$CATY
CATHAY GENERAL BANCORP Stock $caty

$caty Overview Financials Valuation SEC Filings Company Website

2016 Q4 Form 10-K Financial Statement

#000143774918003646 Filed on March 01, 2018

Income Statement

Concept	2016 Q4	2016 Q3	2016 Q2
Revenue		$124.2M	$121.9M
YoY Change		6.24%	8.47%
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	$1.800M	$1.800M	$2.000M
YoY Change	-5.26%	-250.0%	-61.54%
% of Gross Profit
Operating Expenses
YoY Change
Operating Profit
YoY Change
Interest Expense	$20.77M	$20.33M	$20.13M
YoY Change	3.3%	5.77%	14.14%
% of Operating Profit
Other Income/Expense, Net
YoY Change
Pretax Income	$64.36M	$61.90M	$47.10M
YoY Change	10.52%	22.37%	-14.26%
Income Tax	$16.35M	$15.81M	$12.27M
% Of Pretax Income	25.4%	25.54%	26.06%
Net Earnings	$48.02M	$46.09M	$34.83M
YoY Change	15.85%	19.77%	-22.94%
Net Earnings / Revenue		37.12%	28.57%
Basic Earnings Per Share	$0.61	$0.58	$0.44
Diluted Earnings Per Share	$0.60	$0.58	$0.44
COMMON SHARES
Basic Shares Outstanding	78.89M	78.87M	78.85M
Diluted Shares Outstanding		79.70M	79.62M

Balance Sheet

Concept	2016 Q4	2016 Q3	2016 Q2
SHORT-TERM ASSETS
Cash & Short-Term Investments
YoY Change
Cash & Equivalents	$1.185B	$203.9M	$229.4M
Short-Term Investments
Other Short-Term Assets
YoY Change
Inventory
Prepaid Expenses
Receivables
Other Receivables
Total Short-Term Assets
YoY Change
LONG-TERM ASSETS
Property, Plant & Equipment	$105.6M	$106.9M	$107.2M
YoY Change	-3.05%	-2.83%	9.42%
Goodwill	$372.2M	$372.2M	$372.2M
YoY Change	0.0%
Intangibles	$2.949M	$3.158M	$3.310M
YoY Change	-19.8%
Long-Term Investments
YoY Change
Other Assets
YoY Change
Total Long-Term Assets
YoY Change
TOTAL ASSETS
Total Short-Term Assets
Total Long-Term Assets
Total Assets	$14.52B	$14.10B	$13.49B
YoY Change	9.56%	10.58%	13.22%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable
YoY Change
Accrued Expenses
YoY Change
Deferred Revenue
YoY Change
Short-Term Debt	$50.00M	$250.0M	$250.0M
YoY Change	0.0%
Long-Term Debt Due
YoY Change
Total Short-Term Liabilities	$50.00M	$250.0M	$250.0M
YoY Change	0.0%
LONG-TERM LIABILITIES
Long-Term Debt	$437.0M	$237.0M	$287.0M
YoY Change	-10.45%	-55.95%	-46.75%
Other Long-Term Liabilities	$169.0M	$166.0M	$145.0M
YoY Change	17.36%	26.72%	7.41%
Total Long-Term Liabilities	$606.0M	$403.0M	$432.0M
YoY Change	-4.11%	-39.76%	-35.91%
TOTAL LIABILITIES
Total Short-Term Liabilities	$50.00M	$250.0M	$250.0M
Total Long-Term Liabilities	$606.0M	$403.0M	$432.0M
Total Liabilities	$12.69B	$12.31B	$11.73B
YoY Change	10.31%	11.68%	14.49%
SHAREHOLDERS EQUITY
Retained Earnings	$1.175B	$1.144B	$1.112B
YoY Change	10.93%
Common Stock	$878.0K	$871.0K	$871.0K
YoY Change	0.92%
Preferred Stock
YoY Change
Treasury Stock (at cost)	$239.6M	$239.6M	$239.6M
YoY Change	29.4%
Treasury Stock Shares	$8.211M	$8.211M	$8.211M
Shareholders Equity	$1.829B	$1.790B	$1.760B
YoY Change
Total Liabilities & Shareholders Equity	$14.52B	$14.10B	$13.49B
YoY Change	9.56%	10.58%	13.22%

