$FNB
FNB CORP/PA/ Stock $fnb

$fnb Overview Financials Valuation SEC Filings Company Website

2016 Q4 Form 10-K Financial Statement

#000003780818000005 Filed on February 28, 2018

Income Statement

Concept	2016 Q4	2016 Q3	2016 Q2
Revenue	$177.2M	$175.1M	$170.9M
YoY Change		27.63%	26.2%
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	$15.40M	$19.20M	$14.10M
YoY Change	23.2%	102.11%	38.24%
% of Gross Profit
Operating Expenses
YoY Change
Operating Profit
YoY Change
Interest Expense	$17.89M	$17.60M	$16.56M
YoY Change		46.75%	41.79%
% of Operating Profit
Other Income/Expense, Net
YoY Change
Pretax Income	$73.80M	$75.06M	$59.51M
YoY Change	30.62%	30.23%	2.33%
Income Tax	$22.50M	$22.89M	$18.21M
% Of Pretax Income	30.49%	30.5%	30.6%
Net Earnings	$51.29M	$52.17M	$41.30M
YoY Change	31.18%	30.25%	2.91%
Net Earnings / Revenue	28.95%	29.79%	24.16%
Basic Earnings Per Share	$0.23	$0.24	$0.19
Diluted Earnings Per Share	$0.23	$0.24	$0.19
COMMON SHARES
Basic Shares Outstanding	210.5M shares	210.3M shares	210.1M shares
Diluted Shares Outstanding		211.8M shares	211.7M shares

Balance Sheet

Concept	2016 Q4	2016 Q3	2016 Q2
SHORT-TERM ASSETS
Cash & Short-Term Investments
YoY Change
Cash & Equivalents	$371.0M	$445.3M	$399.0M
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	$244.0M	$228.6M	$224.8M
YoY Change	53.35%	41.4%	34.61%
Goodwill	$1.032B	$1.022B	$1.021B
YoY Change	23.88%	22.52%	22.84%
Intangibles	$53.81M	$81.65M	$83.74M
YoY Change	17.88%	75.9%	85.86%
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	$21.85B	$21.58B	$21.21B
YoY Change	24.42%	28.2%	27.81%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable
YoY Change
Accrued Expenses
YoY Change
Deferred Revenue
YoY Change
Short-Term Debt	$2.503B	$2.236B	$2.260B
YoY Change	22.16%	73.7%	49.94%
Long-Term Debt Due	$128.0M	$128.0M	$124.0M
YoY Change	3.23%	2.4%	-0.8%
Total Short-Term Liabilities	$128.0M	$128.0M	$124.0M
YoY Change	3.23%	2.4%	-0.8%
LONG-TERM LIABILITIES
Long-Term Debt	$234.0M	$232.0M	$232.0M
YoY Change	-2.9%	62.24%	62.24%
Other Long-Term Liabilities	$165.0M	$213.0M	$224.0M
YoY Change	11.49%	40.13%	79.2%
Total Long-Term Liabilities	$399.0M	$445.0M	$456.0M
YoY Change	2.57%	50.85%	70.15%
TOTAL LIABILITIES
Total Short-Term Liabilities	$128.0M	$128.0M	$124.0M
Total Long-Term Liabilities	$399.0M	$445.0M	$456.0M
Total Liabilities	$19.27B	$19.01B	$18.67B
YoY Change	24.65%	28.98%	28.47%
SHAREHOLDERS EQUITY
Retained Earnings	$304.4M	$280.7M	$255.9M
YoY Change	25.15%	23.48%	21.62%
Common Stock	$2.236B	$2.226B	$2.222B
YoY Change	23.56%	23.12%	23.11%
Preferred Stock
YoY Change
Treasury Stock (at cost)	$14.78M	$14.75M	$14.37M
YoY Change	15.86%	16.0%	13.19%
Treasury Stock Shares	1.319M shares	1.317M shares	1.286M shares
Shareholders Equity	$2.572B	$2.571B	$2.545B
YoY Change
Total Liabilities & Shareholders Equity	$21.84B	$21.58B	$21.21B
YoY Change	24.42%	28.2%	27.81%

