$FCF
FIRST COMMONWEALTH FINANCIAL CORP /PA/ Stock $fcf

$fcf Overview Financials Valuation SEC Filings Company Website

2021 Q4 Form 10-Q Financial Statement

#000071253721000029 Filed on November 08, 2021

Income Statement

Concept	2021 Q4	2021 Q3	2021 Q2
Revenue		$74.20M	$72.05M
YoY Change		0.82%	-3.91%
Cost Of Revenue
YoY Change
Gross Profit
YoY Change
Gross Profit Margin
Selling, General & Admin
YoY Change
% of Gross Profit
Research & Development
YoY Change
% of Gross Profit
Depreciation & Amortization	$2.600M	$2.900M	$2.900M
YoY Change	-13.33%	-9.37%	11.54%
% of Gross Profit
Operating Expenses
YoY Change
Operating Profit
YoY Change
Interest Expense		$3.551M	$3.852M
YoY Change		-50.84%	-53.56%
% of Operating Profit
Other Income/Expense, Net
YoY Change
Pretax Income	$43.63M	$42.53M	$37.33M
YoY Change	36.86%	79.62%	29.25%
Income Tax	$8.850M	$8.441M	$7.711M
% Of Pretax Income	20.28%	19.85%	20.66%
Net Earnings	$34.78M	$34.09M	$29.62M
YoY Change	35.44%	77.69%	24.18%
Net Earnings / Revenue		45.95%	41.11%
Basic Earnings Per Share		$0.36	$0.31
Diluted Earnings Per Share	$366.2K	$0.36	$0.31
COMMON SHARES
Basic Shares Outstanding	94.93M shares	95.62M shares	96.01M shares
Diluted Shares Outstanding		95.89M shares	96.28M shares

Balance Sheet

Concept	2021 Q4	2021 Q3	2021 Q2
SHORT-TERM ASSETS
Cash & Short-Term Investments
YoY Change
Cash & Equivalents	$395.4M	$334.7M	$284.5M
Short-Term Investments
Other Short-Term Assets
YoY Change
Inventory
Prepaid Expenses
Receivables
Other Receivables
Total Short-Term Assets
YoY Change
LONG-TERM ASSETS
Property, Plant & Equipment	$120.8M	$117.9M	$118.4M
YoY Change	-3.78%	-7.94%	-12.15%
Goodwill	$303.3M	$303.3M	$303.3M
YoY Change	0.0%	0.0%	0.0%
Intangibles	$11.19M	$11.76M	$12.17M
YoY Change	-17.08%	-16.54%	-17.46%
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	$9.545B	$9.478B	$9.402B
YoY Change	5.26%	2.03%	0.4%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable
YoY Change
Accrued Expenses	$44.80M	$44.50M	$43.90M
YoY Change	-4.27%	-6.9%	-14.26%
Deferred Revenue
YoY Change
Short-Term Debt	$138.3M	$117.8M	$107.4M
YoY Change	17.84%	-3.76%	-1.03%
Long-Term Debt Due	$5.900M	$6.000M	$6.200M
YoY Change	-7.81%	-7.69%	-6.06%
Total Short-Term Liabilities	$50.70M	$50.50M	$50.10M
YoY Change	-4.7%	-7.0%	-13.32%
LONG-TERM LIABILITIES
Long-Term Debt	$170.8M	$170.7M	$170.7M
YoY Change	0.12%	0.06%	0.12%
Other Long-Term Liabilities	$87.80M	$83.80M	$77.00M
YoY Change	-46.27%	-23.12%	-32.04%
Total Long-Term Liabilities	$258.6M	$254.5M	$247.7M
YoY Change	-22.57%	-8.98%	-12.72%
TOTAL LIABILITIES
Total Short-Term Liabilities	$50.70M	$50.50M	$50.10M
Total Long-Term Liabilities	$258.6M	$254.5M	$247.7M
Total Liabilities	$8.436B	$8.365B	$8.296B
YoY Change	5.45%	1.81%	0.08%
SHAREHOLDERS EQUITY
Retained Earnings	$691.3M	$667.4M	$644.4M
YoY Change	15.86%	12.61%	10.28%
Common Stock	$113.9M	$113.9M	$113.9M
YoY Change	0.0%	0.0%	0.0%
Preferred Stock
YoY Change
Treasury Stock (at cost)	$183.2M	$167.9M	$154.9M
YoY Change	19.07%	13.79%	11.64%
Treasury Stock Shares	19.68M shares	18.71M shares	17.71M shares
Shareholders Equity	$1.109B	$1.113B	$1.106B
YoY Change
Total Liabilities & Shareholders Equity	$9.545B	$9.478B	$9.402B
YoY Change	5.26%	2.03%	0.4%