Cashflow Statement

Concept	2016 Q4	2016 Q3	2016 Q2
OPERATING ACTIVITIES
Net Income	$48.02M	$46.09M	$34.83M
YoY Change	15.85%	19.77%	-22.94%
Depreciation, Depletion And Amortization	$1.800M	$1.800M	$2.000M
YoY Change	-5.26%	-250.0%	-61.54%
Cash From Operating Activities	$63.80M	$79.10M	$50.40M
YoY Change	21.29%	109.81%	64.71%
INVESTING ACTIVITIES
Capital Expenditures	-$300.0K	-$1.300M	-$800.0K
YoY Change	-66.67%	8.33%	0.0%
Acquisitions
YoY Change
Other Investing Activities	-$427.0M	-$652.3M	-$226.2M
YoY Change	-17.55%	123.77%	-1739.13%
Cash From Investing Activities	-$427.3M	-$653.7M	-$227.0M
YoY Change	-17.62%	123.26%	-1846.15%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net
YoY Change
Debt Paid & Issued, Net
YoY Change
Cash From Financing Activities	377.6M	549.1M	213.4M
YoY Change	-16.07%	93.01%	-462.93%
NET CHANGE
Cash From Operating Activities	63.80M	79.10M	50.40M
Cash From Investing Activities	-427.3M	-653.7M	-227.0M
Cash From Financing Activities	377.6M	549.1M	213.4M
Net Change In Cash	14.10M	-25.50M	36.80M
YoY Change	-187.04%	-186.73%	-342.11%
FREE CASH FLOW
Cash From Operating Activities	$63.80M	$79.10M	$50.40M
Capital Expenditures	-$300.0K	-$1.300M	-$800.0K
Free Cash Flow	$64.10M	$80.40M	$51.20M
YoY Change	19.81%	106.68%	63.06%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value
CY2017	caty	Accretion Amortization Of Investments AccretionAmortizationOfInvestments	4572000
CY2016	caty	Accretion Amortization Of Investments AccretionAmortizationOfInvestments	28897000
CY2015	caty	Accretion Amortization Of Investments AccretionAmortizationOfInvestments	25058000
CY2004Q4	caty	Accrued Interest On Deferred Bonus AccruedInterestOnDeferredBonus	0.07
CY2014Q4	caty	Accrued Interest On Deferred Bonus AccruedInterestOnDeferredBonus	0.0506
CY2014Q1	caty	Accrued Interest On Deferred Bonus AccruedInterestOnDeferredBonus	0.0502
CY2017	caty	Affordable Housing And Other Tax Credits Recognized AffordableHousingAndOtherTaxCreditsRecognized	17727000
CY2016	caty	Affordable Housing And Other Tax Credits Recognized AffordableHousingAndOtherTaxCreditsRecognized	13422000
CY2015	caty	Affordable Housing And Other Tax Credits Recognized AffordableHousingAndOtherTaxCreditsRecognized	10100000
CY2017Q4	caty	Affordable Housing Investments AffordableHousingInvestments	260112000
CY2016Q4	caty	Affordable Housing Investments AffordableHousingInvestments	236787000
CY2017Q4	caty	Affordable Housing Investments And Alternative Energy Partnerships Net AffordableHousingInvestmentsAndAlternativeEnergyPartnershipsNet	272871000
CY2016Q4	caty	Affordable Housing Investments And Alternative Energy Partnerships Net AffordableHousingInvestmentsAndAlternativeEnergyPartnershipsNet	251077000
CY2017Q4	caty	Affordable Housing Investments Scheduled Funding For Unfunded Commitments In Next12 Months AffordableHousingInvestmentsScheduledFundingForUnfundedCommitmentsInNext12Months	54817000
CY2017Q4	caty	Affordable Housing Investments Scheduled Funding For Unfunded Commitments In Year Five AffordableHousingInvestmentsScheduledFundingForUnfundedCommitmentsInYearFive	728000
CY2017Q4	caty	Affordable Housing Investments Scheduled Funding For Unfunded Commitments In Year Four AffordableHousingInvestmentsScheduledFundingForUnfundedCommitmentsInYearFour	11238000
CY2017Q4	caty	Affordable Housing Investments Scheduled Funding For Unfunded Commitments In Year Three AffordableHousingInvestmentsScheduledFundingForUnfundedCommitmentsInYearThree	16528000
CY2017Q4	caty	Affordable Housing Investments Scheduled Funding For Unfunded Commitments In Year Two AffordableHousingInvestmentsScheduledFundingForUnfundedCommitmentsInYearTwo	37921000
CY2017Q4	caty	Affordable Housing Investments Scheduled Funding For Unfunded Commitments Thereafter AffordableHousingInvestmentsScheduledFundingForUnfundedCommitmentsThereafter	3425000
CY2017Q4	caty	Alternative Energy Tax Credit Partnership Investments Net AlternativeEnergyTaxCreditPartnershipInvestmentsNet	12759000
CY2016Q4	caty	Alternative Energy Tax Credit Partnership Investments Net AlternativeEnergyTaxCreditPartnershipInvestmentsNet	14290000
CY2017	caty	Alternative Energy Tax Credit Usage AlternativeEnergyTaxCreditUsage	3301000
CY2016	caty	Alternative Energy Tax Credit Usage AlternativeEnergyTaxCreditUsage	24472000
CY2015	caty	Alternative Energy Tax Credit Usage AlternativeEnergyTaxCreditUsage	21000000
CY2004Q4	caty	Amount Of Deferred Bonus Accrued In Other Liabilities AmountOfDeferredBonusAccruedInOtherLiabilities	610000
CY2014Q1	caty	Amount Of Deferred Bonus Accrued In Other Liabilities AmountOfDeferredBonusAccruedInOtherLiabilities	300000
CY2017Q4	caty	Average Assets Total AverageAssetsTotal	15183720000
CY2016Q4	caty	Average Assets Total AverageAssetsTotal	13615348000
CY2017	caty	Average Excess Balances Maintained With Federal Reserve Bank AverageExcessBalancesMaintainedWithFederalReserveBank	359500000
CY2016	caty	Average Excess Balances Maintained With Federal Reserve Bank AverageExcessBalancesMaintainedWithFederalReserveBank	338500000
CY2017	caty	Average Reserve Balances Required To Be Maintained With Federal Bank AverageReserveBalancesRequiredToBeMaintainedWithFederalBank	7500000
CY2016	caty	Average Reserve Balances Required To Be Maintained With Federal Bank AverageReserveBalancesRequiredToBeMaintainedWithFederalBank	1900000
CY2015	caty	Benefit Of Tax Deductions On Grant Date Fair Value BenefitOfTaxDeductionsOnGrantDateFairValue	6500000
CY2015	caty	Benefit Shortfall Of Tax Deductions From Sharebased Compensation BenefitShortfallOfTaxDeductionsFromSharebasedCompensation	-5400000
CY2017Q4	caty	Bill Of Lading Guarantees Fair Value BillOfLadingGuaranteesFairValue	0
CY2016Q4	caty	Bill Of Lading Guarantees Fair Value BillOfLadingGuaranteesFairValue	0
CY2017Q4	caty	Bill Of Lading Guarantees Notional Amount BillOfLadingGuaranteesNotionalAmount	24000
CY2016Q4	caty	Bill Of Lading Guarantees Notional Amount BillOfLadingGuaranteesNotionalAmount	75000
CY2017	caty	Business Combination Acquisition And Integration Costs BusinessCombinationAcquisitionAndIntegrationCosts	4121000
CY2016	caty	Business Combination Acquisition And Integration Costs BusinessCombinationAcquisitionAndIntegrationCosts
CY2015	caty	Business Combination Acquisition And Integration Costs BusinessCombinationAcquisitionAndIntegrationCosts
CY2017	caty	Business Combination Stock Issued Value BusinessCombinationStockIssuedValue	34862000
CY2016	caty	Business Combination Stock Issued Value BusinessCombinationStockIssuedValue
CY2015	caty	Business Combination Stock Issued Value BusinessCombinationStockIssuedValue	82857000
CY2017Q4	caty	Commitments To Extend Credit Fair Value CommitmentsToExtendCreditFairValue	-7224000
CY2016Q4	caty	Commitments To Extend Credit Fair Value CommitmentsToExtendCreditFairValue	-6025000
CY2017Q4	caty	Commitments To Extend Notional Amount CommitmentsToExtendNotionalAmount	2366368000
CY2016Q4	caty	Commitments To Extend Notional Amount CommitmentsToExtendNotionalAmount	2062241000
CY2017Q4	caty	Commitments To Fund Adjustable Rate Loans CommitmentsToFundAdjustableRateLoans	2300000000
CY2017Q4	caty	Commitments To Fund Fixed Rate Loans CommitmentsToFundFixedRateLoans	99100000
CY2017Q4	caty	Common Equity Tier One Risk Based Capital Required For Capital Adequacy CommonEquityTierOneRiskBasedCapitalRequiredForCapitalAdequacy	580552000
CY2016Q4	caty	Common Equity Tier One Risk Based Capital Required For Capital Adequacy CommonEquityTierOneRiskBasedCapitalRequiredForCapitalAdequacy	511590000
CY2017Q4	caty	Common Equity Tier One Risk Based Capital Required For Capital Adequacy To Risk Weighted Assets CommonEquityTierOneRiskBasedCapitalRequiredForCapitalAdequacyToRiskWeightedAssets	0.045
CY2016Q4	caty	Common Equity Tier One Risk Based Capital Required For Capital Adequacy To Risk Weighted Assets CommonEquityTierOneRiskBasedCapitalRequiredForCapitalAdequacyToRiskWeightedAssets	0.045
CY2017Q4	caty	Common Equity Tier One Risk Based Capital Required To Be Well Capitalized To Risk Weighted Assets CommonEquityTierOneRiskBasedCapitalRequiredToBeWellCapitalizedToRiskWeightedAssets	0.065
CY2017Q4	caty	Common Equtiy Tier1 Capital CommonEqutiyTier1Capital	1572025000
CY2016Q4	caty	Common Equtiy Tier1 Capital CommonEqutiyTier1Capital	1459351000
CY2017Q4	caty	Common Tier One Risk Based Capital To Risk Weighted Assets CommonTierOneRiskBasedCapitalToRiskWeightedAssets	0.1219
CY2016Q4	caty	Common Tier One Risk Based Capital To Risk Weighted Assets CommonTierOneRiskBasedCapitalToRiskWeightedAssets	0.1284
CY2017Q4	caty	Deferred Tax Assets Depreciation And Amortization DeferredTaxAssetsDepreciationAndAmortization	1564000
CY2016Q4	caty	Deferred Tax Assets Depreciation And Amortization DeferredTaxAssetsDepreciationAndAmortization	8334000
CY2017Q4	caty	Deferred Tax Assets Nonaccrual Interest DeferredTaxAssetsNonaccrualInterest	2100000
CY2016Q4	caty	Deferred Tax Assets Nonaccrual Interest DeferredTaxAssetsNonaccrualInterest	4246000
CY2017Q4	caty	Deferred Tax Assets Unrealized Loss On Interest Rate Swaps DeferredTaxAssetsUnrealizedLossOnInterestRateSwaps	1158000
CY2016Q4	caty	Deferred Tax Assets Unrealized Loss On Interest Rate Swaps DeferredTaxAssetsUnrealizedLossOnInterestRateSwaps	1763000
CY2017Q4	caty	Deferred Tax Liabilities Basis Difference In Acquired Assets DeferredTaxLiabilitiesBasisDifferenceInAcquiredAssets
CY2016Q4	caty	Deferred Tax Liabilities Basis Difference In Acquired Assets DeferredTaxLiabilitiesBasisDifferenceInAcquiredAssets	4841000
CY2017Q4	caty	Deferred Tax Liabilities Deferred Expense Loan Costs DeferredTaxLiabilitiesDeferredExpenseLoanCosts	7655000
CY2017	caty	Effective Income Tax Rate Reconciliation Non Taxable Bargain Purchase Gain Amount EffectiveIncomeTaxRateReconciliationNonTaxableBargainPurchaseGainAmount	1970000
CY2016	caty	Effective Income Tax Rate Reconciliation Non Taxable Bargain Purchase Gain Amount EffectiveIncomeTaxRateReconciliationNonTaxableBargainPurchaseGainAmount
	caty	Effective Income Tax Rate Reconciliation Non Taxable Bargain Purchase Gain Amount EffectiveIncomeTaxRateReconciliationNonTaxableBargainPurchaseGainAmount
CY2017	caty	Effective Income Tax Rate Reconciliation Non Taxable Bargain Purchase Gain Percentage EffectiveIncomeTaxRateReconciliationNonTaxableBargainPurchaseGainPercentage	0.007
CY2017	caty	Effective Income Tax Rate Reconciliation Deferred Taxes Writedown Percentage EffectiveIncomeTaxRateReconciliationDeferredTaxesWritedownPercentage	0.078
CY2017	caty	Foreclosed Real Estate Expense Income ForeclosedRealEstateExpenseIncome	-1649000
CY2016	caty	Foreclosed Real Estate Expense Income ForeclosedRealEstateExpenseIncome	856000
CY2015	caty	Foreclosed Real Estate Expense Income ForeclosedRealEstateExpenseIncome	-800000
CY2017Q4	caty	Foreign Currency Contract Asset Fair Value Loss Disclosure ForeignCurrencyContractAssetFairValueLossDisclosure	453000
CY2016Q4	caty	Foreign Currency Contract Asset Fair Value Loss Disclosure ForeignCurrencyContractAssetFairValueLossDisclosure	3132000
CY2017Q4	caty	Foreign Exchange Contract Asset Fair Value Gain Disclosure ForeignExchangeContractAssetFairValueGainDisclosure	1832000
CY2016Q4	caty	Deferred Tax Liabilities Deferred Expense Loan Costs DeferredTaxLiabilitiesDeferredExpenseLoanCosts	8695000
CY2017Q4	caty	Deferred Tax Liabilities Dividends On Federal Home Loan Bank Common Stock DeferredTaxLiabilitiesDividendsOnFederalHomeLoanBankCommonStock	1021000
CY2016Q4	caty	Deferred Tax Liabilities Dividends On Federal Home Loan Bank Common Stock DeferredTaxLiabilitiesDividendsOnFederalHomeLoanBankCommonStock	1322000
CY2017	caty	Defined Contribution Plan Employer Matching Percentage Of Eligible Compensation After One Year Of Service DefinedContributionPlanEmployerMatchingPercentageOfEligibleCompensationAfterOneYearOfService	0.04
CY2017	caty	Defined Contribution Plan Employers Matching Contribution Vesting Percentage After Five Years Of Service DefinedContributionPlanEmployersMatchingContributionVestingPercentageAfterFiveYearsOfService	1
CY2017	caty	Defined Contribution Plan Employers Matching Contribution Vesting Percentage After Two Years Of Service DefinedContributionPlanEmployersMatchingContributionVestingPercentageAfterTwoYearsOfService	0.25
CY2017	caty	Defined Contribution Plan Employers Matching Contribution Vesting Percentage After Two Years Of Service Increment DefinedContributionPlanEmployersMatchingContributionVestingPercentageAfterTwoYearsOfServiceIncrement	0.25
CY2017	caty	Defined Contribution Plan Employers Matching Contribution Vesting Percentage Less Than Two Years Of Service DefinedContributionPlanEmployersMatchingContributionVestingPercentageLessThanTwoYearsOfService	0
CY2017	caty	Dividend Income From Federal Home Loan Bank Stock DividendIncomeFromFederalHomeLoanBankStock	1798000
CY2016	caty	Dividend Income From Federal Home Loan Bank Stock DividendIncomeFromFederalHomeLoanBankStock	2099000
CY2015	caty	Dividend Income From Federal Home Loan Bank Stock DividendIncomeFromFederalHomeLoanBankStock	3164000
CY2016	caty	Effective Income Tax Rate Reconciliation Deferred Taxes Writedown Percentage EffectiveIncomeTaxRateReconciliationDeferredTaxesWritedownPercentage
	caty	Effective Income Tax Rate Reconciliation Deferred Taxes Writedown Percentage EffectiveIncomeTaxRateReconciliationDeferredTaxesWritedownPercentage
CY2016	caty	Effective Income Tax Rate Reconciliation Non Taxable Bargain Purchase Gain Percentage EffectiveIncomeTaxRateReconciliationNonTaxableBargainPurchaseGainPercentage
	caty	Effective Income Tax Rate Reconciliation Non Taxable Bargain Purchase Gain Percentage EffectiveIncomeTaxRateReconciliationNonTaxableBargainPurchaseGainPercentage
CY2017	caty	Effective Income Tax Rate Reconciliation Sharebased Compensation Excess Tax Benefit Amount EffectiveIncomeTaxRateReconciliationSharebasedCompensationExcessTaxBenefitAmount	-3146000
CY2016	caty	Effective Income Tax Rate Reconciliation Sharebased Compensation Excess Tax Benefit Amount EffectiveIncomeTaxRateReconciliationSharebasedCompensationExcessTaxBenefitAmount
	caty	Effective Income Tax Rate Reconciliation Sharebased Compensation Excess Tax Benefit Amount EffectiveIncomeTaxRateReconciliationSharebasedCompensationExcessTaxBenefitAmount
CY2017	caty	Effective Income Tax Rate Reconciliation Sharebased Compensation Excess Tax Benefit Percentage EffectiveIncomeTaxRateReconciliationSharebasedCompensationExcessTaxBenefitPercentage	-0.01
CY2016	caty	Effective Income Tax Rate Reconciliation Sharebased Compensation Excess Tax Benefit Percentage EffectiveIncomeTaxRateReconciliationSharebasedCompensationExcessTaxBenefitPercentage
	caty	Effective Income Tax Rate Reconciliation Sharebased Compensation Excess Tax Benefit Percentage EffectiveIncomeTaxRateReconciliationSharebasedCompensationExcessTaxBenefitPercentage
CY2017	caty	Effective Income Tax Rate Reconciliationdeferred Taxes Write Down Amount EffectiveIncomeTaxRateReconciliationdeferredTaxesWriteDownAmount	23365000
CY2016	caty	Effective Income Tax Rate Reconciliationdeferred Taxes Write Down Amount EffectiveIncomeTaxRateReconciliationdeferredTaxesWriteDownAmount
	caty	Effective Income Tax Rate Reconciliationdeferred Taxes Write Down Amount EffectiveIncomeTaxRateReconciliationdeferredTaxesWriteDownAmount
CY2017Q4	caty	Excess Common Equity Tier One Risk Based Capital ExcessCommonEquityTierOneRiskBasedCapital	991473000
CY2016Q4	caty	Excess Common Equity Tier One Risk Based Capital ExcessCommonEquityTierOneRiskBasedCapital	947761000
CY2017Q4	caty	Excess Common Equity Tier One Risk Based Capital To Risk Weighted Assets ExcessCommonEquityTierOneRiskBasedCapitalToRiskWeightedAssets	0.0769
CY2016Q4	caty	Excess Common Equity Tier One Risk Based Capital To Risk Weighted Assets ExcessCommonEquityTierOneRiskBasedCapitalToRiskWeightedAssets	0.0834
CY2017	caty	Excess Tax Benefit Shortfall From Sharebased Compensation Financing Activities ExcessTaxBenefitShortfallFromSharebasedCompensationFinancingActivities
CY2016	caty	Excess Tax Benefit Shortfall From Sharebased Compensation Financing Activities ExcessTaxBenefitShortfallFromSharebasedCompensationFinancingActivities
CY2015	caty	Excess Tax Benefit Shortfall From Sharebased Compensation Financing Activities ExcessTaxBenefitShortfallFromSharebasedCompensationFinancingActivities	-5348000
CY2017	caty	Excess Tax Benefit Shortfall Of Tax Deductions From Sharebased Compensation Operating Activities ExcessTaxBenefitShortfallOfTaxDeductionsFromSharebasedCompensationOperatingActivities
CY2016	caty	Excess Tax Benefit Shortfall Of Tax Deductions From Sharebased Compensation Operating Activities ExcessTaxBenefitShortfallOfTaxDeductionsFromSharebasedCompensationOperatingActivities
CY2015	caty	Excess Tax Benefit Shortfall Of Tax Deductions From Sharebased Compensation Operating Activities ExcessTaxBenefitShortfallOfTaxDeductionsFromSharebasedCompensationOperatingActivities	-5348000
CY2017Q4	caty	Federal Home Loan Bank Stock Shares FederalHomeLoanBankStockShares	230850
CY2016	caty	Financing Receivable Allowance For Credit Losses Net Charge Offs FinancingReceivableAllowanceForCreditLossesNetChargeOffs	-4347000
CY2017	caty	Financing Receivable Allowance For Credit Losses Net Charge Offs FinancingReceivableAllowanceForCreditLossesNetChargeOffs	6813000
CY2016Q4	caty	Foreign Exchange Contract Asset Fair Value Gain Disclosure ForeignExchangeContractAssetFairValueGainDisclosure	1302000
CY2017Q4	caty	Gross Loans Comprised Of Commercial Loans Percentage GrossLoansComprisedOfCommercialLoansPercentage	0.191
CY2017Q4	caty	Gross Loans Comprised Of Commercial Mortgage Loans Percentage GrossLoansComprisedOfCommercialMortgageLoansPercentage	0.504
CY2017	caty	Increase In Total Assets And Liabilities From Consolidating Affordable Housing Equity Interest IncreaseInTotalAssetsAndLiabilitiesFromConsolidatingAffordableHousingEquityInterest	23600000
CY2016	caty	Increase In Total Assets And Liabilities From Consolidating Affordable Housing Equity Interest IncreaseInTotalAssetsAndLiabilitiesFromConsolidatingAffordableHousingEquityInterest	23700000
CY2017	caty	Interest Expense Deferred Payments From Acquisition InterestExpenseDeferredPaymentsFromAcquisition	1861000
CY2016	caty	Interest Expense Deferred Payments From Acquisition InterestExpenseDeferredPaymentsFromAcquisition
CY2015	caty	Interest Expense Deferred Payments From Acquisition InterestExpenseDeferredPaymentsFromAcquisition
CY2017	caty	Letter Of Credit Commissions LetterOfCreditCommissions	4860000
CY2016	caty	Letter Of Credit Commissions LetterOfCreditCommissions	4939000
CY2015	caty	Letter Of Credit Commissions LetterOfCreditCommissions	5545000