Cashflow Statement

Concept	2016 Q4	2016 Q3	2016 Q2
OPERATING ACTIVITIES
Net Income	$51.29M	$52.17M	$41.30M
YoY Change	31.18%	30.25%	2.91%
Depreciation, Depletion And Amortization	$15.40M	$19.20M	$14.10M
YoY Change	23.2%	102.11%	38.24%
Cash From Operating Activities	$102.8M	$90.00M	$6.000M
YoY Change	166.32%	12.92%	-84.58%
INVESTING ACTIVITIES
Capital Expenditures	-$22.20M	-$9.800M	-$13.40M
YoY Change	825.0%	-800.0%	436.0%
Acquisitions
YoY Change
Other Investing Activities	-$445.7M	-$364.8M	-$448.6M
YoY Change	-13.14%	447.75%	34.43%
Cash From Investing Activities	-$468.0M	-$374.5M	-$462.0M
YoY Change	-9.23%	473.51%	37.46%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net
YoY Change
Debt Paid & Issued, Net
YoY Change
Cash From Financing Activities	291.3M	330.8M	509.1M
YoY Change	-58.82%	4694.2%	69.42%
NET CHANGE
Cash From Operating Activities	102.8M	90.00M	6.000M
Cash From Investing Activities	-468.0M	-374.5M	-462.0M
Cash From Financing Activities	291.3M	330.8M	509.1M
Net Change In Cash	-73.90M	46.30M	53.10M
YoY Change	-132.09%	117.37%	1509.09%
FREE CASH FLOW
Cash From Operating Activities	$102.8M	$90.00M	$6.000M
Capital Expenditures	-$22.20M	-$9.800M	-$13.40M
Free Cash Flow	$125.0M	$99.80M	$19.40M
YoY Change	204.88%	27.46%	-53.14%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
CY2017	dei	Amendment Flag AmendmentFlag	false
CY2017	dei	Current Fiscal Year End Date CurrentFiscalYearEndDate	--12-31
CY2017	dei	Document Fiscal Period Focus DocumentFiscalPeriodFocus	FY
CY2017	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2017
CY2017	dei	Document Period End Date DocumentPeriodEndDate	2017-12-31
CY2017	dei	Document Type DocumentType	10-K
CY2017	dei	Entity Central Index Key EntityCentralIndexKey	0000037808
CY2018Q1	dei	Entity Common Stock Shares Outstanding EntityCommonStockSharesOutstanding	323523445	shares
CY2017	dei	Entity Current Reporting Status EntityCurrentReportingStatus	Yes
CY2017	dei	Entity Filer Category EntityFilerCategory	Large Accelerated Filer
CY2017Q2	dei	Entity Public Float EntityPublicFloat	4464901676	USD
CY2017	dei	Entity Registrant Name EntityRegistrantName	FNB CORP/PA/
CY2017	dei	Entity Voluntary Filers EntityVoluntaryFilers	No
CY2017	dei	Entity Well Known Seasoned Issuer EntityWellKnownSeasonedIssuer	Yes
CY2017	dei	Trading Symbol TradingSymbol	FNB
CY2017Q4	fnb	Aggregate Cash Reserves Required At Federal Reserve Bank AggregateCashReservesRequiredAtFederalReserveBank	39600000	USD
CY2016Q4	fnb	Allowances For Impaired Commercial Loans On Collateral Values AllowancesForImpairedCommercialLoansOnCollateralValues	500000	USD
CY2017Q4	fnb	Allowances For Impaired Commercial Loans On Collateral Values AllowancesForImpairedCommercialLoansOnCollateralValues	500000	USD
CY2015	fnb	Available For Sale Securities Income Tax Expense On Gain Or Loss On Sale AvailableForSaleSecuritiesIncomeTaxExpenseOnGainOrLossOnSale	288000	USD
CY2016	fnb	Available For Sale Securities Income Tax Expense On Gain Or Loss On Sale AvailableForSaleSecuritiesIncomeTaxExpenseOnGainOrLossOnSale	249000	USD
CY2017	fnb	Available For Sale Securities Income Tax Expense On Gain Or Loss On Sale AvailableForSaleSecuritiesIncomeTaxExpenseOnGainOrLossOnSale	2071000	USD
CY2017Q4	fnb	Available For Sale Securities With Contractual Maturities Amortized Cost AvailableForSaleSecuritiesWithContractualMaturitiesAmortizedCost	373831000	USD
CY2017Q4	fnb	Available For Sale Securities With Contractual Maturities Fair Value AvailableForSaleSecuritiesWithContractualMaturitiesFairValue	369705000	USD
CY2016	fnb	Business Acquisitions Pro Forma Net Income Loss Available To Common Stockholders BusinessAcquisitionsProFormaNetIncomeLossAvailableToCommonStockholders	210156000	USD
CY2017	fnb	Business Acquisitions Pro Forma Net Income Loss Available To Common Stockholders BusinessAcquisitionsProFormaNetIncomeLossAvailableToCommonStockholders	240707000	USD
CY2015	fnb	Capital Markets Income CapitalMarketsIncome	10246000	USD
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CY2017	fnb	Capital Markets Income CapitalMarketsIncome	16603000	USD
CY2016	fnb	Certain Loans Acquired In Transfer Not Accounted For As Available For Sale Debt Securities Accretable Yield Reduction Due To Early Payoffs CertainLoansAcquiredInTransferNotAccountedForAsAvailableForSaleDebtSecuritiesAccretableYieldReductionDueToEarlyPayoffs	86046000	USD
CY2017	fnb	Certain Loans Acquired In Transfer Not Accounted For As Available For Sale Debt Securities Accretable Yield Reduction Due To Early Payoffs CertainLoansAcquiredInTransferNotAccountedForAsAvailableForSaleDebtSecuritiesAccretableYieldReductionDueToEarlyPayoffs	127949000	USD
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CY2016	fnb	Deferred Tax Benefit From Stock Options Exercised DeferredTaxBenefitFromStockOptionsExercised	1862000	USD
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CY2016Q4	fnb	Time Deposits100000 Through250000 TimeDeposits100000Through250000	642509000	USD
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CY2016Q4	fnb	Time Deposits250000 Or More TimeDeposits250000OrMore	253918000	USD
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CY2017Q4	fnb	Valuation For Impairment Of Loans With Pooled Reserves ValuationForImpairmentOfLoansWithPooledReserves	500000	USD
CY2017	fnb	Zero Point Five Percent Decrease In Discount Rate Estimated Effect On Pension Expense ZeroPointFivePercentDecreaseInDiscountRateEstimatedEffectOnPensionExpense	97000	USD
CY2017	fnb	Zero Point Five Percent Decrease In Expected Long Term Rate Of Return On Plan Assets Estimated Effect On Pension Expense ZeroPointFivePercentDecreaseInExpectedLongTermRateOfReturnOnPlanAssetsEstimatedEffectOnPensionExpense	767000	USD
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CY2016Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	162793000	USD
CY2017Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	183278000	USD
CY2016Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-61369000	USD
CY2017Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-83052000	USD
CY2016Q4	us-gaap	Additional Collateral Aggregate Fair Value AdditionalCollateralAggregateFairValue	1100000	USD
CY2017Q4	us-gaap	Additional Collateral Aggregate Fair Value AdditionalCollateralAggregateFairValue	900000	USD
CY2016Q4	us-gaap	Additional Paid In Capital Common Stock AdditionalPaidInCapitalCommonStock	2234366000	USD
CY2017Q4	us-gaap	Additional Paid In Capital Common Stock AdditionalPaidInCapitalCommonStock	4033567000	USD
CY2015	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	4461000	USD
CY2016	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	7066000	USD
CY2017	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	8201000	USD
CY2015	us-gaap	Adjustments To Additional Paid In Capital Tax Effect From Share Based Compensation AdjustmentsToAdditionalPaidInCapitalTaxEffectFromShareBasedCompensation	28000	USD
CY2016	us-gaap	Adjustments To Additional Paid In Capital Tax Effect From Share Based Compensation AdjustmentsToAdditionalPaidInCapitalTaxEffectFromShareBasedCompensation	1813000	USD
CY2017	us-gaap	Adjustments To Additional Paid In Capital Warrant Issued AdjustmentsToAdditionalPaidInCapitalWarrantIssued	1394000	USD
CY2015	us-gaap	Allowance For Loan And Lease Loss Recovery Of Bad Debts AllowanceForLoanAndLeaseLossRecoveryOfBadDebts	6713000	USD
CY2016	us-gaap	Allowance For Loan And Lease Loss Recovery Of Bad Debts AllowanceForLoanAndLeaseLossRecoveryOfBadDebts	11809000	USD
CY2017	us-gaap	Allowance For Loan And Lease Loss Recovery Of Bad Debts AllowanceForLoanAndLeaseLossRecoveryOfBadDebts	15833000	USD
CY2015	us-gaap	Allowance For Loan And Lease Losses Write Offs AllowanceForLoanAndLeaseLossesWriteOffs	31068000	USD
CY2016	us-gaap	Allowance For Loan And Lease Losses Write Offs AllowanceForLoanAndLeaseLossesWriteOffs	51514000	USD
CY2017	us-gaap	Allowance For Loan And Lease Losses Write Offs AllowanceForLoanAndLeaseLossesWriteOffs	59585000	USD
CY2015	us-gaap	Allowance For Loan And Lease Losses Writeoffs Net AllowanceForLoanAndLeaseLossesWriteoffsNet	24355000	USD
CY2016	us-gaap	Allowance For Loan And Lease Losses Writeoffs Net AllowanceForLoanAndLeaseLossesWriteoffsNet	39705000	USD
CY2017	us-gaap	Allowance For Loan And Lease Losses Writeoffs Net AllowanceForLoanAndLeaseLossesWriteoffsNet	43752000	USD
CY2016Q4	us-gaap	Amortization Method Qualified Affordable Housing Project Investments AmortizationMethodQualifiedAffordableHousingProjectInvestments	14000000	USD
CY2017Q4	us-gaap	Amortization Method Qualified Affordable Housing Project Investments AmortizationMethodQualifiedAffordableHousingProjectInvestments	20900000	USD
CY2015	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	8305000	USD
CY2016	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	11210000	USD
CY2017	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	17517000	USD
CY2015	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	18167	shares
CY2016	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	9980	shares
CY2017	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	910	shares
CY2015Q4	us-gaap	Assets Assets	17557662000	USD
CY2016Q4	us-gaap	Assets Assets	21844817000	USD
CY2017Q4	us-gaap	Assets Assets	31417635000	USD
CY2016Q4	us-gaap	Available For Sale Securities AvailableForSaleSecurities	2231987000	USD
CY2017Q4	us-gaap	Available For Sale Securities AvailableForSaleSecurities	2764562000	USD
CY2016Q4	us-gaap	Available For Sale Securities Accumulated Gross Unrealized Gain Before Tax AvailableForSaleSecuritiesAccumulatedGrossUnrealizedGainBeforeTax	4172000	USD
CY2017Q4	us-gaap	Available For Sale Securities Accumulated Gross Unrealized Gain Before Tax AvailableForSaleSecuritiesAccumulatedGrossUnrealizedGainBeforeTax	1721000	USD
CY2016Q4	us-gaap	Available For Sale Securities Accumulated Gross Unrealized Loss Before Tax AvailableForSaleSecuritiesAccumulatedGrossUnrealizedLossBeforeTax	32206000	USD
CY2017Q4	us-gaap	Available For Sale Securities Accumulated Gross Unrealized Loss Before Tax AvailableForSaleSecuritiesAccumulatedGrossUnrealizedLossBeforeTax	39780000	USD
CY2016Q4	us-gaap	Available For Sale Securities Amortized Cost AvailableForSaleSecuritiesAmortizedCost	2260021000	USD
CY2017Q4	us-gaap	Available For Sale Securities Amortized Cost AvailableForSaleSecuritiesAmortizedCost	2802621000	USD
CY2016Q4	us-gaap	Available For Sale Securities Continuous Unrealized Loss Position12 Months Or Longer Accumulated Loss AvailableForSaleSecuritiesContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss	4278000	USD
CY2017Q4	us-gaap	Available For Sale Securities Continuous Unrealized Loss Position12 Months Or Longer Accumulated Loss AvailableForSaleSecuritiesContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss	25408000	USD
CY2016Q4	us-gaap	Available For Sale Securities Continuous Unrealized Loss Position Accumulated Loss AvailableForSaleSecuritiesContinuousUnrealizedLossPositionAccumulatedLoss	32206000	USD
CY2017Q4	us-gaap	Available For Sale Securities Continuous Unrealized Loss Position Accumulated Loss AvailableForSaleSecuritiesContinuousUnrealizedLossPositionAccumulatedLoss	39780000	USD
CY2016Q4	us-gaap	Available For Sale Securities Continuous Unrealized Loss Position Fair Value AvailableForSaleSecuritiesContinuousUnrealizedLossPositionFairValue	1738461000	USD
CY2017Q4	us-gaap	Available For Sale Securities Continuous Unrealized Loss Position Fair Value AvailableForSaleSecuritiesContinuousUnrealizedLossPositionFairValue	2519917000	USD
CY2016Q4	us-gaap	Available For Sale Securities Continuous Unrealized Loss Position Less Than12 Months Accumulated Loss AvailableForSaleSecuritiesContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss	27928000	USD
CY2017Q4	us-gaap	Available For Sale Securities Continuous Unrealized Loss Position Less Than12 Months Accumulated Loss AvailableForSaleSecuritiesContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss	14372000	USD
CY2016Q4	us-gaap	Available For Sale Securities Continuous Unrealized Loss Position Less Than Twelve Months Fair Value AvailableForSaleSecuritiesContinuousUnrealizedLossPositionLessThanTwelveMonthsFairValue	1644951000	USD
CY2017Q4	us-gaap	Available For Sale Securities Continuous Unrealized Loss Position Less Than Twelve Months Fair Value AvailableForSaleSecuritiesContinuousUnrealizedLossPositionLessThanTwelveMonthsFairValue	1503806000	USD
CY2016Q4	us-gaap	Available For Sale Securities Continuous Unrealized Loss Position Twelve Months Or Longer Fair Value AvailableForSaleSecuritiesContinuousUnrealizedLossPositionTwelveMonthsOrLongerFairValue	93510000	USD
CY2017Q4	us-gaap	Available For Sale Securities Continuous Unrealized Loss Position Twelve Months Or Longer Fair Value AvailableForSaleSecuritiesContinuousUnrealizedLossPositionTwelveMonthsOrLongerFairValue	1016111000	USD
CY2017Q4	us-gaap	Available For Sale Securities Debt Maturities After Five Through Ten Years Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsAmortizedCost	10892000	USD
CY2017Q4	us-gaap	Available For Sale Securities Debt Maturities After Five Through Ten Years Fair Value AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsFairValue	10795000	USD
CY2017Q4	us-gaap	Available For Sale Securities Debt Maturities After One Through Five Years Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsAmortizedCost	278153000	USD
CY2017Q4	us-gaap	Available For Sale Securities Debt Maturities After One Through Five Years Fair Value AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsFairValue	274516000	USD
CY2017Q4	us-gaap	Available For Sale Securities Debt Maturities After Ten Years Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesAfterTenYearsAmortizedCost	2967000	USD
CY2017Q4	us-gaap	Available For Sale Securities Debt Maturities After Ten Years Fair Value AvailableForSaleSecuritiesDebtMaturitiesAfterTenYearsFairValue	2800000	USD
CY2017Q4	us-gaap	Available For Sale Securities Debt Maturities Within One Year Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearAmortizedCost	81819000	USD
CY2017Q4	us-gaap	Available For Sale Securities Debt Maturities Within One Year Fair Value AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearFairValue	81594000	USD
CY2017	us-gaap	Available For Sale Securities Gross Realized Gain Loss Net AvailableForSaleSecuritiesGrossRealizedGainLossNet	3700000	USD
CY2017	us-gaap	Available For Sale Securities Gross Realized Gains AvailableForSaleSecuritiesGrossRealizedGains	4700000	USD
CY2017	us-gaap	Available For Sale Securities Gross Realized Losses AvailableForSaleSecuritiesGrossRealizedLosses	1000000	USD
CY2016Q4	us-gaap	Available For Sale Securities In Unrealized Loss Positions Qualitative Disclosure Number Of Positions Less Than One Year AvailableForSaleSecuritiesInUnrealizedLossPositionsQualitativeDisclosureNumberOfPositionsLessThanOneYear	113	Security
CY2017Q4	us-gaap	Available For Sale Securities In Unrealized Loss Positions Qualitative Disclosure Number Of Positions Less Than One Year AvailableForSaleSecuritiesInUnrealizedLossPositionsQualitativeDisclosureNumberOfPositionsLessThanOneYear	71	Security
CY2016Q4	us-gaap	Availableforsale Securities In Unrealized Loss Positions Qualitative Disclosure Number Of Positions1 AvailableforsaleSecuritiesInUnrealizedLossPositionsQualitativeDisclosureNumberOfPositions1	125	Security
CY2017Q4	us-gaap	Availableforsale Securities In Unrealized Loss Positions Qualitative Disclosure Number Of Positions1 AvailableforsaleSecuritiesInUnrealizedLossPositionsQualitativeDisclosureNumberOfPositions1	146	Security
CY2016Q4	us-gaap	Availableforsale Securities In Unrealized Loss Positions Qualitative Disclosure Number Of Positions Greater Than Or Equal To One Year AvailableforsaleSecuritiesInUnrealizedLossPositionsQualitativeDisclosureNumberOfPositionsGreaterThanOrEqualToOneYear	12	Security
CY2017Q4	us-gaap	Availableforsale Securities In Unrealized Loss Positions Qualitative Disclosure Number Of Positions Greater Than Or Equal To One Year AvailableforsaleSecuritiesInUnrealizedLossPositionsQualitativeDisclosureNumberOfPositionsGreaterThanOrEqualToOneYear	75	Security
CY2016Q4	us-gaap	Bank Owned Life Insurance BankOwnedLifeInsurance	330152000	USD
CY2017Q4	us-gaap	Bank Owned Life Insurance BankOwnedLifeInsurance	526818000	USD
CY2015	us-gaap	Bank Owned Life Insurance Income BankOwnedLifeInsuranceIncome	8135000	USD
CY2016	us-gaap	Bank Owned Life Insurance Income BankOwnedLifeInsuranceIncome	10249000	USD
CY2017	us-gaap	Bank Owned Life Insurance Income BankOwnedLifeInsuranceIncome	11693000	USD
CY2016Q4	us-gaap	Buildings And Improvements Gross BuildingsAndImprovementsGross	186784000	USD
CY2017Q4	us-gaap	Buildings And Improvements Gross BuildingsAndImprovementsGross	239807000	USD
CY2016	us-gaap	Business Acquisition Pro Forma Earnings Per Share Basic BusinessAcquisitionProFormaEarningsPerShareBasic	0.67
CY2017	us-gaap	Business Acquisition Pro Forma Earnings Per Share Basic BusinessAcquisitionProFormaEarningsPerShareBasic	0.80
CY2016	us-gaap	Business Acquisition Pro Forma Earnings Per Share Diluted BusinessAcquisitionProFormaEarningsPerShareDiluted	0.67
CY2017	us-gaap	Business Acquisition Pro Forma Earnings Per Share Diluted BusinessAcquisitionProFormaEarningsPerShareDiluted	0.79
CY2016	us-gaap	Business Acquisitions Pro Forma Net Income Loss BusinessAcquisitionsProFormaNetIncomeLoss	218197000	USD
CY2017	us-gaap	Business Acquisitions Pro Forma Net Income Loss BusinessAcquisitionsProFormaNetIncomeLoss	248748000	USD
CY2016	us-gaap	Business Acquisitions Pro Forma Revenue BusinessAcquisitionsProFormaRevenue	1101638000	USD
CY2017	us-gaap	Business Acquisitions Pro Forma Revenue BusinessAcquisitionsProFormaRevenue	1155977000	USD
CY2015	us-gaap	Business Combination Acquisition Related Costs BusinessCombinationAcquisitionRelatedCosts	3033000	USD
