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Allowance For Loan Losses (Schedule Of Aging Analysis Of Accruing And Non-Accruing Loans) (Details) - USD ($) $ in Thousands | 6 Months Ended |
--- | --- | ---
Jun. 30, 2016 | Jun. 30, 2015 | Dec. 31, 2015
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |
Past Due Threshold in Days | 30 days |  |
Threshold Period Past Due for Write-off of Financing Receivable |  | 30 days |
Current | $ 2,879,624 |  | $ 2,836,419
Financing Receivable, Acquired with Deteriorated Credit Quality, Recorded Investment, Past Due | 516 |  | 506
Non-accrual | 15,199 |  | 16,948
Gross loans | $ 2,903,398 |  | 2,862,534
Residential Real Estate [Member] |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |
Threshold Period Past Due for Write-off of Financing Receivable | 120 days | 120 days |
Current | $ 1,409,116 |  | 1,373,604
Financing Receivable, Acquired with Deteriorated Credit Quality, Recorded Investment, Past Due | 0 |  | 0
Non-accrual | 2,531 |  | 2,918
Gross loans | 1,417,137 |  | 1,383,133
Home equity - junior lien [Member] |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |
Current | 142,067 |  | 146,493
Financing Receivable, Acquired with Deteriorated Credit Quality, Recorded Investment, Past Due | 0 |  | 0
Non-accrual | 165 |  | 136
Gross loans | 142,827 |  | 147,036
Commercial And Industrial [Member] |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |
Current | 168,334 |  | 162,435
Financing Receivable, Acquired with Deteriorated Credit Quality, Recorded Investment, Past Due | 0 |  | 0
Non-accrual | 2,724 |  | 2,745
Gross loans | 171,362 |  | 165,340
Commercial Real Estate [Member] |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |
Current | 1,123,968 |  | 1,114,953
Financing Receivable, Acquired with Deteriorated Credit Quality, Recorded Investment, Past Due | 516 |  | 506
Non-accrual | 9,779 |  | 11,149
Gross loans | $ 1,135,493 |  | 1,127,581
Consumer Loan [Member] |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |
Threshold Period Past Due for Write-off of Financing Receivable | 180 days | 180 days |
Current | $ 33,649 |  | 35,886
Financing Receivable, Acquired with Deteriorated Credit Quality, Recorded Investment, Past Due | 0 |  | 0
Non-accrual | 0 |  | 0
Gross loans | 33,799 |  | 36,083
Demand Deposit Account Overdrafts [Member] |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |
Current | 2,490 |  | 3,048
Financing Receivable, Acquired with Deteriorated Credit Quality, Recorded Investment, Past Due | 0 |  | 0
Non-accrual | 0 |  | 0
Gross loans | $ 2,780 |  | 3,361
Commercial Industrial Loans And Commercial Real Estate [Member] |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |
Threshold Period Past Due for Write-off of Financing Receivable | 120 days | 120 days |
Gross loans | $ 1,306,855 |  | 1,292,921
Financing Receivables, 30 to 59 Days Past Due [Member] |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |
Financing Receivable, Recorded Investment, Past Due | 6,959 |  | 6,946
Financing Receivables, 30 to 59 Days Past Due [Member] | Residential Real Estate [Member] |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |
Financing Receivable, Recorded Investment, Past Due | 4,680 |  | 5,261
Financing Receivables, 30 to 59 Days Past Due [Member] | Home equity - junior lien [Member] |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |
Financing Receivable, Recorded Investment, Past Due | 410 |  | 318
Financing Receivables, 30 to 59 Days Past Due [Member] | Commercial And Industrial [Member] |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |
Financing Receivable, Recorded Investment, Past Due | 290 |  | 141
Financing Receivables, 30 to 59 Days Past Due [Member] | Commercial Real Estate [Member] |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |
Financing Receivable, Recorded Investment, Past Due | 1,230 |  | 762
Financing Receivables, 30 to 59 Days Past Due [Member] | Consumer Loan [Member] |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |
Financing Receivable, Recorded Investment, Past Due | 59 |  | 154
Financing Receivables, 30 to 59 Days Past Due [Member] | Demand Deposit Account Overdrafts [Member] |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |
Financing Receivable, Recorded Investment, Past Due | 290 |  | 310
Financing Receivables, 60 to 89 Days Past Due [Member] |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |
Financing Receivable, Recorded Investment, Past Due | 859 |  | 1,220
Financing Receivables, 60 to 89 Days Past Due [Member] | Residential Real Estate [Member] |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |
Financing Receivable, Recorded Investment, Past Due | 707 |  | 932
Financing Receivables, 60 to 89 Days Past Due [Member] | Home equity - junior lien [Member] |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |
Financing Receivable, Recorded Investment, Past Due | 135 |  | 65
Financing Receivables, 60 to 89 Days Past Due [Member] | Commercial And Industrial [Member] |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |
Financing Receivable, Recorded Investment, Past Due | 14 |  | 0
Financing Receivables, 60 to 89 Days Past Due [Member] | Commercial Real Estate [Member] |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |
Financing Receivable, Recorded Investment, Past Due | 0 |  | 211
Financing Receivables, 60 to 89 Days Past Due [Member] | Consumer Loan [Member] |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |
Financing Receivable, Recorded Investment, Past Due | 3 |  | 9
Financing Receivables, 60 to 89 Days Past Due [Member] | Demand Deposit Account Overdrafts [Member] |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |
Financing Receivable, Recorded Investment, Past Due | 0 |  | 3
Financing Receivables, Equal to Greater than 90 Days Past Due [Member] |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |
Financing Receivable, Recorded Investment, Past Due | 241 |  | 495
Financing Receivables, Equal to Greater than 90 Days Past Due [Member] | Residential Real Estate [Member] |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |
Financing Receivable, Recorded Investment, Past Due | 103 |  | 418
Financing Receivables, Equal to Greater than 90 Days Past Due [Member] | Home equity - junior lien [Member] |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |
Financing Receivable, Recorded Investment, Past Due | 50 |  | 24
Financing Receivables, Equal to Greater than 90 Days Past Due [Member] | Commercial And Industrial [Member] |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |
Financing Receivable, Recorded Investment, Past Due | 0 |  | 19
Financing Receivables, Equal to Greater than 90 Days Past Due [Member] | Commercial Real Estate [Member] |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |
Financing Receivable, Recorded Investment, Past Due | 0 |  | 0
Financing Receivables, Equal to Greater than 90 Days Past Due [Member] | Consumer Loan [Member] |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |
Financing Receivable, Recorded Investment, Past Due | 88 |  | 34
Financing Receivables, Equal to Greater than 90 Days Past Due [Member] | Demand Deposit Account Overdrafts [Member] |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |
Financing Receivable, Recorded Investment, Past Due | $ 0 |  | $ 0

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