$CCNE
CNB FINANCIAL CORP/PA Stock $ccne

$ccne Overview Financials Valuation SEC Filings Company Website

2019 Form 10-K Financial Statement

#000073677220000011 Filed on March 05, 2020

Income Statement

Concept	2019	2018 Q4	2018 Q3
Revenue	$155.7M	$36.34M	$34.04M
YoY Change	18.09%	26.64%	21.27%
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	$5.963M	$1.150M	$1.200M
YoY Change	23.95%	-9.45%	-6.98%
% of Gross Profit
Operating Expenses
YoY Change
Operating Profit
YoY Change
Interest Expense	$39.53M		$7.162M
YoY Change	46.68%		57.34%
% of Operating Profit
Other Income/Expense, Net
YoY Change
Pretax Income	$48.64M	$11.10M	$10.92M
YoY Change	20.91%	28.32%	14.59%
Income Tax	$8.560M	$2.160M	$1.686M
% Of Pretax Income	17.6%	19.46%	15.44%
Net Earnings	$40.08M	$8.945M	$9.236M
YoY Change	18.87%	159.2%	27.46%
Net Earnings / Revenue	25.74%	24.61%	27.13%
Basic Earnings Per Share	$2.63	$0.59	$0.60
Diluted Earnings Per Share	$2.63	$0.59	$0.60
COMMON SHARES
Basic Shares Outstanding	15.16M shares	15.25M shares	15.23M shares
Diluted Shares Outstanding	15.16M shares		15.23M shares

Balance Sheet

Concept	2019	2018 Q4	2018 Q3
SHORT-TERM ASSETS
Cash & Short-Term Investments
YoY Change
Cash & Equivalents		$45.56M	$36.50M
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	$73.30M	$49.92M	$49.30M
YoY Change	46.89%	-1.57%	-1.72%
Goodwill		$38.73M	$38.73M
YoY Change		0.0%	0.0%
Intangibles
YoY Change
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	$3.764B	$3.222B	$3.129B
YoY Change	16.83%	16.35%	14.0%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable	$37.40M	$32.00M	$29.50M
YoY Change	16.88%	10.73%	9.26%
Accrued Expenses	$19.40M
YoY Change
Deferred Revenue
YoY Change
Short-Term Debt		$0.00	$2.211M
YoY Change		-100.0%	-98.44%
Long-Term Debt Due
YoY Change
Total Short-Term Liabilities	$56.80M	$32.00M	$29.50M
YoY Change	77.5%	10.73%	9.26%
LONG-TERM LIABILITIES
Long-Term Debt	$71.20M	$70.60M	$70.60M
YoY Change	0.85%	0.0%	0.0%
Other Long-Term Liabilities	$500.0K	$200.0K	$0.00
YoY Change	150.0%	0.0%	-100.0%
Total Long-Term Liabilities	$71.70M	$70.80M	$70.60M
YoY Change	1.27%	0.0%	-0.28%
TOTAL LIABILITIES
Total Short-Term Liabilities	$56.80M	$32.00M	$29.50M
Total Long-Term Liabilities	$71.70M	$70.80M	$70.60M
Total Liabilities	$3.459B	$2.959B	$2.875B
YoY Change	16.9%	17.18%	14.97%
SHAREHOLDERS EQUITY
Retained Earnings		$171.8M	$165.4M
YoY Change		15.83%	12.43%
Common Stock		$97.60M	$97.33M
YoY Change		0.58%	0.65%
Preferred Stock
YoY Change
Treasury Stock (at cost)		$2.556M	$608.0K
YoY Change		135.14%	11.76%
Treasury Stock Shares		101.1K shares	22.95K shares
Shareholders Equity	$305.0M	$262.8M	$254.4M
YoY Change
Total Liabilities & Shareholders Equity	$3.764B	$3.222B	$3.129B
YoY Change	16.83%	16.35%	14.0%

