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Fair Values of Assets and Liabilities - Losses Realized on Assets Measured on Non-Recurring Basis (Detail) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
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Sep. 30, 2018 | Sep. 30, 2017 | Sep. 30, 2018 | Sep. 30, 2017
Fair Value Disclosures [Abstract] |  |  |  |
Impaired loans | $ (239) | $ (156) | $ (6,659) | $ 160
Other real estate owned | (128) | (116) | (544) | (1,196)
Total losses | $ (367) | $ (272) | $ (7,203) | $ (1,036)

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- Definition Net losses on assets measured on nonrecurring basis. + References No definition available. + Details
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- Definition Net losses on impaired loans still held at the end of the period. + References No definition available. + Details
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- Definition Net losses on other real estate owned still held at the end of the period + References No definition available. + Details
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- References No definition available. + Details
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