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Employee Benefit Plans - Additional Information (Detail) - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Minimum percentage of eligible compensation on a pre-tax or post-tax basis for eligible employees to save | 1.00% |  |
Employee contribution matching percentage | 50.00% |  |
Percentage of total eligible compensation, contribution by Bank, maximum limit | 6.00% |  |
Vesting percentage in participant's deferral contributions and employer matching contributions | 100.00% |  |
Nonelective employer contribution vesting percentage | 100.00% |  |
Defined contribution plan employer matching contribution description | In order to be eligible for discretionary contributions, employees must work 1,000 hours in the plan year and be employed on the last day of the year. |  |
Employer matching contribution and the discretionary contribution | $ 2,000 | $ 1,400 | $ 1,700
Restricted Stock Awards [Member] |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Vesting period | 3 years |  |
Shares vest under the plan | 100.00% | 100.00% | 100.00%
Compensation expense | $ 1,400 | $ 1,300 | $ 899
Unrecognized compensation cost related to the nonvested portion of restricted stock awards under the plan | $ 2,100 |  |
Unrecognized compensation cost related to the nonvested portion of restricted stock awards under the plan, period for recognition | 3 years |  |

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