XML 115 R125.htm IDEA: XBRL DOCUMENT v2.4.1.9

Fair Value - Quantitative Information about Level 3 Fair Value Measurements for Financial Instruments Measured at Fair Value on Non Recurring Basis (Detail) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013
Impaired Loans - Commercial Mortgages [Member] | Sales Comparison Valuation Technique [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Fair value	$ 2,353us-gaap_AssetsFairValueDisclosureNonrecurring / us-gaap_FairValueByAssetClassAxis = ccne_ImpairedLoansCommercialMortgagesMember / us-gaap_ValuationTechniqueAxis = ccne_SalesComparisonValuationTechniqueMember	$ 3,000us-gaap_AssetsFairValueDisclosureNonrecurring / us-gaap_FairValueByAssetClassAxis = ccne_ImpairedLoansCommercialMortgagesMember / us-gaap_ValuationTechniqueAxis = ccne_SalesComparisonValuationTechniqueMember
Impaired Loans - Commercial, Industrial, and Agricultural [Member] | Sales Comparison Valuation Technique [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Fair value	2,820us-gaap_AssetsFairValueDisclosureNonrecurring / us-gaap_FairValueByAssetClassAxis = ccne_ImpairedLoansCommercialIndustrialAndAgriculturalMember / us-gaap_ValuationTechniqueAxis = ccne_SalesComparisonValuationTechniqueMember	3,274us-gaap_AssetsFairValueDisclosureNonrecurring / us-gaap_FairValueByAssetClassAxis = ccne_ImpairedLoansCommercialIndustrialAndAgriculturalMember / us-gaap_ValuationTechniqueAxis = ccne_SalesComparisonValuationTechniqueMember
Impaired Loans - Commercial, Industrial, and Agricultural [Member] | Income Approach Valuation Technique [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Fair value		$ 432us-gaap_AssetsFairValueDisclosureNonrecurring / us-gaap_FairValueByAssetClassAxis = ccne_ImpairedLoansCommercialIndustrialAndAgriculturalMember / us-gaap_ValuationTechniqueAxis = us-gaap_IncomeApproachValuationTechniqueMember
Maximum [Member] | Impaired Loans - Commercial Mortgages [Member] | Sales Comparison Valuation Technique [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Sales comparison approach	100.00%ccne_FairValueValuationTechniquesNegativeAdjustmentsForMarketConditions / us-gaap_FairValueByAssetClassAxis = ccne_ImpairedLoansCommercialMortgagesMember / us-gaap_RangeAxis = us-gaap_MaximumMember / us-gaap_ValuationTechniqueAxis = ccne_SalesComparisonValuationTechniqueMember	61.00%ccne_FairValueValuationTechniquesNegativeAdjustmentsForMarketConditions / us-gaap_FairValueByAssetClassAxis = ccne_ImpairedLoansCommercialMortgagesMember / us-gaap_RangeAxis = us-gaap_MaximumMember / us-gaap_ValuationTechniqueAxis = ccne_SalesComparisonValuationTechniqueMember
Maximum [Member] | Impaired Loans - Commercial, Industrial, and Agricultural [Member] | Sales Comparison Valuation Technique [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Sales comparison approach	49.00%ccne_FairValueValuationTechniquesNegativeAdjustmentsForMarketConditions / us-gaap_FairValueByAssetClassAxis = ccne_ImpairedLoansCommercialIndustrialAndAgriculturalMember / us-gaap_RangeAxis = us-gaap_MaximumMember / us-gaap_ValuationTechniqueAxis = ccne_SalesComparisonValuationTechniqueMember	9.00%ccne_FairValueValuationTechniquesNegativeAdjustmentsForMarketConditions / us-gaap_FairValueByAssetClassAxis = ccne_ImpairedLoansCommercialIndustrialAndAgriculturalMember / us-gaap_RangeAxis = us-gaap_MaximumMember / us-gaap_ValuationTechniqueAxis = ccne_SalesComparisonValuationTechniqueMember
Maximum [Member] | Impaired Loans - Commercial, Industrial, and Agricultural [Member] | Income Approach Valuation Technique [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Income approach		2.00%ccne_FairValueValuationTechniquesChangesInOperatingIncomeExpectations / us-gaap_FairValueByAssetClassAxis = ccne_ImpairedLoansCommercialIndustrialAndAgriculturalMember / us-gaap_RangeAxis = us-gaap_MaximumMember / us-gaap_ValuationTechniqueAxis = us-gaap_IncomeApproachValuationTechniqueMember