Cashflow Statement

Concept	2019	2018 Q4	2018 Q3
OPERATING ACTIVITIES
Net Income	$40.08M	$8.945M	$9.236M
YoY Change	18.87%	159.2%	27.46%
Depreciation, Depletion And Amortization	$5.963M	$1.150M	$1.200M
YoY Change	23.95%	-9.45%	-6.98%
Cash From Operating Activities	$52.04M	$17.37M	$9.550M
YoY Change	16.02%	60.39%	15.76%
INVESTING ACTIVITIES
Capital Expenditures	$9.045M	-$1.700M	-$470.0K
YoY Change	194.82%	13.33%	-34.72%
Acquisitions
YoY Change
Other Investing Activities	-$359.7M	-$83.12M	-$127.7M
YoY Change	-20.0%	186.23%	95.28%
Cash From Investing Activities	-$368.7M	-$84.82M	-$128.2M
YoY Change	-18.54%	177.83%	93.86%
FINANCING ACTIVITIES
Cash Dividend Paid	$10.36M
YoY Change	1.18%
Common Stock Issuance & Retirement, Net	$1.423M
YoY Change
Debt Paid & Issued, Net	$47.56M
YoY Change	70.93%
Cash From Financing Activities	$464.1M	76.51M	112.8M
YoY Change	11.02%	294.99%	86.47%
NET CHANGE
Cash From Operating Activities	$52.04M	17.37M	9.550M
Cash From Investing Activities	-$368.7M	-84.82M	-128.2M
Cash From Financing Activities	$464.1M	76.51M	112.8M
Net Change In Cash	$147.4M	9.060M	-5.820M
YoY Change	1342.66%	-2845.45%	-321.29%
FREE CASH FLOW
Cash From Operating Activities	$52.04M	$17.37M	$9.550M
Capital Expenditures	$9.045M	-$1.700M	-$470.0K
Free Cash Flow	$43.00M	$19.07M	$10.02M
YoY Change	2.9%	54.66%	11.71%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
CY2018	ccne	Average Amount Of Non Interest Bearing Reserve With Federal Reserve Bank AverageAmountOfNonInterestBearingReserveWithFederalReserveBank	50000	USD
CY2018Q4	ccne	Number Of Securities Holdings NumberOfSecuritiesHoldings	0	security
CY2018	ccne	Number Of Unsecured Lines Of Credit Issued NumberOfUnsecuredLinesOfCreditIssued	1	line_of_credit
CY2018Q4	ccne	Shareholders Equity Percentage ShareholdersEquityPercentage	0.10
CY2019	ccne	Stock Issued During Period Shares Performance Based Restricted Stock Award StockIssuedDuringPeriodSharesPerformanceBasedRestrictedStockAward	798	shares
CY2017	ccne	Stock Issued During Period Shares Restricted Stock Award Grants StockIssuedDuringPeriodSharesRestrictedStockAwardGrants	39673	shares
CY2018	ccne	Stock Issued During Period Shares Restricted Stock Award Grants StockIssuedDuringPeriodSharesRestrictedStockAwardGrants	40108	shares
CY2019	ccne	Stock Issued During Period Shares Restricted Stock Award Grants StockIssuedDuringPeriodSharesRestrictedStockAwardGrants	40978	shares
CY2018Q4	ccne	Troubled Debt Restructuring Loan Principal Balance Forgiven TroubledDebtRestructuringLoanPrincipalBalanceForgiven	0	USD
CY2019	dei	Amendment Flag AmendmentFlag	false
CY2019	dei	Current Fiscal Year End Date CurrentFiscalYearEndDate	--12-31
CY2019	dei	Document Fiscal Period Focus DocumentFiscalPeriodFocus	FY
CY2019	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2019
CY2019	dei	Entity Central Index Key EntityCentralIndexKey	0000736772
CY2019	dei	Entity Registrant Name EntityRegistrantName	CNB FINANCIAL CORP/PA
CY2019	dei	Security Exchange Name SecurityExchangeName	NASDAQ
CY2019	dei	Trading Symbol TradingSymbol	CCNE
CY2017	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	0	shares
CY2018	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	0	shares
CY2017	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.66
CY2018	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.67
CY2019	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.68
CY2018Q4	us-gaap	Common Stock No Par Value CommonStockNoParValue	0
CY2019Q4	us-gaap	Common Stock No Par Value CommonStockNoParValue	0
CY2018Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	50000000	shares
CY2019Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	50000000	shares
CY2018Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	15308378	shares
CY2019Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	15360946	shares
CY2018Q4	us-gaap	Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized Stock Options EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedStockOptions	0	USD
CY2018Q4	us-gaap	Fair Value Hedges At Fair Value Net FairValueHedgesAtFairValueNet	0	USD
CY2018Q4	us-gaap	Income Tax Examination Penalties And Interest Accrued IncomeTaxExaminationPenaltiesAndInterestAccrued	0	USD
CY2017	us-gaap	Income Tax Examination Penalties And Interest Expense IncomeTaxExaminationPenaltiesAndInterestExpense	0	USD
CY2018	us-gaap	Income Tax Examination Penalties And Interest Expense IncomeTaxExaminationPenaltiesAndInterestExpense	0	USD
CY2018Q4	us-gaap	Line Of Credit LineOfCredit	0	USD
CY2018Q4	us-gaap	Line Of Credit Facility Maximum Borrowing Capacity LineOfCreditFacilityMaximumBorrowingCapacity	10000000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Before Reclassification And Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAndTax	63000	USD
CY2017	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesBeforeTax	1543000	USD
CY2018	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesBeforeTax	0	USD
CY2019	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesBeforeTax	148000	USD
CY2017	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci On Derivatives Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivativesTax	288000	USD
CY2018	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci On Derivatives Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivativesTax	164000	USD
CY2017	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Transition Asset Obligation Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetTransitionAssetObligationBeforeTax	192000	USD
CY2018	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Transition Asset Obligation Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetTransitionAssetObligationBeforeTax	84000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Transition Asset Obligation Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetTransitionAssetObligationBeforeTax	23000	USD
CY2017	us-gaap	Reclassification From Aoci Current Period Tax ReclassificationFromAociCurrentPeriodTax	-372000	USD
CY2018	us-gaap	Reclassification From Aoci Current Period Tax ReclassificationFromAociCurrentPeriodTax	52000	USD
CY2019	us-gaap	Reclassification From Aoci Current Period Tax ReclassificationFromAociCurrentPeriodTax	-13000	USD
CY2017	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Gross ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross	0	shares
CY2018	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Gross ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross	0	shares
CY2017	us-gaap	Stock Issued During Period Shares New Issues StockIssuedDuringPeriodSharesNewIssues	834896	shares
CY2019	us-gaap	Stock Issued During Period Shares New Issues StockIssuedDuringPeriodSharesNewIssues	52568	shares
CY2017	us-gaap	Stock Issued During Period Shares Restricted Stock Award Forfeited StockIssuedDuringPeriodSharesRestrictedStockAwardForfeited	2482	shares
CY2018	us-gaap	Stock Issued During Period Shares Restricted Stock Award Forfeited StockIssuedDuringPeriodSharesRestrictedStockAwardForfeited	361	shares
CY2019	us-gaap	Stock Issued During Period Shares Restricted Stock Award Forfeited StockIssuedDuringPeriodSharesRestrictedStockAwardForfeited	2699	shares
CY2018Q4	us-gaap	Treasury Stock Shares TreasuryStockShares	101097	shares
CY2019Q4	us-gaap	Treasury Stock Shares TreasuryStockShares	112961	shares
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CY2019	us-gaap	Treasury Stock Shares Acquired TreasuryStockSharesAcquired	40000	shares
CY2018Q4	us-gaap	Unrecognized Tax Benefits That Would Impact Effective Tax Rate UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate	0	USD
CY2017Q4	us-gaap	Valuation Allowance For Impairment Of Recognized Servicing Assets Balance ValuationAllowanceForImpairmentOfRecognizedServicingAssetsBalance	0	USD
CY2018Q4	us-gaap	Valuation Allowance For Impairment Of Recognized Servicing Assets Balance ValuationAllowanceForImpairmentOfRecognizedServicingAssetsBalance	0	USD
CY2019	dei	Document Type DocumentType	10-K
CY2019	dei	Document Annual Report DocumentAnnualReport	true
CY2019	dei	Document Period End Date DocumentPeriodEndDate	2019-12-31
CY2019	dei	Document Transition Report DocumentTransitionReport	false
CY2019	dei	Entity File Number EntityFileNumber	000-13396
CY2019	dei	Entity Incorporation State Country Code EntityIncorporationStateCountryCode	PA
CY2019	dei	Entity Tax Identification Number EntityTaxIdentificationNumber	25-1450605
CY2019	dei	Entity Address Address Line1 EntityAddressAddressLine1	1 South Second Street
CY2019	dei	Entity Address Address Line2 EntityAddressAddressLine2	P.O. Box 42
CY2019	dei	Entity Address City Or Town EntityAddressCityOrTown	Clearfield
CY2019	dei	Entity Address State Or Province EntityAddressStateOrProvince	PA
CY2019	dei	Entity Address Postal Zip Code EntityAddressPostalZipCode	16830
CY2019	dei	City Area Code CityAreaCode	814
CY2019	dei	Local Phone Number LocalPhoneNumber	765-9621
CY2019	dei	Security12b Title Security12bTitle	Common Stock, no par value
CY2019	dei	Trading Symbol TradingSymbol	CCNE
CY2019	dei	Entity Well Known Seasoned Issuer EntityWellKnownSeasonedIssuer	No
CY2019	dei	Entity Voluntary Filers EntityVoluntaryFilers	No
CY2019	dei	Entity Current Reporting Status EntityCurrentReportingStatus	Yes
CY2019	dei	Entity Interactive Data Current EntityInteractiveDataCurrent	Yes
CY2019	dei	Entity Filer Category EntityFilerCategory	Accelerated Filer
CY2019	dei	Entity Small Business EntitySmallBusiness	false
CY2019	dei	Entity Emerging Growth Company EntityEmergingGrowthCompany	false
CY2019	dei	Entity Shell Company EntityShellCompany	false
CY2019Q2	dei	Entity Public Float EntityPublicFloat	406700054	USD
CY2020Q1	dei	Entity Common Stock Shares Outstanding EntityCommonStockSharesOutstanding	15397117	shares
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CY2018Q4	us-gaap	Goodwill Goodwill	38730000	USD
CY2019Q4	ccne	Core Deposit Intangible CoreDepositIntangible	160000	USD
CY2018Q4	ccne	Core Deposit Intangible CoreDepositIntangible	727000	USD
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CY2019	us-gaap	Interest Expense Deposits InterestExpenseDeposits	30202000	USD
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CY2019	us-gaap	Interest Expense Other InterestExpenseOther	3979000	USD
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CY2018	us-gaap	Interest Expense InterestExpense	26950000	USD
CY2017	us-gaap	Interest Expense InterestExpense	17365000	USD
CY2019	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	116198000	USD
CY2018	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	104920000	USD
CY2017	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	91509000	USD
CY2019	us-gaap	Provision For Loan And Lease Losses ProvisionForLoanAndLeaseLosses	6024000	USD
CY2018	us-gaap	Provision For Loan And Lease Losses ProvisionForLoanAndLeaseLosses	6072000	USD
CY2017	us-gaap	Provision For Loan And Lease Losses ProvisionForLoanAndLeaseLosses	6655000	USD
CY2019	us-gaap	Interest Income Expense After Provision For Loan Loss InterestIncomeExpenseAfterProvisionForLoanLoss	110174000	USD
CY2018	us-gaap	Interest Income Expense After Provision For Loan Loss InterestIncomeExpenseAfterProvisionForLoanLoss	98848000	USD
CY2017	us-gaap	Interest Income Expense After Provision For Loan Loss InterestIncomeExpenseAfterProvisionForLoanLoss	84854000	USD
CY2019	ccne	Service Charges On Deposit Accounts ServiceChargesOnDepositAccounts	6402000	USD
CY2018	ccne	Service Charges On Deposit Accounts ServiceChargesOnDepositAccounts	5759000	USD
CY2017	ccne	Service Charges On Deposit Accounts ServiceChargesOnDepositAccounts	4809000	USD
CY2019	ccne	Other Service Chargesand Fees OtherServiceChargesandFees	2930000	USD
CY2018	ccne	Other Service Chargesand Fees OtherServiceChargesandFees	2833000	USD
CY2017	ccne	Other Service Chargesand Fees OtherServiceChargesandFees	2454000	USD
CY2019	us-gaap	Investment Banking Advisory Brokerage And Underwriting Fees And Commissions InvestmentBankingAdvisoryBrokerageAndUnderwritingFeesAndCommissions	4627000	USD
CY2018	us-gaap	Investment Banking Advisory Brokerage And Underwriting Fees And Commissions InvestmentBankingAdvisoryBrokerageAndUnderwritingFeesAndCommissions	4172000	USD
CY2017	us-gaap	Investment Banking Advisory Brokerage And Underwriting Fees And Commissions InvestmentBankingAdvisoryBrokerageAndUnderwritingFeesAndCommissions	3724000	USD
CY2019	us-gaap	Debt Securities Available For Sale Realized Gain Loss DebtSecuritiesAvailableForSaleRealizedGainLoss	148000	USD
CY2018	us-gaap	Debt Securities Available For Sale Realized Gain Loss DebtSecuritiesAvailableForSaleRealizedGainLoss	0	USD
CY2017	us-gaap	Debt Securities Available For Sale Realized Gain Loss DebtSecuritiesAvailableForSaleRealizedGainLoss	1543000	USD
CY2019	us-gaap	Debt Securities Trading Realized Gain DebtSecuritiesTradingRealizedGain	16000	USD
CY2018	us-gaap	Debt Securities Trading Realized Gain DebtSecuritiesTradingRealizedGain	151000	USD
CY2017	us-gaap	Debt Securities Trading Realized Gain DebtSecuritiesTradingRealizedGain	93000	USD
CY2019	us-gaap	Debt Securities Trading Unrealized Gain Loss DebtSecuritiesTradingUnrealizedGainLoss	1872000	USD
CY2018	us-gaap	Debt Securities Trading Unrealized Gain Loss DebtSecuritiesTradingUnrealizedGainLoss	-602000	USD
CY2017	us-gaap	Debt Securities Trading Unrealized Gain Loss DebtSecuritiesTradingUnrealizedGainLoss	788000	USD
CY2019	ccne	Gain Losson Visa Class B Shares GainLossonVisaClassBShares	463000	USD
CY2018	ccne	Gain Losson Visa Class B Shares GainLossonVisaClassBShares	0	USD
CY2017	ccne	Gain Losson Visa Class B Shares GainLossonVisaClassBShares	0	USD
CY2019	ccne	Mortgage Banking MortgageBanking	1412000	USD
CY2018	ccne	Mortgage Banking MortgageBanking	1019000	USD
CY2017	ccne	Mortgage Banking MortgageBanking	906000	USD
CY2019	us-gaap	Bank Owned Life Insurance Income BankOwnedLifeInsuranceIncome	1317000	USD
CY2018	us-gaap	Bank Owned Life Insurance Income BankOwnedLifeInsuranceIncome	1408000	USD
CY2017	us-gaap	Bank Owned Life Insurance Income BankOwnedLifeInsuranceIncome	1659000	USD
CY2019	ccne	Card Processing And Interchange Income CardProcessingAndInterchangeIncome	4641000	USD
CY2018	ccne	Card Processing And Interchange Income CardProcessingAndInterchangeIncome	4261000	USD
CY2017	ccne	Card Processing And Interchange Income CardProcessingAndInterchangeIncome	3763000	USD
CY2019	us-gaap	Gain Loss On Sale Of Business GainLossOnSaleOfBusiness	0	USD
CY2018	us-gaap	Gain Loss On Sale Of Business GainLossOnSaleOfBusiness	0	USD
CY2017	us-gaap	Gain Loss On Sale Of Business GainLossOnSaleOfBusiness	536000	USD
CY2019	us-gaap	Noninterest Income Other Operating Income NoninterestIncomeOtherOperatingIncome	2147000	USD
CY2018	us-gaap	Noninterest Income Other Operating Income NoninterestIncomeOtherOperatingIncome	1722000	USD
CY2017	us-gaap	Noninterest Income Other Operating Income NoninterestIncomeOtherOperatingIncome	1160000	USD
CY2019	us-gaap	Noninterest Income NoninterestIncome	25975000	USD
CY2018	us-gaap	Noninterest Income NoninterestIncome	20723000	USD
CY2017	us-gaap	Noninterest Income NoninterestIncome	21435000	USD
CY2019	us-gaap	Labor And Related Expense LaborAndRelatedExpense	35212000	USD
CY2018	us-gaap	Labor And Related Expense LaborAndRelatedExpense	31323000	USD
CY2017	us-gaap	Labor And Related Expense LaborAndRelatedExpense	26205000	USD
CY2019	ccne	Employee Benefits EmployeeBenefits	11193000	USD
CY2018	ccne	Employee Benefits EmployeeBenefits	10533000	USD
CY2017	ccne	Employee Benefits EmployeeBenefits	9821000	USD
CY2019	us-gaap	Occupancy Net OccupancyNet	11221000	USD
CY2018	us-gaap	Occupancy Net OccupancyNet	10281000	USD
CY2017	us-gaap	Occupancy Net OccupancyNet	9546000	USD
CY2019	ccne	Amortization Of Core Deposit Intangible AmortizationOfCoreDepositIntangible	567000	USD
CY2018	ccne	Amortization Of Core Deposit Intangible AmortizationOfCoreDepositIntangible	898000	USD
CY2017	ccne	Amortization Of Core Deposit Intangible AmortizationOfCoreDepositIntangible	1229000	USD
CY2019	us-gaap	Information Technology And Data Processing InformationTechnologyAndDataProcessing	4994000	USD
CY2018	us-gaap	Information Technology And Data Processing InformationTechnologyAndDataProcessing	4586000	USD
CY2017	us-gaap	Information Technology And Data Processing InformationTechnologyAndDataProcessing	3944000	USD
CY2019	us-gaap	Taxes Excluding Income And Excise Taxes TaxesExcludingIncomeAndExciseTaxes	3140000	USD
CY2018	us-gaap	Taxes Excluding Income And Excise Taxes TaxesExcludingIncomeAndExciseTaxes	3441000	USD
CY2017	us-gaap	Taxes Excluding Income And Excise Taxes TaxesExcludingIncomeAndExciseTaxes	2815000	USD
CY2019	ccne	Legal Professional And Examination Fees LegalProfessionalAndExaminationFees	2514000	USD
CY2018	ccne	Legal Professional And Examination Fees LegalProfessionalAndExaminationFees	1851000	USD
CY2017	ccne	Legal Professional And Examination Fees LegalProfessionalAndExaminationFees	1819000	USD
CY2019	us-gaap	Advertising Expense AdvertisingExpense	2113000	USD
CY2018	us-gaap	Advertising Expense AdvertisingExpense	2345000	USD
CY2017	us-gaap	Advertising Expense AdvertisingExpense	2243000	USD
CY2019	us-gaap	Federal Deposit Insurance Corporation Premium Expense FederalDepositInsuranceCorporationPremiumExpense	1252000	USD
CY2018	us-gaap	Federal Deposit Insurance Corporation Premium Expense FederalDepositInsuranceCorporationPremiumExpense	1396000	USD
CY2019	us-gaap	Noninterest Expense Directors Fees NoninterestExpenseDirectorsFees	1352000	USD
