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Accumulated Other Comprehensive Income (Loss) - Additional Information (Detail) - USD ($) | 12 Months Ended
--- | ---
Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022
Accumulated Other Comprehensive Income Loss [Line Items] |  |  |
Net unrealized gains (losses) recorded in comprehensive income |  | $ (1,700,000) |
Sale of securities | $ 0 | 8,149,000 | $ 0
Unrealized Gains and Losses on Available for Sale Securities | Reclassification out of Accumulated Other Comprehensive Income |  |  |
Accumulated Other Comprehensive Income Loss [Line Items] |  |  |
Net gain (loss) on sales of securities | $ 1,500,000 | $ 1,900,000 |

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