Cashflow Statement

Concept	2021 Q4	2021 Q3	2021 Q2
OPERATING ACTIVITIES
Net Income	$34.78M	$34.09M	$29.62M
YoY Change	35.44%	77.69%	24.18%
Depreciation, Depletion And Amortization	$2.600M	$2.900M	$2.900M
YoY Change	-13.33%	-9.37%	11.54%
Cash From Operating Activities	$45.60M	$46.10M	$22.10M
YoY Change	30.66%	135.2%	22.1%
INVESTING ACTIVITIES
Capital Expenditures	-$4.500M	-$2.200M	-$1.600M
YoY Change	350.0%	83.33%	-5.88%
Acquisitions
YoY Change
Other Investing Activities	-$19.70M	-$31.70M	-$190.9M
YoY Change	-108.56%	175.65%	-62.03%
Cash From Investing Activities	-$24.30M	-$33.80M	-$192.5M
YoY Change	-110.6%	166.14%	-61.84%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net
YoY Change
Debt Paid & Issued, Net
YoY Change
Cash From Financing Activities	39.40M	37.90M	-49.70M
YoY Change	-113.7%	-144.8%	-106.14%
NET CHANGE
Cash From Operating Activities	45.60M	46.10M	22.10M
Cash From Investing Activities	-24.30M	-33.80M	-192.5M
Cash From Financing Activities	39.40M	37.90M	-49.70M
Net Change In Cash	60.70M	50.20M	-220.1M
YoY Change	-359.4%	-164.61%	-168.02%
FREE CASH FLOW
Cash From Operating Activities	$45.60M	$46.10M	$22.10M
Capital Expenditures	-$4.500M	-$2.200M	-$1.600M
Free Cash Flow	$50.10M	$48.30M	$23.70M
YoY Change	39.55%	132.21%	19.7%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
	dei	Document Type DocumentType	10-Q
	dei	Amendment Flag AmendmentFlag	false
	dei	Document Period End Date DocumentPeriodEndDate	2021-09-30
	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2021
	dei	Document Fiscal Period Focus DocumentFiscalPeriodFocus	Q3
	dei	Entity Registrant Name EntityRegistrantName	FIRST COMMONWEALTH FINANCIAL CORP /PA/
	dei	Entity Central Index Key EntityCentralIndexKey	0000712537
	dei	Document Period End Date DocumentPeriodEndDate	2021-09-30
	dei	Entity Address Postal Zip Code EntityAddressPostalZipCode	15701
	dei	Current Fiscal Year End Date CurrentFiscalYearEndDate	--12-31
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	dei	Entity Shell Company EntityShellCompany	false
	dei	Entity Small Business EntitySmallBusiness	false
	dei	Entity Emerging Growth Company EntityEmergingGrowthCompany	false
	dei	Entity Current Reporting Status EntityCurrentReportingStatus	Yes
	dei	Document Transition Report DocumentTransitionReport	false
	dei	Document Quarterly Report DocumentQuarterlyReport	true
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CY2020Q4	us-gaap	Fair Value Concentration Of Risk Commitments FairValueConcentrationOfRiskCommitments	100000	USD
	dei	Document Type DocumentType	10-Q
	dei	Document Quarterly Report DocumentQuarterlyReport	true
	dei	Document Transition Report DocumentTransitionReport	false
	dei	Entity File Number EntityFileNumber	001-11138
	dei	Entity Incorporation State Country Code EntityIncorporationStateCountryCode	PA
	dei	Entity Tax Identification Number EntityTaxIdentificationNumber	25-1428528
	dei	Entity Address Address Line1 EntityAddressAddressLine1	601 Philadelphia Street
	dei	Entity Address City Or Town EntityAddressCityOrTown	Indiana
	dei	Entity Address State Or Province EntityAddressStateOrProvince	PA
	dei	Entity Address Postal Zip Code EntityAddressPostalZipCode	15701
	dei	City Area Code CityAreaCode	724
	dei	Local Phone Number LocalPhoneNumber	349-7220
	dei	Entity Current Reporting Status EntityCurrentReportingStatus	Yes
	dei	Entity Interactive Data Current EntityInteractiveDataCurrent	Yes
	dei	Entity Filer Category EntityFilerCategory	Large Accelerated Filer
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	dei	Entity Small Business EntitySmallBusiness	false
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CY2020Q3	us-gaap	Debt And Equity Securities Gain Loss DebtAndEquitySecuritiesGainLoss	20000	USD
	us-gaap	Debt And Equity Securities Gain Loss DebtAndEquitySecuritiesGainLoss	16000	USD
	us-gaap	Debt And Equity Securities Gain Loss DebtAndEquitySecuritiesGainLoss	47000	USD
CY2021Q3	fcf	Feesand Commissionson Trustand Fiduciary Accounts FeesandCommissionsonTrustandFiduciaryAccounts	3118000	USD
CY2020Q3	fcf	Feesand Commissionson Trustand Fiduciary Accounts FeesandCommissionsonTrustandFiduciaryAccounts	2554000	USD
	fcf	Feesand Commissionson Trustand Fiduciary Accounts FeesandCommissionsonTrustandFiduciaryAccounts	8340000	USD
	fcf	Feesand Commissionson Trustand Fiduciary Accounts FeesandCommissionsonTrustandFiduciaryAccounts	6774000	USD
CY2021Q3	fcf	Feesand Commissionson Depositor Accounts FeesandCommissionsonDepositorAccounts	4770000	USD
CY2020Q3	fcf	Feesand Commissionson Depositor Accounts FeesandCommissionsonDepositorAccounts	4035000	USD
	fcf	Feesand Commissionson Depositor Accounts FeesandCommissionsonDepositorAccounts	13127000	USD
	fcf	Feesand Commissionson Depositor Accounts FeesandCommissionsonDepositorAccounts	12066000	USD
CY2021Q3	us-gaap	Insurance Commissions And Fees InsuranceCommissionsAndFees	2218000	USD
CY2020Q3	us-gaap	Insurance Commissions And Fees InsuranceCommissionsAndFees	2156000	USD
	us-gaap	Insurance Commissions And Fees InsuranceCommissionsAndFees	6368000	USD
	us-gaap	Insurance Commissions And Fees InsuranceCommissionsAndFees	5982000	USD
CY2021Q3	us-gaap	Bank Owned Life Insurance Income BankOwnedLifeInsuranceIncome	1486000	USD
CY2020Q3	us-gaap	Bank Owned Life Insurance Income BankOwnedLifeInsuranceIncome	1547000	USD
	us-gaap	Bank Owned Life Insurance Income BankOwnedLifeInsuranceIncome	4946000	USD
	us-gaap	Bank Owned Life Insurance Income BankOwnedLifeInsuranceIncome	4963000	USD
CY2021Q3	us-gaap	Gain Loss On Sales Of Loans Net GainLossOnSalesOfLoansNet	3485000	USD
CY2020Q3	us-gaap	Gain Loss On Sales Of Loans Net GainLossOnSalesOfLoansNet	6437000	USD
	us-gaap	Gain Loss On Sales Of Loans Net GainLossOnSalesOfLoansNet	11615000	USD
	us-gaap	Gain Loss On Sales Of Loans Net GainLossOnSalesOfLoansNet	13226000	USD
CY2021Q3	us-gaap	Gain Loss On Disposition Of Assets GainLossOnDispositionOfAssets	2480000	USD
CY2020Q3	us-gaap	Gain Loss On Disposition Of Assets GainLossOnDispositionOfAssets	1871000	USD
	us-gaap	Gain Loss On Disposition Of Assets GainLossOnDispositionOfAssets	6281000	USD
	us-gaap	Gain Loss On Disposition Of Assets GainLossOnDispositionOfAssets	3151000	USD
CY2021Q3	fcf	Feesand Commissionson Debit Cards FeesandCommissionsonDebitCards	7052000	USD
CY2020Q3	fcf	Feesand Commissionson Debit Cards FeesandCommissionsonDebitCards	6441000	USD
	fcf	Feesand Commissionson Debit Cards FeesandCommissionsonDebitCards	20885000	USD
	fcf	Feesand Commissionson Debit Cards FeesandCommissionsonDebitCards	17589000	USD
CY2021Q3	us-gaap	Derivative Gain Loss On Derivative Net DerivativeGainLossOnDerivativeNet	218000	USD
CY2020Q3	us-gaap	Derivative Gain Loss On Derivative Net DerivativeGainLossOnDerivativeNet	-160000	USD
	us-gaap	Derivative Gain Loss On Derivative Net DerivativeGainLossOnDerivativeNet	1371000	USD
	us-gaap	Derivative Gain Loss On Derivative Net DerivativeGainLossOnDerivativeNet	-2122000	USD
CY2021Q3	fcf	Derivative Fee Income DerivativeFeeIncome	317000	USD
CY2020Q3	fcf	Derivative Fee Income DerivativeFeeIncome	41000	USD
	fcf	Derivative Fee Income DerivativeFeeIncome	1715000	USD
	fcf	Derivative Fee Income DerivativeFeeIncome	864000	USD
CY2021Q3	us-gaap	Noninterest Income Other Operating Income NoninterestIncomeOtherOperatingIncome	2101000	USD
CY2020Q3	us-gaap	Noninterest Income Other Operating Income NoninterestIncomeOtherOperatingIncome	1827000	USD
	us-gaap	Noninterest Income Other Operating Income NoninterestIncomeOtherOperatingIncome	6022000	USD
	us-gaap	Noninterest Income Other Operating Income NoninterestIncomeOtherOperatingIncome	5314000	USD
CY2021Q3	us-gaap	Noninterest Income NoninterestIncome	27245000	USD
CY2020Q3	us-gaap	Noninterest Income NoninterestIncome	26769000	USD
	us-gaap	Noninterest Income NoninterestIncome	80686000	USD
	us-gaap	Noninterest Income NoninterestIncome	67854000	USD
CY2021Q3	us-gaap	Labor And Related Expense LaborAndRelatedExpense	31066000	USD
CY2020Q3	us-gaap	Labor And Related Expense LaborAndRelatedExpense	28823000	USD
	us-gaap	Labor And Related Expense LaborAndRelatedExpense	88084000	USD
	us-gaap	Labor And Related Expense LaborAndRelatedExpense	87573000	USD
CY2021Q3	us-gaap	Occupancy Net OccupancyNet	3960000	USD
CY2020Q3	us-gaap	Occupancy Net OccupancyNet	4609000	USD
	us-gaap	Occupancy Net OccupancyNet	12614000	USD
	us-gaap	Occupancy Net OccupancyNet	13979000	USD
CY2021Q3	us-gaap	Equipment Expense EquipmentExpense	4052000	USD
CY2020Q3	us-gaap	Equipment Expense EquipmentExpense	4033000	USD
	us-gaap	Equipment Expense EquipmentExpense	11866000	USD
	us-gaap	Equipment Expense EquipmentExpense	11468000	USD
CY2021Q3	us-gaap	Information Technology And Data Processing InformationTechnologyAndDataProcessing	3196000	USD
CY2020Q3	us-gaap	Information Technology And Data Processing InformationTechnologyAndDataProcessing	2741000	USD
	us-gaap	Information Technology And Data Processing InformationTechnologyAndDataProcessing	9440000	USD
	us-gaap	Information Technology And Data Processing InformationTechnologyAndDataProcessing	7804000	USD
CY2021Q3	us-gaap	Marketing And Advertising Expense MarketingAndAdvertisingExpense	1150000	USD
CY2020Q3	us-gaap	Marketing And Advertising Expense MarketingAndAdvertisingExpense	1115000	USD
	us-gaap	Marketing And Advertising Expense MarketingAndAdvertisingExpense	3829000	USD
	us-gaap	Marketing And Advertising Expense MarketingAndAdvertisingExpense	3800000	USD
CY2021Q3	us-gaap	Taxes Excluding Income And Excise Taxes TaxesExcludingIncomeAndExciseTaxes	1257000	USD
CY2020Q3	us-gaap	Taxes Excluding Income And Excise Taxes TaxesExcludingIncomeAndExciseTaxes	1254000	USD
	us-gaap	Taxes Excluding Income And Excise Taxes TaxesExcludingIncomeAndExciseTaxes	3347000	USD
	us-gaap	Taxes Excluding Income And Excise Taxes TaxesExcludingIncomeAndExciseTaxes	3246000	USD
CY2021Q3	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	868000	USD
CY2020Q3	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	939000	USD
	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	2597000	USD
	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	2792000	USD
CY2021Q3	us-gaap	Professional Fees ProfessionalFees	1308000	USD
CY2020Q3	us-gaap	Professional Fees ProfessionalFees	937000	USD
	us-gaap	Professional Fees ProfessionalFees	3150000	USD
	us-gaap	Professional Fees ProfessionalFees	2755000	USD
CY2021Q3	us-gaap	Federal Deposit Insurance Corporation Premium Expense FederalDepositInsuranceCorporationPremiumExpense	830000	USD
CY2020Q3	us-gaap	Federal Deposit Insurance Corporation Premium Expense FederalDepositInsuranceCorporationPremiumExpense	876000	USD
	us-gaap	Federal Deposit Insurance Corporation Premium Expense FederalDepositInsuranceCorporationPremiumExpense	1964000	USD
	us-gaap	Federal Deposit Insurance Corporation Premium Expense FederalDepositInsuranceCorporationPremiumExpense	1637000	USD
CY2021Q3	us-gaap	Gain Loss On Sales Of Assets And Asset Impairment Charges GainLossOnSalesOfAssetsAndAssetImpairmentCharges	-171000	USD
CY2020Q3	us-gaap	Gain Loss On Sales Of Assets And Asset Impairment Charges GainLossOnSalesOfAssetsAndAssetImpairmentCharges	-63000	USD
	us-gaap	Gain Loss On Sales Of Assets And Asset Impairment Charges GainLossOnSalesOfAssetsAndAssetImpairmentCharges	-223000	USD
	us-gaap	Gain Loss On Sales Of Assets And Asset Impairment Charges GainLossOnSalesOfAssetsAndAssetImpairmentCharges	-416000	USD
CY2021Q3	fcf	Operational Loss OperationalLoss	589000	USD
CY2020Q3	fcf	Operational Loss OperationalLoss	329000	USD
	fcf	Operational Loss OperationalLoss	1624000	USD
	fcf	Operational Loss OperationalLoss	1038000	USD
CY2021Q3	fcf	Covid19 Related Expenses COVID19RelatedExpenses	50000	USD
CY2020Q3	fcf	Covid19 Related Expenses COVID19RelatedExpenses	125000	USD
	fcf	Covid19 Related Expenses COVID19RelatedExpenses	357000	USD
	fcf	Covid19 Related Expenses COVID19RelatedExpenses	567000	USD
CY2021Q3	fcf	Voluntary Retirement Plan Expenses VoluntaryRetirementPlanExpenses	0	USD
CY2020Q3	fcf	Voluntary Retirement Plan Expenses VoluntaryRetirementPlanExpenses	3304000	USD
	fcf	Voluntary Retirement Plan Expenses VoluntaryRetirementPlanExpenses	0	USD
	fcf	Voluntary Retirement Plan Expenses VoluntaryRetirementPlanExpenses	3304000	USD
CY2021Q3	fcf	Branch Consolidation Expenses BranchConsolidationExpenses	0	USD
CY2020Q3	fcf	Branch Consolidation Expenses BranchConsolidationExpenses	2544000	USD
	fcf	Branch Consolidation Expenses BranchConsolidationExpenses	18000	USD
	fcf	Branch Consolidation Expenses BranchConsolidationExpenses	2544000	USD
CY2021Q3	us-gaap	Other Noninterest Expense OtherNoninterestExpense	6530000	USD
CY2020Q3	us-gaap	Other Noninterest Expense OtherNoninterestExpense	6555000	USD
	us-gaap	Other Noninterest Expense OtherNoninterestExpense	19316000	USD
	us-gaap	Other Noninterest Expense OtherNoninterestExpense	18351000	USD
CY2021Q3	us-gaap	Noninterest Expense NoninterestExpense	55027000	USD
CY2020Q3	us-gaap	Noninterest Expense NoninterestExpense	58247000	USD
	us-gaap	Noninterest Expense NoninterestExpense	158429000	USD