CY2017	us-gaap	Federal Deposit Insurance Corporation Premium Expense FederalDepositInsuranceCorporationPremiumExpense	1182000	USD
CY2018	us-gaap	Noninterest Expense Directors Fees NoninterestExpenseDirectorsFees	885000	USD
CY2017	us-gaap	Noninterest Expense Directors Fees NoninterestExpenseDirectorsFees	1063000	USD
CY2019	us-gaap	Acquisition Costs AcquisitionCosts	170000	USD
CY2018	us-gaap	Acquisition Costs AcquisitionCosts	0	USD
CY2017	us-gaap	Acquisition Costs AcquisitionCosts	0	USD
CY2019	ccne	Card Processing And Interchange Expense CardProcessingAndInterchangeExpense	2891000	USD
CY2018	ccne	Card Processing And Interchange Expense CardProcessingAndInterchangeExpense	2834000	USD
CY2017	ccne	Card Processing And Interchange Expense CardProcessingAndInterchangeExpense	2116000	USD
CY2019	us-gaap	Other Noninterest Expense OtherNoninterestExpense	10889000	USD
CY2018	us-gaap	Other Noninterest Expense OtherNoninterestExpense	8969000	USD
CY2017	us-gaap	Other Noninterest Expense OtherNoninterestExpense	8054000	USD
CY2019	us-gaap	Noninterest Expense NoninterestExpense	87508000	USD
CY2018	us-gaap	Noninterest Expense NoninterestExpense	79342000	USD
CY2017	us-gaap	Noninterest Expense NoninterestExpense	70037000	USD
CY2019	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	48641000	USD
CY2018	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	40229000	USD
CY2017	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	36252000	USD
CY2019	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	8560000	USD
CY2018	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	6510000	USD
CY2017	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	12392000	USD
CY2019	us-gaap	Net Income Loss NetIncomeLoss	40081000	USD
CY2018	us-gaap	Net Income Loss NetIncomeLoss	33719000	USD
CY2017	us-gaap	Net Income Loss NetIncomeLoss	23860000	USD
CY2019	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax	10732000	USD
CY2018	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax	-4007000	USD
CY2017	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax	-1004000	USD
CY2019	us-gaap	Other Comprehensive Income Defined Benefit Plans Adjustment Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeDefinedBenefitPlansAdjustmentNetOfTaxPortionAttributableToParent	-428000	USD
CY2018	us-gaap	Other Comprehensive Income Defined Benefit Plans Adjustment Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeDefinedBenefitPlansAdjustmentNetOfTaxPortionAttributableToParent	-386000	USD
CY2017	us-gaap	Other Comprehensive Income Defined Benefit Plans Adjustment Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeDefinedBenefitPlansAdjustmentNetOfTaxPortionAttributableToParent	-825000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification And Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTax	-225000	USD
CY2018	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification And Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTax	-32000	USD
CY2017	us-gaap	Other Comprehensive Income Loss Derivatives Qualifying As Hedges Net Of Tax OtherComprehensiveIncomeLossDerivativesQualifyingAsHedgesNetOfTax	194000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	10935000	USD
CY2018	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-3653000	USD
CY2017	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	15000	USD
CY2019	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	51016000	USD
CY2018	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	30066000	USD
CY2017	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	23875000	USD
CY2019	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	2.63
CY2018	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	2.21
CY2017	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.57
CY2019	us-gaap	Amortization Of Deferred Loan Origination Fees Net AmortizationOfDeferredLoanOriginationFeesNet	870000	USD
CY2018	us-gaap	Amortization Of Deferred Loan Origination Fees Net AmortizationOfDeferredLoanOriginationFeesNet	537000	USD
CY2019	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	2.63
CY2018	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	2.21
CY2017	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.57
CY2016Q4	us-gaap	Stockholders Equity StockholdersEquity	211784000	USD
CY2017	us-gaap	Net Income Loss NetIncomeLoss	23860000	USD
CY2017	us-gaap	Tax Cuts And Jobs Act Of2017 Reclassification From Aoci To Retained Earnings Tax Effect TaxCutsAndJobsActOf2017ReclassificationFromAociToRetainedEarningsTaxEffect	0	USD
CY2017	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	15000	USD
CY2017	us-gaap	Stock Issued During Period Value Restricted Stock Award Forfeitures StockIssuedDuringPeriodValueRestrictedStockAwardForfeitures	0	USD
CY2017	ccne	Stock Issued During Period Value Restricted Stock Award Grants StockIssuedDuringPeriodValueRestrictedStockAwardGrants	0	USD
CY2017	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	928000	USD
CY2017	us-gaap	Stock Issued During Period Value New Issues StockIssuedDuringPeriodValueNewIssues	19294000	USD
CY2017	us-gaap	Treasury Stock Value Acquired Cost Method TreasuryStockValueAcquiredCostMethod	1747000	USD
CY2017	us-gaap	Dividends Cash DividendsCash	10094000	USD
CY2017Q4	us-gaap	Stockholders Equity StockholdersEquity	243910000	USD
CY2018	us-gaap	Net Income Loss NetIncomeLoss	33719000	USD
CY2018	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-3653000	USD
CY2018	us-gaap	Stock Issued During Period Value Restricted Stock Award Forfeitures StockIssuedDuringPeriodValueRestrictedStockAwardForfeitures	0	USD
CY2018	ccne	Stock Issued During Period Value Restricted Stock Award Grants StockIssuedDuringPeriodValueRestrictedStockAwardGrants	0	USD
CY2018	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	1545000	USD
CY2018	us-gaap	Treasury Stock Value Acquired Cost Method TreasuryStockValueAcquiredCostMethod	2284000	USD
CY2018	us-gaap	Dividends Cash DividendsCash	10237000	USD
CY2018Q4	us-gaap	Stockholders Equity StockholdersEquity	262830000	USD
CY2019	us-gaap	Net Income Loss NetIncomeLoss	40081000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	10935000	USD
CY2019	us-gaap	Stock Issued During Period Value Restricted Stock Award Forfeitures StockIssuedDuringPeriodValueRestrictedStockAwardForfeitures	0	USD
CY2019	ccne	Stock Issued During Period Value Restricted Stock Award Grants StockIssuedDuringPeriodValueRestrictedStockAwardGrants	0	USD
CY2019	ccne	Stock Issued During Period Value Performance Based Restricted Stock Award StockIssuedDuringPeriodValuePerformanceBasedRestrictedStockAward	0	USD
CY2019	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	1346000	USD
CY2019	us-gaap	Stock Issued During Period Value New Issues StockIssuedDuringPeriodValueNewIssues	1423000	USD
CY2019	us-gaap	Treasury Stock Value Acquired Cost Method TreasuryStockValueAcquiredCostMethod	994000	USD
CY2019	us-gaap	Dividends Cash DividendsCash	10358000	USD
CY2019Q4	us-gaap	Stockholders Equity StockholdersEquity	304966000	USD
CY2019	us-gaap	Net Income Loss NetIncomeLoss	40081000	USD
CY2018	us-gaap	Net Income Loss NetIncomeLoss	33719000	USD
CY2017	us-gaap	Net Income Loss NetIncomeLoss	23860000	USD
CY2019	us-gaap	Provision For Loan And Lease Losses ProvisionForLoanAndLeaseLosses	6024000	USD
CY2018	us-gaap	Provision For Loan And Lease Losses ProvisionForLoanAndLeaseLosses	6072000	USD
CY2017	us-gaap	Provision For Loan And Lease Losses ProvisionForLoanAndLeaseLosses	6655000	USD
CY2019	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	5963000	USD
CY2018	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	4811000	USD
CY2017	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	5242000	USD
CY2017	us-gaap	Amortization Of Deferred Loan Origination Fees Net AmortizationOfDeferredLoanOriginationFeesNet	1202000	USD
CY2019	us-gaap	Increase Decrease In Deferred Income Taxes IncreaseDecreaseInDeferredIncomeTaxes	204000	USD
CY2018	us-gaap	Increase Decrease In Deferred Income Taxes IncreaseDecreaseInDeferredIncomeTaxes	1076000	USD
CY2017	us-gaap	Increase Decrease In Deferred Income Taxes IncreaseDecreaseInDeferredIncomeTaxes	-3385000	USD
CY2019	us-gaap	Debt Securities Available For Sale Realized Gain Loss DebtSecuritiesAvailableForSaleRealizedGainLoss	148000	USD
CY2018	us-gaap	Debt Securities Available For Sale Realized Gain Loss DebtSecuritiesAvailableForSaleRealizedGainLoss	0	USD
CY2017	us-gaap	Debt Securities Available For Sale Realized Gain Loss DebtSecuritiesAvailableForSaleRealizedGainLoss	1543000	USD
CY2019	us-gaap	Debt Securities Trading Gain Loss DebtSecuritiesTradingGainLoss	1888000	USD
CY2018	us-gaap	Debt Securities Trading Gain Loss DebtSecuritiesTradingGainLoss	-451000	USD
CY2017	us-gaap	Debt Securities Trading Gain Loss DebtSecuritiesTradingGainLoss	881000	USD
CY2019	us-gaap	Proceeds From Sale Of Securities Operating Activities ProceedsFromSaleOfSecuritiesOperatingActivities	301000	USD
CY2018	us-gaap	Proceeds From Sale Of Securities Operating Activities ProceedsFromSaleOfSecuritiesOperatingActivities	455000	USD
CY2017	us-gaap	Proceeds From Sale Of Securities Operating Activities ProceedsFromSaleOfSecuritiesOperatingActivities	1091000	USD
CY2019	ccne	Proceedsfrom Saleof Visa Class B Shares Operating Activities ProceedsfromSaleofVisaClassBSharesOperatingActivities	463000	USD
CY2018	ccne	Proceedsfrom Saleof Visa Class B Shares Operating Activities ProceedsfromSaleofVisaClassBSharesOperatingActivities	0	USD
CY2017	ccne	Proceedsfrom Saleof Visa Class B Shares Operating Activities ProceedsfromSaleofVisaClassBSharesOperatingActivities	0	USD
CY2019	ccne	Gain Losson Visa Class B Shares GainLossonVisaClassBShares	463000	USD
CY2018	ccne	Gain Losson Visa Class B Shares GainLossonVisaClassBShares	0	USD
CY2017	ccne	Gain Losson Visa Class B Shares GainLossonVisaClassBShares	0	USD
CY2019	us-gaap	Payments For Purchase Of Securities Operating Activities PaymentsForPurchaseOfSecuritiesOperatingActivities	436000	USD
CY2018	us-gaap	Payments For Purchase Of Securities Operating Activities PaymentsForPurchaseOfSecuritiesOperatingActivities	1542000	USD
CY2017	us-gaap	Payments For Purchase Of Securities Operating Activities PaymentsForPurchaseOfSecuritiesOperatingActivities	2502000	USD
CY2019	us-gaap	Gain Loss On Sale Of Business GainLossOnSaleOfBusiness	0	USD
CY2018	us-gaap	Gain Loss On Sale Of Business GainLossOnSaleOfBusiness	0	USD
CY2017	us-gaap	Gain Loss On Sale Of Business GainLossOnSaleOfBusiness	536000	USD
CY2019	us-gaap	Gain Loss On Sale Of Loans And Leases GainLossOnSaleOfLoansAndLeases	990000	USD
CY2018	us-gaap	Gain Loss On Sale Of Loans And Leases GainLossOnSaleOfLoansAndLeases	624000	USD
CY2017	us-gaap	Gain Loss On Sale Of Loans And Leases GainLossOnSaleOfLoansAndLeases	545000	USD
CY2019	us-gaap	Gain Loss On Disposition Of Assets GainLossOnDispositionOfAssets	377000	USD
CY2018	us-gaap	Gain Loss On Disposition Of Assets GainLossOnDispositionOfAssets	-47000	USD
CY2017	us-gaap	Gain Loss On Disposition Of Assets GainLossOnDispositionOfAssets	107000	USD
CY2019	us-gaap	Proceeds From Sale Of Mortgage Loans Held For Sale ProceedsFromSaleOfMortgageLoansHeldForSale	43198000	USD
CY2018	us-gaap	Proceeds From Sale Of Mortgage Loans Held For Sale ProceedsFromSaleOfMortgageLoansHeldForSale	23311000	USD
CY2017	us-gaap	Proceeds From Sale Of Mortgage Loans Held For Sale ProceedsFromSaleOfMortgageLoansHeldForSale	24285000	USD
CY2019	us-gaap	Payments For Origination Of Mortgage Loans Held For Sale PaymentsForOriginationOfMortgageLoansHeldForSale	43458000	USD
CY2018	us-gaap	Payments For Origination Of Mortgage Loans Held For Sale PaymentsForOriginationOfMortgageLoansHeldForSale	22990000	USD
CY2017	us-gaap	Payments For Origination Of Mortgage Loans Held For Sale PaymentsForOriginationOfMortgageLoansHeldForSale	25231000	USD
CY2019	us-gaap	Bank Owned Life Insurance Income BankOwnedLifeInsuranceIncome	1317000	USD
CY2018	us-gaap	Bank Owned Life Insurance Income BankOwnedLifeInsuranceIncome	1408000	USD
CY2017	us-gaap	Bank Owned Life Insurance Income BankOwnedLifeInsuranceIncome	1659000	USD
CY2019	us-gaap	Share Based Compensation ShareBasedCompensation	1346000	USD
CY2018	us-gaap	Share Based Compensation ShareBasedCompensation	1545000	USD
CY2017	us-gaap	Share Based Compensation ShareBasedCompensation	928000	USD
CY2019	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	-1072000	USD
CY2018	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	3079000	USD
CY2017	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	1175000	USD
CY2019	us-gaap	Increase Decrease In Other Operating Liabilities IncreaseDecreaseInOtherOperatingLiabilities	3610000	USD
CY2018	us-gaap	Increase Decrease In Other Operating Liabilities IncreaseDecreaseInOtherOperatingLiabilities	4613000	USD
CY2017	us-gaap	Increase Decrease In Other Operating Liabilities IncreaseDecreaseInOtherOperatingLiabilities	698000	USD
CY2019	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	51907000	USD
CY2018	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	43768000	USD
CY2017	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	30763000	USD
CY2019	us-gaap	Proceeds From Maturities Prepayments And Calls Of Available For Sale Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities	98274000	USD
CY2018	us-gaap	Proceeds From Maturities Prepayments And Calls Of Available For Sale Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities	76349000	USD
CY2017	us-gaap	Proceeds From Maturities Prepayments And Calls Of Available For Sale Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities	92302000	USD
CY2019	us-gaap	Proceeds From Sale Of Available For Sale Securities Debt ProceedsFromSaleOfAvailableForSaleSecuritiesDebt	11403000	USD
CY2018	us-gaap	Proceeds From Sale Of Available For Sale Securities Debt ProceedsFromSaleOfAvailableForSaleSecuritiesDebt	0	USD
CY2017	us-gaap	Proceeds From Sale Of Available For Sale Securities Debt ProceedsFromSaleOfAvailableForSaleSecuritiesDebt	16340000	USD
CY2019	us-gaap	Payments To Acquire Available For Sale Securities Debt PaymentsToAcquireAvailableForSaleSecuritiesDebt	122358000	USD
CY2018	us-gaap	Payments To Acquire Available For Sale Securities Debt PaymentsToAcquireAvailableForSaleSecuritiesDebt	189374000	USD
CY2017	us-gaap	Payments To Acquire Available For Sale Securities Debt PaymentsToAcquireAvailableForSaleSecuritiesDebt	23689000	USD
CY2019	us-gaap	Payments To Acquire Loans Held For Investment PaymentsToAcquireLoansHeldForInvestment	335965000	USD
CY2018	us-gaap	Payments To Acquire Loans Held For Investment PaymentsToAcquireLoansHeldForInvestment	333552000	USD
CY2017	us-gaap	Payments To Acquire Loans Held For Investment PaymentsToAcquireLoansHeldForInvestment	273972000	USD
CY2019	us-gaap	Payments To Acquire Life Insurance Policies PaymentsToAcquireLifeInsurancePolicies	8778000	USD
CY2018	us-gaap	Payments To Acquire Life Insurance Policies PaymentsToAcquireLifeInsurancePolicies	0	USD
CY2017	us-gaap	Payments To Acquire Life Insurance Policies PaymentsToAcquireLifeInsurancePolicies	10000000	USD
CY2019	us-gaap	Proceeds From Life Insurance Policies ProceedsFromLifeInsurancePolicies	0	USD
CY2018	us-gaap	Proceeds From Life Insurance Policies ProceedsFromLifeInsurancePolicies	0	USD
CY2017	us-gaap	Proceeds From Life Insurance Policies ProceedsFromLifeInsurancePolicies	897000	USD
CY2019	us-gaap	Proceeds From Divestiture Of Businesses ProceedsFromDivestitureOfBusinesses	0	USD
CY2018	us-gaap	Proceeds From Divestiture Of Businesses ProceedsFromDivestitureOfBusinesses	0	USD
CY2017	us-gaap	Proceeds From Divestiture Of Businesses ProceedsFromDivestitureOfBusinesses	1079000	USD
CY2019	ccne	Redemption Purchase Of Federal Home Loan Bank And Other Equity Interests RedemptionPurchaseOfFederalHomeLoanBankAndOtherEquityInterests	3360000	USD
CY2018	ccne	Redemption Purchase Of Federal Home Loan Bank And Other Equity Interests RedemptionPurchaseOfFederalHomeLoanBankAndOtherEquityInterests	2991000	USD
CY2017	ccne	Redemption Purchase Of Federal Home Loan Bank And Other Equity Interests RedemptionPurchaseOfFederalHomeLoanBankAndOtherEquityInterests	2331000	USD
CY2019	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	9045000	USD
CY2018	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	3068000	USD
CY2017	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	5215000	USD
CY2019	us-gaap	Proceeds From Sale Of Productive Assets ProceedsFromSaleOfProductiveAssets	1228000	USD
CY2018	us-gaap	Proceeds From Sale Of Productive Assets ProceedsFromSaleOfProductiveAssets	1048000	USD
CY2017	us-gaap	Proceeds From Sale Of Productive Assets ProceedsFromSaleOfProductiveAssets	938000	USD
CY2019	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-368601000	USD
CY2018	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-451588000	USD
CY2017	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-203651000	USD
CY2019	us-gaap	Net Change Noninterest Bearing Deposits Domestic NetChangeNoninterestBearingDepositsDomestic	459162000	USD
CY2018	us-gaap	Net Change Noninterest Bearing Deposits Domestic NetChangeNoninterestBearingDepositsDomestic	412505000	USD
CY2017	us-gaap	Net Change Noninterest Bearing Deposits Domestic NetChangeNoninterestBearingDepositsDomestic	16096000	USD
CY2019	us-gaap	Increase Decrease In Time Deposits IncreaseDecreaseInTimeDeposits	32379000	USD
CY2018	us-gaap	Increase Decrease In Time Deposits IncreaseDecreaseInTimeDeposits	30466000	USD
CY2017	us-gaap	Increase Decrease In Time Deposits IncreaseDecreaseInTimeDeposits	134197000	USD
