Fair Values of Assets and Liabilities - Losses Realized on Assets Measured on Non-Recurring Basis (Detail) - USD ($) $ in Thousands |
3 Months Ended | 6 Months Ended | ||
|---|---|---|---|---|
Jun. 30, 2026 |
Jun. 30, 2025 |
Jun. 30, 2026 |
Jun. 30, 2025 |
|
| Fair Value Disclosures [Abstract] | ||||
| Impaired loans | $ (4,459) | $ (5,284) | $ (11,277) | $ (12,734) |
| Other real estate owned | 0 | (32) | (36) | (32) |
| Total losses | $ (4,459) | $ (5,316) | $ (11,313) | $ (12,766) |