CY2017	caty	Loans To Facilitate Sale Of Other Real Estate Owned LoansToFacilitateSaleOfOtherRealEstateOwned	10500000
CY2016	caty	Loans To Facilitate Sale Of Other Real Estate Owned LoansToFacilitateSaleOfOtherRealEstateOwned	2616000
CY2015	caty	Loans To Facilitate Sale Of Other Real Estate Owned LoansToFacilitateSaleOfOtherRealEstateOwned
CY2017	caty	Low Income Housing Tax Credit Investments Pretax Writedown LowIncomeHousingTaxCreditInvestmentsPretaxWritedown	2600000
CY2017Q4	caty	Low Income Housing Tax Credit Investments Pretax Writedown LowIncomeHousingTaxCreditInvestmentsPretaxWritedown	2600000
CY2017Q4	caty	Maximum Loan Size Portfolio Stratification Homogenous Portfolio MaximumLoanSizePortfolioStratificationHomogenousPortfolio	500000
CY2017	caty	Minimum Number Of Years Allowed To Participate In Employee Stock Ownership Plan MinimumNumberOfYearsAllowedToParticipateInEmployeeStockOwnershipPlan	P2Y
CY2017Q4	caty	Minimum Stock Requirement On Outstanding Federal Home Loan Bank Borrowings Shares MinimumStockRequirementOnOutstandingFederalHomeLoanBankBorrowingsShares	150000
CY2017Q4	caty	Net Amount Of Derivative Assets Presented In The Balance Sheet NetAmountOfDerivativeAssetsPresentedInTheBalanceSheet	5218000
CY2016Q4	caty	Net Amount Of Derivative Assets Presented In The Balance Sheet NetAmountOfDerivativeAssetsPresentedInTheBalanceSheet	938000
CY2017Q4	caty	Net Amount Of Derivative Assets Presented In The Balance Sheet Not Offset NetAmountOfDerivativeAssetsPresentedInTheBalanceSheetNotOffset	5218000
CY2016Q4	caty	Net Amount Of Derivative Assets Presented In The Balance Sheet Not Offset NetAmountOfDerivativeAssetsPresentedInTheBalanceSheetNotOffset	938000
CY2017Q4	caty	Net Amount Of Derivative Liabilities Presented In The Balance Sheet NetAmountOfDerivativeLiabilitiesPresentedInTheBalanceSheet	2699000
CY2016Q4	caty	Net Amount Of Derivative Liabilities Presented In The Balance Sheet NetAmountOfDerivativeLiabilitiesPresentedInTheBalanceSheet	3744000
CY2017Q4	caty	Net Amounts Of Liabilities Presented In The Statement Of Financial Position NetAmountsOfLiabilitiesPresentedInTheStatementOfFinancialPosition	100000000
CY2016Q4	caty	Net Amounts Of Liabilities Presented In The Statement Of Financial Position NetAmountsOfLiabilitiesPresentedInTheStatementOfFinancialPosition	350000000
CY2017	caty	Net Change In Unrealized Holding Loss Gain On Securities Available For Sale Net Of Tax NetChangeInUnrealizedHoldingLossGainOnSecuritiesAvailableForSaleNetOfTax	485000
CY2016	caty	Net Change In Unrealized Holding Loss Gain On Securities Available For Sale Net Of Tax NetChangeInUnrealizedHoldingLossGainOnSecuritiesAvailableForSaleNetOfTax	3886000
CY2015	caty	Net Change In Unrealized Holding Loss Gain On Securities Available For Sale Net Of Tax NetChangeInUnrealizedHoldingLossGainOnSecuritiesAvailableForSaleNetOfTax	-2259000
CY2017	caty	Net Increase In Investment In Affordable Housing Investing And Alternative Energy Partnerships NetIncreaseInInvestmentInAffordableHousingInvestingAndAlternativeEnergyPartnerships	40284000
CY2016	caty	Net Increase In Investment In Affordable Housing Investing And Alternative Energy Partnerships NetIncreaseInInvestmentInAffordableHousingInvestingAndAlternativeEnergyPartnerships	82966000
CY2015	caty	Net Increase In Investment In Affordable Housing Investing And Alternative Energy Partnerships NetIncreaseInInvestmentInAffordableHousingInvestingAndAlternativeEnergyPartnerships	53235000
CY2017	caty	Non Accrual Loans NonAccrualLoans	56787000
CY2016	caty	Non Accrual Loans NonAccrualLoans	57182000
CY2015	caty	Non Accrual Loans NonAccrualLoans	58074000
CY2017	caty	Non Accrual Loans Held For Sale NonAccrualLoansHeldForSale	8000000
CY2016	caty	Non Accrual Loans Held For Sale NonAccrualLoansHeldForSale	7500000
CY2015	caty	Non Accrual Loans Held For Sale NonAccrualLoansHeldForSale	5944000
CY2017	caty	Nonaccrual Portfolio Loans NonaccrualPortfolioLoans	48787000
CY2016	caty	Nonaccrual Portfolio Loans NonaccrualPortfolioLoans	49682000
CY2015	caty	Nonaccrual Portfolio Loans NonaccrualPortfolioLoans	52130000
CY2017Q4	caty	Notional Amount Of Foreign Currency Derivative Purchase Contracts With Gain NotionalAmountOfForeignCurrencyDerivativePurchaseContractsWithGain	108530000
CY2016Q4	caty	Notional Amount Of Foreign Currency Derivative Purchase Contracts With Gain NotionalAmountOfForeignCurrencyDerivativePurchaseContractsWithGain	82439000
CY2017Q4	caty	Notional Amount Of Foreign Currency Derivative Purchase Contracts With Loss NotionalAmountOfForeignCurrencyDerivativePurchaseContractsWithLoss	32127000
CY2016Q4	caty	Notional Amount Of Foreign Currency Derivative Purchase Contracts With Loss NotionalAmountOfForeignCurrencyDerivativePurchaseContractsWithLoss	89545000
CY2017Q4	caty	Number Of Limited Partnerships In Housing Investments NumberOfLimitedPartnershipsInHousingInvestments	8
CY2017	caty	Operations Of Affordable Housing Investments Net And Alternative Energy Partnerships Net OperationsOfAffordableHousingInvestmentsNetAndAlternativeEnergyPartnershipsNet	27212000
CY2016	caty	Operations Of Affordable Housing Investments Net And Alternative Energy Partnerships Net OperationsOfAffordableHousingInvestmentsNetAndAlternativeEnergyPartnershipsNet	40264000
CY2015	caty	Operations Of Affordable Housing Investments Net And Alternative Energy Partnerships Net OperationsOfAffordableHousingInvestmentsNetAndAlternativeEnergyPartnershipsNet	33335000
CY2017Q4	caty	Option Contracts Fair Value OptionContractsFairValue	9000
CY2016Q4	caty	Option Contracts Fair Value OptionContractsFairValue	121000
CY2017Q4	caty	Options Options	1014000
CY2016Q4	caty	Options Options	12117000
CY2017Q4	caty	Other Borrowings Fair Value Disclosure OtherBorrowingsFairValueDisclosure	51075000
CY2016Q4	caty	Other Borrowings Fair Value Disclosure OtherBorrowingsFairValueDisclosure	15944000
CY2017Q4	caty	Other Borrowings For Affordable Housing Investments OtherBorrowingsForAffordableHousingInvestments	17481000
CY2016Q4	caty	Other Borrowings For Affordable Housing Investments OtherBorrowingsForAffordableHousingInvestments	17662000
CY2017Q4	caty	Other Borrowings From Consolidating Affordable Housing Equity Interest OtherBorrowingsFromConsolidatingAffordableHousingEquityInterest	17481000
CY2016Q4	caty	Other Borrowings From Consolidating Affordable Housing Equity Interest OtherBorrowingsFromConsolidatingAffordableHousingEquityInterest	17661000
CY2017Q4	caty	Other Letters Of Credit Fair Value OtherLettersOfCreditFairValue	-52000
CY2016Q4	caty	Other Letters Of Credit Fair Value OtherLettersOfCreditFairValue	-16000
CY2017Q4	caty	Other Letters Of Credit Notional Amount OtherLettersOfCreditNotionalAmount	27353000
CY2016Q4	caty	Other Letters Of Credit Notional Amount OtherLettersOfCreditNotionalAmount	37283000
CY2017Q4	caty	Other Liabilities From Affordablehousing Unfunded Commitments OtherLiabilitiesFromAffordablehousingUnfundedCommitments	124657000
CY2016Q4	caty	Other Liabilities From Affordablehousing Unfunded Commitments OtherLiabilitiesFromAffordablehousingUnfundedCommitments	115038000
CY2017	caty	Other Noncash Interest OtherNoncashInterest	-1740000
CY2016	caty	Other Noncash Interest OtherNoncashInterest	-1272000
CY2015	caty	Other Noncash Interest OtherNoncashInterest	-332000
CY2017Q4	caty	Percentage Of Charge Off To Contractual Balances For Impaired Loans PercentageOfChargeOffToContractualBalancesForImpairedLoans	0.072
CY2016Q4	caty	Percentage Of Charge Off To Contractual Balances For Impaired Loans PercentageOfChargeOffToContractualBalancesForImpairedLoans	0.084
CY2017Q4	caty	Percentage Of Outstanding Common Stock Under Employee Stock Ownership Plan PercentageOfOutstandingCommonStockUnderEmployeeStockOwnershipPlan	0.011
CY2017	caty	Percentage Of Participant Borrowing Capacity Of Vested Amount PercentageOfParticipantBorrowingCapacityOfVestedAmount	0.5
CY2017Q4	caty	Percentage Of Subsidiaries Common Securities Owned By Parent Company PercentageOfSubsidiariesCommonSecuritiesOwnedByParentCompany	1
CY2017	caty	Percentage Of Unrealized Losses For Securities With Unrealized Losses For Greater Than Twelve Months PercentageOfUnrealizedLossesForSecuritiesWithUnrealizedLossesForGreaterThanTwelveMonths	0.021
CY2017	caty	Percentage Of Unrealized Losses For Securities With Unrealized Losses For Less Than Twelve Months PercentageOfUnrealizedLossesForSecuritiesWithUnrealizedLossesForLessThanTwelveMonths	0.006
CY2017Q4	caty	Pledged Investment Securities PledgedInvestmentSecurities	272200000
CY2016Q4	caty	Pledged Investment Securities PledgedInvestmentSecurities	649100000
CY2017	caty	Proceeds From Maturities Repayments And Calls Of Other Investment Securities ProceedsFromMaturitiesRepaymentsAndCallsOfOtherInvestmentSecurities	491000000
CY2016	caty	Proceeds From Maturities Repayments And Calls Of Other Investment Securities ProceedsFromMaturitiesRepaymentsAndCallsOfOtherInvestmentSecurities	460000000
CY2017	caty	Proceeds From Repayment And Sale Of Mortgage Backed Securities Available For Sale ProceedsFromRepaymentAndSaleOfMortgageBackedSecuritiesAvailableForSale	71645000
CY2016	caty	Proceeds From Repayment And Sale Of Mortgage Backed Securities Available For Sale ProceedsFromRepaymentAndSaleOfMortgageBackedSecuritiesAvailableForSale	758271000
CY2015	caty	Proceeds From Repayment And Sale Of Mortgage Backed Securities Available For Sale ProceedsFromRepaymentAndSaleOfMortgageBackedSecuritiesAvailableForSale	749219000
CY2017	caty	Proceeds From Sales And Repayments Of Other Investment Securities ProceedsFromSalesAndRepaymentsOfOtherInvestmentSecurities	111700000
CY2016	caty	Proceeds From Sales And Repayments Of Other Investment Securities ProceedsFromSalesAndRepaymentsOfOtherInvestmentSecurities	294000
CY2017	caty	Provision Reversal For Losses On Other Real Estate Owned ProvisionReversalForLossesOnOtherRealEstateOwned	691000
CY2016	caty	Provision Reversal For Losses On Other Real Estate Owned ProvisionReversalForLossesOnOtherRealEstateOwned	176000
CY2015	caty	Provision Reversal For Losses On Other Real Estate Owned ProvisionReversalForLossesOnOtherRealEstateOwned	547000
CY2017	caty	Realized Gain From Sale And Call Of Investment Securities RealizedGainFromSaleAndCallOfInvestmentSecurities	1700000
CY2016	caty	Realized Gain From Sale And Call Of Investment Securities RealizedGainFromSaleAndCallOfInvestmentSecurities	5100000
CY2017	caty	Realized Loss From Sale And Call Of Investment Securities RealizedLossFromSaleAndCallOfInvestmentSecurities	710000
CY2016	caty	Realized Loss From Sale And Call Of Investment Securities RealizedLossFromSaleAndCallOfInvestmentSecurities	0
CY2016Q4	caty	Reserve For Off Balance Sheet Credit Commitments ReserveForOffBalanceSheetCreditCommitments	3224000
CY2017Q4	caty	Reserve For Off Balance Sheet Credit Commitments ReserveForOffBalanceSheetCreditCommitments	4588000
CY2016Q4	caty	Reserve To Impaired Loans ReserveToImpairedLoans	2796000
CY2017Q4	caty	Reserve To Impaired Loans ReserveToImpairedLoans	2134000
CY2016Q4	caty	Reserve To Non Impaired Loans ReserveToNonImpairedLoans	116170000
CY2017Q4	caty	Reserve To Non Impaired Loans ReserveToNonImpairedLoans	121145000
CY2017Q4	caty	Residential Mortgages Properties Percentage ResidentialMortgagesPropertiesPercentage	0.238
CY2017Q4	us-gaap	Available For Sale Securities Debt Maturities After Five Through Ten Years Fair Value AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsFairValue	7962000
CY2017Q4	us-gaap	Available For Sale Securities Debt Maturities After One Through Five Years Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsAmortizedCost	465195000
CY2017Q4	us-gaap	Available For Sale Securities Debt Maturities After One Through Five Years Fair Value AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsFairValue	456804000
CY2017Q4	us-gaap	Available For Sale Securities Debt Maturities After Ten Years Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesAfterTenYearsAmortizedCost	597544000
CY2017	caty	Securities Sold Under Agreements To Repurchase Amount Outstanding SecuritiesSoldUnderAgreementsToRepurchaseAmountOutstanding	100000000
CY2016	caty	Securities Sold Under Agreements To Repurchase Amount Outstanding SecuritiesSoldUnderAgreementsToRepurchaseAmountOutstanding	350000000
CY2015	caty	Securities Sold Under Agreements To Repurchase Amount Outstanding SecuritiesSoldUnderAgreementsToRepurchaseAmountOutstanding	400000000
CY2017	caty	Securities Sold Under Agreements To Repurchase Average Amount Outstanding During The Year SecuritiesSoldUnderAgreementsToRepurchaseAverageAmountOutstandingDuringTheYear	136849000
CY2016	caty	Securities Sold Under Agreements To Repurchase Average Amount Outstanding During The Year SecuritiesSoldUnderAgreementsToRepurchaseAverageAmountOutstandingDuringTheYear	381967000
CY2015	caty	Securities Sold Under Agreements To Repurchase Average Amount Outstanding During The Year SecuritiesSoldUnderAgreementsToRepurchaseAverageAmountOutstandingDuringTheYear	400822000
CY2017	caty	Securities Sold Under Agreements To Repurchase Interest Rate At Period End SecuritiesSoldUnderAgreementsToRepurchaseInterestRateAtPeriodEnd	0.0286
CY2016	caty	Securities Sold Under Agreements To Repurchase Interest Rate At Period End SecuritiesSoldUnderAgreementsToRepurchaseInterestRateAtPeriodEnd	0.0406
CY2015	caty	Securities Sold Under Agreements To Repurchase Interest Rate At Period End SecuritiesSoldUnderAgreementsToRepurchaseInterestRateAtPeriodEnd	0.0389
CY2017	caty	Securities Sold Under Agreements To Repurchase Maximum Amount Outstanding At Month End SecuritiesSoldUnderAgreementsToRepurchaseMaximumAmountOutstandingAtMonthEnd	150000000
CY2016	caty	Securities Sold Under Agreements To Repurchase Maximum Amount Outstanding At Month End SecuritiesSoldUnderAgreementsToRepurchaseMaximumAmountOutstandingAtMonthEnd	400000000
CY2015	caty	Securities Sold Under Agreements To Repurchase Maximum Amount Outstanding At Month End SecuritiesSoldUnderAgreementsToRepurchaseMaximumAmountOutstandingAtMonthEnd	400000000
CY2017Q4	caty	Short Term Investments And Interest Bearing Deposits ShortTermInvestmentsAndInterestBearingDeposits	292745000
CY2016Q4	caty	Short Term Investments And Interest Bearing Deposits ShortTermInvestmentsAndInterestBearingDeposits	967067000
CY2017Q4	caty	Standby Letters Of Credit Fair Value StandbyLettersOfCreditFairValue	-1805000
CY2016Q4	caty	Standby Letters Of Credit Fair Value StandbyLettersOfCreditFairValue	-668000
CY2017Q4	caty	Standby Letters Of Credit Notional Amount StandbyLettersOfCreditNotionalAmount	140814000
CY2016Q4	caty	Standby Letters Of Credit Notional Amount StandbyLettersOfCreditNotionalAmount	75396000
CY2015	caty	Stock Issued During Period Value Warrants Exercised StockIssuedDuringPeriodValueWarrantsExercised
CY2016	caty	Stock Issued During Period Value Warrants Exercised StockIssuedDuringPeriodValueWarrantsExercised
CY2017	caty	Stock Issued During Period Value Warrants Exercised StockIssuedDuringPeriodValueWarrantsExercised
CY2017	caty	Stockholders Equity Period Increase Decrease Percentage StockholdersEquityPeriodIncreaseDecreasePercentage	0.079
CY2016	us-gaap	Accretion Amortization Of Discounts And Premiums Investments AccretionAmortizationOfDiscountsAndPremiumsInvestments	-6371000
CY2015	us-gaap	Accretion Amortization Of Discounts And Premiums Investments AccretionAmortizationOfDiscountsAndPremiumsInvestments	-5140000
CY2017Q4	us-gaap	Accrued Bonuses Current And Noncurrent AccruedBonusesCurrentAndNoncurrent	1800000
CY2016Q4	us-gaap	Accrued Bonuses Current And Noncurrent AccruedBonusesCurrentAndNoncurrent	1700000
CY2017Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	87951000
CY2016Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	83214000
CY2017Q4	caty	Temporarily Impaired Securities As Percentage Of Investment Securities TemporarilyImpairedSecuritiesAsPercentageOfInvestmentSecurities	0.886
CY2004Q4	caty	Threshold For Deferred Bonus ThresholdForDeferredBonus	225000
CY2015	caty	Total Benefit Of Tax Deductions TotalBenefitOfTaxDeductions	1100000
CY2017	caty	Transfers To Other Real Estate Owned From Loans Held For Investment TransfersToOtherRealEstateOwnedFromLoansHeldForInvestment	1243000
CY2016	caty	Transfers To Other Real Estate Owned From Loans Held For Investment TransfersToOtherRealEstateOwnedFromLoansHeldForInvestment	2698000
CY2015	caty	Transfers To Other Real Estate Owned From Loans Held For Investment TransfersToOtherRealEstateOwnedFromLoansHeldForInvestment	866000
CY2017Q4	caty	Weighted Average Rate Of Securities Sold Under Agreements WeightedAverageRateOfSecuritiesSoldUnderAgreements	0.0286
CY2016Q4	caty	Weighted Average Rate Of Securities Sold Under Agreements WeightedAverageRateOfSecuritiesSoldUnderAgreements	0.0406
CY2017	caty	Writedowns On Impaired Securities WritedownsOnImpairedSecurities
CY2016	caty	Writedowns On Impaired Securities WritedownsOnImpairedSecurities	206000
CY2015	caty	Writedowns On Impaired Securities WritedownsOnImpairedSecurities	3875000
CY2017	us-gaap	Accretion Amortization Of Discounts And Premiums Investments AccretionAmortizationOfDiscountsAndPremiumsInvestments	-2945000
CY2017Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-2511000
CY2016Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-3715000
CY2017Q4	us-gaap	Additional Paid In Capital AdditionalPaidInCapital	932874000
CY2016Q4	us-gaap	Additional Paid In Capital AdditionalPaidInCapital	895480000
CY2015	us-gaap	Adjustment To Additional Paid In Capital Income Tax Effect From Share Based Compensation Net AdjustmentToAdditionalPaidInCapitalIncomeTaxEffectFromShareBasedCompensationNet	-5348000
CY2016	us-gaap	Adjustment To Additional Paid In Capital Income Tax Effect From Share Based Compensation Net AdjustmentToAdditionalPaidInCapitalIncomeTaxEffectFromShareBasedCompensationNet	-132000
CY2015	us-gaap	Adjustments Related To Tax Withholding For Share Based Compensation AdjustmentsRelatedToTaxWithholdingForShareBasedCompensation	227000
CY2016	us-gaap	Adjustments Related To Tax Withholding For Share Based Compensation AdjustmentsRelatedToTaxWithholdingForShareBasedCompensation	103000
CY2017	us-gaap	Adjustments Related To Tax Withholding For Share Based Compensation AdjustmentsRelatedToTaxWithholdingForShareBasedCompensation	6813000
CY2015	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	4455000
CY2016	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	4413000
CY2017	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	5184000
CY2017Q4	us-gaap	Advances From Federal Home Loan Banks AdvancesFromFederalHomeLoanBanks	430000000
CY2016Q4	us-gaap	Advances From Federal Home Loan Banks AdvancesFromFederalHomeLoanBanks	350000000
CY2017Q4	us-gaap	Allowance For Credit Losses Change In Method Of Calculating Impairment AllowanceForCreditLossesChangeInMethodOfCalculatingImpairment	1556000
CY2016Q4	us-gaap	Allowance For Credit Losses Change In Method Of Calculating Impairment AllowanceForCreditLossesChangeInMethodOfCalculatingImpairment	1780000
CY2015Q4	us-gaap	Allowance For Credit Losses Change In Method Of Calculating Impairment AllowanceForCreditLossesChangeInMethodOfCalculatingImpairment	752000
CY2017	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	930000
CY2016	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	689000
CY2015	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	667000
CY2017	us-gaap	Asset Impairment Charges AssetImpairmentCharges	874000
CY2016	us-gaap	Asset Impairment Charges AssetImpairmentCharges	1307000
CY2015	us-gaap	Asset Impairment Charges AssetImpairmentCharges	2507000
CY2017Q4	us-gaap	Assets Assets	15640186000
CY2016Q4	us-gaap	Assets Assets	14520769000
CY2017Q4	us-gaap	Assets Fair Value Disclosure AssetsFairValueDisclosure	1340767000
CY2016Q4	us-gaap	Assets Fair Value Disclosure AssetsFairValueDisclosure	1316664000
CY2017Q4	us-gaap	Assets Fair Value Disclosure Nonrecurring AssetsFairValueDisclosureNonrecurring	73493000
CY2016Q4	us-gaap	Assets Fair Value Disclosure Nonrecurring AssetsFairValueDisclosureNonrecurring	37981000
CY2017Q4	us-gaap	Available For Sale Debt Securities Amortized Cost Basis AvailableForSaleDebtSecuritiesAmortizedCostBasis	1336345000
CY2016Q4	us-gaap	Available For Sale Debt Securities Amortized Cost Basis AvailableForSaleDebtSecuritiesAmortizedCostBasis	1317012000
CY2017Q4	us-gaap	Available For Sale Securities AvailableForSaleSecurities	1333626000
CY2016Q4	us-gaap	Available For Sale Securities AvailableForSaleSecurities	1314345000
CY2017Q4	us-gaap	Available For Sale Securities Accumulated Gross Unrealized Gain Before Tax AvailableForSaleSecuritiesAccumulatedGrossUnrealizedGainBeforeTax	13965000
CY2016Q4	us-gaap	Available For Sale Securities Accumulated Gross Unrealized Gain Before Tax AvailableForSaleSecuritiesAccumulatedGrossUnrealizedGainBeforeTax	12301000
CY2017Q4	us-gaap	Available For Sale Securities Accumulated Gross Unrealized Loss Before Tax AvailableForSaleSecuritiesAccumulatedGrossUnrealizedLossBeforeTax	16684000
CY2016Q4	us-gaap	Available For Sale Securities Accumulated Gross Unrealized Loss Before Tax AvailableForSaleSecuritiesAccumulatedGrossUnrealizedLossBeforeTax	14968000
CY2017Q4	us-gaap	Available For Sale Securities Amortized Cost AvailableForSaleSecuritiesAmortizedCost	1336345000
CY2016Q4	us-gaap	Available For Sale Securities Amortized Cost AvailableForSaleSecuritiesAmortizedCost	1317012000
CY2017Q4	us-gaap	Available For Sale Securities Continuous Unrealized Loss Position12 Months Or Longer Accumulated Loss AvailableForSaleSecuritiesContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss	13341000
CY2016Q4	us-gaap	Available For Sale Securities Continuous Unrealized Loss Position12 Months Or Longer Accumulated Loss AvailableForSaleSecuritiesContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss	1154000
CY2017Q4	us-gaap	Available For Sale Securities Continuous Unrealized Loss Position Accumulated Loss AvailableForSaleSecuritiesContinuousUnrealizedLossPositionAccumulatedLoss	16684000
CY2016Q4	us-gaap	Available For Sale Securities Continuous Unrealized Loss Position Accumulated Loss AvailableForSaleSecuritiesContinuousUnrealizedLossPositionAccumulatedLoss	14968000
CY2017Q4	us-gaap	Available For Sale Securities Continuous Unrealized Loss Position Fair Value AvailableForSaleSecuritiesContinuousUnrealizedLossPositionFairValue	1181295000
CY2016Q4	us-gaap	Available For Sale Securities Continuous Unrealized Loss Position Fair Value AvailableForSaleSecuritiesContinuousUnrealizedLossPositionFairValue	1053113000
CY2017Q4	us-gaap	Available For Sale Securities Continuous Unrealized Loss Position Less Than12 Months Accumulated Loss AvailableForSaleSecuritiesContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss	3343000
CY2016Q4	us-gaap	Available For Sale Securities Continuous Unrealized Loss Position Less Than12 Months Accumulated Loss AvailableForSaleSecuritiesContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss	13814000
CY2017Q4	us-gaap	Available For Sale Securities Continuous Unrealized Loss Position Less Than Twelve Months Fair Value AvailableForSaleSecuritiesContinuousUnrealizedLossPositionLessThanTwelveMonthsFairValue	556415000
CY2016Q4	us-gaap	Available For Sale Securities Continuous Unrealized Loss Position Less Than Twelve Months Fair Value AvailableForSaleSecuritiesContinuousUnrealizedLossPositionLessThanTwelveMonthsFairValue	1017655000
CY2017Q4	us-gaap	Available For Sale Securities Continuous Unrealized Loss Position Twelve Months Or Longer Fair Value AvailableForSaleSecuritiesContinuousUnrealizedLossPositionTwelveMonthsOrLongerFairValue	624880000
CY2016Q4	us-gaap	Available For Sale Securities Continuous Unrealized Loss Position Twelve Months Or Longer Fair Value AvailableForSaleSecuritiesContinuousUnrealizedLossPositionTwelveMonthsOrLongerFairValue	35458000
CY2017Q4	us-gaap	Available For Sale Securities Debt Maturities After Five Through Ten Years Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsAmortizedCost	8056000
CY2017Q4	us-gaap	Available For Sale Securities Debt Maturities After Ten Years Fair Value AvailableForSaleSecuritiesDebtMaturitiesAfterTenYearsFairValue	603629000
CY2017Q4	us-gaap	Available For Sale Securities Debt Maturities Within One Year Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearAmortizedCost	265550000
CY2017Q4	us-gaap	Available For Sale Securities Debt Maturities Within One Year Fair Value AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearFairValue	265231000
CY2017Q4	us-gaap	Available For Sale Securities In Unrealized Loss Positions Qualitative Disclosure Number Of Positions Less Than One Year AvailableForSaleSecuritiesInUnrealizedLossPositionsQualitativeDisclosureNumberOfPositionsLessThanOneYear	63
CY2016Q4	us-gaap	Available For Sale Securities In Unrealized Loss Positions Qualitative Disclosure Number Of Positions Less Than One Year AvailableForSaleSecuritiesInUnrealizedLossPositionsQualitativeDisclosureNumberOfPositionsLessThanOneYear	30
CY2017Q4	us-gaap	Availableforsale Securities In Unrealized Loss Positions Qualitative Disclosure Number Of Positions1 AvailableforsaleSecuritiesInUnrealizedLossPositionsQualitativeDisclosureNumberOfPositions1	87
CY2016Q4	us-gaap	Availableforsale Securities In Unrealized Loss Positions Qualitative Disclosure Number Of Positions1 AvailableforsaleSecuritiesInUnrealizedLossPositionsQualitativeDisclosureNumberOfPositions1	37
CY2017Q4	us-gaap	Availableforsale Securities In Unrealized Loss Positions Qualitative Disclosure Number Of Positions Greater Than Or Equal To One Year AvailableforsaleSecuritiesInUnrealizedLossPositionsQualitativeDisclosureNumberOfPositionsGreaterThanOrEqualToOneYear	24
CY2016Q4	us-gaap	Availableforsale Securities In Unrealized Loss Positions Qualitative Disclosure Number Of Positions Greater Than Or Equal To One Year AvailableforsaleSecuritiesInUnrealizedLossPositionsQualitativeDisclosureNumberOfPositionsGreaterThanOrEqualToOneYear	7
CY2017Q4	us-gaap	Bank Acceptances Executed And Outstanding BankAcceptancesExecutedAndOutstanding	13482000
CY2016Q4	us-gaap	Bank Acceptances Executed And Outstanding BankAcceptancesExecutedAndOutstanding	12182000
CY2017	us-gaap	Business Combination Bargain Purchase Gain Recognized Amount BusinessCombinationBargainPurchaseGainRecognizedAmount	5628000
CY2016	us-gaap	Business Combination Bargain Purchase Gain Recognized Amount BusinessCombinationBargainPurchaseGainRecognizedAmount
CY2015	us-gaap	Business Combination Bargain Purchase Gain Recognized Amount BusinessCombinationBargainPurchaseGainRecognizedAmount
CY2017Q4	us-gaap	Business Combination Contingent Consideration Liability BusinessCombinationContingentConsiderationLiability	35404000
CY2016Q4	us-gaap	Business Combination Contingent Consideration Liability BusinessCombinationContingentConsiderationLiability
CY2017Q4	us-gaap	Capital Capital	1820860000
CY2016Q4	us-gaap	Capital Capital	1702144000
CY2017Q4	us-gaap	Capital Required For Capital Adequacy CapitalRequiredForCapitalAdequacy	1032093000
CY2016Q4	us-gaap	Capital Required For Capital Adequacy CapitalRequiredForCapitalAdequacy	909493000
CY2017Q4	us-gaap	Capital Required For Capital Adequacy To Risk Weighted Assets CapitalRequiredForCapitalAdequacyToRiskWeightedAssets	0.08
CY2016Q4	us-gaap	Capital Required For Capital Adequacy To Risk Weighted Assets CapitalRequiredForCapitalAdequacyToRiskWeightedAssets	0.08
CY2017Q4	us-gaap	Capital Required To Be Well Capitalized To Risk Weighted Assets CapitalRequiredToBeWellCapitalizedToRiskWeightedAssets	0.1
CY2017Q4	us-gaap	Capital To Risk Weighted Assets CapitalToRiskWeightedAssets	0.1411
CY2016Q4	us-gaap	Capital To Risk Weighted Assets CapitalToRiskWeightedAssets	0.1497
CY2016Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	218017000
CY2015Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	180130000
CY2014Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	176830000
CY2017Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	247056000
CY2017Q4	us-gaap	Cash And Cash Equivalents Fair Value Disclosure CashAndCashEquivalentsFairValueDisclosure	247056000
CY2016Q4	us-gaap	Cash And Cash Equivalents Fair Value Disclosure CashAndCashEquivalentsFairValueDisclosure	218017000
CY2017	us-gaap	Cash And Cash Equivalents Period Increase Decrease CashAndCashEquivalentsPeriodIncreaseDecrease	29039000
CY2016	us-gaap	Cash And Cash Equivalents Period Increase Decrease CashAndCashEquivalentsPeriodIncreaseDecrease	37887000
CY2015	us-gaap	Cash And Cash Equivalents Period Increase Decrease CashAndCashEquivalentsPeriodIncreaseDecrease	3300000
CY2017Q4	us-gaap	Cash And Due From Banks CashAndDueFromBanks	247056000
CY2016Q4	us-gaap	Cash And Due From Banks CashAndDueFromBanks	218017000
CY2017	us-gaap	Change In Unrealized Gain Loss On Fair Value Hedging Instruments1 ChangeInUnrealizedGainLossOnFairValueHedgingInstruments1	719000
CY2016	us-gaap	Change In Unrealized Gain Loss On Fair Value Hedging Instruments1 ChangeInUnrealizedGainLossOnFairValueHedgingInstruments1	825000
CY2015	us-gaap	Change In Unrealized Gain Loss On Fair Value Hedging Instruments1 ChangeInUnrealizedGainLossOnFairValueHedgingInstruments1	-598000
CY2017Q4	us-gaap	Commitments And Contingencies CommitmentsAndContingencies
CY2016Q4	us-gaap	Commitments And Contingencies CommitmentsAndContingencies
CY2017	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	0.87
CY2016	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	0.75
CY2017Q4	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.01
CY2016Q4	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.01
CY2017Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	100000000
CY2016Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	100000000
CY2017Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	89104022
CY2016Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	87820920
CY2017Q4	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	80893379
CY2016Q4	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	79610277
CY2017Q4	us-gaap	Common Stock Value CommonStockValue	891000
CY2016Q4	us-gaap	Common Stock Value CommonStockValue	878000
CY2017	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	177246000
CY2016	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	179810000
CY2015	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	158252000
CY2017	us-gaap	Concentration Risk Credit Risk ConcentrationRiskCreditRisk	<div style="display: inline; font-family: times new roman; font-size: 10pt"><div style="display: inline; font-family: times new roman; font-size: 10pt"><div style="display: inline; font-family: times new roman; font-size: 10pt"><div style="display: inline; font-family: times new roman; font-size: 10pt"><div style="display: inline; font-family: times new roman; font-size: 10pt"><div style="display: inline; font-family: times new roman; font-size: 10pt"><div style="display: inline; font-family: times new roman; font-size: 10pt"><div style="display: inline; font-family: times new roman; font-size: 10pt"><div style="display: inline; font-family: times new roman; font-size: 10pt"><div style="display: inline; font-family: times new roman; font-size: 10pt"><div style=" margin: 0pt; text-align: justify; text-indent: 18pt; font-family: Times New Roman, Times, serif; font-size: 10pt;"><div style="display: inline; font-style: italic;">Concentration</div><div style="display: inline; font-family: Times New Roman, Times, serif; font-size: 10pt;"><div style="display: inline; font-style: italic;">s. </div>The Bank was incorporated in California and started its business from California. Therefore, loans originated and deposits solicited were mainly from California. As of <div style="display: inline; font-style: italic; font-style: normal; font-weight: inherit;"> December 31, 2017, </div>gross loans were primarily comprised of <div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;">50.4%</div> of commercial mortgage loans, <div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;">23.8%</div> of residential mortgage loans, and <div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;">19.1%</div> of commercial loans. As of <div style="display: inline; font-style: italic; font-style: normal; font-weight: inherit;"> December 31, 2017, </div>approximately <div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;">61%</div> of the Bank’s residential mortgages were for properties located in California.</div></div></div></div></div></div></div></div></div></div></div></div>
CY2017	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	59433000
CY2016	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	28788000
CY2015	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	31587000
CY2017	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	87711000
CY2016	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	51152000
CY2015	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	57983000
CY2017	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	28278000
CY2016	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	22364000
CY2015	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	26396000
CY2014Q4	us-gaap	Debt Instrument Basis Spread On Variable Rate1 DebtInstrumentBasisSpreadOnVariableRate1	0.0275
CY2014Q1	us-gaap	Debt Instrument Basis Spread On Variable Rate1 DebtInstrumentBasisSpreadOnVariableRate1	0.035
CY2017Q4	us-gaap	Debt Weighted Average Interest Rate DebtWeightedAverageInterestRate	0.0311
CY2016Q4	us-gaap	Debt Weighted Average Interest Rate DebtWeightedAverageInterestRate	0.0401
CY2015Q4	us-gaap	Debt Weighted Average Interest Rate DebtWeightedAverageInterestRate	0.0395
CY2017	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	31818000
CY2016	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	11775000
CY2015	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	3738000
CY2017	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	34554000
CY2016	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	15949000
CY2015	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	2004000
CY2017Q4	us-gaap	Deferred Income Tax Liabilities DeferredIncomeTaxLiabilities	12434000
CY2016Q4	us-gaap	Deferred Income Tax Liabilities DeferredIncomeTaxLiabilities	20745000
CY2017	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	2736000
CY2016	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	4174000
CY2015	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	-1734000
CY2017Q4	us-gaap	Deferred Tax Assets Equity Method Investments DeferredTaxAssetsEquityMethodInvestments	2561000
CY2016Q4	us-gaap	Deferred Tax Assets Equity Method Investments DeferredTaxAssetsEquityMethodInvestments	4437000
CY2017Q4	us-gaap	Deferred Tax Assets Gross DeferredTaxAssetsGross	87771000
CY2016Q4	us-gaap	Deferred Tax Assets Gross DeferredTaxAssetsGross	91941000
CY2017Q4	us-gaap	Deferred Tax Assets Investments DeferredTaxAssetsInvestments	580000
CY2016Q4	us-gaap	Deferred Tax Assets Investments DeferredTaxAssetsInvestments
CY2017Q4	us-gaap	Deferred Tax Assets Liabilities Net DeferredTaxAssetsLiabilitiesNet	75337000
CY2016Q4	us-gaap	Deferred Tax Assets Liabilities Net DeferredTaxAssetsLiabilitiesNet	71196000
CY2017Q4	us-gaap	Deferred Tax Assets Operating Loss Carryforwards DeferredTaxAssetsOperatingLossCarryforwards	18375000
CY2016Q4	us-gaap	Deferred Tax Assets Operating Loss Carryforwards DeferredTaxAssetsOperatingLossCarryforwards
CY2017Q4	us-gaap	Deferred Tax Assets Other DeferredTaxAssetsOther	3279000
CY2016Q4	us-gaap	Deferred Tax Assets Other DeferredTaxAssetsOther	3598000
CY2017Q4	us-gaap	Deferred Tax Assets Property Plant And Equipment DeferredTaxAssetsPropertyPlantAndEquipment	1676000
CY2016Q4	us-gaap	Deferred Tax Assets Property Plant And Equipment DeferredTaxAssetsPropertyPlantAndEquipment
CY2017Q4	us-gaap	Deferred Tax Assets State Taxes DeferredTaxAssetsStateTaxes	6783000
CY2016Q4	us-gaap	Deferred Tax Assets State Taxes DeferredTaxAssetsStateTaxes	6426000
CY2017Q4	us-gaap	Deferred Tax Assets Tax Credit Carryforwards DeferredTaxAssetsTaxCreditCarryforwards	9278000
CY2016Q4	us-gaap	Deferred Tax Assets Tax Credit Carryforwards DeferredTaxAssetsTaxCreditCarryforwards
CY2017Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Employee Bonuses DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsEmployeeBonuses	630000
CY2016Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Employee Bonuses DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsEmployeeBonuses	6095000
CY2017Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Share Based Compensation Cost DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost	2630000
CY2016Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Share Based Compensation Cost DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost	4729000
CY2017Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Provision For Loan Losses DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsProvisionForLoanLosses	37157000
CY2016Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Provision For Loan Losses DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsProvisionForLoanLosses	51192000
CY2017Q4	us-gaap	Deferred Tax Assets Unrealized Losses On Availablefor Sale Securities Gross DeferredTaxAssetsUnrealizedLossesOnAvailableforSaleSecuritiesGross
CY2016Q4	us-gaap	Deferred Tax Assets Unrealized Losses On Availablefor Sale Securities Gross DeferredTaxAssetsUnrealizedLossesOnAvailableforSaleSecuritiesGross	1121000
CY2017Q4	us-gaap	Deferred Tax Liabilities Investments DeferredTaxLiabilitiesInvestments
CY2016Q4	us-gaap	Deferred Tax Liabilities Investments DeferredTaxLiabilitiesInvestments	2659000
CY2017Q4	us-gaap	Deferred Tax Liabilities Other DeferredTaxLiabilitiesOther	3758000
CY2016Q4	us-gaap	Deferred Tax Liabilities Other DeferredTaxLiabilitiesOther	3228000
CY2017	us-gaap	Defined Contribution Plan Employer Discretionary Contribution Amount DefinedContributionPlanEmployerDiscretionaryContributionAmount	2300000
CY2016	us-gaap	Defined Contribution Plan Employer Discretionary Contribution Amount DefinedContributionPlanEmployerDiscretionaryContributionAmount	2100000
CY2015	us-gaap	Defined Contribution Plan Employer Discretionary Contribution Amount DefinedContributionPlanEmployerDiscretionaryContributionAmount	2000000
CY2017	us-gaap	Defined Contribution Plan Maximum Annual Contributions Per Employee Percent DefinedContributionPlanMaximumAnnualContributionsPerEmployeePercent	0.75
CY2017Q4	us-gaap	Deposit Liabilities Accrued Interest DepositLiabilitiesAccruedInterest	4400000
CY2016Q4	us-gaap	Deposit Liabilities Accrued Interest DepositLiabilitiesAccruedInterest	2900000
CY2015Q4	us-gaap	Deposit Liabilities Accrued Interest DepositLiabilitiesAccruedInterest	3400000
CY2017Q4	us-gaap	Deposits Deposits	12689893000
CY2016Q4	us-gaap	Deposits Deposits	11674726000
CY2017Q4	us-gaap	Deposits Fair Value Disclosure DepositsFairValueDisclosure	12700674000
CY2016Q4	us-gaap	Deposits Fair Value Disclosure DepositsFairValueDisclosure	11680017000
CY2017Q4	us-gaap	Deposits Money Market Deposits DepositsMoneyMarketDeposits	2248271000
CY2016Q4	us-gaap	Deposits Money Market Deposits DepositsMoneyMarketDeposits	2198938000
CY2017Q4	us-gaap	Deposits Negotiable Order Of Withdrawal Now DepositsNegotiableOrderOfWithdrawalNOW	1410519000
CY2016Q4	us-gaap	Deposits Negotiable Order Of Withdrawal Now DepositsNegotiableOrderOfWithdrawalNOW	1230445000
CY2017Q4	us-gaap	Deposits Savings Deposits DepositsSavingsDeposits	857199000
CY2016Q4	us-gaap	Deposits Savings Deposits DepositsSavingsDeposits	719949000
CY2017	us-gaap	Depreciation Amortization And Accretion Net DepreciationAmortizationAndAccretionNet	6500000
CY2016	us-gaap	Depreciation Amortization And Accretion Net DepreciationAmortizationAndAccretionNet	6800000
CY2015	us-gaap	Depreciation Amortization And Accretion Net DepreciationAmortizationAndAccretionNet	7000000
CY2017	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	7265000
CY2016	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	7490000
CY2015	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	7574000
CY2017Q4	us-gaap	Derivative Asset Notional Amount DerivativeAssetNotionalAmount	514159000
CY2016Q4	us-gaap	Derivative Asset Notional Amount DerivativeAssetNotionalAmount	361526000
CY2017Q4	us-gaap	Derivative Assets DerivativeAssets	5218000
CY2016Q4	us-gaap	Derivative Assets DerivativeAssets	938000
CY2017Q4	us-gaap	Derivative Liabilities DerivativeLiabilities	2699000
CY2016Q4	us-gaap	Derivative Liabilities DerivativeLiabilities	3744000
CY2017Q4	us-gaap	Derivative Liability Fair Value Of Collateral DerivativeLiabilityFairValueOfCollateral	2699000
CY2016Q4	us-gaap	Derivative Liability Fair Value Of Collateral DerivativeLiabilityFairValueOfCollateral	3744000
CY2017Q4	us-gaap	Derivative Liability Notional Amount DerivativeLiabilityNotionalAmount	145399000
CY2016Q4	us-gaap	Derivative Liability Notional Amount DerivativeLiabilityNotionalAmount	119136000
CY2017	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	69888000
CY2015	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	45283000
CY2016	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	59274000
CY2017Q4	us-gaap	Due From Customer Acceptances DueFromCustomerAcceptances	13482000
CY2016Q4	us-gaap	Due From Customer Acceptances DueFromCustomerAcceptances	12182000
CY2017	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	2.19
CY2016	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	2.21
CY2015	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	2
CY2017Q4	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.32
CY2017Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.62
CY2017Q2	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.64
CY2017Q1	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.61
CY2016Q4	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.61
CY2016Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.58
CY2016Q2	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.44
CY2016Q1	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.58
CY2017	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	2.17
CY2016	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	2.19
CY2015	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.98
CY2017Q4	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.32
CY2017Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.61
CY2017Q2	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.64
CY2017Q1	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.61
CY2016Q4	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.60
CY2016Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.58
CY2016Q2	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.44
CY2016Q1	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.57
CY2017	us-gaap	Financing Receivable Allowance For Credit Losses Recovery FinancingReceivableAllowanceForCreditLossesRecovery	10986000
CY2016	us-gaap	Financing Receivable Allowance For Credit Losses Recovery FinancingReceivableAllowanceForCreditLossesRecovery	14556000
CY2017	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.41
CY2016	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.277
	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.271
CY2017	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.35
CY2016	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.35
	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.35
CY2017	us-gaap	Effective Income Tax Rate Reconciliation Nondeductible Expense Share Based Compensation Cost EffectiveIncomeTaxRateReconciliationNondeductibleExpenseShareBasedCompensationCost
CY2016	us-gaap	Effective Income Tax Rate Reconciliation Nondeductible Expense Share Based Compensation Cost EffectiveIncomeTaxRateReconciliationNondeductibleExpenseShareBasedCompensationCost	0.014
	us-gaap	Effective Income Tax Rate Reconciliation Nondeductible Expense Share Based Compensation Cost EffectiveIncomeTaxRateReconciliationNondeductibleExpenseShareBasedCompensationCost
CY2017	us-gaap	Effective Income Tax Rate Reconciliation Other Adjustments EffectiveIncomeTaxRateReconciliationOtherAdjustments	-0.001
CY2016	us-gaap	Effective Income Tax Rate Reconciliation Other Adjustments EffectiveIncomeTaxRateReconciliationOtherAdjustments	-0.002
	us-gaap	Effective Income Tax Rate Reconciliation Other Adjustments EffectiveIncomeTaxRateReconciliationOtherAdjustments	-0.005
CY2017	us-gaap	Effective Income Tax Rate Reconciliation State And Local Income Taxes EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes	0.069
CY2016	us-gaap	Effective Income Tax Rate Reconciliation State And Local Income Taxes EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes	0.071
	us-gaap	Effective Income Tax Rate Reconciliation State And Local Income Taxes EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes	0.066
CY2017	us-gaap	Effective Income Tax Rate Reconciliation Tax Credits EffectiveIncomeTaxRateReconciliationTaxCredits	0.069
CY2016	us-gaap	Effective Income Tax Rate Reconciliation Tax Credits EffectiveIncomeTaxRateReconciliationTaxCredits	0.156
	us-gaap	Effective Income Tax Rate Reconciliation Tax Credits EffectiveIncomeTaxRateReconciliationTaxCredits	0.14
CY2017Q4	us-gaap	Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized	9500000
CY2017	us-gaap	Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized Period For Recognition1 EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1	P2Y
CY2017	us-gaap	Employee Stock Ownership Plan Esop Shares Contributed To Esop EmployeeStockOwnershipPlanESOPSharesContributedToESOP	57014
CY2016	us-gaap	Employee Stock Ownership Plan Esop Shares Contributed To Esop EmployeeStockOwnershipPlanESOPSharesContributedToESOP	103367
CY2015	us-gaap	Employee Stock Ownership Plan Esop Shares Contributed To Esop EmployeeStockOwnershipPlanESOPSharesContributedToESOP	107202
CY2017Q4	us-gaap	Employee Stock Ownership Plan Esop Shares In Esop EmployeeStockOwnershipPlanESOPSharesInESOP	865167
CY2017	us-gaap	Equipment Expense EquipmentExpense	10846000
CY2016	us-gaap	Equipment Expense EquipmentExpense	9777000
CY2015	us-gaap	Equipment Expense EquipmentExpense	9828000
CY2017Q4	us-gaap	Excess Capital ExcessCapital	788767000
CY2016Q4	us-gaap	Excess Capital ExcessCapital	792651000
CY2017Q4	us-gaap	Excess Capital To Risk Weighted Assets ExcessCapitalToRiskWeightedAssets	0.0611
CY2016Q4	us-gaap	Excess Capital To Risk Weighted Assets ExcessCapitalToRiskWeightedAssets	0.0697
CY2017Q4	us-gaap	Excess Tier One Leverage Capital ExcessTierOneLeverageCapital	964676000
CY2016Q4	us-gaap	Excess Tier One Leverage Capital ExcessTierOneLeverageCapital	1030192000
CY2017Q4	us-gaap	Excess Tier One Leverage Capital To Average Assets ExcessTierOneLeverageCapitalToAverageAssets	0.0635
CY2016Q4	us-gaap	Excess Tier One Leverage Capital To Average Assets ExcessTierOneLeverageCapitalToAverageAssets	0.0757
CY2017Q4	us-gaap	Excess Tier One Risk Based Capital ExcessTierOneRiskBasedCapital	797955000
CY2016Q4	us-gaap	Excess Tier One Risk Based Capital ExcessTierOneRiskBasedCapital	892686000
CY2017Q4	us-gaap	Excess Tier One Risk Based Capital To Risk Weighted Assets ExcessTierOneRiskBasedCapitalToRiskWeightedAssets	0.0619
CY2016Q4	us-gaap	Excess Tier One Risk Based Capital To Risk Weighted Assets ExcessTierOneRiskBasedCapitalToRiskWeightedAssets	0.0785
CY2015	us-gaap	Financing Receivable Allowance For Credit Losses Recovery FinancingReceivableAllowanceForCreditLossesRecovery	9370000
CY2017	us-gaap	Financing Receivable Allowance For Credit Losses Write Offs FinancingReceivableAllowanceForCreditLossesWriteOffs	4173000
CY2017	us-gaap	Federal Deposit Insurance Corporation Premium Expense FederalDepositInsuranceCorporationPremiumExpense	10633000
CY2016	us-gaap	Federal Deposit Insurance Corporation Premium Expense FederalDepositInsuranceCorporationPremiumExpense	9712000
CY2015	us-gaap	Federal Deposit Insurance Corporation Premium Expense FederalDepositInsuranceCorporationPremiumExpense	9087000
CY2017Q4	us-gaap	Federal Home Loan Bank Borrowings Fair Value Disclosure FederalHomeLoanBankBorrowingsFairValueDisclosure	429482000
CY2016Q4	us-gaap	Federal Home Loan Bank Borrowings Fair Value Disclosure FederalHomeLoanBankBorrowingsFairValueDisclosure	350062000
CY2017Q4	us-gaap	Federal Home Loan Bank Stock FederalHomeLoanBankStock	23085000
CY2016Q4	us-gaap	Federal Home Loan Bank Stock FederalHomeLoanBankStock	17250000
CY2017	us-gaap	Fees And Commissions Depositor Accounts FeesAndCommissionsDepositorAccounts	5624000
CY2016	us-gaap	Fees And Commissions Depositor Accounts FeesAndCommissionsDepositorAccounts	5478000
CY2015	us-gaap	Fees And Commissions Depositor Accounts FeesAndCommissionsDepositorAccounts	5348000
CY2017Q4	us-gaap	Financial Instruments Owned And Pledged As Collateral At Fair Value FinancialInstrumentsOwnedAndPledgedAsCollateralAtFairValue	100000000
CY2016Q4	us-gaap	Financial Instruments Owned And Pledged As Collateral At Fair Value FinancialInstrumentsOwnedAndPledgedAsCollateralAtFairValue	350000000
CY2016Q4	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	118966000
CY2015Q4	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	138963000
CY2014Q4	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	161420000
CY2017Q4	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	123279000
CY2017Q4	us-gaap	Financing Receivable Allowance For Credit Losses Collectively Evaluated For Impairment FinancingReceivableAllowanceForCreditLossesCollectivelyEvaluatedForImpairment	121145000
CY2016Q4	us-gaap	Financing Receivable Allowance For Credit Losses Collectively Evaluated For Impairment FinancingReceivableAllowanceForCreditLossesCollectivelyEvaluatedForImpairment	116170000
CY2017Q4	us-gaap	Financing Receivable Allowance For Credit Losses Individually Evaluated For Impairment1 FinancingReceivableAllowanceForCreditLossesIndividuallyEvaluatedForImpairment1	2134000
CY2016Q4	us-gaap	Financing Receivable Allowance For Credit Losses Individually Evaluated For Impairment1 FinancingReceivableAllowanceForCreditLossesIndividuallyEvaluatedForImpairment1	2796000
CY2016	us-gaap	Financing Receivable Allowance For Credit Losses Write Offs FinancingReceivableAllowanceForCreditLossesWriteOffs	18903000
CY2015	us-gaap	Financing Receivable Allowance For Credit Losses Write Offs FinancingReceivableAllowanceForCreditLossesWriteOffs	20427000
CY2017Q4	us-gaap	Financing Receivable Collectively Evaluated For Impairment FinancingReceivableCollectivelyEvaluatedForImpairment	12752937000
CY2016Q4	us-gaap	Financing Receivable Collectively Evaluated For Impairment FinancingReceivableCollectivelyEvaluatedForImpairment	11086201000
CY2017Q4	us-gaap	Financing Receivable Individually Evaluated For Impairment FinancingReceivableIndividuallyEvaluatedForImpairment	117353000
CY2016Q4	us-gaap	Financing Receivable Individually Evaluated For Impairment FinancingReceivableIndividuallyEvaluatedForImpairment	115074000
CY2017	us-gaap	Financing Receivable Modifications Number Of Contracts2 FinancingReceivableModificationsNumberOfContracts2	31
CY2016	us-gaap	Financing Receivable Modifications Number Of Contracts2 FinancingReceivableModificationsNumberOfContracts2	30
CY2015	us-gaap	Financing Receivable Modifications Number Of Contracts2 FinancingReceivableModificationsNumberOfContracts2	28
CY2017	us-gaap	Financing Receivable Modifications Post Modification Recorded Investment2 FinancingReceivableModificationsPostModificationRecordedInvestment2	77436000
CY2016	us-gaap	Financing Receivable Modifications Post Modification Recorded Investment2 FinancingReceivableModificationsPostModificationRecordedInvestment2	33905000
CY2015	us-gaap	Financing Receivable Modifications Post Modification Recorded Investment2 FinancingReceivableModificationsPostModificationRecordedInvestment2	19759000
CY2017	us-gaap	Financing Receivable Modifications Pre Modification Recorded Investment2 FinancingReceivableModificationsPreModificationRecordedInvestment2	77741000
CY2016	us-gaap	Financing Receivable Modifications Pre Modification Recorded Investment2 FinancingReceivableModificationsPreModificationRecordedInvestment2	34735000
CY2015	us-gaap	Financing Receivable Modifications Pre Modification Recorded Investment2 FinancingReceivableModificationsPreModificationRecordedInvestment2	19907000
CY2017	us-gaap	Financing Receivable Modifications Subsequent Default Recorded Investment1 FinancingReceivableModificationsSubsequentDefaultRecordedInvestment1	582000
CY2017Q4	us-gaap	Financing Receivable Recorded Investment Current FinancingReceivableRecordedInvestmentCurrent	12771581000
CY2016Q4	us-gaap	Financing Receivable Recorded Investment Current FinancingReceivableRecordedInvestmentCurrent	11074449000
CY2017Q4	us-gaap	Financing Receivable Recorded Investment Nonaccrual Status FinancingReceivableRecordedInvestmentNonaccrualStatus	48787000
CY2016Q4	us-gaap	Financing Receivable Recorded Investment Nonaccrual Status FinancingReceivableRecordedInvestmentNonaccrualStatus	49682000
CY2017Q4	us-gaap	Financing Receivable Recorded Investment Past Due FinancingReceivableRecordedInvestmentPastDue	98709000
CY2016Q4	us-gaap	Financing Receivable Recorded Investment Past Due FinancingReceivableRecordedInvestmentPastDue	126826000
CY2017	us-gaap	Financing Receivables Impaired Troubled Debt Restructuring Write Down FinancingReceivablesImpairedTroubledDebtRestructuringWriteDown	305000
CY2016	us-gaap	Financing Receivables Impaired Troubled Debt Restructuring Write Down FinancingReceivablesImpairedTroubledDebtRestructuringWriteDown	830000
CY2015	us-gaap	Financing Receivables Impaired Troubled Debt Restructuring Write Down FinancingReceivablesImpairedTroubledDebtRestructuringWriteDown	148000
CY2017	us-gaap	Gain Loss On Sale Of Securities Net GainLossOnSaleOfSecuritiesNet	1006000
CY2016	us-gaap	Gain Loss On Sale Of Securities Net GainLossOnSaleOfSecuritiesNet	4898000
CY2015	us-gaap	Gain Loss On Sale Of Securities Net GainLossOnSaleOfSecuritiesNet	-3349000
CY2017	us-gaap	Gain Loss On Sales Of Loans Net GainLossOnSalesOfLoansNet
CY2016	us-gaap	Gain Loss On Sales Of Loans Net GainLossOnSalesOfLoansNet	285000
CY2015	us-gaap	Gain Loss On Sales Of Loans Net GainLossOnSalesOfLoansNet	786000
CY2017	us-gaap	Gains Losses On Sales Of Other Real Estate GainsLossesOnSalesOfOtherRealEstate	2661000
CY2016	us-gaap	Gains Losses On Sales Of Other Real Estate GainsLossesOnSalesOfOtherRealEstate	546000
CY2015	us-gaap	Gains Losses On Sales Of Other Real Estate GainsLossesOnSalesOfOtherRealEstate	2012000
CY2017Q4	us-gaap	Goodwill Goodwill	372189000
CY2016Q4	us-gaap	Goodwill Goodwill	372189000
CY2017	us-gaap	Goodwill Impairment Loss GoodwillImpairmentLoss	0
CY2017	us-gaap	Impaired Financing Receivable Average Recorded Investment ImpairedFinancingReceivableAverageRecordedInvestment	127067000
CY2016	us-gaap	Impaired Financing Receivable Average Recorded Investment ImpairedFinancingReceivableAverageRecordedInvestment	131019000
CY2015	us-gaap	Impaired Financing Receivable Average Recorded Investment ImpairedFinancingReceivableAverageRecordedInvestment	162945000
CY2017	us-gaap	Impaired Financing Receivable Interest Income Accrual Method ImpairedFinancingReceivableInterestIncomeAccrualMethod	3302000
CY2016	us-gaap	Impaired Financing Receivable Interest Income Accrual Method ImpairedFinancingReceivableInterestIncomeAccrualMethod	3462000
CY2015	us-gaap	Impaired Financing Receivable Interest Income Accrual Method ImpairedFinancingReceivableInterestIncomeAccrualMethod	3997000
CY2017Q4	us-gaap	Impaired Financing Receivable Recorded Investment ImpairedFinancingReceivableRecordedInvestment	117353000
CY2016Q4	us-gaap	Impaired Financing Receivable Recorded Investment ImpairedFinancingReceivableRecordedInvestment	115074000
CY2017Q4	us-gaap	Impaired Financing Receivable Related Allowance ImpairedFinancingReceivableRelatedAllowance	2134000
CY2016Q4	us-gaap	Impaired Financing Receivable Related Allowance ImpairedFinancingReceivableRelatedAllowance	2796000
