Loans and ACL - Summary of Amortized Cost of Collateral-Dependent Loans, Individually Evaluated for Credit Losses (Detail) - USD ($) $ in Thousands |
6 Months Ended | 12 Months Ended |
|---|---|---|
Jun. 30, 2026 |
Dec. 31, 2025 |
|
| Loans and Leases Receivable Disclosure [Line Items] | ||
| Amortized cost of collateral dependent loans | $ 38,430 | $ 77,226 |
| Commercial and Industrial [Member] | ||
| Loans and Leases Receivable Disclosure [Line Items] | ||
| Amortized cost of collateral dependent loans | 25,645 | 32,719 |
| Real Estate [Member] | Commercial [Member] | ||
| Loans and Leases Receivable Disclosure [Line Items] | ||
| Amortized cost of collateral dependent loans | 7,399 | 38,940 |
| Real Estate [Member] | Residential [Member] | ||
| Loans and Leases Receivable Disclosure [Line Items] | ||
| Amortized cost of collateral dependent loans | $ 5,386 | $ 5,567 |