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Loans Receivable, Net - Troubled Debt Restructurings (Detail) | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2019 USD ($) SecurityLoan | Sep. 30, 2018 USD ($) SecurityLoan | Sep. 30, 2019 USD ($) SecurityLoan | Sep. 30, 2018 USD ($) SecurityLoan
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |  |
Number of Loans, Which Subsequently Defaulted | SecurityLoan | 0 |  | 0 |
Recorded Investment, Which Subsequently Defaulted | $ 0 |  | $ 0 |
Commercial and industrial |  |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |  |
Number of Loans | SecurityLoan |  |  |  | 2
Pre-modification Recorded Investment |  |  |  | $ 496,000
Post-modification Recorded Investment |  |  |  | $ 502,000
Consumer |  |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |  |
Number of Loans | SecurityLoan | 1 |  | 5 |
Pre-modification Recorded Investment | $ 54,000 |  | $ 496,000 |
Post-modification Recorded Investment | $ 54,000 |  | $ 516,000 |
Number of Loans, Which Subsequently Defaulted | SecurityLoan |  | 1 |  | 1
Recorded Investment, Which Subsequently Defaulted |  | $ 30,000 |  | $ 30,000
Residential real estate |  |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |  |
Number of Loans | SecurityLoan |  |  | 5 | 2
Pre-modification Recorded Investment |  |  | $ 921,000 | $ 257,000
Post-modification Recorded Investment |  |  | $ 972,000 | $ 270,000
Commercial real estate – owner occupied |  |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |  |
Number of Loans | SecurityLoan |  | 1 |  | 1
Pre-modification Recorded Investment |  | $ 49,000 |  | $ 49,000
Post-modification Recorded Investment |  | $ 50,000 |  | $ 50,000
Commercial real estate – investor |  |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |  |
Number of Loans | SecurityLoan |  | 1 |  | 3
Pre-modification Recorded Investment |  | $ 171,000 |  | $ 1,395,000
Post-modification Recorded Investment |  | $ 210,000 |  | $ 1,435,000
Number of Loans, Which Subsequently Defaulted | SecurityLoan |  | 1 |  | 1
Recorded Investment, Which Subsequently Defaulted |  | $ 2,820,000 |  | $ 2,820,000

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- Definition Number of financing receivables that have been modified by troubled debt restructurings. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 33 -URI http://asc.fasb.org/extlink&oid=118936363&loc=SL6953676-111524 + Details
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