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Investment Securities and Other Investments - Summary of Amortized Cost and Fair Values of Investment Securities (Detail) - USD ($) $ in Thousands | Dec. 31, 2023 | Dec. 31, 2022
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Schedule Of Available For Sale And Held To Maturity Securities [Line Items] |  |
Securities available for sale | $ 321,081 | $ 354,341
Investment securities, Amortized Cost | 379,654 | 413,015
Investment securities, Gross Unrealized Gains | 12 | 175
Investment securities, Gross Unrealized Losses | (58,585) | (58,849)
Investment securities, Fair Value | 321,081 | 354,341
Mortgage Backed Securities [Member] |  |
Schedule Of Available For Sale And Held To Maturity Securities [Line Items] |  |
Available for sale, Amortized Cost | 212,214 | 230,015
Available for sale, Gross Unrealized Gains |  | 51
Available for sale, Gross Unrealized Losses | (35,244) | (33,730)
Securities available for sale | 176,970 | 196,336
U.S. Treasury and Agencies [Member] |  |
Schedule Of Available For Sale And Held To Maturity Securities [Line Items] |  |
Available for sale, Amortized Cost | 79,856 | 80,073
Available for sale, Gross Unrealized Losses | (10,985) | (12,911)
Securities available for sale | 68,871 | 67,162
State and Municipal [Member] |  |
Schedule Of Available For Sale And Held To Maturity Securities [Line Items] |  |
Available for sale, Amortized Cost | 50,682 | 60,018
Available for sale, Gross Unrealized Losses | (7,357) | (9,025)
Securities available for sale | 43,325 | 50,993
Corporate Bonds [Member] |  |
Schedule Of Available For Sale And Held To Maturity Securities [Line Items] |  |
Available for sale, Amortized Cost | 36,902 | 42,909
Available for sale, Gross Unrealized Gains | 12 | 124
Available for sale, Gross Unrealized Losses | (4,999) | (3,183)
Securities available for sale | $ 31,915 | $ 39,850

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