CY2017Q4	us-gaap	Impaired Financing Receivable Unpaid Principal Balance ImpairedFinancingReceivableUnpaidPrincipalBalance	127076000
CY2016Q4	us-gaap	Impaired Financing Receivable Unpaid Principal Balance ImpairedFinancingReceivableUnpaidPrincipalBalance	124444000
CY2017Q4	us-gaap	Impaired Financing Receivable With No Related Allowance Recorded Investment ImpairedFinancingReceivableWithNoRelatedAllowanceRecordedInvestment	83217000
CY2016Q4	us-gaap	Impaired Financing Receivable With No Related Allowance Recorded Investment ImpairedFinancingReceivableWithNoRelatedAllowanceRecordedInvestment	88342000
CY2017Q4	us-gaap	Impaired Financing Receivable With No Related Allowance Unpaid Principal Balance ImpairedFinancingReceivableWithNoRelatedAllowanceUnpaidPrincipalBalance	91430000
CY2016Q4	us-gaap	Impaired Financing Receivable With No Related Allowance Unpaid Principal Balance ImpairedFinancingReceivableWithNoRelatedAllowanceUnpaidPrincipalBalance	95807000
CY2017Q4	us-gaap	Impaired Financing Receivable With Related Allowance Recorded Investment ImpairedFinancingReceivableWithRelatedAllowanceRecordedInvestment	34136000
CY2016Q4	us-gaap	Impaired Financing Receivable With Related Allowance Recorded Investment ImpairedFinancingReceivableWithRelatedAllowanceRecordedInvestment	26732000
CY2017Q4	us-gaap	Impaired Financing Receivable With Related Allowance Unpaid Principal Balance ImpairedFinancingReceivableWithRelatedAllowanceUnpaidPrincipalBalance	35646000
CY2016Q4	us-gaap	Impaired Financing Receivable With Related Allowance Unpaid Principal Balance ImpairedFinancingReceivableWithRelatedAllowanceUnpaidPrincipalBalance	28637000
CY2017	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	298307000
CY2016	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	242200000
CY2015	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	221096000
CY2017Q4	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	77106000
CY2017Q3	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	84909000
CY2017Q2	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	66846000
CY2017Q1	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	69446000
CY2016Q4	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	64360000
CY2016Q3	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	61898000
CY2016Q2	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	47104000
CY2016Q1	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	68838000
CY2017	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	122265000
CY2016	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	67101000
CY2015	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	59987000
	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	59987000
CY2017Q4	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	51166000
CY2017Q3	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	35163000
CY2017Q2	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	15431000
CY2017Q1	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	20505000
CY2016Q4	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	16345000
CY2016Q3	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	15808000
CY2016Q2	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	12273000
CY2016Q1	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	22675000
CY2017Q4	us-gaap	Income Tax Expense Benefit Continuing Operations Adjustment Of Deferred Tax Asset Liability IncomeTaxExpenseBenefitContinuingOperationsAdjustmentOfDeferredTaxAssetLiability	23400000
CY2017Q4	us-gaap	Income Tax Receivable IncomeTaxReceivable	7200000
CY2016Q4	us-gaap	Income Tax Receivable IncomeTaxReceivable	14600000
CY2017	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	104407000
CY2016	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	84770000
	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	77384000
CY2017	us-gaap	Income Tax Reconciliation Nondeductible Expense Share Based Compensation Cost IncomeTaxReconciliationNondeductibleExpenseShareBasedCompensationCost
CY2016	us-gaap	Income Tax Reconciliation Nondeductible Expense Share Based Compensation Cost IncomeTaxReconciliationNondeductibleExpenseShareBasedCompensationCost	3469000
	us-gaap	Income Tax Reconciliation Nondeductible Expense Share Based Compensation Cost IncomeTaxReconciliationNondeductibleExpenseShareBasedCompensationCost
CY2017	us-gaap	Income Tax Reconciliation Other Reconciling Items IncomeTaxReconciliationOtherReconcilingItems	-351000
CY2016	us-gaap	Income Tax Reconciliation Other Reconciling Items IncomeTaxReconciliationOtherReconcilingItems	-487000
	us-gaap	Income Tax Reconciliation Other Reconciling Items IncomeTaxReconciliationOtherReconcilingItems	-1067000
CY2017	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	20616000
CY2016	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	17250000
	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	14656000
CY2017	us-gaap	Income Tax Reconciliation Tax Credits IncomeTaxReconciliationTaxCredits	20656000
CY2016	us-gaap	Income Tax Reconciliation Tax Credits IncomeTaxReconciliationTaxCredits	37901000
	us-gaap	Income Tax Reconciliation Tax Credits IncomeTaxReconciliationTaxCredits	30986000
CY2017	us-gaap	Income Taxes Paid IncomeTaxesPaid	76709000
CY2016	us-gaap	Income Taxes Paid IncomeTaxesPaid	38671000
CY2015	us-gaap	Income Taxes Paid IncomeTaxesPaid	69074000
CY2017	us-gaap	Increase Decrease In Deferred Income Taxes IncreaseDecreaseInDeferredIncomeTaxes	-34554000
CY2016	us-gaap	Increase Decrease In Deferred Income Taxes IncreaseDecreaseInDeferredIncomeTaxes	-15949000
CY2015	us-gaap	Increase Decrease In Deferred Income Taxes IncreaseDecreaseInDeferredIncomeTaxes	-2004000
CY2017	us-gaap	Increase Decrease In Deposits IncreaseDecreaseInDeposits	201224000
CY2016	us-gaap	Increase Decrease In Deposits IncreaseDecreaseInDeposits	1166044000
CY2015	us-gaap	Increase Decrease In Deposits IncreaseDecreaseInDeposits	1305255000
CY2017	us-gaap	Increase Decrease In Federal Funds Purchased And Securities Sold Under Agreements To Repurchase Net IncreaseDecreaseInFederalFundsPurchasedAndSecuritiesSoldUnderAgreementsToRepurchaseNet	-250000000
CY2016	us-gaap	Increase Decrease In Federal Funds Purchased And Securities Sold Under Agreements To Repurchase Net IncreaseDecreaseInFederalFundsPurchasedAndSecuritiesSoldUnderAgreementsToRepurchaseNet	-50000000
CY2015	us-gaap	Increase Decrease In Federal Funds Purchased And Securities Sold Under Agreements To Repurchase Net IncreaseDecreaseInFederalFundsPurchasedAndSecuritiesSoldUnderAgreementsToRepurchaseNet	-50000000
CY2017	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	-25747000
CY2016	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	-13478000
CY2015	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	3429000
CY2017	us-gaap	Increase Decrease In Other Operating Liabilities IncreaseDecreaseInOtherOperatingLiabilities	-2641000
CY2016	us-gaap	Increase Decrease In Other Operating Liabilities IncreaseDecreaseInOtherOperatingLiabilities	-2784000
CY2015	us-gaap	Increase Decrease In Other Operating Liabilities IncreaseDecreaseInOtherOperatingLiabilities	-15506000
CY2017	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	741768
CY2016	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	775500
CY2015	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	731219
CY2017	us-gaap	Information Technology And Data Processing InformationTechnologyAndDataProcessing	11190000
CY2015	us-gaap	Interest Paid Net InterestPaidNet	72870000
CY2017Q4	us-gaap	Interest Rate Derivative Assets At Fair Value InterestRateDerivativeAssetsAtFairValue	5218000
CY2016Q4	us-gaap	Interest Rate Derivative Assets At Fair Value InterestRateDerivativeAssetsAtFairValue	938000
CY2017Q4	us-gaap	Interest Rate Derivative Liabilities At Fair Value InterestRateDerivativeLiabilitiesAtFairValue	2699000
CY2016Q4	us-gaap	Interest Rate Derivative Liabilities At Fair Value InterestRateDerivativeLiabilitiesAtFairValue	3744000
CY2016	us-gaap	Information Technology And Data Processing InformationTechnologyAndDataProcessing	8957000
CY2015	us-gaap	Information Technology And Data Processing InformationTechnologyAndDataProcessing	7698000
CY2017Q4	us-gaap	Intangible Assets Net Excluding Goodwill IntangibleAssetsNetExcludingGoodwill	8062000
CY2016Q4	us-gaap	Intangible Assets Net Excluding Goodwill IntangibleAssetsNetExcludingGoodwill	2949000
CY2017	us-gaap	Interest And Dividend Income Operating InterestAndDividendIncomeOperating	576151000
CY2016	us-gaap	Interest And Dividend Income Operating InterestAndDividendIncomeOperating	499070000
CY2015	us-gaap	Interest And Dividend Income Operating InterestAndDividendIncomeOperating	453706000
CY2017	us-gaap	Interest And Fee Income Loans And Leases InterestAndFeeIncomeLoansAndLeases	549291000
CY2016	us-gaap	Interest And Fee Income Loans And Leases InterestAndFeeIncomeLoansAndLeases	473782000
CY2015	us-gaap	Interest And Fee Income Loans And Leases InterestAndFeeIncomeLoansAndLeases	427621000
CY2017	us-gaap	Interest Expense InterestExpense	80442000
CY2016	us-gaap	Interest Expense InterestExpense	81200000
CY2015	us-gaap	Interest Expense InterestExpense	73964000
CY2017Q4	us-gaap	Interest Expense InterestExpense	22593000
CY2017Q3	us-gaap	Interest Expense InterestExpense	20882000
CY2017Q2	us-gaap	Interest Expense InterestExpense	18277000
CY2017Q1	us-gaap	Interest Expense InterestExpense	18690000
CY2016Q4	us-gaap	Interest Expense InterestExpense	20766000
CY2016Q3	us-gaap	Interest Expense InterestExpense	20331000
CY2016Q2	us-gaap	Interest Expense InterestExpense	20126000
CY2016Q1	us-gaap	Interest Expense InterestExpense	19977000
CY2017	us-gaap	Interest Expense Deposits InterestExpenseDeposits	19076000
CY2016	us-gaap	Interest Expense Deposits InterestExpenseDeposits	16094000
CY2015	us-gaap	Interest Expense Deposits InterestExpenseDeposits	12445000
CY2017	us-gaap	Interest Expense Domestic Deposit Liabilities InterestExpenseDomesticDepositLiabilities	65844000
CY2016	us-gaap	Interest Expense Domestic Deposit Liabilities InterestExpenseDomesticDepositLiabilities	59421000
CY2015	us-gaap	Interest Expense Domestic Deposit Liabilities InterestExpenseDomesticDepositLiabilities	51888000
CY2017	us-gaap	Interest Expense Domestic Deposit Liabilities Demand InterestExpenseDomesticDepositLiabilitiesDemand	2242000
CY2016	us-gaap	Interest Expense Domestic Deposit Liabilities Demand InterestExpenseDomesticDepositLiabilitiesDemand	1740000
CY2015	us-gaap	Interest Expense Domestic Deposit Liabilities Demand InterestExpenseDomesticDepositLiabilitiesDemand	1406000
CY2017	us-gaap	Interest Expense Domestic Deposit Liabilities Money Market InterestExpenseDomesticDepositLiabilitiesMoneyMarket	15062000
CY2016	us-gaap	Interest Expense Domestic Deposit Liabilities Money Market InterestExpenseDomesticDepositLiabilitiesMoneyMarket	13308000
CY2015	us-gaap	Interest Expense Domestic Deposit Liabilities Money Market InterestExpenseDomesticDepositLiabilitiesMoneyMarket	10138000
CY2017	us-gaap	Interest Expense Domestic Deposit Liabilities Savings InterestExpenseDomesticDepositLiabilitiesSavings	1772000
CY2016	us-gaap	Interest Expense Domestic Deposit Liabilities Savings InterestExpenseDomesticDepositLiabilitiesSavings	1046000
CY2015	us-gaap	Interest Expense Domestic Deposit Liabilities Savings InterestExpenseDomesticDepositLiabilitiesSavings	901000
CY2017	us-gaap	Interest Expense Domestic Deposit Liabilities Time Deposit InterestExpenseDomesticDepositLiabilitiesTimeDeposit	46768000
CY2016	us-gaap	Interest Expense Domestic Deposit Liabilities Time Deposit InterestExpenseDomesticDepositLiabilitiesTimeDeposit	43327000
CY2015	us-gaap	Interest Expense Domestic Deposit Liabilities Time Deposit InterestExpenseDomesticDepositLiabilitiesTimeDeposit	39443000
CY2016Q1	us-gaap	Interest Income Operating InterestIncomeOperating	122345000
CY2017	us-gaap	Interest Income Securities Taxable InterestIncomeSecuritiesTaxable	20531000
CY2016	us-gaap	Interest Income Securities Taxable InterestIncomeSecuritiesTaxable	21426000
CY2015	us-gaap	Interest Income Securities Taxable InterestIncomeSecuritiesTaxable	21523000
CY2017	us-gaap	Interest Paid Net InterestPaidNet	81069000
CY2016	us-gaap	Interest Paid Net InterestPaidNet	81793000
CY2017	us-gaap	Interest Expense Federal Home Loan Bank And Federal Reserve Bank Advances Long Term InterestExpenseFederalHomeLoanBankAndFederalReserveBankAdvancesLongTerm	2712000
CY2016	us-gaap	Interest Expense Federal Home Loan Bank And Federal Reserve Bank Advances Long Term InterestExpenseFederalHomeLoanBankAndFederalReserveBankAdvancesLongTerm	659000
CY2015	us-gaap	Interest Expense Federal Home Loan Bank And Federal Reserve Bank Advances Long Term InterestExpenseFederalHomeLoanBankAndFederalReserveBankAdvancesLongTerm	487000
CY2017	us-gaap	Interest Expense Long Term Debt InterestExpenseLongTermDebt	5775000
CY2016	us-gaap	Interest Expense Long Term Debt InterestExpenseLongTermDebt	5791000
CY2015	us-gaap	Interest Expense Long Term Debt InterestExpenseLongTermDebt	5776000
CY2017	us-gaap	Interest Expense Other InterestExpenseOther	87000
CY2016	us-gaap	Interest Expense Other InterestExpenseOther	83000
CY2015	us-gaap	Interest Expense Other InterestExpenseOther	79000
CY2017	us-gaap	Interest Expense Securities Sold Under Agreements To Repurchase InterestExpenseSecuritiesSoldUnderAgreementsToRepurchase	4250000
CY2016	us-gaap	Interest Expense Securities Sold Under Agreements To Repurchase InterestExpenseSecuritiesSoldUnderAgreementsToRepurchase	15329000
CY2015	us-gaap	Interest Expense Securities Sold Under Agreements To Repurchase InterestExpenseSecuritiesSoldUnderAgreementsToRepurchase	15813000
CY2017	us-gaap	Interest Expense Subordinated Notes And Debentures InterestExpenseSubordinatedNotesAndDebentures	4100000
CY2016	us-gaap	Interest Expense Subordinated Notes And Debentures InterestExpenseSubordinatedNotesAndDebentures	3500000
CY2015	us-gaap	Interest Expense Subordinated Notes And Debentures InterestExpenseSubordinatedNotesAndDebentures	3000000
CY2017	us-gaap	Interest Expense Time Deposits InterestExpenseTimeDeposits	46768000
CY2016	us-gaap	Interest Expense Time Deposits InterestExpenseTimeDeposits	43327000
CY2015	us-gaap	Interest Expense Time Deposits InterestExpenseTimeDeposits	39443000
CY2017	us-gaap	Interest Income Deposits With Financial Institutions InterestIncomeDepositsWithFinancialInstitutions	4421000
CY2016	us-gaap	Interest Income Deposits With Financial Institutions InterestIncomeDepositsWithFinancialInstitutions	1763000
CY2015	us-gaap	Interest Income Deposits With Financial Institutions InterestIncomeDepositsWithFinancialInstitutions	1398000
CY2017	us-gaap	Interest Income Expense After Provision For Loan Loss InterestIncomeExpenseAfterProvisionForLoanLoss	498209000
CY2016	us-gaap	Interest Income Expense After Provision For Loan Loss InterestIncomeExpenseAfterProvisionForLoanLoss	433520000
CY2015	us-gaap	Interest Income Expense After Provision For Loan Loss InterestIncomeExpenseAfterProvisionForLoanLoss	391142000
CY2017Q4	us-gaap	Interest Income Expense After Provision For Loan Loss InterestIncomeExpenseAfterProvisionForLoanLoss	133047000
CY2017Q3	us-gaap	Interest Income Expense After Provision For Loan Loss InterestIncomeExpenseAfterProvisionForLoanLoss	133196000
CY2017Q2	us-gaap	Interest Income Expense After Provision For Loan Loss InterestIncomeExpenseAfterProvisionForLoanLoss	117352000
CY2017Q1	us-gaap	Interest Income Expense After Provision For Loan Loss InterestIncomeExpenseAfterProvisionForLoanLoss	114614000
CY2016Q4	us-gaap	Interest Income Expense After Provision For Loan Loss InterestIncomeExpenseAfterProvisionForLoanLoss	109902000
CY2016Q3	us-gaap	Interest Income Expense After Provision For Loan Loss InterestIncomeExpenseAfterProvisionForLoanLoss	103824000
CY2016Q2	us-gaap	Interest Income Expense After Provision For Loan Loss InterestIncomeExpenseAfterProvisionForLoanLoss	106926000
CY2016Q1	us-gaap	Interest Income Expense After Provision For Loan Loss InterestIncomeExpenseAfterProvisionForLoanLoss	112868000
CY2017	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	495709000
CY2016	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	417870000
CY2015	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	379742000
CY2017Q4	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	133047000
CY2017Q3	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	133196000
CY2017Q2	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	117352000
CY2017Q1	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	112114000
CY2016Q4	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	109902000
CY2016Q3	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	103824000
CY2016Q2	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	101776000
CY2016Q1	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	102368000
CY2017	us-gaap	Interest Income Federal Funds Sold And Securities Purchased Under Agreements To Resell InterestIncomeFederalFundsSoldAndSecuritiesPurchasedUnderAgreementsToResell	110000
CY2016	us-gaap	Interest Income Federal Funds Sold And Securities Purchased Under Agreements To Resell InterestIncomeFederalFundsSoldAndSecuritiesPurchasedUnderAgreementsToResell
CY2015	us-gaap	Interest Income Federal Funds Sold And Securities Purchased Under Agreements To Resell InterestIncomeFederalFundsSoldAndSecuritiesPurchasedUnderAgreementsToResell
CY2017Q4	us-gaap	Interest Income Operating InterestIncomeOperating	155640000
CY2017Q3	us-gaap	Interest Income Operating InterestIncomeOperating	154078000
CY2017Q2	us-gaap	Interest Income Operating InterestIncomeOperating	135629000
CY2017Q1	us-gaap	Interest Income Operating InterestIncomeOperating	130804000
CY2016Q4	us-gaap	Interest Income Operating InterestIncomeOperating	130668000
CY2016Q3	us-gaap	Interest Income Operating InterestIncomeOperating	124155000
CY2016Q2	us-gaap	Interest Income Operating InterestIncomeOperating	121902000
CY2017Q4	us-gaap	Operating Leases Future Minimum Payments Receivable In Five Years OperatingLeasesFutureMinimumPaymentsReceivableInFiveYears	25000
CY2017Q4	us-gaap	Operating Leases Future Minimum Payments Receivable In Four Years OperatingLeasesFutureMinimumPaymentsReceivableInFourYears	49000
CY2017Q4	us-gaap	Operating Leases Future Minimum Payments Receivable In Three Years OperatingLeasesFutureMinimumPaymentsReceivableInThreeYears	91000
CY2017Q4	us-gaap	Operating Leases Future Minimum Payments Receivable In Two Years OperatingLeasesFutureMinimumPaymentsReceivableInTwoYears	186000
CY2017	us-gaap	Operating Leases Income Statement Sublease Revenue OperatingLeasesIncomeStatementSubleaseRevenue	400000
