Allowance For Loan Losses (Schedule Of Troubled Debt Restructurings) (Details) $ in Thousands	3 Months Ended
Mar. 31, 2017 USD ($) contract	Mar. 31, 2016 USD ($) contract	Dec. 31, 2016 USD ($)
Financing Receivable, Modifications [Line Items]
Accruing	$ 31,899		$ 29,096
Non-Accruing	180		421
Total	$ 32,079		29,517
Number of Contracts \| contract	12	9
Pre-Modification Outstanding Recorded Investment	$ 4,203	$ 770
Post Modification Outstanding Recorded Investment	4,203	$ 770
Commercial And Industrial [Member]
Financing Receivable, Modifications [Line Items]
Accruing	38		42
Non-Accruing	0		0
Total	$ 38		42
Number of Contracts \| contract	0	0
Pre-Modification Outstanding Recorded Investment	$ 0	$ 0
Post Modification Outstanding Recorded Investment	0	$ 0
Commercial Real Estate [Member]
Financing Receivable, Modifications [Line Items]
Accruing	8,513		5,525
Non-Accruing	0		0
Total	$ 8,513		5,525
Number of Contracts \| contract	1	0
Pre-Modification Outstanding Recorded Investment	$ 3,015	$ 0
Post Modification Outstanding Recorded Investment	3,015	$ 0
Residential Real Estate [Member]
Financing Receivable, Modifications [Line Items]
Accruing	20,276		20,424
Non-Accruing	150		391
Total	$ 20,426		20,815
Number of Contracts \| contract	9	8
Pre-Modification Outstanding Recorded Investment	$ 1,130	$ 741
Post Modification Outstanding Recorded Investment	1,130	$ 741
Home Equity [Member]
Financing Receivable, Modifications [Line Items]
Accruing	3,072		3,105
Non-Accruing	30		30
Total	$ 3,102		3,135
Number of Contracts \| contract	2	1
Pre-Modification Outstanding Recorded Investment	$ 58	$ 29
Post Modification Outstanding Recorded Investment	58	$ 29
Consumer Loan [Member]
Financing Receivable, Modifications [Line Items]
Accruing	0		0
Non-Accruing	0		0
Total	$ 0		$ 0
Number of Contracts \| contract	0	0
Pre-Modification Outstanding Recorded Investment	$ 0	$ 0
Post Modification Outstanding Recorded Investment	$ 0	$ 0

Financing Receivable Modifications Recorded Investment Non Accruing Status For Troubled Debt Restructurings.

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- Definition

Financing Receivable Recorded Investment Accrual Status For Troubled Debt Restructurings

+ References

No definition available.

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+ References

No definition available.

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- Definition

Number of financing receivables that have been modified by troubled debt restructurings.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 33
-URI http://asc.fasb.org/extlink&oid=66008989&loc=SL6953676-111524

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Post-modification amount of investment in financing receivables modified by troubled debt restructurings.

+ References

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Pre-modification amount of investment in financing receivables modified by troubled debt restructurings.

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- Definition

The amount of the outstanding recorded investment related to financing receivables that have been modified by troubled debt restructurings.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 40
-Section 50
-Paragraph 4
-URI http://asc.fasb.org/extlink&oid=25495931&loc=d3e18845-111554

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Recorded Investment
-URI http://asc.fasb.org/extlink&oid=65880944

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