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Loans - Summary of Interest Foregone on Impaired Loans (Detail) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
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Jun. 30, 2015 | Jun. 30, 2014 | Jun. 30, 2015 | Jun. 30, 2014
Receivables [Abstract] |  |  |  |
Interest income that would have been recognized had impaired loans performed in accordance with their original terms | $ 1,177 | $ 1,215 | $ 1,917 | $ 2,427
Less: Interest income recognized on impaired loans | (800) | (794) | (1,510) | (1,557)
Interest foregone on impaired loans | $ 377 | $ 421 | $ 407 | $ 870

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- Definition Loans and leases receivable impaired interest income not recognized. + References No definition available. + Details
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- Definition Amount of interest income recognized that the financing receivables (with related allowance for credit losses and without a related allowance for credit losses) were impaired. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 15 -Subparagraph (c)(2) -URI http://asc.fasb.org/extlink&oid=35738203&loc=d3e5212-111524 + Details
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