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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, 2023 USD ($) Collateral	Dec. 31, 2022 USD ($) Collateral
Financing Receivable, Modifications [Line Items]
Real Estate	$ 2,986	$ 18,475
Business Assets	2,915	5,066
Other	$ 1,375	$ 289
Number of Loans Dependent on Collateral | Collateral	21	28
Commercial Real Estate [Member]
Financing Receivable, Modifications [Line Items]
Real Estate	$ 2,634	$ 17,935
Business Assets	0	0
Other	$ 0	$ 0
Number of Loans Dependent on Collateral | Collateral	3	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 [Member]
Financing Receivable, Modifications [Line Items]
Real Estate	$ 151	$ 151
Business Assets	418	292
Other	$ 0	$ 0
Number of Loans Dependent on Collateral | Collateral	5	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	$ 3	$ 87
Business Assets	2,497	2,774
Other	$ 1,167	$ 81
Number of Loans Dependent on Collateral | Collateral	10	13
Dairy & Livestock and Agribusiness [Member]
Financing Receivable, Modifications [Line Items]
Real Estate	$ 198	$ 269
Business Assets	0	2,000
Other	$ 208	$ 208
Number of Loans Dependent on Collateral | Collateral	3	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	$ 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	$ 33
Business Assets	0	0
Other	$ 0	$ 0
Number of Loans Dependent on Collateral | Collateral	0	1

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Number Of Instruments Dependent On Collateral.

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Recorded investment in collateral dependent loans on business assets.

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Recorded investment in collateral dependent loans on real estate.

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