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v2.4.1.9

Parent Company Only Financial Information - Condensed Statements of Cash Flows (Detail) (USD $) In Thousands, unless otherwise specified | 12 Months Ended | 1 Months Ended
--- | --- | ---
Dec. 31, 2014 | Dec. 31, 2013 | Dec. 31, 2012 | Dec. 31, 2014 | Dec. 31, 2013 | Dec. 31, 2012
Condensed Financial Statements, Captions [Line Items] |  |  |  |  |  |
Net income | $ 23,074 us-gaap_NetIncomeLoss | $ 16,679 us-gaap_NetIncomeLoss | $ 17,136 us-gaap_NetIncomeLoss |  |  |
Adjustments to reconcile net income to net cash provided by operating activities: |  |  |  |  |  |
Net unrealized (gains) losses on trading securities | (121)us-gaap_NetRealizedOrUnrealizedGainLossOnTradingSecurities | (728)us-gaap_NetRealizedOrUnrealizedGainLossOnTradingSecurities | (564)us-gaap_NetRealizedOrUnrealizedGainLossOnTradingSecurities |  |  |
Decrease (increase) in other assets | 6,266 us-gaap_IncreaseDecreaseInOtherOperatingAssets | (3,124)us-gaap_IncreaseDecreaseInOtherOperatingAssets | (455)us-gaap_IncreaseDecreaseInOtherOperatingAssets |  |  |
Increase in other liabilities | (6,605)us-gaap_IncreaseDecreaseInOtherOperatingLiabilities | 8,387 us-gaap_IncreaseDecreaseInOtherOperatingLiabilities | 2,523 us-gaap_IncreaseDecreaseInOtherOperatingLiabilities |  |  |
Net Cash Provided By Operating Activities | 28,920 us-gaap_NetCashProvidedByUsedInOperatingActivities | 33,609 us-gaap_NetCashProvidedByUsedInOperatingActivities | 27,560 us-gaap_NetCashProvidedByUsedInOperatingActivities |  |  |
Cash flows from investing activities | (55,526)us-gaap_NetCashProvidedByUsedInInvestingActivities | (36,452)us-gaap_NetCashProvidedByUsedInInvestingActivities | (182,620)us-gaap_NetCashProvidedByUsedInInvestingActivities |  |  |
Cash Flows From Financing Activities: |  |  |  |  |  |
Dividends paid | (9,521)us-gaap_PaymentsOfDividends | (8,573)us-gaap_PaymentsOfDividends | (8,214)us-gaap_PaymentsOfDividends |  |  |
Purchase of treasury stock | (1,675)ccne_PaymentsForPurchaseOfTreasuryStock | 0 ccne_PaymentsForPurchaseOfTreasuryStock | 0 ccne_PaymentsForPurchaseOfTreasuryStock |  |  |
Net Cash Provided By Financing Activities | 24,901 us-gaap_NetCashProvidedByUsedInFinancingActivities | 595 us-gaap_NetCashProvidedByUsedInFinancingActivities | 147,238 us-gaap_NetCashProvidedByUsedInFinancingActivities |  |  |
Net increase (decrease) in cash | (1,705)us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease | (2,248)us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease | (7,822)us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease |  |  |
Cash and Cash Equivalents, Beginning | 29,633 us-gaap_CashAndCashEquivalentsAtCarryingValue | 31,881 us-gaap_CashAndCashEquivalentsAtCarryingValue | 39,703 us-gaap_CashAndCashEquivalentsAtCarryingValue |  |  |
Cash and Cash Equivalents, Ending | 27,928 us-gaap_CashAndCashEquivalentsAtCarryingValue | 29,633 us-gaap_CashAndCashEquivalentsAtCarryingValue | 31,881 us-gaap_CashAndCashEquivalentsAtCarryingValue | 27,928 us-gaap_CashAndCashEquivalentsAtCarryingValue | 29,633 us-gaap_CashAndCashEquivalentsAtCarryingValue | 31,881 us-gaap_CashAndCashEquivalentsAtCarryingValue
Parent Company [Member] |  |  |  |  |  |
Condensed Financial Statements, Captions [Line Items] |  |  |  |  |  |
Net income | 23,074 us-gaap_NetIncomeLoss / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | 16,679 us-gaap_NetIncomeLoss / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | 17,136 us-gaap_NetIncomeLoss / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | 23,074 us-gaap_NetIncomeLoss / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | 16,679 us-gaap_NetIncomeLoss / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | 17,136 us-gaap_NetIncomeLoss / dei_LegalEntityAxis = us-gaap_ParentCompanyMember
Adjustments to reconcile net income to net cash provided by operating activities: |  |  |  |  |  |
Equity in undistributed net income of bank subsidiary | (12,327)ccne_EquityInUndistributedNetIncomeOfBankSubsidiary / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | (14,080)ccne_EquityInUndistributedNetIncomeOfBankSubsidiary / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | (8,682)ccne_EquityInUndistributedNetIncomeOfBankSubsidiary / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | (12,327)ccne_EquityInUndistributedNetIncomeOfBankSubsidiary / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | (14,080)ccne_EquityInUndistributedNetIncomeOfBankSubsidiary / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | (8,682)ccne_EquityInUndistributedNetIncomeOfBankSubsidiary / dei_LegalEntityAxis = us-gaap_ParentCompanyMember
Equity in undistributed (net income) loss of non-bank subsidiaries | (949)ccne_EquityInUndistributedNetIncomeLossOfNonBankSubsidiaries / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | 5,135 ccne_EquityInUndistributedNetIncomeLossOfNonBankSubsidiaries / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | (1,275)ccne_EquityInUndistributedNetIncomeLossOfNonBankSubsidiaries / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | (949)ccne_EquityInUndistributedNetIncomeLossOfNonBankSubsidiaries / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | 5,135 ccne_EquityInUndistributedNetIncomeLossOfNonBankSubsidiaries / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | (1,275)ccne_EquityInUndistributedNetIncomeLossOfNonBankSubsidiaries / dei_LegalEntityAxis = us-gaap_ParentCompanyMember
