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Allowance For Loan Losses (Schedule Of Troubled Debt Restructurings) (Details) $ in Thousands | 12 Months Ended
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Dec. 31, 2017 USD ($) contract | Dec. 31, 2016 USD ($) contract
Financing Receivable, Modifications [Line Items] |  |
Accruing | $ 32,568 | $ 29,096
Non-Accruing | 134 | 421
Total | $ 32,702 | $ 29,517
Number of Contracts | contract | 48 | 48
Pre-modification Outstanding Recorded Investment | $ 7,356 | $ 9,054
Post-modification Outstanding Recorded Investment | 7,261 | 8,399
Commercial and industrial |  |
Financing Receivable, Modifications [Line Items] |  |
Accruing | 135 | 42
Non-Accruing | 0 | 0
Total | $ 135 | $ 42
Number of Contracts | contract | 0 | 0
Pre-modification Outstanding Recorded Investment | $ 0 | $ 0
Post-modification Outstanding Recorded Investment | 0 | 0
Commercial real estate |  |
Financing Receivable, Modifications [Line Items] |  |
Accruing | 8,381 | 5,525
Non-Accruing | 0 | 0
Total | $ 8,381 | $ 5,525
Number of Contracts | contract | 2 | 2
Pre-modification Outstanding Recorded Investment | $ 3,098 | $ 5,021
Post-modification Outstanding Recorded Investment | 3,003 | 4,366
Residential real estate |  |
Financing Receivable, Modifications [Line Items] |  |
Accruing | 21,005 | 20,424
Non-Accruing | 84 | 391
Total | $ 21,089 | $ 20,815
Number of Contracts | contract | 33 | 37
Pre-modification Outstanding Recorded Investment | $ 3,987 | $ 3,812
Post-modification Outstanding Recorded Investment | 3,987 | 3,812
Home equity |  |
Financing Receivable, Modifications [Line Items] |  |
Accruing | 3,047 | 3,105
Non-Accruing | 50 | 30
Total | $ 3,097 | $ 3,135
Number of Contracts | contract | 13 | 9
Pre-modification Outstanding Recorded Investment | $ 271 | $ 221
Post-modification Outstanding Recorded Investment | 271 | 221
Consumer |  |
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

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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=82895541&loc=d3e18845-111554 + Details
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