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Loans - Summary of Loans by Class Modified as Troubled Debt Restructurings (Detail) $ in Thousands | 3 Months Ended | 6 Months Ended | 12 Months Ended
--- | --- | --- | ---
Jun. 30, 2020 USD ($) Loan | Jun. 30, 2020 USD ($) Loan | Dec. 31, 2019 USD ($) Loan
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |
Number of Loans | Loan | 2 | 2 | 8
Pre- Modification Outstanding Recorded Investment | $ 2,002 | $ 2,002 | $ 54,071
Post- Modification Outstanding Recorded Investment | $ 1,973 | $ 1,973 | $ 54,891
Commercial and Industrial Loans |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |
Number of Loans | Loan |  |  | 2
Pre- Modification Outstanding Recorded Investment |  |  | $ 12,779
Post- Modification Outstanding Recorded Investment |  |  | $ 12,562
Consumer Loans |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |
Number of Loans | Loan |  |  | 1
Pre- Modification Outstanding Recorded Investment |  |  | $ 549
Post- Modification Outstanding Recorded Investment |  |  | $ 531
Real Estate Loans |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |
Number of Loans | Loan | 2 | 2 | 5
Pre- Modification Outstanding Recorded Investment | $ 2,002 | $ 2,002 | $ 40,743
Post- Modification Outstanding Recorded Investment | $ 1,973 | $ 1,973 | $ 41,798

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