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Loans (Changes in the Allowance for Credit Losses) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Financing Receivable, Allowance for Credit Losses [Line Items]
Beginning balance	$ 45,413	$ 39,676	$ 52,420
Charge-offs	(20,769)	(16,720)	(13,219)
Recoveries	12,225	11,482	7,459
Provision (benefit)	14,213	10,975	(6,984)
Ending balance	51,082	45,413	39,676
Commercial Business [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Beginning balance	12,585	11,099	13,580
Charge-offs	(282)	(312)	(669)
Recoveries	391	376	881
Provision (benefit)	408	1,422	(2,693)
Ending balance	13,102	12,585	11,099
Commercial Mortgage [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Beginning balance	14,412	14,777	21,763
Charge-offs	(1,012)	(1,170)	(3,999)
Recoveries	977	2,023	185
Provision (benefit)	1,481	(1,218)	(3,172)
Ending balance	15,858	14,412	14,777
Residential Real Estate Loans [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Beginning balance	3,301	1,604	3,924
Charge-offs	(127)	(303)	(148)
Recoveries	38	24	92
Provision (benefit)	2,074	1,976	(2,264)
Ending balance	5,286	3,301	1,604
Residential Real Estate Lines [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Beginning balance	608	379	674
Charge-offs	(41)	(38)	(141)
Recoveries	0	39	0
Provision (benefit)	197	228	(154)
Ending balance	764	608	379
Consumer Indirect [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Beginning balance	14,238	11,611	12,165
Charge-offs	(18,023)	(13,215)	(7,236)
Recoveries	10,428	8,677	5,980
Provision (benefit)	7,456	7,165	702
Ending balance	14,099	14,238	11,611
Other Consumer [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Beginning balance	269	206	314
Charge-offs	(1,284)	(1,682)	(1,026)
Recoveries	391	343	321
Provision (benefit)	2,597	1,402	597
Ending balance	$ 1,973	$ 269	$ 206

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