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Loans and Lease Finance Receivables and Allowance for Credit Losses - Summary of Recorded Investment in Collateral-Dependent loans (Detail) $ in Thousands | Dec. 31, 2023 USD ($) Collateral | Dec. 31, 2022 USD ($) Collateral
--- | --- | ---
Financing Receivable, Modifications [Line Items] |  |
Real Estate | $ 16,965 | $ 18,475
Business Assets | 3,170 | 5,066
Other | $ 1,167 | $ 289
Number of Loans Dependent on Collateral | Collateral | 19 | 28
Commercial Real Estate [Member] |  |
Financing Receivable, Modifications [Line Items] |  |
Real Estate | $ 15,440 | $ 17,935
Business Assets | 0 | 0
Other | $ 0 | $ 0
Number of Loans Dependent on Collateral | Collateral | 5 | 4
Construction [Member] |  |
Financing Receivable, Modifications [Line Items] |  |
Real Estate | $ 0 | $ 0
Business Assets | 0 | 0
Other | $ 0 | $ 0
Number of Loans Dependent on Collateral | Collateral | 0 | 0
Small Business Administration Loans [Member] |  |
Financing Receivable, Modifications [Line Items] |  |
Real Estate | $ 749 | $ 151
Business Assets | 220 | 292
Other | $ 0 | $ 0
Number of Loans Dependent on Collateral | Collateral | 4 | 6
SBA - Paycheck Protection Program (PPP) [Member] |  |
Financing Receivable, Modifications [Line Items] |  |
Real Estate | $ 0 | $ 0
Business Assets | 0 | 0
Other | $ 0 | $ 0
Number of Loans Dependent on Collateral | Collateral | 0 | 0
Commercial and Industrial [Member] |  |
Financing Receivable, Modifications [Line Items] |  |
Real Estate | $ 392 | $ 87
Business Assets | 2,950 | 2,774
Other | $ 1,167 | $ 81
Number of Loans Dependent on Collateral | Collateral | 8 | 13
Dairy & Livestock and Agribusiness [Member] |  |
Financing Receivable, Modifications [Line Items] |  |
Real Estate | $ 60 | $ 269
Business Assets | 0 | 2,000
Other | $ 0 | $ 208
Number of Loans Dependent on Collateral | Collateral | 1 | 4
Municipal Lease Finance Receivables [Member] |  |
Financing Receivable, Modifications [Line Items] |  |
Real Estate | $ 0 | $ 0
Business Assets | 0 | 0
Other | $ 0 | $ 0
Number of Loans Dependent on Collateral | Collateral | 0 | 0
SFR mortgage [Member] |  |
Financing Receivable, Modifications [Line Items] |  |
Real Estate | $ 324 | $ 0
Business Assets | 0 | 0
Other | $ 0 | $ 0
Number of Loans Dependent on Collateral | Collateral | 1 | 0
Consumer And Other Loans [Member] |  |
Financing Receivable, Modifications [Line Items] |  |
Real Estate | $ 0 | $ 33
Business Assets | 0 | 0
Other | $ 0 | $ 0
Number of Loans Dependent on Collateral | Collateral | 0 | 1

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