Loans (Changes in the Allowance for Credit Losses) (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Financing Receivable, Allowance for Credit Losses [Line Items]
Beginning balance	$ 51,082	$ 45,413
Charge-offs	(6,511)	(5,108)
Recoveries	3,390	3,019
Provision (benefit)	(4,886)	4,204
Ending balance	43,075	47,528
Commercial Business [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Beginning balance	13,102	12,585
Charge-offs	(17)	(27)
Recoveries	54	151
Provision (benefit)	(148)	202
Ending balance	12,991	12,911
Commercial Mortgage [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Beginning balance	15,858	14,412
Charge-offs	0	0
Recoveries	1	2
Provision (benefit)	(1,746)	781
Ending balance	14,113	15,195
Residential Real Estate Loans [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Beginning balance	5,286	3,301
Charge-offs	(8)	(63)
Recoveries	4	5
Provision (benefit)	(652)	970
Ending balance	4,630	4,213
Residential Real Estate Lines [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Beginning balance	764	608
Charge-offs	0	(16)
Recoveries	0	0
Provision (benefit)	30	59
Ending balance	794	651
Consumer Indirect [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Beginning balance	14,099	14,238
Charge-offs	(6,217)	(4,620)
Recoveries	3,244	2,782
Provision (benefit)	(1,272)	1,717
Ending balance	9,854	14,117
Other Consumer [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Beginning balance	1,973	269
Charge-offs	(269)	(382)
Recoveries	87	79
Provision (benefit)	(1,098)	475
Ending balance	$ 693	$ 441