Loans and Leases - Amortized Cost of Loans to Borrowers Experiencing Financial Difficulty (Details) $ in Thousands	6 Months Ended
	Jun. 30, 2025 USD ($)
Loans and Leases [Abstract]
Amortized cost	$ 2,716	[1]
Percentage of total loan segment	0.075%
Commercial [Member]
Loans and Leases [Abstract]
Amortized cost	$ 0	[1]
Percentage of total loan segment	0.00%
Agricultural [Member]
Loans and Leases [Abstract]
Amortized cost	$ 2,639	[1]
Percentage of total loan segment	0.366%
Residential and Home Equity [Member]
Loans and Leases [Abstract]
Amortized cost	$ 34	[1]
Percentage of total loan segment	0.008%
Construction [Member]
Loans and Leases [Abstract]
Amortized cost	$ 0	[1]
Percentage of total loan segment	0.00%
Real Estate [Member]
Loans and Leases [Abstract]
Amortized cost	$ 2,673	[1]
Percentage of total loan segment	0.099%
Commercial & Industrial [Member]
Loans and Leases [Abstract]
Amortized cost	$ 0	[1]
Percentage of total loan segment	0.00%
Agricultural [Member]
Loans and Leases [Abstract]
Amortized cost	$ 43	[1]
Percentage of total loan segment	0.016%
Commercial Leases [Member]
Loans and Leases [Abstract]
Amortized cost	$ 0	[1]
Percentage of total loan segment	0.00%
Consumer and Other [Member]
Loans and Leases [Abstract]
Amortized cost	$ 0	[1]
Percentage of total loan segment	0.00%
Interest Rate Reduction [Member]
Loans and Leases [Abstract]
Amortized cost	$ 0
Interest Rate Reduction [Member] | Commercial [Member]
Loans and Leases [Abstract]
Amortized cost	0
Interest Rate Reduction [Member] | Agricultural [Member]
Loans and Leases [Abstract]
Amortized cost	0
Interest Rate Reduction [Member] | Residential and Home Equity [Member]
Loans and Leases [Abstract]
Amortized cost	0
Interest Rate Reduction [Member] | Construction [Member]
Loans and Leases [Abstract]
Amortized cost	0
Interest Rate Reduction [Member] | Real Estate [Member]
Loans and Leases [Abstract]
Amortized cost	0
Interest Rate Reduction [Member] | Commercial & Industrial [Member]
Loans and Leases [Abstract]
Amortized cost	0
Interest Rate Reduction [Member] | Agricultural [Member]
Loans and Leases [Abstract]
Amortized cost	0
Interest Rate Reduction [Member] | Commercial Leases [Member]
Loans and Leases [Abstract]
Amortized cost	0
Interest Rate Reduction [Member] | Consumer and Other [Member]
Loans and Leases [Abstract]
Amortized cost	0
Maturity or Term Extension [Member]
Loans and Leases [Abstract]
Amortized cost	1,060
Maturity or Term Extension [Member] | Commercial [Member]
Loans and Leases [Abstract]
Amortized cost	0
Maturity or Term Extension [Member] | Agricultural [Member]
Loans and Leases [Abstract]
Amortized cost	983
Maturity or Term Extension [Member] | Residential and Home Equity [Member]
Loans and Leases [Abstract]
Amortized cost	34
Maturity or Term Extension [Member] | Construction [Member]
Loans and Leases [Abstract]
Amortized cost	0
Maturity or Term Extension [Member] | Real Estate [Member]
Loans and Leases [Abstract]
Amortized cost	1,017
Maturity or Term Extension [Member] | Commercial & Industrial [Member]
Loans and Leases [Abstract]
Amortized cost	0
Maturity or Term Extension [Member] | Agricultural [Member]
Loans and Leases [Abstract]
Amortized cost	43
Maturity or Term Extension [Member] | Commercial Leases [Member]
Loans and Leases [Abstract]
Amortized cost	0
Maturity or Term Extension [Member] | Consumer and Other [Member]
Loans and Leases [Abstract]
Amortized cost	0
Principal Forgiveness [Member]
Loans and Leases [Abstract]
Amortized cost	0
Principal Forgiveness [Member] | Commercial [Member]
Loans and Leases [Abstract]
Amortized cost	0
Principal Forgiveness [Member] | Agricultural [Member]
Loans and Leases [Abstract]
Amortized cost	0
Principal Forgiveness [Member] | Residential and Home Equity [Member]
Loans and Leases [Abstract]
Amortized cost	0
Principal Forgiveness [Member] | Construction [Member]
Loans and Leases [Abstract]
Amortized cost	0
Principal Forgiveness [Member] | Real Estate [Member]
Loans and Leases [Abstract]
Amortized cost	0
Principal Forgiveness [Member] | Commercial & Industrial [Member]
Loans and Leases [Abstract]
Amortized cost	0
Principal Forgiveness [Member] | Agricultural [Member]
Loans and Leases [Abstract]
Amortized cost	0
Principal Forgiveness [Member] | Commercial Leases [Member]
Loans and Leases [Abstract]
Amortized cost	0
Principal Forgiveness [Member] | Consumer and Other [Member]
Loans and Leases [Abstract]
Amortized cost	0
Payment Deferral [Member]
Loans and Leases [Abstract]
Amortized cost	1,656
Payment Deferral [Member] | Commercial [Member]
Loans and Leases [Abstract]
Amortized cost	0
Payment Deferral [Member] | Agricultural [Member]
Loans and Leases [Abstract]
Amortized cost	1,656
Payment Deferral [Member] | Residential and Home Equity [Member]
Loans and Leases [Abstract]
Amortized cost	0
Payment Deferral [Member] | Construction [Member]
Loans and Leases [Abstract]
Amortized cost	0
Payment Deferral [Member] | Real Estate [Member]
Loans and Leases [Abstract]
Amortized cost	1,656
Payment Deferral [Member] | Commercial & Industrial [Member]
Loans and Leases [Abstract]
Amortized cost	0
Payment Deferral [Member] | Agricultural [Member]
Loans and Leases [Abstract]
Amortized cost	0
Payment Deferral [Member] | Commercial Leases [Member]
Loans and Leases [Abstract]
Amortized cost	0
Payment Deferral [Member] | Consumer and Other [Member]
Loans and Leases [Abstract]
Amortized cost	0
Multiple Modification Types [Member]
Loans and Leases [Abstract]
Amortized cost	0	[2]
Multiple Modification Types [Member] | Commercial [Member]
Loans and Leases [Abstract]
Amortized cost	0	[2]
Multiple Modification Types [Member] | Agricultural [Member]
Loans and Leases [Abstract]
Amortized cost	0	[2]
Multiple Modification Types [Member] | Residential and Home Equity [Member]
Loans and Leases [Abstract]
Amortized cost	0	[2]
Multiple Modification Types [Member] | Construction [Member]
Loans and Leases [Abstract]
Amortized cost	0	[2]
Multiple Modification Types [Member] | Real Estate [Member]
Loans and Leases [Abstract]
Amortized cost	0	[2]
Multiple Modification Types [Member] | Commercial & Industrial [Member]
Loans and Leases [Abstract]
Amortized cost	0	[2]
Multiple Modification Types [Member] | Agricultural [Member]
Loans and Leases [Abstract]
Amortized cost	0	[2]
Multiple Modification Types [Member] | Commercial Leases [Member]
Loans and Leases [Abstract]
Amortized cost	0	[2]
Multiple Modification Types [Member] | Consumer and Other [Member]
Loans and Leases [Abstract]
Amortized cost	$ 0	[2]

[1] Unfunded lending commitments related to loans modified to borrowers experiencing financial difficulty totaled $0 million at June 30, 2025.

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