CY2016	us-gaap	Operating Leases Income Statement Sublease Revenue OperatingLeasesIncomeStatementSubleaseRevenue	400000
CY2015	us-gaap	Operating Leases Income Statement Sublease Revenue OperatingLeasesIncomeStatementSubleaseRevenue	300000
CY2017Q4	us-gaap	Other Assets OtherAssets	167491000
CY2016Q4	us-gaap	Other Assets OtherAssets	117902000
CY2017Q4	us-gaap	Interest Receivable InterestReceivable	45307000
CY2016Q4	us-gaap	Interest Receivable InterestReceivable	37299000
CY2017Q4	us-gaap	Investment In Federal Home Loan Bank Stock Fair Value Disclosure InvestmentInFederalHomeLoanBankStockFairValueDisclosure	23085000
CY2016Q4	us-gaap	Investment In Federal Home Loan Bank Stock Fair Value Disclosure InvestmentInFederalHomeLoanBankStockFairValueDisclosure	17250000
CY2014Q2	us-gaap	Junior Subordinated Notes JuniorSubordinatedNotes	119100000
CY2017Q4	us-gaap	Junior Subordinated Notes JuniorSubordinatedNotes	119136000
CY2017	us-gaap	Lease And Rental Expense LeaseAndRentalExpense	12000000
CY2016	us-gaap	Lease And Rental Expense LeaseAndRentalExpense	10200000
CY2015	us-gaap	Lease And Rental Expense LeaseAndRentalExpense	9300000
CY2017Q4	us-gaap	Liabilities Liabilities	13666882000
CY2016Q4	us-gaap	Liabilities Liabilities	12692230000
CY2017Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	15640186000
CY2016Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	14520769000
CY2017Q4	us-gaap	Liabilities Fair Value Disclosure LiabilitiesFairValueDisclosure	3161000
CY2016Q4	us-gaap	Liabilities Fair Value Disclosure LiabilitiesFairValueDisclosure	6997000
CY2017Q4	us-gaap	Loans And Leases Receivable Allowance LoansAndLeasesReceivableAllowance	123279000
CY2016Q4	us-gaap	Loans And Leases Receivable Allowance LoansAndLeasesReceivableAllowance	118966000
CY2017Q4	us-gaap	Loans And Leases Receivable Deferred Income LoansAndLeasesReceivableDeferredIncome	3245000
CY2016Q4	us-gaap	Loans And Leases Receivable Deferred Income LoansAndLeasesReceivableDeferredIncome	4994000
CY2017Q4	us-gaap	Loans And Leases Receivable Gross Carrying Amount LoansAndLeasesReceivableGrossCarryingAmount	12870290000
CY2016Q4	us-gaap	Loans And Leases Receivable Gross Carrying Amount LoansAndLeasesReceivableGrossCarryingAmount	11201275000
CY2017Q4	us-gaap	Loans And Leases Receivable Impaired Commitment To Lend LoansAndLeasesReceivableImpairedCommitmentToLend	0
CY2017Q4	us-gaap	Loans And Leases Receivable Net Reported Amount LoansAndLeasesReceivableNetReportedAmount	12743766000
CY2016Q4	us-gaap	Loans And Leases Receivable Net Reported Amount LoansAndLeasesReceivableNetReportedAmount	11077315000
CY2016Q4	us-gaap	Loans And Leases Receivable Related Parties LoansAndLeasesReceivableRelatedParties	51327000
CY2015Q4	us-gaap	Loans And Leases Receivable Related Parties LoansAndLeasesReceivableRelatedParties	91620000
CY2017Q4	us-gaap	Loans And Leases Receivable Related Parties LoansAndLeasesReceivableRelatedParties	66593000
CY2017	us-gaap	Loans And Leases Receivable Related Parties Additions LoansAndLeasesReceivableRelatedPartiesAdditions	53584000
CY2016	us-gaap	Loans And Leases Receivable Related Parties Additions LoansAndLeasesReceivableRelatedPartiesAdditions	62206000
CY2017	us-gaap	Loans And Leases Receivable Related Parties Proceeds LoansAndLeasesReceivableRelatedPartiesProceeds	38318000
CY2016	us-gaap	Loans And Leases Receivable Related Parties Proceeds LoansAndLeasesReceivableRelatedPartiesProceeds	102499000
CY2017Q4	us-gaap	Loans Held For Sale Fair Value Disclosure LoansHeldForSaleFairValueDisclosure	8000000
CY2016Q4	us-gaap	Loans Held For Sale Fair Value Disclosure LoansHeldForSaleFairValueDisclosure	7500000
CY2017Q4	us-gaap	Loans Receivable Fair Value Disclosure LoansReceivableFairValueDisclosure	12663049000
CY2016Q4	us-gaap	Loans Receivable Fair Value Disclosure LoansReceivableFairValueDisclosure	11006344000
CY2017Q4	us-gaap	Loans Receivable Held For Sale Net Not Part Of Disposal Group LoansReceivableHeldForSaleNetNotPartOfDisposalGroup	8000000
CY2016Q4	us-gaap	Loans Receivable Held For Sale Net Not Part Of Disposal Group LoansReceivableHeldForSaleNetNotPartOfDisposalGroup	7500000
CY2017Q4	us-gaap	Long Term Debt LongTermDebt	194136000
CY2016Q4	us-gaap	Long Term Debt LongTermDebt	119136000
CY2017Q4	us-gaap	Long Term Debt Fair Value LongTermDebtFairValue	141865000
CY2016Q4	us-gaap	Long Term Debt Fair Value LongTermDebtFairValue	63169000
CY2017Q4	us-gaap	Margin Deposit Assets MarginDepositAssets	4500000
CY2017	us-gaap	Marketable Securities Gain Loss MarketableSecuritiesGainLoss	1006000
CY2016	us-gaap	Marketable Securities Gain Loss MarketableSecuritiesGainLoss	5104000
CY2015	us-gaap	Marketable Securities Gain Loss MarketableSecuritiesGainLoss	526000
CY2017	us-gaap	Marketing Expense MarketingExpense	6200000
CY2016	us-gaap	Marketing Expense MarketingExpense	5092000
CY2015	us-gaap	Marketing Expense MarketingExpense	4926000
CY2017	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	4830000
CY2016	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	1087164000
CY2015	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	1004174000
CY2017	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-224665000
CY2016	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-1283679000
CY2015	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-1177571000
CY2017	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	248874000
CY2016	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	234402000
CY2015	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	176697000
CY2017	us-gaap	Net Income Loss NetIncomeLoss	176042000
CY2016	us-gaap	Net Income Loss NetIncomeLoss	175099000
CY2015	us-gaap	Net Income Loss NetIncomeLoss	161109000
CY2017Q4	us-gaap	Net Income Loss NetIncomeLoss	25940000
CY2017Q3	us-gaap	Net Income Loss NetIncomeLoss	49746000
CY2017Q2	us-gaap	Net Income Loss NetIncomeLoss	51415000
CY2017Q1	us-gaap	Net Income Loss NetIncomeLoss	48941000
CY2016Q4	us-gaap	Net Income Loss NetIncomeLoss	48015000
CY2016Q3	us-gaap	Net Income Loss NetIncomeLoss	46090000
CY2016Q2	us-gaap	Net Income Loss NetIncomeLoss	34831000
CY2016Q1	us-gaap	Net Income Loss NetIncomeLoss	46163000
CY2017	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	176042000
CY2016	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	175099000
CY2015	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	161109000
CY2017	us-gaap	Net Income Loss Available To Common Stockholders Diluted NetIncomeLossAvailableToCommonStockholdersDiluted	176042000
CY2016	us-gaap	Net Income Loss Available To Common Stockholders Diluted NetIncomeLossAvailableToCommonStockholdersDiluted	175099000
CY2015	us-gaap	Net Income Loss Available To Common Stockholders Diluted NetIncomeLossAvailableToCommonStockholdersDiluted	161109000
CY2017Q4	us-gaap	Noninterest Bearing Deposit Liabilities NoninterestBearingDepositLiabilities	2783127000
CY2016Q4	us-gaap	Noninterest Bearing Deposit Liabilities NoninterestBearingDepositLiabilities	2478107000
CY2017	us-gaap	Noninterest Expense NoninterestExpense	236199000
CY2016	us-gaap	Noninterest Expense NoninterestExpense	224690000
CY2015	us-gaap	Noninterest Expense NoninterestExpense	202720000
CY2017Q4	us-gaap	Noninterest Expense NoninterestExpense	66407000
CY2017Q3	us-gaap	Noninterest Expense NoninterestExpense	61248000
CY2017Q2	us-gaap	Noninterest Expense NoninterestExpense	56658000
CY2017Q1	us-gaap	Noninterest Expense NoninterestExpense	51886000
CY2016Q4	us-gaap	Noninterest Expense NoninterestExpense	53503000
CY2016Q3	us-gaap	Noninterest Expense NoninterestExpense	50737000
CY2016Q2	us-gaap	Noninterest Expense NoninterestExpense	68879000
CY2016Q1	us-gaap	Noninterest Expense NoninterestExpense	51571000
CY2017	us-gaap	Noninterest Income NoninterestIncome	36297000
CY2016	us-gaap	Noninterest Income NoninterestIncome	33370000
CY2015	us-gaap	Noninterest Income NoninterestIncome	32674000
CY2017Q4	us-gaap	Noninterest Income NoninterestIncome	10466000
CY2017Q3	us-gaap	Noninterest Income NoninterestIncome	12961000
CY2017Q2	us-gaap	Noninterest Income NoninterestIncome	6152000
CY2017Q1	us-gaap	Noninterest Income NoninterestIncome	6718000
CY2016Q4	us-gaap	Noninterest Income NoninterestIncome	7961000
CY2016Q3	us-gaap	Noninterest Income NoninterestIncome	8811000
CY2016Q2	us-gaap	Noninterest Income NoninterestIncome	9057000
CY2016Q1	us-gaap	Noninterest Income NoninterestIncome	7541000
CY2017	us-gaap	Noninterest Income Other Operating Income NoninterestIncomeOtherOperatingIncome	19179000
CY2016	us-gaap	Noninterest Income Other Operating Income NoninterestIncomeOtherOperatingIncome	18055000
CY2015	us-gaap	Noninterest Income Other Operating Income NoninterestIncomeOtherOperatingIncome	25130000
CY2017	us-gaap	Number Of Operating Segments NumberOfOperatingSegments	1
CY2017	us-gaap	Number Of Reportable Segments NumberOfReportableSegments	2
CY2017	us-gaap	Occupancy Net OccupancyNet	20429000
CY2016	us-gaap	Occupancy Net OccupancyNet	18315000
CY2015	us-gaap	Occupancy Net OccupancyNet	17018000
CY2017Q4	us-gaap	Operating Leases Future Minimum Payments Due OperatingLeasesFutureMinimumPaymentsDue	40106000
CY2017Q4	us-gaap	Operating Leases Future Minimum Payments Due Current OperatingLeasesFutureMinimumPaymentsDueCurrent	10076000
CY2017Q4	us-gaap	Operating Leases Future Minimum Payments Due In Five Years OperatingLeasesFutureMinimumPaymentsDueInFiveYears	4012000
CY2017Q4	us-gaap	Operating Leases Future Minimum Payments Due In Four Years OperatingLeasesFutureMinimumPaymentsDueInFourYears	4996000
CY2017Q4	us-gaap	Operating Leases Future Minimum Payments Due In Three Years OperatingLeasesFutureMinimumPaymentsDueInThreeYears	5839000
CY2017Q4	us-gaap	Operating Leases Future Minimum Payments Due In Two Years OperatingLeasesFutureMinimumPaymentsDueInTwoYears	7720000
CY2017Q4	us-gaap	Operating Leases Future Minimum Payments Due Thereafter OperatingLeasesFutureMinimumPaymentsDueThereafter	7463000
CY2017Q4	us-gaap	Operating Leases Future Minimum Payments Receivable OperatingLeasesFutureMinimumPaymentsReceivable	688000
CY2017Q4	us-gaap	Operating Leases Future Minimum Payments Receivable Current OperatingLeasesFutureMinimumPaymentsReceivableCurrent	337000
CY2016Q4	us-gaap	Other Real Estate And Foreclosed Assets OtherRealEstateAndForeclosedAssets	20070000
CY2017	us-gaap	Other Than Temporary Impairment Losses Investments Availableforsale Securities OtherThanTemporaryImpairmentLossesInvestmentsAvailableforsaleSecurities	0
CY2017	us-gaap	Payments For Origination And Purchases Of Loans Held For Sale PaymentsForOriginationAndPurchasesOfLoansHeldForSale
CY2016	us-gaap	Payments For Origination And Purchases Of Loans Held For Sale PaymentsForOriginationAndPurchasesOfLoansHeldForSale	12665000
CY2015	us-gaap	Payments For Origination And Purchases Of Loans Held For Sale PaymentsForOriginationAndPurchasesOfLoansHeldForSale	37447000
CY2017	us-gaap	Payments For Proceeds From Federal Reserve Bank Stock PaymentsForProceedsFromFederalReserveBankStock	-8733000
CY2016	us-gaap	Payments For Proceeds From Federal Reserve Bank Stock PaymentsForProceedsFromFederalReserveBankStock
CY2015	us-gaap	Payments For Proceeds From Federal Reserve Bank Stock PaymentsForProceedsFromFederalReserveBankStock
CY2017	us-gaap	Payments For Proceeds From Loans And Leases PaymentsForProceedsFromLoansAndLeases	963858000
CY2016	us-gaap	Payments For Proceeds From Loans And Leases PaymentsForProceedsFromLoansAndLeases	1051952000
CY2017	us-gaap	Payments To Acquire Available For Sale Securities PaymentsToAcquireAvailableForSaleSecurities	339814000
CY2016	us-gaap	Payments To Acquire Available For Sale Securities PaymentsToAcquireAvailableForSaleSecurities	941327000
CY2015	us-gaap	Payments To Acquire Available For Sale Securities PaymentsToAcquireAvailableForSaleSecurities	295497000
CY2017	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	118392000
CY2016	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired
CY2015	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	-6572000
CY2017Q4	us-gaap	Other Commitment OtherCommitment	2534559000
CY2016Q4	us-gaap	Other Commitment OtherCommitment	2174995000
CY2017	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	1204000
CY2016	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	4711000
CY2015	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-2857000
CY2015	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-2857000
CY2016	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	4711000
CY2017	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	1204000
CY2017	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax	583000
CY2016	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax	2839000
CY2015	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax	-1941000
CY2017	us-gaap	Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodNetOfTax	719000
CY2016	us-gaap	Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodNetOfTax	825000
CY2015	us-gaap	Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodNetOfTax	-598000
CY2017	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax	1068000
CY2016	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax	6725000
CY2015	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax	-4200000
CY2017Q4	us-gaap	Other Liabilities OtherLiabilities	186486000
CY2016Q4	us-gaap	Other Liabilities OtherLiabilities	168524000
CY2017	us-gaap	Other Noninterest Expense OtherNoninterestExpense	16390000
CY2016	us-gaap	Other Noninterest Expense OtherNoninterestExpense	14994000
CY2015	us-gaap	Other Noninterest Expense OtherNoninterestExpense	13685000
CY2017Q4	us-gaap	Other Real Estate And Foreclosed Assets OtherRealEstateAndForeclosedAssets	9442000
CY2015	us-gaap	Payments For Proceeds From Loans And Leases PaymentsForProceedsFromLoansAndLeases	829501000
CY2017	us-gaap	Payments For Proceeds From Short Term Investments PaymentsForProceedsFromShortTermInvestments	-796322000
CY2016	us-gaap	Payments For Proceeds From Short Term Investments PaymentsForProceedsFromShortTermInvestments	430187000
CY2015	us-gaap	Payments For Proceeds From Short Term Investments PaymentsForProceedsFromShortTermInvestments	47266000
CY2017	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock
CY2016	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	54441000
CY2015	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	59412000
CY2017	us-gaap	Payments Of Dividends PaymentsOfDividends	69888000
CY2016	us-gaap	Payments Of Dividends PaymentsOfDividends	59274000
CY2015	us-gaap	Payments Of Dividends PaymentsOfDividends	45283000
CY2017	us-gaap	Payments Related To Tax Withholding For Share Based Compensation PaymentsRelatedToTaxWithholdingForShareBasedCompensation	5128000
CY2016	us-gaap	Payments Related To Tax Withholding For Share Based Compensation PaymentsRelatedToTaxWithholdingForShareBasedCompensation	103000
CY2015	us-gaap	Payments Related To Tax Withholding For Share Based Compensation PaymentsRelatedToTaxWithholdingForShareBasedCompensation	227000
CY2017	us-gaap	Payments To Acquire Federal Home Loan Bank Stock PaymentsToAcquireFederalHomeLoanBankStock	8160000
CY2016	us-gaap	Payments To Acquire Federal Home Loan Bank Stock PaymentsToAcquireFederalHomeLoanBankStock	1650000
CY2015	us-gaap	Payments To Acquire Federal Home Loan Bank Stock PaymentsToAcquireFederalHomeLoanBankStock
CY2017	us-gaap	Payments To Acquire Mortgage Backed Securities Mbs Categorized As Available For Sale PaymentsToAcquireMortgageBackedSecuritiesMBSCategorizedAsAvailableForSale	267760000
CY2016	us-gaap	Payments To Acquire Mortgage Backed Securities Mbs Categorized As Available For Sale PaymentsToAcquireMortgageBackedSecuritiesMBSCategorizedAsAvailableForSale
CY2015	us-gaap	Payments To Acquire Mortgage Backed Securities Mbs Categorized As Available For Sale PaymentsToAcquireMortgageBackedSecuritiesMBSCategorizedAsAvailableForSale	1280870000
CY2017	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	3188000
CY2016	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	3523000
CY2015	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	3518000
CY2017	us-gaap	Proceeds From Federal Home Loan Bank Borrowings ProceedsFromFederalHomeLoanBankBorrowings	4823000000
CY2016	us-gaap	Proceeds From Federal Home Loan Bank Borrowings ProceedsFromFederalHomeLoanBankBorrowings	3555000000
CY2015	us-gaap	Proceeds From Federal Home Loan Bank Borrowings ProceedsFromFederalHomeLoanBankBorrowings	5092000000
CY2017	us-gaap	Proceeds From Issuance Of Common Stock Dividend Reinvestment Plan ProceedsFromIssuanceOfCommonStockDividendReinvestmentPlan	2528000
CY2016	us-gaap	Proceeds From Issuance Of Common Stock Dividend Reinvestment Plan ProceedsFromIssuanceOfCommonStockDividendReinvestmentPlan	2277000
CY2015	us-gaap	Proceeds From Issuance Of Common Stock Dividend Reinvestment Plan ProceedsFromIssuanceOfCommonStockDividendReinvestmentPlan	4175000
CY2017	us-gaap	Proceeds From Issuance Of Long Term Debt ProceedsFromIssuanceOfLongTermDebt	75000000
CY2016	us-gaap	Proceeds From Issuance Of Long Term Debt ProceedsFromIssuanceOfLongTermDebt
CY2015	us-gaap	Proceeds From Issuance Of Long Term Debt ProceedsFromIssuanceOfLongTermDebt
CY2017	us-gaap	Proceeds From Maturities Prepayments And Calls Of Available For Sale Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities	490950000
CY2016	us-gaap	Proceeds From Maturities Prepayments And Calls Of Available For Sale Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities	460000000
CY2015	us-gaap	Proceeds From Maturities Prepayments And Calls Of Available For Sale Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities	165000000
CY2017	us-gaap	Proceeds From Maturities Prepayments And Calls Of Mortgage Backed Securities Mbs ProceedsFromMaturitiesPrepaymentsAndCallsOfMortgageBackedSecuritiesMBS	71600000
CY2016	us-gaap	Proceeds From Maturities Prepayments And Calls Of Mortgage Backed Securities Mbs ProceedsFromMaturitiesPrepaymentsAndCallsOfMortgageBackedSecuritiesMBS	153000000
CY2017	us-gaap	Proceeds From Sale Of Available For Sale Securities ProceedsFromSaleOfAvailableForSaleSecurities	111704000
CY2016	us-gaap	Proceeds From Sale Of Available For Sale Securities ProceedsFromSaleOfAvailableForSaleSecurities	294000
CY2015	us-gaap	Proceeds From Sale Of Available For Sale Securities ProceedsFromSaleOfAvailableForSaleSecurities	385234000
CY2017	us-gaap	Proceeds From Sale Of Federal Home Loan Bank Stock ProceedsFromSaleOfFederalHomeLoanBankStock	13482000
CY2016	us-gaap	Proceeds From Sale Of Federal Home Loan Bank Stock ProceedsFromSaleOfFederalHomeLoanBankStock	1650000
CY2015	us-gaap	Proceeds From Sale Of Federal Home Loan Bank Stock ProceedsFromSaleOfFederalHomeLoanBankStock	13535000
