XML 67 R61.htm IDEA: XBRL DOCUMENT
v2.4.0.8

Securities - Additional Information (Detail) (USD $) In Thousands, unless otherwise specified | 12 Months Ended
--- | ---
Dec. 31, 2013 Securities | Dec. 31, 2012 Securities | Dec. 31, 2011
Amortized Cost And Fair Value Debt Securities [Abstract] |  |  |
Number of securities holdings | 0 | 0 |
Shareholders' equity percentage | 10.00% | 10.00% |
Securities | $ 353,102 | $ 264,813 |
Tax provision related to net realized gains | 124 | 483 | 215
Proceeds from sale of trading securities | 5,811 | 3,386 | 343
Net gain from proceeds of sale of trading securities | $ 579 | $ 298 | $ 30

X
- Details
Name: | ccne_AmortizedCostAndFairValueDebtSecuritiesAbstract
Namespace Prefix: | ccne_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Number of securities holdings. + References No definition available. + Details
Name: | ccne_NumberOfSecuritiesHoldings
Namespace Prefix: | ccne_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

X
- Definition Shareholders equity percentage. + References No definition available. + Details
Name: | ccne_ShareholdersEquityPercentage
Namespace Prefix: | ccne_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Tax provision related to net realized gains. + References No definition available. + Details
Name: | ccne_TaxProvisionRelatedToNetRealizedGains
Namespace Prefix: | ccne_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Cash received from sale of investments in debt and equity securities, classified as operating activities, during the period; includes trading securities and any other investments classified as operating. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 25 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3536-108585 + Details
Name: | us-gaap_ProceedsFromSaleOfSecuritiesOperatingActivities
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition The fair value of trading securities that serve as collateral for borrowings. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=28368275&loc=d3e5086-111524 + Details
Name: | us-gaap_TradingSecuritiesPledgedAsCollateral
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition This item represents the gain (loss) realized during the period from the sale of trading securities. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 7 -Subparagraph c -Article 5 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.7(c)) -URI http://asc.fasb.org/extlink&oid=26872669&loc=d3e20235-122688 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Trading Securities -URI http://asc.fasb.org/extlink&oid=6526789 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 9 -Subparagraph (e) -URI http://asc.fasb.org/extlink&oid=27724398&loc=d3e27357-111563 + Details
Name: | us-gaap_TradingSecuritiesRealizedGainLoss
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration