Loans, Financial Effect of Modifications Made to Borrowers Experiencing Financial Difficulty (Details)	3 Months Ended		6 Months Ended
	Jun. 30, 2025	Jun. 30, 2024	Jun. 30, 2025	Jun. 30, 2024
Interest Rate Reduction [Member] | Commercial Real Estate Nonresidential [Member]
Financial Effect of Modifications Made to Borrowers Experiencing Financial Difficulty [Abstract]
Weighted-average contractual interest rate, pre-modification	7.50%		7.50%
Weighted-average contractual interest rate, post-modification	2.00%		2.10%
Interest Rate Reduction [Member] | Real Estate Mortgage [Member]
Financial Effect of Modifications Made to Borrowers Experiencing Financial Difficulty [Abstract]
Weighted-average contractual interest rate, pre-modification	8.20%	7.50%	7.80%	8.10%
Weighted-average contractual interest rate, post-modification	3.80%	5.00%	4.40%	5.00%
Term Extension [Member] | Commercial Real Estate Residential [Member]
Financial Effect of Modifications Made to Borrowers Experiencing Financial Difficulty [Abstract]
Weighted-average term increased	1 year	3 months 18 days	1 year	3 months 18 days
Term Extension [Member] | Commercial Real Estate Nonresidential [Member]
Financial Effect of Modifications Made to Borrowers Experiencing Financial Difficulty [Abstract]
Weighted-average term increased			6 months
Term Extension [Member] | Commercial Other [Member]
Financial Effect of Modifications Made to Borrowers Experiencing Financial Difficulty [Abstract]
Weighted-average term increased	1 year 10 months 24 days	1 month 6 days	4 years 2 months 12 days	3 months 18 days
Term Extension [Member] | Real Estate Mortgage [Member]
Financial Effect of Modifications Made to Borrowers Experiencing Financial Difficulty [Abstract]
Weighted-average term increased	3 months 18 days	4 months 24 days	4 months 24 days	4 months 24 days
Term Extension [Member] | Home Equity Lines [Member]
Financial Effect of Modifications Made to Borrowers Experiencing Financial Difficulty [Abstract]
Weighted-average term increased	4 years 8 months 12 days		2 years 10 months 24 days	6 months
Term Extension [Member] | Consumer Direct [Member]
Financial Effect of Modifications Made to Borrowers Experiencing Financial Difficulty [Abstract]
Weighted-average term increased	3 months 18 days		3 months 18 days	1 month 6 days
Term Extension [Member] | Consumer Indirect [Member]
Financial Effect of Modifications Made to Borrowers Experiencing Financial Difficulty [Abstract]
Weighted-average term increased	9 months 18 days	1 year 1 month 6 days	10 months 24 days	3 months 18 days
Combination - Term Extension and Interest Rate Reduction [Member] | Commercial Real Estate Residential [Member]
Financial Effect of Modifications Made to Borrowers Experiencing Financial Difficulty [Abstract]
Weighted-average contractual interest rate				8.50%
Weighted-average contractual interest rate, pre-modification	9.50%		9.20%
Weighted-average contractual interest rate, post-modification	8.80%		8.20%
Weighted-average term increased	20 years		16 years	4 years
Combination - Term Extension and Interest Rate Reduction [Member] | Commercial Real Estate Nonresidential [Member]
Financial Effect of Modifications Made to Borrowers Experiencing Financial Difficulty [Abstract]
Weighted-average contractual interest rate, pre-modification		6.00%		6.00%
Weighted-average contractual interest rate, post-modification		8.50%		8.50%
Weighted-average term increased		10 years 3 months 18 days		10 years 3 months 18 days
Combination - Term Extension and Interest Rate Reduction [Member] | Commercial Other [Member]
Financial Effect of Modifications Made to Borrowers Experiencing Financial Difficulty [Abstract]
Weighted-average contractual interest rate, pre-modification	10.00%		6.50%	9.50%
Weighted-average contractual interest rate, post-modification	8.00%		8.00%	8.50%
Weighted-average term increased	10 months 24 days		6 years 6 months	2 years 4 months 24 days
Combination - Term Extension and Interest Rate Reduction [Member] | Real Estate Mortgage [Member]
Financial Effect of Modifications Made to Borrowers Experiencing Financial Difficulty [Abstract]
Weighted-average contractual interest rate, pre-modification	5.20%	8.00%	5.30%	5.70%
Weighted-average contractual interest rate, post-modification	3.80%	4.30%	3.70%	5.10%
Weighted-average term increased	5 years 8 months 12 days	13 years 2 months 12 days	5 years 3 months 18 days	6 years 4 months 24 days
Combination - Term Extension and Interest Rate Reduction [Member] | Home Equity Lines [Member]
Financial Effect of Modifications Made to Borrowers Experiencing Financial Difficulty [Abstract]
Weighted-average contractual interest rate	7.50%		7.50%
Weighted-average contractual interest rate, pre-modification		9.30%		9.60%
Weighted-average contractual interest rate, post-modification		8.70%		8.60%
Weighted-average term increased	4 years 7 months 6 days	3 years 3 months 18 days	4 years 7 months 6 days	10 years 2 months 12 days