Allowance for Credit Losses - Summary of Amortized Cost Basis of Nonaccrual Loans and Loans Past due Over 89 Days Still Accruing (Detail) - USD ($) $ in Thousands	Dec. 31, 2025	Dec. 31, 2024
Financing Receivable, Nonaccrual [Line Items]
Nonaccrual with No Allowance for Credit Loss	$ 16,575	$ 9,160
Nonaccrual with a related Allowance for Credit Loss	7,568	7,519
Total Nonaccrual	24,143	16,679
Loans 90 days or greater past due still accruing	249	494
Agriculture and Farmland [Member]
Financing Receivable, Nonaccrual [Line Items]
Nonaccrual with No Allowance for Credit Loss	818	0
Nonaccrual with a related Allowance for Credit Loss	0	0
Total Nonaccrual	818	0
Loans 90 days or greater past due still accruing	0	0
Construction [Member]
Financing Receivable, Nonaccrual [Line Items]
Nonaccrual with No Allowance for Credit Loss	354	9
Nonaccrual with a related Allowance for Credit Loss	143	0
Total Nonaccrual	497	9
Loans 90 days or greater past due still accruing	0	157
Commercial and Industrial [Member]
Financing Receivable, Nonaccrual [Line Items]
Nonaccrual with No Allowance for Credit Loss	598	125
Nonaccrual with a related Allowance for Credit Loss	5,385	7
Total Nonaccrual	5,983	132
Loans 90 days or greater past due still accruing	0	0
Multifamily [Member]
Financing Receivable, Nonaccrual [Line Items]
Nonaccrual with No Allowance for Credit Loss	502	0
Nonaccrual with a related Allowance for Credit Loss	0	0
Total Nonaccrual	502	0
Loans 90 days or greater past due still accruing	0	0
Owner Occupied [Member]
Financing Receivable, Nonaccrual [Line Items]
Nonaccrual with No Allowance for Credit Loss	3,592	6,171
Nonaccrual with a related Allowance for Credit Loss	2,040	3,581
Total Nonaccrual	5,632	9,752
Loans 90 days or greater past due still accruing	249	0
Non-owner Occupied [Member]
Financing Receivable, Nonaccrual [Line Items]
Nonaccrual with No Allowance for Credit Loss	330	398
Nonaccrual with a related Allowance for Credit Loss	0	3,931
Total Nonaccrual	330	4,329
Loans 90 days or greater past due still accruing	0	0
First Liens [Member]
Financing Receivable, Nonaccrual [Line Items]
Nonaccrual with No Allowance for Credit Loss	9,920	1,975
Nonaccrual with a related Allowance for Credit Loss	0	0
Total Nonaccrual	9,920	1,975
Loans 90 days or greater past due still accruing	0	289
Second Liens and Lines of Credit [Member]
Financing Receivable, Nonaccrual [Line Items]
Nonaccrual with No Allowance for Credit Loss	461	482
Nonaccrual with a related Allowance for Credit Loss	0	0
Total Nonaccrual	461	482
Loans 90 days or greater past due still accruing	0	0
Municipal [Member]
Financing Receivable, Nonaccrual [Line Items]
Nonaccrual with No Allowance for Credit Loss	0	0
Nonaccrual with a related Allowance for Credit Loss	0	0
Total Nonaccrual	0	0
Loans 90 days or greater past due still accruing		0
Consumer [Member]
Financing Receivable, Nonaccrual [Line Items]
Nonaccrual with No Allowance for Credit Loss	0	0
Nonaccrual with a related Allowance for Credit Loss	0	0
Total Nonaccrual	0	0
Loans 90 days or greater past due still accruing	$ 0	$ 48