinancingReceivableUnpaidPrincipalBalance	11379517000	USD
CY2014Q4	wal	Financing Receivable Unpaid Principal Balance Collectively Evaluated For Impairment FinancingReceivableUnpaidPrincipalBalanceCollectivelyEvaluatedForImpairment	8135041000	USD
CY2015Q4	wal	Financing Receivable Unpaid Principal Balance Collectively Evaluated For Impairment FinancingReceivableUnpaidPrincipalBalanceCollectivelyEvaluatedForImpairment	10901140000	USD
CY2013	wal	Financing Receivable Waived Fees And Other Expenses FinancingReceivableWaivedFeesAndOtherExpenses	81000	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
CY2013	wal	Financing Receivables Impaired Troubled Debt Restructuring Write Down Due To Interest Concessions FinancingReceivablesImpairedTroubledDebtRestructuringWriteDownDueToInterestConcessions	1028000	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
CY2013	wal	Financing Receivables Impaired Troubled Debt Restructuring Write Down Due To Principal Forgiveness FinancingReceivablesImpairedTroubledDebtRestructuringWriteDownDueToPrincipalForgiveness	1297000	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
CY2012Q4	wal	Foreclosed Assets Gross ForeclosedAssetsGross	113474000	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
CY2014Q4	wal	Furniture Fixtures And Equipment Gross FurnitureFixturesAndEquipmentGross	51320000	USD
CY2015Q4	wal	Furniture Fixtures And Equipment Gross FurnitureFixturesAndEquipmentGross	40025000	USD
CY2013	wal	Gain Loss On Foreclosed Assets GainLossOnForeclosedAssets	5924000	USD
CY2014	wal	Gain Loss On Foreclosed Assets GainLossOnForeclosedAssets	2866000	USD
CY2015	wal	Gain Loss On Foreclosed Assets GainLossOnForeclosedAssets	2628000	USD
CY2013	wal	Gains Losses On Transfers To Other Real Estate And Foreclosed Assets GainsLossesOnTransfersToOtherRealEstateAndForeclosedAssets	900000	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
CY2014Q4	wal	Irc Section382 Limitation Valuation Allowance IRCSection382LimitationValuationAllowance	500000	USD
CY2015Q4	wal	Irc Section382 Limitation Valuation Allowance IRCSection382LimitationValuationAllowance	0	USD
CY2014Q4	wal	Impaired Financing Receivable Unpaid Principal Balance Individually Evaluated For Impairment ImpairedFinancingReceivableUnpaidPrincipalBalanceIndividuallyEvaluatedForImpairment	179011000	USD
CY2015Q4	wal	Impaired Financing Receivable Unpaid Principal Balance Individually Evaluated For Impairment ImpairedFinancingReceivableUnpaidPrincipalBalanceIndividuallyEvaluatedForImpairment	358613000	USD
CY2014Q4	wal	Impaired Financing Receivable With No Related Allowance ImpairedFinancingReceivableWithNoRelatedAllowance	0	USD
CY2015Q4	wal	Impaired Financing Receivable With No Related Allowance ImpairedFinancingReceivableWithNoRelatedAllowance	0	USD
CY2013	wal	Income Tax Reconciliation Bargain Purchase Gain On Acquisition IncomeTaxReconciliationBargainPurchaseGainOnAcquisition	-3775000	USD
CY2014	wal	Income Tax Reconciliation Bargain Purchase Gain On Acquisition IncomeTaxReconciliationBargainPurchaseGainOnAcquisition	0	USD
CY2015	wal	Income Tax Reconciliation Bargain Purchase Gain On Acquisition IncomeTaxReconciliationBargainPurchaseGainOnAcquisition	0	USD
CY2013	wal	Income Tax Reconciliation Low Income Housing And Other Tax Credits IncomeTaxReconciliationLowIncomeHousingAndOtherTaxCredits	-2105000	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
CY2013	wal	Income Tax Reconciliation Tax Benefit Relatedto Acquisition IncomeTaxReconciliationTaxBenefitRelatedtoAcquisition	-3738000	USD
CY2014	wal	Income Tax Reconciliation Tax Benefit Relatedto Acquisition IncomeTaxReconciliationTaxBenefitRelatedtoAcquisition	0	USD
CY2015	wal	Income Tax Reconciliation Tax Benefit Relatedto Acquisition IncomeTaxReconciliationTaxBenefitRelatedtoAcquisition	0	USD
CY2013	wal	Income Tax Reconciliation Tax On Earnings Other Than Statutory Tax Rate IncomeTaxReconciliationTaxOnEarningsOtherThanStatutoryTaxRate	-3165000	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
CY2013	wal	Increase Decrease In Bank Owned Life Insurance IncreaseDecreaseInBankOwnedLifeInsurance	-1683000	USD
CY2014	wal	Increase Decrease In Bank Owned Life Insurance IncreaseDecreaseInBankOwnedLifeInsurance	-1578000	USD
CY2015	wal	Increase Decrease In Bank Owned Life Insurance IncreaseDecreaseInBankOwnedLifeInsurance	-1365000	USD
CY2014Q4	wal	Indefinite Lived Trade Name Gross IndefiniteLivedTradeNameGross	0	USD
CY2015Q4	wal	Indefinite Lived Trade Name Gross IndefiniteLivedTradeNameGross	350000	USD
CY2014Q4	wal	Interest Bearing Deposit Demand InterestBearingDepositDemand	854935000	USD
CY2015Q4	wal	Interest Bearing Deposit Demand InterestBearingDepositDemand	1028073000	USD
CY2014Q4	wal	Interest Rateand Credit Markson Acquired Loans InterestRateandCreditMarksonAcquiredLoans	27100000	USD
