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Loans and ACL - Summary of Amortized Cost of Loans Held for Investment (Detail) - USD ($) $ in Thousands | Sep. 30, 2024 | Dec. 31, 2023
--- | --- | ---
Loans and Leases Receivable Disclosure [Line Items] |  |
Gross loans | $ 2,179,508 | $ 2,430,117
Deferred costs, net of loan fees | 905 | 830
Total | 2,180,413 | 2,430,947
Commercial and Industrial [Member] |  |
Loans and Leases Receivable Disclosure [Line Items] |  |
Gross loans | 378,922 | 508,944
Construction, commercial [Member] | Real Estate [Member] |  |
Loans and Leases Receivable Disclosure [Line Items] |  |
Gross loans | 116,276 | 180,052
Construction, Residential [Member] | Real Estate [Member] |  |
Loans and Leases Receivable Disclosure [Line Items] |  |
Gross loans | 43,322 | 75,832
Commercial [Member] | Real Estate [Member] |  |
Loans and Leases Receivable Disclosure [Line Items] |  |
Gross loans | 873,721 | 870,540
Residential [Member] | Real Estate [Member] |  |
Loans and Leases Receivable Disclosure [Line Items] |  |
Gross loans | 713,442 | 730,110
Farmland [Member] | Real Estate [Member] |  |
Loans and Leases Receivable Disclosure [Line Items] |  |
Gross loans | 5,619 | 5,470
Consumer [Member] |  |
Loans and Leases Receivable Disclosure [Line Items] |  |
Gross loans | $ 48,206 | $ 59,169

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