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Allowance for Credit Losses - Amortized Cost Basis of Loans Experiencing Financial difficulty and Modified (Detail) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2024 | Jun. 30, 2023 | Jun. 30, 2024 | Jun. 30, 2023
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |
Combination - Term Extension/Rate Change | $ 0 |  | $ 211 |
Payment Delay/Term Extension | $ 461 | $ 177 | $ 1,018 | $ 177
Total % of Loans Outstanding (Percentage) | 0.01% | 0.03% | 0.02% | 0.03%
SFR HELOCs and junior liens |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |
Combination - Term Extension/Rate Change |  |  | $ 0 |
Payment Delay/Term Extension |  |  | $ 41 | $ 0
Total % of Loans Outstanding (Percentage) |  |  | 0.01% | 0.00%
Commercial real estate | CRE non-owner occupied |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |
Combination - Term Extension/Rate Change |  |  | $ 211 |
Payment Delay/Term Extension |  |  | $ 0 | $ 0
Total % of Loans Outstanding (Percentage) |  |  | 0.01% | 0.00%
Commercial real estate | Multifamily |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |
Combination - Term Extension/Rate Change | $ 0 |  | $ 0 |
Payment Delay/Term Extension | $ 295 | $ 0 | $ 295 | $ 0
Total % of Loans Outstanding (Percentage) | 0.03% | 0.00% | 0.029% | 0.00%
Commercial and industrial |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |
Combination - Term Extension/Rate Change | $ 0 |  | $ 0 |
Payment Delay/Term Extension | $ 166 | $ 177 | $ 682 | $ 177
Total % of Loans Outstanding (Percentage) | 0.03% | 0.03% | 0.12% | 0.03%

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