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Loans and ACL - Summary of Amortized Cost of TLMs (Detail) $ in Thousands | 3 Months Ended
--- | ---
Mar. 31, 2025 USD ($) Loan | Mar. 31, 2024 USD ($) Loan
Loans and Leases Receivable Disclosure [Line Items] |  |
Number of Loans, Term Extension and Deferral | Loan | 0 | 1
Number of Loans, Interest forgiveness | Loan | 1 | 0
Number of Loans, Payment Deferral | Loan | 2 | 1
Number of Loans | Loan | 3 | 2
Term Extension and Forbearance Amortized Cost | $ | $ 0 | $ 2,548
Modified Interest Forgiveness Amortized Cost | $ | 141 | 0
Payment Deferral Amortized Cost | $ | 502 | 565
Total Modified Loan Amortized Cost | $ | $ 643 | $ 3,113
Commercial and Industrial [Member] | Term extension and Forbearance [Member] |  |
Loans and Leases Receivable Disclosure [Line Items] |  |
Number of Loans, Term Extension and Deferral | Loan | 0 | 1
Term Extension and Forbearance Amortized Cost | $ | $ 0 | $ 2,548
Amortized Cost of Modified Loans to Gross Loans by Category | 0.00% | 0.52%
Residential [Member] | Interest Forgiveness [Member] | Real Estate [Member] |  |
Loans and Leases Receivable Disclosure [Line Items] |  |
Number of Loans, Interest forgiveness | Loan | 1 | 0
Modified Interest Forgiveness Amortized Cost | $ | $ 141 | $ 0
Amortized Cost of Modified Loans to Gross Loans by Category | 0.02% | 0.00%
Residential [Member] | Payment Deferral [Member] | Real Estate [Member] |  |
Loans and Leases Receivable Disclosure [Line Items] |  |
Number of Loans, Payment Deferral | Loan | 1 | 1
Payment Deferral Amortized Cost | $ | $ 493 | $ 565
Amortized Cost of Modified Loans to Gross Loans by Category | 0.07% | 0.08%
Consumer [Member] | Payment Deferral [Member] |  |
Loans and Leases Receivable Disclosure [Line Items] |  |
Number of Loans, Payment Deferral | Loan | 1 | 0
Payment Deferral Amortized Cost | $ | $ 9 | $ 0
Amortized Cost of Modified Loans to Gross Loans by Category | 0.02% | 0.00%

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