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Fair Value - Securities Available for Sale Measured at Fair Value on Recurring Basis Using Significant Unobservable Inputs (Level 3) (Detail) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2016 | Sep. 30, 2015 | Sep. 30, 2016 | Sep. 30, 2015
Fair Value Disclosures [Abstract] |  |  |  |
Beginning Balance | $ 1,702 | $ 1,160 | $ 3,413 | $ 905
Proceeds from sale of securities | 0 | 0 | (922) | 0
Total gains or (losses): |  |  |  |
Included in other comprehensive income (unrealized) | 0 | 0 | (789) | 255
Ending Balance | $ 1,702 | $ 1,160 | $ 1,702 | $ 1,160

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- Definition Amount of gain (loss) recognized in other comprehensive income (loss) for financial instrument classified as an asset measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing. + 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 (c)(1a) -URI http://asc.fasb.org/extlink&oid=66048111&loc=d3e19207-110258 + Details
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