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Investment Securities and Other Investments - Summary of Unrealized Losses (Detail) $ in Thousands | Dec. 31, 2024 USD ($) Security | Dec. 31, 2023 USD ($) Security
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Schedule Of Available For Sale And Held To Maturity Securities [Line Items] |  |
Number of Securities | Security | 226 | 219
Available-for-sale Securities, Fair Value, Less Than 12 Months | $ 17,480 | $ 15,785
Available-for-sale Securities, Unrealized Losses, Less Than 12 Months | (170) | (885)
Available-for-sale Securities, Fair Value, 12 Months or Greater | 293,439 | 300,674
Available-for-sale Securities, Unrealized Losses, 12 months or Greater | (55,364) | (57,700)
Fair Value, Total | 310,919 | 316,459
Unrealized Losses, Total | $ (55,534) | $ (58,585)
State and Municipal [Member] |  |
Schedule Of Available For Sale And Held To Maturity Securities [Line Items] |  |
Number of Securities | Security | 70 | 65
Available-for-sale Securities, Fair Value, Less Than 12 Months | $ 2,040 | $ 536
Available-for-sale Securities, Unrealized Losses, Less Than 12 Months | (42) | (9)
Available-for-sale Securities, Fair Value, 12 Months or Greater | 40,531 | 41,118
Available-for-sale Securities, Unrealized Losses, 12 months or Greater | (7,254) | (7,348)
Fair Value, Total | 42,571 | 41,654
Unrealized Losses, Total | $ (7,296) | $ (7,357)
U.S. Treasury and Agencies [Member] |  |
Schedule Of Available For Sale And Held To Maturity Securities [Line Items] |  |
Number of Securities | Security | 29 | 29
Available-for-sale Securities, Fair Value, Less Than 12 Months | $ 0 | $ 283
Available-for-sale Securities, Unrealized Losses, Less Than 12 Months | 0 | (1)
Available-for-sale Securities, Fair Value, 12 Months or Greater | 69,453 | 68,399
Available-for-sale Securities, Unrealized Losses, 12 months or Greater | (9,975) | (10,984)
Fair Value, Total | 69,453 | 68,682
Unrealized Losses, Total | $ (9,975) | $ (10,985)
Mortgage Backed Securities [Member] |  |
Schedule Of Available For Sale And Held To Maturity Securities [Line Items] |  |
Number of Securities | Security | 85 | 86
Available-for-sale Securities, Fair Value, Less Than 12 Months | $ 11,637 | $ 7,497
Available-for-sale Securities, Unrealized Losses, Less Than 12 Months | (107) | (45)
Available-for-sale Securities, Fair Value, 12 Months or Greater | 152,802 | 169,474
Available-for-sale Securities, Unrealized Losses, 12 months or Greater | (34,908) | (35,199)
Fair Value, Total | 164,439 | 176,971
Unrealized Losses, Total | $ (35,015) | $ (35,244)
Corporate Bonds [Member] |  |
Schedule Of Available For Sale And Held To Maturity Securities [Line Items] |  |
Number of Securities | Security | 42 | 39
Available-for-sale Securities, Fair Value, Less Than 12 Months | $ 3,803 | $ 7,469
Available-for-sale Securities, Unrealized Losses, Less Than 12 Months | (21) | (830)
Available-for-sale Securities, Fair Value, 12 Months or Greater | 30,653 | 21,683
Available-for-sale Securities, Unrealized Losses, 12 months or Greater | (3,227) | (4,169)
Fair Value, Total | 34,456 | 29,152
Unrealized Losses, Total | $ (3,248) | $ (4,999)

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