CY2016	us-gaap	Business Combination Acquisition Related Costs BusinessCombinationAcquisitionRelatedCosts	37439000	USD
CY2017	us-gaap	Business Combination Acquisition Related Costs BusinessCombinationAcquisitionRelatedCosts	56513000	USD
CY2016Q4	us-gaap	Capital Capital	1917386000	USD
CY2017Q4	us-gaap	Capital Capital	2666272000	USD
CY2016Q4	us-gaap	Capital Required For Capital Adequacy CapitalRequiredForCapitalAdequacy	1378232000	USD
CY2017Q4	us-gaap	Capital Required For Capital Adequacy CapitalRequiredForCapitalAdequacy	2164835000	USD
CY2017Q4	us-gaap	Capital Required To Be Well Capitalized CapitalRequiredToBeWellCapitalized	2340362000	USD
CY2016Q4	us-gaap	Capital Required For Capital Adequacy To Risk Weighted Assets CapitalRequiredForCapitalAdequacyToRiskWeightedAssets	0.086
CY2017Q4	us-gaap	Capital Required For Capital Adequacy To Risk Weighted Assets CapitalRequiredForCapitalAdequacyToRiskWeightedAssets	0.093
CY2016Q4	us-gaap	Capital Required To Be Well Capitalized CapitalRequiredToBeWellCapitalized	1597951000	USD
CY2016Q4	us-gaap	Capital Required To Be Well Capitalized To Risk Weighted Assets CapitalRequiredToBeWellCapitalizedToRiskWeightedAssets	0.100
CY2017Q4	us-gaap	Capital Required To Be Well Capitalized To Risk Weighted Assets CapitalRequiredToBeWellCapitalizedToRiskWeightedAssets	0.100
CY2016Q4	us-gaap	Capital To Risk Weighted Assets CapitalToRiskWeightedAssets	0.120
CY2017Q4	us-gaap	Capital To Risk Weighted Assets CapitalToRiskWeightedAssets	0.114
CY2015	us-gaap	Cash Acquired In Excess Of Payments To Acquire Business CashAcquiredInExcessOfPaymentsToAcquireBusiness	144629000	USD
CY2016	us-gaap	Cash Acquired In Excess Of Payments To Acquire Business CashAcquiredInExcessOfPaymentsToAcquireBusiness	245762000	USD
CY2017	us-gaap	Cash Acquired In Excess Of Payments To Acquire Business CashAcquiredInExcessOfPaymentsToAcquireBusiness	196964000	USD
CY2014Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	287393000	USD
CY2015Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	489119000	USD
CY2016Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	371407000	USD
CY2017Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	479443000	USD
CY2015	us-gaap	Cash And Cash Equivalents Period Increase Decrease CashAndCashEquivalentsPeriodIncreaseDecrease	201726000	USD
CY2016	us-gaap	Cash And Cash Equivalents Period Increase Decrease CashAndCashEquivalentsPeriodIncreaseDecrease	-117712000	USD
CY2017	us-gaap	Cash And Cash Equivalents Period Increase Decrease CashAndCashEquivalentsPeriodIncreaseDecrease	108036000	USD
CY2016Q4	us-gaap	Cash And Due From Banks CashAndDueFromBanks	303526000	USD
CY2017Q4	us-gaap	Cash And Due From Banks CashAndDueFromBanks	408718000	USD
CY2015Q4	us-gaap	Certain Loans Acquired In Transfer Not Accounted For As Debt Securities Accretable Yield CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritiesAccretableYield	256120000	USD
CY2016Q4	us-gaap	Certain Loans Acquired In Transfer Not Accounted For As Debt Securities Accretable Yield CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritiesAccretableYield	467070000	USD
CY2017Q4	us-gaap	Certain Loans Acquired In Transfer Not Accounted For As Debt Securities Accretable Yield CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritiesAccretableYield	708481000	USD
CY2016	us-gaap	Certain Loans Acquired In Transfer Not Accounted For As Debt Securities Accretable Yield Accretion CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritiesAccretableYieldAccretion	103730000	USD
CY2017	us-gaap	Certain Loans Acquired In Transfer Not Accounted For As Debt Securities Accretable Yield Accretion CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritiesAccretableYieldAccretion	226978000	USD
CY2016	us-gaap	Certain Loans Acquired In Transfer Not Accounted For As Debt Securities Accretable Yield Additions CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritiesAccretableYieldAdditions	308312000	USD
CY2017	us-gaap	Certain Loans Acquired In Transfer Not Accounted For As Debt Securities Accretable Yield Additions CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritiesAccretableYieldAdditions	444715000	USD
CY2016	us-gaap	Certain Loans Acquired In Transfer Not Accounted For As Debt Securities Accretable Yield Disposals Of Loans CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritiesAccretableYieldDisposalsOfLoans	409000	USD
CY2017	us-gaap	Certain Loans Acquired In Transfer Not Accounted For As Debt Securities Accretable Yield Disposals Of Loans CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritiesAccretableYieldDisposalsOfLoans	3559000	USD
CY2016	us-gaap	Certain Loans Acquired In Transfer Not Accounted For As Debt Securities Accretable Yield Reclassifications From Nonaccretable Difference CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritiesAccretableYieldReclassificationsFromNonaccretableDifference	92800000	USD
CY2016	us-gaap	Certain Loans Acquired In Transfer Not Accounted For As Debt Securities Accretable Yield Reclassifications From Nonaccretable Difference CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritiesAccretableYieldReclassificationsFromNonaccretableDifference	92823000	USD
CY2017	us-gaap	Certain Loans Acquired In Transfer Not Accounted For As Debt Securities Accretable Yield Reclassifications From Nonaccretable Difference CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritiesAccretableYieldReclassificationsFromNonaccretableDifference	155840000	USD
CY2017	us-gaap	Certain Loans Acquired In Transfer Not Accounted For As Debt Securities Accretable Yield Reclassifications From Nonaccretable Difference CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritiesAccretableYieldReclassificationsFromNonaccretableDifference	155800000	USD
CY2009Q2	us-gaap	Class Of Warrant Or Right Number Of Securities Called By Warrants Or Rights ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights	651042	shares
CY2016Q4	us-gaap	Common Equity Tier One Capital CommonEquityTierOneCapital	1475369000	USD
CY2017Q4	us-gaap	Common Equity Tier One Capital CommonEquityTierOneCapital	2077689000	USD
CY2016Q4	us-gaap	Common Equity Tier One Capital Required To Be Well Capitalized CommonEquityTierOneCapitalRequiredToBeWellCapitalized	1038668000	USD
CY2017Q4	us-gaap	Common Equity Tier One Capital Required To Be Well Capitalized CommonEquityTierOneCapitalRequiredToBeWellCapitalized	1521235000	USD
CY2015	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	0.48
CY2016Q1	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	0.12
CY2016Q2	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	0.12
CY2016Q3	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	0.12
CY2016Q4	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	0.12
CY2016	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	0.48
CY2017Q1	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	0.12
CY2017Q2	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	0.12
CY2017Q3	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	0.12
CY2017Q4	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	0.12
CY2017	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	0.48
CY2016Q4	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.01
CY2017Q4	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.01
CY2016Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	500000000	shares
CY2017Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	500000000	shares
CY2016Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	212378494	shares
CY2017Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	325095055	shares
CY2016Q4	us-gaap	Common Stock Value CommonStockValue	2125000	USD
CY2017Q4	us-gaap	Common Stock Value CommonStockValue	3253000	USD
CY2015	us-gaap	Communication Communication	6234000	USD
CY2016	us-gaap	Communication Communication	7159000	USD
CY2017	us-gaap	Communication Communication	10218000	USD
CY2015	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	154519000	USD
CY2016	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	160655000	USD
CY2017	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	192237000	USD
CY2015	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	69572000	USD
CY2016	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	57894000	USD
CY2017	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	26336000	USD
CY2015	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	70561000	USD
CY2016	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	60223000	USD
CY2017	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	28082000	USD
CY2015	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	989000	USD
CY2016	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	2329000	USD
CY2017	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	1746000	USD
CY2015	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	63000	USD
CY2016	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	14983000	USD
CY2017	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	128204000	USD
CY2015	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-568000	USD
CY2016	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	15274000	USD
CY2017	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	128983000	USD
CY2015	us-gaap	Deferred Income Taxes And Tax Credits DeferredIncomeTaxesAndTaxCredits	550000	USD
CY2016	us-gaap	Deferred Income Taxes And Tax Credits DeferredIncomeTaxesAndTaxCredits	15250000	USD
CY2017	us-gaap	Deferred Income Taxes And Tax Credits DeferredIncomeTaxesAndTaxCredits	128983000	USD
CY2015	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	-631000	USD
CY2016	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	291000	USD
CY2017	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	779000	USD
CY2016Q4	us-gaap	Deferred Tax Assets Gross DeferredTaxAssetsGross	161006000	USD
CY2017Q4	us-gaap	Deferred Tax Assets Gross DeferredTaxAssetsGross	182069000	USD
CY2016Q4	us-gaap	Deferred Tax Assets Liabilities Net DeferredTaxAssetsLiabilitiesNet	99273000	USD
CY2017Q4	us-gaap	Deferred Tax Assets Liabilities Net DeferredTaxAssetsLiabilitiesNet	95550000	USD
CY2016Q4	us-gaap	Deferred Tax Assets Net DeferredTaxAssetsNet	142061000	USD
CY2017Q4	us-gaap	Deferred Tax Assets Net DeferredTaxAssetsNet	155449000	USD
CY2016Q4	us-gaap	Deferred Tax Assets Other DeferredTaxAssetsOther	11264000	USD
CY2017Q4	us-gaap	Deferred Tax Assets Other DeferredTaxAssetsOther	7787000	USD
CY2016Q4	us-gaap	Deferred Tax Assets Tax Credit Carryforwards DeferredTaxAssetsTaxCreditCarryforwards	17753000	USD
CY2017Q4	us-gaap	Deferred Tax Assets Tax Credit Carryforwards DeferredTaxAssetsTaxCreditCarryforwards	47376000	USD
CY2016Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefits	12236000	USD
CY2017Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefits	8534000	USD
CY2016Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Employee Benefits DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsEmployeeBenefits	7713000	USD
CY2017Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Employee Benefits DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsEmployeeBenefits	6768000	USD
CY2016Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Impairment Losses DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsImpairmentLosses	0	USD
CY2017Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Impairment Losses DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsImpairmentLosses	1092000	USD
CY2016Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Provision For Loan Losses DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsProvisionForLoanLosses	56090000	USD
CY2017Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Provision For Loan Losses DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsProvisionForLoanLosses	38933000	USD
CY2016Q4	us-gaap	Deferred Tax Assets Unrealized Losses On Availablefor Sale Securities Gross DeferredTaxAssetsUnrealizedLossesOnAvailableforSaleSecuritiesGross	6972000	USD
CY2017Q4	us-gaap	Deferred Tax Assets Unrealized Losses On Availablefor Sale Securities Gross DeferredTaxAssetsUnrealizedLossesOnAvailableforSaleSecuritiesGross	7238000	USD
CY2016Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	18945000	USD
CY2017Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	26620000	USD
CY2016Q4	us-gaap	Deferred Tax Liabilities DeferredTaxLiabilities	42788000	USD
CY2017Q4	us-gaap	Deferred Tax Liabilities DeferredTaxLiabilities	59899000	USD
CY2016Q4	us-gaap	Deferred Tax Liabilities Goodwill And Intangible Assets Intangible Assets DeferredTaxLiabilitiesGoodwillAndIntangibleAssetsIntangibleAssets	18506000	USD
CY2017Q4	us-gaap	Deferred Tax Liabilities Goodwill And Intangible Assets Intangible Assets DeferredTaxLiabilitiesGoodwillAndIntangibleAssetsIntangibleAssets	18422000	USD
CY2016Q4	us-gaap	Deferred Tax Liabilities Leasing Arrangements DeferredTaxLiabilitiesLeasingArrangements	5538000	USD
CY2017Q4	us-gaap	Deferred Tax Liabilities Leasing Arrangements DeferredTaxLiabilitiesLeasingArrangements	10035000	USD
CY2016Q4	us-gaap	Deferred Tax Liabilities Mortgage Servicing Rights DeferredTaxLiabilitiesMortgageServicingRights	748000	USD
CY2017Q4	us-gaap	Deferred Tax Liabilities Mortgage Servicing Rights DeferredTaxLiabilitiesMortgageServicingRights	6178000	USD
CY2016Q4	us-gaap	Deferred Tax Liabilities Other DeferredTaxLiabilitiesOther	1253000	USD
CY2017Q4	us-gaap	Deferred Tax Liabilities Other DeferredTaxLiabilitiesOther	1647000	USD
CY2016Q4	us-gaap	Deferred Tax Liabilities Other Comprehensive Income DeferredTaxLiabilitiesOtherComprehensiveIncome	86000	USD
CY2017Q4	us-gaap	Deferred Tax Liabilities Other Comprehensive Income DeferredTaxLiabilitiesOtherComprehensiveIncome	0	USD
CY2016Q4	us-gaap	Deferred Tax Liabilities Prepaid Expenses DeferredTaxLiabilitiesPrepaidExpenses	682000	USD
CY2017Q4	us-gaap	Deferred Tax Liabilities Prepaid Expenses DeferredTaxLiabilitiesPrepaidExpenses	3669000	USD
CY2016Q4	us-gaap	Deferred Tax Liabilities Property Plant And Equipment DeferredTaxLiabilitiesPropertyPlantAndEquipment	12392000	USD
CY2017Q4	us-gaap	Deferred Tax Liabilities Property Plant And Equipment DeferredTaxLiabilitiesPropertyPlantAndEquipment	12263000	USD
CY2016Q4	us-gaap	Defined Benefit Plan Accumulated Benefit Obligation DefinedBenefitPlanAccumulatedBenefitObligation	152586000	USD
CY2017Q4	us-gaap	Defined Benefit Plan Accumulated Benefit Obligation DefinedBenefitPlanAccumulatedBenefitObligation	181412000	USD
CY2016	us-gaap	Defined Benefit Plan Actual Return On Plan Assets DefinedBenefitPlanActualReturnOnPlanAssets	10787000	USD
CY2017	us-gaap	Defined Benefit Plan Actual Return On Plan Assets DefinedBenefitPlanActualReturnOnPlanAssets	17327000	USD
CY2016	us-gaap	Defined Benefit Plan Actuarial Gain Loss DefinedBenefitPlanActuarialGainLoss	-3723000	USD
CY2017	us-gaap	Defined Benefit Plan Actuarial Gain Loss DefinedBenefitPlanActuarialGainLoss	-9061000	USD
CY2015	us-gaap	Defined Benefit Plan Amortization Of Gains Losses DefinedBenefitPlanAmortizationOfGainsLosses	-2112000	USD
CY2016	us-gaap	Defined Benefit Plan Amortization Of Gains Losses DefinedBenefitPlanAmortizationOfGainsLosses	-2383000	USD
CY2017	us-gaap	Defined Benefit Plan Amortization Of Gains Losses DefinedBenefitPlanAmortizationOfGainsLosses	-2461000	USD
CY2015	us-gaap	Defined Benefit Plan Amortization Of Prior Service Cost Credit DefinedBenefitPlanAmortizationOfPriorServiceCostCredit	7000	USD
CY2016	us-gaap	Defined Benefit Plan Amortization Of Prior Service Cost Credit DefinedBenefitPlanAmortizationOfPriorServiceCostCredit	7000	USD
CY2017	us-gaap	Defined Benefit Plan Amortization Of Prior Service Cost Credit DefinedBenefitPlanAmortizationOfPriorServiceCostCredit	7000	USD
CY2015	us-gaap	Defined Benefit Plan Amortization Of Transition Asset Obligation DefinedBenefitPlanAmortizationOfTransitionAssetObligation	0	USD
CY2016	us-gaap	Defined Benefit Plan Amortization Of Transition Asset Obligation DefinedBenefitPlanAmortizationOfTransitionAssetObligation	0	USD
CY2017	us-gaap	Defined Benefit Plan Amortization Of Transition Asset Obligation DefinedBenefitPlanAmortizationOfTransitionAssetObligation	0	USD
CY2015	us-gaap	Defined Benefit Plan Amounts Recognized In Other Comprehensive Income Loss Net Gain Loss Before Tax DefinedBenefitPlanAmountsRecognizedInOtherComprehensiveIncomeLossNetGainLossBeforeTax	-4795000	USD
CY2016	us-gaap	Defined Benefit Plan Amounts Recognized In Other Comprehensive Income Loss Net Gain Loss Before Tax DefinedBenefitPlanAmountsRecognizedInOtherComprehensiveIncomeLossNetGainLossBeforeTax	41000	USD
CY2017	us-gaap	Defined Benefit Plan Amounts Recognized In Other Comprehensive Income Loss Net Gain Loss Before Tax DefinedBenefitPlanAmountsRecognizedInOtherComprehensiveIncomeLossNetGainLossBeforeTax	-387000	USD
CY2016Q4	us-gaap	Defined Benefit Plan Assumptions Used Calculating Benefit Obligation Discount Rate DefinedBenefitPlanAssumptionsUsedCalculatingBenefitObligationDiscountRate	0.0396
CY2017Q4	us-gaap	Defined Benefit Plan Assumptions Used Calculating Benefit Obligation Discount Rate DefinedBenefitPlanAssumptionsUsedCalculatingBenefitObligationDiscountRate	0.0353
CY2016Q4	us-gaap	Defined Benefit Plan Assumptions Used Calculating Benefit Obligation Rate Of Compensation Increase DefinedBenefitPlanAssumptionsUsedCalculatingBenefitObligationRateOfCompensationIncrease	0.0350
CY2017Q4	us-gaap	Defined Benefit Plan Assumptions Used Calculating Benefit Obligation Rate Of Compensation Increase DefinedBenefitPlanAssumptionsUsedCalculatingBenefitObligationRateOfCompensationIncrease	0.0350
CY2015	us-gaap	Defined Benefit Plan Assumptions Used Calculating Net Periodic Benefit Cost Discount Rate DefinedBenefitPlanAssumptionsUsedCalculatingNetPeriodicBenefitCostDiscountRate	0.0385
CY2016	us-gaap	Defined Benefit Plan Assumptions Used Calculating Net Periodic Benefit Cost Discount Rate DefinedBenefitPlanAssumptionsUsedCalculatingNetPeriodicBenefitCostDiscountRate	0.0419
