Loans and Allowance for Credit Losses - Additional Information (Detail) $ in Thousands |
12 Months Ended | |
|---|---|---|
|
Dec. 31, 2025
USD ($)
Pool
|
Dec. 31, 2024
USD ($)
Pool
|
|
| Accounts Notes And Loans Receivable [Line Items] | ||
| Purchases of government guaranteed loans | $ 61,987 | $ 49,086 |
| Loans | 4,145,424 | 3,457,549 |
| Unamortized purchase accounting discounts | 12,853 | 4,659 |
| Loans purchased at discount | 627,644 | 252,309 |
| Outstanding commitments on loans | 3 | 1,145 |
| Consumer Loans [Member] | ||
| Accounts Notes And Loans Receivable [Line Items] | ||
| Over-draft deposit accounts | $ 878 | $ 329 |
| Residential Real Estate/Mortgage Loan Pools [Member] | ||
| Accounts Notes And Loans Receivable [Line Items] | ||
| Purchased pools of residential real estate | Pool | 0 | 0 |
| Loans | $ 252,884 | $ 274,922 |