Allowance For Loan Losses (Schedule Of Troubled Debt Restructurings) (Details) $ in Thousands	6 Months Ended
Jun. 30, 2017 USD ($) contract	Jun. 30, 2016 USD ($) contract	Dec. 31, 2016 USD ($)
Financing Receivable, Modifications [Line Items]
Accruing	$ 32,311		$ 29,096
Non-Accruing	154		421
Total	$ 32,465		29,517
Number of Contracts \| contract	24	24
Pre-Modification Outstanding Recorded Investment	$ 2,747	$ 4,151
Post Modification Outstanding Recorded Investment	2,747	$ 4,151
Commercial And Industrial [Member]
Financing Receivable, Modifications [Line Items]
Accruing	35		42
Non-Accruing	0		0
Total	$ 35		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	8,483		5,525
Non-Accruing	0		0
Total	$ 8,483		5,525
Number of Contracts \| contract	0	1
Pre-Modification Outstanding Recorded Investment	$ 0	$ 2,225
Post Modification Outstanding Recorded Investment	0	$ 2,225
Residential Real Estate [Member]
Financing Receivable, Modifications [Line Items]
Accruing	20,647		20,424
Non-Accruing	154		391
Total	$ 20,801		20,815
Number of Contracts \| contract	19	20
Pre-Modification Outstanding Recorded Investment	$ 2,593	$ 1,857
Post Modification Outstanding Recorded Investment	2,593	$ 1,857
Home Equity [Member]
Financing Receivable, Modifications [Line Items]
Accruing	3,146		3,105
Non-Accruing	0		30
Total	$ 3,146		3,135
Number of Contracts \| contract	5	3
Pre-Modification Outstanding Recorded Investment	$ 154	$ 69
Post Modification Outstanding Recorded Investment	154	$ 69
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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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ 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.

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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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