CY2015Q4	wal	Interest Rateand Credit Markson Acquired Loans InterestRateandCreditMarksonAcquiredLoans	40500000	USD
CY2014Q4	wal	Investmentin Low Income Housing Tax Credit InvestmentinLowIncomeHousingTaxCredit	126600000	USD
CY2015Q4	wal	Investmentin Low Income Housing Tax Credit InvestmentinLowIncomeHousingTaxCredit	152700000	USD
CY2013	wal	Legal Professional And Director Fees LegalProfessionalAndDirectorFees	13633000	USD
CY2014	wal	Legal Professional And Director Fees LegalProfessionalAndDirectorFees	14278000	USD
CY2015	wal	Legal Professional And Director Fees LegalProfessionalAndDirectorFees	18548000	USD
CY2013	wal	Lendingrelatedfees Lendingrelatedfees	0	USD
CY2014	wal	Lendingrelatedfees Lendingrelatedfees	71000	USD
CY2015	wal	Lendingrelatedfees Lendingrelatedfees	1948000	USD
CY2013	wal	Loan And Repossessed Asset Expense LoanAndRepossessedAssetExpense	4198000	USD
CY2014	wal	Loan And Repossessed Asset Expense LoanAndRepossessedAssetExpense	4423000	USD
CY2015	wal	Loan And Repossessed Asset Expense LoanAndRepossessedAssetExpense	4377000	USD
CY2014Q4	wal	Loanand Leases Receivable Commitment Outstanding Related Parties LoanandLeasesReceivableCommitmentOutstandingRelatedParties	151800000	USD
CY2015Q4	wal	Loanand Leases Receivable Commitment Outstanding Related Parties LoanandLeasesReceivableCommitmentOutstandingRelatedParties	164500000	USD
CY2014	wal	Loans And Loans Receivable Purchases LoansAndLoansReceivablePurchases	166400000	USD
CY2015	wal	Loans And Loans Receivable Purchases LoansAndLoansReceivablePurchases	137200000	USD
CY2014	wal	Loansand Leases Receivable Advances Related Parties LoansandLeasesReceivableAdvancesRelatedParties	23559000	USD
CY2015	wal	Loansand Leases Receivable Advances Related Parties LoansandLeasesReceivableAdvancesRelatedParties	18614000	USD
CY2015Q4	wal	Loansand Leases Receivable Including Heldfor Sale Net LoansandLeasesReceivableIncludingHeldforSaleNet	11017600000	USD
CY2015Q4	wal	Loansand Leases Receivable Including Heldfor Sale Netof Deferred Income LoansandLeasesReceivableIncludingHeldforSaleNetofDeferredIncome	11136663000	USD
CY2013	wal	Mark To Market Losses Gains Net MarkToMarketLossesGainsNet	-6483000	USD
CY2014	wal	Mark To Market Losses Gains Net MarkToMarketLossesGainsNet	1212000	USD
CY2015	wal	Mark To Market Losses Gains Net MarkToMarketLossesGainsNet	47000	USD
CY2015	wal	Maximum Loan To Value Ratio MaximumLoanToValueRatio	0.75
CY2015	wal	Maximum Period Of Internal Loss Allowance Calculation Modal MaximumPeriodOfInternalLossAllowanceCalculationModal	P10Y
CY2013	wal	Merger Restructure Expense MergerRestructureExpense	5752000	USD
CY2014	wal	Merger Restructure Expense MergerRestructureExpense	198000	USD
CY2015	wal	Merger Restructure Expense MergerRestructureExpense	8836000	USD
CY2013	wal	Net Loss Gain On Sales Valuations Of Repossessed Assets And Bank Premises Net NetLossGainOnSalesValuationsOfRepossessedAssetsAndBankPremisesNet	-2387000	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
CY2014Q4	wal	Non Performing Assets NonPerformingAssets	214661000	USD
CY2015Q4	wal	Non Performing Assets NonPerformingAssets	166058000	USD
CY2014Q4	wal	Non Performing Loans NonPerformingLoans	157511000	USD
CY2015Q4	wal	Non Performing Loans NonPerformingLoans	122116000	USD
CY2014Q4	wal	Number Of Securities In Unrealized Position NumberOfSecuritiesInUnrealizedPosition	109	positions
CY2015Q4	wal	Number Of Securities In Unrealized Position NumberOfSecuritiesInUnrealizedPosition	146	positions
CY2015	wal	Number Of Unconsolidated Subsidiaries NumberOfUnconsolidatedSubsidiaries	8	Subsidiary
CY2015	wal	Number Of Wholly Owned Subsidiaries NumberOfWhollyOwnedSubsidiaries	10	Subsidiary
CY2015	wal	Number Of Wholly Owned Subsidiaries Non Bank Subsidiaries NumberOfWhollyOwnedSubsidiariesNonBankSubsidiaries	1	Subsidiary
CY2013	wal	Other Assets Acquiredthrough Foreclosure Additions Dueto Business Acquisition OtherAssetsAcquiredthroughForeclosureAdditionsDuetoBusinessAcquisition	5622000	USD
CY2015	wal	Other Assets Acquiredthrough Foreclosure Additions Dueto Business Acquisition OtherAssetsAcquiredthroughForeclosureAdditionsDuetoBusinessAcquisition	1407000	USD
CY2014Q4	wal	Other Assets Segment OtherAssetsSegment	517200000	USD
CY2015Q4	wal	Other Assets Segment OtherAssetsSegment	641300000	USD
CY2013	wal	Other Comprehensive Income Loss Unrealized Holding Gain Losson Subordinated Debt OtherComprehensiveIncomeLossUnrealizedHoldingGainLossonSubordinatedDebt	0	USD
CY2014	wal	Other Comprehensive Income Loss Unrealized Holding Gain Losson Subordinated Debt OtherComprehensiveIncomeLossUnrealizedHoldingGainLossonSubordinatedDebt	0	USD
CY2015	wal	Other Comprehensive Income Loss Unrealized Holding Gain Losson Subordinated Debt OtherComprehensiveIncomeLossUnrealizedHoldingGainLossonSubordinatedDebt	-4276000	USD