CY2017	us-gaap	Defined Benefit Plan Assumptions Used Calculating Net Periodic Benefit Cost Discount Rate DefinedBenefitPlanAssumptionsUsedCalculatingNetPeriodicBenefitCostDiscountRate	0.0396
CY2015	us-gaap	Defined Benefit Plan Assumptions Used Calculating Net Periodic Benefit Cost Expected Long Term Return On Assets DefinedBenefitPlanAssumptionsUsedCalculatingNetPeriodicBenefitCostExpectedLongTermReturnOnAssets	0.0725
CY2016	us-gaap	Defined Benefit Plan Assumptions Used Calculating Net Periodic Benefit Cost Expected Long Term Return On Assets DefinedBenefitPlanAssumptionsUsedCalculatingNetPeriodicBenefitCostExpectedLongTermReturnOnAssets	0.0725
CY2017	us-gaap	Defined Benefit Plan Assumptions Used Calculating Net Periodic Benefit Cost Expected Long Term Return On Assets DefinedBenefitPlanAssumptionsUsedCalculatingNetPeriodicBenefitCostExpectedLongTermReturnOnAssets	0.0725
CY2015	us-gaap	Defined Benefit Plan Assumptions Used Calculating Net Periodic Benefit Cost Rate Of Compensation Increase DefinedBenefitPlanAssumptionsUsedCalculatingNetPeriodicBenefitCostRateOfCompensationIncrease	0.0350
CY2016	us-gaap	Defined Benefit Plan Assumptions Used Calculating Net Periodic Benefit Cost Rate Of Compensation Increase DefinedBenefitPlanAssumptionsUsedCalculatingNetPeriodicBenefitCostRateOfCompensationIncrease	0.0350
CY2017	us-gaap	Defined Benefit Plan Assumptions Used Calculating Net Periodic Benefit Cost Rate Of Compensation Increase DefinedBenefitPlanAssumptionsUsedCalculatingNetPeriodicBenefitCostRateOfCompensationIncrease	0.0350
CY2017	us-gaap	Defined Benefit Plan Assumptions Used In Calculations Narrative Description DefinedBenefitPlanAssumptionsUsedInCalculationsNarrativeDescription	A yield curve was produced for a universe containing the majority of U.S.-issued Aa-graded corporate bonds, all of which were non-callable (or callable with make-whole provisions), and after excluding the 10% of the bonds with the highest and lowest yields.
CY2015Q4	us-gaap	Defined Benefit Plan Benefit Obligation DefinedBenefitPlanBenefitObligation	151015000	USD
CY2016Q4	us-gaap	Defined Benefit Plan Benefit Obligation DefinedBenefitPlanBenefitObligation	152916000	USD
CY2017Q4	us-gaap	Defined Benefit Plan Benefit Obligation DefinedBenefitPlanBenefitObligation	181537000	USD
CY2016	us-gaap	Defined Benefit Plan Benefit Obligation Benefits Paid DefinedBenefitPlanBenefitObligationBenefitsPaid	7936000	USD
CY2017	us-gaap	Defined Benefit Plan Benefit Obligation Benefits Paid DefinedBenefitPlanBenefitObligationBenefitsPaid	9728000	USD
CY2016	us-gaap	Defined Benefit Plan Benefit Obligation Payment For Settlement DefinedBenefitPlanBenefitObligationPaymentForSettlement	0	USD
CY2017	us-gaap	Defined Benefit Plan Benefit Obligation Payment For Settlement DefinedBenefitPlanBenefitObligationPaymentForSettlement	7158000	USD
CY2016	us-gaap	Defined Benefit Plan Business Combinations And Acquisitions Benefit Obligation DefinedBenefitPlanBusinessCombinationsAndAcquisitionsBenefitObligation	0	USD
CY2017	us-gaap	Defined Benefit Plan Business Combinations And Acquisitions Benefit Obligation DefinedBenefitPlanBusinessCombinationsAndAcquisitionsBenefitObligation	29613000	USD
CY2016	us-gaap	Defined Benefit Plan Business Combinations And Acquisitions Plan Assets DefinedBenefitPlanBusinessCombinationsAndAcquisitionsPlanAssets	0	USD
CY2017	us-gaap	Defined Benefit Plan Business Combinations And Acquisitions Plan Assets DefinedBenefitPlanBusinessCombinationsAndAcquisitionsPlanAssets	24961000	USD
CY2016	us-gaap	Defined Benefit Plan Contributions By Employer DefinedBenefitPlanContributionsByEmployer	1345000	USD
CY2017	us-gaap	Defined Benefit Plan Contributions By Employer DefinedBenefitPlanContributionsByEmployer	1345000	USD
CY2017Q4	us-gaap	Defined Benefit Plan Expected Future Benefit Payments Five Fiscal Years Thereafter DefinedBenefitPlanExpectedFutureBenefitPaymentsFiveFiscalYearsThereafter	53902000	USD
CY2017Q4	us-gaap	Defined Benefit Plan Expected Future Benefit Payments Next Twelve Months DefinedBenefitPlanExpectedFutureBenefitPaymentsNextTwelveMonths	9474000	USD
CY2017Q4	us-gaap	Defined Benefit Plan Expected Future Benefit Payments Year Five DefinedBenefitPlanExpectedFutureBenefitPaymentsYearFive	10501000	USD
CY2017Q4	us-gaap	Defined Benefit Plan Expected Future Benefit Payments Year Four DefinedBenefitPlanExpectedFutureBenefitPaymentsYearFour	10390000	USD
CY2017Q4	us-gaap	Defined Benefit Plan Expected Future Benefit Payments Year Three DefinedBenefitPlanExpectedFutureBenefitPaymentsYearThree	10227000	USD
CY2017Q4	us-gaap	Defined Benefit Plan Expected Future Benefit Payments Year Two DefinedBenefitPlanExpectedFutureBenefitPaymentsYearTwo	9957000	USD
CY2017Q4	us-gaap	Defined Benefit Plan Expected Future Employer Contributions Next Fiscal Year DefinedBenefitPlanExpectedFutureEmployerContributionsNextFiscalYear	1424000	USD
CY2015	us-gaap	Defined Benefit Plan Expected Return On Plan Assets DefinedBenefitPlanExpectedReturnOnPlanAssets	9964000	USD
CY2016	us-gaap	Defined Benefit Plan Expected Return On Plan Assets DefinedBenefitPlanExpectedReturnOnPlanAssets	9413000	USD
CY2017	us-gaap	Defined Benefit Plan Expected Return On Plan Assets DefinedBenefitPlanExpectedReturnOnPlanAssets	11121000	USD
CY2015Q4	us-gaap	Defined Benefit Plan Fair Value Of Plan Assets DefinedBenefitPlanFairValueOfPlanAssets	132762000	USD
CY2016Q4	us-gaap	Defined Benefit Plan Fair Value Of Plan Assets DefinedBenefitPlanFairValueOfPlanAssets	136958000	USD
CY2017Q4	us-gaap	Defined Benefit Plan Fair Value Of Plan Assets DefinedBenefitPlanFairValueOfPlanAssets	163705000	USD
CY2016Q4	us-gaap	Defined Benefit Plan Funded Status Of Plan DefinedBenefitPlanFundedStatusOfPlan	-15958000	USD
CY2017Q4	us-gaap	Defined Benefit Plan Funded Status Of Plan DefinedBenefitPlanFundedStatusOfPlan	-17832000	USD
CY2015	us-gaap	Defined Benefit Plan Interest Cost DefinedBenefitPlanInterestCost	5897000	USD
CY2016	us-gaap	Defined Benefit Plan Interest Cost DefinedBenefitPlanInterestCost	6129000	USD
CY2017	us-gaap	Defined Benefit Plan Interest Cost DefinedBenefitPlanInterestCost	6846000	USD
CY2015	us-gaap	Defined Benefit Plan Net Periodic Benefit Cost DefinedBenefitPlanNetPeriodicBenefitCost	-1962000	USD
CY2016	us-gaap	Defined Benefit Plan Net Periodic Benefit Cost DefinedBenefitPlanNetPeriodicBenefitCost	-909000	USD
CY2017	us-gaap	Defined Benefit Plan Net Periodic Benefit Cost DefinedBenefitPlanNetPeriodicBenefitCost	-1820000	USD
CY2016	us-gaap	Defined Benefit Plan Plan Assets Benefits Paid DefinedBenefitPlanPlanAssetsBenefitsPaid	7936000	USD
CY2017	us-gaap	Defined Benefit Plan Plan Assets Benefits Paid DefinedBenefitPlanPlanAssetsBenefitsPaid	9728000	USD
CY2015	us-gaap	Defined Benefit Plan Recognized Net Gain Loss Due To Settlements1 DefinedBenefitPlanRecognizedNetGainLossDueToSettlements1	0	USD
CY2016	us-gaap	Defined Benefit Plan Recognized Net Gain Loss Due To Settlements1 DefinedBenefitPlanRecognizedNetGainLossDueToSettlements1	0	USD
CY2017	us-gaap	Defined Benefit Plan Recognized Net Gain Loss Due To Settlements1 DefinedBenefitPlanRecognizedNetGainLossDueToSettlements1	-168000	USD
CY2015	us-gaap	Defined Benefit Plan Service Cost DefinedBenefitPlanServiceCost	-14000	USD
CY2016	us-gaap	Defined Benefit Plan Service Cost DefinedBenefitPlanServiceCost	-15000	USD
CY2017	us-gaap	Defined Benefit Plan Service Cost DefinedBenefitPlanServiceCost	-13000	USD
CY2016	us-gaap	Defined Benefit Plan Settlements Plan Assets DefinedBenefitPlanSettlementsPlanAssets	0	USD
CY2017	us-gaap	Defined Benefit Plan Settlements Plan Assets DefinedBenefitPlanSettlementsPlanAssets	7158000	USD
CY2015	us-gaap	Defined Contribution Plan Cost Recognized DefinedContributionPlanCostRecognized	8055000	USD
CY2016	us-gaap	Defined Contribution Plan Cost Recognized DefinedContributionPlanCostRecognized	9069000	USD
CY2017	us-gaap	Defined Contribution Plan Cost Recognized DefinedContributionPlanCostRecognized	12286000	USD
CY2017	us-gaap	Defined Contribution Plan Employer Matching Contribution Percent DefinedContributionPlanEmployerMatchingContributionPercent	0.06
CY2017	us-gaap	Defined Contribution Plan Employer Matching Contribution Percent Of Match DefinedContributionPlanEmployerMatchingContributionPercentOfMatch	1
CY2016Q4	us-gaap	Deposits Deposits	16065647000	USD
CY2017Q4	us-gaap	Deposits Deposits	22399725000	USD
CY2016Q4	us-gaap	Deposits Money Market Deposits And Negotiable Order Of Withdrawal Now DepositsMoneyMarketDepositsAndNegotiableOrderOfWithdrawalNOW	6931381000	USD
CY2017Q4	us-gaap	Deposits Money Market Deposits And Negotiable Order Of Withdrawal Now DepositsMoneyMarketDepositsAndNegotiableOrderOfWithdrawalNOW	9571038000	USD
CY2016Q4	us-gaap	Deposits Savings Deposits DepositsSavingsDeposits	2352434000	USD
CY2017Q4	us-gaap	Deposits Savings Deposits DepositsSavingsDeposits	2488178000	USD
CY2015	us-gaap	Depreciation Depreciation	20009000	USD
CY2016	us-gaap	Depreciation Depreciation	23355000	USD
CY2017	us-gaap	Depreciation Depreciation	34322000	USD
CY2015	us-gaap	Depreciation Amortization And Accretion Net DepreciationAmortizationAndAccretionNet	43949000	USD
CY2016	us-gaap	Depreciation Amortization And Accretion Net DepreciationAmortizationAndAccretionNet	60503000	USD
CY2017	us-gaap	Depreciation Amortization And Accretion Net DepreciationAmortizationAndAccretionNet	88797000	USD
CY2016Q4	us-gaap	Derivative Asset Not Subject To Master Netting Arrangement DerivativeAssetNotSubjectToMasterNettingArrangement	32183000	USD
CY2017Q4	us-gaap	Derivative Asset Not Subject To Master Netting Arrangement DerivativeAssetNotSubjectToMasterNettingArrangement	29099000	USD
CY2016Q4	us-gaap	Derivative Assets DerivativeAssets	54220000	USD
CY2017Q4	us-gaap	Derivative Assets DerivativeAssets	30547000	USD
CY2016Q4	us-gaap	Derivative Collateral Obligation To Return Cash DerivativeCollateralObligationToReturnCash	20545000	USD
CY2017Q4	us-gaap	Derivative Collateral Obligation To Return Cash DerivativeCollateralObligationToReturnCash	0	USD
CY2016Q4	us-gaap	Derivative Collateral Obligation To Return Securities DerivativeCollateralObligationToReturnSecurities	1378000	USD
CY2017Q4	us-gaap	Derivative Collateral Obligation To Return Securities DerivativeCollateralObligationToReturnSecurities	1448000	USD
CY2016Q4	us-gaap	Derivative Collateral Right To Reclaim Cash DerivativeCollateralRightToReclaimCash	17651000	USD
CY2017Q4	us-gaap	Derivative Collateral Right To Reclaim Cash DerivativeCollateralRightToReclaimCash	0	USD
CY2016Q4	us-gaap	Derivative Collateral Right To Reclaim Securities DerivativeCollateralRightToReclaimSecurities	16661000	USD
CY2017Q4	us-gaap	Derivative Collateral Right To Reclaim Securities DerivativeCollateralRightToReclaimSecurities	12922000	USD
CY2016Q4	us-gaap	Derivative Fair Value Of Derivative Asset Amount Not Offset Against Collateral DerivativeFairValueOfDerivativeAssetAmountNotOffsetAgainstCollateral	22037000	USD
CY2017Q4	us-gaap	Derivative Fair Value Of Derivative Asset Amount Not Offset Against Collateral DerivativeFairValueOfDerivativeAssetAmountNotOffsetAgainstCollateral	1448000	USD
CY2016Q4	us-gaap	Derivative Fair Value Of Derivative Asset Amount Offset Against Collateral DerivativeFairValueOfDerivativeAssetAmountOffsetAgainstCollateral	114000	USD
CY2017Q4	us-gaap	Derivative Fair Value Of Derivative Asset Amount Offset Against Collateral DerivativeFairValueOfDerivativeAssetAmountOffsetAgainstCollateral	0	USD
CY2016Q4	us-gaap	Derivative Fair Value Of Derivative Liability Amount Not Offset Against Collateral DerivativeFairValueOfDerivativeLiabilityAmountNotOffsetAgainstCollateral	35217000	USD
CY2017Q4	us-gaap	Derivative Fair Value Of Derivative Liability Amount Not Offset Against Collateral DerivativeFairValueOfDerivativeLiabilityAmountNotOffsetAgainstCollateral	13581000	USD
CY2016Q4	us-gaap	Derivative Fair Value Of Derivative Liability Amount Offset Against Collateral DerivativeFairValueOfDerivativeLiabilityAmountOffsetAgainstCollateral	905000	USD
CY2017Q4	us-gaap	Derivative Fair Value Of Derivative Liability Amount Offset Against Collateral DerivativeFairValueOfDerivativeLiabilityAmountOffsetAgainstCollateral	659000	USD
CY2016Q4	us-gaap	Derivative Liabilities DerivativeLiabilities	47267000	USD
CY2017Q4	us-gaap	Derivative Liabilities DerivativeLiabilities	29197000	USD
CY2016Q4	us-gaap	Derivative Liability Not Subject To Master Netting Arrangement DerivativeLiabilityNotSubjectToMasterNettingArrangement	12050000	USD
CY2017Q4	us-gaap	Derivative Liability Not Subject To Master Netting Arrangement DerivativeLiabilityNotSubjectToMasterNettingArrangement	15616000	USD
CY2015	us-gaap	Dividend Income Operating DividendIncomeOperating	39000	USD
CY2016	us-gaap	Dividend Income Operating DividendIncomeOperating	34000	USD
CY2017	us-gaap	Dividend Income Operating DividendIncomeOperating	88000	USD
CY2015	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	84511000	USD
CY2016	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	101670000	USD
CY2017	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	142618000	USD
CY2015	us-gaap	Dividends Preferred Stock DividendsPreferredStock	8041000	USD
CY2016	us-gaap	Dividends Preferred Stock DividendsPreferredStock	8041000	USD
CY2017	us-gaap	Dividends Preferred Stock DividendsPreferredStock	8041000	USD
CY2015	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.87
CY2016Q1	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.12
CY2016Q2	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.19
CY2016Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.24
CY2016Q4	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.23
CY2016	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.79
CY2017Q1	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.09
CY2017Q2	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.22
CY2017Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.23
CY2017Q4	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.07
CY2017	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.63
CY2015	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.86
CY2016Q1	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.12
CY2016Q2	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.19
CY2016Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.24
CY2016Q4	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.23
CY2016	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.78
CY2017Q1	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.09
CY2017Q2	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.22
CY2017Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.23
CY2017Q4	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.07
CY2017	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.63
CY2015	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.3050
CY2016	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.3060
CY2017	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.4410
CY2015	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.350
CY2016	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.350
CY2017	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.350
CY2015	us-gaap	Effective Income Tax Rate Reconciliation Change In Deferred Tax Assets Valuation Allowance EffectiveIncomeTaxRateReconciliationChangeInDeferredTaxAssetsValuationAllowance	-0.0080
CY2016	us-gaap	Effective Income Tax Rate Reconciliation Change In Deferred Tax Assets Valuation Allowance EffectiveIncomeTaxRateReconciliationChangeInDeferredTaxAssetsValuationAllowance	0.0000
CY2017	us-gaap	Effective Income Tax Rate Reconciliation Change In Deferred Tax Assets Valuation Allowance EffectiveIncomeTaxRateReconciliationChangeInDeferredTaxAssetsValuationAllowance	0.0000
CY2015	us-gaap	Effective Income Tax Rate Reconciliation Change In Enacted Tax Rate EffectiveIncomeTaxRateReconciliationChangeInEnactedTaxRate	0.0000
CY2016	us-gaap	Effective Income Tax Rate Reconciliation Change In Enacted Tax Rate EffectiveIncomeTaxRateReconciliationChangeInEnactedTaxRate	0.0000
CY2017	us-gaap	Effective Income Tax Rate Reconciliation Change In Enacted Tax Rate EffectiveIncomeTaxRateReconciliationChangeInEnactedTaxRate	0.0020
CY2015	us-gaap	Effective Income Tax Rate Reconciliation Other Adjustments EffectiveIncomeTaxRateReconciliationOtherAdjustments	0.0010
CY2016	us-gaap	Effective Income Tax Rate Reconciliation Other Adjustments EffectiveIncomeTaxRateReconciliationOtherAdjustments	0.0020
CY2017	us-gaap	Effective Income Tax Rate Reconciliation Other Adjustments EffectiveIncomeTaxRateReconciliationOtherAdjustments	0.0020
CY2015	us-gaap	Effective Income Tax Rate Reconciliation State And Local Income Taxes EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes	0.0080
CY2016	us-gaap	Effective Income Tax Rate Reconciliation State And Local Income Taxes EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes	0.0070
CY2017	us-gaap	Effective Income Tax Rate Reconciliation State And Local Income Taxes EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes	0.0050
CY2015	us-gaap	Effective Income Tax Rate Reconciliation Tax Credits EffectiveIncomeTaxRateReconciliationTaxCredits	0.0110
CY2016	us-gaap	Effective Income Tax Rate Reconciliation Tax Credits EffectiveIncomeTaxRateReconciliationTaxCredits	0.0090
CY2017	us-gaap	Effective Income Tax Rate Reconciliation Tax Credits EffectiveIncomeTaxRateReconciliationTaxCredits	0.0260
CY2015	us-gaap	Effective Income Tax Rate Reconciliation Tax Exempt Income EffectiveIncomeTaxRateReconciliationTaxExemptIncome	0.0220
CY2016	us-gaap	Effective Income Tax Rate Reconciliation Tax Exempt Income EffectiveIncomeTaxRateReconciliationTaxExemptIncome	0.0290
CY2017	us-gaap	Effective Income Tax Rate Reconciliation Tax Exempt Income EffectiveIncomeTaxRateReconciliationTaxExemptIncome	0.0330
