Loans and Leases - Amortized Cost of Loans to Borrowers Experiencing Financial Difficulty (Details) - USD ($) $ in Thousands		3 Months Ended
		Mar. 31, 2026		Mar. 31, 2025
Loans and Leases [Abstract]
Amortized cost		$ 4,937	[1]	$ 2,682	[2]
Percentage of total loan segment		0.14%		0.07%
Unfunded loan commitments		$ 0		$ 0
Commercial [Member]
Loans and Leases [Abstract]
Amortized cost		$ 730	[1]	$ 0	[2]
Percentage of total loan segment		0.05%		0.00%
Agricultural [Member]
Loans and Leases [Abstract]
Amortized cost		$ 0	[1]	$ 2,639	[2]
Percentage of total loan segment		0.00%		0.36%
Residential and Home Equity [Member]
Loans and Leases [Abstract]
Amortized cost		$ 37	[1]	$ 0	[2]
Percentage of total loan segment		0.01%		0.00%
Construction [Member]
Loans and Leases [Abstract]
Amortized cost		$ 0	[1]	$ 0	[2]
Percentage of total loan segment		0.00%		0.00%
Real Estate [Member]
Loans and Leases [Abstract]
Amortized cost		$ 767	[1]	$ 2,639	[2]
Percentage of total loan segment		0.03%		0.10%
Commercial & Industrial [Member]
Loans and Leases [Abstract]
Amortized cost		$ 4,170	[1]	$ 0	[2]
Percentage of total loan segment		0.90%		0.00%
Commercial & Industrial [Member]
Loans and Leases [Abstract]
Amortized cost		$ 0	[1]	$ 43	[2]
Percentage of total loan segment		0.00%		0.02%
Commercial Leases [Member]
Loans and Leases [Abstract]
Amortized cost		$ 0	[1]	$ 0	[2]
Percentage of total loan segment		0.00%		0.00%
Consumer and Other [Member]
Loans and Leases [Abstract]
Amortized cost		$ 0	[1]	$ 0	[2]
Percentage of total loan segment		0.00%		0.00%
Maturity or Term Extension [Member]
Loans and Leases [Abstract]
Amortized cost		$ 4,170		$ 1,026
Maturity or Term Extension [Member] | Commercial [Member]
Loans and Leases [Abstract]
Amortized cost		0		0
Maturity or Term Extension [Member] | Agricultural [Member]
Loans and Leases [Abstract]
Amortized cost		0		983
Maturity or Term Extension [Member] | Residential and Home Equity [Member]
Loans and Leases [Abstract]
Amortized cost		0		0
Maturity or Term Extension [Member] | Construction [Member]
Loans and Leases [Abstract]
Amortized cost		0		0
Maturity or Term Extension [Member] | Real Estate [Member]
Loans and Leases [Abstract]
Amortized cost		0		983
Maturity or Term Extension [Member] | Commercial & Industrial [Member]
Loans and Leases [Abstract]
Amortized cost		4,170		0
Maturity or Term Extension [Member] | Commercial & Industrial [Member]
Loans and Leases [Abstract]
Amortized cost		0		43
Maturity or Term Extension [Member] | Commercial Leases [Member]
Loans and Leases [Abstract]
Amortized cost		0		0
Maturity or Term Extension [Member] | Consumer and Other [Member]
Loans and Leases [Abstract]
Amortized cost		0		0
Payment Deferral [Member]
Loans and Leases [Abstract]
Amortized cost		730		0
Payment Deferral [Member] | Commercial [Member]
Loans and Leases [Abstract]
Amortized cost		730		0
Payment Deferral [Member] | Agricultural [Member]
Loans and Leases [Abstract]
Amortized cost		0		0
Payment Deferral [Member] | Residential and Home Equity [Member]
Loans and Leases [Abstract]
Amortized cost		0		0
Payment Deferral [Member] | Construction [Member]
Loans and Leases [Abstract]
Amortized cost		0		0
Payment Deferral [Member] | Real Estate [Member]
Loans and Leases [Abstract]
Amortized cost		730		0
Payment Deferral [Member] | Commercial & Industrial [Member]
Loans and Leases [Abstract]
Amortized cost		0		0
Payment Deferral [Member] | Commercial & Industrial [Member]
Loans and Leases [Abstract]
Amortized cost		0		0
Payment Deferral [Member] | Commercial Leases [Member]
Loans and Leases [Abstract]
Amortized cost		0		0
Payment Deferral [Member] | Consumer and Other [Member]
Loans and Leases [Abstract]
Amortized cost		0		0
Multiple Modification Types [Member]
Loans and Leases [Abstract]
Amortized cost		37		1,656	[3]
Multiple Modification Types [Member] | Commercial [Member]
Loans and Leases [Abstract]
Amortized cost	[3]	0		0
Multiple Modification Types [Member] | Agricultural [Member]
Loans and Leases [Abstract]
Amortized cost	[3]	0		1,656
Multiple Modification Types [Member] | Residential and Home Equity [Member]
Loans and Leases [Abstract]
Amortized cost	[3]	37		0
Multiple Modification Types [Member] | Construction [Member]
Loans and Leases [Abstract]
Amortized cost	[3]	0		0
Multiple Modification Types [Member] | Real Estate [Member]
Loans and Leases [Abstract]
Amortized cost	[3]	37		1,656
Multiple Modification Types [Member] | Commercial & Industrial [Member]
Loans and Leases [Abstract]
Amortized cost	[3]	0		0
Multiple Modification Types [Member] | Commercial & Industrial [Member]
Loans and Leases [Abstract]
Amortized cost	[3]	0		0
Multiple Modification Types [Member] | Commercial Leases [Member]
Loans and Leases [Abstract]
Amortized cost	[3]	0		0
Multiple Modification Types [Member] | Consumer and Other [Member]
Loans and Leases [Abstract]
Amortized cost	[3]	$ 0		$ 0

[1] Unfunded lending commitments related to loans modified to borrowers experiencing financial difficulty totaled $0 million at March 31, 2026.

[2] Unfunded lending commitments related to loans modified to borrowers experiencing financial difficulty totaled $0 million at March 31, 2025.

[3] Includes modifications that resulted from a combination of interest rate reduction, maturity or term extension, principal forgiveness, and payment deferral modifications.