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Derivative Instruments and Hedging Activities (Detail) (USD $) In Thousands, unless otherwise specified |  |  | 1 Months Ended
--- | --- | --- | ---
Dec. 31, 2013 | Dec. 31, 2012 | Oct. 31, 2013 Interest Rate Swap Agreement
Derivative [Line Items] |  |  |
Interest rate swap agreement, term |  |  | 10 years
Notional amount | $ 11,690 | $ 14,841 | $ 3,500

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- Definition Aggregate notional amount specified by the derivative(s). Expressed as an absolute value. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Article 12 -Section 13 -Sentence Column B + Details
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- Details
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Period Type: | duration

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- Definition Period the derivative contract is outstanding, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References No definition available. + Details
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