	us-gaap	Noninterest Expense NoninterestExpense	161274000	USD
CY2021Q3	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	42533000	USD
CY2020Q3	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	23679000	USD
	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	129191000	USD
	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	58321000	USD
CY2021Q3	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	8441000	USD
CY2020Q3	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	4493000	USD
	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	25710000	USD
	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	10557000	USD
CY2021Q3	us-gaap	Net Income Loss NetIncomeLoss	34092000	USD
CY2020Q3	us-gaap	Net Income Loss NetIncomeLoss	19186000	USD
	us-gaap	Net Income Loss NetIncomeLoss	103481000	USD
	us-gaap	Net Income Loss NetIncomeLoss	47764000	USD
CY2021Q3	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	95616421	shares
CY2020Q3	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	97917096	shares
	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	95883868	shares
	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	97990749	shares
CY2021Q3	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	95892304	shares
CY2020Q3	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	98160143	shares
	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	96130602	shares
	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	98224506	shares
CY2021Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.36
CY2020Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.20
	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.08
	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.49
CY2021Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.36
CY2020Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.20
	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.08
	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.49
CY2021Q3	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.115
CY2020Q3	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.110
	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.340
	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.330
CY2021Q3	us-gaap	Net Income Loss NetIncomeLoss	34092000	USD
CY2020Q3	us-gaap	Net Income Loss NetIncomeLoss	19186000	USD
	us-gaap	Net Income Loss NetIncomeLoss	103481000	USD
	us-gaap	Net Income Loss NetIncomeLoss	47764000	USD
CY2021Q3	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Before Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodBeforeTax	-4025000	USD
CY2020Q3	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Before Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodBeforeTax	-3256000	USD
	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Before Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodBeforeTax	-18122000	USD
	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Before Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodBeforeTax	22069000	USD
CY2021Q3	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesBeforeTax	0	USD
CY2020Q3	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesBeforeTax	20000	USD
	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesBeforeTax	16000	USD
	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesBeforeTax	47000	USD
CY2021Q3	us-gaap	Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Before Tax OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodBeforeTax	-529000	USD
CY2020Q3	us-gaap	Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Before Tax OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodBeforeTax	225000	USD
	us-gaap	Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Before Tax OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodBeforeTax	776000	USD
	us-gaap	Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Before Tax OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodBeforeTax	-4892000	USD
CY2021Q3	us-gaap	Other Comprehensive Income Loss Before Tax Portion Attributable To Parent OtherComprehensiveIncomeLossBeforeTaxPortionAttributableToParent	-4554000	USD
CY2020Q3	us-gaap	Other Comprehensive Income Loss Before Tax Portion Attributable To Parent OtherComprehensiveIncomeLossBeforeTaxPortionAttributableToParent	-3051000	USD
	us-gaap	Other Comprehensive Income Loss Before Tax Portion Attributable To Parent OtherComprehensiveIncomeLossBeforeTaxPortionAttributableToParent	-17362000	USD
	us-gaap	Other Comprehensive Income Loss Before Tax Portion Attributable To Parent OtherComprehensiveIncomeLossBeforeTaxPortionAttributableToParent	17130000	USD
CY2021Q3	us-gaap	Other Comprehensive Income Loss Tax Portion Attributable To Parent1 OtherComprehensiveIncomeLossTaxPortionAttributableToParent1	-955000	USD
CY2020Q3	us-gaap	Other Comprehensive Income Loss Tax Portion Attributable To Parent1 OtherComprehensiveIncomeLossTaxPortionAttributableToParent1	-640000	USD
	us-gaap	Other Comprehensive Income Loss Tax Portion Attributable To Parent1 OtherComprehensiveIncomeLossTaxPortionAttributableToParent1	-3645000	USD
	us-gaap	Other Comprehensive Income Loss Tax Portion Attributable To Parent1 OtherComprehensiveIncomeLossTaxPortionAttributableToParent1	3598000	USD
CY2021Q3	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-3599000	USD
CY2020Q3	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-2411000	USD
	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-13717000	USD
	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	13532000	USD
CY2021Q3	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	30493000	USD
CY2020Q3	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	16775000	USD
	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	89764000	USD
	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	61296000	USD
CY2020Q4	us-gaap	Stockholders Equity StockholdersEquity	1068617000	USD
	us-gaap	Net Income Loss NetIncomeLoss	103481000	USD
	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-13717000	USD
	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.340
	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	32673000	USD
	us-gaap	Treasury Stock Value Acquired Cost Method TreasuryStockValueAcquiredCostMethod	15985000	USD
	us-gaap	Stock Issued During Period Value Treasury Stock Reissued StockIssuedDuringPeriodValueTreasuryStockReissued	2264000	USD
	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation And Exercise Of Stock Options AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationAndExerciseOfStockOptions	868000	USD
CY2021Q3	us-gaap	Stockholders Equity StockholdersEquity	1112855000	USD
CY2019Q4	us-gaap	Stockholders Equity StockholdersEquity	1055665000	USD
	us-gaap	Net Income Loss NetIncomeLoss	47764000	USD
	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	13532000	USD
	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.330
	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	32408000	USD
	us-gaap	Treasury Stock Value Acquired Cost Method TreasuryStockValueAcquiredCostMethod	14373000	USD
	us-gaap	Stock Issued During Period Value Treasury Stock Reissued StockIssuedDuringPeriodValueTreasuryStockReissued	1816000	USD
	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation And Exercise Of Stock Options AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationAndExerciseOfStockOptions	835000	USD
CY2020Q3	us-gaap	Stockholders Equity StockholdersEquity	1072831000	USD
CY2021Q2	us-gaap	Stockholders Equity StockholdersEquity	1106419000	USD
CY2021Q3	us-gaap	Net Income Loss NetIncomeLoss	34092000	USD
CY2021Q3	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-3599000	USD
CY2021Q3	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.115
CY2021Q3	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	11032000	USD
CY2021Q3	us-gaap	Treasury Stock Value Acquired Cost Method TreasuryStockValueAcquiredCostMethod	13327000	USD
CY2021Q3	us-gaap	Stock Issued During Period Value Treasury Stock Reissued StockIssuedDuringPeriodValueTreasuryStockReissued	0	USD
CY2021Q3	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation And Exercise Of Stock Options AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationAndExerciseOfStockOptions	302000	USD
CY2021Q3	us-gaap	Stockholders Equity StockholdersEquity	1112855000	USD
CY2020Q3	us-gaap	Net Income Loss NetIncomeLoss	19186000	USD
CY2020Q3	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-2411000	USD
CY2020Q3	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.110
CY2020Q3	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	10794000	USD
CY2020Q3	us-gaap	Treasury Stock Value Acquired Cost Method TreasuryStockValueAcquiredCostMethod	9153000	USD
CY2020Q3	us-gaap	Stock Issued During Period Value Treasury Stock Reissued StockIssuedDuringPeriodValueTreasuryStockReissued	0	USD
CY2020Q3	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation And Exercise Of Stock Options AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationAndExerciseOfStockOptions	298000	USD
CY2020Q3	us-gaap	Stockholders Equity StockholdersEquity	1072831000	USD
	us-gaap	Net Income Loss NetIncomeLoss	103481000	USD
	us-gaap	Net Income Loss NetIncomeLoss	47764000	USD
	us-gaap	Provision For Loan And Lease Losses ProvisionForLoanAndLeaseLosses	1353000	USD
	us-gaap	Provision For Loan And Lease Losses ProvisionForLoanAndLeaseLosses	49038000	USD
	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	1057000	USD
	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-5059000	USD
	us-gaap	Depreciation Amortization And Accretion Net DepreciationAmortizationAndAccretionNet	8784000	USD
	us-gaap	Depreciation Amortization And Accretion Net DepreciationAmortizationAndAccretionNet	8676000	USD
	fcf	Gain Loss On Securities And Other Assets GainLossOnSecuritiesAndOtherAssets	17093000	USD
	fcf	Gain Loss On Securities And Other Assets GainLossOnSecuritiesAndOtherAssets	12608000	USD
	us-gaap	Accretion Amortization Of Discounts And Premiums Investments AccretionAmortizationOfDiscountsAndPremiumsInvestments	-3693000	USD
	us-gaap	Accretion Amortization Of Discounts And Premiums Investments AccretionAmortizationOfDiscountsAndPremiumsInvestments	-4662000	USD
	fcf	Increase In Cash Surrender Valueof Boli IncreaseInCashSurrenderValueofBOLI	4617000	USD
	fcf	Increase In Cash Surrender Valueof Boli IncreaseInCashSurrenderValueofBOLI	4699000	USD
	us-gaap	Increase Decrease In Accrued Interest Receivable Net IncreaseDecreaseInAccruedInterestReceivableNet	-4590000	USD
	us-gaap	Increase Decrease In Accrued Interest Receivable Net IncreaseDecreaseInAccruedInterestReceivableNet	13105000	USD
	us-gaap	Payments For Origination Of Mortgage Loans Held For Sale PaymentsForOriginationOfMortgageLoansHeldForSale	308744000	USD
	us-gaap	Payments For Origination Of Mortgage Loans Held For Sale PaymentsForOriginationOfMortgageLoansHeldForSale	287196000	USD
	us-gaap	Proceeds From Sale Of Mortgage Loans Held For Sale ProceedsFromSaleOfMortgageLoansHeldForSale	338115000	USD
	us-gaap	Proceeds From Sale Of Mortgage Loans Held For Sale ProceedsFromSaleOfMortgageLoansHeldForSale	281424000	USD
	us-gaap	Increase Decrease In Interest Payable Net IncreaseDecreaseInInterestPayableNet	929000	USD
	us-gaap	Increase Decrease In Interest Payable Net IncreaseDecreaseInInterestPayableNet	575000	USD
	us-gaap	Increase Decrease In Accrued Income Taxes Payable IncreaseDecreaseInAccruedIncomeTaxesPayable	2142000	USD
	us-gaap	Increase Decrease In Accrued Income Taxes Payable IncreaseDecreaseInAccruedIncomeTaxesPayable	-536000	USD
	us-gaap	Increase Decrease In Other Operating Capital Net IncreaseDecreaseInOtherOperatingCapitalNet	14267000	USD
	us-gaap	Increase Decrease In Other Operating Capital Net IncreaseDecreaseInOtherOperatingCapitalNet	-1888000	USD
	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	119423000	USD
	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	70824000	USD
	us-gaap	Proceeds From Sale And Maturity Of Held To Maturity Securities ProceedsFromSaleAndMaturityOfHeldToMaturitySecurities	89698000	USD
	us-gaap	Proceeds From Sale And Maturity Of Held To Maturity Securities ProceedsFromSaleAndMaturityOfHeldToMaturitySecurities	76841000	USD
	us-gaap	Payments To Acquire Held To Maturity Securities PaymentsToAcquireHeldToMaturitySecurities	337054000	USD
	us-gaap	Payments To Acquire Held To Maturity Securities PaymentsToAcquireHeldToMaturitySecurities	9621000	USD
	us-gaap	Proceeds From Maturities Prepayments And Calls Of Available For Sale Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities	353788000	USD
	us-gaap	Proceeds From Maturities Prepayments And Calls Of Available For Sale Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities	272544000	USD
	us-gaap	Payments To Acquire Available For Sale Securities PaymentsToAcquireAvailableForSaleSecurities	667861000	USD
	us-gaap	Payments To Acquire Available For Sale Securities PaymentsToAcquireAvailableForSaleSecurities	282461000	USD
	us-gaap	Payments For Proceeds From Federal Home Loan Bank Stock PaymentsForProceedsFromFederalHomeLoanBankStock	3552000	USD
	us-gaap	Payments For Proceeds From Federal Home Loan Bank Stock PaymentsForProceedsFromFederalHomeLoanBankStock	21903000	USD
	us-gaap	Proceeds From Sale Of Federal Home Loan Bank Stock ProceedsFromSaleOfFederalHomeLoanBankStock	3060000	USD
	us-gaap	Proceeds From Sale Of Federal Home Loan Bank Stock ProceedsFromSaleOfFederalHomeLoanBankStock	25698000	USD
	us-gaap	Proceeds From Life Insurance Policies ProceedsFromLifeInsurancePolicies	5208000	USD
	us-gaap	Proceeds From Life Insurance Policies ProceedsFromLifeInsurancePolicies	1147000	USD
	us-gaap	Proceeds From Sale Of Loans Receivable ProceedsFromSaleOfLoansReceivable	52919000	USD
	us-gaap	Proceeds From Sale Of Loans Receivable ProceedsFromSaleOfLoansReceivable	25534000	USD
	us-gaap	Proceeds From Sale Of Other Productive Assets ProceedsFromSaleOfOtherProductiveAssets	6620000	USD
	us-gaap	Proceeds From Sale Of Other Productive Assets ProceedsFromSaleOfOtherProductiveAssets	4875000	USD
	us-gaap	Payments For Proceeds From Loans And Leases PaymentsForProceedsFromLoansAndLeases	37782000	USD
	us-gaap	Payments For Proceeds From Loans And Leases PaymentsForProceedsFromLoansAndLeases	798377000	USD
	us-gaap	Payments For Purchase Of Other Assets1 PaymentsForPurchaseOfOtherAssets1	6056000	USD
	us-gaap	Payments For Purchase Of Other Assets1 PaymentsForPurchaseOfOtherAssets1	6570000	USD
	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Before Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodBeforeTax	22069000	USD
	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-541012000	USD
	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-712293000	USD
	us-gaap	Proceeds From Repayments Of Short Term Debt ProceedsFromRepaymentsOfShortTermDebt	381000	USD
	us-gaap	Proceeds From Repayments Of Short Term Debt ProceedsFromRepaymentsOfShortTermDebt	-79497000	USD
	us-gaap	Increase Decrease In Deposits IncreaseDecreaseInDeposits	497915000	USD
	us-gaap	Increase Decrease In Deposits IncreaseDecreaseInDeposits	1026580000	USD
	us-gaap	Repayments Of Other Long Term Debt RepaymentsOfOtherLongTermDebt	50512000	USD
	us-gaap	Repayments Of Other Long Term Debt RepaymentsOfOtherLongTermDebt	493000	USD
	us-gaap	Repayments Of Long Term Capital Lease Obligations RepaymentsOfLongTermCapitalLeaseObligations	346000	USD
	us-gaap	Repayments Of Long Term Capital Lease Obligations RepaymentsOfLongTermCapitalLeaseObligations	321000	USD
	us-gaap	Payments Of Dividends PaymentsOfDividends	32673000	USD
	us-gaap	Payments Of Dividends PaymentsOfDividends	32408000	USD
	us-gaap	Proceeds From Sale Of Treasury Stock ProceedsFromSaleOfTreasuryStock	222000	USD
	us-gaap	Proceeds From Sale Of Treasury Stock ProceedsFromSaleOfTreasuryStock	222000	USD
	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	15305000	USD
	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	14373000	USD
	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	399682000	USD
	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	899710000	USD
	us-gaap	Cash And Cash Equivalents Period Increase Decrease CashAndCashEquivalentsPeriodIncreaseDecrease	-21907000	USD
	us-gaap	Cash And Cash Equivalents Period Increase Decrease CashAndCashEquivalentsPeriodIncreaseDecrease	258241000	USD
CY2020Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	356581000	USD
CY2019Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	121856000	USD
CY2021Q3	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	334674000	USD
CY2020Q3	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	380097000	USD
	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Before Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodBeforeTax	-18122000	USD
	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax	3805000	USD
	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax	-14317000	USD
	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax	-4635000	USD
	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax	17434000	USD
	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesBeforeTax	16000	USD
	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesTax	-3000	USD
	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax	13000	USD
	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesBeforeTax	47000	USD
	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesTax	-10000	USD
	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax	37000	USD
	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Adjustment Before Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentBeforeTax	-18138000	USD
	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesTax	3808000	USD
	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax	-14330000	USD
	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Adjustment Before Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentBeforeTax	22022000	USD
	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesTax	-4625000	USD
	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax	17397000	USD
	us-gaap	Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Before Tax OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodBeforeTax	776000	USD
	us-gaap	Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Tax OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodTax	-163000	USD
	us-gaap	Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodNetOfTax	613000	USD
	us-gaap	Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Before Tax OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodBeforeTax	-4892000	USD
	us-gaap	Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Tax OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodTax	1027000	USD
	us-gaap	Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodNetOfTax	-3865000	USD
	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci On Derivatives Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivativesBeforeTax	0	USD
	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci On Derivatives Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivativesTax	0	USD
	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci On Derivatives Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivativesNetOfTax	0	USD
	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci On Derivatives Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivativesBeforeTax	0	USD
	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci On Derivatives Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivativesTax	0	USD
	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci On Derivatives Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivativesNetOfTax	0	USD
	us-gaap	Other Comprehensive Income Loss Derivatives Qualifying As Hedges Before Tax OtherComprehensiveIncomeLossDerivativesQualifyingAsHedgesBeforeTax	776000	USD
	us-gaap	Other Comprehensive Income Loss Derivatives Qualifying As Hedges Tax OtherComprehensiveIncomeLossDerivativesQualifyingAsHedgesTax	-163000	USD
	us-gaap	Other Comprehensive Income Loss Derivatives Qualifying As Hedges Net Of Tax OtherComprehensiveIncomeLossDerivativesQualifyingAsHedgesNetOfTax	613000	USD
	us-gaap	Other Comprehensive Income Loss Derivatives Qualifying As Hedges Before Tax OtherComprehensiveIncomeLossDerivativesQualifyingAsHedgesBeforeTax	-4892000	USD
	us-gaap	Other Comprehensive Income Loss Derivatives Qualifying As Hedges Tax OtherComprehensiveIncomeLossDerivativesQualifyingAsHedgesTax	1027000	USD
	us-gaap	Other Comprehensive Income Loss Derivatives Qualifying As Hedges Net Of Tax OtherComprehensiveIncomeLossDerivativesQualifyingAsHedgesNetOfTax	-3865000	USD
	us-gaap	Other Comprehensive Income Loss Before Tax OtherComprehensiveIncomeLossBeforeTax	-17362000	USD
	us-gaap	Other Comprehensive Income Loss Tax OtherComprehensiveIncomeLossTax	3645000	USD
	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-13717000	USD
	us-gaap	Other Comprehensive Income Loss Before Tax OtherComprehensiveIncomeLossBeforeTax	17130000	USD
	us-gaap	Other Comprehensive Income Loss Tax OtherComprehensiveIncomeLossTax	-3598000	USD
	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	13532000	USD
CY2021Q3	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Before Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodBeforeTax	-4025000	USD
CY2021Q3	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax	844000	USD
CY2021Q3	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax	-3181000	USD
CY2020Q3	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Before Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodBeforeTax	-3256000	USD
CY2020Q3	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax	684000	USD
CY2020Q3	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax	-2572000	USD
CY2021Q3	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesBeforeTax	0	USD
CY2021Q3	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesTax	0	USD
CY2021Q3	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax	0	USD
CY2020Q3	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesBeforeTax	20000	USD
CY2020Q3	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesTax	-4000	USD
CY2020Q3	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax	16000	USD
CY2021Q3	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Adjustment Before Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentBeforeTax	-4025000	USD
CY2021Q3	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesTax	844000	USD
CY2021Q3	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax	-3181000	USD
CY2020Q3	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Adjustment Before Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentBeforeTax	-3276000	USD
CY2020Q3	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesTax	688000	USD
CY2020Q3	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax	-2588000	USD
CY2021Q3	us-gaap	Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Before Tax OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodBeforeTax	-529000	USD
CY2021Q3	us-gaap	Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Tax OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodTax	111000	USD
CY2021Q3	us-gaap	Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodNetOfTax	-418000	USD
CY2020Q3	us-gaap	Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Before Tax OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodBeforeTax	225000	USD
CY2020Q3	us-gaap	Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Tax OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodTax	-48000	USD
CY2020Q3	us-gaap	Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodNetOfTax	177000	USD
CY2021Q3	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci On Derivatives Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivativesBeforeTax	0	USD
CY2021Q3	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci On Derivatives Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivativesTax	0	USD
CY2021Q3	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci On Derivatives Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivativesNetOfTax	0	USD
CY2020Q3	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci On Derivatives Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivativesBeforeTax	0	USD
CY2020Q3	us-gaap	Other Comprehensive Income Loss Derivatives Qualifying As Hedges Before Tax OtherComprehensiveIncomeLossDerivativesQualifyingAsHedgesBeforeTax	225000	USD
CY2020Q3	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci On Derivatives Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivativesTax	0	USD
CY2020Q3	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci On Derivatives Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivativesNetOfTax	0	USD
CY2021Q3	us-gaap	Other Comprehensive Income Loss Derivatives Qualifying As Hedges Before Tax OtherComprehensiveIncomeLossDerivativesQualifyingAsHedgesBeforeTax	-529000	USD
CY2021Q3	us-gaap	Other Comprehensive Income Loss Derivatives Qualifying As Hedges Tax OtherComprehensiveIncomeLossDerivativesQualifyingAsHedgesTax	111000	USD
CY2021Q3	us-gaap	Other Comprehensive Income Loss Derivatives Qualifying As Hedges Net Of Tax OtherComprehensiveIncomeLossDerivativesQualifyingAsHedgesNetOfTax	-418000	USD
CY2020Q3	us-gaap	Other Comprehensive Income Loss Derivatives Qualifying As Hedges Before Tax OtherComprehensiveIncomeLossDerivativesQualifyingAsHedgesBeforeTax	225000	USD
CY2020Q3	us-gaap	Other Comprehensive Income Loss Derivatives Qualifying As Hedges Tax OtherComprehensiveIncomeLossDerivativesQualifyingAsHedgesTax	-48000	USD
CY2020Q3	us-gaap	Other Comprehensive Income Loss Derivatives Qualifying As Hedges Net Of Tax OtherComprehensiveIncomeLossDerivativesQualifyingAsHedgesNetOfTax	177000	USD
CY2021Q3	us-gaap	Other Comprehensive Income Loss Before Tax OtherComprehensiveIncomeLossBeforeTax	-4554000	USD
CY2021Q3	us-gaap	Other Comprehensive Income Loss Tax OtherComprehensiveIncomeLossTax	955000	USD
CY2021Q3	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-3599000	USD
CY2020Q3	us-gaap	Other Comprehensive Income Loss Before Tax OtherComprehensiveIncomeLossBeforeTax	-3051000	USD
CY2020Q3	us-gaap	Other Comprehensive Income Loss Tax OtherComprehensiveIncomeLossTax	640000	USD
CY2020Q3	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-2411000	USD
	us-gaap	Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodNetOfTax	613000	USD
	us-gaap	Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodNetOfTax	-3865000	USD
	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci On Derivatives Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivativesNetOfTax	0	USD
	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci On Derivatives Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivativesNetOfTax	0	USD
CY2021Q3	us-gaap	Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodNetOfTax	-418000	USD
CY2020Q3	us-gaap	Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodNetOfTax	177000	USD
CY2021Q3	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci On Derivatives Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivativesNetOfTax	0	USD
CY2020Q3	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci On Derivatives Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivativesNetOfTax	0	USD
	us-gaap	Interest Paid Net InterestPaidNet	11039000	USD
	us-gaap	Interest Paid Net InterestPaidNet	26687000	USD
	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	22374000	USD
	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	16207000	USD
	fcf	Loans Transferredto Other Real Estate Ownedand Repossessions LoansTransferredtoOtherRealEstateOwnedandRepossessions	2533000	USD
	fcf	Loans Transferredto Other Real Estate Ownedand Repossessions LoansTransferredtoOtherRealEstateOwnedandRepossessions	3206000	USD
	us-gaap	Transfer Of Portfolio Loans And Leases To Held For Sale1 TransferOfPortfolioLoansAndLeasesToHeldForSale1	55700000	USD
	us-gaap	Transfer Of Portfolio Loans And Leases To Held For Sale1 TransferOfPortfolioLoansAndLeasesToHeldForSale1	27391000	USD
	us-gaap	Transfer Of Loans Held For Sale To Portfolio Loans1 TransferOfLoansHeldForSaleToPortfolioLoans1	0	USD
	us-gaap	Transfer Of Loans Held For Sale To Portfolio Loans1 TransferOfLoansHeldForSaleToPortfolioLoans1	1908000	USD
	fcf	Gross Increase In Market Value Adjustment To Securities Available For Sale GrossIncreaseInMarketValueAdjustmentToSecuritiesAvailableForSale	-18138000	USD
	fcf	Gross Increase In Market Value Adjustment To Securities Available For Sale GrossIncreaseInMarketValueAdjustmentToSecuritiesAvailableForSale	22022000	USD
	fcf	Gross Increasein Market Value Adjustmentto Derivatives GrossIncreaseinMarketValueAdjustmenttoDerivatives	-776000	USD
	fcf	Gross Increasein Market Value Adjustmentto Derivatives GrossIncreaseinMarketValueAdjustmenttoDerivatives	-4892000	USD
	us-gaap	Transfer To Investments TransferToInvestments	0	USD
	us-gaap	Transfer To Investments TransferToInvestments	22644000	USD
	us-gaap	Stock Issued1 StockIssued1	1594000	USD
	us-gaap	Other Significant Noncash Transaction Value Of Consideration Given1 OtherSignificantNoncashTransactionValueOfConsiderationGiven1	6929000	USD
	us-gaap	Other Significant Noncash Transaction Value Of Consideration Given1 OtherSignificantNoncashTransactionValueOfConsiderationGiven1	0	USD
	us-gaap	Stock Issued1 StockIssued1	2042000	USD
	fcf	Unsettled Payments For The Acquisition Of Treasury Stock UnsettledPaymentsForTheAcquisitionOfTreasuryStock	680000	USD
	fcf	Unsettled Payments For The Acquisition Of Treasury Stock UnsettledPaymentsForTheAcquisitionOfTreasuryStock	0	USD
	fcf	Unsettled Bank Owned Life Insurance Proceeds UnsettledBankOwnedLifeInsuranceProceeds	384000	USD
	fcf	Unsettled Bank Owned Life Insurance Proceeds UnsettledBankOwnedLifeInsuranceProceeds	384000	USD
CY2021Q3	us-gaap	Weighted Average Number Of Shares Issued Basic WeightedAverageNumberOfSharesIssuedBasic	113914902	shares
CY2020Q3	us-gaap	Weighted Average Number Of Shares Issued Basic WeightedAverageNumberOfSharesIssuedBasic	113914902	shares
	us-gaap	Weighted Average Number Of Shares Issued Basic WeightedAverageNumberOfSharesIssuedBasic	113914902	shares
	us-gaap	Weighted Average Number Of Shares Issued Basic WeightedAverageNumberOfSharesIssuedBasic	113914902	shares
CY2021Q3	us-gaap	Weighted Average Number Of Shares Treasury Stock WeightedAverageNumberOfSharesTreasuryStock	18103611	shares
CY2020Q3	us-gaap	Weighted Average Number Of Shares Treasury Stock WeightedAverageNumberOfSharesTreasuryStock	15821469	shares
	us-gaap	Weighted Average Number Of Shares Treasury Stock WeightedAverageNumberOfSharesTreasuryStock	17840694	shares
	us-gaap	Weighted Average Number Of Shares Treasury Stock WeightedAverageNumberOfSharesTreasuryStock	15761114	shares
CY2021Q3	fcf	Weighted Average Numberof Shares Deferred Compensation Plans WeightedAverageNumberofSharesDeferredCompensationPlans	55615	shares
CY2020Q3	fcf	Weighted Average Numberof Shares Deferred Compensation Plans WeightedAverageNumberofSharesDeferredCompensationPlans	45454	shares
	fcf	Weighted Average Numberof Shares Deferred Compensation Plans WeightedAverageNumberofSharesDeferredCompensationPlans	55581	shares
	fcf	Weighted Average Numberof Shares Deferred Compensation Plans WeightedAverageNumberofSharesDeferredCompensationPlans	41790	shares
CY2021Q3	us-gaap	Weighted Average Number Of Shares Restricted Stock WeightedAverageNumberOfSharesRestrictedStock	139255	shares
CY2020Q3	us-gaap	Weighted Average Number Of Shares Restricted Stock WeightedAverageNumberOfSharesRestrictedStock	130883	shares
	us-gaap	Weighted Average Number Of Shares Restricted Stock WeightedAverageNumberOfSharesRestrictedStock	134759	shares
	us-gaap	Weighted Average Number Of Shares Restricted Stock WeightedAverageNumberOfSharesRestrictedStock	121249	shares
CY2021Q3	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	95616421	shares
CY2020Q3	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	97917096	shares
	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	95883868	shares
	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	97990749	shares
CY2021Q3	us-gaap	Incremental Common Shares Attributable To Participating Nonvested Shares With Non Forfeitable Dividend Rights IncrementalCommonSharesAttributableToParticipatingNonvestedSharesWithNonForfeitableDividendRights	220268	shares
CY2020Q3	us-gaap	Incremental Common Shares Attributable To Participating Nonvested Shares With Non Forfeitable Dividend Rights IncrementalCommonSharesAttributableToParticipatingNonvestedSharesWithNonForfeitableDividendRights	197545	shares
	us-gaap	Incremental Common Shares Attributable To Participating Nonvested Shares With Non Forfeitable Dividend Rights IncrementalCommonSharesAttributableToParticipatingNonvestedSharesWithNonForfeitableDividendRights	191119	shares
	us-gaap	Incremental Common Shares Attributable To Participating Nonvested Shares With Non Forfeitable Dividend Rights IncrementalCommonSharesAttributableToParticipatingNonvestedSharesWithNonForfeitableDividendRights	188255	shares
CY2021Q3	fcf	Weighted Average Number Of Additional Shares Deferred Compensation Plan WeightedAverageNumberOfAdditionalSharesDeferredCompensationPlan	55615	shares
CY2020Q3	fcf	Weighted Average Number Of Additional Shares Deferred Compensation Plan WeightedAverageNumberOfAdditionalSharesDeferredCompensationPlan	45502	shares
	fcf	Weighted Average Number Of Additional Shares Deferred Compensation Plan WeightedAverageNumberOfAdditionalSharesDeferredCompensationPlan	55615	shares
	fcf	Weighted Average Number Of Additional Shares Deferred Compensation Plan WeightedAverageNumberOfAdditionalSharesDeferredCompensationPlan	45502	shares
CY2021Q3	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	95892304	shares
CY2020Q3	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	98160143	shares
	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	96130602	shares
	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	98224506	shares
CY2021Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.36
CY2020Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.20
	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.08
	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.49
CY2021Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.36
CY2020Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.20
	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.08
	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.49
CY2021Q3	fcf	Notional Amount Of Performance Standby Letters Of Credit NotionalAmountOfPerformanceStandbyLettersOfCredit	2500000	USD
CY2021Q3	fcf	Notional Amount Of Financial Standby Letters Of Credit NotionalAmountOfFinancialStandbyLettersOfCredit	100000	USD
CY2021Q3	fcf	Notional Amount Of Commercial Letters Of Credit NotionalAmountOfCommercialLettersOfCredit	0	USD
CY2021Q3	us-gaap	Fair Value Concentration Of Risk Commitments FairValueConcentrationOfRiskCommitments	100000	USD
CY2020Q4	us-gaap	Fair Value Concentration Of Risk Commitments FairValueConcentrationOfRiskCommitments	100000	USD
CY2021Q3	fcf	Reserve For Off Balance Sheet Activities ReserveForOffBalanceSheetActivities	6400000	USD
CY2020Q4	fcf	Reserve For Off Balance Sheet Activities ReserveForOffBalanceSheetActivities	7400000	USD
CY2021Q3	us-gaap	Available For Sale Securities Amortized Cost AvailableForSaleSecuritiesAmortizedCost	1117384000	USD
CY2021Q3	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Gain Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax	15696000	USD
CY2021Q3	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Loss Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax	8124000	USD
CY2021Q3	us-gaap	Available For Sale Securities AvailableForSaleSecurities	1124956000	USD
CY2020Q4	us-gaap	Available For Sale Securities Amortized Cost AvailableForSaleSecuritiesAmortizedCost	805515000	USD
CY2020Q4	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Gain Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax	25708000	USD
CY2020Q4	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Loss Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax	0	USD
CY2020Q4	us-gaap	Available For Sale Securities AvailableForSaleSecurities	831223000	USD
CY2021Q3	us-gaap	Available For Sale Securities Debt Maturities Single Maturity Date Amortized Cost Basis AvailableForSaleSecuritiesDebtMaturitiesSingleMaturityDateAmortizedCostBasis	5000000	USD
CY2021Q3	us-gaap	Available For Sale Securities Debt Maturities Within One Year Fair Value AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearFairValue	5027000	USD
CY2021Q3	us-gaap	Available For Sale Securities Debt Maturities After One Through Five Years Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsAmortizedCost	13872000	USD
CY2021Q3	us-gaap	Available For Sale Securities Debt Maturities After One Through Five Years Fair Value AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsFairValue	14498000	USD
CY2021Q3	us-gaap	Available For Sale Securities Debt Maturities After Five Through Ten Years Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsAmortizedCost	19821000	USD
CY2021Q3	us-gaap	Available For Sale Securities Debt Maturities After Five Through Ten Years Fair Value AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsFairValue	20316000	USD
CY2021Q3	us-gaap	Available For Sale Securities Debt Maturities After Ten Years Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesAfterTenYearsAmortizedCost	0	USD
CY2021Q3	us-gaap	Available For Sale Securities Debt Maturities After Ten Years Fair Value AvailableForSaleSecuritiesDebtMaturitiesAfterTenYearsFairValue	0	USD
CY2021Q3	us-gaap	Available For Sale Securities Debt Maturities Within One Year Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearAmortizedCost	38693000	USD
CY2021Q3	us-gaap	Available For Sale Securities Debt Maturities Single Maturity Date AvailableForSaleSecuritiesDebtMaturitiesSingleMaturityDate	39841000	USD
CY2021Q3	us-gaap	Available For Sale Securities Debt Maturities Without Single Maturity Date Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesWithoutSingleMaturityDateAmortizedCost	1078691000	USD
CY2021Q3	us-gaap	Available For Sale Securities Debt Maturities Without Single Maturity Date Fair Value AvailableForSaleSecuritiesDebtMaturitiesWithoutSingleMaturityDateFairValue	1085115000	USD
	us-gaap	Proceeds From Sale Of Available For Sale Securities ProceedsFromSaleOfAvailableForSaleSecurities	0	USD
	us-gaap	Proceeds From Sale Of Available For Sale Securities ProceedsFromSaleOfAvailableForSaleSecurities	0	USD
	us-gaap	Available For Sale Securities Gross Realized Gains AvailableForSaleSecuritiesGrossRealizedGains	0	USD
	us-gaap	Available For Sale Securities Gross Realized Gains AvailableForSaleSecuritiesGrossRealizedGains	0	USD
	us-gaap	Available For Sale Securities Gross Realized Losses AvailableForSaleSecuritiesGrossRealizedLosses	0	USD
	us-gaap	Available For Sale Securities Gross Realized Losses AvailableForSaleSecuritiesGrossRealizedLosses	0	USD
	us-gaap	Availableforsale Securities Gross Realized Gain Loss Excluding Other Than Temporary Impairments AvailableforsaleSecuritiesGrossRealizedGainLossExcludingOtherThanTemporaryImpairments	0	USD
	us-gaap	Availableforsale Securities Gross Realized Gain Loss Excluding Other Than Temporary Impairments AvailableforsaleSecuritiesGrossRealizedGainLossExcludingOtherThanTemporaryImpairments	0	USD
	fcf	Gross Gains GrossGains	16000	USD
	fcf	Gross Gains GrossGains	47000	USD
	fcf	Gross Losses GrossLosses	0	USD
	fcf	Gross Losses GrossLosses	0	USD
	fcf	Gain Losses Maturities And Impairment GainLossesMaturitiesAndImpairment	16000	USD
	fcf	Gain Losses Maturities And Impairment GainLossesMaturitiesAndImpairment	47000	USD
	fcf	Net Gains And Impairment NetGainsAndImpairment	16000	USD
	fcf	Net Gains And Impairment NetGainsAndImpairment	47000	USD
CY2021Q3	us-gaap	Debt Securities Available For Sale Restricted DebtSecuritiesAvailableForSaleRestricted	802200000	USD
CY2020Q4	us-gaap	Debt Securities Available For Sale Restricted DebtSecuritiesAvailableForSaleRestricted	792100000	USD
CY2021Q3	us-gaap	Held To Maturity Securities HeldToMaturitySecurities	548057000	USD
CY2021Q3	us-gaap	Held To Maturity Securities Accumulated Unrecognized Holding Gain HeldToMaturitySecuritiesAccumulatedUnrecognizedHoldingGain	5243000	USD
CY2021Q3	us-gaap	Held To Maturity Securities Accumulated Unrecognized Holding Loss HeldToMaturitySecuritiesAccumulatedUnrecognizedHoldingLoss	5957000	USD
CY2021Q3	us-gaap	Held To Maturity Securities Fair Value HeldToMaturitySecuritiesFairValue	547343000	USD
CY2020Q4	us-gaap	Held To Maturity Securities HeldToMaturitySecurities	361844000	USD
CY2020Q4	us-gaap	Held To Maturity Securities Accumulated Unrecognized Holding Gain HeldToMaturitySecuritiesAccumulatedUnrecognizedHoldingGain	8017000	USD
CY2020Q4	us-gaap	Held To Maturity Securities Accumulated Unrecognized Holding Loss HeldToMaturitySecuritiesAccumulatedUnrecognizedHoldingLoss	10000	USD
CY2020Q4	us-gaap	Held To Maturity Securities Fair Value HeldToMaturitySecuritiesFairValue	369851000	USD
CY2021Q3	us-gaap	Held To Maturity Securities Debt Maturities Within One Year Net Carrying Amount HeldToMaturitySecuritiesDebtMaturitiesWithinOneYearNetCarryingAmount	1800000	USD
CY2021Q3	us-gaap	Held To Maturity Securities Debt Maturities Within One Year Fair Value HeldToMaturitySecuritiesDebtMaturitiesWithinOneYearFairValue	1807000	USD
CY2021Q3	us-gaap	Held To Maturity Securities Debt Maturities After One Through Five Years Net Carrying Amount HeldToMaturitySecuritiesDebtMaturitiesAfterOneThroughFiveYearsNetCarryingAmount	5568000	USD
CY2021Q3	us-gaap	Held To Maturity Securities Debt Maturities After One Through Five Years Fair Value HeldToMaturitySecuritiesDebtMaturitiesAfterOneThroughFiveYearsFairValue	5616000	USD
CY2021Q3	us-gaap	Held To Maturity Securities Debt Maturities After Five Through Ten Years Net Carrying Amount HeldToMaturitySecuritiesDebtMaturitiesAfterFiveThroughTenYearsNetCarryingAmount	43207000	USD
CY2021Q3	us-gaap	Held To Maturity Securities Debt Maturities After Five Through Ten Years Fair Value HeldToMaturitySecuritiesDebtMaturitiesAfterFiveThroughTenYearsFairValue	42769000	USD
CY2021Q3	us-gaap	Held To Maturity Securities Debt Maturities After Ten Years Net Carrying Amount HeldToMaturitySecuritiesDebtMaturitiesAfterTenYearsNetCarryingAmount	3496000	USD
CY2021Q3	us-gaap	Held To Maturity Securities Debt Maturities After Ten Years Fair Value HeldToMaturitySecuritiesDebtMaturitiesAfterTenYearsFairValue	3520000	USD
CY2021Q3	us-gaap	Held To Maturity Securities Debt Maturities Single Maturity Date Amortized Cost Basis HeldToMaturitySecuritiesDebtMaturitiesSingleMaturityDateAmortizedCostBasis	54071000	USD
CY2021Q3	us-gaap	Held To Maturity Securities Debt Maturities Single Maturity Date Fair Value HeldToMaturitySecuritiesDebtMaturitiesSingleMaturityDateFairValue	53712000	USD
CY2021Q3	us-gaap	Held To Maturity Securities Debt Maturities Without Single Maturity Date Net Carrying Amount HeldToMaturitySecuritiesDebtMaturitiesWithoutSingleMaturityDateNetCarryingAmount	493986000	USD
CY2020Q4	us-gaap	Federal Home Loan Bank Stock FederalHomeLoanBankStock	10600000	USD
CY2021Q3	us-gaap	Held To Maturity Securities Debt Maturities Without Single Maturity Date Fair Value HeldToMaturitySecuritiesDebtMaturitiesWithoutSingleMaturityDateFairValue	493631000	USD
CY2021Q3	us-gaap	Held To Maturity Securities HeldToMaturitySecurities	548057000	USD
CY2021Q3	us-gaap	Held To Maturity Securities Fair Value HeldToMaturitySecuritiesFairValue	547343000	USD
CY2021Q3	us-gaap	Held To Maturity Securities Restricted HeldToMaturitySecuritiesRestricted	334500000	USD
CY2020Q4	us-gaap	Held To Maturity Securities Restricted HeldToMaturitySecuritiesRestricted	228100000	USD
CY2021Q3	us-gaap	Federal Home Loan Bank Stock FederalHomeLoanBankStock	11000000	USD
CY2020Q4	us-gaap	Other Investments And Securities At Cost OtherInvestmentsAndSecuritiesAtCost	1700000	USD
CY2021Q3	us-gaap	Other Investments And Securities At Cost OtherInvestmentsAndSecuritiesAtCost	1700000	USD
CY2021Q3	fcf	Investment Securities Continuous Unrealized Loss Position Lessthan Twelve Months Fair Value InvestmentSecuritiesContinuousUnrealizedLossPositionLessthanTwelveMonthsFairValue	894437000	USD
CY2021Q3	fcf	Investment Securities Continuous Unrealized Loss Position Lessthan12 Months Accumulated Loss InvestmentSecuritiesContinuousUnrealizedLossPositionLessthan12MonthsAccumulatedLoss	14081000	USD
CY2021Q3	fcf	Investment Securities Continuous Unrealized Loss Position Twelve Monthsor Longer Fair Value InvestmentSecuritiesContinuousUnrealizedLossPositionTwelveMonthsorLongerFairValue	0	USD
CY2021Q3	fcf	Investment Securities Continuous Unrealized Loss Position12 Monthsor Longer Accumulated Loss InvestmentSecuritiesContinuousUnrealizedLossPosition12MonthsorLongerAccumulatedLoss	0	USD
CY2021Q3	fcf	Investment Securities Continuous Unrealized Loss Position Fair Value Total InvestmentSecuritiesContinuousUnrealizedLossPositionFairValueTotal	894437000	USD
CY2021Q3	fcf	Investment Securities Continuous Unrealized Loss Position Accumulated Loss InvestmentSecuritiesContinuousUnrealizedLossPositionAccumulatedLoss	14081000	USD
CY2021Q3	fcf	Investment Securitiesin Unrealized Loss Position Qualitative Disclosure Numberof Positions Total InvestmentSecuritiesinUnrealizedLossPositionQualitativeDisclosureNumberofPositionsTotal	52
	us-gaap	Other Than Temporary Impairment Losses Investments Portion Recognized In Earnings Net OtherThanTemporaryImpairmentLossesInvestmentsPortionRecognizedInEarningsNet	0	USD
CY2020Q4	fcf	Investment Securities Continuous Unrealized Loss Position Lessthan Twelve Months Fair Value InvestmentSecuritiesContinuousUnrealizedLossPositionLessthanTwelveMonthsFairValue	3755000	USD
CY2020Q4	fcf	Investment Securities Continuous Unrealized Loss Position Lessthan12 Months Accumulated Loss InvestmentSecuritiesContinuousUnrealizedLossPositionLessthan12MonthsAccumulatedLoss	10000	USD
CY2020Q4	fcf	Investment Securities Continuous Unrealized Loss Position Twelve Monthsor Longer Fair Value InvestmentSecuritiesContinuousUnrealizedLossPositionTwelveMonthsorLongerFairValue	0	USD
CY2020Q4	fcf	Investment Securities Continuous Unrealized Loss Position12 Monthsor Longer Accumulated Loss InvestmentSecuritiesContinuousUnrealizedLossPosition12MonthsorLongerAccumulatedLoss	0	USD
CY2020Q4	fcf	Investment Securities Continuous Unrealized Loss Position Fair Value Total InvestmentSecuritiesContinuousUnrealizedLossPositionFairValueTotal	3755000	USD
CY2020Q4	fcf	Investment Securities Continuous Unrealized Loss Position Accumulated Loss InvestmentSecuritiesContinuousUnrealizedLossPositionAccumulatedLoss	10000	USD
	us-gaap	Other Than Temporary Impairment Losses Investments Portion Recognized In Earnings Net OtherThanTemporaryImpairmentLossesInvestmentsPortionRecognizedInEarningsNet	0	USD
CY2021Q3	fcf	Unearned Deferred Fees Costs On Loans UnearnedDeferredFeesCostsOnLoans	2600000	USD
CY2020Q4	fcf	Unearned Deferred Fees Costs On Loans UnearnedDeferredFeesCostsOnLoans	6000000	USD
CY2021Q3	us-gaap	Unearned Premiums UnearnedPremiums	6300000	USD
CY2020Q4	us-gaap	Unearned Premiums UnearnedPremiums	7000000	USD
CY2021Q3	us-gaap	Loans And Leases Receivable Net Of Deferred Income LoansAndLeasesReceivableNetOfDeferredIncome	6732580000	USD
CY2020Q4	us-gaap	Loans And Leases Receivable Net Of Deferred Income LoansAndLeasesReceivableNetOfDeferredIncome	6761183000	USD
	fcf	Forecasted Value National Unemployment Percent ForecastedValueNationalUnemploymentPercent	0.0513
CY2021Q3	us-gaap	Loans And Leases Receivable Gross Carrying Amount LoansAndLeasesReceivableGrossCarryingAmount	6732580000	USD
CY2020Q4	us-gaap	Loans And Leases Receivable Gross Carrying Amount LoansAndLeasesReceivableGrossCarryingAmount	6761183000	USD
CY2021Q3	us-gaap	Loans And Leases Receivable Gross Carrying Amount LoansAndLeasesReceivableGrossCarryingAmount	6732580000	USD
CY2020Q4	us-gaap	Loans And Leases Receivable Gross Carrying Amount LoansAndLeasesReceivableGrossCarryingAmount	6761183000	USD
	us-gaap	Financing Receivable Allowance For Credit Loss Writeoff After Recovery FinancingReceivableAllowanceForCreditLossWriteoffAfterRecovery	9500000	USD
	us-gaap	Financing Receivable Allowance For Credit Loss Writeoff After Recovery FinancingReceivableAllowanceForCreditLossWriteoffAfterRecovery	12400000	USD
CY2021Q3	us-gaap	Notes Receivable Gross NotesReceivableGross	6732580000	USD
CY2020Q4	us-gaap	Notes Receivable Gross NotesReceivableGross	6761183000	USD
	fcf	Non Accrual Status Of Loans After Number Of Days Past Due NonAccrualStatusOfLoansAfterNumberOfDaysPastDue	P90D
CY2021Q3	fcf	Loan Pay Off LoanPayOff	6900000	USD
CY2021Q3	fcf	Specific Reserve Related To Loan Pay Off SpecificReserveRelatedToLoanPayOff	300000	USD
CY2021Q3	us-gaap	Impaired Financing Receivable With No Related Allowance Recorded Investment ImpairedFinancingReceivableWithNoRelatedAllowanceRecordedInvestment	28474000	USD
CY2021Q3	us-gaap	Impaired Financing Receivable With No Related Allowance Unpaid Principal Balance ImpairedFinancingReceivableWithNoRelatedAllowanceUnpaidPrincipalBalance	41980000	USD
CY2020Q4	us-gaap	Impaired Financing Receivable With No Related Allowance Recorded Investment ImpairedFinancingReceivableWithNoRelatedAllowanceRecordedInvestment	34086000	USD
CY2020Q4	us-gaap	Impaired Financing Receivable With No Related Allowance Unpaid Principal Balance ImpairedFinancingReceivableWithNoRelatedAllowanceUnpaidPrincipalBalance	40124000	USD
CY2021Q3	us-gaap	Impaired Financing Receivable With Related Allowance Recorded Investment ImpairedFinancingReceivableWithRelatedAllowanceRecordedInvestment	9612000	USD
CY2021Q3	us-gaap	Impaired Financing Receivable With Related Allowance Unpaid Principal Balance ImpairedFinancingReceivableWithRelatedAllowanceUnpaidPrincipalBalance	9692000	USD
CY2021Q3	us-gaap	Impaired Financing Receivable Related Allowance ImpairedFinancingReceivableRelatedAllowance	980000	USD
CY2020Q4	us-gaap	Impaired Financing Receivable With Related Allowance Recorded Investment ImpairedFinancingReceivableWithRelatedAllowanceRecordedInvestment	19967000	USD
CY2020Q4	us-gaap	Impaired Financing Receivable With Related Allowance Unpaid Principal Balance ImpairedFinancingReceivableWithRelatedAllowanceUnpaidPrincipalBalance	25207000	USD
CY2020Q4	us-gaap	Impaired Financing Receivable Related Allowance ImpairedFinancingReceivableRelatedAllowance	4906000	USD
CY2021Q3	us-gaap	Impaired Financing Receivable Recorded Investment ImpairedFinancingReceivableRecordedInvestment	38086000	USD
CY2021Q3	us-gaap	Impaired Financing Receivable Unpaid Principal Balance ImpairedFinancingReceivableUnpaidPrincipalBalance	51672000	USD
CY2021Q3	us-gaap	Impaired Financing Receivable Related Allowance ImpairedFinancingReceivableRelatedAllowance	980000	USD
CY2020Q4	us-gaap	Impaired Financing Receivable Recorded Investment ImpairedFinancingReceivableRecordedInvestment	54053000	USD
CY2020Q4	us-gaap	Impaired Financing Receivable Unpaid Principal Balance ImpairedFinancingReceivableUnpaidPrincipalBalance	65331000	USD
CY2020Q4	us-gaap	Impaired Financing Receivable Related Allowance ImpairedFinancingReceivableRelatedAllowance	4906000	USD
	us-gaap	Impaired Financing Receivable With No Related Allowance Average Recorded Investment ImpairedFinancingReceivableWithNoRelatedAllowanceAverageRecordedInvestment	41123000	USD
	us-gaap	Impaired Financing Receivable With No Related Allowance Interest Income Cash Basis Method ImpairedFinancingReceivableWithNoRelatedAllowanceInterestIncomeCashBasisMethod	438000	USD
	us-gaap	Impaired Financing Receivable With Related Allowance Average Recorded Investment ImpairedFinancingReceivableWithRelatedAllowanceAverageRecordedInvestment	9228000	USD
	us-gaap	Impaired Financing Receivable With Related Allowance Interest Income Cash Basis Method ImpairedFinancingReceivableWithRelatedAllowanceInterestIncomeCashBasisMethod	50000	USD
	us-gaap	Impaired Financing Receivable Average Recorded Investment ImpairedFinancingReceivableAverageRecordedInvestment	50351000	USD
	us-gaap	Impaired Financing Receivable Interest Income Cash Basis Method ImpairedFinancingReceivableInterestIncomeCashBasisMethod	488000	USD
CY2021Q3	us-gaap	Impaired Financing Receivable With No Related Allowance Average Recorded Investment ImpairedFinancingReceivableWithNoRelatedAllowanceAverageRecordedInvestment	36443000	USD
CY2021Q3	us-gaap	Impaired Financing Receivable With No Related Allowance Interest Income Cash Basis Method ImpairedFinancingReceivableWithNoRelatedAllowanceInterestIncomeCashBasisMethod	131000	USD
CY2021Q3	us-gaap	Impaired Financing Receivable With Related Allowance Average Recorded Investment ImpairedFinancingReceivableWithRelatedAllowanceAverageRecordedInvestment	9318000	USD
CY2021Q3	us-gaap	Impaired Financing Receivable With Related Allowance Interest Income Cash Basis Method ImpairedFinancingReceivableWithRelatedAllowanceInterestIncomeCashBasisMethod	19000	USD
CY2021Q3	us-gaap	Impaired Financing Receivable Average Recorded Investment ImpairedFinancingReceivableAverageRecordedInvestment	45761000	USD
CY2021Q3	us-gaap	Impaired Financing Receivable Interest Income Cash Basis Method ImpairedFinancingReceivableInterestIncomeCashBasisMethod	150000	USD
CY2021Q3	fcf	Unfunded Commitments Related To Nonperforming Loans UnfundedCommitmentsRelatedToNonperformingLoans	200000	USD
CY2020Q4	fcf	Unfunded Commitments Related To Nonperforming Loans UnfundedCommitmentsRelatedToNonperformingLoans	200000	USD
CY2020Q4	fcf	Off Balance Sheet Reserve To Nonperforming Loans OffBalanceSheetReserveToNonperformingLoans	26000	USD
CY2021Q3	us-gaap	Financing Receivable Modifications Recorded Investment FinancingReceivableModificationsRecordedInvestment	23620000	USD
CY2020Q4	us-gaap	Financing Receivable Modifications Recorded Investment FinancingReceivableModificationsRecordedInvestment	23252000	USD
CY2020Q3	us-gaap	Financing Receivable Modifications Number Of Contracts2 FinancingReceivableModificationsNumberOfContracts2	17	Contract
CY2020Q3	us-gaap	Financing Receivable Modifications Pre Modification Recorded Investment2 FinancingReceivableModificationsPreModificationRecordedInvestment2	1309000	USD
CY2021Q3	us-gaap	Loans And Leases Receivable Impaired Commitment To Lend LoansAndLeasesReceivableImpairedCommitmentToLend	75000	USD
CY2020Q4	us-gaap	Loans And Leases Receivable Impaired Commitment To Lend LoansAndLeasesReceivableImpairedCommitmentToLend	71000	USD
	us-gaap	Financing Receivable Modifications Number Of Contracts2 FinancingReceivableModificationsNumberOfContracts2	28	Contract
	us-gaap	Financing Receivable Modifications Pre Modification Recorded Investment2 FinancingReceivableModificationsPreModificationRecordedInvestment2	8140000	USD
	us-gaap	Financing Receivable Modifications Post Modification Recorded Investment2 FinancingReceivableModificationsPostModificationRecordedInvestment2	4191000	USD
	fcf	Financing Receivable Troubled Debt Restructuring Specific Reserve FinancingReceivableTroubledDebtRestructuringSpecificReserve	0	USD
	us-gaap	Financing Receivable Modifications Number Of Contracts2 FinancingReceivableModificationsNumberOfContracts2	33	Contract
	us-gaap	Financing Receivable Modifications Pre Modification Recorded Investment2 FinancingReceivableModificationsPreModificationRecordedInvestment2	1781000	USD
	us-gaap	Financing Receivable Modifications Post Modification Recorded Investment2 FinancingReceivableModificationsPostModificationRecordedInvestment2	1607000	USD
	fcf	Financing Receivable Troubled Debt Restructuring Specific Reserve FinancingReceivableTroubledDebtRestructuringSpecificReserve	489000	USD
	fcf	Loans With Modifications To Rate And Payment Due To Reamortization LoansWithModificationsToRateAndPaymentDueToReamortization	284000	USD
	fcf	Loans With Modifications To Rate And Payment Due To Reamortization LoansWithModificationsToRateAndPaymentDueToReamortization	766000	USD
CY2021Q3	us-gaap	Financing Receivable Modifications Number Of Contracts2 FinancingReceivableModificationsNumberOfContracts2	15	Contract
CY2021Q3	us-gaap	Financing Receivable Modifications Pre Modification Recorded Investment2 FinancingReceivableModificationsPreModificationRecordedInvestment2	1160000	USD
CY2021Q3	us-gaap	Financing Receivable Modifications Post Modification Recorded Investment2 FinancingReceivableModificationsPostModificationRecordedInvestment2	1144000	USD
CY2021Q3	fcf	Financing Receivable Troubled Debt Restructuring Specific Reserve FinancingReceivableTroubledDebtRestructuringSpecificReserve	0	USD
CY2020Q3	us-gaap	Financing Receivable Modifications Post Modification Recorded Investment2 FinancingReceivableModificationsPostModificationRecordedInvestment2	1165000	USD
CY2020Q3	fcf	Financing Receivable Troubled Debt Restructuring Specific Reserve FinancingReceivableTroubledDebtRestructuringSpecificReserve	489000	USD
CY2021Q3	fcf	Loans With Modifications To Rate And Payment Due To Reamortization LoansWithModificationsToRateAndPaymentDueToReamortization	86000	USD
CY2020Q3	fcf	Loans With Modifications To Rate And Payment Due To Reamortization LoansWithModificationsToRateAndPaymentDueToReamortization	694000	USD
	fcf	Default Status Of Td Rs After Number Of Days Past Due DefaultStatusOfTDRsAfterNumberOfDaysPastDue	P90D
	us-gaap	Financing Receivable Modifications Subsequent Default Number Of Contracts1 FinancingReceivableModificationsSubsequentDefaultNumberOfContracts1	0	Contract
	us-gaap	Financing Receivable Modifications Subsequent Default Recorded Investment1 FinancingReceivableModificationsSubsequentDefaultRecordedInvestment1	0	USD
	us-gaap	Financing Receivable Modifications Subsequent Default Number Of Contracts1 FinancingReceivableModificationsSubsequentDefaultNumberOfContracts1	4	Contract
	us-gaap	Financing Receivable Modifications Subsequent Default Recorded Investment1 FinancingReceivableModificationsSubsequentDefaultRecordedInvestment1	240000	USD
CY2021Q3	us-gaap	Financing Receivable Modifications Subsequent Default Number Of Contracts1 FinancingReceivableModificationsSubsequentDefaultNumberOfContracts1	0	Contract
CY2021Q3	us-gaap	Financing Receivable Modifications Subsequent Default Recorded Investment1 FinancingReceivableModificationsSubsequentDefaultRecordedInvestment1	0	USD
CY2020Q3	us-gaap	Financing Receivable Modifications Subsequent Default Number Of Contracts1 FinancingReceivableModificationsSubsequentDefaultNumberOfContracts1	3	Contract
CY2020Q3	us-gaap	Financing Receivable Modifications Subsequent Default Recorded Investment1 FinancingReceivableModificationsSubsequentDefaultRecordedInvestment1	190000	USD
CY2020Q4	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	101309000	USD
	us-gaap	Financing Receivable Allowance For Credit Losses Write Offs FinancingReceivableAllowanceForCreditLossesWriteOffs	11510000	USD
	us-gaap	Financing Receivable Allowance For Credit Losses Recovery FinancingReceivableAllowanceForCreditLossesRecovery	2036000	USD
	us-gaap	Financing Receivable Allowance For Credit Losses Period Increase Decrease FinancingReceivableAllowanceForCreditLossesPeriodIncreaseDecrease	2350000	USD
CY2021Q3	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	94185000	USD
CY2021Q3	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	94185000	USD
CY2021Q3	us-gaap	Financing Receivable Allowance For Credit Losses Individually Evaluated For Impairment1 FinancingReceivableAllowanceForCreditLossesIndividuallyEvaluatedForImpairment1	980000	USD
CY2021Q3	us-gaap	Financing Receivable Allowance For Credit Losses Collectively Evaluated For Impairment FinancingReceivableAllowanceForCreditLossesCollectivelyEvaluatedForImpairment	93205000	USD
CY2021Q3	us-gaap	Loans And Leases Receivable Net Of Deferred Income LoansAndLeasesReceivableNetOfDeferredIncome	6732580000	USD
CY2021Q3	us-gaap	Financing Receivable Individually Evaluated For Impairment FinancingReceivableIndividuallyEvaluatedForImpairment	26148000	USD
CY2021Q3	us-gaap	Financing Receivable Collectively Evaluated For Impairment FinancingReceivableCollectivelyEvaluatedForImpairment	6706432000	USD
CY2020Q3	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	88307000	USD
CY2020Q3	us-gaap	Financing Receivable Allowance For Credit Losses Individually Evaluated For Impairment1 FinancingReceivableAllowanceForCreditLossesIndividuallyEvaluatedForImpairment1	7418000	USD
CY2020Q3	us-gaap	Financing Receivable Allowance For Credit Losses Collectively Evaluated For Impairment FinancingReceivableAllowanceForCreditLossesCollectivelyEvaluatedForImpairment	80889000	USD
CY2020Q3	us-gaap	Loans And Leases Receivable Net Of Deferred Income LoansAndLeasesReceivableNetOfDeferredIncome	6949716000	USD
CY2020Q3	us-gaap	Financing Receivable Individually Evaluated For Impairment FinancingReceivableIndividuallyEvaluatedForImpairment	36969000	USD
CY2020Q3	us-gaap	Financing Receivable Collectively Evaluated For Impairment FinancingReceivableCollectivelyEvaluatedForImpairment	6912747000	USD
CY2021Q2	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	97038000	USD
CY2021Q3	us-gaap	Financing Receivable Allowance For Credit Losses Write Offs FinancingReceivableAllowanceForCreditLossesWriteOffs	2906000	USD
CY2021Q3	us-gaap	Financing Receivable Allowance For Credit Losses Recovery FinancingReceivableAllowanceForCreditLossesRecovery	629000	USD
CY2021Q3	us-gaap	Financing Receivable Allowance For Credit Losses Period Increase Decrease FinancingReceivableAllowanceForCreditLossesPeriodIncreaseDecrease	-576000	USD
CY2021Q3	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	94185000	USD
CY2020Q3	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	88307000	USD
CY2021Q3	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	40245000	USD
CY2020Q4	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	42617000	USD
CY2021Q3	us-gaap	Operating Lease Liability OperatingLeaseLiability	44473000	USD
CY2020Q4	us-gaap	Operating Lease Liability OperatingLeaseLiability	46819000	USD
CY2021Q3	us-gaap	Lease And Rental Expense LeaseAndRentalExpense	1202000	USD
CY2020Q3	us-gaap	Lease And Rental Expense LeaseAndRentalExpense	1545000	USD
	us-gaap	Lease And Rental Expense LeaseAndRentalExpense	3603000	USD
	us-gaap	Lease And Rental Expense LeaseAndRentalExpense	4281000	USD
CY2021Q3	us-gaap	Operating Lease Weighted Average Remaining Lease Term1 OperatingLeaseWeightedAverageRemainingLeaseTerm1	P14Y4M9D
CY2020Q3	us-gaap	Operating Lease Weighted Average Remaining Lease Term1 OperatingLeaseWeightedAverageRemainingLeaseTerm1	P15Y1M6D
CY2021Q3	us-gaap	Operating Lease Weighted Average Discount Rate Percent OperatingLeaseWeightedAverageDiscountRatePercent	0.0334
CY2020Q3	us-gaap	Operating Lease Weighted Average Discount Rate Percent OperatingLeaseWeightedAverageDiscountRatePercent	0.0342
	us-gaap	Operating Lease Cost OperatingLeaseCost	1190000	USD
	us-gaap	Operating Lease Cost OperatingLeaseCost	2007000	USD
CY2021Q3	us-gaap	Operating Leases Future Minimum Payments Due Current OperatingLeasesFutureMinimumPaymentsDueCurrent	4623000	USD
CY2021Q3	us-gaap	Operating Leases Future Minimum Payments Due In Two Years OperatingLeasesFutureMinimumPaymentsDueInTwoYears	4591000	USD
CY2021Q3	us-gaap	Operating Leases Future Minimum Payments Due In Three Years OperatingLeasesFutureMinimumPaymentsDueInThreeYears	4428000	USD
CY2021Q3	us-gaap	Operating Leases Future Minimum Payments Due In Four Years OperatingLeasesFutureMinimumPaymentsDueInFourYears	4306000	USD
CY2021Q3	us-gaap	Operating Leases Future Minimum Payments Due In Five Years OperatingLeasesFutureMinimumPaymentsDueInFiveYears	3849000	USD
CY2021Q3	us-gaap	Operating Leases Future Minimum Payments Due Thereafter OperatingLeasesFutureMinimumPaymentsDueThereafter	35364000	USD
CY2021Q3	us-gaap	Operating Leases Future Minimum Payments Due OperatingLeasesFutureMinimumPaymentsDue	57161000	USD
CY2021Q3	us-gaap	Lessee Operating Lease Liability Undiscounted Excess Amount LesseeOperatingLeaseLiabilityUndiscountedExcessAmount	12688000	USD
CY2021Q3	us-gaap	Operating Lease Liability OperatingLeaseLiability	44473000	USD
CY2020Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	0	USD
CY2021Q3	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	0	USD
CY2021Q3	us-gaap	Available For Sale Securities AvailableForSaleSecurities	1124956000	USD
CY2021Q3	us-gaap	Other Investments OtherInvestments	12719000	USD
CY2021Q3	us-gaap	Loans Held For Sale Fair Value Disclosure LoansHeldForSaleFairValueDisclosure	19925000	USD
CY2021Q3	us-gaap	Other Assets Fair Value Disclosure OtherAssetsFairValueDisclosure	49244000	USD
CY2021Q3	us-gaap	Assets Fair Value Disclosure AssetsFairValueDisclosure	1206844000	USD
CY2021Q3	us-gaap	Other Liabilities Fair Value Disclosure OtherLiabilitiesFairValueDisclosure	38743000	USD
CY2021Q3	us-gaap	Liabilities Fair Value Disclosure LiabilitiesFairValueDisclosure	38743000	USD
CY2020Q4	us-gaap	Available For Sale Securities AvailableForSaleSecurities	831223000	USD
CY2020Q4	us-gaap	Other Investments OtherInvestments	12227000	USD
CY2020Q4	us-gaap	Loans Held For Sale Fair Value Disclosure LoansHeldForSaleFairValueDisclosure	33436000	USD
