Loans - Summary of Amortized Cost Basis of Collateral Dependent Loans By Class of Loans (Detail) - USD ($) $ in Thousands |
Jun. 30, 2026 |
Dec. 31, 2025 |
|---|---|---|
| Loans And Leases Receivable Disclosure [Line Items] | ||
| Amortized Cost | $ 5,160 | $ 12,539 |
| Real Estate | ||
| Loans And Leases Receivable Disclosure [Line Items] | ||
| Amortized Cost | 5,160 | 12,539 |
| Real Estate | Retail | ||
| Loans And Leases Receivable Disclosure [Line Items] | ||
| Amortized Cost | 429 | 596 |
| Real Estate | Office | ||
| Loans And Leases Receivable Disclosure [Line Items] | ||
| Amortized Cost | 337 | 10,159 |
| Real Estate | Other | ||
| Loans And Leases Receivable Disclosure [Line Items] | ||
| Amortized Cost | 1,143 | 671 |
| Real Estate | Total commercial property loans | ||
| Loans And Leases Receivable Disclosure [Line Items] | ||
| Amortized Cost | 1,909 | 11,426 |
| Real Estate | Residential | ||
| Loans And Leases Receivable Disclosure [Line Items] | ||
| Amortized Cost | $ 3,251 | $ 1,113 |