CY2017	us-gaap	Proceeds From Sale Of Loans Receivable ProceedsFromSaleOfLoansReceivable	7500000
CY2016	us-gaap	Proceeds From Sale Of Loans Receivable ProceedsFromSaleOfLoansReceivable	20079000
CY2015	us-gaap	Proceeds From Sale Of Loans Receivable ProceedsFromSaleOfLoansReceivable	32530000
CY2017	us-gaap	Proceeds From Sale Of Mortgage Backed Securities Mbs Categorized As Available For Sale ProceedsFromSaleOfMortgageBackedSecuritiesMBSCategorizedAsAvailableForSale	0
CY2016	us-gaap	Proceeds From Sale Of Mortgage Backed Securities Mbs Categorized As Available For Sale ProceedsFromSaleOfMortgageBackedSecuritiesMBSCategorizedAsAvailableForSale	605200000
CY2017	us-gaap	Proceeds From Sale Of Other Real Estate ProceedsFromSaleOfOtherRealEstate	18357000
CY2016	us-gaap	Proceeds From Sale Of Other Real Estate ProceedsFromSaleOfOtherRealEstate	7699000
CY2015	us-gaap	Proceeds From Sale Of Other Real Estate ProceedsFromSaleOfOtherRealEstate	12154000
CY2017	us-gaap	Proceeds From Sale Of Property Plant And Equipment ProceedsFromSaleOfPropertyPlantAndEquipment	5598000
CY2016	us-gaap	Proceeds From Sale Of Property Plant And Equipment ProceedsFromSaleOfPropertyPlantAndEquipment	12000
CY2015	us-gaap	Proceeds From Sale Of Property Plant And Equipment ProceedsFromSaleOfPropertyPlantAndEquipment	602000
CY2017	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	1094000
CY2016	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	7661000
CY2015	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	5014000
CY2017	us-gaap	Professional Fees ProfessionalFees	20439000
CY2016	us-gaap	Professional Fees ProfessionalFees	18686000
CY2015	us-gaap	Professional Fees ProfessionalFees	17316000
CY2017Q4	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	191015000
CY2016Q4	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	188821000
CY2017Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	103064000
CY2016Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	105607000
CY2016Q4	us-gaap	Risk Weighted Assets RiskWeightedAssets	11368663000
CY2017	us-gaap	Salaries Wages And Officers Compensation SalariesWagesAndOfficersCompensation	109458000
CY2016	us-gaap	Salaries Wages And Officers Compensation SalariesWagesAndOfficersCompensation	97348000
CY2015	us-gaap	Salaries Wages And Officers Compensation SalariesWagesAndOfficersCompensation	89960000
CY2017	us-gaap	Provision For Loan And Lease Losses ProvisionForLoanAndLeaseLosses	-2500000
CY2016	us-gaap	Provision For Loan And Lease Losses ProvisionForLoanAndLeaseLosses	-15650000
CY2015	us-gaap	Provision For Loan And Lease Losses ProvisionForLoanAndLeaseLosses	-11400000
CY2017	us-gaap	Provision For Loan Lease And Other Losses ProvisionForLoanLeaseAndOtherLosses	-2500000
CY2016	us-gaap	Provision For Loan Lease And Other Losses ProvisionForLoanLeaseAndOtherLosses	-15650000
CY2015	us-gaap	Provision For Loan Lease And Other Losses ProvisionForLoanLeaseAndOtherLosses	-11400000
CY2017Q4	us-gaap	Provision For Loan Lease And Other Losses ProvisionForLoanLeaseAndOtherLosses
CY2017Q3	us-gaap	Provision For Loan Lease And Other Losses ProvisionForLoanLeaseAndOtherLosses
CY2017Q2	us-gaap	Provision For Loan Lease And Other Losses ProvisionForLoanLeaseAndOtherLosses
CY2017Q1	us-gaap	Provision For Loan Lease And Other Losses ProvisionForLoanLeaseAndOtherLosses	-2500000
CY2016Q4	us-gaap	Provision For Loan Lease And Other Losses ProvisionForLoanLeaseAndOtherLosses
CY2016Q3	us-gaap	Provision For Loan Lease And Other Losses ProvisionForLoanLeaseAndOtherLosses
CY2016Q2	us-gaap	Provision For Loan Lease And Other Losses ProvisionForLoanLeaseAndOtherLosses	-5150000
CY2016Q1	us-gaap	Provision For Loan Lease And Other Losses ProvisionForLoanLeaseAndOtherLosses	-10500000
CY2017	us-gaap	Repayments Of Federal Home Loan Bank Borrowings RepaymentsOfFederalHomeLoanBankBorrowings	4773000000
CY2016	us-gaap	Repayments Of Federal Home Loan Bank Borrowings RepaymentsOfFederalHomeLoanBankBorrowings	3480000000
CY2015	us-gaap	Repayments Of Federal Home Loan Bank Borrowings RepaymentsOfFederalHomeLoanBankBorrowings	5242000000
CY2017Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	1281639000
CY2016Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	1175485000
CY2017Q4	us-gaap	Risk Weighted Assets RiskWeightedAssets	12901161000
CY2017Q4	us-gaap	Securities Loaned Or Sold Under Agreements To Repurchase Fair Value Disclosure SecuritiesLoanedOrSoldUnderAgreementsToRepurchaseFairValueDisclosure	100163000
CY2016Q4	us-gaap	Securities Loaned Or Sold Under Agreements To Repurchase Fair Value Disclosure SecuritiesLoanedOrSoldUnderAgreementsToRepurchaseFairValueDisclosure	351989000
CY2017Q4	us-gaap	Securities Sold Under Agreements To Repurchase SecuritiesSoldUnderAgreementsToRepurchase	100000000
CY2016Q4	us-gaap	Securities Sold Under Agreements To Repurchase SecuritiesSoldUnderAgreementsToRepurchase	350000000
CY2017Q4	us-gaap	Servicing Asset ServicingAsset	384300000
CY2017	us-gaap	Share Based Compensation ShareBasedCompensation	5734000
CY2016	us-gaap	Share Based Compensation ShareBasedCompensation	4963000
CY2015	us-gaap	Share Based Compensation ShareBasedCompensation	4950000
CY2017Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber	35880
CY2017Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice	23.37
CY2017	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercises In Period Total Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue	663000
CY2016	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercises In Period Total Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue	4000000
CY2015	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresInPeriod	1087154
CY2016	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresInPeriod	620670
CY2014Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue	1388000
CY2015Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue	3268000
CY2016Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue	1211000
CY2017Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue	675000
CY2014Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	2332904
CY2015Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	1031170
CY2016Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	82670
CY2017Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	35880
CY2014Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	32.34
CY2015Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	31.27
CY2016Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	23.37
CY2017Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	23.37
CY2015	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Exercises In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice	23.37
CY2016	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Exercises In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice	23.37
CY2017	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Exercises In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice	23.37
CY2015	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Forfeitures In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsForfeituresInPeriodWeightedAverageExercisePrice	35.13
CY2016	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Forfeitures In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsForfeituresInPeriodWeightedAverageExercisePrice	36.50
CY2017Q4	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Exercisable Intrinsic Value1 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1	675000
CY2017	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Exercisable Weighted Average Remaining Contractual Term1 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableWeightedAverageRemainingContractualTerm1	P36D
CY2014	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Outstanding Weighted Average Remaining Contractual Term2 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2	P1Y73D
CY2015	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Outstanding Weighted Average Remaining Contractual Term2 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2	P328D
CY2016	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Outstanding Weighted Average Remaining Contractual Term2 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2	P1Y36D
CY2017	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Outstanding Weighted Average Remaining Contractual Term2 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2	P36D
CY2017Q4	us-gaap	Short Term Investments ShortTermInvestments	292745000
CY2016Q4	us-gaap	Short Term Investments ShortTermInvestments	967067000
CY2017Q4	us-gaap	Statutory Accounting Practices Statutory Amount Available For Dividend Payments With Regulatory Approval StatutoryAccountingPracticesStatutoryAmountAvailableForDividendPaymentsWithRegulatoryApproval	39300000
CY2017	us-gaap	Stock Issued During Period Shares Dividend Reinvestment Plan StockIssuedDuringPeriodSharesDividendReinvestmentPlan	65044
CY2016	us-gaap	Stock Issued During Period Shares Dividend Reinvestment Plan StockIssuedDuringPeriodSharesDividendReinvestmentPlan	72231
CY2015	us-gaap	Stock Issued During Period Shares Dividend Reinvestment Plan StockIssuedDuringPeriodSharesDividendReinvestmentPlan	148582
CY2017	us-gaap	Stock Issued During Period Shares Employee Stock Ownership Plan StockIssuedDuringPeriodSharesEmployeeStockOwnershipPlan	16458
CY2016	us-gaap	Stock Issued During Period Shares Employee Stock Ownership Plan StockIssuedDuringPeriodSharesEmployeeStockOwnershipPlan	19377
CY2015	us-gaap	Stock Issued During Period Shares Employee Stock Ownership Plan StockIssuedDuringPeriodSharesEmployeeStockOwnershipPlan	18012
CY2017	us-gaap	Stock Issued During Period Shares Stock Options Exercised StockIssuedDuringPeriodSharesStockOptionsExercised	46790
CY2016	us-gaap	Stock Issued During Period Shares Stock Options Exercised StockIssuedDuringPeriodSharesStockOptionsExercised	327830
CY2015	us-gaap	Stock Issued During Period Shares Stock Options Exercised StockIssuedDuringPeriodSharesStockOptionsExercised	214580
CY2015	us-gaap	Stock Issued During Period Value Acquisitions StockIssuedDuringPeriodValueAcquisitions	82769000
CY2017	us-gaap	Stock Issued During Period Value Acquisitions StockIssuedDuringPeriodValueAcquisitions	34862000
CY2017	us-gaap	Stock Issued During Period Value Dividend Reinvestment Plan StockIssuedDuringPeriodValueDividendReinvestmentPlan	2528000
CY2016	us-gaap	Stock Issued During Period Value Dividend Reinvestment Plan StockIssuedDuringPeriodValueDividendReinvestmentPlan	2277000
CY2015	us-gaap	Stock Issued During Period Value Dividend Reinvestment Plan StockIssuedDuringPeriodValueDividendReinvestmentPlan	4175000
CY2017	us-gaap	Stock Issued During Period Value Employee Stock Ownership Plan StockIssuedDuringPeriodValueEmployeeStockOwnershipPlan	646000
CY2016	us-gaap	Stock Issued During Period Value Employee Stock Ownership Plan StockIssuedDuringPeriodValueEmployeeStockOwnershipPlan	600000
CY2015	us-gaap	Stock Issued During Period Value Employee Stock Ownership Plan StockIssuedDuringPeriodValueEmployeeStockOwnershipPlan	541000
CY2015	us-gaap	Stock Issued During Period Value Issued For Services StockIssuedDuringPeriodValueIssuedForServices	495000
CY2016	us-gaap	Stock Issued During Period Value Issued For Services StockIssuedDuringPeriodValueIssuedForServices	550000
CY2017	us-gaap	Stock Issued During Period Value Issued For Services StockIssuedDuringPeriodValueIssuedForServices	550000
CY2015	us-gaap	Stock Issued During Period Value Restricted Stock Award Net Of Forfeitures StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures
CY2016	us-gaap	Stock Issued During Period Value Restricted Stock Award Net Of Forfeitures StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures
CY2017	us-gaap	Stock Issued During Period Value Restricted Stock Award Net Of Forfeitures StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures	2000
CY2015	us-gaap	Stock Issued During Period Value Stock Options Exercised StockIssuedDuringPeriodValueStockOptionsExercised	5014000
CY2016	us-gaap	Stock Issued During Period Value Stock Options Exercised StockIssuedDuringPeriodValueStockOptionsExercised	7661000
CY2017	us-gaap	Stock Issued During Period Value Stock Options Exercised StockIssuedDuringPeriodValueStockOptionsExercised	1094000
CY2017Q4	us-gaap	Stockholders Equity StockholdersEquity	1973304000
CY2016Q4	us-gaap	Stockholders Equity StockholdersEquity	1828539000
CY2014Q4	us-gaap	Stockholders Equity StockholdersEquity	1602888000
CY2015Q4	us-gaap	Stockholders Equity StockholdersEquity	1747778000
CY2017	us-gaap	Stockholders Equity Period Increase Decrease StockholdersEquityPeriodIncreaseDecrease	144800000
CY2017Q4	us-gaap	Tier One Leverage Capital TierOneLeverageCapital	1572025000
CY2016Q4	us-gaap	Tier One Leverage Capital TierOneLeverageCapital	1574806000
CY2017Q4	us-gaap	Tier One Leverage Capital Required For Capital Adequacy TierOneLeverageCapitalRequiredForCapitalAdequacy	607349000
CY2016Q4	us-gaap	Tier One Leverage Capital Required For Capital Adequacy TierOneLeverageCapitalRequiredForCapitalAdequacy	544614000
CY2017Q4	us-gaap	Tier One Leverage Capital Required For Capital Adequacy To Average Assets TierOneLeverageCapitalRequiredForCapitalAdequacyToAverageAssets	0.04
CY2016Q4	us-gaap	Tier One Leverage Capital Required For Capital Adequacy To Average Assets TierOneLeverageCapitalRequiredForCapitalAdequacyToAverageAssets	0.04
CY2017Q4	us-gaap	Tier One Leverage Capital Required To Be Well Capitalized To Average Assets TierOneLeverageCapitalRequiredToBeWellCapitalizedToAverageAssets	0.05
CY2017Q4	us-gaap	Tier One Leverage Capital To Average Assets TierOneLeverageCapitalToAverageAssets	0.1035
CY2016Q4	us-gaap	Tier One Leverage Capital To Average Assets TierOneLeverageCapitalToAverageAssets	0.1157
CY2017Q4	us-gaap	Tier One Risk Based Capital TierOneRiskBasedCapital	1572025000
CY2016Q4	us-gaap	Tier One Risk Based Capital TierOneRiskBasedCapital	1574806000
CY2017Q4	us-gaap	Tier One Risk Based Capital Required For Capital Adequacy TierOneRiskBasedCapitalRequiredForCapitalAdequacy	774070000
CY2016Q4	us-gaap	Tier One Risk Based Capital Required For Capital Adequacy TierOneRiskBasedCapitalRequiredForCapitalAdequacy	682120000
CY2017Q4	us-gaap	Tier One Risk Based Capital Required For Capital Adequacy To Risk Weighted Assets TierOneRiskBasedCapitalRequiredForCapitalAdequacyToRiskWeightedAssets	0.06
CY2016Q4	us-gaap	Tier One Risk Based Capital Required For Capital Adequacy To Risk Weighted Assets TierOneRiskBasedCapitalRequiredForCapitalAdequacyToRiskWeightedAssets	0.06
CY2017Q4	us-gaap	Tier One Risk Based Capital Required To Be Well Capitalized To Risk Weighted Assets TierOneRiskBasedCapitalRequiredToBeWellCapitalizedToRiskWeightedAssets	0.08
CY2017Q4	us-gaap	Tier One Risk Based Capital To Risk Weighted Assets TierOneRiskBasedCapitalToRiskWeightedAssets	0.1219
CY2016Q4	us-gaap	Tier One Risk Based Capital To Risk Weighted Assets TierOneRiskBasedCapitalToRiskWeightedAssets	0.1385
CY2017Q4	us-gaap	Time Deposit Maturities After Year Five TimeDepositMaturitiesAfterYearFive	11000
CY2017Q4	us-gaap	Time Deposit Maturities Year Five TimeDepositMaturitiesYearFive	592000
CY2017Q4	us-gaap	Time Deposit Maturities Year Four TimeDepositMaturitiesYearFour	73000
CY2017Q4	us-gaap	Time Deposit Maturities Year One TimeDepositMaturitiesYearOne	4724089000
CY2017Q4	us-gaap	Time Deposit Maturities Year Three TimeDepositMaturitiesYearThree	133824000
CY2017Q4	us-gaap	Time Deposit Maturities Year Two TimeDepositMaturitiesYearTwo	532188000
CY2017Q4	us-gaap	Time Deposits TimeDeposits	5390777000
CY2016Q4	us-gaap	Time Deposits TimeDeposits	5047287000
CY2017Q4	us-gaap	Time Deposits At Carrying Value TimeDepositsAtCarryingValue	5390777000
CY2017	us-gaap	Transfer Of Loans Held For Sale To Portfolio Loans1 TransferOfLoansHeldForSaleToPortfolioLoans1	8000000
CY2016	us-gaap	Transfer Of Loans Held For Sale To Portfolio Loans1 TransferOfLoansHeldForSaleToPortfolioLoans1	7953000
CY2015	us-gaap	Transfer Of Loans Held For Sale To Portfolio Loans1 TransferOfLoansHeldForSaleToPortfolioLoans1	6684000
CY2017Q4	us-gaap	Treasury Stock Shares TreasuryStockShares	8210643
CY2016Q4	us-gaap	Treasury Stock Shares TreasuryStockShares	8210643
CY2017Q4	us-gaap	Treasury Stock Value TreasuryStockValue	239589000
CY2016Q4	us-gaap	Treasury Stock Value TreasuryStockValue	239589000
CY2015	us-gaap	Treasury Stock Value Acquired Cost Method TreasuryStockValueAcquiredCostMethod	59412000
CY2016	us-gaap	Treasury Stock Value Acquired Cost Method TreasuryStockValueAcquiredCostMethod	54441000
CY2017	us-gaap	Use Of Estimates UseOfEstimates	<div style="display: inline; font-family: times new roman; font-size: 10pt"><div style="display: inline; font-family: times new roman; font-size: 10pt"><div style="display: inline; font-family: times new roman; font-size: 10pt"><div style=" margin: 0pt; text-align: justify; text-indent: 18pt; font-family: Times New Roman, Times, serif; font-size: 10pt;"><div style="display: inline; font-style: italic;">Use of Estimates. </div><div style="display: inline; font-family: Times New Roman, Times, serif; font-size: 10pt;">The preparation of the Consolidated Financial Statements in accordance with GAAP requires management of the Company to make a number of estimates and assumptions relating to the reported amount of assets and liabilities and the disclosure of contingent assets and liabilities at the date of the Consolidated Financial Statements and the reported amounts of revenues and expenses during the period. Actual results could differ from those estimates. The significant estimates subject to change relate to the allowance for loan losses.</div></div></div></div></div>
CY2017	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	81004550
CY2016	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	79929262
CY2015	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	81294796
CY2017	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	80262782
CY2016	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	79153762
CY2015	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	80563577

Files In Submission

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$CATY
CATHAY GENERAL BANCORP Stock $caty

2016 Q4 Form 10-K Financial Statement

#000143774918003646 Filed on March 01, 2018

Income Statement

Balance Sheet

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Facts In Submission

Files In Submission

$CATY CATHAY GENERAL BANCORP Stock $caty

2016 Q4 Form 10-K Financial Statement

#000143774918003646 Filed on March 01, 2018

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$CATY
CATHAY GENERAL BANCORP Stock $caty