CY2020Q4	us-gaap	Property Plant And Equipment Fair Value Disclosure PropertyPlantAndEquipmentFairValueDisclosure	442000	USD
CY2020Q4	us-gaap	Other Assets Fair Value Disclosure OtherAssetsFairValueDisclosure	60981000	USD
CY2020Q4	us-gaap	Assets Fair Value Disclosure AssetsFairValueDisclosure	938309000	USD
CY2020Q4	us-gaap	Other Liabilities Fair Value Disclosure OtherLiabilitiesFairValueDisclosure	61308000	USD
CY2020Q4	us-gaap	Liabilities Fair Value Disclosure LiabilitiesFairValueDisclosure	61308000	USD
CY2020Q4	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Value FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetValue	8290000	USD
	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Gain Loss Included In Earnings1 FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetGainLossIncludedInEarnings1	0	USD
	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Gain Loss Included In Other Comprehensive Income Loss FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetGainLossIncludedInOtherComprehensiveIncomeLoss	0	USD
	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Purchases FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetPurchases	8113000	USD
	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Issues FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetIssues	0	USD
	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Sales FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetSales	0	USD
	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Settlements FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetSettlements	120000	USD
	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Transfers Out Of Level3 FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetTransfersOutOfLevel3	0	USD
	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Transfers Into Level3 FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetTransfersIntoLevel3	0	USD
CY2021Q3	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Value FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetValue	16283000	USD
CY2019Q4	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Value FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetValue	7465000	USD
	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Gain Loss Included In Earnings1 FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetGainLossIncludedInEarnings1	0	USD
	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Gain Loss Included In Other Comprehensive Income Loss FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetGainLossIncludedInOtherComprehensiveIncomeLoss	0	USD
	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Purchases FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetPurchases	751000	USD
	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Issues FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetIssues	0	USD
	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Sales FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetSales	0	USD
	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Settlements FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetSettlements	0	USD
	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Transfers Out Of Level3 FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetTransfersOutOfLevel3	0	USD
	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Transfers Into Level3 FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetTransfersIntoLevel3	0	USD
CY2020Q3	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Value FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetValue	8216000	USD
CY2021Q2	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Value FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetValue	9118000	USD
CY2021Q3	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Gain Loss Included In Earnings1 FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetGainLossIncludedInEarnings1	0	USD
CY2021Q3	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Gain Loss Included In Other Comprehensive Income Loss FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetGainLossIncludedInOtherComprehensiveIncomeLoss	0	USD
CY2021Q3	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Purchases FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetPurchases	7194000	USD
CY2021Q3	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Issues FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetIssues	0	USD
CY2021Q3	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Sales FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetSales	0	USD
CY2021Q3	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Settlements FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetSettlements	29000	USD
CY2021Q3	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Transfers Out Of Level3 FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetTransfersOutOfLevel3	0	USD
CY2021Q3	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Transfers Into Level3 FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetTransfersIntoLevel3	0	USD
CY2021Q3	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Value FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetValue	16283000	USD
CY2020Q2	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Value FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetValue	8076000	USD
CY2020Q3	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Gain Loss Included In Earnings1 FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetGainLossIncludedInEarnings1	0	USD
CY2020Q3	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Gain Loss Included In Other Comprehensive Income Loss FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetGainLossIncludedInOtherComprehensiveIncomeLoss	0	USD
CY2020Q3	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Purchases FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetPurchases	140000	USD
CY2020Q3	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Issues FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetIssues	0	USD
CY2020Q3	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Sales FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetSales	0	USD
CY2020Q3	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Settlements FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetSettlements	0	USD
CY2020Q3	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Transfers Out Of Level3 FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetTransfersOutOfLevel3	0	USD
CY2020Q3	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Transfers Into Level3 FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetTransfersIntoLevel3	0	USD
CY2020Q3	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Value FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetValue	8216000	USD
CY2021Q3	fcf	Fair Value Measurement Of Assets On Nonrecurring Basis Net Losses On Impaired Loans FairValueMeasurementOfAssetsOnNonrecurringBasisNetLossesOnImpairedLoans	745000	USD
CY2020Q3	fcf	Fair Value Measurement Of Assets On Nonrecurring Basis Net Losses On Impaired Loans FairValueMeasurementOfAssetsOnNonrecurringBasisNetLossesOnImpairedLoans	3695000	USD
	fcf	Fair Value Measurement Of Assets On Nonrecurring Basis Net Losses On Impaired Loans FairValueMeasurementOfAssetsOnNonrecurringBasisNetLossesOnImpairedLoans	2537000	USD
	fcf	Fair Value Measurement Of Assets On Nonrecurring Basis Net Losses On Impaired Loans FairValueMeasurementOfAssetsOnNonrecurringBasisNetLossesOnImpairedLoans	9940000	USD
CY2021Q3	fcf	Fair Value Measurement Of Assets On Nonrecurring Basis Net Losses On Other Real Estate Owned FairValueMeasurementOfAssetsOnNonrecurringBasisNetLossesOnOtherRealEstateOwned	0	USD
CY2020Q3	fcf	Fair Value Measurement Of Assets On Nonrecurring Basis Net Losses On Other Real Estate Owned FairValueMeasurementOfAssetsOnNonrecurringBasisNetLossesOnOtherRealEstateOwned	4000	USD
	fcf	Fair Value Measurement Of Assets On Nonrecurring Basis Net Losses On Other Real Estate Owned FairValueMeasurementOfAssetsOnNonrecurringBasisNetLossesOnOtherRealEstateOwned	0	USD
	fcf	Fair Value Measurement Of Assets On Nonrecurring Basis Net Losses On Other Real Estate Owned FairValueMeasurementOfAssetsOnNonrecurringBasisNetLossesOnOtherRealEstateOwned	4000	USD
CY2021Q3	fcf	Fair Value Measurement Of Assets On Nonrecurring Basis Net Loss FairValueMeasurementOfAssetsOnNonrecurringBasisNetLoss	745000	USD
CY2020Q3	fcf	Fair Value Measurement Of Assets On Nonrecurring Basis Net Loss FairValueMeasurementOfAssetsOnNonrecurringBasisNetLoss	3699000	USD
	fcf	Fair Value Measurement Of Assets On Nonrecurring Basis Net Loss FairValueMeasurementOfAssetsOnNonrecurringBasisNetLoss	2537000	USD
	fcf	Fair Value Measurement Of Assets On Nonrecurring Basis Net Loss FairValueMeasurementOfAssetsOnNonrecurringBasisNetLoss	9944000	USD
CY2021Q3	fcf	Impaired Loans Fair Value Non Collection ImpairedLoansFairValueNonCollection	250000	USD
CY2021Q3	fcf	Updated Appraisal Requirement Floor UpdatedAppraisalRequirementFloor	250000	USD
CY2021Q3	fcf	Updated Appraisal Requirement Floor UpdatedAppraisalRequirementFloor	250000	USD
CY2021Q3	us-gaap	Real Estate Acquired Through Foreclosure RealEstateAcquiredThroughForeclosure	500000	USD
CY2021Q3	us-gaap	Fair Value Concentration Of Risk Commitments FairValueConcentrationOfRiskCommitments	100000	USD
CY2020Q4	us-gaap	Fair Value Concentration Of Risk Commitments FairValueConcentrationOfRiskCommitments	100000	USD
CY2021Q3	us-gaap	Derivative Instruments Not Designated As Hedging Instruments Gain Loss Net DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsGainLossNet	-202000	USD
CY2020Q3	us-gaap	Derivative Instruments Not Designated As Hedging Instruments Gain Loss Net DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsGainLossNet	142000	USD
	us-gaap	Derivative Instruments Not Designated As Hedging Instruments Gain Loss Net DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsGainLossNet	106000	USD
	us-gaap	Derivative Instruments Not Designated As Hedging Instruments Gain Loss Net DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsGainLossNet	-611000	USD
CY2021Q3	us-gaap	Goodwill Goodwill	303300000	USD
CY2020Q4	us-gaap	Goodwill Goodwill	303300000	USD
	us-gaap	Goodwill Impairment Loss GoodwillImpairmentLoss	0	USD
	us-gaap	Goodwill Impairment Loss GoodwillImpairmentLoss	0	USD
CY2021Q3	us-gaap	Subordinated Debt SubordinatedDebt	170734000	USD
CY2020Q4	us-gaap	Subordinated Debt SubordinatedDebt	170612000	USD
	fcf	Incentive Revenue IncentiveRevenue	300000	USD
	us-gaap	Brokerage Commissions Revenue BrokerageCommissionsRevenue	2200000	USD
	us-gaap	Brokerage Commissions Revenue BrokerageCommissionsRevenue	800000	USD
CY2021Q3	fcf	Feesand Commissionson Trustand Fiduciary Accounts FeesandCommissionsonTrustandFiduciaryAccounts	3118000	USD
CY2020Q3	fcf	Feesand Commissionson Trustand Fiduciary Accounts FeesandCommissionsonTrustandFiduciaryAccounts	2554000	USD
CY2021Q3	fcf	Feesand Commissionson Depositor Accounts FeesandCommissionsonDepositorAccounts	4770000	USD
CY2020Q3	fcf	Feesand Commissionson Depositor Accounts FeesandCommissionsonDepositorAccounts	4035000	USD
CY2021Q3	us-gaap	Insurance Commissions And Fees InsuranceCommissionsAndFees	2218000	USD
CY2020Q3	us-gaap	Insurance Commissions And Fees InsuranceCommissionsAndFees	2156000	USD
CY2021Q3	fcf	Feesand Commissionson Debit Cards FeesandCommissionsonDebitCards	7052000	USD
CY2020Q3	fcf	Feesand Commissionson Debit Cards FeesandCommissionsonDebitCards	6441000	USD
CY2021Q3	us-gaap	Noninterest Income NoninterestIncome	27245000	USD
CY2020Q3	us-gaap	Noninterest Income NoninterestIncome	26769000	USD
	us-gaap	Noninterest Income NoninterestIncome	80686000	USD
	us-gaap	Noninterest Income NoninterestIncome	67854000	USD
CY2021Q3	us-gaap	Stock Repurchase Program Authorized Amount1 StockRepurchaseProgramAuthorizedAmount1	25000000	USD
CY2021Q3	fcf	Loan Pay Off LoanPayOff	6900000	USD
CY2021Q3	fcf	Specific Reserve Related To Loan Pay Off SpecificReserveRelatedToLoanPayOff	300000	USD

Files In Submission

Name	View Source	Status
0000712537-21-000029-index-headers.html	Edgar Link	pending
0000712537-21-000029-index.html	Edgar Link	pending
0000712537-21-000029.txt	Edgar Link	pending
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fcf-ex311_20210930x10q.htm	Edgar Link	pending
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fcf-ex321_20210930x10q.htm	Edgar Link	pending
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report.css	Edgar Link	pending
Show.js	Edgar Link	pending

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$FCF
FIRST COMMONWEALTH FINANCIAL CORP /PA/ Stock $fcf

2021 Q4 Form 10-Q Financial Statement

#000071253721000029 Filed on November 08, 2021

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$FCF FIRST COMMONWEALTH FINANCIAL CORP /PA/ Stock $fcf

2021 Q4 Form 10-Q Financial Statement

#000071253721000029 Filed on November 08, 2021

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$FCF
FIRST COMMONWEALTH FINANCIAL CORP /PA/ Stock $fcf