CY2019	ccne	Increase Decrease In Deposits Held For Sale IncreaseDecreaseInDepositsHeldForSale	0	USD
CY2018	ccne	Increase Decrease In Deposits Held For Sale IncreaseDecreaseInDepositsHeldForSale	0	USD
CY2017	ccne	Increase Decrease In Deposits Held For Sale IncreaseDecreaseInDepositsHeldForSale	1079000	USD
CY2019	ccne	Payments For Purchase Of Treasury Stock PaymentsForPurchaseOfTreasuryStock	1291000	USD
CY2018	ccne	Payments For Purchase Of Treasury Stock PaymentsForPurchaseOfTreasuryStock	2454000	USD
CY2017	ccne	Payments For Purchase Of Treasury Stock PaymentsForPurchaseOfTreasuryStock	1877000	USD
CY2019	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	1423000	USD
CY2018	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	0	USD
CY2017	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	19294000	USD
CY2019	us-gaap	Payments Of Dividends PaymentsOfDividends	10358000	USD
CY2018	us-gaap	Payments Of Dividends PaymentsOfDividends	10237000	USD
CY2017	us-gaap	Payments Of Dividends PaymentsOfDividends	10094000	USD
CY2019	us-gaap	Proceeds From Issuance Of Long Term Debt ProceedsFromIssuanceOfLongTermDebt	30353000	USD
CY2018	us-gaap	Proceeds From Issuance Of Long Term Debt ProceedsFromIssuanceOfLongTermDebt	50000000	USD
CY2017	us-gaap	Proceeds From Issuance Of Long Term Debt ProceedsFromIssuanceOfLongTermDebt	160000000	USD
CY2019	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	47563000	USD
CY2018	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	27826000	USD
CY2017	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	70092000	USD
CY2019	us-gaap	Proceeds From Repayments Of Short Term Debt ProceedsFromRepaymentsOfShortTermDebt	0	USD
CY2018	us-gaap	Proceeds From Repayments Of Short Term Debt ProceedsFromRepaymentsOfShortTermDebt	-34416000	USD
CY2017	us-gaap	Proceeds From Repayments Of Short Term Debt ProceedsFromRepaymentsOfShortTermDebt	-69553000	USD
CY2019	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	464105000	USD
CY2018	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	418038000	USD
CY2017	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	179050000	USD
CY2019	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	147411000	USD
CY2018	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	10218000	USD
CY2017	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	6162000	USD
CY2018Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	45563000	USD
CY2017Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	35345000	USD
CY2016Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	29183000	USD
CY2019Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	192974000	USD
CY2018Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	45563000	USD
CY2017Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	35345000	USD
CY2019	us-gaap	Interest Paid Net InterestPaidNet	39282000	USD
CY2018	us-gaap	Interest Paid Net InterestPaidNet	26551000	USD
CY2017	us-gaap	Interest Paid Net InterestPaidNet	17481000	USD
CY2019	us-gaap	Income Taxes Paid IncomeTaxesPaid	8006000	USD
CY2018	us-gaap	Income Taxes Paid IncomeTaxesPaid	7050000	USD
CY2017	us-gaap	Income Taxes Paid IncomeTaxesPaid	7810000	USD
CY2019	us-gaap	Transfer To Other Real Estate TransferToOtherRealEstate	2066000	USD
CY2018	us-gaap	Transfer To Other Real Estate TransferToOtherRealEstate	228000	USD
CY2017	us-gaap	Transfer To Other Real Estate TransferToOtherRealEstate	630000	USD
CY2019	ccne	Grant Of Restricted Stock Awards From Treasury Stock GrantOfRestrictedStockAwardsFromTreasuryStock	1086000	USD
CY2018	ccne	Grant Of Restricted Stock Awards From Treasury Stock GrantOfRestrictedStockAwardsFromTreasuryStock	996000	USD
CY2017	ccne	Grant Of Restricted Stock Awards From Treasury Stock GrantOfRestrictedStockAwardsFromTreasuryStock	984000	USD
CY2019	ccne	Grant Of Performance Based Restricted Stock From Treasury Stock GrantOfPerformanceBasedRestrictedStockFromTreasuryStock	21000	USD
CY2018	ccne	Grant Of Performance Based Restricted Stock From Treasury Stock GrantOfPerformanceBasedRestrictedStockFromTreasuryStock	0	USD
CY2017	ccne	Grant Of Performance Based Restricted Stock From Treasury Stock GrantOfPerformanceBasedRestrictedStockFromTreasuryStock	0	USD
CY2019	us-gaap	Restricted Stock Award Forfeitures RestrictedStockAwardForfeitures	71000	USD
CY2018	us-gaap	Restricted Stock Award Forfeitures RestrictedStockAwardForfeitures	11000	USD
CY2017	us-gaap	Restricted Stock Award Forfeitures RestrictedStockAwardForfeitures	67000	USD
CY2019	us-gaap	Right Of Use Asset Obtained In Exchange For Finance Lease Liability RightOfUseAssetObtainedInExchangeForFinanceLeaseLiability	19465000	USD
CY2018	us-gaap	Right Of Use Asset Obtained In Exchange For Finance Lease Liability RightOfUseAssetObtainedInExchangeForFinanceLeaseLiability	0	USD
CY2017	us-gaap	Right Of Use Asset Obtained In Exchange For Finance Lease Liability RightOfUseAssetObtainedInExchangeForFinanceLeaseLiability	0	USD
CY2019	us-gaap	Use Of Estimates UseOfEstimates	<div style="line-height:120%;text-align:justify;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;font-weight:bold;">Use of Estimates</span></div><div style="line-height:120%;text-align:justify;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"><br/></span></div><div style="line-height:120%;text-align:justify;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;">To prepare financial statements in conformity with accounting principles generally accepted in the U.S., management makes estimates and assumptions based on available information. These estimates and assumptions affect the amounts reported in the financial statements and the disclosures provided, and actual results could differ.</span></div>
CY2019	us-gaap	Number Of Reportable Segments NumberOfReportableSegments	1	Segment
CY2019	ccne	Delinquent Period DelinquentPeriod	P90D
CY2019	us-gaap	Concentration Risk Credit Risk ConcentrationRiskCreditRisk	<div style="line-height:120%;text-align:justify;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;font-weight:bold;">Concentration of Credit Risk</span></div><div style="line-height:120%;text-align:justify;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"><br/></span></div><div style="line-height:120%;text-align:justify;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;">Most of the Corporation’s business activity is with customers located within the Commonwealth of Pennsylvania and the states of Ohio and New York. Therefore, the Corporation’s exposure to credit risk is significantly affected by changes in the economies of Pennsylvania, Ohio, and New York.</span></div>
CY2019Q4	ccne	Number Of Nonqualified Options Or Restricted Stock For Key Employees And Independent Director NumberOfNonqualifiedOptionsOrRestrictedStockForKeyEmployeesAndIndependentDirector	507671	shares
CY2019	us-gaap	Adjustments To Additional Paid In Capital Tax Effect From Share Based Compensation AdjustmentsToAdditionalPaidInCapitalTaxEffectFromShareBasedCompensation	283000	USD
CY2018	us-gaap	Adjustments To Additional Paid In Capital Tax Effect From Share Based Compensation AdjustmentsToAdditionalPaidInCapitalTaxEffectFromShareBasedCompensation	324000	USD
CY2017	us-gaap	Adjustments To Additional Paid In Capital Tax Effect From Share Based Compensation AdjustmentsToAdditionalPaidInCapitalTaxEffectFromShareBasedCompensation	325000	USD
CY2019	ccne	Average Amount Of Non Interest Bearing Reserve With Federal Reserve Bank AverageAmountOfNonInterestBearingReserveWithFederalReserveBank	50000	USD
CY2019	us-gaap	Prior Period Reclassification Adjustment Description PriorPeriodReclassificationAdjustmentDescription	<div style="line-height:120%;padding-bottom:16px;text-align:left;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;color:#212529;font-weight:bold;">Reclassifications</span></div><div style="line-height:120%;text-align:left;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;color:#212529;">Certain amounts appearing in the financial statements and notes thereto for prior periods have been reclassified to conform with the current presentation. The reclassifications had no effect on net income or stockholders’ equity as previously reported.</span></div>
CY2019Q4	us-gaap	Available For Sale Debt Securities Amortized Cost Basis AvailableForSaleDebtSecuritiesAmortizedCostBasis	533203000	USD
CY2019Q4	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Gain Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax	10617000	USD
CY2019Q4	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Loss Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax	1507000	USD
CY2019Q4	us-gaap	Available For Sale Securities Debt Securities AvailableForSaleSecuritiesDebtSecurities	542313000	USD
CY2018Q4	us-gaap	Available For Sale Debt Securities Amortized Cost Basis AvailableForSaleDebtSecuritiesAmortizedCostBasis	521337000	USD
CY2018Q4	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Gain Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax	2853000	USD
CY2018Q4	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Loss Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax	7327000	USD
CY2018Q4	us-gaap	Available For Sale Securities Debt Securities AvailableForSaleSecuritiesDebtSecurities	516863000	USD
CY2019Q4	ccne	Number Of Securities Holdings NumberOfSecuritiesHoldings	0	security
CY2019Q4	ccne	Shareholders Equity Percentage ShareholdersEquityPercentage	0.10
CY2019Q4	us-gaap	Trading Securities TradingSecurities	9809000	USD
CY2018Q4	us-gaap	Trading Securities TradingSecurities	7786000	USD
CY2019Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position Less Than12 Months DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12Months	58267000	USD
CY2019Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position Less Than12 Months Accumulated Loss DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss	434000	USD
CY2019Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position12 Months Or Longer DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLonger	59985000	USD
CY2019Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position12 Months Or Longer Accumulated Loss DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss	1073000	USD
CY2019Q4	us-gaap	Debt Securities Available For Sale Unrealized Loss Position DebtSecuritiesAvailableForSaleUnrealizedLossPosition	118252000	USD
CY2019Q4	us-gaap	Debt Securities Available For Sale Unrealized Loss Position Accumulated Loss DebtSecuritiesAvailableForSaleUnrealizedLossPositionAccumulatedLoss	1507000	USD
CY2018Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position Less Than12 Months DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12Months	98395000	USD
CY2018Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position Less Than12 Months Accumulated Loss DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss	766000	USD
CY2018Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position12 Months Or Longer DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLonger	210530000	USD
CY2018Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position12 Months Or Longer Accumulated Loss DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss	6561000	USD
CY2018Q4	us-gaap	Debt Securities Available For Sale Unrealized Loss Position DebtSecuritiesAvailableForSaleUnrealizedLossPosition	308925000	USD
CY2018Q4	us-gaap	Debt Securities Available For Sale Unrealized Loss Position Accumulated Loss DebtSecuritiesAvailableForSaleUnrealizedLossPositionAccumulatedLoss	7327000	USD
CY2018Q4	us-gaap	Other Than Temporary Impairment Credit Losses Recognized In Earnings Credit Losses On Debt Securities Held OtherThanTemporaryImpairmentCreditLossesRecognizedInEarningsCreditLossesOnDebtSecuritiesHeld	0	USD
CY2017Q4	us-gaap	Other Than Temporary Impairment Credit Losses Recognized In Earnings Credit Losses On Debt Securities Held OtherThanTemporaryImpairmentCreditLossesRecognizedInEarningsCreditLossesOnDebtSecuritiesHeld	0	USD
CY2016Q4	us-gaap	Other Than Temporary Impairment Credit Losses Recognized In Earnings Credit Losses On Debt Securities Held OtherThanTemporaryImpairmentCreditLossesRecognizedInEarningsCreditLossesOnDebtSecuritiesHeld	2071000	USD
CY2019	us-gaap	Other Than Temporary Impairment Credit Losses Recognized In Earnings Reductions Securities Sold OtherThanTemporaryImpairmentCreditLossesRecognizedInEarningsReductionsSecuritiesSold	0	USD
CY2018	us-gaap	Other Than Temporary Impairment Credit Losses Recognized In Earnings Reductions Securities Sold OtherThanTemporaryImpairmentCreditLossesRecognizedInEarningsReductionsSecuritiesSold	0	USD
CY2017	us-gaap	Other Than Temporary Impairment Credit Losses Recognized In Earnings Reductions Securities Sold OtherThanTemporaryImpairmentCreditLossesRecognizedInEarningsReductionsSecuritiesSold	2071000	USD
CY2019	us-gaap	Other Than Temporary Impairment Credit Losses Recognized In Earnings Additions No Previous Impairment OtherThanTemporaryImpairmentCreditLossesRecognizedInEarningsAdditionsNoPreviousImpairment	0	USD
CY2018	us-gaap	Other Than Temporary Impairment Credit Losses Recognized In Earnings Additions No Previous Impairment OtherThanTemporaryImpairmentCreditLossesRecognizedInEarningsAdditionsNoPreviousImpairment	0	USD
CY2017	us-gaap	Other Than Temporary Impairment Credit Losses Recognized In Earnings Additions No Previous Impairment OtherThanTemporaryImpairmentCreditLossesRecognizedInEarningsAdditionsNoPreviousImpairment	0	USD
CY2019	us-gaap	Other Than Temporary Impairment Credit Losses Recognized In Earnings Additions Additional Credit Losses OtherThanTemporaryImpairmentCreditLossesRecognizedInEarningsAdditionsAdditionalCreditLosses	0	USD
CY2018	us-gaap	Other Than Temporary Impairment Credit Losses Recognized In Earnings Additions Additional Credit Losses OtherThanTemporaryImpairmentCreditLossesRecognizedInEarningsAdditionsAdditionalCreditLosses	0	USD
CY2017	us-gaap	Other Than Temporary Impairment Credit Losses Recognized In Earnings Additions Additional Credit Losses OtherThanTemporaryImpairmentCreditLossesRecognizedInEarningsAdditionsAdditionalCreditLosses	0	USD
CY2019Q4	us-gaap	Other Than Temporary Impairment Credit Losses Recognized In Earnings Credit Losses On Debt Securities Held OtherThanTemporaryImpairmentCreditLossesRecognizedInEarningsCreditLossesOnDebtSecuritiesHeld	0	USD
CY2018Q4	us-gaap	Other Than Temporary Impairment Credit Losses Recognized In Earnings Credit Losses On Debt Securities Held OtherThanTemporaryImpairmentCreditLossesRecognizedInEarningsCreditLossesOnDebtSecuritiesHeld	0	USD
CY2017Q4	us-gaap	Other Than Temporary Impairment Credit Losses Recognized In Earnings Credit Losses On Debt Securities Held OtherThanTemporaryImpairmentCreditLossesRecognizedInEarningsCreditLossesOnDebtSecuritiesHeld	0	USD
CY2019Q4	us-gaap	Available For Sale Securities Debt Maturities Within One Year Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearAmortizedCost	59815000	USD
CY2019Q4	us-gaap	Available For Sale Securities Debt Maturities Within One Year Fair Value AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearFairValue	59831000	USD
CY2019Q4	us-gaap	Available For Sale Securities Debt Maturities After One Through Five Years Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsAmortizedCost	104134000	USD
CY2019Q4	us-gaap	Available For Sale Securities Debt Maturities After One Through Five Years Fair Value AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsFairValue	106084000	USD
CY2019Q4	us-gaap	Available For Sale Securities Debt Maturities After Five Through Ten Years Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsAmortizedCost	66534000	USD
CY2019Q4	us-gaap	Available For Sale Securities Debt Maturities After Five Through Ten Years Fair Value AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsFairValue	70191000	USD
CY2019Q4	us-gaap	Available For Sale Securities Debt Maturities After Ten Years Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesAfterTenYearsAmortizedCost	4253000	USD
CY2019Q4	us-gaap	Available For Sale Securities Debt Maturities After Ten Years Fair Value AvailableForSaleSecuritiesDebtMaturitiesAfterTenYearsFairValue	4397000	USD
CY2019Q4	us-gaap	Available For Sale Securities Debt Maturities Single Maturity Date Amortized Cost Basis AvailableForSaleSecuritiesDebtMaturitiesSingleMaturityDateAmortizedCostBasis	234736000	USD
CY2019Q4	us-gaap	Available For Sale Securities Debt Maturities Single Maturity Date AvailableForSaleSecuritiesDebtMaturitiesSingleMaturityDate	240503000	USD
CY2019Q4	us-gaap	Available For Sale Debt Securities Amortized Cost Basis AvailableForSaleDebtSecuritiesAmortizedCostBasis	533203000	USD
CY2019Q4	us-gaap	Available For Sale Securities Debt Securities AvailableForSaleSecuritiesDebtSecurities	542313000	USD
CY2019	us-gaap	Proceeds From Sale Of Available For Sale Securities Debt ProceedsFromSaleOfAvailableForSaleSecuritiesDebt	11403000	USD
CY2019	us-gaap	Debt Securities Available For Sale Realized Gain DebtSecuritiesAvailableForSaleRealizedGain	152000	USD
CY2019	us-gaap	Debt Securities Available For Sale Realized Loss DebtSecuritiesAvailableForSaleRealizedLoss	4000	USD
CY2018	us-gaap	Proceeds From Sale Of Available For Sale Securities Debt ProceedsFromSaleOfAvailableForSaleSecuritiesDebt	0	USD
CY2018	us-gaap	Debt Securities Available For Sale Realized Gain DebtSecuritiesAvailableForSaleRealizedGain	0	USD
CY2018	us-gaap	Debt Securities Available For Sale Realized Loss DebtSecuritiesAvailableForSaleRealizedLoss	0	USD
