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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	Mar. 31, 2025 USD ($) Collateral	Dec. 31, 2024 USD ($) Collateral
Financing Receivable, Modifications [Line Items]
Real Estate	$ 25,462	$ 27,466
Business Assets	172	327
Other	$ 0	$ 0
Number of Loans Dependent on Collateral | Collateral	9	15
Commercial Real Estate [Member]
Financing Receivable, Modifications [Line Items]
Real Estate	$ 24,378	$ 25,866
Business Assets	0	0
Other	$ 0	$ 0
Number of Loans Dependent on Collateral | Collateral	3	6
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 [Member]
Financing Receivable, Modifications [Line Items]
Real Estate	$ 1,024	$ 1,529
Business Assets	0	0
Other	$ 0	$ 0
Number of Loans Dependent on Collateral | Collateral	4	5
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	$ 0	$ 11
Business Assets	172	327
Other	$ 0	$ 0
Number of Loans Dependent on Collateral | Collateral	1	3
Dairy & Livestock and Agribusiness [Member]
Financing Receivable, Modifications [Line Items]
Real Estate	$ 60	$ 60
Business Assets	0	0
Other	$ 0	$ 0
Number of Loans Dependent on Collateral | Collateral	1	1
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	$ 0	$ 0
Business Assets	0	0
Other	$ 0	$ 0
Number of Loans Dependent on Collateral | Collateral	0	0
Consumer and Other Loans [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

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Number Of Instruments Dependent On Collateral.

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- Definition

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- Definition

Recorded investment in collateral dependent loans on business assets.

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Recorded investment in collateral dependent loans on other financial instruments.

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Recorded investment in collateral dependent loans on real estate.

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