Minimum [Member] | Impaired Loans - Commercial Mortgages [Member] | Sales Comparison Valuation Technique [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Sales comparison approach	34.00%ccne_FairValueValuationTechniquesNegativeAdjustmentsForMarketConditions / us-gaap_FairValueByAssetClassAxis = ccne_ImpairedLoansCommercialMortgagesMember / us-gaap_RangeAxis = us-gaap_MinimumMember / us-gaap_ValuationTechniqueAxis = ccne_SalesComparisonValuationTechniqueMember	17.00%ccne_FairValueValuationTechniquesNegativeAdjustmentsForMarketConditions / us-gaap_FairValueByAssetClassAxis = ccne_ImpairedLoansCommercialMortgagesMember / us-gaap_RangeAxis = us-gaap_MinimumMember / us-gaap_ValuationTechniqueAxis = ccne_SalesComparisonValuationTechniqueMember
Minimum [Member] | Impaired Loans - Commercial, Industrial, and Agricultural [Member] | Sales Comparison Valuation Technique [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Sales comparison approach	8.00%ccne_FairValueValuationTechniquesNegativeAdjustmentsForMarketConditions / us-gaap_FairValueByAssetClassAxis = ccne_ImpairedLoansCommercialIndustrialAndAgriculturalMember / us-gaap_RangeAxis = us-gaap_MinimumMember / us-gaap_ValuationTechniqueAxis = ccne_SalesComparisonValuationTechniqueMember
Weighted Average [Member] | Impaired Loans - Commercial Mortgages [Member] | Sales Comparison Valuation Technique [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Sales comparison approach	(44.00%)ccne_FairValueValuationTechniquesNegativeAdjustmentsForMarketConditions / us-gaap_FairValueByAssetClassAxis = ccne_ImpairedLoansCommercialMortgagesMember / us-gaap_RangeAxis = us-gaap_WeightedAverageMember / us-gaap_ValuationTechniqueAxis = ccne_SalesComparisonValuationTechniqueMember	(22.00%)ccne_FairValueValuationTechniquesNegativeAdjustmentsForMarketConditions / us-gaap_FairValueByAssetClassAxis = ccne_ImpairedLoansCommercialMortgagesMember / us-gaap_RangeAxis = us-gaap_WeightedAverageMember / us-gaap_ValuationTechniqueAxis = ccne_SalesComparisonValuationTechniqueMember
Weighted Average [Member] | Impaired Loans - Commercial, Industrial, and Agricultural [Member] | Sales Comparison Valuation Technique [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Sales comparison approach	(13.00%)ccne_FairValueValuationTechniquesNegativeAdjustmentsForMarketConditions / us-gaap_FairValueByAssetClassAxis = ccne_ImpairedLoansCommercialIndustrialAndAgriculturalMember / us-gaap_RangeAxis = us-gaap_WeightedAverageMember / us-gaap_ValuationTechniqueAxis = ccne_SalesComparisonValuationTechniqueMember

X

- Definition

Fair value valuation techniques changes in operating income expectations.

+ References

No definition available.

+ Details

Name:	ccne_FairValueValuationTechniquesChangesInOperatingIncomeExpectations
Namespace Prefix:	ccne_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

X

- Definition

Fair value valuation techniques negative adjustments for market conditions.

+ References

No definition available.

+ Details

Name:	ccne_FairValueValuationTechniquesNegativeAdjustmentsForMarketConditions
Namespace Prefix:	ccne_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

X

- Definition

This element represents the aggregate of the assets reported on the balance sheet at period end measured at fair value on a nonrecurring basis by the entity. This element is intended to be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements.

+ References

No definition available.

+ Details

Name:	us-gaap_AssetsFairValueDisclosureNonrecurring
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

X

- Details

Name:	us-gaap_FairValueInputsAssetsQuantitativeInformationLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Details

Name:	us-gaap_FairValueByAssetClassAxis=ccne_ImpairedLoansCommercialIndustrialAndAgriculturalMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_FairValueByAssetClassAxis=ccne_ImpairedLoansCommercialMortgagesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_RangeAxis=us-gaap_MaximumMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_RangeAxis=us-gaap_MinimumMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_RangeAxis=us-gaap_WeightedAverageMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: