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Allowance for Credit Losses - Effect of Loan Modification (Detail) | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2024 | Jun. 30, 2024 | Jun. 30, 2023
Combination - Term Extension/Rate Change | Commercial and industrial |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |
Weighted average increase term | 60 months |  |
Payment Delay / Term Extension | Commercial and industrial |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |
Weighted average increase term |  | 49 months | 12 months
CRE non-owner occupied | Combination - Term Extension/Rate Change |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |
Weighted average increase term |  | 120 months |
SFR HELOCs and junior liens | Payment Delay / Term Extension |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |
Weighted average increase term |  | 60 months |
Multifamily | Combination - Term Extension/Rate Change |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |
Weighted average increase term | 12 months |  |

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