CY2017Q4	us-gaap	Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized	12099000	USD
CY2015	us-gaap	Equipment Expense EquipmentExpense	31869000	USD
CY2016	us-gaap	Equipment Expense EquipmentExpense	38046000	USD
CY2017	us-gaap	Equipment Expense EquipmentExpense	49361000	USD
CY2015	us-gaap	Excess Tax Benefit From Share Based Compensation Financing Activities ExcessTaxBenefitFromShareBasedCompensationFinancingActivities	28000	USD
CY2016	us-gaap	Excess Tax Benefit From Share Based Compensation Financing Activities ExcessTaxBenefitFromShareBasedCompensationFinancingActivities	1813000	USD
CY2017	us-gaap	Excess Tax Benefit From Share Based Compensation Financing Activities ExcessTaxBenefitFromShareBasedCompensationFinancingActivities	0	USD
CY2015	us-gaap	Excess Tax Benefit From Share Based Compensation Operating Activities ExcessTaxBenefitFromShareBasedCompensationOperatingActivities	28000	USD
CY2016	us-gaap	Excess Tax Benefit From Share Based Compensation Operating Activities ExcessTaxBenefitFromShareBasedCompensationOperatingActivities	1813000	USD
CY2017	us-gaap	Excess Tax Benefit From Share Based Compensation Operating Activities ExcessTaxBenefitFromShareBasedCompensationOperatingActivities	822000	USD
CY2015	us-gaap	Federal Deposit Insurance Corporation Premium Expense FederalDepositInsuranceCorporationPremiumExpense	12888000	USD
CY2016	us-gaap	Federal Deposit Insurance Corporation Premium Expense FederalDepositInsuranceCorporationPremiumExpense	19203000	USD
CY2017	us-gaap	Federal Deposit Insurance Corporation Premium Expense FederalDepositInsuranceCorporationPremiumExpense	32902000	USD
CY2016Q4	us-gaap	Federal Funds Purchased FederalFundsPurchased	1037000000	USD
CY2017Q4	us-gaap	Federal Funds Purchased FederalFundsPurchased	1000000000	USD
CY2016Q4	us-gaap	Federal Home Loan Bank Advances Long Term FederalHomeLoanBankAdvancesLongTerm	305110000	USD
CY2017Q4	us-gaap	Federal Home Loan Bank Advances Long Term FederalHomeLoanBankAdvancesLongTerm	310061000	USD
CY2016Q4	us-gaap	Federal Home Loan Bank Advances Maturities Summary Due Within One Year Of Balance Sheet Date FederalHomeLoanBankAdvancesMaturitiesSummaryDueWithinOneYearOfBalanceSheetDate	1025000000	USD
CY2017Q4	us-gaap	Federal Home Loan Bank Advances Maturities Summary Due Within One Year Of Balance Sheet Date FederalHomeLoanBankAdvancesMaturitiesSummaryDueWithinOneYearOfBalanceSheetDate	2285000000	USD
CY2016Q4	us-gaap	Federal Home Loan Bank Stock FederalHomeLoanBankStock	85000000	USD
CY2017Q4	us-gaap	Federal Home Loan Bank Stock FederalHomeLoanBankStock	160500000	USD
CY2015	us-gaap	Fees And Commissions FeesAndCommissions	69877000	USD
CY2016	us-gaap	Fees And Commissions FeesAndCommissions	97524000	USD
CY2017	us-gaap	Fees And Commissions FeesAndCommissions	124310000	USD
CY2015	us-gaap	Fees And Commissions Fiduciary And Trust Activities FeesAndCommissionsFiduciaryAndTrustActivities	20934000	USD
CY2016	us-gaap	Fees And Commissions Fiduciary And Trust Activities FeesAndCommissionsFiduciaryAndTrustActivities	21173000	USD
CY2017	us-gaap	Fees And Commissions Fiduciary And Trust Activities FeesAndCommissionsFiduciaryAndTrustActivities	23121000	USD
CY2015	us-gaap	Fees And Commissions Mortgage Banking FeesAndCommissionsMortgageBanking	8619000	USD
CY2016	us-gaap	Fees And Commissions Mortgage Banking FeesAndCommissionsMortgageBanking	12106000	USD
CY2017	us-gaap	Fees And Commissions Mortgage Banking FeesAndCommissionsMortgageBanking	19977000	USD
CY2016	us-gaap	Financing Receivable Modifications Number Of Contracts2 FinancingReceivableModificationsNumberOfContracts2	679	Contract
CY2017	us-gaap	Financing Receivable Modifications Number Of Contracts2 FinancingReceivableModificationsNumberOfContracts2	772	Contract
CY2016	us-gaap	Financing Receivable Modifications Post Modification Recorded Investment2 FinancingReceivableModificationsPostModificationRecordedInvestment2	11222000	USD
CY2017	us-gaap	Financing Receivable Modifications Post Modification Recorded Investment2 FinancingReceivableModificationsPostModificationRecordedInvestment2	12570000	USD
CY2016	us-gaap	Financing Receivable Modifications Pre Modification Recorded Investment2 FinancingReceivableModificationsPreModificationRecordedInvestment2	12220000	USD
CY2017	us-gaap	Financing Receivable Modifications Pre Modification Recorded Investment2 FinancingReceivableModificationsPreModificationRecordedInvestment2	13954000	USD
CY2017Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Two FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo	13532000	USD
CY2016Q4	us-gaap	Financing Receivable Modifications Recorded Investment FinancingReceivableModificationsRecordedInvestment	46933000	USD
CY2017Q4	us-gaap	Financing Receivable Modifications Recorded Investment FinancingReceivableModificationsRecordedInvestment	53991000	USD
CY2016Q4	us-gaap	Finite Lived Intangible Assets Gross FiniteLivedIntangibleAssetsGross	152238000	USD
CY2017Q4	us-gaap	Finite Lived Intangible Assets Gross FiniteLivedIntangibleAssetsGross	208024000	USD
CY2017Q4	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	62644000	USD
CY2016	us-gaap	Financing Receivable Modifications Subsequent Default Number Of Contracts1 FinancingReceivableModificationsSubsequentDefaultNumberOfContracts1	118	Contract
CY2017	us-gaap	Financing Receivable Modifications Subsequent Default Number Of Contracts1 FinancingReceivableModificationsSubsequentDefaultNumberOfContracts1	160	Contract
CY2016	us-gaap	Financing Receivable Modifications Subsequent Default Recorded Investment1 FinancingReceivableModificationsSubsequentDefaultRecordedInvestment1	1027000	USD
CY2017	us-gaap	Financing Receivable Modifications Subsequent Default Recorded Investment1 FinancingReceivableModificationsSubsequentDefaultRecordedInvestment1	1333000	USD
CY2016Q4	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	98432000	USD
CY2017Q4	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	115949000	USD
CY2017Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Next Twelve Months FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths	15633000	USD
CY2017Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Five FiniteLivedIntangibleAssetsAmortizationExpenseYearFive	9637000	USD
CY2017Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Four FiniteLivedIntangibleAssetsAmortizationExpenseYearFour	11339000	USD
CY2017Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Three FiniteLivedIntangibleAssetsAmortizationExpenseYearThree	12503000	USD
CY2015	us-gaap	Gain Loss On Sale Of Loans And Leases GainLossOnSaleOfLoansAndLeases	8666000	USD
CY2016	us-gaap	Gain Loss On Sale Of Loans And Leases GainLossOnSaleOfLoansAndLeases	10746000	USD
CY2017	us-gaap	Gain Loss On Sale Of Loans And Leases GainLossOnSaleOfLoansAndLeases	17223000	USD
CY2015	us-gaap	Gain Loss On Sale Of Securities Net GainLossOnSaleOfSecuritiesNet	822000	USD
CY2016Q1	us-gaap	Gain Loss On Sale Of Securities Net GainLossOnSaleOfSecuritiesNet	71000	USD
CY2016Q2	us-gaap	Gain Loss On Sale Of Securities Net GainLossOnSaleOfSecuritiesNet	226000	USD
CY2016Q3	us-gaap	Gain Loss On Sale Of Securities Net GainLossOnSaleOfSecuritiesNet	299000	USD
CY2016Q4	us-gaap	Gain Loss On Sale Of Securities Net GainLossOnSaleOfSecuritiesNet	116000	USD
CY2016	us-gaap	Gain Loss On Sale Of Securities Net GainLossOnSaleOfSecuritiesNet	712000	USD
CY2017Q1	us-gaap	Gain Loss On Sale Of Securities Net GainLossOnSaleOfSecuritiesNet	2625000	USD
CY2017Q2	us-gaap	Gain Loss On Sale Of Securities Net GainLossOnSaleOfSecuritiesNet	493000	USD
CY2017Q3	us-gaap	Gain Loss On Sale Of Securities Net GainLossOnSaleOfSecuritiesNet	2777000	USD
CY2017Q4	us-gaap	Gain Loss On Sale Of Securities Net GainLossOnSaleOfSecuritiesNet	21000	USD
CY2017	us-gaap	Gain Loss On Sale Of Securities Net GainLossOnSaleOfSecuritiesNet	5916000	USD
CY2015Q4	us-gaap	Goodwill Goodwill	833086000	USD
CY2016Q4	us-gaap	Goodwill Goodwill	1032129000	USD
CY2017Q4	us-gaap	Goodwill Goodwill	2249188000	USD
CY2016	us-gaap	Goodwill Period Increase Decrease GoodwillPeriodIncreaseDecrease	199043000	USD
CY2017	us-gaap	Goodwill Period Increase Decrease GoodwillPeriodIncreaseDecrease	1217059000	USD
CY2016Q4	us-gaap	Held To Maturity Securities HeldToMaturitySecurities	2337342000	USD
CY2017Q4	us-gaap	Held To Maturity Securities HeldToMaturitySecurities	3242268000	USD
CY2016Q4	us-gaap	Held To Maturity Securities Accumulated Unrecognized Holding Gain HeldToMaturitySecuritiesAccumulatedUnrecognizedHoldingGain	8226000	USD
CY2017Q4	us-gaap	Held To Maturity Securities Accumulated Unrecognized Holding Gain HeldToMaturitySecuritiesAccumulatedUnrecognizedHoldingGain	17357000	USD
CY2016Q4	us-gaap	Held To Maturity Securities Accumulated Unrecognized Holding Loss HeldToMaturitySecuritiesAccumulatedUnrecognizedHoldingLoss	50791000	USD
CY2017Q4	us-gaap	Held To Maturity Securities Accumulated Unrecognized Holding Loss HeldToMaturitySecuritiesAccumulatedUnrecognizedHoldingLoss	41246000	USD
CY2016Q4	us-gaap	Held To Maturity Securities Continuous Unrealized Loss Position12 Months Or Longer Accumulated Loss HeldToMaturitySecuritiesContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss	4307000	USD
CY2017Q4	us-gaap	Held To Maturity Securities Continuous Unrealized Loss Position12 Months Or Longer Accumulated Loss HeldToMaturitySecuritiesContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss	33395000	USD
CY2016Q4	us-gaap	Held To Maturity Securities Continuous Unrealized Loss Position Accumulated Loss HeldToMaturitySecuritiesContinuousUnrealizedLossPositionAccumulatedLoss	50791000	USD
CY2016Q4	us-gaap	Held To Maturity Securities Continuous Unrealized Loss Position Less Than12 Months Accumulated Loss HeldToMaturitySecuritiesContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss	46484000	USD
CY2017Q4	us-gaap	Held To Maturity Securities Continuous Unrealized Loss Position Accumulated Loss HeldToMaturitySecuritiesContinuousUnrealizedLossPositionAccumulatedLoss	41246000	USD
CY2016Q4	us-gaap	Held To Maturity Securities Continuous Unrealized Loss Position Fair Value HeldToMaturitySecuritiesContinuousUnrealizedLossPositionFairValue	1634869000	USD
CY2017Q4	us-gaap	Held To Maturity Securities Continuous Unrealized Loss Position Fair Value HeldToMaturitySecuritiesContinuousUnrealizedLossPositionFairValue	2045779000	USD
CY2016Q4	us-gaap	Held To Maturity Securities Continuous Unrealized Loss Position Twelve Months Or Longer Fair Value HeldToMaturitySecuritiesContinuousUnrealizedLossPositionTwelveMonthsOrLongerFairValue	120957000	USD
CY2017Q4	us-gaap	Held To Maturity Securities Continuous Unrealized Loss Position Twelve Months Or Longer Fair Value HeldToMaturitySecuritiesContinuousUnrealizedLossPositionTwelveMonthsOrLongerFairValue	984076000	USD
CY2016	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	246388000	USD
CY2017	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	356269000	USD
CY2017Q4	us-gaap	Held To Maturity Securities Continuous Unrealized Loss Position Less Than12 Months Accumulated Loss HeldToMaturitySecuritiesContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss	7851000	USD
CY2016Q4	us-gaap	Held To Maturity Securities Continuous Unrealized Loss Position Less Than Twelve Months Fair Value HeldToMaturitySecuritiesContinuousUnrealizedLossPositionLessThanTwelveMonthsFairValue	1513912000	USD
CY2017Q4	us-gaap	Held To Maturity Securities Continuous Unrealized Loss Position Less Than Twelve Months Fair Value HeldToMaturitySecuritiesContinuousUnrealizedLossPositionLessThanTwelveMonthsFairValue	1061703000	USD
CY2017Q4	us-gaap	Held To Maturity Securities Debt Maturities After Five Through Ten Years Fair Value HeldToMaturitySecuritiesDebtMaturitiesAfterFiveThroughTenYearsFairValue	82672000	USD
CY2017Q4	us-gaap	Held To Maturity Securities Debt Maturities After Five Through Ten Years Net Carrying Amount HeldToMaturitySecuritiesDebtMaturitiesAfterFiveThroughTenYearsNetCarryingAmount	81650000	USD
CY2017Q4	us-gaap	Held To Maturity Securities Debt Maturities After One Through Five Years Fair Value HeldToMaturitySecuritiesDebtMaturitiesAfterOneThroughFiveYearsFairValue	220921000	USD
CY2017Q4	us-gaap	Held To Maturity Securities Debt Maturities After One Through Five Years Net Carrying Amount HeldToMaturitySecuritiesDebtMaturitiesAfterOneThroughFiveYearsNetCarryingAmount	225054000	USD
CY2017Q4	us-gaap	Held To Maturity Securities Debt Maturities After Ten Years Fair Value HeldToMaturitySecuritiesDebtMaturitiesAfterTenYearsFairValue	832605000	USD
CY2017Q4	us-gaap	Held To Maturity Securities Debt Maturities After Ten Years Net Carrying Amount HeldToMaturitySecuritiesDebtMaturitiesAfterTenYearsNetCarryingAmount	827392000	USD
CY2017Q4	us-gaap	Held To Maturity Securities Debt Maturities Within One Year Fair Value HeldToMaturitySecuritiesDebtMaturitiesWithinOneYearFairValue	30254000	USD
CY2017Q4	us-gaap	Held To Maturity Securities Debt Maturities Within One Year Net Carrying Amount HeldToMaturitySecuritiesDebtMaturitiesWithinOneYearNetCarryingAmount	30438000	USD
CY2016Q4	us-gaap	Held To Maturity Securities Fair Value HeldToMaturitySecuritiesFairValue	2294777000	USD
CY2017Q4	us-gaap	Held To Maturity Securities Fair Value HeldToMaturitySecuritiesFairValue	3218379000	USD
CY2016Q4	us-gaap	Held To Maturity Securities In Unrealized Loss Positions Qualitative Disclosure Number Of Positions HeldToMaturitySecuritiesInUnrealizedLossPositionsQualitativeDisclosureNumberOfPositions	186	Security
CY2017Q4	us-gaap	Held To Maturity Securities In Unrealized Loss Positions Qualitative Disclosure Number Of Positions HeldToMaturitySecuritiesInUnrealizedLossPositionsQualitativeDisclosureNumberOfPositions	168	Security
CY2017Q4	us-gaap	Held To Maturity Securities Sold Security At Carrying Value HeldToMaturitySecuritiesSoldSecurityAtCarryingValue	54900000	USD
CY2017	us-gaap	Heldtomaturity Securities Sold Security Realized Gain Loss Excluding Other Than Temporary Impairments HeldtomaturitySecuritiesSoldSecurityRealizedGainLossExcludingOtherThanTemporaryImpairments	2200000	USD
CY2015	us-gaap	Impaired Financing Receivable Interest Income Accrual Method ImpairedFinancingReceivableInterestIncomeAccrualMethod	4100000	USD
CY2016	us-gaap	Impaired Financing Receivable Interest Income Accrual Method ImpairedFinancingReceivableInterestIncomeAccrualMethod	4600000	USD
CY2017	us-gaap	Impaired Financing Receivable Interest Income Accrual Method ImpairedFinancingReceivableInterestIncomeAccrualMethod	6100000	USD
CY2015	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	229642000	USD
CY2017	us-gaap	Income Tax Examination Likelihood Of Unfavorable Settlement IncomeTaxExaminationLikelihoodOfUnfavorableSettlement	Greater than 50%
CY2015	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	69993000	USD
CY2016	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	75497000	USD
CY2017	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	157065000	USD
CY2015	us-gaap	Income Taxes Paid IncomeTaxesPaid	61500000	USD
CY2016	us-gaap	Income Taxes Paid IncomeTaxesPaid	60000000	USD
CY2017	us-gaap	Income Taxes Paid IncomeTaxesPaid	52500000	USD
CY2015	us-gaap	Increase Decrease In Accrued Interest Receivable Net IncreaseDecreaseInAccruedInterestReceivableNet	4688000	USD
CY2016	us-gaap	Increase Decrease In Accrued Interest Receivable Net IncreaseDecreaseInAccruedInterestReceivableNet	5214000	USD
CY2017	us-gaap	Increase Decrease In Accrued Interest Receivable Net IncreaseDecreaseInAccruedInterestReceivableNet	18143000	USD
CY2015	us-gaap	Increase Decrease In Interest Payable Net IncreaseDecreaseInInterestPayableNet	760000	USD
CY2016	us-gaap	Increase Decrease In Interest Payable Net IncreaseDecreaseInInterestPayableNet	-150000	USD
CY2017	us-gaap	Increase Decrease In Interest Payable Net IncreaseDecreaseInInterestPayableNet	1978000	USD
CY2015	us-gaap	Increase Decrease In Other Operating Capital Net IncreaseDecreaseInOtherOperatingCapitalNet	11333000	USD
CY2016	us-gaap	Increase Decrease In Other Operating Capital Net IncreaseDecreaseInOtherOperatingCapitalNet	-10702000	USD
CY2017	us-gaap	Increase Decrease In Other Operating Capital Net IncreaseDecreaseInOtherOperatingCapitalNet	96718000	USD
CY2015	us-gaap	Increase Decrease In Time Deposits IncreaseDecreaseInTimeDeposits	-166283000	USD
CY2016	us-gaap	Increase Decrease In Time Deposits IncreaseDecreaseInTimeDeposits	-119734000	USD
CY2017	us-gaap	Increase Decrease In Time Deposits IncreaseDecreaseInTimeDeposits	757021000	USD
CY2015	us-gaap	Insurance Commissions And Fees InsuranceCommissionsAndFees	16270000	USD
CY2016Q4	us-gaap	Intangible Assets Net Including Goodwill IntangibleAssetsNetIncludingGoodwill	1085935000	USD
CY2017	us-gaap	Interest Expense Deposits InterestExpenseDeposits	71582000	USD
CY2015	us-gaap	Interest Expense Long Term Debt InterestExpenseLongTermDebt	10291000	USD
CY2016	us-gaap	Interest Expense Long Term Debt InterestExpenseLongTermDebt	14029000	USD
CY2017	us-gaap	Interest Expense Long Term Debt InterestExpenseLongTermDebt	18341000	USD
CY2015	us-gaap	Interest Expense Short Term Borrowings InterestExpenseShortTermBorrowings	7075000	USD
CY2016	us-gaap	Insurance Commissions And Fees InsuranceCommissionsAndFees	18328000	USD
CY2017	us-gaap	Insurance Commissions And Fees InsuranceCommissionsAndFees	19063000	USD
CY2016Q4	us-gaap	Intangible Assets Net Excluding Goodwill IntangibleAssetsNetExcludingGoodwill	53806000	USD
CY2017Q4	us-gaap	Intangible Assets Net Excluding Goodwill IntangibleAssetsNetExcludingGoodwill	92075000	USD
CY2015Q4	us-gaap	Intangible Assets Net Including Goodwill IntangibleAssetsNetIncludingGoodwill	869809000	USD
CY2017Q4	us-gaap	Intangible Assets Net Including Goodwill IntangibleAssetsNetIncludingGoodwill	2341263000	USD
CY2015	us-gaap	Interest And Dividend Income Operating InterestAndDividendIncomeOperating	546795000	USD
CY2016Q1	us-gaap	Interest And Dividend Income Operating InterestAndDividendIncomeOperating	155754000	USD
