Fair Values of Assets and Liabilities - Losses Realized on Assets Measured on Non-Recurring Basis (Detail) - USD ($) $ in Thousands |
3 Months Ended | |
|---|---|---|
Mar. 31, 2026 |
Mar. 31, 2025 |
|
| Fair Value Disclosures [Abstract] | ||
| Impaired loans | $ (9,928) | $ (7,606) |
| Other real estate owned | (73) | (38) |
| Total losses | $ (10,001) | $ (7,644) |