Allowance For Credit Losses (Financing Receivable, Allowance for Credit Loss) (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Allowance for loan loss, Beginning balance	$ 24,393	$ 14,646	$ 11,589	$ 15,966
Impact of adopting CECL			(2,335)
Allowance for loan loss, Charge-offs	(1,071)	(1,257)	(2,817)	(2,486)
Allowance for loan loss, Recoveries	627	1,006	1,445	1,764
Allowance for loan loss, Provision	1,250	(600)	9,222	(1,449)
Allowance for loan loss, Ending balance	25,199	13,795	25,199	13,795
Accounting Standards Update 2016-13
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Impact of adopting CECL			5,760
Commercial and industrial
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Allowance for loan loss, Beginning balance	5,855	2,970	2,059	4,060
Allowance for loan loss, Charge-offs	0	(51)	(77)	(51)
Allowance for loan loss, Recoveries	5	5	14	140
Allowance for loan loss, Provision	406	(128)	2,555	(1,353)
Allowance for loan loss, Ending balance	6,266	2,796	6,266	2,796
Commercial and industrial \| Accounting Standards Update 2016-13
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Impact of adopting CECL			1,715
Commercial real estate
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Allowance for loan loss, Beginning balance	9,389	4,640	2,606	4,495
Allowance for loan loss, Charge-offs	(39)	(133)	(422)	(178)
Allowance for loan loss, Recoveries	128	575	331	607
Allowance for loan loss, Provision	612	(1,613)	4,321	(1,455)
Allowance for loan loss, Ending balance	10,090	3,469	10,090	3,469
Commercial real estate \| Accounting Standards Update 2016-13
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Impact of adopting CECL			3,254
Residential real estate
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Allowance for loan loss, Beginning balance	6,958	3,820	3,448	4,116
Allowance for loan loss, Charge-offs	(376)	(303)	(859)	(631)
Allowance for loan loss, Recoveries	8	50	103	125
Allowance for loan loss, Provision	733	392	2,492	349
Allowance for loan loss, Ending balance	7,323	3,959	7,323	3,959
Residential real estate \| Accounting Standards Update 2016-13
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Impact of adopting CECL			2,139
Home equity
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Allowance for loan loss, Beginning balance	702	1,248	1,187	1,268
Allowance for loan loss, Charge-offs	(161)	(71)	(206)	(117)
Allowance for loan loss, Recoveries	9	0	56	0
Allowance for loan loss, Provision	97	34	208	60
Allowance for loan loss, Ending balance	647	1,211	647	1,211
Home equity \| Accounting Standards Update 2016-13
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Impact of adopting CECL			(598)
Consumer
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Allowance for loan loss, Beginning balance	233	468	975	319
Allowance for loan loss, Charge-offs	(36)	(111)	(91)	(296)
Allowance for loan loss, Recoveries	128	46	141	143
Allowance for loan loss, Provision	(205)	106	(95)	343
Allowance for loan loss, Ending balance	120	509	120	509
Consumer \| Accounting Standards Update 2016-13
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Impact of adopting CECL			(810)
DDA overdrafts
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Allowance for loan loss, Beginning balance	1,256	1,500	1,314	1,708
Allowance for loan loss, Charge-offs	(459)	(588)	(1,162)	(1,213)
Allowance for loan loss, Recoveries	349	330	800	749
Allowance for loan loss, Provision	(393)	609	(259)	607
Allowance for loan loss, Ending balance	$ 753	$ 1,851	753	$ 1,851
DDA overdrafts \| Accounting Standards Update 2016-13
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Impact of adopting CECL			$ 60

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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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Amount of increase in allowance for credit loss on financing receivable from recovery.

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A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

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Amount of writeoff of financing receivable, charged against allowance for credit loss.

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Amount of expense related loan transactions, lease transactions, credit loss from transactions other than loan and lease transactions, and other loss based on assessment of uncollectability from the counterparty to reduce the account to their net realizable value.

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