CY2016Q2	us-gaap	Interest And Dividend Income Operating InterestAndDividendIncomeOperating	170931000	USD
CY2016Q3	us-gaap	Interest And Dividend Income Operating InterestAndDividendIncomeOperating	175110000	USD
CY2016Q4	us-gaap	Interest And Dividend Income Operating InterestAndDividendIncomeOperating	177168000	USD
CY2016	us-gaap	Interest And Dividend Income Operating InterestAndDividendIncomeOperating	678963000	USD
CY2017Q1	us-gaap	Interest And Dividend Income Operating InterestAndDividendIncomeOperating	194693000	USD
CY2017Q2	us-gaap	Interest And Dividend Income Operating InterestAndDividendIncomeOperating	251034000	USD
CY2017Q3	us-gaap	Interest And Dividend Income Operating InterestAndDividendIncomeOperating	263514000	USD
CY2017Q4	us-gaap	Interest And Dividend Income Operating InterestAndDividendIncomeOperating	271085000	USD
CY2017	us-gaap	Interest And Dividend Income Operating InterestAndDividendIncomeOperating	980326000	USD
CY2015	us-gaap	Interest And Fee Income Loans And Leases InterestAndFeeIncomeLoansAndLeases	482086000	USD
CY2016	us-gaap	Interest And Fee Income Loans And Leases InterestAndFeeIncomeLoansAndLeases	597621000	USD
CY2017	us-gaap	Interest And Fee Income Loans And Leases InterestAndFeeIncomeLoansAndLeases	861867000	USD
CY2016Q4	us-gaap	Interest Bearing Deposits In Banks InterestBearingDepositsInBanks	67881000	USD
CY2017Q4	us-gaap	Interest Bearing Deposits In Banks InterestBearingDepositsInBanks	70725000	USD
CY2015	us-gaap	Interest Expense InterestExpense	48573000	USD
CY2016Q1	us-gaap	Interest Expense InterestExpense	15400000	USD
CY2016Q2	us-gaap	Interest Expense InterestExpense	16562000	USD
CY2016Q3	us-gaap	Interest Expense InterestExpense	17604000	USD
CY2016Q4	us-gaap	Interest Expense InterestExpense	17885000	USD
CY2016	us-gaap	Interest Expense InterestExpense	67451000	USD
CY2017Q1	us-gaap	Interest Expense InterestExpense	21941000	USD
CY2017Q2	us-gaap	Interest Expense InterestExpense	32619000	USD
CY2017Q3	us-gaap	Interest Expense InterestExpense	38283000	USD
CY2017Q4	us-gaap	Interest Expense InterestExpense	41049000	USD
CY2017	us-gaap	Interest Expense InterestExpense	133892000	USD
CY2015	us-gaap	Interest Expense Deposits InterestExpenseDeposits	31207000	USD
CY2016	us-gaap	Interest Expense Deposits InterestExpenseDeposits	41239000	USD
CY2016	us-gaap	Interest Expense Short Term Borrowings InterestExpenseShortTermBorrowings	12183000	USD
CY2017	us-gaap	Interest Expense Short Term Borrowings InterestExpenseShortTermBorrowings	43969000	USD
CY2015	us-gaap	Interest Income Expense After Provision For Loan Loss InterestIncomeExpenseAfterProvisionForLoanLoss	457781000	USD
CY2017Q1	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	172752000	USD
CY2016	us-gaap	Interest Income Expense After Provision For Loan Loss InterestIncomeExpenseAfterProvisionForLoanLoss	555760000	USD
CY2017	us-gaap	Interest Income Expense After Provision For Loan Loss InterestIncomeExpenseAfterProvisionForLoanLoss	785361000	USD
CY2015	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	498222000	USD
CY2016Q1	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	140354000	USD
CY2016Q2	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	154369000	USD
CY2016Q3	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	157506000	USD
CY2016Q4	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	159283000	USD
CY2016	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	611512000	USD
CY2017Q2	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	218415000	USD
CY2017Q3	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	225231000	USD
CY2017Q4	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	230036000	USD
CY2017	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	846434000	USD
CY2015	us-gaap	Interest Income Securities Tax Exempt InterestIncomeSecuritiesTaxExempt	6405000	USD
CY2016	us-gaap	Interest Income Securities Tax Exempt InterestIncomeSecuritiesTaxExempt	9011000	USD
CY2017	us-gaap	Interest Income Securities Tax Exempt InterestIncomeSecuritiesTaxExempt	19741000	USD
CY2015	us-gaap	Interest Income Securities Taxable InterestIncomeSecuritiesTaxable	58148000	USD
CY2016	us-gaap	Interest Income Securities Taxable InterestIncomeSecuritiesTaxable	71853000	USD
CY2017	us-gaap	Interest Income Securities Taxable InterestIncomeSecuritiesTaxable	97728000	USD
CY2015	us-gaap	Interest Paid InterestPaid	47805000	USD
CY2016	us-gaap	Interest Paid InterestPaid	67296000	USD
CY2017	us-gaap	Interest Paid InterestPaid	129024000	USD
CY2015	us-gaap	Investment Banking Advisory Brokerage And Underwriting Fees And Commissions InvestmentBankingAdvisoryBrokerageAndUnderwritingFeesAndCommissions	13642000	USD
CY2016	us-gaap	Investment Banking Advisory Brokerage And Underwriting Fees And Commissions InvestmentBankingAdvisoryBrokerageAndUnderwritingFeesAndCommissions	13468000	USD
CY2017	us-gaap	Investment Banking Advisory Brokerage And Underwriting Fees And Commissions InvestmentBankingAdvisoryBrokerageAndUnderwritingFeesAndCommissions	15286000	USD
CY2016Q4	us-gaap	Junior Subordinated Debenture Owed To Unconsolidated Subsidiary Trust JuniorSubordinatedDebentureOwedToUnconsolidatedSubsidiaryTrust	48600000	USD
CY2017Q4	us-gaap	Junior Subordinated Debenture Owed To Unconsolidated Subsidiary Trust JuniorSubordinatedDebentureOwedToUnconsolidatedSubsidiaryTrust	110347000	USD
CY2015	us-gaap	Labor And Related Expense LaborAndRelatedExpense	202068000	USD
CY2016	us-gaap	Labor And Related Expense LaborAndRelatedExpense	239798000	USD
CY2017	us-gaap	Labor And Related Expense LaborAndRelatedExpense	326893000	USD
CY2016Q4	us-gaap	Land Land	45640000	USD
CY2017Q4	us-gaap	Land Land	67424000	USD
CY2015	us-gaap	Lease And Rental Expense LeaseAndRentalExpense	16193000	USD
CY2016	us-gaap	Lease And Rental Expense LeaseAndRentalExpense	21015000	USD
CY2017	us-gaap	Lease And Rental Expense LeaseAndRentalExpense	29148000	USD
CY2016Q4	us-gaap	Liabilities Liabilities	19273200000	USD
CY2017Q4	us-gaap	Liabilities Liabilities	27008441000	USD
CY2016Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	21844817000	USD
CY2017Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	31417635000	USD
CY2015	us-gaap	Life Insurance Corporate Or Bank Owned Change In Value LifeInsuranceCorporateOrBankOwnedChangeInValue	6397000	USD
CY2016	us-gaap	Life Insurance Corporate Or Bank Owned Change In Value LifeInsuranceCorporateOrBankOwnedChangeInValue	5373000	USD
CY2017	us-gaap	Life Insurance Corporate Or Bank Owned Change In Value LifeInsuranceCorporateOrBankOwnedChangeInValue	11200000	USD
CY2014Q4	us-gaap	Loans And Leases Receivable Allowance LoansAndLeasesReceivableAllowance	125926000	USD
CY2015Q4	us-gaap	Loans And Leases Receivable Allowance LoansAndLeasesReceivableAllowance	142012000	USD
CY2016Q4	us-gaap	Loans And Leases Receivable Allowance LoansAndLeasesReceivableAllowance	158059000	USD
CY2017Q4	us-gaap	Loans And Leases Receivable Allowance LoansAndLeasesReceivableAllowance	175380000	USD
CY2016Q4	us-gaap	Loans And Leases Receivable Deferred Income LoansAndLeasesReceivableDeferredIncome	52723000	USD
CY2017Q4	us-gaap	Loans And Leases Receivable Deferred Income LoansAndLeasesReceivableDeferredIncome	50680000	USD
CY2016Q4	us-gaap	Loans And Leases Receivable Net Of Deferred Income LoansAndLeasesReceivableNetOfDeferredIncome	14896943000	USD
CY2017Q4	us-gaap	Loans And Leases Receivable Net Of Deferred Income LoansAndLeasesReceivableNetOfDeferredIncome	20998766000	USD
CY2016Q4	us-gaap	Loans And Leases Receivable Net Reported Amount LoansAndLeasesReceivableNetReportedAmount	14738884000	USD
CY2017Q4	us-gaap	Loans And Leases Receivable Net Reported Amount LoansAndLeasesReceivableNetReportedAmount	20823386000	USD
CY2016Q4	us-gaap	Loans And Leases Receivable Related Parties LoansAndLeasesReceivableRelatedParties	21569000	USD
CY2017Q4	us-gaap	Loans And Leases Receivable Related Parties LoansAndLeasesReceivableRelatedParties	19811000	USD
CY2017	us-gaap	Loans And Leases Receivable Related Parties Additions LoansAndLeasesReceivableRelatedPartiesAdditions	1171000	USD
CY2017	us-gaap	Loans And Leases Receivable Related Parties Proceeds LoansAndLeasesReceivableRelatedPartiesProceeds	3447000	USD
CY2016Q4	us-gaap	Loans Held For Sale Fair Value Disclosure LoansHeldForSaleFairValueDisclosure	0	USD
CY2017Q4	us-gaap	Loans Held For Sale Fair Value Disclosure LoansHeldForSaleFairValueDisclosure	56458000	USD
CY2016Q4	us-gaap	Loans Receivable Held For Sale Net Not Part Of Disposal Group LoansReceivableHeldForSaleNetNotPartOfDisposalGroup	11908000	USD
CY2017Q4	us-gaap	Loans Receivable Held For Sale Net Not Part Of Disposal Group LoansReceivableHeldForSaleNetNotPartOfDisposalGroup	92891000	USD
CY2016Q4	us-gaap	Long Term Debt LongTermDebt	539494000	USD
CY2017Q4	us-gaap	Long Term Debt LongTermDebt	668173000	USD
CY2017Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal After Year Five LongTermDebtMaturitiesRepaymentsOfPrincipalAfterYearFive	283060000	USD
CY2017Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Next Twelve Months LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths	69684000	USD
CY2017Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Five LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFive	6072000	USD
CY2017Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Four LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour	52189000	USD
CY2017Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Three LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree	105610000	USD
CY2017Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Two LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo	151558000	USD
CY2015Q4	us-gaap	Longterm Debt Weighted Average Interest Rate LongtermDebtWeightedAverageInterestRate	0.0273
CY2016Q4	us-gaap	Longterm Debt Weighted Average Interest Rate LongtermDebtWeightedAverageInterestRate	0.0271
CY2017Q4	us-gaap	Longterm Debt Weighted Average Interest Rate LongtermDebtWeightedAverageInterestRate	0.0285
CY2016Q4	us-gaap	Machinery And Equipment Gross MachineryAndEquipmentGross	174325000	USD
CY2017Q4	us-gaap	Machinery And Equipment Gross MachineryAndEquipmentGross	212587000	USD
CY2015	us-gaap	Marketable Securities Realized Gain Loss MarketableSecuritiesRealizedGainLoss	822000	USD
CY2016	us-gaap	Marketable Securities Realized Gain Loss MarketableSecuritiesRealizedGainLoss	712000	USD
CY2017	us-gaap	Marketable Securities Realized Gain Loss MarketableSecuritiesRealizedGainLoss	5916000	USD
CY2015	us-gaap	Marketing And Advertising Expense MarketingAndAdvertisingExpense	8396000	USD
CY2016	us-gaap	Marketing And Advertising Expense MarketingAndAdvertisingExpense	10141000	USD
CY2017	us-gaap	Marketing And Advertising Expense MarketingAndAdvertisingExpense	11505000	USD
CY2015	us-gaap	Mortgage Loan Related To Property Sales1 MortgageLoanRelatedToPropertySales1	372000	USD
CY2016	us-gaap	Mortgage Loan Related To Property Sales1 MortgageLoanRelatedToPropertySales1	441000	USD
CY2017	us-gaap	Mortgage Loan Related To Property Sales1 MortgageLoanRelatedToPropertySales1	19000	USD
CY2017Q4	us-gaap	Municipal Debt Securities At Carrying Value MunicipalDebtSecuritiesAtCarryingValue	937800000	USD
CY2015	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	1120912000	USD
CY2016	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	849226000	USD
CY2017	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	1358540000	USD
CY2015	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-1142666000	USD
CY2016	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-1259646000	USD
CY2017	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-1529410000	USD
CY2015	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	223480000	USD
CY2016	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	292708000	USD
CY2017	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	278906000	USD
CY2015	us-gaap	Net Income Loss NetIncomeLoss	159649000	USD
CY2016Q1	us-gaap	Net Income Loss NetIncomeLoss	26132000	USD
CY2016Q2	us-gaap	Net Income Loss NetIncomeLoss	41300000	USD
CY2016Q3	us-gaap	Net Income Loss NetIncomeLoss	52168000	USD
CY2016Q4	us-gaap	Net Income Loss NetIncomeLoss	51291000	USD
CY2016	us-gaap	Net Income Loss NetIncomeLoss	170891000	USD
CY2017Q1	us-gaap	Net Income Loss NetIncomeLoss	22979000	USD
CY2017Q2	us-gaap	Net Income Loss NetIncomeLoss	74406000	USD
CY2017Q3	us-gaap	Net Income Loss NetIncomeLoss	77693000	USD
CY2017Q4	us-gaap	Net Income Loss NetIncomeLoss	24126000	USD
CY2017	us-gaap	Net Income Loss NetIncomeLoss	199204000	USD
CY2015	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	151608000	USD
CY2016Q1	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	24122000	USD
CY2016Q2	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	39290000	USD
CY2016Q3	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	50158000	USD
CY2016Q4	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	49280000	USD
CY2016	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	162850000	USD
CY2017Q1	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	20969000	USD
CY2017Q2	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	72396000	USD
CY2017Q3	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	75683000	USD
CY2017Q4	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	22115000	USD
CY2017	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	191163000	USD
CY2016Q4	us-gaap	Noninterest Bearing Deposit Liabilities NoninterestBearingDepositLiabilities	4205337000	USD
CY2017Q4	us-gaap	Noninterest Bearing Deposit Liabilities NoninterestBearingDepositLiabilities	5720030000	USD
CY2015	us-gaap	Noninterest Expense NoninterestExpense	390549000	USD
CY2016Q1	us-gaap	Noninterest Expense NoninterestExpense	136648000	USD
CY2016Q2	us-gaap	Noninterest Expense NoninterestExpense	129629000	USD
CY2016Q3	us-gaap	Noninterest Expense NoninterestExpense	121050000	USD
CY2016Q4	us-gaap	Noninterest Expense NoninterestExpense	123806000	USD
CY2016	us-gaap	Noninterest Expense NoninterestExpense	511133000	USD
CY2017Q1	us-gaap	Noninterest Expense NoninterestExpense	187555000	USD
CY2017Q2	us-gaap	Noninterest Expense NoninterestExpense	163714000	USD
CY2017Q3	us-gaap	Noninterest Expense NoninterestExpense	163743000	USD
CY2017Q4	us-gaap	Noninterest Expense NoninterestExpense	166529000	USD
CY2017	us-gaap	Noninterest Expense NoninterestExpense	681541000	USD
CY2015	us-gaap	Noninterest Income NoninterestIncome	162410000	USD
CY2016	us-gaap	Noninterest Income NoninterestIncome	201761000	USD
CY2017	us-gaap	Noninterest Income NoninterestIncome	252449000	USD
CY2015	us-gaap	Noninterest Income Other NoninterestIncomeOther	13865000	USD
CY2016Q1	us-gaap	Noninterest Income Other NoninterestIncomeOther	45973000	USD
CY2016Q2	us-gaap	Noninterest Income Other NoninterestIncomeOther	51185000	USD
CY2016Q3	us-gaap	Noninterest Income Other NoninterestIncomeOther	52941000	USD
CY2016Q4	us-gaap	Noninterest Income Other NoninterestIncomeOther	50950000	USD
CY2017	us-gaap	Noninterest Income Other NoninterestIncomeOther	16480000	USD
CY2017	us-gaap	Number Of Reportable Segments NumberOfReportableSegments	4	Segment
CY2017Q4	us-gaap	Number Of States In Which Entity Operates NumberOfStatesInWhichEntityOperates	8	State
CY2016	us-gaap	Noninterest Income Other NoninterestIncomeOther	12730000	USD
CY2017Q1	us-gaap	Noninterest Income Other NoninterestIncomeOther	52491000	USD
CY2017Q2	us-gaap	Noninterest Income Other NoninterestIncomeOther	65585000	USD
CY2017Q3	us-gaap	Noninterest Income Other NoninterestIncomeOther	63374000	USD
CY2017Q4	us-gaap	Noninterest Income Other NoninterestIncomeOther	65083000	USD
CY2015	us-gaap	Occupancy Net OccupancyNet	33670000	USD
CY2016	us-gaap	Occupancy Net OccupancyNet	40086000	USD
CY2017	us-gaap	Occupancy Net OccupancyNet	53787000	USD
CY2017Q4	us-gaap	Operating Leases Future Minimum Payments Due OperatingLeasesFutureMinimumPaymentsDue	145086000	USD
CY2017Q4	us-gaap	Operating Leases Future Minimum Payments Due Current OperatingLeasesFutureMinimumPaymentsDueCurrent	26949000	USD
CY2017Q4	us-gaap	Operating Leases Future Minimum Payments Due In Five Years OperatingLeasesFutureMinimumPaymentsDueInFiveYears	11855000	USD
CY2017Q4	us-gaap	Operating Leases Future Minimum Payments Due In Four Years OperatingLeasesFutureMinimumPaymentsDueInFourYears	15358000	USD
CY2017Q4	us-gaap	Operating Leases Future Minimum Payments Due In Three Years OperatingLeasesFutureMinimumPaymentsDueInThreeYears	18587000	USD
CY2017Q4	us-gaap	Operating Leases Future Minimum Payments Due In Two Years OperatingLeasesFutureMinimumPaymentsDueInTwoYears	22995000	USD
CY2017Q4	us-gaap	Operating Leases Future Minimum Payments Due Thereafter OperatingLeasesFutureMinimumPaymentsDueThereafter	49342000	USD
CY2016Q4	us-gaap	Other Assets OtherAssets	493246000	USD
CY2017Q4	us-gaap	Other Assets OtherAssets	810464000	USD
CY2015	us-gaap	Other Comprehensive Income Defined Benefit Plan Net Prior Service Cost Credit Arising During Period Before Tax OtherComprehensiveIncomeDefinedBenefitPlanNetPriorServiceCostCreditArisingDuringPeriodBeforeTax	-7000	USD
CY2016	us-gaap	Other Comprehensive Income Defined Benefit Plan Net Prior Service Cost Credit Arising During Period Before Tax OtherComprehensiveIncomeDefinedBenefitPlanNetPriorServiceCostCreditArisingDuringPeriodBeforeTax	-7000	USD
CY2017	us-gaap	Other Comprehensive Income Defined Benefit Plan Net Prior Service Cost Credit Arising During Period Before Tax OtherComprehensiveIncomeDefinedBenefitPlanNetPriorServiceCostCreditArisingDuringPeriodBeforeTax	-7000	USD
CY2015	us-gaap	Other Comprehensive Income Defined Benefit Plans Net Unamortized Gain Loss Arising During Period Net Of Tax OtherComprehensiveIncomeDefinedBenefitPlansNetUnamortizedGainLossArisingDuringPeriodNetOfTax	-3280000	USD
CY2016	us-gaap	Other Comprehensive Income Defined Benefit Plans Net Unamortized Gain Loss Arising During Period Net Of Tax OtherComprehensiveIncomeDefinedBenefitPlansNetUnamortizedGainLossArisingDuringPeriodNetOfTax	299000	USD
