Loans (Recorded Investment By Loan Class In Current And Nonaccrual Loans) (Details) - USD ($) $ in Thousands	Sep. 30, 2015	Dec. 31, 2014	Sep. 30, 2014
Financing Receivable, Recorded Investment, Past Due [Line Items]
30-59 Days Past Due	$ 3,658	$ 3,808
60-89 Days Past Due	531	517
Greater Than 90 Days	8	8
Total Past Due	4,197	4,333
Nonaccrual	8,485	10,145
Current	1,992,743	1,866,593
Total loans	2,005,425	1,881,071	$ 1,876,375
Commercial Business [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
30-59 Days Past Due	657	28
Total Past Due	657	28
Nonaccrual	3,064	4,288
Current	293,919	263,061
Total loans	297,640	267,377	275,027
Commercial Mortgage [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
30-59 Days Past Due	383	83
60-89 Days Past Due	9
Total Past Due	392	83
Nonaccrual	1,802	3,020
Current	547,717	473,304
Total loans	549,911	476,407	470,566
Residential Mortgage [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
30-59 Days Past Due	99	321
Total Past Due	99	321
Nonaccrual	1,523	1,194
Current	94,676	98,726
Total loans	96,298	100,241	103,183
Home Equity [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
30-59 Days Past Due	709	799
60-89 Days Past Due	122	67
Total Past Due	831	866
Nonaccrual	792	463
Current	399,480	378,445
Total loans	401,103	379,774	376,062
Consumer Indirect [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
30-59 Days Past Due	1,710	2,429
60-89 Days Past Due	338	402
Total Past Due	2,048	2,831
Nonaccrual	1,292	1,169
Current	638,113	632,357
Total loans	641,453	636,357	630,441
Other Consumer [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
30-59 Days Past Due	100	148
60-89 Days Past Due	62	48
Greater Than 90 Days	8	8
Total Past Due	170	204
Nonaccrual	12	11
Current	18,838	20,700
Total loans	$ 19,020	$ 20,915	$ 21,096

Financing receivables that are less than 60 days past due but more than 29 days past due.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 310

-SubTopic 10

-Section 50

-Paragraph 7A

-URI http://asc.fasb.org/extlink&oid=35738203&loc=SL6953401-111524

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Financing receivables that are less than 90 days past due but more than 59 days past due.

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Financing receivables that are current.

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- Definition

Recorded investment in financing receivables that are on nonaccrual status as of the balance sheet date.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 310

-SubTopic 10

-Section 50

-Paragraph 7

-Subparagraph (d)

-URI http://asc.fasb.org/extlink&oid=35738203&loc=d3e5111-111524

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Recorded Investment in financing receivables that are past due at the balance sheet date.

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+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 942

-SubTopic 210

-Section S99

-Paragraph 1

-Subparagraph (SX 210.9-03.10(3))

-URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 03

-Paragraph 10

-Subparagraph 3

-Article 9

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