Loans and Leases, Changes in Allowance for Credit Losses (Details) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
	Sep. 30, 2022	Sep. 30, 2022
Allowance for Credit Losses [Roll Forward]
Beginning balance	$ 62,080	$ 61,007
Provision / (recapture) for credit losses	1,499	2,606
Charge-offs	(68)	(362)
Recoveries	106	366
Net (charge-offs) / recoveries	38	4
Ending balance	63,617	63,617
Cumulative Effect, Period of Adoption, Adjustment [Member] | ASC 326 [Member]
Allowance for Credit Losses [Roll Forward]
Beginning balance		0
Commercial & Agricultural R/E [Member]
Allowance for Credit Losses [Roll Forward]
Beginning balance	34,716	38,149
Provision / (recapture) for credit losses	(1,616)	(5,049)
Charge-offs	0	0
Recoveries	0	0
Net (charge-offs) / recoveries	0	0
Ending balance	33,100	33,100
Commercial & Agricultural R/E [Member] | Cumulative Effect, Period of Adoption, Adjustment [Member] | ASC 326 [Member]
Allowance for Credit Losses [Roll Forward]
Beginning balance		0
Construction [Member]
Allowance for Credit Losses [Roll Forward]
Beginning balance	2,876	1,456
Provision / (recapture) for credit losses	119	1,539
Charge-offs	0	0
Recoveries	0	0
Net (charge-offs) / recoveries	0	0
Ending balance	2,995	2,995
Construction [Member] | Cumulative Effect, Period of Adoption, Adjustment [Member] | ASC 326 [Member]
Allowance for Credit Losses [Roll Forward]
Beginning balance		0
Residential & Home Equity [Member]
Allowance for Credit Losses [Roll Forward]
Beginning balance	6,874	2,847
Provision / (recapture) for credit losses	(15)	3,893
Charge-offs	0	0
Recoveries	6	125
Net (charge-offs) / recoveries	6	125
Ending balance	6,865	6,865
Residential & Home Equity [Member] | Cumulative Effect, Period of Adoption, Adjustment [Member] | ASC 326 [Member]
Allowance for Credit Losses [Roll Forward]
Beginning balance		0
Commercial & Agricultural [Member]
Allowance for Credit Losses [Roll Forward]
Beginning balance	15,808	16,954
Provision / (recapture) for credit losses	3,063	2,058
Charge-offs	(48)	(324)
Recoveries	92	227
Net (charge-offs) / recoveries	44	(97)
Ending balance	18,915	18,915
Commercial & Agricultural [Member] | Cumulative Effect, Period of Adoption, Adjustment [Member] | ASC 326 [Member]
Allowance for Credit Losses [Roll Forward]
Beginning balance		0
Commercial Leases [Member]
Allowance for Credit Losses [Roll Forward]
Beginning balance	1,645	938
Provision / (recapture) for credit losses	(57)	650
Charge-offs	0	0
Recoveries	0	0
Net (charge-offs) / recoveries	0	0
Ending balance	1,588	1,588
Commercial Leases [Member] | Cumulative Effect, Period of Adoption, Adjustment [Member] | ASC 326 [Member]
Allowance for Credit Losses [Roll Forward]
Beginning balance		0
Consumer and Other [Member]
Allowance for Credit Losses [Roll Forward]
Beginning balance	161	663
Provision / (recapture) for credit losses	5	(485)
Charge-offs	(20)	(38)
Recoveries	8	14
Net (charge-offs) / recoveries	(12)	(24)
Ending balance	$ 154	154
Consumer and Other [Member] | Cumulative Effect, Period of Adoption, Adjustment [Member] | ASC 326 [Member]
Allowance for Credit Losses [Roll Forward]
Beginning balance		$ 0