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Loans Held for Investment and Allowance for Credit Losses on Loans - Transfers from Loans and Premises and Equipment to Other Real Estate Owned and Repossessed Assets (Detail) - USD ($) $ in Thousands | 9 Months Ended
--- | ---
Sep. 30, 2023 | Sep. 30, 2022
Noncash Investing and Financing Items [Abstract] |  |
Other real estate owned | $ 2,236 | $ 4,393
Repossessed assets | 1,448 | 696
Total | $ 3,684 | $ 5,089

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