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Loans (Changes In The Allowance For Loan Losses) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance for loan losses, Beginning balance	$ 33,914	$ 34,672	$ 30,934
Allowance for loan losses, Charge-offs	(17,811)	(15,734)	(15,251)
Allowance for loan losses, Recoveries	6,335	6,042	5,628
Allowance for loan losses, Provision (credit)	8,044	8,934	13,361
Allowance for loan losses, Ending balance	30,482	33,914	34,672
Allowance for loan losses, Individually Evaluated for impairment	693	206	2,108
Allowance for loan losses, Collectively Evaluated for impairment	29,789	33,708	32,564
Loans, Ending balance	3,179,465	3,044,320	2,694,922
Loans, Individually Evaluated for impairment	4,323	3,078	8,174
Loans, Collectively Evaluated for impairment	3,175,142	3,041,242	2,686,748
Commercial Business [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance for loan losses, Beginning balance	14,312	15,668	7,225
Allowance for loan losses, Charge-offs	(2,481)	(2,319)	(3,614)
Allowance for loan losses, Recoveries	492	509	416
Allowance for loan losses, Provision (credit)	(965)	454	11,641
Allowance for loan losses, Ending balance	11,358	14,312	15,668
Allowance for loan losses, Individually Evaluated for impairment	214	205	2,001
Allowance for loan losses, Collectively Evaluated for impairment	11,144	14,107	13,667
Loans, Ending balance	571,222	557,040	449,763
Loans, Individually Evaluated for impairment	1,177	1,044	5,322
Loans, Collectively Evaluated for impairment	570,045	555,996	444,441
Commercial Mortgage [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance for loan losses, Beginning balance	5,219	3,696	10,315
Allowance for loan losses, Charge-offs	(2,997)	(1,020)	(10)
Allowance for loan losses, Recoveries	17	13	262
Allowance for loan losses, Provision (credit)	3,442	2,530	(6,871)
Allowance for loan losses, Ending balance	5,681	5,219	3,696
Allowance for loan losses, Individually Evaluated for impairment	479	1	107
Allowance for loan losses, Collectively Evaluated for impairment	5,202	5,218	3,589
Loans, Ending balance	1,108,315	960,265	810,851
Loans, Individually Evaluated for impairment	3,146	2,034	2,852
Loans, Collectively Evaluated for impairment	1,105,169	958,231	807,999
Residential Real Estate Loans [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance for loan losses, Beginning balance	1,112	1,322	1,478
Allowance for loan losses, Charge-offs	(340)	(95)	(431)
Allowance for loan losses, Recoveries	43	159	130
Allowance for loan losses, Provision (credit)	244	(274)	145
Allowance for loan losses, Ending balance	1,059	1,112	1,322
Allowance for loan losses, Collectively Evaluated for impairment	1,059	1,112	1,322
Loans, Ending balance	560,717	514,981	457,761
Loans, Collectively Evaluated for impairment	560,717	514,981	457,761
Residential Real Estate Lines [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance for loan losses, Beginning balance	210	180	303
Allowance for loan losses, Charge-offs	(13)	(142)	(106)
Allowance for loan losses, Recoveries	6	20	60
Allowance for loan losses, Provision (credit)	(85)	152	(77)
Allowance for loan losses, Ending balance	118	210	180
Allowance for loan losses, Collectively Evaluated for impairment	118	210	180
Loans, Ending balance	101,048	106,712	113,422
Loans, Collectively Evaluated for impairment	101,048	106,712	113,422
Consumer Indirect [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance for loan losses, Beginning balance	12,572	13,415	11,311
Allowance for loan losses, Charge-offs	(10,810)	(10,850)	(10,164)
Allowance for loan losses, Recoveries	5,390	5,024	4,444
Allowance for loan losses, Provision (credit)	4,700	4,983	7,824
Allowance for loan losses, Ending balance	11,852	12,572	13,415
Allowance for loan losses, Collectively Evaluated for impairment	11,852	12,572	13,415
Loans, Ending balance	822,179	888,732	845,682
Loans, Collectively Evaluated for impairment	822,179	888,732	845,682
Other Consumer [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance for loan losses, Beginning balance	489	391	302
Allowance for loan losses, Charge-offs	(1,170)	(1,308)	(926)
Allowance for loan losses, Recoveries	387	317	316
Allowance for loan losses, Provision (credit)	708	1,089	699
Allowance for loan losses, Ending balance	414	489	391
Allowance for loan losses, Collectively Evaluated for impairment	414	489	391
Loans, Ending balance	15,984	16,590	17,443
Loans, Collectively Evaluated for impairment	$ 15,984	$ 16,590	$ 17,443

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- Definition

Amount of allowance for credit loss on financing receivable. Excludes allowance for financing receivable covered under loss sharing agreement.

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