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v3.19.2

Loans and the Allowance for Credit Losses - TDRs Defaulted Later Restructured (Detail) $ in Thousands | 6 Months Ended
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Jun. 30, 2019 USD ($) Default | Jun. 30, 2018 USD ($) Default
Financing Receivable, Modifications [Line Items] |  |
Number of Defaults | Default | 2 | 3
Recorded Investment | $ | $ 110 | $ 273
Commercial Real Estate - Improved Property [Member] |  |
Financing Receivable, Modifications [Line Items] |  |
Number of Defaults | Default |  | 1
Recorded Investment | $ |  | $ 145
Commercial Real Estate [Member] |  |
Financing Receivable, Modifications [Line Items] |  |
Number of Defaults | Default |  | 1
Recorded Investment | $ |  | $ 145
Residential Real Estate [Member] |  |
Financing Receivable, Modifications [Line Items] |  |
Number of Defaults | Default | 1 | 1
Recorded Investment | $ | $ 97 | $ 121
Consumer [Member] |  |
Financing Receivable, Modifications [Line Items] |  |
Number of Defaults | Default | 1 |
Recorded Investment | $ | $ 13 |
Home Equity [Member] |  |
Financing Receivable, Modifications [Line Items] |  |
Number of Defaults | Default |  | 1
Recorded Investment | $ |  | $ 7

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- Definition Number of financing receivable contracts modified as troubled debt restructuring within previous 12 months, with subsequent payment default. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 34 -URI http://asc.fasb.org/extlink&oid=118936363&loc=SL6953682-111524 + Details
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- Definition Amount of financing receivable modified as troubled debt restructuring within previous 12 months, with subsequent payment default. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 34 -Subparagraph (a)(2) -URI http://asc.fasb.org/extlink&oid=118936363&loc=SL6953682-111524 + Details
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