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v3.25.3

Loans and ACL - Summary of Amortized Cost of Loans Designated as TLMs (Detail) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2025 USD ($) Loan | Sep. 30, 2024 USD ($) Loan | Sep. 30, 2025 USD ($) Loan | Sep. 30, 2024 USD ($) Loan
Loans and Leases Receivable Disclosure [Line Items] |  |  |  |
Modified term extension and deferral loan units | Loan | 4 | 6 | 6 | 9
Amortized Cost | $ | $ 523 | $ 1,555 | $ 2,602 | $ 1,973
Term extension and Forbearance [Member] |  |  |  |
Loans and Leases Receivable Disclosure [Line Items] |  |  |  |
Modified term extension and deferral loan units | Loan | 0 | 1 | 0 | 1
Amortized Cost | $ | $ 0 | $ 229 | $ 0 | $ 229
Term Extension, Deferral and Interest Rate Reduction [Member] |  |  |  |
Loans and Leases Receivable Disclosure [Line Items] |  |  |  |
Modified term extension and deferral loan units | Loan | 0 | 1 | 0 | 2
Amortized Cost | $ | $ 0 | $ 190 | $ 0 | $ 409
Interest Forgiven [Member] |  |  |  |
Loans and Leases Receivable Disclosure [Line Items] |  |  |  |
Modified term extension and deferral loan units | Loan |  |  | 1 | 0
Amortized Cost | $ |  |  | $ 139 | $ 0
Extended Maturity [Member] |  |  |  |
Loans and Leases Receivable Disclosure [Line Items] |  |  |  |
Modified term extension and deferral loan units | Loan | 4 | 3 | 5 | 4
Amortized Cost | $ | $ 523 | $ 632 | $ 2,463 | $ 670
Payment Deferral [Member] |  |  |  |
Loans and Leases Receivable Disclosure [Line Items] |  |  |  |
Modified term extension and deferral loan units | Loan | 0 | 1 | 0 | 2
Amortized Cost | $ | $ 0 | $ 504 | $ 0 | $ 665
Commercial and Industrial [Member] | Term extension and Forbearance [Member] |  |  |  |
Loans and Leases Receivable Disclosure [Line Items] |  |  |  |
Modified term extension and deferral loan units | Loan | 0 | 1 | 0 | 1
Amortized Cost | $ | $ 0 | $ 229 | $ 0 | $ 229
Amortized Cost of Modified Loans to Gross Loans by Category | 0.00% | 0.06% | 0.00% | 0.06%
Commercial and Industrial [Member] | Term Extension, Deferral and Interest Rate Reduction [Member] |  |  |  |
Loans and Leases Receivable Disclosure [Line Items] |  |  |  |
Modified term extension and deferral loan units | Loan | 0 | 1 | 0 | 2
Amortized Cost | $ | $ 0 | $ 190 | $ 0 | $ 409
Amortized Cost of Modified Loans to Gross Loans by Category | 0.00% | 0.05% | 0.00% | 0.11%
Commercial and Industrial [Member] | Extended Maturity [Member] |  |  |  |
Loans and Leases Receivable Disclosure [Line Items] |  |  |  |
Modified term extension and deferral loan units | Loan | 0 | 2 | 1 | 2
Amortized Cost | $ | $ 0 | $ 560 | $ 1,940 | $ 560
Amortized Cost of Modified Loans to Gross Loans by Category | 0.00% | 0.15% | 0.00% | 0.15%
Commercial and Industrial [Member] | Payment Deferral [Member] |  |  |  |
Loans and Leases Receivable Disclosure [Line Items] |  |  |  |
Modified term extension and deferral loan units | Loan |  |  | 0 | 1
Amortized Cost | $ |  |  | $ 0 | $ 161
Amortized Cost of Modified Loans to Gross Loans by Category |  |  | 0.00% | 0.04%
Consumer Loans [Member] | Payment Deferral [Member] |  |  |  |
Loans and Leases Receivable Disclosure [Line Items] |  |  |  |
Modified term extension and deferral loan units | Loan | 0 | 0 |  |
Amortized Cost | $ | $ 0 | $ 0 |  |
Amortized Cost of Modified Loans to Gross Loans by Category | 0.00% | 0.00% |  |
Commercial [Member] | Extended Maturity [Member] | Real Estate [Member] |  |  |  |
Loans and Leases Receivable Disclosure [Line Items] |  |  |  |
Modified term extension and deferral loan units | Loan | 3 | 0 | 3 | 1
Amortized Cost | $ | $ 472 | $ 0 | $ 472 | $ 38
Amortized Cost of Modified Loans to Gross Loans by Category | 0.06% | 0.00% | 0.06% | 0.00%
Residential [Member] | Interest Forgiven [Member] | Real Estate [Member] |  |  |  |
Loans and Leases Receivable Disclosure [Line Items] |  |  |  |
Modified term extension and deferral loan units | Loan |  |  | 1 | 0
Amortized Cost | $ |  |  | $ 139 | $ 0
Amortized Cost of Modified Loans to Gross Loans by Category |  |  | 0.02% | 0.00%
Residential [Member] | Extended Maturity [Member] | Real Estate [Member] |  |  |  |
Loans and Leases Receivable Disclosure [Line Items] |  |  |  |
Modified term extension and deferral loan units | Loan | 1 | 1 | 1 | 1
Amortized Cost | $ | $ 51 | $ 72 | $ 51 | $ 72
Amortized Cost of Modified Loans to Gross Loans by Category | 0.01% | 0.01% | 0.01% | 0.01%
Residential [Member] | Payment Deferral [Member] | Real Estate [Member] |  |  |  |
Loans and Leases Receivable Disclosure [Line Items] |  |  |  |
Modified term extension and deferral loan units | Loan | 0 | 1 | 0 | 1
Amortized Cost | $ | $ 0 | $ 504 | $ 0 | $ 504
Amortized Cost of Modified Loans to Gross Loans by Category | 0.00% | 0.07% | 0.00% | 0.07%

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