CY2014Q4	wal	Other Liabilities Segment OtherLiabilitiesSegment	237900000	USD
CY2015Q4	wal	Other Liabilities Segment OtherLiabilitiesSegment	292700000	USD
CY2013Q4	wal	Over Collateralization On Derivatives To Banks After Application Of Master Netting Agreements And Collateral OverCollateralizationOnDerivativesToBanksAfterApplicationOfMasterNettingAgreementsAndCollateral	12400000	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
CY2014Q4	wal	Percentage Of Commercial Real Estate Loans Occupied By Owners PercentageOfCommercialRealEstateLoansOccupiedByOwners	0.46
CY2015Q4	wal	Percentage Of Commercial Real Estate Loans Occupied By Owners PercentageOfCommercialRealEstateLoansOccupiedByOwners	0.48
CY2014Q4	wal	Percentage Of Mutual Fund In Investment In Fixed Income Investment Grade PercentageOfMutualFundInInvestmentInFixedIncomeInvestmentGrade	0.80
CY2013	wal	Proceeds From Sale Of Other Real Estate Owned Gross ProceedsFromSaleOfOtherRealEstateOwnedGross	61510000	USD
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
CY2013	wal	Proceeds From Sale Of Other Real Estate Owned Net ProceedsFromSaleOfOtherRealEstateOwnedNet	43242000	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
CY2013	wal	Proceeds From Sale Of Other Real Estate Owned Valuation Allowance ProceedsFromSaleOfOtherRealEstateOwnedValuationAllowance	18268000	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
CY2015	wal	Proceedsfrom Issuanceof Common Stock Gross ProceedsfromIssuanceofCommonStockGross	29000000	USD
CY2013	wal	Proceedsfrom Sale Paymentsto Purchase Investment In Money Market ProceedsfromSalePaymentstoPurchaseInvestmentInMoneyMarket	-1968000	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
CY2013	wal	Purchase Of Investment Tax Credits PurchaseOfInvestmentTaxCredits	40355000	USD
CY2014	wal	Purchase Of Investment Tax Credits PurchaseOfInvestmentTaxCredits	32484000	USD
CY2015	wal	Purchase Of Investment Tax Credits PurchaseOfInvestmentTaxCredits	29437000	USD
CY2014Q4	wal	Qualifying Debt QualifyingDebt	40437000	USD
CY2015Q4	wal	Qualifying Debt QualifyingDebt	210328000	USD
CY2013	wal	Redemption Of Preferred Stock RedemptionOfPreferredStock	0	USD
CY2014	wal	Redemption Of Preferred Stock RedemptionOfPreferredStock	70500000	USD
CY2015	wal	Redemption Of Preferred Stock RedemptionOfPreferredStock	70500000	USD
CY2014Q4	wal	Time Deposits250000ormore TimeDeposits250000ormore	1339238000	USD
CY2015Q4	wal	Time Deposits250000ormore TimeDeposits250000ormore	1569525000	USD
CY2014Q4	wal	Time Deposits Lessthan250000 TimeDepositsLessthan250000	579123000	USD
CY2015Q4	wal	Time Deposits Lessthan250000 TimeDepositsLessthan250000	42129000	USD
CY2014Q4	wal	Trade Name Impaired Accumulated Impairment Loss TradeNameImpairedAccumulatedImpairmentLoss	0	USD
CY2015Q4	wal	Trade Name Impaired Accumulated Impairment Loss TradeNameImpairedAccumulatedImpairmentLoss	0	USD
CY2014Q4	wal	Troubled Debt Restructured Loans TroubledDebtRestructuredLoans	84720000	USD
CY2015Q4	wal	Troubled Debt Restructured Loans TroubledDebtRestructuredLoans	70707000	USD
CY2013	wal	Unfunded Commitments To Purchase Investment Tax Credits UnfundedCommitmentsToPurchaseInvestmentTaxCredits	50000000	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
CY2014Q4	wal	Unfunded Low Income Housing Tax Credit Obligations UnfundedLowIncomeHousingTaxCreditObligations	51400000	USD
CY2015Q4	wal	Unfunded Low Income Housing Tax Credit Obligations UnfundedLowIncomeHousingTaxCreditObligations	61200000	USD
CY2013	wal	Valuation Adjustments Of Other Repossessed Assets Net ValuationAdjustmentsOfOtherRepossessedAssetsNet	-3743000	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
CY2013	wal	Valuation Adjustments Of Other Repossessed Assets Valuation Allowance ValuationAdjustmentsOfOtherRepossessedAssetsValuationAllowance	3743000	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
CY2015	wal	Weighted Average Selling Price Per Share WeightedAverageSellingPricePerShare	38.13
CY2015	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, 2015</font><font style="font-family:inherit;font-size:10pt;">, </font><font style="font-family:inherit;font-size:10pt;">2014</font><font style="font-family:inherit;font-size:10pt;">, and </font><font style="font-family:inherit;font-size:10pt;">2013</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>
CY2015	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. Actual results could differ from those estimates. 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 other assets and liabilities carried at fair value; and accounting for income taxes. Although management believes these estimates to be reasonably accurate, actual amounts may differ. In the opinion of management, all adjustments considered necessary have been reflected in the Consolidated Financial Statements.</font></div></div>