CY2017	us-gaap	Other Comprehensive Income Defined Benefit Plans Net Unamortized Gain Loss Arising During Period Net Of Tax OtherComprehensiveIncomeDefinedBenefitPlansNetUnamortizedGainLossArisingDuringPeriodNetOfTax	-7000	USD
CY2015	us-gaap	Other Comprehensive Income Defined Benefit Plans Net Unamortized Gain Loss Arising During Period Tax OtherComprehensiveIncomeDefinedBenefitPlansNetUnamortizedGainLossArisingDuringPeriodTax	-1766000	USD
CY2016	us-gaap	Other Comprehensive Income Defined Benefit Plans Net Unamortized Gain Loss Arising During Period Tax OtherComprehensiveIncomeDefinedBenefitPlansNetUnamortizedGainLossArisingDuringPeriodTax	161000	USD
CY2017	us-gaap	Other Comprehensive Income Defined Benefit Plans Net Unamortized Gain Loss Arising During Period Tax OtherComprehensiveIncomeDefinedBenefitPlansNetUnamortizedGainLossArisingDuringPeriodTax	-1000	USD
CY2015	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-5130000	USD
CY2016	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-10236000	USD
CY2017	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-6967000	USD
CY2015	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax	534000	USD
CY2016	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax	463000	USD
CY2017	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax	411000	USD
CY2015	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesTax	288000	USD
CY2016	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesTax	249000	USD
CY2017	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesTax	230000	USD
CY2015	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci On Derivatives Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivativesNetOfTax	1921000	USD
CY2016	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci On Derivatives Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivativesNetOfTax	1272000	USD
CY2017	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci On Derivatives Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivativesNetOfTax	46000	USD
CY2015	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci On Derivatives Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivativesTax	1035000	USD
CY2016	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci On Derivatives Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivativesTax	685000	USD
CY2017	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci On Derivatives Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivativesTax	26000	USD
CY2015	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Transition Asset Obligation Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetTransitionAssetObligationBeforeTax	0	USD
CY2016	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Transition Asset Obligation Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetTransitionAssetObligationBeforeTax	0	USD
CY2016Q4	us-gaap	Other Long Term Debt OtherLongTermDebt	98637000	USD
CY2017	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Transition Asset Obligation Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetTransitionAssetObligationBeforeTax	0	USD
CY2015	us-gaap	Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodNetOfTax	3504000	USD
CY2016	us-gaap	Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodNetOfTax	5086000	USD
CY2017	us-gaap	Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodNetOfTax	-759000	USD
CY2015	us-gaap	Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Tax OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodTax	1887000	USD
CY2016	us-gaap	Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Tax OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodTax	2739000	USD
CY2017	us-gaap	Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Tax OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodTax	-426000	USD
CY2017Q4	us-gaap	Other Long Term Debt OtherLongTermDebt	160151000	USD
CY2015	us-gaap	Other Noninterest Expense OtherNoninterestExpense	28548000	USD
CY2015	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax	-2899000	USD
CY2016	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax	-13886000	USD
CY2017	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax	-5744000	USD
CY2015	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax	1561000	USD
CY2016	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax	7477000	USD
CY2017	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax	3224000	USD
CY2015	us-gaap	Other Interest And Dividend Income OtherInterestAndDividendIncome	117000	USD
CY2016	us-gaap	Other Interest And Dividend Income OtherInterestAndDividendIncome	444000	USD
CY2017	us-gaap	Other Interest And Dividend Income OtherInterestAndDividendIncome	902000	USD
CY2016Q4	us-gaap	Other Liabilities OtherLiabilities	165049000	USD
CY2017Q4	us-gaap	Other Liabilities OtherLiabilities	262206000	USD
CY2016	us-gaap	Other Noninterest Expense OtherNoninterestExpense	39387000	USD
CY2017	us-gaap	Other Noninterest Expense OtherNoninterestExpense	43712000	USD
CY2016	us-gaap	Other Than Temporary Impairment Credit Losses Recognized In Earnings Additions Additional Credit Losses OtherThanTemporaryImpairmentCreditLossesRecognizedInEarningsAdditionsAdditionalCreditLosses	0	USD
CY2016	us-gaap	Other Than Temporary Impairment Credit Losses Recognized In Earnings Additions No Previous Impairment OtherThanTemporaryImpairmentCreditLossesRecognizedInEarningsAdditionsNoPreviousImpairment	0	USD
CY2015Q4	us-gaap	Other Than Temporary Impairment Credit Losses Recognized In Earnings Credit Losses On Debt Securities Held OtherThanTemporaryImpairmentCreditLossesRecognizedInEarningsCreditLossesOnDebtSecuritiesHeld	27000	USD
CY2016Q4	us-gaap	Other Than Temporary Impairment Credit Losses Recognized In Earnings Credit Losses On Debt Securities Held OtherThanTemporaryImpairmentCreditLossesRecognizedInEarningsCreditLossesOnDebtSecuritiesHeld	0	USD
CY2016	us-gaap	Other Than Temporary Impairment Credit Losses Recognized In Earnings Reductions Securities Sold OtherThanTemporaryImpairmentCreditLossesRecognizedInEarningsReductionsSecuritiesSold	27000	USD
CY2015	us-gaap	Other Than Temporary Impairment Losses Investments Availableforsale Securities OtherThanTemporaryImpairmentLossesInvestmentsAvailableforsaleSecurities	0	USD
CY2016	us-gaap	Other Than Temporary Impairment Losses Investments Availableforsale Securities OtherThanTemporaryImpairmentLossesInvestmentsAvailableforsaleSecurities	0	USD
CY2017	us-gaap	Other Than Temporary Impairment Losses Investments Availableforsale Securities OtherThanTemporaryImpairmentLossesInvestmentsAvailableforsaleSecurities	0	USD
CY2015	us-gaap	Payments For Proceeds From Loans And Leases PaymentsForProceedsFromLoansAndLeases	985999000	USD
CY2016	us-gaap	Payments For Proceeds From Loans And Leases PaymentsForProceedsFromLoansAndLeases	816093000	USD
CY2017	us-gaap	Payments For Proceeds From Loans And Leases PaymentsForProceedsFromLoansAndLeases	1100481000	USD
CY2015	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	84511000	USD
CY2016	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	101670000	USD
CY2017	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	142618000	USD
CY2015	us-gaap	Payments Of Dividends Preferred Stock And Preference Stock PaymentsOfDividendsPreferredStockAndPreferenceStock	8041000	USD
CY2016	us-gaap	Payments Of Dividends Preferred Stock And Preference Stock PaymentsOfDividendsPreferredStockAndPreferenceStock	8041000	USD
CY2017	us-gaap	Payments Of Dividends Preferred Stock And Preference Stock PaymentsOfDividendsPreferredStockAndPreferenceStock	8041000	USD
CY2015	us-gaap	Payments To Acquire Available For Sale Securities PaymentsToAcquireAvailableForSaleSecurities	421901000	USD
CY2016	us-gaap	Payments To Acquire Available For Sale Securities PaymentsToAcquireAvailableForSaleSecurities	1066361000	USD
CY2017	us-gaap	Payments To Acquire Available For Sale Securities PaymentsToAcquireAvailableForSaleSecurities	1141620000	USD
CY2015	us-gaap	Payments To Acquire Held To Maturity Securities PaymentsToAcquireHeldToMaturitySecurities	465597000	USD
CY2016	us-gaap	Payments To Acquire Held To Maturity Securities PaymentsToAcquireHeldToMaturitySecurities	1063273000	USD
CY2017	us-gaap	Payments To Acquire Held To Maturity Securities PaymentsToAcquireHeldToMaturitySecurities	1185859000	USD
CY2017	us-gaap	Payments To Acquire Life Insurance Policies PaymentsToAcquireLifeInsurancePolicies	50124000	USD
CY2015	us-gaap	Payments To Acquire Life Insurance Policies PaymentsToAcquireLifeInsurancePolicies	72688000	USD
CY2016	us-gaap	Payments To Acquire Life Insurance Policies PaymentsToAcquireLifeInsurancePolicies	16587000	USD
CY2017Q4	us-gaap	Preferred Stock Value PreferredStockValue	106882000	USD
CY2015	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	12731000	USD
CY2016	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	18472000	USD
CY2017	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	11181000	USD
CY2015	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	9723000	USD
CY2016	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	59327000	USD
CY2017	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	56874000	USD
CY2015	us-gaap	Payments To Purchase Loans Held For Sale PaymentsToPurchaseLoansHeldForSale	445558000	USD
CY2016	us-gaap	Payments To Purchase Loans Held For Sale PaymentsToPurchaseLoansHeldForSale	713087000	USD
CY2017	us-gaap	Payments To Purchase Loans Held For Sale PaymentsToPurchaseLoansHeldForSale	1097869000	USD
CY2015	us-gaap	Pension Expense PensionExpense	-1962000	USD
CY2016	us-gaap	Pension Expense PensionExpense	-909000	USD
CY2017	us-gaap	Pension Expense PensionExpense	-1652000	USD
CY2016Q4	us-gaap	Preferred Stock Liquidation Preference PreferredStockLiquidationPreference	1000
CY2017Q4	us-gaap	Preferred Stock Liquidation Preference PreferredStockLiquidationPreference	1000
CY2016Q4	us-gaap	Preferred Stock Par Or Stated Value Per Share PreferredStockParOrStatedValuePerShare	0.01
CY2017Q4	us-gaap	Preferred Stock Par Or Stated Value Per Share PreferredStockParOrStatedValuePerShare	0.01
CY2016Q4	us-gaap	Preferred Stock Shares Authorized PreferredStockSharesAuthorized	20000000	shares
CY2017Q4	us-gaap	Preferred Stock Shares Authorized PreferredStockSharesAuthorized	20000000	shares
CY2016Q4	us-gaap	Preferred Stock Shares Issued PreferredStockSharesIssued	110877	shares
CY2017Q4	us-gaap	Preferred Stock Shares Issued PreferredStockSharesIssued	110877	shares
CY2016Q4	us-gaap	Preferred Stock Value PreferredStockValue	106882000	USD
CY2015	us-gaap	Proceeds From Issuance Of Long Term Debt ProceedsFromIssuanceOfLongTermDebt	134953000	USD
CY2016	us-gaap	Proceeds From Issuance Of Long Term Debt ProceedsFromIssuanceOfLongTermDebt	46357000	USD
CY2017	us-gaap	Proceeds From Issuance Of Long Term Debt ProceedsFromIssuanceOfLongTermDebt	155399000	USD
CY2015	us-gaap	Proceeds From Life Insurance Policies ProceedsFromLifeInsurancePolicies	72664000	USD
CY2016	us-gaap	Proceeds From Life Insurance Policies ProceedsFromLifeInsurancePolicies	0	USD
CY2017	us-gaap	Proceeds From Life Insurance Policies ProceedsFromLifeInsurancePolicies	0	USD
CY2015	us-gaap	Proceeds From Maturities Prepayments And Calls Of Available For Sale Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities	284483000	USD
CY2016	us-gaap	Proceeds From Maturities Prepayments And Calls Of Available For Sale Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities	543923000	USD
CY2017	us-gaap	Proceeds From Maturities Prepayments And Calls Of Available For Sale Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities	569949000	USD
CY2015	us-gaap	Proceeds From Maturities Prepayments And Calls Of Held To Maturity Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfHeldToMaturitySecurities	277967000	USD
CY2016	us-gaap	Proceeds From Maturities Prepayments And Calls Of Held To Maturity Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfHeldToMaturitySecurities	357111000	USD
CY2017	us-gaap	Proceeds From Maturities Prepayments And Calls Of Held To Maturity Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfHeldToMaturitySecurities	394823000	USD
CY2015	us-gaap	Proceeds From Repayments Of Short Term Debt ProceedsFromRepaymentsOfShortTermDebt	7238000	USD
CY2016	us-gaap	Proceeds From Repayments Of Short Term Debt ProceedsFromRepaymentsOfShortTermDebt	251713000	USD
CY2017	us-gaap	Proceeds From Repayments Of Short Term Debt ProceedsFromRepaymentsOfShortTermDebt	379139000	USD
CY2015	us-gaap	Proceeds From Sale Of Available For Sale Securities ProceedsFromSaleOfAvailableForSaleSecurities	33499000	USD
CY2016	us-gaap	Proceeds From Sale Of Available For Sale Securities ProceedsFromSaleOfAvailableForSaleSecurities	615199000	USD
CY2017	us-gaap	Proceeds From Sale Of Available For Sale Securities ProceedsFromSaleOfAvailableForSaleSecurities	786762000	USD
CY2017	us-gaap	Proceeds From Sale Of Available For Sale Securities ProceedsFromSaleOfAvailableForSaleSecurities	786800000	USD
CY2015	us-gaap	Proceeds From Sale Of Held To Maturity Securities ProceedsFromSaleOfHeldToMaturitySecurities	0	USD
CY2016	us-gaap	Proceeds From Sale Of Held To Maturity Securities ProceedsFromSaleOfHeldToMaturitySecurities	0	USD
CY2017	us-gaap	Proceeds From Sale Of Held To Maturity Securities ProceedsFromSaleOfHeldToMaturitySecurities	57050000	USD
CY2015	us-gaap	Proceeds From Sale Of Loans And Leases Held For Investment ProceedsFromSaleOfLoansAndLeasesHeldForInvestment	455623000	USD
CY2016	us-gaap	Proceeds From Sale Of Loans And Leases Held For Investment ProceedsFromSaleOfLoansAndLeasesHeldForInvestment	716705000	USD
CY2017	us-gaap	Proceeds From Sale Of Loans And Leases Held For Investment ProceedsFromSaleOfLoansAndLeasesHeldForInvestment	1046762000	USD
CY2015	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	557000	USD
CY2016	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	7816000	USD
CY2017	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	2340000	USD
CY2015	us-gaap	Professional Fees ProfessionalFees	34698000	USD
CY2016	us-gaap	Professional Fees ProfessionalFees	43737000	USD
CY2017	us-gaap	Professional Fees ProfessionalFees	56113000	USD
CY2015	us-gaap	Profit Loss From Real Estate Operations ProfitLossFromRealEstateOperations	-4637000	USD
CY2016	us-gaap	Profit Loss From Real Estate Operations ProfitLossFromRealEstateOperations	-5153000	USD
CY2017	us-gaap	Profit Loss From Real Estate Operations ProfitLossFromRealEstateOperations	-4438000	USD
CY2016Q4	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	406749000	USD
CY2017Q4	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	519818000	USD
CY2016Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	243956000	USD
CY2017Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	336540000	USD
CY2015	us-gaap	Provision For Loan And Lease Losses ProvisionForLoanAndLeaseLosses	40441000	USD
CY2016Q1	us-gaap	Provision For Loan And Lease Losses ProvisionForLoanAndLeaseLosses	11768000	USD
CY2016Q2	us-gaap	Provision For Loan And Lease Losses ProvisionForLoanAndLeaseLosses	16640000	USD
CY2016Q3	us-gaap	Provision For Loan And Lease Losses ProvisionForLoanAndLeaseLosses	14639000	USD
CY2016Q4	us-gaap	Provision For Loan And Lease Losses ProvisionForLoanAndLeaseLosses	12705000	USD
CY2016	us-gaap	Provision For Loan And Lease Losses ProvisionForLoanAndLeaseLosses	55752000	USD
CY2017Q1	us-gaap	Provision For Loan And Lease Losses ProvisionForLoanAndLeaseLosses	10850000	USD
CY2017Q2	us-gaap	Provision For Loan And Lease Losses ProvisionForLoanAndLeaseLosses	16756000	USD
CY2017Q3	us-gaap	Provision For Loan And Lease Losses ProvisionForLoanAndLeaseLosses	16768000	USD
CY2017Q4	us-gaap	Provision For Loan And Lease Losses ProvisionForLoanAndLeaseLosses	16699000	USD
CY2017	us-gaap	Provision For Loan And Lease Losses ProvisionForLoanAndLeaseLosses	61073000	USD
CY2016Q4	us-gaap	Qualified Affordable Housing Project Investments Commitment QualifiedAffordableHousingProjectInvestmentsCommitment	9800000	USD
CY2017Q4	us-gaap	Qualified Affordable Housing Project Investments Commitment QualifiedAffordableHousingProjectInvestmentsCommitment	67200000	USD
CY2015	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	34968000	USD
CY2016	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	173477000	USD
CY2017	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	199318000	USD
CY2016Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	304397000	USD
CY2017Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	367658000	USD
CY2016Q4	us-gaap	Risk Weighted Assets RiskWeightedAssets	15979505000	USD
CY2017Q4	us-gaap	Risk Weighted Assets RiskWeightedAssets	23403622000	USD
CY2016Q4	us-gaap	Securities Held As Collateral At Fair Value SecuritiesHeldAsCollateralAtFairValue	322038000	USD
CY2017Q4	us-gaap	Securities Held As Collateral At Fair Value SecuritiesHeldAsCollateralAtFairValue	263756000	USD
CY2016Q4	us-gaap	Securities Sold Under Agreements To Repurchase SecuritiesSoldUnderAgreementsToRepurchase	313062000	USD
CY2017Q4	us-gaap	Securities Sold Under Agreements To Repurchase SecuritiesSoldUnderAgreementsToRepurchase	256017000	USD
CY2015	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Grants In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod	664337	shares
CY2016	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Grants In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod	574125	shares
CY2017	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Grants In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod	713998	shares
CY2017Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Nonvested Number ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber	1975862	shares
