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Loans and Lease Finance Receivables and Allowance for Credit Losses - Summary of Loan, Including PCI Loans by Internal Risk Ratings (Detail) - USD ($) $ in Thousands | Dec. 31, 2024 | Dec. 31, 2023
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Commercial And Industrial [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Notes receivable gross | $ 925,178 | $ 969,895
SBA Loans [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Notes receivable gross | 273,013 | 270,619
SFR mortgage [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Notes receivable gross | 269,172 | 269,868
Dairy & Livestock and Agribusiness [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Notes receivable gross | 419,904 | 412,891
Municipal Lease Finance Receivables [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Notes receivable gross | $ 66,114 | $ 73,590

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