Loans and Lease Finance Receivables and Allowance for Credit Losses - Schedule of Amortized Cost of Loans Activity (Details) - USD ($) $ in Thousands	9 Months Ended	12 Months Ended
Sep. 30, 2025	Dec. 31, 2024
Financing Receivable, Modified [Line Items]
Financing Receivable, Modified, Accumulated	$ 10,756	$ 6,467
Term Extension [Member]
Financing Receivable, Modified [Line Items]
Financing Receivable, Modified, Accumulated	9,298	5,784
Term Extension [Member] \| Commercial Real Estate [Member]
Financing Receivable, Modified [Line Items]
Financing Receivable, Modified, Accumulated	$ 7,754	$ 2,180
Financing receivable, modified in period, to total financing receivables, percentage	0.09%	0.03%
Financing receivable, modified, weighted average term, description	Added a weighted-average 1.8 years to the life of loans, which reduced monthly payment amounts for the borrowers.	Added a weighted-average 1.7 years to the life of loans, which reduced monthly payment amounts for the borrowers.
Term Extension [Member] \| Commercial and Industrial [Member]
Financing Receivable, Modified [Line Items]
Financing Receivable, Modified, Accumulated	$ 1,149	$ 2,804
Financing receivable, modified in period, to total financing receivables, percentage	0.01%	0.03%
Financing receivable, modified, weighted average term, description	Added a weighted-average 1.4 years to the life of loans, which reduced monthly payment amounts for the borrowers.	Added a weighted-average 1.2 years to the life of loans, which reduced monthly payment amounts for the borrowers.
Term Extension [Member] \| Dairy & Livestock and Agribusiness [Member]
Financing Receivable, Modified [Line Items]
Financing Receivable, Modified, Accumulated	$ 395	$ 800
Financing receivable, modified in period, to total financing receivables, percentage	0.00%	0.01%
Financing receivable, modified, weighted average term, description	Added a weighted-average 1.6 years to the life of loans, which reduced monthly payment amounts for the borrowers.	Added a weighted-average 0.9 years to the life of loans, which reduced monthly payment amounts for the borrowers.
Term Extension and Interest Rate Reduction
Financing Receivable, Modified [Line Items]
Financing Receivable, Modified, Accumulated	$ 1,458	$ 683
Term Extension and Interest Rate Reduction \| Commercial Real Estate [Member]
Financing Receivable, Modified [Line Items]
Financing Receivable, Modified, Accumulated	$ 675	$ 683
Financing receivable, modified in period, to total financing receivables, percentage	0.01%	0.01%
Financing receivable, modified, weighted average term, description	Added a weighted-average 7.6 years to the life of loans, which reduced monthly payment amounts for the borrowers; reduced weighted-average contractual interest rate from 10.00% to 7.25%.	Added a weighted-average 7.6 years to the life of loans, which reduced monthly payment amounts for the borrowers; reduced weighted-average contractual interest rate from 10.00% to 7.25%.
Term Extension and Interest Rate Reduction \| Commercial and Industrial [Member]
Financing Receivable, Modified [Line Items]
Financing Receivable, Modified, Accumulated	$ 783
Financing receivable, modified in period, to total financing receivables, percentage	0.01%
Financing receivable, modified, weighted average term, description	Added a weighted-average 1.6 years to the life of loans, which reduced monthly payment amounts for the borrowers; reduced weighted-average contractual interest rate from 8.50% to 7.75%.

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