Files In Submission

Name	View Source	Status
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0001212545-16-000325-index.html	Edgar Link	pending
0001212545-16-000325.txt	Edgar Link	pending
0001212545-16-000325-xbrl.zip	Edgar Link	pending
bonusplanpicture.jpg	Edgar Link	pending
ex1015bonusplan2016.htm	Edgar Link	pending
ex1020amendmentno1.htm	Edgar Link	pending
ex211listofsubsidiaries123.htm	Edgar Link	pending
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wal-20151231.xml	Edgar Link	completed
wal-20151231.xsd	Edgar Link	pending
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wal-20151231_lab.xml	Edgar Link	unprocessable
wal-20151231_pre.xml	Edgar Link	unprocessable
wal1231201510-k.htm	Edgar Link	pending
walex31110k12312015.htm	Edgar Link	pending
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walex3210k12312015.htm	Edgar Link	pending

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$WAL
WESTERN ALLIANCE BANCORPORATION Stock $wal

2015 Q4 Form 10-K Financial Statement

#000121254516000325 Filed on February 16, 2016

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$WAL WESTERN ALLIANCE BANCORPORATION Stock $wal

2015 Q4 Form 10-K Financial Statement

#000121254516000325 Filed on February 16, 2016

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$WAL
WESTERN ALLIANCE BANCORPORATION Stock $wal