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v3.25.2

Loans and ACL - Additional Information (Detail) | 3 Months Ended | 6 Months Ended | 12 Months Ended
--- | --- | --- | ---
Jun. 30, 2025 USD ($) | Mar. 31, 2025 USD ($) Loan | Jun. 30, 2024 USD ($) | Jun. 30, 2025 USD ($) Loan | Jun. 30, 2024 USD ($) | Dec. 31, 2024 USD ($)
Loans and Leases Receivable Disclosure [Line Items] |  |  |  |  |  |
Interest income from nonaccrual loans | $ 30,000 |  | $ 122,000 | $ 148,000 | $ 187,000 |
Accrued interest excluded from ACL | 10,000,000 |  |  | 10,000,000 |  | $ 10,700,000
Loans pledged | 1,977,738,000 |  |  | 1,977,738,000 |  | 2,110,755,000
Recorded investment of PCD Loans |  |  |  | 39,100,000 |  | 43,800,000
Recorded investment, estimated allowance for credit loss |  |  |  | 200,000 |  | 300,000
Recorded investment, PCD Discount (Premium) |  |  |  | 2,500,000 |  | 3,000,000
Granted TLM | 0 |  | $ 0 | $ 2,165,000 | 225,000 |
Revised maturity date |  |  |  | Jun. 30, 2027 |  |
Number of residential mortgage loans in the process of foreclosure | Loan |  |  |  | 9 |  |
Mortgage loans with total amortized cost |  |  |  | $ 1,600,000 |  |
Unfunded commitments | 0 |  |  | 0 |  | 0
Extension and Principal Forbearance [Member] |  |  |  |  |  |
Loans and Leases Receivable Disclosure [Line Items] |  |  |  |  |  |
Granted TLM |  |  |  | 2,024,000 | 0 |
Granted loan maturity period |  | 18 months |  |  |  |
Extended Maturity [Member] |  |  |  |  |  |
Loans and Leases Receivable Disclosure [Line Items] |  |  |  |  |  |
Granted loan maturity period |  | 72 months |  |  |  |
Forgiveness [Member] |  |  |  |  |  |
Loans and Leases Receivable Disclosure [Line Items] |  |  |  |  |  |
Accrued interest amount |  | $ 40,000 |  |  |  |
Commercial and Residential Mortgages Loans [Member] | Asset Pledged as Collateral without Right [Member] | Federal Home Loan Bank Advances [Member] |  |  |  |  |  |
Loans and Leases Receivable Disclosure [Line Items] |  |  |  |  |  |
Loans pledged | 749,700,000 |  |  | 749,700,000 |  | 797,700,000
Commercial and Industrial [Member] |  |  |  |  |  |
Loans and Leases Receivable Disclosure [Line Items] |  |  |  |  |  |
Loans pledged | 323,976,000 |  |  | 323,976,000 |  | 354,904,000
Commercial and Industrial [Member] | Extension and Principal Forbearance [Member] |  |  |  |  |  |
Loans and Leases Receivable Disclosure [Line Items] |  |  |  |  |  |
Granted TLM |  |  |  | 2,024,000 | $ 0 |
Commercial and Industrial [Member] | Asset Pledged as Collateral without Right [Member] | FRB [Member] |  |  |  |  |  |
Loans and Leases Receivable Disclosure [Line Items] |  |  |  |  |  |
Loans pledged | $ 75,100,000 |  |  | $ 75,100,000 |  | $ 91,600,000
Residential Mortgages [Member] |  |  |  |  |  |
Loans and Leases Receivable Disclosure [Line Items] |  |  |  |  |  |
Modified term extension and forbearance loan units | Loan |  | 3 |  |  |  |

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