CY2017	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Outstanding Weighted Average Remaining Contractual Terms ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsOutstandingWeightedAverageRemainingContractualTerms	P1Y9M30D
CY2017Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Number Of Shares Authorized ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized	2642020	shares
CY2015	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercises In Period Total Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue	693000	USD
CY2016	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercises In Period Total Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue	6577000	USD
CY2017	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercises In Period Total Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue	1001000	USD
CY2015	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresInPeriod	39672	shares
CY2016	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresInPeriod	121769	shares
CY2017	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresInPeriod	122024	shares
CY2015	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Other Increases Decreases In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOtherIncreasesDecreasesInPeriod	0	shares
CY2016	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Other Increases Decreases In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOtherIncreasesDecreasesInPeriod	1707036	shares
CY2017	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Other Increases Decreases In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOtherIncreasesDecreasesInPeriod	207645	shares
CY2017Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue	27306000	USD
CY2014Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	568834	shares
CY2015Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	435340	shares
CY2016Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	892532	shares
CY2017Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	722650	shares
CY2014Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	8.86
CY2015Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	8.86
CY2016Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	8.95
CY2017Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	7.96
CY2015	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Exercises In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice	5.94
CY2016	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Exercises In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice	7.18
CY2017	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Exercises In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice	10.21
CY2015	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Forfeitures In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsForfeituresInPeriodWeightedAverageExercisePrice	15.66
CY2016	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Forfeitures In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsForfeituresInPeriodWeightedAverageExercisePrice	9.33
CY2017	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Forfeitures In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsForfeituresInPeriodWeightedAverageExercisePrice	12.12
CY2015	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Other Share Increase Decrease In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsOtherShareIncreaseDecreaseInPeriodWeightedAverageExercisePrice	0.00
CY2016	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Other Share Increase Decrease In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsOtherShareIncreaseDecreaseInPeriodWeightedAverageExercisePrice	7.83
CY2017	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Other Share Increase Decrease In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsOtherShareIncreaseDecreaseInPeriodWeightedAverageExercisePrice	8.92
CY2017Q4	us-gaap	Share Based Compensation Shares Authorized Under Stock Option Plans Exercise Price Range Number Of Outstanding Options ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeNumberOfOutstandingOptions	722650	shares
CY2017Q4	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Exercisable Intrinsic Value1 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1	4400000	USD
CY2016Q4	us-gaap	Short Term Borrowings ShortTermBorrowings	2503010000	USD
CY2017Q4	us-gaap	Short Term Borrowings ShortTermBorrowings	3678337000	USD
CY2015Q4	us-gaap	Short Term Debt Weighted Average Interest Rate ShortTermDebtWeightedAverageInterestRate	0.0048
CY2016Q4	us-gaap	Short Term Debt Weighted Average Interest Rate ShortTermDebtWeightedAverageInterestRate	0.0069
CY2017Q4	us-gaap	Short Term Debt Weighted Average Interest Rate ShortTermDebtWeightedAverageInterestRate	0.0144
CY2017Q4	us-gaap	Statutory Accounting Practices Statutory Amount Available For Dividend Payments Without Regulatory Approval StatutoryAccountingPracticesStatutoryAmountAvailableForDividendPaymentsWithoutRegulatoryApproval	206800000	USD
CY2015	us-gaap	Stock Issued During Period Shares Stock Options Exercised StockIssuedDuringPeriodSharesStockOptionsExercised	93822	shares
CY2016	us-gaap	Stock Issued During Period Shares Stock Options Exercised StockIssuedDuringPeriodSharesStockOptionsExercised	1128075	shares
CY2017	us-gaap	Stock Issued During Period Shares Stock Options Exercised StockIssuedDuringPeriodSharesStockOptionsExercised	255503	shares
CY2016	us-gaap	Stock Issued During Period Value Acquisitions StockIssuedDuringPeriodValueAcquisitions	404206000	USD
CY2017	us-gaap	Stock Issued During Period Value Acquisitions StockIssuedDuringPeriodValueAcquisitions	1783424000	USD
CY2015	us-gaap	Stock Issued During Period Value New Issues StockIssuedDuringPeriodValueNewIssues	8270000	USD
CY2016	us-gaap	Stock Issued During Period Value New Issues StockIssuedDuringPeriodValueNewIssues	11406000	USD
CY2017	us-gaap	Stock Issued During Period Value New Issues StockIssuedDuringPeriodValueNewIssues	2980000	USD
CY2014Q4	us-gaap	Stockholders Equity StockholdersEquity	2021456000	USD
CY2015Q4	us-gaap	Stockholders Equity StockholdersEquity	2096182000	USD
CY2017	us-gaap	Transfer Of Other Real Estate TransferOfOtherRealEstate	34841000	USD
CY2016Q4	us-gaap	Stockholders Equity StockholdersEquity	2571617000	USD
CY2017Q4	us-gaap	Stockholders Equity StockholdersEquity	4409194000	USD
CY2016Q4	us-gaap	Subordinated Long Term Debt SubordinatedLongTermDebt	87147000	USD
CY2017Q4	us-gaap	Subordinated Long Term Debt SubordinatedLongTermDebt	87614000	USD
CY2015	us-gaap	Supplies Expense SuppliesExpense	8064000	USD
CY2016	us-gaap	Supplies Expense SuppliesExpense	10834000	USD
CY2017	us-gaap	Supplies Expense SuppliesExpense	8326000	USD
CY2015	us-gaap	Taxes Excluding Income And Excise Taxes TaxesExcludingIncomeAndExciseTaxes	8139000	USD
CY2016	us-gaap	Taxes Excluding Income And Excise Taxes TaxesExcludingIncomeAndExciseTaxes	8940000	USD
CY2017	us-gaap	Taxes Excluding Income And Excise Taxes TaxesExcludingIncomeAndExciseTaxes	10256000	USD
CY2016Q4	us-gaap	Tier One Leverage Capital TierOneLeverageCapital	1582251000	USD
CY2017Q4	us-gaap	Tier One Leverage Capital TierOneLeverageCapital	2184571000	USD
CY2016Q4	us-gaap	Tier One Leverage Capital Required For Capital Adequacy TierOneLeverageCapitalRequiredForCapitalAdequacy	822265000	USD
CY2017Q4	us-gaap	Tier One Leverage Capital Required For Capital Adequacy TierOneLeverageCapitalRequiredForCapitalAdequacy	1152638000	USD
CY2016Q4	us-gaap	Tier One Leverage Capital Required For Capital Adequacy To Average Assets TierOneLeverageCapitalRequiredForCapitalAdequacyToAverageAssets	0.040
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 To Be Well Capitalized TierOneLeverageCapitalRequiredToBeWellCapitalized	1027831000	USD
CY2017Q4	us-gaap	Tier One Leverage Capital Required To Be Well Capitalized TierOneLeverageCapitalRequiredToBeWellCapitalized	1440797000	USD
CY2016Q4	us-gaap	Tier One Leverage Capital Required To Be Well Capitalized To Average Assets TierOneLeverageCapitalRequiredToBeWellCapitalizedToAverageAssets	0.050
CY2017Q4	us-gaap	Tier One Leverage Capital Required To Be Well Capitalized To Average Assets TierOneLeverageCapitalRequiredToBeWellCapitalizedToAverageAssets	0.050
CY2016Q4	us-gaap	Tier One Leverage Capital To Average Assets TierOneLeverageCapitalToAverageAssets	0.077
CY2017Q4	us-gaap	Tier One Leverage Capital To Average Assets TierOneLeverageCapitalToAverageAssets	0.076
CY2016Q4	us-gaap	Tier One Risk Based Capital TierOneRiskBasedCapital	1582251000	USD
CY2017Q4	us-gaap	Tier One Risk Based Capital TierOneRiskBasedCapital	2184571000	USD
CY2016Q4	us-gaap	Tier One Risk Based Capital Required For Capital Adequacy TierOneRiskBasedCapitalRequiredForCapitalAdequacy	1058642000	USD
CY2017Q4	us-gaap	Tier One Risk Based Capital Required For Capital Adequacy TierOneRiskBasedCapitalRequiredForCapitalAdequacy	1696763000	USD
CY2016Q4	us-gaap	Tier One Risk Based Capital Required For Capital Adequacy To Risk Weighted Assets TierOneRiskBasedCapitalRequiredForCapitalAdequacyToRiskWeightedAssets	0.066
CY2017Q4	us-gaap	Tier One Risk Based Capital Required For Capital Adequacy To Risk Weighted Assets TierOneRiskBasedCapitalRequiredForCapitalAdequacyToRiskWeightedAssets	0.073
CY2016Q4	us-gaap	Tier One Risk Based Capital Required To Be Well Capitalized TierOneRiskBasedCapitalRequiredToBeWellCapitalized	1278360000	USD
CY2017Q4	us-gaap	Tier One Risk Based Capital Required To Be Well Capitalized TierOneRiskBasedCapitalRequiredToBeWellCapitalized	1872290000	USD
CY2016Q4	us-gaap	Tier One Risk Based Capital Required To Be Well Capitalized To Risk Weighted Assets TierOneRiskBasedCapitalRequiredToBeWellCapitalizedToRiskWeightedAssets	0.080
CY2017Q4	us-gaap	Tier One Risk Based Capital Required To Be Well Capitalized To Risk Weighted Assets TierOneRiskBasedCapitalRequiredToBeWellCapitalizedToRiskWeightedAssets	0.080
CY2016Q4	us-gaap	Tier One Risk Based Capital To Risk Weighted Assets TierOneRiskBasedCapitalToRiskWeightedAssets	0.099
CY2017Q4	us-gaap	Tier One Risk Based Capital To Risk Weighted Assets TierOneRiskBasedCapitalToRiskWeightedAssets	0.093
CY2017Q4	us-gaap	Time Deposit Maturities After Year Five TimeDepositMaturitiesAfterYearFive	150790000	USD
CY2017Q4	us-gaap	Time Deposit Maturities Year Five TimeDepositMaturitiesYearFive	118891000	USD
CY2017Q4	us-gaap	Time Deposit Maturities Year Four TimeDepositMaturitiesYearFour	194678000	USD
CY2017Q4	us-gaap	Time Deposit Maturities Year One TimeDepositMaturitiesYearOne	2778467000	USD
CY2017Q4	us-gaap	Time Deposit Maturities Year Three TimeDepositMaturitiesYearThree	351431000	USD
CY2017Q4	us-gaap	Time Deposit Maturities Year Two TimeDepositMaturitiesYearTwo	1026222000	USD
CY2016Q4	us-gaap	Time Deposits TimeDeposits	2576495000	USD
CY2017Q4	us-gaap	Time Deposits TimeDeposits	4620479000	USD
CY2016Q4	us-gaap	Time Deposits Less Than100000 TimeDepositsLessThan100000	1680068000	USD
CY2017Q4	us-gaap	Time Deposits Less Than100000 TimeDepositsLessThan100000	2461014000	USD
CY2016Q4	us-gaap	Treasury Stock Shares TreasuryStockShares	1318947	shares
CY2017Q4	us-gaap	Treasury Stock Shares TreasuryStockShares	1629915	shares
CY2016Q4	us-gaap	Treasury Stock Value TreasuryStockValue	14784000	USD
CY2015	us-gaap	Transfer Of Other Real Estate TransferOfOtherRealEstate	9628000	USD
CY2016	us-gaap	Transfer Of Other Real Estate TransferOfOtherRealEstate	14592000	USD
CY2017Q4	us-gaap	Treasury Stock Value TreasuryStockValue	19114000	USD
CY2015Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	455000	USD
CY2016Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	542000	USD
CY2017Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	650000	USD
CY2016	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions	0	USD
CY2017	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions	5000	USD
CY2016	us-gaap	Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions	163000	USD
CY2017	us-gaap	Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions	186000	USD
CY2016	us-gaap	Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions	0	USD
CY2017	us-gaap	Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions	0	USD
CY2016Q4	us-gaap	Unrecognized Tax Benefits Interest On Income Taxes Accrued UnrecognizedTaxBenefitsInterestOnIncomeTaxesAccrued	19000	USD
CY2017Q4	us-gaap	Unrecognized Tax Benefits Interest On Income Taxes Accrued UnrecognizedTaxBenefitsInterestOnIncomeTaxesAccrued	25000	USD
CY2016	us-gaap	Unrecognized Tax Benefits Reductions Resulting From Lapse Of Applicable Statute Of Limitations UnrecognizedTaxBenefitsReductionsResultingFromLapseOfApplicableStatuteOfLimitations	76000	USD
CY2017	us-gaap	Unrecognized Tax Benefits Reductions Resulting From Lapse Of Applicable Statute Of Limitations UnrecognizedTaxBenefitsReductionsResultingFromLapseOfApplicableStatuteOfLimitations	73000	USD
CY2017Q4	us-gaap	Unrecognized Tax Benefits That Would Impact Effective Tax Rate UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate	500000	USD
CY2015	us-gaap	Weighted Average Number Diluted Shares Outstanding Adjustment WeightedAverageNumberDilutedSharesOutstandingAdjustment	1367168	shares
CY2016	us-gaap	Weighted Average Number Diluted Shares Outstanding Adjustment WeightedAverageNumberDilutedSharesOutstandingAdjustment	1524111	shares
CY2017	us-gaap	Weighted Average Number Diluted Shares Outstanding Adjustment WeightedAverageNumberDilutedSharesOutstandingAdjustment	1662681	shares
CY2015	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	176338953	shares
CY2016	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	207768609	shares
CY2017	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	303857976	shares
CY2015	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	174971785	shares
CY2016	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	206244498	shares
CY2017	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	302195295	shares
CY2017	us-gaap	Nature Of Operations NatureOfOperations	<div style="font-family:Times New Roman;font-size:10pt;"><div style="line-height:120%;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;font-weight:bold;">NATURE OF OPERATIONS</font></div><div style="line-height:120%;padding-top:16px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">F.N.B. Corporation (FNB), headquartered in Pittsburgh, Pennsylvania, is a diversified financial services company operating in </font><font style="font-family:inherit;font-size:10pt;">eight</font><font style="font-family:inherit;font-size:10pt;"> states. We hold a significant retail deposit market share in metropolitan markets including: Pittsburgh, Pennsylvania; Baltimore, Maryland; Cleveland, Ohio; and Charlotte, Raleigh, Durham and the Piedmont Triad (Winston-Salem, Greensboro and High Point) in North Carolina. As of </font><font style="font-family:inherit;font-size:10pt;">December 31, 2017</font><font style="font-family:inherit;font-size:10pt;">, we had </font><font style="font-family:inherit;font-size:10pt;">417</font><font style="font-family:inherit;font-size:10pt;"> banking offices throughout Pennsylvania, Ohio, Maryland, West Virginia, North Carolina and South Carolina. We provide a full range of commercial banking, consumer banking, and wealth management solutions through our subsidiary network which is led by our largest affiliate, First National Bank of Pennsylvania (FNBPA). Commercial banking solutions include corporate banking, small business banking, investment real estate financing, business credit, capital markets and lease financing. Consumer banking provides a full line of consumer banking products and services including deposit products, mortgage lending, consumer lending and a complete suite of mobile and online banking services. Wealth management services include fiduciary and brokerage services, asset management, private banking and insurance. We also operate Regency Finance Company (Regency), which had </font><font style="font-family:inherit;font-size:10pt;">77</font><font style="font-family:inherit;font-size:10pt;"> consumer finance offices in Pennsylvania, Ohio, Kentucky and Tennessee as of </font><font style="font-family:inherit;font-size:10pt;">December 31, 2017</font><font style="font-family:inherit;font-size:10pt;">.</font></div><div style="line-height:120%;padding-top:16px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">The terms “FNB,” “the Corporation,” “we,” “us” and “our” throughout this Report mean F.N.B. Corporation and its subsidiaries, when appropriate.</font></div></div>
CY2017	us-gaap	Use Of Estimates UseOfEstimates	<div style="font-family:Times New Roman;font-size:10pt;"><div style="line-height:120%;padding-top:16px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;font-style:italic;">Use of Estimates</font></div><div style="line-height:120%;padding-top:16px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">Our accounting and reporting policies conform with GAAP. The preparation of financial statements in conformity with GAAP requires us to make estimates and assumptions that affect the amounts reported in the consolidated financial statements and accompanying notes. Actual results could materially differ from those estimates. Material estimates that are particularly susceptible to significant changes include the allowance for credit losses, accounting for acquired loans, fair value of financial instruments, goodwill and other intangible assets, litigation and income taxes and deferred tax assets.</font></div></div>

Files In Submission

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$FNB
FNB CORP/PA/ Stock $fnb

2016 Q4 Form 10-K Financial Statement

#000003780818000005 Filed on February 28, 2018

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$FNB FNB CORP/PA/ Stock $fnb

2016 Q4 Form 10-K Financial Statement

#000003780818000005 Filed on February 28, 2018

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$FNB
FNB CORP/PA/ Stock $fnb