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Financial Instruments with Off-Balance Sheet Risk (Detail) - USD ($) $ in Thousands | Sep. 30, 2019 | Dec. 31, 2018
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Financial Instruments with Off Balance Sheet Risk |  |
Amount of credit risk | $ 578,243 | $ 538,742
Commitments to extend credit |  |
Financial Instruments with Off Balance Sheet Risk |  |
Amount of credit risk | 570,220 | 529,890
Standby letters of credit |  |
Financial Instruments with Off Balance Sheet Risk |  |
Amount of credit risk | $ 8,023 | $ 8,852

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- Definition Amount of expected credit loss for credit exposure on off-balance-sheet commitment, including but not limited to, loan commitment, standby letter of credit, financial guarantee not accounted for as insurance. Excludes off-balance sheet credit exposure accounted for as insurance and instrument accounted for under derivatives and hedging. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 460 -SubTopic 10 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=118956080&loc=d3e11927-110247 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=118955202&loc=SL82919202-210446 + Details
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- Details
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