CY2017	us-gaap	Proceeds From Sale Of Available For Sale Securities Debt ProceedsFromSaleOfAvailableForSaleSecuritiesDebt	16340000	USD
CY2017	us-gaap	Debt Securities Available For Sale Realized Gain DebtSecuritiesAvailableForSaleRealizedGain	1614000	USD
CY2017	us-gaap	Debt Securities Available For Sale Realized Loss DebtSecuritiesAvailableForSaleRealizedLoss	71000	USD
CY2019	ccne	Tax Provision Related To Net Realized Gains TaxProvisionRelatedToNetRealizedGains	31000	USD
CY2018	ccne	Tax Provision Related To Net Realized Gains TaxProvisionRelatedToNetRealizedGains	0	USD
CY2017	ccne	Tax Provision Related To Net Realized Gains TaxProvisionRelatedToNetRealizedGains	540000	USD
CY2019	us-gaap	Proceeds From Sale Of Securities Operating Activities ProceedsFromSaleOfSecuritiesOperatingActivities	301000	USD
CY2018	us-gaap	Proceeds From Sale Of Securities Operating Activities ProceedsFromSaleOfSecuritiesOperatingActivities	455000	USD
CY2017	us-gaap	Proceeds From Sale Of Securities Operating Activities ProceedsFromSaleOfSecuritiesOperatingActivities	1091000	USD
CY2019	us-gaap	Debt Securities Trading Realized Gain Loss DebtSecuritiesTradingRealizedGainLoss	16000	USD
CY2018	us-gaap	Debt Securities Trading Realized Gain Loss DebtSecuritiesTradingRealizedGainLoss	151000	USD
CY2017	us-gaap	Debt Securities Trading Realized Gain Loss DebtSecuritiesTradingRealizedGainLoss	93000	USD
CY2019	ccne	Gain Losson Visa Class B Shares GainLossonVisaClassBShares	463000	USD
CY2019Q4	us-gaap	Loans And Leases Receivable Deferred Income LoansAndLeasesReceivableDeferredIncome	5162000	USD
CY2018Q4	us-gaap	Loans And Leases Receivable Deferred Income LoansAndLeasesReceivableDeferredIncome	4791000	USD
CY2019Q4	us-gaap	Loans And Leases Receivable Allowance LoansAndLeasesReceivableAllowance	19473000	USD
CY2018Q4	us-gaap	Loans And Leases Receivable Allowance LoansAndLeasesReceivableAllowance	19704000	USD
CY2019Q4	us-gaap	Loans And Leases Receivable Net Reported Amount LoansAndLeasesReceivableNetReportedAmount	2784562000	USD
CY2018Q4	us-gaap	Loans And Leases Receivable Net Reported Amount LoansAndLeasesReceivableNetReportedAmount	2454853000	USD
CY2019Q4	us-gaap	Unamortized Loan Commitment And Origination Fees And Unamortized Discounts Or Premiums UnamortizedLoanCommitmentAndOriginationFeesAndUnamortizedDiscountsOrPremiums	3092000	USD
CY2018Q4	us-gaap	Unamortized Loan Commitment And Origination Fees And Unamortized Discounts Or Premiums UnamortizedLoanCommitmentAndOriginationFeesAndUnamortizedDiscountsOrPremiums	3175000	USD
CY2019Q4	ccne	Percentage Of Commercial Industrial And Agricultural Loans In Loan Portfolio PercentageOfCommercialIndustrialAndAgriculturalLoansInLoanPortfolio	0.37
CY2018Q4	ccne	Percentage Of Commercial Industrial And Agricultural Loans In Loan Portfolio PercentageOfCommercialIndustrialAndAgriculturalLoansInLoanPortfolio	0.37
CY2019Q4	ccne	Percentage Of Commercial Mortgage Loans In Loan Portfolio PercentageOfCommercialMortgageLoansInLoanPortfolio	0.29
CY2018Q4	ccne	Percentage Of Commercial Mortgage Loans In Loan Portfolio PercentageOfCommercialMortgageLoansInLoanPortfolio	0.28
CY2019	ccne	Commercial Industrial And Agricultural Loan Amount As Maximum Percentage Of Business Equipment CommercialIndustrialAndAgriculturalLoanAmountAsMaximumPercentageOfBusinessEquipment	0.80
CY2019	ccne	Commercial Industrial And Agricultural Loan Amount As Maximum Percentage Of Accounts Receivable CommercialIndustrialAndAgriculturalLoanAmountAsMaximumPercentageOfAccountsReceivable	0.75
CY2019	ccne	Commercial Industrial And Agricultural Loan Amount As Maximum Percentage Of Business Inventory CommercialIndustrialAndAgriculturalLoanAmountAsMaximumPercentageOfBusinessInventory	0.60
CY2019	ccne	Commercial Mortgage Loan Amount As Maximum Percentage Of Appraised Real Estate Value CommercialMortgageLoanAmountAsMaximumPercentageOfAppraisedRealEstateValue	0.85
CY2019Q4	ccne	Percentage Of Residential Real Estate Loans In Loan Portfolio PercentageOfResidentialRealEstateLoansInLoanPortfolio	0.29
CY2018Q4	ccne	Percentage Of Residential Real Estate Loans In Loan Portfolio PercentageOfResidentialRealEstateLoansInLoanPortfolio	0.31
CY2018Q4	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	19704000	USD
CY2019	us-gaap	Financing Receivable Allowance For Credit Losses Write Offs FinancingReceivableAllowanceForCreditLossesWriteOffs	6751000	USD
CY2019	us-gaap	Financing Receivable Allowance For Credit Losses Recovery FinancingReceivableAllowanceForCreditLossesRecovery	496000	USD
CY2019	us-gaap	Provision For Loan Losses Expensed ProvisionForLoanLossesExpensed	6024000	USD
CY2019Q4	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	19473000	USD
CY2017Q4	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	19693000	USD
CY2018	us-gaap	Financing Receivable Allowance For Credit Losses Write Offs FinancingReceivableAllowanceForCreditLossesWriteOffs	6593000	USD
CY2018	us-gaap	Financing Receivable Allowance For Credit Losses Recovery FinancingReceivableAllowanceForCreditLossesRecovery	532000	USD
CY2018	us-gaap	Provision For Loan Losses Expensed ProvisionForLoanLossesExpensed	6072000	USD
CY2018Q4	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	19704000	USD
CY2016Q4	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	16330000	USD
CY2017	us-gaap	Financing Receivable Allowance For Credit Losses Write Offs FinancingReceivableAllowanceForCreditLossesWriteOffs	4077000	USD
CY2017	us-gaap	Financing Receivable Allowance For Credit Losses Recovery FinancingReceivableAllowanceForCreditLossesRecovery	785000	USD
CY2017	us-gaap	Provision For Loan Losses Expensed ProvisionForLoanLossesExpensed	6655000	USD
CY2017Q4	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	19693000	USD
CY2019Q4	us-gaap	Financing Receivable Allowance For Credit Losses Individually Evaluated For Impairment1 FinancingReceivableAllowanceForCreditLossesIndividuallyEvaluatedForImpairment1	1943000	USD
CY2019Q4	us-gaap	Financing Receivable Allowance For Credit Losses Collectively Evaluated For Impairment FinancingReceivableAllowanceForCreditLossesCollectivelyEvaluatedForImpairment	17172000	USD
CY2019Q4	ccne	Financing Receivable Allowance For Credit Losses Modifications Recorded Investment FinancingReceivableAllowanceForCreditLossesModificationsRecordedInvestment	358000	USD
CY2019Q4	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	19473000	USD
CY2019Q4	us-gaap	Financing Receivable Individually Evaluated For Impairment FinancingReceivableIndividuallyEvaluatedForImpairment	10953000	USD
CY2019Q4	us-gaap	Financing Receivable Collectively Evaluated For Impairment FinancingReceivableCollectivelyEvaluatedForImpairment	2787919000	USD
CY2019Q4	us-gaap	Financing Receivable Modifications Recorded Investment FinancingReceivableModificationsRecordedInvestment	9802000	USD
CY2019Q4	us-gaap	Loans And Leases Receivable Before Fees Gross LoansAndLeasesReceivableBeforeFeesGross	2809197000	USD
CY2018Q4	us-gaap	Financing Receivable Allowance For Credit Losses Individually Evaluated For Impairment1 FinancingReceivableAllowanceForCreditLossesIndividuallyEvaluatedForImpairment1	168000	USD
CY2018Q4	us-gaap	Financing Receivable Allowance For Credit Losses Collectively Evaluated For Impairment FinancingReceivableAllowanceForCreditLossesCollectivelyEvaluatedForImpairment	14982000	USD
CY2018Q4	ccne	Financing Receivable Allowance For Credit Losses Modifications Recorded Investment FinancingReceivableAllowanceForCreditLossesModificationsRecordedInvestment	4554000	USD
CY2018Q4	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	19704000	USD
CY2018Q4	us-gaap	Financing Receivable Individually Evaluated For Impairment FinancingReceivableIndividuallyEvaluatedForImpairment	3292000	USD
CY2018Q4	us-gaap	Financing Receivable Collectively Evaluated For Impairment FinancingReceivableCollectivelyEvaluatedForImpairment	2460863000	USD
CY2018Q4	us-gaap	Financing Receivable Modifications Recorded Investment FinancingReceivableModificationsRecordedInvestment	14626000	USD
CY2018Q4	us-gaap	Loans And Leases Receivable Before Fees Gross LoansAndLeasesReceivableBeforeFeesGross	2479348000	USD
CY2019Q4	us-gaap	Impaired Financing Receivable Unpaid Principal Balance ImpairedFinancingReceivableUnpaidPrincipalBalance	24431000	USD
CY2019Q4	us-gaap	Impaired Financing Receivable Recorded Investment ImpairedFinancingReceivableRecordedInvestment	20755000	USD
CY2019Q4	us-gaap	Impaired Financing Receivable Related Allowance ImpairedFinancingReceivableRelatedAllowance	2301000	USD
CY2018Q4	us-gaap	Impaired Financing Receivable Unpaid Principal Balance ImpairedFinancingReceivableUnpaidPrincipalBalance	23707000	USD
CY2018Q4	us-gaap	Impaired Financing Receivable Recorded Investment ImpairedFinancingReceivableRecordedInvestment	17918000	USD
CY2018Q4	us-gaap	Impaired Financing Receivable Related Allowance ImpairedFinancingReceivableRelatedAllowance	4722000	USD
CY2019	us-gaap	Impaired Financing Receivable Average Recorded Investment ImpairedFinancingReceivableAverageRecordedInvestment	17725000	USD
CY2019	us-gaap	Impaired Financing Receivable Interest Income Accrual Method ImpairedFinancingReceivableInterestIncomeAccrualMethod	599000	USD
CY2019	us-gaap	Impaired Financing Receivable Interest Income Cash Basis Method ImpairedFinancingReceivableInterestIncomeCashBasisMethod	599000	USD
CY2018	us-gaap	Impaired Financing Receivable Average Recorded Investment ImpairedFinancingReceivableAverageRecordedInvestment	20715000	USD
CY2018	us-gaap	Impaired Financing Receivable Interest Income Accrual Method ImpairedFinancingReceivableInterestIncomeAccrualMethod	915000	USD
CY2018	us-gaap	Impaired Financing Receivable Interest Income Cash Basis Method ImpairedFinancingReceivableInterestIncomeCashBasisMethod	886000	USD
CY2017	us-gaap	Impaired Financing Receivable Average Recorded Investment ImpairedFinancingReceivableAverageRecordedInvestment	18369000	USD
CY2017	us-gaap	Impaired Financing Receivable Interest Income Accrual Method ImpairedFinancingReceivableInterestIncomeAccrualMethod	660000	USD
CY2017	us-gaap	Impaired Financing Receivable Interest Income Cash Basis Method ImpairedFinancingReceivableInterestIncomeCashBasisMethod	660000	USD
CY2019Q4	us-gaap	Financing Receivable Recorded Investment Nonaccrual Status FinancingReceivableRecordedInvestmentNonaccrualStatus	21736000	USD
CY2019Q4	us-gaap	Financing Receivable Recorded Investment90 Days Past Due And Still Accruing FinancingReceivableRecordedInvestment90DaysPastDueAndStillAccruing	61000	USD
CY2018Q4	us-gaap	Financing Receivable Recorded Investment Nonaccrual Status FinancingReceivableRecordedInvestmentNonaccrualStatus	14262000	USD
CY2018Q4	us-gaap	Financing Receivable Recorded Investment90 Days Past Due And Still Accruing FinancingReceivableRecordedInvestment90DaysPastDueAndStillAccruing	887000	USD
CY2019Q4	us-gaap	Financing Receivable Recorded Investment Past Due FinancingReceivableRecordedInvestmentPastDue	17153000	USD
CY2019Q4	us-gaap	Financing Receivable Recorded Investment Current FinancingReceivableRecordedInvestmentCurrent	2792044000	USD
CY2019Q4	us-gaap	Loans And Leases Receivable Before Fees Gross LoansAndLeasesReceivableBeforeFeesGross	2809197000	USD
CY2018Q4	us-gaap	Financing Receivable Recorded Investment Past Due FinancingReceivableRecordedInvestmentPastDue	19129000	USD
CY2018Q4	us-gaap	Financing Receivable Recorded Investment Current FinancingReceivableRecordedInvestmentCurrent	2460219000	USD
CY2018Q4	us-gaap	Loans And Leases Receivable Before Fees Gross LoansAndLeasesReceivableBeforeFeesGross	2479348000	USD
CY2019	us-gaap	Financing Receivable Modifications Number Of Contracts2 FinancingReceivableModificationsNumberOfContracts2	23	loan
CY2019Q4	us-gaap	Financing Receivable Modifications Recorded Investment FinancingReceivableModificationsRecordedInvestment	9802000	USD
CY2019Q4	ccne	Financing Receivable Modifications Specific Reserve FinancingReceivableModificationsSpecificReserve	358000	USD
CY2018	us-gaap	Financing Receivable Modifications Number Of Contracts2 FinancingReceivableModificationsNumberOfContracts2	25	loan
CY2018Q4	us-gaap	Financing Receivable Modifications Recorded Investment FinancingReceivableModificationsRecordedInvestment	14626000	USD
CY2018Q4	ccne	Financing Receivable Modifications Specific Reserve FinancingReceivableModificationsSpecificReserve	4554000	USD
CY2019	us-gaap	Allowance For Loan And Lease Losses Period Increase Decrease AllowanceForLoanAndLeaseLossesPeriodIncreaseDecrease	0	USD
CY2018	us-gaap	Allowance For Loan And Lease Losses Period Increase Decrease AllowanceForLoanAndLeaseLossesPeriodIncreaseDecrease	351000	USD
CY2017	us-gaap	Allowance For Loan And Lease Losses Period Increase Decrease AllowanceForLoanAndLeaseLossesPeriodIncreaseDecrease	4024000	USD
CY2019	ccne	Minimum Period To Be Considered For Loan To Have Defaulted MinimumPeriodToBeConsideredForLoanToHaveDefaulted	P90D
CY2019Q4	ccne	Troubled Debt Restructuring Loan Principal Balance Forgiven TroubledDebtRestructuringLoanPrincipalBalanceForgiven	0	USD
CY2018Q4	us-gaap	Foreclosed Assets ForeclosedAssets	418000	USD
CY2017Q4	us-gaap	Foreclosed Assets ForeclosedAssets	710000	USD
CY2016Q4	us-gaap	Foreclosed Assets ForeclosedAssets	1015000	USD
CY2019	ccne	Real Estate Acquired Additions Through Foreclosure RealEstateAcquiredAdditionsThroughForeclosure	2066000	USD
CY2018	ccne	Real Estate Acquired Additions Through Foreclosure RealEstateAcquiredAdditionsThroughForeclosure	228000	USD
CY2017	ccne	Real Estate Acquired Additions Through Foreclosure RealEstateAcquiredAdditionsThroughForeclosure	630000	USD
CY2019	ccne	Foreclosed Real Estate Assets Sold At Carrying Value ForeclosedRealEstateAssetsSoldAtCarryingValue	851000	USD
CY2018	ccne	Foreclosed Real Estate Assets Sold At Carrying Value ForeclosedRealEstateAssetsSoldAtCarryingValue	520000	USD
CY2017	ccne	Foreclosed Real Estate Assets Sold At Carrying Value ForeclosedRealEstateAssetsSoldAtCarryingValue	935000	USD
CY2019Q4	us-gaap	Foreclosed Assets ForeclosedAssets	1633000	USD
CY2018Q4	us-gaap	Foreclosed Assets ForeclosedAssets	418000	USD
CY2017Q4	us-gaap	Foreclosed Assets ForeclosedAssets	710000	USD
CY2019	ccne	Foreclosed Real Estate Gain Loss On Sale ForeclosedRealEstateGainLossOnSale	377000	USD
CY2018	ccne	Foreclosed Real Estate Gain Loss On Sale ForeclosedRealEstateGainLossOnSale	310000	USD
CY2017	ccne	Foreclosed Real Estate Gain Loss On Sale ForeclosedRealEstateGainLossOnSale	208000	USD
CY2019	ccne	Foreclosed Real Estate Operating Expense Net ForeclosedRealEstateOperatingExpenseNet	316000	USD
CY2018	ccne	Foreclosed Real Estate Operating Expense Net ForeclosedRealEstateOperatingExpenseNet	283000	USD
CY2017	ccne	Foreclosed Real Estate Operating Expense Net ForeclosedRealEstateOperatingExpenseNet	366000	USD
CY2019	ccne	Foreclosed Real Estate Gain Loss On Sale Net ForeclosedRealEstateGainLossOnSaleNet	61000	USD
CY2018	ccne	Foreclosed Real Estate Gain Loss On Sale Net ForeclosedRealEstateGainLossOnSaleNet	27000	USD
CY2017	ccne	Foreclosed Real Estate Gain Loss On Sale Net ForeclosedRealEstateGainLossOnSaleNet	-158000	USD
CY2019	us-gaap	Payments For Origination Of Mortgage Loans Held For Sale PaymentsForOriginationOfMortgageLoansHeldForSale	43458000	USD
CY2018	us-gaap	Payments For Origination Of Mortgage Loans Held For Sale PaymentsForOriginationOfMortgageLoansHeldForSale	22990000	USD
CY2017	us-gaap	Payments For Origination Of Mortgage Loans Held For Sale PaymentsForOriginationOfMortgageLoansHeldForSale	25231000	USD
CY2019	us-gaap	Proceeds From Sale Of Mortgage Loans Held For Sale ProceedsFromSaleOfMortgageLoansHeldForSale	43198000	USD
CY2018	us-gaap	Proceeds From Sale Of Mortgage Loans Held For Sale ProceedsFromSaleOfMortgageLoansHeldForSale	23311000	USD
CY2017	us-gaap	Proceeds From Sale Of Mortgage Loans Held For Sale ProceedsFromSaleOfMortgageLoansHeldForSale	24285000	USD
CY2019	us-gaap	Gain Loss On Sales Of Loans Net GainLossOnSalesOfLoansNet	990000	USD
CY2018	us-gaap	Gain Loss On Sales Of Loans Net GainLossOnSalesOfLoansNet	624000	USD
CY2017	us-gaap	Gain Loss On Sales Of Loans Net GainLossOnSalesOfLoansNet	545000	USD
CY2019	ccne	Loan Servicing Fees LoanServicingFees	634000	USD
CY2018	ccne	Loan Servicing Fees LoanServicingFees	600000	USD
CY2017	ccne	Loan Servicing Fees LoanServicingFees	563000	USD
CY2019	us-gaap	Payments For Proceeds From Mortgage Servicing Rights PaymentsForProceedsFromMortgageServicingRights	188648000	USD
CY2018	us-gaap	Payments For Proceeds From Mortgage Servicing Rights PaymentsForProceedsFromMortgageServicingRights	166332000	USD
CY2018Q4	ccne	Capitalized Mortgage Servicing Rights CapitalizedMortgageServicingRights	1495000	USD
CY2017Q4	ccne	Capitalized Mortgage Servicing Rights CapitalizedMortgageServicingRights	1387000	USD
CY2016Q4	ccne	Capitalized Mortgage Servicing Rights CapitalizedMortgageServicingRights	1391000	USD
CY2019	us-gaap	Payments To Acquire Mortgage Servicing Rights Msr PaymentsToAcquireMortgageServicingRightsMSR	292000	USD
CY2018	us-gaap	Payments To Acquire Mortgage Servicing Rights Msr PaymentsToAcquireMortgageServicingRightsMSR	315000	USD
CY2017	us-gaap	Payments To Acquire Mortgage Servicing Rights Msr PaymentsToAcquireMortgageServicingRightsMSR	198000	USD
CY2019	us-gaap	Servicing Asset At Amortized Value Additions ServicingAssetAtAmortizedValueAdditions	0	USD
CY2018	us-gaap	Servicing Asset At Amortized Value Additions ServicingAssetAtAmortizedValueAdditions	0	USD
CY2017	us-gaap	Servicing Asset At Amortized Value Additions ServicingAssetAtAmortizedValueAdditions	0	USD
CY2019	us-gaap	Amortization Of Mortgage Servicing Rights Ms Rs AmortizationOfMortgageServicingRightsMSRs	214000	USD
CY2018	us-gaap	Amortization Of Mortgage Servicing Rights Ms Rs AmortizationOfMortgageServicingRightsMSRs	207000	USD
CY2017	us-gaap	Amortization Of Mortgage Servicing Rights Ms Rs AmortizationOfMortgageServicingRightsMSRs	202000	USD
CY2019Q4	ccne	Capitalized Mortgage Servicing Rights CapitalizedMortgageServicingRights	1573000	USD
CY2018Q4	ccne	Capitalized Mortgage Servicing Rights CapitalizedMortgageServicingRights	1495000	USD
CY2017Q4	ccne	Capitalized Mortgage Servicing Rights CapitalizedMortgageServicingRights	1387000	USD
CY2019Q4	us-gaap	Valuation Allowance For Impairment Of Recognized Servicing Assets Balance ValuationAllowanceForImpairmentOfRecognizedServicingAssetsBalance	0	USD
CY2019Q4	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	99032000	USD
CY2018Q4	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	89942000	USD
CY2019Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	44165000	USD
CY2018Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	40022000	USD
CY2019Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	54867000	USD
CY2018Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	49920000	USD
CY2019	us-gaap	Depreciation Depreciation	4098000	USD
CY2018	us-gaap	Depreciation Depreciation	3706000	USD
CY2017	us-gaap	Depreciation Depreciation	3811000	USD
CY2019Q4	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	18422000	USD
CY2019Q4	us-gaap	Finance Lease Right Of Use Asset FinanceLeaseRightOfUseAsset	501000	USD
CY2019Q4	ccne	Lease Rightof Use Asset LeaseRightofUseAsset	18923000	USD
CY2019Q4	us-gaap	Operating Lease Liability OperatingLeaseLiability	19363000	USD
CY2019Q4	us-gaap	Finance Lease Liability FinanceLeaseLiability	629000	USD
CY2019Q4	ccne	Lease Liability LeaseLiability	19992000	USD
CY2019Q4	ccne	Finance Lease Net Of Accumulated Amortization FinanceLeaseNetOfAccumulatedAmortization	715000	USD
CY2019Q4	ccne	Operatingand Finance Lease Liability Due Year Three OperatingandFinanceLeaseLiabilityDueYearThree	1735000	USD
CY2019	us-gaap	Operating Lease Cost OperatingLeaseCost	1666000	USD
CY2019	us-gaap	Variable Lease Cost VariableLeaseCost	98000	USD
CY2019	us-gaap	Finance Lease Right Of Use Asset Amortization FinanceLeaseRightOfUseAssetAmortization	72000	USD
CY2019	us-gaap	Finance Lease Interest Expense FinanceLeaseInterestExpense	30000	USD
CY2019	us-gaap	Sublease Income SubleaseIncome	83000	USD
CY2019	us-gaap	Lease Cost LeaseCost	1783000	USD
CY2018	ccne	Rental Expense Net Of Rental Income RentalExpenseNetOfRentalIncome	932000	USD
CY2017	ccne	Rental Expense Net Of Rental Income RentalExpenseNetOfRentalIncome	870000	USD
CY2019Q4	us-gaap	Lessee Operating Lease Liability Payments Due Next Twelve Months LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths	1533000	USD
CY2019Q4	us-gaap	Finance Lease Liability Payments Due Next Twelve Months FinanceLeaseLiabilityPaymentsDueNextTwelveMonths	105000	USD
CY2019Q4	ccne	Operatingand Finance Lease Liability Due Next Twelve Months OperatingandFinanceLeaseLiabilityDueNextTwelveMonths	1638000	USD
CY2019Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Two LesseeOperatingLeaseLiabilityPaymentsDueYearTwo	1586000	USD
CY2019Q4	us-gaap	Finance Lease Liability Payments Due Year Two FinanceLeaseLiabilityPaymentsDueYearTwo	105000	USD
CY2019Q4	ccne	Operatingand Finance Lease Liability Due Year Two OperatingandFinanceLeaseLiabilityDueYearTwo	1691000	USD
CY2019Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Three LesseeOperatingLeaseLiabilityPaymentsDueYearThree	1630000	USD
CY2019Q4	us-gaap	Finance Lease Liability Payments Due Year Three FinanceLeaseLiabilityPaymentsDueYearThree	105000	USD
CY2019Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Four LesseeOperatingLeaseLiabilityPaymentsDueYearFour	1518000	USD
CY2019Q4	us-gaap	Finance Lease Liability Payments Due Year Four FinanceLeaseLiabilityPaymentsDueYearFour	105000	USD
CY2019Q4	ccne	Operatingand Finance Lease Liability Due Year Four OperatingandFinanceLeaseLiabilityDueYearFour	1623000	USD
CY2019Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Five LesseeOperatingLeaseLiabilityPaymentsDueYearFive	1487000	USD
CY2019Q4	us-gaap	Finance Lease Liability Payments Due Year Five FinanceLeaseLiabilityPaymentsDueYearFive	105000	USD
CY2019Q4	ccne	Operatingand Finance Lease Liability Due Year Five OperatingandFinanceLeaseLiabilityDueYearFive	1592000	USD
CY2019Q4	us-gaap	Lessee Operating Lease Liability Payments Due After Year Five LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive	19373000	USD
CY2019Q4	us-gaap	Finance Lease Liability Payments Due After Year Five FinanceLeaseLiabilityPaymentsDueAfterYearFive	209000	USD
CY2019Q4	ccne	Operatingand Finance Lease Liability After Year Five OperatingandFinanceLeaseLiabilityAfterYearFive	19582000	USD
CY2019Q4	us-gaap	Lessee Operating Lease Liability Payments Due LesseeOperatingLeaseLiabilityPaymentsDue	27127000	USD
CY2019Q4	us-gaap	Finance Lease Liability Payments Due FinanceLeaseLiabilityPaymentsDue	734000	USD
CY2019Q4	ccne	Operatingand Finance Lease Liability Due OperatingandFinanceLeaseLiabilityDue	27861000	USD
CY2019Q4	us-gaap	Lessee Operating Lease Liability Undiscounted Excess Amount LesseeOperatingLeaseLiabilityUndiscountedExcessAmount	7764000	USD
CY2019Q4	us-gaap	Finance Lease Liability Undiscounted Excess Amount FinanceLeaseLiabilityUndiscountedExcessAmount	105000	USD
CY2019Q4	ccne	Operatingand Finance Lease Liability Undiscounted Excess Amount OperatingandFinanceLeaseLiabilityUndiscountedExcessAmount	7869000	USD
CY2019Q4	us-gaap	Operating Lease Liability OperatingLeaseLiability	19363000	USD
CY2019Q4	us-gaap	Finance Lease Liability FinanceLeaseLiability	629000	USD
CY2019Q4	ccne	Operatingand Finance Lease Liability OperatingandFinanceLeaseLiability	19992000	USD
CY2019Q4	us-gaap	Operating Lease Weighted Average Remaining Lease Term1 OperatingLeaseWeightedAverageRemainingLeaseTerm1	P18Y8M12D
CY2019Q4	us-gaap	Finance Lease Weighted Average Remaining Lease Term1 FinanceLeaseWeightedAverageRemainingLeaseTerm1	P7Y
CY2019Q4	us-gaap	Operating Lease Weighted Average Discount Rate Percent OperatingLeaseWeightedAverageDiscountRatePercent	0.0352
CY2019Q4	us-gaap	Finance Lease Weighted Average Discount Rate Percent FinanceLeaseWeightedAverageDiscountRatePercent	0.0449
CY2019	us-gaap	Operating Lease Payments OperatingLeasePayments	757000	USD
CY2018Q4	us-gaap	Goodwill Goodwill	38730000	USD
CY2017Q4	us-gaap	Goodwill Goodwill	38730000	USD
CY2019	us-gaap	Goodwill Acquired During Period GoodwillAcquiredDuringPeriod	0	USD
CY2018	us-gaap	Goodwill Acquired During Period GoodwillAcquiredDuringPeriod	0	USD
CY2019Q4	us-gaap	Goodwill Goodwill	38730000	USD
CY2018Q4	us-gaap	Goodwill Goodwill	38730000	USD
CY2019Q4	us-gaap	Time Deposit Maturities Year One TimeDepositMaturitiesYearOne	118695000	USD
CY2019Q4	us-gaap	Time Deposit Maturities Year Two TimeDepositMaturitiesYearTwo	138640000	USD
CY2019Q4	us-gaap	Time Deposit Maturities Year Three TimeDepositMaturitiesYearThree	147423000	USD
CY2019Q4	us-gaap	Time Deposit Maturities Year Four TimeDepositMaturitiesYearFour	10000000	USD
CY2019Q4	us-gaap	Time Deposit Maturities Year Five TimeDepositMaturitiesYearFive	3395000	USD
CY2019Q4	us-gaap	Time Deposit Maturities After Year Five TimeDepositMaturitiesAfterYearFive	9663000	USD
CY2019Q4	us-gaap	Time Deposits TimeDeposits	427816000	USD
CY2019Q4	ccne	Time Deposits250000 Or More TimeDeposits250000OrMore	112818000	USD
CY2018Q4	ccne	Time Deposits250000 Or More TimeDeposits250000OrMore	105626000	USD
CY2019Q4	us-gaap	Interest Bearing Domestic Deposit Brokered InterestBearingDomesticDepositBrokered	8097000	USD
CY2018Q4	us-gaap	Interest Bearing Domestic Deposit Brokered InterestBearingDomesticDepositBrokered	3219000	USD
CY2019	ccne	Number Of Unsecured Lines Of Credit Issued NumberOfUnsecuredLinesOfCreditIssued	1	line_of_credit
CY2019Q4	us-gaap	Line Of Credit Facility Maximum Borrowing Capacity LineOfCreditFacilityMaximumBorrowingCapacity	10000000	USD
CY2019Q4	us-gaap	Line Of Credit LineOfCredit	0	USD
CY2019Q4	us-gaap	Federal Home Loan Bank Advances General Debt Obligations Disclosures Amount Of Available Unused Funds FederalHomeLoanBankAdvancesGeneralDebtObligationsDisclosuresAmountOfAvailableUnusedFunds	422490000	USD
CY2019Q4	us-gaap	Federal Home Loan Bank Advances General Debt Obligations Disclosures Maximum Amount Available FederalHomeLoanBankAdvancesGeneralDebtObligationsDisclosuresMaximumAmountAvailable	900132000	USD
CY2019Q4	us-gaap	Advances From Federal Home Loan Banks AdvancesFromFederalHomeLoanBanks	227907000	USD
CY2018Q4	us-gaap	Advances From Federal Home Loan Banks AdvancesFromFederalHomeLoanBanks	245117000	USD
CY2019Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Next Twelve Months LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths	37505000	USD
CY2019Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Two LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo	33740000	USD
CY2019Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Three LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree	72931000	USD
CY2019Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Four LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour	51244000	USD
CY2019Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Five LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFive	31256000	USD
CY2019Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal After Year Five LongTermDebtMaturitiesRepaymentsOfPrincipalAfterYearFive	71851000	USD
CY2019Q4	us-gaap	Long Term Debt LongTermDebt	298527000	USD
CY2019	us-gaap	Defined Contribution Plan Employer Matching Contribution Percent DefinedContributionPlanEmployerMatchingContributionPercent	1
CY2019	ccne	Defined Contribution Plan Employer Matching Contribution Employee Contribution Percentage DefinedContributionPlanEmployerMatchingContributionEmployeeContributionPercentage	0.01
CY2019	us-gaap	Defined Contribution Plan Maximum Annual Contributions Per Employee Percent DefinedContributionPlanMaximumAnnualContributionsPerEmployeePercent	0.03
CY2019	ccne	Defined Benefit Plan Compensation By Employer DefinedBenefitPlanCompensationByEmployer	0.50
CY2019	ccne	Defined Contribution Plan Employer Matching Contribution Employee Contribution Percentage DefinedContributionPlanEmployerMatchingContributionEmployeeContributionPercentage	0.01
CY2019	ccne	Employee Benefit Plans Contribution By Employee Percentage EmployeeBenefitPlansContributionByEmployeePercentage	0.02
CY2019	us-gaap	Defined Contribution Plan Employer Discretionary Contribution Amount DefinedContributionPlanEmployerDiscretionaryContributionAmount	906000	USD
CY2018	us-gaap	Defined Contribution Plan Employer Discretionary Contribution Amount DefinedContributionPlanEmployerDiscretionaryContributionAmount	810000	USD
CY2017	us-gaap	Defined Contribution Plan Employer Discretionary Contribution Amount DefinedContributionPlanEmployerDiscretionaryContributionAmount	802000	USD
CY2019	ccne	Profit Sharing Contributions ProfitSharingContributions	0.060
CY2019	ccne	Compensation Percentage In Excess Of Specified Amount CompensationPercentageInExcessOfSpecifiedAmount	0.057
CY2019	ccne	Excess Specified Compensation ExcessSpecifiedCompensation	133000	USD
CY2019	ccne	Recognized Profit Sharing Expense RecognizedProfitSharingExpense	1949000	USD
CY2018	ccne	Recognized Profit Sharing Expense RecognizedProfitSharingExpense	1530000	USD
CY2017	ccne	Recognized Profit Sharing Expense RecognizedProfitSharingExpense	1755000	USD
CY2019Q4	us-gaap	Pension And Other Postretirement Defined Benefit Plans Liabilities Current And Noncurrent PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesCurrentAndNoncurrent	6333000	USD
CY2018Q4	us-gaap	Pension And Other Postretirement Defined Benefit Plans Liabilities Current And Noncurrent PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesCurrentAndNoncurrent	5867000	USD
CY2019	ccne	Expenses Related To Supplemental Executive Retirement Plan ExpensesRelatedToSupplementalExecutiveRetirementPlan	724000	USD
CY2018	ccne	Expenses Related To Supplemental Executive Retirement Plan ExpensesRelatedToSupplementalExecutiveRetirementPlan	776000	USD
CY2017	ccne	Expenses Related To Supplemental Executive Retirement Plan ExpensesRelatedToSupplementalExecutiveRetirementPlan	648000	USD
CY2019	ccne	Obligations Under Survivor Benefit Plan ObligationsUnderSurvivorBenefitPlan	1330000	USD
CY2018	ccne	Obligations Under Survivor Benefit Plan ObligationsUnderSurvivorBenefitPlan	1330000	USD
CY2019	ccne	Expenses Related To Survivor Benefit Plan ExpensesRelatedToSurvivorBenefitPlan	-1000	USD
CY2018	ccne	Expenses Related To Survivor Benefit Plan ExpensesRelatedToSurvivorBenefitPlan	66000	USD
CY2017	ccne	Expenses Related To Survivor Benefit Plan ExpensesRelatedToSurvivorBenefitPlan	89000	USD
CY2019Q4	ccne	Minimum Age For Participation In Benefit Plan MinimumAgeForParticipationInBenefitPlan	60	age
CY2019Q4	ccne	Minimum Service Period For Participation In Benefit Plan MinimumServicePeriodForParticipationInBenefitPlan	30	service
CY2018Q4	us-gaap	Defined Benefit Plan Benefit Obligation DefinedBenefitPlanBenefitObligation	2427000	USD
CY2017Q4	us-gaap	Defined Benefit Plan Benefit Obligation DefinedBenefitPlanBenefitObligation	2740000	USD
CY2016Q4	us-gaap	Defined Benefit Plan Benefit Obligation DefinedBenefitPlanBenefitObligation	3409000	USD
CY2019	us-gaap	Defined Benefit Plan Interest Cost DefinedBenefitPlanInterestCost	89000	USD
CY2018	us-gaap	Defined Benefit Plan Interest Cost DefinedBenefitPlanInterestCost	83000	USD
CY2017	us-gaap	Defined Benefit Plan Interest Cost DefinedBenefitPlanInterestCost	114000	USD
CY2019	us-gaap	Defined Benefit Plan Service Cost DefinedBenefitPlanServiceCost	74000	USD
CY2018	us-gaap	Defined Benefit Plan Service Cost DefinedBenefitPlanServiceCost	87000	USD
CY2017	us-gaap	Defined Benefit Plan Service Cost DefinedBenefitPlanServiceCost	103000	USD
CY2019	us-gaap	Defined Benefit Plan Benefit Obligation Benefits Paid DefinedBenefitPlanBenefitObligationBenefitsPaid	42000	USD
CY2018	us-gaap	Defined Benefit Plan Benefit Obligation Benefits Paid DefinedBenefitPlanBenefitObligationBenefitsPaid	79000	USD
CY2017	us-gaap	Defined Benefit Plan Benefit Obligation Benefits Paid DefinedBenefitPlanBenefitObligationBenefitsPaid	78000	USD
CY2019	us-gaap	Defined Benefit Plan Actuarial Gain Loss DefinedBenefitPlanActuarialGainLoss	518000	USD
CY2018	us-gaap	Defined Benefit Plan Actuarial Gain Loss DefinedBenefitPlanActuarialGainLoss	404000	USD
CY2017	us-gaap	Defined Benefit Plan Actuarial Gain Loss DefinedBenefitPlanActuarialGainLoss	808000	USD
CY2019Q4	us-gaap	Defined Benefit Plan Benefit Obligation DefinedBenefitPlanBenefitObligation	2030000	USD
CY2018Q4	us-gaap	Defined Benefit Plan Benefit Obligation DefinedBenefitPlanBenefitObligation	2427000	USD
CY2017Q4	us-gaap	Defined Benefit Plan Benefit Obligation DefinedBenefitPlanBenefitObligation	2740000	USD
CY2019Q4	us-gaap	Defined Benefit Plan Accumulated Other Comprehensive Income Net Gains Losses Before Tax DefinedBenefitPlanAccumulatedOtherComprehensiveIncomeNetGainsLossesBeforeTax	158000	USD
CY2018Q4	us-gaap	Defined Benefit Plan Accumulated Other Comprehensive Income Net Gains Losses Before Tax DefinedBenefitPlanAccumulatedOtherComprehensiveIncomeNetGainsLossesBeforeTax	-383000	USD
CY2019	ccne	Defined Benefit Plan Accumulated Other Comprehensive Income Tax Effect DefinedBenefitPlanAccumulatedOtherComprehensiveIncomeTaxEffect	34000	USD
CY2018	ccne	Defined Benefit Plan Accumulated Other Comprehensive Income Tax Effect DefinedBenefitPlanAccumulatedOtherComprehensiveIncomeTaxEffect	-79000	USD
CY2019Q4	us-gaap	Accumulated Other Comprehensive Income Loss Defined Benefit Pension And Other Postretirement Plans Net Of Tax AccumulatedOtherComprehensiveIncomeLossDefinedBenefitPensionAndOtherPostretirementPlansNetOfTax	124000	USD
CY2018Q4	us-gaap	Accumulated Other Comprehensive Income Loss Defined Benefit Pension And Other Postretirement Plans Net Of Tax AccumulatedOtherComprehensiveIncomeLossDefinedBenefitPensionAndOtherPostretirementPlansNetOfTax	-304000	USD
CY2019Q4	us-gaap	Defined Benefit Plan Accumulated Benefit Obligation DefinedBenefitPlanAccumulatedBenefitObligation	2030000	USD
CY2018Q4	us-gaap	Defined Benefit Plan Accumulated Benefit Obligation DefinedBenefitPlanAccumulatedBenefitObligation	2427000	USD
CY2019	us-gaap	Defined Benefit Plan Service Cost DefinedBenefitPlanServiceCost	74000	USD
CY2018	us-gaap	Defined Benefit Plan Service Cost DefinedBenefitPlanServiceCost	87000	USD
CY2017	us-gaap	Defined Benefit Plan Service Cost DefinedBenefitPlanServiceCost	103000	USD
CY2019	us-gaap	Defined Benefit Plan Interest Cost DefinedBenefitPlanInterestCost	89000	USD
CY2018	us-gaap	Defined Benefit Plan Interest Cost DefinedBenefitPlanInterestCost	83000	USD
CY2017	us-gaap	Defined Benefit Plan Interest Cost DefinedBenefitPlanInterestCost	114000	USD
CY2019	ccne	Net Amortization Of Transition Obligation And Actuarial Gain Loss NetAmortizationOfTransitionObligationAndActuarialGainLoss	23000	USD
CY2018	ccne	Net Amortization Of Transition Obligation And Actuarial Gain Loss NetAmortizationOfTransitionObligationAndActuarialGainLoss	84000	USD
CY2017	ccne	Net Amortization Of Transition Obligation And Actuarial Gain Loss NetAmortizationOfTransitionObligationAndActuarialGainLoss	192000	USD
CY2019	us-gaap	Defined Benefit Plan Net Periodic Benefit Cost DefinedBenefitPlanNetPeriodicBenefitCost	186000	USD
CY2018	us-gaap	Defined Benefit Plan Net Periodic Benefit Cost DefinedBenefitPlanNetPeriodicBenefitCost	254000	USD
CY2017	us-gaap	Defined Benefit Plan Net Periodic Benefit Cost DefinedBenefitPlanNetPeriodicBenefitCost	409000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Net Unamortized Gain Loss Arising During Period Before Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansNetUnamortizedGainLossArisingDuringPeriodBeforeTax	518000	USD
CY2018	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Net Unamortized Gain Loss Arising During Period Before Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansNetUnamortizedGainLossArisingDuringPeriodBeforeTax	404000	USD
CY2017	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Net Unamortized Gain Loss Arising During Period Before Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansNetUnamortizedGainLossArisingDuringPeriodBeforeTax	808000	USD
CY2019	us-gaap	Defined Benefit Plan Amortization Of Gains Losses DefinedBenefitPlanAmortizationOfGainsLosses	23000	USD
CY2018	us-gaap	Defined Benefit Plan Amortization Of Gains Losses DefinedBenefitPlanAmortizationOfGainsLosses	84000	USD
CY2017	us-gaap	Defined Benefit Plan Amortization Of Gains Losses DefinedBenefitPlanAmortizationOfGainsLosses	192000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Before Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentBeforeTax	-541000	USD
CY2018	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Before Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentBeforeTax	-488000	USD
CY2017	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Before Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentBeforeTax	-1000000	USD
CY2019	us-gaap	Amount Recognized In Net Periodic Benefit Cost And Other Comprehensive Income Loss Before Tax AmountRecognizedInNetPeriodicBenefitCostAndOtherComprehensiveIncomeLossBeforeTax	-355000	USD
CY2018	us-gaap	Amount Recognized In Net Periodic Benefit Cost And Other Comprehensive Income Loss Before Tax AmountRecognizedInNetPeriodicBenefitCostAndOtherComprehensiveIncomeLossBeforeTax	-234000	USD
CY2017	us-gaap	Amount Recognized In Net Periodic Benefit Cost And Other Comprehensive Income Loss Before Tax AmountRecognizedInNetPeriodicBenefitCostAndOtherComprehensiveIncomeLossBeforeTax	-591000	USD
CY2019Q4	us-gaap	Defined Benefit Plan Expected Amortization Next Fiscal Year DefinedBenefitPlanExpectedAmortizationNextFiscalYear	0	USD
CY2019	us-gaap	Defined Benefit Plan Assumptions Used Calculating Net Periodic Benefit Cost Discount Rate DefinedBenefitPlanAssumptionsUsedCalculatingNetPeriodicBenefitCostDiscountRate	0.0378
CY2018	us-gaap	Defined Benefit Plan Assumptions Used Calculating Net Periodic Benefit Cost Discount Rate DefinedBenefitPlanAssumptionsUsedCalculatingNetPeriodicBenefitCostDiscountRate	0.0313
CY2017	us-gaap	Defined Benefit Plan Assumptions Used Calculating Net Periodic Benefit Cost Discount Rate DefinedBenefitPlanAssumptionsUsedCalculatingNetPeriodicBenefitCostDiscountRate	0.0349
CY2019Q4	us-gaap	Defined Benefit Plan Assumptions Used Calculating Benefit Obligation Discount Rate DefinedBenefitPlanAssumptionsUsedCalculatingBenefitObligationDiscountRate	0.0259
CY2018Q4	us-gaap	Defined Benefit Plan Assumptions Used Calculating Benefit Obligation Discount Rate DefinedBenefitPlanAssumptionsUsedCalculatingBenefitObligationDiscountRate	0.0378
CY2017Q4	us-gaap	Defined Benefit Plan Assumptions Used Calculating Benefit Obligation Discount Rate DefinedBenefitPlanAssumptionsUsedCalculatingBenefitObligationDiscountRate	0.0313
CY2019Q4	us-gaap	Defined Benefit Plan Health Care Cost Trend Rate Assumed Next Fiscal Year DefinedBenefitPlanHealthCareCostTrendRateAssumedNextFiscalYear	0.050
CY2019	us-gaap	Defined Benefit Plan Effect Of One Percentage Point Increase On Accumulated Postretirement Benefit Obligation DefinedBenefitPlanEffectOfOnePercentagePointIncreaseOnAccumulatedPostretirementBenefitObligation	155000	USD
CY2019	us-gaap	Defined Benefit Plan Effect Of One Percentage Point Increase On Service And Interest Cost Components DefinedBenefitPlanEffectOfOnePercentagePointIncreaseOnServiceAndInterestCostComponents	10000	USD
CY2019	us-gaap	Defined Benefit Plan Effect Of One Percentage Point Decrease On Accumulated Postretirement Benefit Obligation1 DefinedBenefitPlanEffectOfOnePercentagePointDecreaseOnAccumulatedPostretirementBenefitObligation1	141000	USD
CY2019	us-gaap	Defined Benefit Plan Effect Of One Percentage Point Decrease On Service And Interest Cost Components1 DefinedBenefitPlanEffectOfOnePercentagePointDecreaseOnServiceAndInterestCostComponents1	9000	USD
CY2019	ccne	Amount Of Fees Or Compensation Deferred Plus Gains Or Net Of Losses Over Maximum Period AmountOfFeesOrCompensationDeferredPlusGainsOrNetOfLossesOverMaximumPeriod	P10Y
CY2018Q4	us-gaap	Deferred Compensation Liability Current And Noncurrent DeferredCompensationLiabilityCurrentAndNoncurrent	2408000	USD
CY2017Q4	us-gaap	Deferred Compensation Liability Current And Noncurrent DeferredCompensationLiabilityCurrentAndNoncurrent	2503000	USD
CY2016Q4	us-gaap	Deferred Compensation Liability Current And Noncurrent DeferredCompensationLiabilityCurrentAndNoncurrent	2080000	USD
CY2019	us-gaap	Deferred Compensation Arrangement With Individual Allocated Share Based Compensation Expense DeferredCompensationArrangementWithIndividualAllocatedShareBasedCompensationExpense	904000	USD
CY2018	us-gaap	Deferred Compensation Arrangement With Individual Allocated Share Based Compensation Expense DeferredCompensationArrangementWithIndividualAllocatedShareBasedCompensationExpense	64000	USD
CY2017	us-gaap	Deferred Compensation Arrangement With Individual Allocated Share Based Compensation Expense DeferredCompensationArrangementWithIndividualAllocatedShareBasedCompensationExpense	444000	USD
CY2019	ccne	Deferred Compensation Payments DeferredCompensationPayments	78000	USD
CY2018	ccne	Deferred Compensation Payments DeferredCompensationPayments	159000	USD
CY2017	ccne	Deferred Compensation Payments DeferredCompensationPayments	21000	USD
CY2019Q4	us-gaap	Deferred Compensation Liability Current And Noncurrent DeferredCompensationLiabilityCurrentAndNoncurrent	3234000	USD
CY2018Q4	us-gaap	Deferred Compensation Liability Current And Noncurrent DeferredCompensationLiabilityCurrentAndNoncurrent	2408000	USD
CY2017Q4	us-gaap	Deferred Compensation Liability Current And Noncurrent DeferredCompensationLiabilityCurrentAndNoncurrent	2503000	USD
CY2018Q1	ccne	Sales Tax Examination Excluding Penalties And Interest Accrued SalesTaxExaminationExcludingPenaltiesAndInterestAccrued	824000	USD
CY2018Q1	ccne	Sales Tax Examination Penalties And Interest Accrued SalesTaxExaminationPenaltiesAndInterestAccrued	339000	USD
CY2018Q1	ccne	Sales Tax Examination Liability Refund Adjustment From Settlement With Tax Authority SalesTaxExaminationLiabilityRefundAdjustmentFromSettlementWithTaxAuthority	1163000	USD
CY2018Q4	ccne	Sales Tax Contingent Liabilities SalesTaxContingentLiabilities	96000	USD
CY2018	ccne	Sales Tax Examination Payments SalesTaxExaminationPayments	50000	USD
CY2019Q3	ccne	Sales Tax Contingent Liabilities SalesTaxContingentLiabilities	150000	USD
CY2018Q1	ccne	Sales Tax Examination Liability Refund Adjustment From Settlement With Tax Authority SalesTaxExaminationLiabilityRefundAdjustmentFromSettlementWithTaxAuthority	1163000	USD
CY2019Q4	ccne	Sales Tax Examination Liability Refund Adjustment From Settlement With Tax Authority SalesTaxExaminationLiabilityRefundAdjustmentFromSettlementWithTaxAuthority	60000	USD
CY2019Q4	ccne	Sales Tax Examination Liability Refund Adjustmentfrom Settlementwith Tax Authority Interest SalesTaxExaminationLiabilityRefundAdjustmentfromSettlementwithTaxAuthorityInterest	5000	USD
CY2019	ccne	Sales Tax Examination Payments SalesTaxExaminationPayments	15000	USD
CY2019	ccne	Sales Tax Examination Reversed Expense SalesTaxExaminationReversedExpense	181000	USD
CY2019	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	8265000	USD
CY2018	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	7520000	USD
CY2017	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	8978000	USD
CY2019	ccne	Current State Tax Expense Benefit CurrentStateTaxExpenseBenefit	499000	USD
CY2018	ccne	Current State Tax Expense Benefit CurrentStateTaxExpenseBenefit	66000	USD
CY2017	ccne	Current State Tax Expense Benefit CurrentStateTaxExpenseBenefit	29000	USD
CY2019	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	-204000	USD
CY2018	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	-1076000	USD
CY2017	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	376000	USD
CY2019	us-gaap	Income Tax Reconciliation Change In Enacted Tax Rate IncomeTaxReconciliationChangeInEnactedTaxRate	0	USD
CY2018	us-gaap	Income Tax Reconciliation Change In Enacted Tax Rate IncomeTaxReconciliationChangeInEnactedTaxRate	0	USD
CY2017	us-gaap	Income Tax Reconciliation Change In Enacted Tax Rate IncomeTaxReconciliationChangeInEnactedTaxRate	3009000	USD
CY2019	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	8560000	USD
CY2018	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	6510000	USD
CY2017	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	12392000	USD
CY2019	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	10214000	USD
CY2019	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.210
CY2018	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	8448000	USD
CY2018	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.210
CY2017	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	12688000	USD
CY2017	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.350
CY2019	us-gaap	Income Tax Reconciliation Tax Exempt Income IncomeTaxReconciliationTaxExemptIncome	1382000	USD
CY2019	us-gaap	Effective Income Tax Rate Reconciliation Tax Exempt Income EffectiveIncomeTaxRateReconciliationTaxExemptIncome	0.028
CY2018	us-gaap	Income Tax Reconciliation Tax Exempt Income IncomeTaxReconciliationTaxExemptIncome	1403000	USD
CY2018	us-gaap	Effective Income Tax Rate Reconciliation Tax Exempt Income EffectiveIncomeTaxRateReconciliationTaxExemptIncome	0.035
CY2017	us-gaap	Income Tax Reconciliation Tax Exempt Income IncomeTaxReconciliationTaxExemptIncome	1899000	USD
CY2017	us-gaap	Effective Income Tax Rate Reconciliation Tax Exempt Income EffectiveIncomeTaxRateReconciliationTaxExemptIncome	0.052
CY2019	us-gaap	Income Tax Reconciliation Change In Enacted Tax Rate IncomeTaxReconciliationChangeInEnactedTaxRate	0	USD
CY2019	us-gaap	Effective Income Tax Rate Reconciliation Change In Enacted Tax Rate EffectiveIncomeTaxRateReconciliationChangeInEnactedTaxRate	0.000
CY2018	us-gaap	Income Tax Reconciliation Change In Enacted Tax Rate IncomeTaxReconciliationChangeInEnactedTaxRate	0	USD
CY2018	us-gaap	Effective Income Tax Rate Reconciliation Change In Enacted Tax Rate EffectiveIncomeTaxRateReconciliationChangeInEnactedTaxRate	0.000
CY2017	us-gaap	Income Tax Reconciliation Change In Enacted Tax Rate IncomeTaxReconciliationChangeInEnactedTaxRate	3009000	USD
CY2017	us-gaap	Effective Income Tax Rate Reconciliation Change In Enacted Tax Rate EffectiveIncomeTaxRateReconciliationChangeInEnactedTaxRate	0.083
CY2019	ccne	Effective Income Tax Rate Reconciliation Bank Owned Life Insurance Amount EffectiveIncomeTaxRateReconciliationBankOwnedLifeInsuranceAmount	276000	USD
CY2019	ccne	Effective Income Tax Rate Reconciliation Bank Owned Life Insurance Percent EffectiveIncomeTaxRateReconciliationBankOwnedLifeInsurancePercent	0.006
CY2018	ccne	Effective Income Tax Rate Reconciliation Bank Owned Life Insurance Amount EffectiveIncomeTaxRateReconciliationBankOwnedLifeInsuranceAmount	296000	USD
CY2018	ccne	Effective Income Tax Rate Reconciliation Bank Owned Life Insurance Percent EffectiveIncomeTaxRateReconciliationBankOwnedLifeInsurancePercent	0.007
CY2017	ccne	Effective Income Tax Rate Reconciliation Bank Owned Life Insurance Amount EffectiveIncomeTaxRateReconciliationBankOwnedLifeInsuranceAmount	581000	USD
CY2017	ccne	Effective Income Tax Rate Reconciliation Bank Owned Life Insurance Percent EffectiveIncomeTaxRateReconciliationBankOwnedLifeInsurancePercent	0.016
CY2019	us-gaap	Income Tax Reconciliation Other Adjustments IncomeTaxReconciliationOtherAdjustments	4000	USD
CY2019	us-gaap	Effective Income Tax Rate Reconciliation Other Adjustments EffectiveIncomeTaxRateReconciliationOtherAdjustments	0.000
CY2018	us-gaap	Income Tax Reconciliation Other Adjustments IncomeTaxReconciliationOtherAdjustments	-239000	USD
CY2018	us-gaap	Effective Income Tax Rate Reconciliation Other Adjustments EffectiveIncomeTaxRateReconciliationOtherAdjustments	-0.006
CY2017	us-gaap	Income Tax Reconciliation Other Adjustments IncomeTaxReconciliationOtherAdjustments	-825000	USD
CY2017	us-gaap	Effective Income Tax Rate Reconciliation Other Adjustments EffectiveIncomeTaxRateReconciliationOtherAdjustments	-0.023
CY2019	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	8560000	USD
CY2019	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.176
CY2018	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	6510000	USD
CY2018	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.162
CY2017	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	12392000	USD
CY2017	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.342
CY2017	us-gaap	Income Tax Reconciliation Change In Enacted Tax Rate IncomeTaxReconciliationChangeInEnactedTaxRate	3009000	USD
CY2019Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Provision For Loan Losses DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsProvisionForLoanLosses	4014000	USD
CY2018Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Provision For Loan Losses DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsProvisionForLoanLosses	3088000	USD
CY2019Q4	ccne	Deferred Tax Assets Fair Value Adjustments DeferredTaxAssetsFairValueAdjustments	854000	USD
CY2018Q4	ccne	Deferred Tax Assets Fair Value Adjustments DeferredTaxAssetsFairValueAdjustments	966000	USD
CY2019Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Employee Compensation DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsEmployeeCompensation	2405000	USD
CY2018Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Employee Compensation DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsEmployeeCompensation	2056000	USD
CY2019Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Postretirement Benefits DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsPostretirementBenefits	754000	USD
CY2018Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Postretirement Benefits DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsPostretirementBenefits	836000	USD
CY2019Q4	us-gaap	Deferred Tax Assets Derivative Instruments DeferredTaxAssetsDerivativeInstruments	102000	USD
CY2018Q4	us-gaap	Deferred Tax Assets Derivative Instruments DeferredTaxAssetsDerivativeInstruments	42000	USD
CY2019Q4	ccne	Deferred Tax Assets Nonaccrual Loan Interest DeferredTaxAssetsNonaccrualLoanInterest	557000	USD
CY2018Q4	ccne	Deferred Tax Assets Nonaccrual Loan Interest DeferredTaxAssetsNonaccrualLoanInterest	589000	USD
CY2019Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Accrued Liabilities DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAccruedLiabilities	1210000	USD
CY2018Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Accrued Liabilities DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAccruedLiabilities	1254000	USD
CY2019Q4	ccne	Deferred Tax Assets Deferred Fees And Costs DeferredTaxAssetsDeferredFeesAndCosts	472000	USD
CY2018Q4	ccne	Deferred Tax Assets Deferred Fees And Costs DeferredTaxAssetsDeferredFeesAndCosts	588000	USD
CY2019Q4	us-gaap	Deferred Tax Assets Unrealized Losses On Availablefor Sale Securities Gross DeferredTaxAssetsUnrealizedLossesOnAvailableforSaleSecuritiesGross	0	USD
CY2018Q4	us-gaap	Deferred Tax Assets Unrealized Losses On Availablefor Sale Securities Gross DeferredTaxAssetsUnrealizedLossesOnAvailableforSaleSecuritiesGross	940000	USD
CY2019Q4	ccne	Deferred Tax Assets Operating Lease Liability DeferredTaxAssetsOperatingLeaseLiability	4216000	USD
CY2018Q4	ccne	Deferred Tax Assets Operating Lease Liability DeferredTaxAssetsOperatingLeaseLiability	0	USD
CY2019Q4	us-gaap	Deferred Tax Assets Other DeferredTaxAssetsOther	381000	USD
CY2018Q4	us-gaap	Deferred Tax Assets Other DeferredTaxAssetsOther	366000	USD
CY2019Q4	us-gaap	Deferred Tax Assets Net DeferredTaxAssetsNet	14965000	USD
CY2018Q4	us-gaap	Deferred Tax Assets Net DeferredTaxAssetsNet	10725000	USD
CY2019Q4	ccne	Deferred Tax Liabilities Unrealized Gains On Available For Sale Securities Gross DeferredTaxLiabilitiesUnrealizedGainsOnAvailableForSaleSecuritiesGross	1913000	USD
CY2018Q4	ccne	Deferred Tax Liabilities Unrealized Gains On Available For Sale Securities Gross DeferredTaxLiabilitiesUnrealizedGainsOnAvailableForSaleSecuritiesGross	0	USD
CY2019Q4	us-gaap	Deferred Tax Liabilities Property Plant And Equipment DeferredTaxLiabilitiesPropertyPlantAndEquipment	2089000	USD
CY2018Q4	us-gaap	Deferred Tax Liabilities Property Plant And Equipment DeferredTaxLiabilitiesPropertyPlantAndEquipment	1459000	USD
CY2019Q4	us-gaap	Deferred Tax Liabilities Unrealized Gains On Trading Securities DeferredTaxLiabilitiesUnrealizedGainsOnTradingSecurities	340000	USD