Net unrealized (gains) losses on trading securities |  |  |  | 1 us-gaap_NetRealizedOrUnrealizedGainLossOnTradingSecurities / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | (47)us-gaap_NetRealizedOrUnrealizedGainLossOnTradingSecurities / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | (54)us-gaap_NetRealizedOrUnrealizedGainLossOnTradingSecurities / dei_LegalEntityAxis = us-gaap_ParentCompanyMember
Decrease (increase) in other assets |  |  |  | (13)us-gaap_IncreaseDecreaseInOtherOperatingAssets / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | 112 us-gaap_IncreaseDecreaseInOtherOperatingAssets / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | 47 us-gaap_IncreaseDecreaseInOtherOperatingAssets / dei_LegalEntityAxis = us-gaap_ParentCompanyMember
Increase in other liabilities |  |  |  | 601 us-gaap_IncreaseDecreaseInOtherOperatingLiabilities / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | 384 us-gaap_IncreaseDecreaseInOtherOperatingLiabilities / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | 385 us-gaap_IncreaseDecreaseInOtherOperatingLiabilities / dei_LegalEntityAxis = us-gaap_ParentCompanyMember
Net Cash Provided By Operating Activities |  |  |  | 10,387 us-gaap_NetCashProvidedByUsedInOperatingActivities / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | 8,183 us-gaap_NetCashProvidedByUsedInOperatingActivities / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | 7,557 us-gaap_NetCashProvidedByUsedInOperatingActivities / dei_LegalEntityAxis = us-gaap_ParentCompanyMember
Cash flows from investing activities |  |  |  | 0 us-gaap_NetCashProvidedByUsedInInvestingActivities / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | 0 us-gaap_NetCashProvidedByUsedInInvestingActivities / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | 0 us-gaap_NetCashProvidedByUsedInInvestingActivities / dei_LegalEntityAxis = us-gaap_ParentCompanyMember
Cash Flows From Financing Activities: |  |  |  |  |  |
Dividends paid |  |  |  | (9,521)us-gaap_PaymentsOfDividends / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | (8,573)us-gaap_PaymentsOfDividends / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | (8,214)us-gaap_PaymentsOfDividends / dei_LegalEntityAxis = us-gaap_ParentCompanyMember
Purchase of treasury stock |  |  |  | (1,675)ccne_PaymentsForPurchaseOfTreasuryStock / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | 0 ccne_PaymentsForPurchaseOfTreasuryStock / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | 0 ccne_PaymentsForPurchaseOfTreasuryStock / dei_LegalEntityAxis = us-gaap_ParentCompanyMember
Net proceeds from sale of treasury stock and option exercises |  |  |  | 587 ccne_ProceedsFromSaleOfTreasuryStockAndOptionExercisesIncludingTaxBenefit / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | 739 ccne_ProceedsFromSaleOfTreasuryStockAndOptionExercisesIncludingTaxBenefit / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | 950 ccne_ProceedsFromSaleOfTreasuryStockAndOptionExercisesIncludingTaxBenefit / dei_LegalEntityAxis = us-gaap_ParentCompanyMember
Net advance to subsidiary |  |  |  | 0 ccne_NetAdvanceFromSubsidiary / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | (600)ccne_NetAdvanceFromSubsidiary / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | (200)ccne_NetAdvanceFromSubsidiary / dei_LegalEntityAxis = us-gaap_ParentCompanyMember
Net Cash Provided By Financing Activities |  |  |  | (10,609)us-gaap_NetCashProvidedByUsedInFinancingActivities / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | (8,434)us-gaap_NetCashProvidedByUsedInFinancingActivities / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | (7,464)us-gaap_NetCashProvidedByUsedInFinancingActivities / dei_LegalEntityAxis = us-gaap_ParentCompanyMember
Net increase (decrease) in cash |  |  |  | (222)us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | (251)us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | 93 us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease / dei_LegalEntityAxis = us-gaap_ParentCompanyMember
Cash and Cash Equivalents, Beginning | 1,778 us-gaap_CashAndCashEquivalentsAtCarryingValue / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | 2,029 us-gaap_CashAndCashEquivalentsAtCarryingValue / dei_LegalEntityAxis = us-gaap_ParentCompanyMember |  | 1,778 us-gaap_CashAndCashEquivalentsAtCarryingValue / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | 2,029 us-gaap_CashAndCashEquivalentsAtCarryingValue / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | 1,936 us-gaap_CashAndCashEquivalentsAtCarryingValue / dei_LegalEntityAxis = us-gaap_ParentCompanyMember
Cash and Cash Equivalents, Ending | $ 1,556 us-gaap_CashAndCashEquivalentsAtCarryingValue / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | $ 1,778 us-gaap_CashAndCashEquivalentsAtCarryingValue / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | $ 2,029 us-gaap_CashAndCashEquivalentsAtCarryingValue / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | $ 1,556 us-gaap_CashAndCashEquivalentsAtCarryingValue / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | $ 1,778 us-gaap_CashAndCashEquivalentsAtCarryingValue / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | $ 2,029 us-gaap_CashAndCashEquivalentsAtCarryingValue / dei_LegalEntityAxis = us-gaap_ParentCompanyMember

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