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Quantitative Information about Level 3 Fair Value Measurements (Detail) (USD $) In Thousands, unless otherwise specified |  |  | 12 Months Ended
--- | --- | --- | ---
Dec. 31, 2013 | Dec. 31, 2012 | Dec. 31, 2013 Discounted Cash Flow [Member] Unobservable Inputs (Level 3) [Member] Derivative Financial Instruments, Liabilities [Member] Minimum | Dec. 31, 2013 Discounted Cash Flow [Member] Unobservable Inputs (Level 3) [Member] Derivative Financial Instruments, Liabilities [Member] Maximum
Fair Value Inputs, Liabilities, Quantitative Information [Line Items] |  |  |  |  |  |
Fair value inputs, long dated treasuries |  |  | 2.82% | [1] | 2.91% | [1]
Fair value inputs, own credit risk |  |  | 0.98% | [2] | 1.59% | [2]
Fair Value | $ 0 | $ (826) |  |  |  |
[1] | Represents the forward 30 year Treasury CMT Rate.
[2] | Represents credit default swap spread curve used in the valuation analysis at December 31, 2012.

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- Definition Fair value inputs long dated treasuries. + References No definition available. + Details
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- Definition Risk associated with risk of default, credit spread risk and downgrade risk, expressed as a percentage, used as an input to measure fair value. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (bbb) -URI http://asc.fasb.org/extlink&oid=25499696&loc=d3e19207-110258 + Details
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- Details
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- Definition Fair value of financial and nonfinancial obligations. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=25499696&loc=d3e19207-110258 + Details
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