CY2018Q4	us-gaap	Deferred Tax Liabilities Unrealized Gains On Trading Securities DeferredTaxLiabilitiesUnrealizedGainsOnTradingSecurities	63000	USD
CY2019Q4	ccne	Deferred Tax Liabilities Intangible Assets Specified Under Section DeferredTaxLiabilitiesIntangibleAssetsSpecifiedUnderSection	2305000	USD
CY2018Q4	ccne	Deferred Tax Liabilities Intangible Assets Specified Under Section DeferredTaxLiabilitiesIntangibleAssetsSpecifiedUnderSection	2414000	USD
CY2019Q4	ccne	Deferred Tax Liabilities Intangibles Mortgage Servicing Rights DeferredTaxLiabilitiesIntangiblesMortgageServicingRights	330000	USD
CY2018Q4	ccne	Deferred Tax Liabilities Intangibles Mortgage Servicing Rights DeferredTaxLiabilitiesIntangiblesMortgageServicingRights	314000	USD
CY2019Q4	ccne	Deferred Tax Liabilities Operating Lease Asset DeferredTaxLiabilitiesOperatingLeaseAsset	4136000	USD
CY2018Q4	ccne	Deferred Tax Liabilities Operating Lease Asset DeferredTaxLiabilitiesOperatingLeaseAsset	0	USD
CY2019Q4	us-gaap	Deferred Tax Liabilities Other DeferredTaxLiabilitiesOther	259000	USD
CY2018Q4	us-gaap	Deferred Tax Liabilities Other DeferredTaxLiabilitiesOther	178000	USD
CY2019Q4	us-gaap	Deferred Tax Liabilities DeferredTaxLiabilities	11372000	USD
CY2018Q4	us-gaap	Deferred Tax Liabilities DeferredTaxLiabilities	4428000	USD
CY2019Q4	us-gaap	Deferred Tax Assets Liabilities Net DeferredTaxAssetsLiabilitiesNet	3593000	USD
CY2018Q4	us-gaap	Deferred Tax Assets Liabilities Net DeferredTaxAssetsLiabilitiesNet	6297000	USD
CY2019Q4	us-gaap	Unrecognized Tax Benefits That Would Impact Effective Tax Rate UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate	0	USD
CY2019Q4	us-gaap	Income Tax Examination Penalties And Interest Accrued IncomeTaxExaminationPenaltiesAndInterestAccrued	0	USD
CY2019	us-gaap	Income Tax Examination Penalties And Interest Expense IncomeTaxExaminationPenaltiesAndInterestExpense	0	USD
CY2019	us-gaap	Payments To Fund Longterm Loans To Related Parties PaymentsToFundLongtermLoansToRelatedParties	9007000	USD
CY2019Q4	ccne	Related Party Transaction Due From To Related Party Net Change In Outstanding Balance RelatedPartyTransactionDueFromToRelatedPartyNetChangeInOutstandingBalance	28000	USD
CY2018Q4	us-gaap	Related Party Transaction Due From To Related Party RelatedPartyTransactionDueFromToRelatedParty	8596000	USD
CY2019Q4	us-gaap	Related Party Transaction Due From To Related Party RelatedPartyTransactionDueFromToRelatedParty	16337000	USD
CY2019	ccne	Payment Made To Related Parties PaymentMadeToRelatedParties	1294000	USD
CY2019Q4	ccne	Deposits Received From Related Parties DepositsReceivedFromRelatedParties	40931000	USD
CY2018Q4	ccne	Deposits Received From Related Parties DepositsReceivedFromRelatedParties	36214000	USD
CY2018Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Nonvested Number ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber	75889	shares
CY2018Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Nonvested Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue	20.79
CY2019	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Grants In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod	27128	shares
CY2019	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Grants In Period Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue	25.41
CY2019	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Forfeited In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod	2699	shares
CY2019	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Forfeitures Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresWeightedAverageGrantDateFairValue	24.85
CY2019	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Vested In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod	41948	shares
CY2019	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Vested In Period Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue	22.05
CY2019Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Nonvested Number ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber	58370	shares
CY2019Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Nonvested Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue	24.96
CY2019	us-gaap	Adjustments To Additional Paid In Capital Tax Effect From Share Based Compensation AdjustmentsToAdditionalPaidInCapitalTaxEffectFromShareBasedCompensation	283000	USD
CY2018	us-gaap	Adjustments To Additional Paid In Capital Tax Effect From Share Based Compensation AdjustmentsToAdditionalPaidInCapitalTaxEffectFromShareBasedCompensation	324000	USD
CY2017	us-gaap	Adjustments To Additional Paid In Capital Tax Effect From Share Based Compensation AdjustmentsToAdditionalPaidInCapitalTaxEffectFromShareBasedCompensation	325000	USD
CY2019Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Number Of Shares Available For Grant ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant	506483	shares
CY2015	ccne	Capital Conservation Buffer Phase In Ratio CapitalConservationBufferPhaseInRatio	0.000
CY2019	ccne	Capital Conservation Buffer Phase In Ratio CapitalConservationBufferPhaseInRatio	0.0250
CY2019	ccne	Capital Conservation Buffer Phase In Ratio CapitalConservationBufferPhaseInRatio	0.02500
CY2018	ccne	Capital Conservation Buffer Phase In Ratio CapitalConservationBufferPhaseInRatio	0.01875
CY2019	ccne	Number Of Capital Categories NumberOfCapitalCategories	5	category
CY2019	ccne	Number Of Events Resulting In Change In Banks Capital Category NumberOfEventsResultingInChangeInBanksCapitalCategory	0	event
CY2019Q4	us-gaap	Retained Earnings Unappropriated RetainedEarningsUnappropriated	51612000	USD
CY2019Q4	us-gaap	Fair Value Hedges At Fair Value Net FairValueHedgesAtFairValueNet	0	USD
CY2019	ccne	Accumulated Other Comprehensive Income Loss Estimated Reclassification Adjustment On Derivatives Included In Net Income In Next Twelve Months AccumulatedOtherComprehensiveIncomeLossEstimatedReclassificationAdjustmentOnDerivativesIncludedInNetIncomeInNextTwelveMonths	109000	USD
CY2019Q4	ccne	Cash Collateral Pledged CashCollateralPledged	2000000	USD
CY2018Q4	ccne	Cash Collateral Pledged CashCollateralPledged	750000	USD
CY2019	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	0	shares
CY2019	us-gaap	Net Income Loss NetIncomeLoss	40081000	USD
CY2018	us-gaap	Net Income Loss NetIncomeLoss	33719000	USD
CY2017	us-gaap	Net Income Loss NetIncomeLoss	23860000	USD
CY2019	ccne	Net Earnings Allocated To Participating Securities NetEarningsAllocatedToParticipatingSecurities	-147000	USD
CY2018	ccne	Net Earnings Allocated To Participating Securities NetEarningsAllocatedToParticipatingSecurities	-150000	USD
CY2017	ccne	Net Earnings Allocated To Participating Securities NetEarningsAllocatedToParticipatingSecurities	-135000	USD
CY2019	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	39934000	USD
CY2018	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	33569000	USD
CY2017	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	23725000	USD
CY2019	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	39934000	USD
CY2018	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	33569000	USD
CY2017	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	23725000	USD
CY2019	us-gaap	Weighted Average Basic Shares Outstanding Pro Forma WeightedAverageBasicSharesOutstandingProForma	15219000	shares
CY2018	us-gaap	Weighted Average Basic Shares Outstanding Pro Forma WeightedAverageBasicSharesOutstandingProForma	15274000	shares
CY2017	us-gaap	Weighted Average Basic Shares Outstanding Pro Forma WeightedAverageBasicSharesOutstandingProForma	15212000	shares
CY2019	ccne	Average Participating Securities AverageParticipatingSecurities	55000	shares
CY2018	ccne	Average Participating Securities AverageParticipatingSecurities	64000	shares
CY2017	ccne	Average Participating Securities AverageParticipatingSecurities	80000	shares
CY2019	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	15164000	shares
CY2018	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	15210000	shares
CY2017	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	15132000	shares
CY2019	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	2.63
CY2018	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	2.21
CY2017	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.57
CY2019	us-gaap	Net Income Loss Available To Common Stockholders Diluted NetIncomeLossAvailableToCommonStockholdersDiluted	39934000	USD
CY2018	us-gaap	Net Income Loss Available To Common Stockholders Diluted NetIncomeLossAvailableToCommonStockholdersDiluted	33569000	USD
CY2017	us-gaap	Net Income Loss Available To Common Stockholders Diluted NetIncomeLossAvailableToCommonStockholdersDiluted	23725000	USD
CY2019	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	15164000	shares
CY2018	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	15210000	shares
CY2017	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	15132000	shares
CY2019	us-gaap	Weighted Average Number Diluted Shares Outstanding Adjustment WeightedAverageNumberDilutedSharesOutstandingAdjustment	0	shares
CY2018	us-gaap	Weighted Average Number Diluted Shares Outstanding Adjustment WeightedAverageNumberDilutedSharesOutstandingAdjustment	0	shares
CY2017	us-gaap	Weighted Average Number Diluted Shares Outstanding Adjustment WeightedAverageNumberDilutedSharesOutstandingAdjustment	0	shares
CY2019	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	15164000	shares
CY2018	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	15210000	shares
CY2017	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	15132000	shares
CY2019	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	2.63
CY2018	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	2.21
CY2017	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.57
CY2019	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	10935000	USD
CY2018	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-3653000	USD
CY2017	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	15000	USD
CY2019Q1	us-gaap	Interest And Dividend Income Operating InterestAndDividendIncomeOperating	36753000	USD
CY2019Q2	us-gaap	Interest And Dividend Income Operating InterestAndDividendIncomeOperating	38282000	USD
CY2019Q3	us-gaap	Interest And Dividend Income Operating InterestAndDividendIncomeOperating	40085000	USD
CY2019Q4	us-gaap	Interest And Dividend Income Operating InterestAndDividendIncomeOperating	40608000	USD
CY2018Q1	us-gaap	Interest And Dividend Income Operating InterestAndDividendIncomeOperating	29387000	USD
CY2018Q2	us-gaap	Interest And Dividend Income Operating InterestAndDividendIncomeOperating	32099000	USD
CY2018Q3	us-gaap	Interest And Dividend Income Operating InterestAndDividendIncomeOperating	34040000	USD
CY2018Q4	us-gaap	Interest And Dividend Income Operating InterestAndDividendIncomeOperating	36344000	USD
CY2019Q1	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	27758000	USD
CY2019Q2	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	28794000	USD
CY2019Q3	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	29901000	USD
CY2019Q4	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	29745000	USD
CY2018Q1	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	24100000	USD
CY2018Q2	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	25826000	USD
CY2018Q3	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	26878000	USD
CY2018Q4	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	28116000	USD
CY2019Q1	us-gaap	Provision For Loan And Lease Losses ProvisionForLoanAndLeaseLosses	1306000	USD
CY2019Q2	us-gaap	Provision For Loan And Lease Losses ProvisionForLoanAndLeaseLosses	1788000	USD
CY2019Q3	us-gaap	Provision For Loan And Lease Losses ProvisionForLoanAndLeaseLosses	2118000	USD
CY2018Q1	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.46
CY2018Q2	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.55
CY2018Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.60
CY2018Q4	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.59
CY2019	ccne	Service Charges On Deposit Accounts ServiceChargesOnDepositAccounts	6402000	USD
CY2018	ccne	Service Charges On Deposit Accounts ServiceChargesOnDepositAccounts	5759000	USD
CY2017	ccne	Service Charges On Deposit Accounts ServiceChargesOnDepositAccounts	4809000	USD
CY2019	us-gaap	Investment Banking Advisory Brokerage And Underwriting Fees And Commissions InvestmentBankingAdvisoryBrokerageAndUnderwritingFeesAndCommissions	4627000	USD
CY2018	us-gaap	Investment Banking Advisory Brokerage And Underwriting Fees And Commissions InvestmentBankingAdvisoryBrokerageAndUnderwritingFeesAndCommissions	4172000	USD
CY2017	us-gaap	Investment Banking Advisory Brokerage And Underwriting Fees And Commissions InvestmentBankingAdvisoryBrokerageAndUnderwritingFeesAndCommissions	3724000	USD
CY2019	ccne	Mortgage Banking MortgageBanking	1412000	USD
CY2018	ccne	Mortgage Banking MortgageBanking	1019000	USD
CY2017	ccne	Mortgage Banking MortgageBanking	906000	USD
CY2019Q4	us-gaap	Provision For Loan And Lease Losses ProvisionForLoanAndLeaseLosses	812000	USD
CY2018Q1	us-gaap	Provision For Loan And Lease Losses ProvisionForLoanAndLeaseLosses	1631000	USD
CY2018Q2	us-gaap	Provision For Loan And Lease Losses ProvisionForLoanAndLeaseLosses	1905000	USD
CY2018Q3	us-gaap	Provision For Loan And Lease Losses ProvisionForLoanAndLeaseLosses	1095000	USD
CY2018Q4	us-gaap	Provision For Loan And Lease Losses ProvisionForLoanAndLeaseLosses	1441000	USD
CY2019Q1	us-gaap	Noninterest Income NoninterestIncome	6153000	USD
CY2019Q2	us-gaap	Noninterest Income NoninterestIncome	6792000	USD
CY2019Q3	us-gaap	Noninterest Income NoninterestIncome	6276000	USD
CY2019Q4	us-gaap	Noninterest Income NoninterestIncome	6754000	USD
CY2018Q1	us-gaap	Noninterest Income NoninterestIncome	4751000	USD
CY2018Q2	us-gaap	Noninterest Income NoninterestIncome	5606000	USD
CY2018Q3	us-gaap	Noninterest Income NoninterestIncome	5933000	USD
CY2018Q4	us-gaap	Noninterest Income NoninterestIncome	4433000	USD
CY2019Q1	us-gaap	Noninterest Expense NoninterestExpense	21175000	USD
CY2019Q2	us-gaap	Noninterest Expense NoninterestExpense	21984000	USD
CY2019Q3	us-gaap	Noninterest Expense NoninterestExpense	21444000	USD
CY2019Q4	us-gaap	Noninterest Expense NoninterestExpense	22905000	USD
CY2018Q1	us-gaap	Noninterest Expense NoninterestExpense	18999000	USD
CY2018Q2	us-gaap	Noninterest Expense NoninterestExpense	19543000	USD
CY2018Q3	us-gaap	Noninterest Expense NoninterestExpense	20794000	USD
CY2018Q4	us-gaap	Noninterest Expense NoninterestExpense	20006000	USD
CY2019Q1	us-gaap	Net Income Loss NetIncomeLoss	9473000	USD
CY2019Q2	us-gaap	Net Income Loss NetIncomeLoss	9767000	USD
CY2019Q3	us-gaap	Net Income Loss NetIncomeLoss	10357000	USD
CY2019Q4	us-gaap	Net Income Loss NetIncomeLoss	10484000	USD
CY2018Q1	us-gaap	Net Income Loss NetIncomeLoss	7097000	USD
CY2018Q2	us-gaap	Net Income Loss NetIncomeLoss	8441000	USD
CY2018Q3	us-gaap	Net Income Loss NetIncomeLoss	9236000	USD
CY2018Q4	us-gaap	Net Income Loss NetIncomeLoss	8945000	USD
CY2019Q1	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.62
CY2019Q2	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.64
CY2019Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.68
CY2019Q4	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.69
CY2018Q1	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.46
CY2018Q2	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.55
CY2018Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.60
CY2018Q4	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.59
CY2019Q1	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.62
CY2019Q2	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.64
CY2019Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.68
CY2019Q4	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.69
CY2017	us-gaap	Debt Securities Available For Sale Realized Gain Loss DebtSecuritiesAvailableForSaleRealizedGainLoss	1543000	USD
CY2019	ccne	Noninterest Income Other Income Not Separately Disclosed NoninterestIncomeOtherIncomeNotSeparatelyDisclosed	8745000	USD
CY2019	ccne	Card Processing And Interchange Income CardProcessingAndInterchangeIncome	4641000	USD
CY2018	ccne	Card Processing And Interchange Income CardProcessingAndInterchangeIncome	4261000	USD
CY2017	ccne	Card Processing And Interchange Income CardProcessingAndInterchangeIncome	3763000	USD
CY2019	us-gaap	Debt Securities Available For Sale Realized Gain Loss DebtSecuritiesAvailableForSaleRealizedGainLoss	148000	USD
CY2018	us-gaap	Debt Securities Available For Sale Realized Gain Loss DebtSecuritiesAvailableForSaleRealizedGainLoss	0	USD
CY2018	ccne	Noninterest Income Other Income Not Separately Disclosed NoninterestIncomeOtherIncomeNotSeparatelyDisclosed	5512000	USD
CY2017	ccne	Noninterest Income Other Income Not Separately Disclosed NoninterestIncomeOtherIncomeNotSeparatelyDisclosed	6690000	USD
CY2019	us-gaap	Noninterest Income NoninterestIncome	25975000	USD
CY2018	us-gaap	Noninterest Income NoninterestIncome	20723000	USD
CY2017	us-gaap	Noninterest Income NoninterestIncome	21435000	USD

Files In Submission

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$CCNE
CNB FINANCIAL CORP/PA Stock $ccne

2019 Form 10-K Financial Statement

#000073677220000011 Filed on March 05, 2020

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$CCNE CNB FINANCIAL CORP/PA Stock $ccne

2019 Form 10-K Financial Statement

#000073677220000011 Filed on March 05, 2020

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$CCNE
CNB FINANCIAL CORP/PA Stock $ccne