Loans (Aging Of The Recorded Investment In Past Due Loans And Leases) (Details) - USD ($) $ in Thousands	Sep. 30, 2021	Dec. 31, 2020
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and Leases Receivable, Net of Deferred Income	$ 4,491,028	$ 3,402,940
Percent of Loans Considered Current	98.90%	98.80%
Construction
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and Leases Receivable, Net of Deferred Income	$ 174,784	$ 106,792
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, Current		106,444
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, Noncurrent	162	348
Commercial Real Estate Portfolio Segment [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, Current	1,608,138	918,984
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, Noncurrent	20,978	10,869
Commercial real estate, other
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and Leases Receivable, Net of Deferred Income	1,629,116	929,853
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, Current	851,724	967,991
Commercial and industrial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and Leases Receivable, Net of Deferred Income	858,538	973,645
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, Noncurrent	6,814	5,654
Residential real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, Current	755,994	559,068
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, Noncurrent	12,140	14,939
Home equity lines of credit
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and Leases Receivable, Net of Deferred Income	161,370	120,913
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, Current	159,959	119,766
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, Noncurrent	1,411	1,147
Consumer, indirect
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and Leases Receivable, Net of Deferred Income	543,256	503,527
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, Current	539,456	498,084
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, Noncurrent	3,800	5,443
Consumer, direct
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and Leases Receivable, Net of Deferred Income	108,702	79,094
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, Current	108,243	78,504
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, Noncurrent	459	590
Deposit account overdrafts
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, Current	927	351
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, Noncurrent	0	0
Total loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and Leases Receivable, Net of Deferred Income	4,491,028	3,402,940
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, Current	4,441,852	3,361,745
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, Noncurrent	49,176	41,195
Premium finance
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and Leases Receivable, Net of Deferred Income	134,755	114,758
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, Current	133,666	112,553
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, Noncurrent	1,089	2,205
Finance Leases Portfolio Segment
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and Leases Receivable, Net of Deferred Income	111,446
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, Current	109,123
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, Noncurrent	2,323
Construction
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, Current	174,622
30 - 59 days | Construction
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, Noncurrent	146	0
30 - 59 days | Commercial Real Estate Portfolio Segment [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, Noncurrent	4,513	1,943
30 - 59 days | Commercial and industrial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, Noncurrent	924	567
30 - 59 days | Residential real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, Noncurrent	4,138	6,739
30 - 59 days | Home equity lines of credit
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, Noncurrent	487	309
30 - 59 days | Consumer, indirect
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, Noncurrent	2,977	4,362
30 - 59 days | Consumer, direct
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, Noncurrent	134	424
30 - 59 days | Deposit account overdrafts
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, Noncurrent	0	0
30 - 59 days | Total loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, Noncurrent	14,152	15,272
30 - 59 days | Premium finance
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, Noncurrent	440	928
30 - 59 days | Finance Leases Portfolio Segment
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, Noncurrent	393
60 - 89 days | Construction
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, Noncurrent	16	344
60 - 89 days | Commercial Real Estate Portfolio Segment [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, Noncurrent	2,349	283
60 - 89 days | Commercial and industrial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, Noncurrent	566	552
60 - 89 days | Residential real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, Noncurrent	2,649	2,688
60 - 89 days | Home equity lines of credit
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, Noncurrent	166	58
60 - 89 days | Consumer, indirect
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, Noncurrent	477	733
60 - 89 days | Consumer, direct
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, Noncurrent	224	43
60 - 89 days | Deposit account overdrafts
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, Noncurrent	0	0
60 - 89 days | Total loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, Noncurrent	6,922	5,774
60 - 89 days | Premium finance
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, Noncurrent	281	1,073
60 - 89 days | Finance Leases Portfolio Segment
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, Noncurrent	194
90 + Days | Construction
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, Noncurrent	0	4
90 + Days | Commercial Real Estate Portfolio Segment [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, Noncurrent	14,116	8,643
90 + Days | Commercial and industrial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, Noncurrent	5,324	4,535
90 + Days | Residential real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, Noncurrent	5,353	5,512
90 + Days | Home equity lines of credit
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, Noncurrent	758	780
90 + Days | Consumer, indirect
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, Noncurrent	346	348
90 + Days | Consumer, direct
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, Noncurrent	101	123
90 + Days | Deposit account overdrafts
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, Noncurrent	0	0
90 + Days | Total loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, Noncurrent	28,102	20,149
90 + Days | Premium finance
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, Noncurrent	368	$ 204
90 + Days | Finance Leases Portfolio Segment
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, Noncurrent	$ 1,736