Borrowings - Summary of Federal Home Loan Bank Advances (Detail) - USD ($) $ in Thousands |
Jun. 30, 2026 |
Dec. 31, 2025 |
|---|---|---|
| Federal Home Loan Bank Advances [Line Items] | ||
| Total contractual balance | $ 386,404 | $ 300,000 |
| Fair market value adjustments | (996) | 0 |
| Total Federal Home Loan Bank advances | 385,408 | 300,000 |
| Federal Home Loan Bank Line of Credit Advances [Member] | ||
| Federal Home Loan Bank Advances [Line Items] | ||
| Total contractual balance | $ 298,019 | $ 200,000 |
| Total Federal Home Loan Bank advances, Weighted Average Rate | 3.83% | 3.89% |
| Federal Home Loan Bank Fixed Rate Term Advances [Member] | ||
| Federal Home Loan Bank Advances [Line Items] | ||
| Total contractual balance | $ 88,385 | $ 100,000 |
| Total Federal Home Loan Bank advances, Weighted Average Rate | 3.65% | 3.84% |