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Loans and ACL - Summary of Loan Modifications by Type (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024
Interest Rate Reduction
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized Cost Basis	$ 18	$ 132
Other-Than-Insignificant Payment Delay
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized Cost Basis	1,474	3,905
Term Extension
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized Cost Basis	5,403	1,645
Other-Than-Insignificant Payment Delay and Term Extension
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized Cost Basis	975	1,107
Commercial and industrial: Secured | Interest Rate Reduction
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized Cost Basis	$ 18	$ 0
% of Total Class of Financial Receivable	0.01%	0.00%
Commercial and industrial: Secured | Other-Than-Insignificant Payment Delay
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized Cost Basis	$ 0	$ 1,782
% of Total Class of Financial Receivable	0.00%	0.80%
Commercial and industrial: Secured | Term Extension
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized Cost Basis	$ 3,144	$ 10
% of Total Class of Financial Receivable	1.66%	0.00%
Commercial and industrial: Secured | Other-Than-Insignificant Payment Delay and Term Extension
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized Cost Basis	$ 975	$ 0
% of Total Class of Financial Receivable	0.52%	0.00%
Commercial mortgage owner occupied | Interest Rate Reduction
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized Cost Basis	$ 0	$ 0
% of Total Class of Financial Receivable	0.00%	0.00%
Commercial mortgage owner occupied | Other-Than-Insignificant Payment Delay
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized Cost Basis	$ 0	$ 818
% of Total Class of Financial Receivable	0.00%	0.46%
Commercial mortgage owner occupied | Term Extension
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized Cost Basis	$ 1,483	$ 1,353
% of Total Class of Financial Receivable	0.65%	0.76%
Commercial mortgage owner occupied | Other-Than-Insignificant Payment Delay and Term Extension
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized Cost Basis	$ 0	$ 0
% of Total Class of Financial Receivable	0.00%	0.00%
Agricultural mortgage | Interest Rate Reduction
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized Cost Basis	$ 0	$ 0
% of Total Class of Financial Receivable	0.00%	0.00%
Agricultural mortgage | Other-Than-Insignificant Payment Delay
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized Cost Basis	$ 1,389	$ 1,305
% of Total Class of Financial Receivable	1.99%	1.93%
Agricultural mortgage | Term Extension
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized Cost Basis	$ 0	$ 281
% of Total Class of Financial Receivable	0.00%	0.42%
Agricultural mortgage | Other-Than-Insignificant Payment Delay and Term Extension
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized Cost Basis	$ 0	$ 0
% of Total Class of Financial Receivable	0.00%	0.00%
Agricultural other | Interest Rate Reduction
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized Cost Basis	$ 0	$ 132
% of Total Class of Financial Receivable	0.00%	0.41%
Agricultural other | Other-Than-Insignificant Payment Delay
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized Cost Basis	$ 0	$ 0
% of Total Class of Financial Receivable	0.00%	0.00%
Agricultural other | Term Extension
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized Cost Basis	$ 776	$ 0
% of Total Class of Financial Receivable	2.40%	0.00%
Agricultural other | Other-Than-Insignificant Payment Delay and Term Extension
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized Cost Basis	$ 0	$ 1,107
% of Total Class of Financial Receivable	0.00%	3.44%
Residential real estate: Senior Lien | Interest Rate Reduction
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized Cost Basis	$ 0
% of Total Class of Financial Receivable	0.00%
Residential real estate: Senior Lien | Other-Than-Insignificant Payment Delay
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized Cost Basis	$ 85
% of Total Class of Financial Receivable	0.02%
Residential real estate: Senior Lien | Term Extension
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized Cost Basis	$ 0
% of Total Class of Financial Receivable	0.00%
Residential real estate: Senior Lien | Other-Than-Insignificant Payment Delay and Term Extension
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized Cost Basis	$ 0
% of Total Class of Financial Receivable	0.00%
Consumer: Secured - indirect | Interest Rate Reduction
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized Cost Basis		$ 0
% of Total Class of Financial Receivable		0.00%
Consumer: Secured - indirect | Other-Than-Insignificant Payment Delay
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized Cost Basis		$ 0
% of Total Class of Financial Receivable		0.00%
Consumer: Secured - indirect | Term Extension
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized Cost Basis		$ 1
% of Total Class of Financial Receivable		0.00%
Consumer: Secured - indirect | Other-Than-Insignificant Payment Delay and Term Extension
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized Cost Basis		$ 0
% of Total Class of Financial Receivable		0.00%

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