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Allowance For Loan Losses (Schedule Of Aging Analysis Of Accruing And Non-Accruing Loans) (Details) - USD ($) $ in Thousands | Sep. 30, 2015 | Dec. 31, 2014
--- | --- | ---
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Current | $ 2,664,431 | $ 2,626,094
Financing Receivable, Acquired with Deteriorated Credit Quality, Recorded Investment, Past Due | 1,493 | 1,270
Non-accrual | 21,407 | 15,306
Gross loans | 2,696,438 | 2,652,066
Residential Real Estate [Member] |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Current | 1,349,551 | 1,286,306
Non-accrual | 3,012 | 2,394
Gross loans | 1,358,083 | 1,294,576
Home equity - junior lien [Member] |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Current | 144,032 | 144,788
Non-accrual | 159 | 68
Gross loans | 144,748 | 145,604
Commercial And Industrial [Member] |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Current | 117,710 | 138,980
Financing Receivable, Acquired with Deteriorated Credit Quality, Recorded Investment, Past Due | 0 | 0
Non-accrual | 6,430 | 1,115
Gross loans | 124,495 | 140,548
Commercial Real Estate [Member] |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Current | 1,013,676 | 1,014,251
Financing Receivable, Acquired with Deteriorated Credit Quality, Recorded Investment, Past Due | 1,493 | 1,270
Non-accrual | 11,806 | 11,729
Gross loans | 1,029,103 | 1,028,831
Consumer Loan [Member] |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Current | 36,534 | 39,286
Non-accrual | 0 | 0
Gross loans | 36,751 | 39,705
Demand Deposit Account Overdrafts [Member] |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Current | 2,928 | 2,483
Non-accrual | 0 | 0
Gross loans | 3,258 | 2,802
Originated Loans [Member] |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Current | 2,451,479 | 2,376,849
Non-accrual | 16,064 | 9,735
Gross loans | 2,474,507 | 2,393,798
Originated Loans [Member] | Residential Real Estate [Member] |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Current | 1,274,236 | 1,200,177
Non-accrual | 2,186 | 2,259
Gross loans | 1,281,234 | 1,207,598
Originated Loans [Member] | Home equity - junior lien [Member] |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Current | 142,805 | 142,624
Non-accrual | 159 | 68
Gross loans | 143,511 | 143,438
Originated Loans [Member] | Commercial And Industrial [Member] |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Current | 110,475 | 128,857
Non-accrual | 6,065 | 78
Gross loans | 116,545 | 129,245
Originated Loans [Member] | Commercial Real Estate [Member] |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Current | 888,458 | 869,530
Non-accrual | 7,654 | 7,330
Gross loans | 897,294 | 877,339
Originated Loans [Member] | Consumer Loan [Member] |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Current | 32,577 | 33,178
Non-accrual | 0 | 0
Gross loans | 32,665 | 33,376
Originated Loans [Member] | Demand Deposit Account Overdrafts [Member] |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Current | 2,928 | 2,483
Non-accrual | 0 | 0
Gross loans | 3,258 | 2,802
Acquired Loans [Member] |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Current | 212,952 | 249,245
Financing Receivable, Acquired with Deteriorated Credit Quality, Recorded Investment, Past Due | 1,493 | 1,270
Non-accrual | 5,343 | 5,571
Gross loans | 221,931 | 258,268
Acquired Loans [Member] | Residential Real Estate [Member] |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Current | 75,315 | 86,129
Non-accrual | 826 | 135
Gross loans | 76,849 | 86,978
Acquired Loans [Member] | Home equity - junior lien [Member] |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Current | 1,227 | 2,164
Non-accrual | 0 | 0
Gross loans | 1,237 | 2,166
Acquired Loans [Member] | Commercial And Industrial [Member] |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Current | 7,235 | 10,123
Financing Receivable, Acquired with Deteriorated Credit Quality, Recorded Investment, Past Due | 0 | 0
Non-accrual | 365 | 1,037
Gross loans | 7,950 | 11,303
Acquired Loans [Member] | Commercial Real Estate [Member] |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Current | 125,218 | 144,721
Financing Receivable, Acquired with Deteriorated Credit Quality, Recorded Investment, Past Due | 1,493 | 1,270
Non-accrual | 4,152 | 4,399
Gross loans | 131,809 | 151,492
Acquired Loans [Member] | Consumer Loan [Member] |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Current | 3,957 | 6,108
Non-accrual | 0 | 0
Gross loans | 4,086 | 6,329
Acquired Loans [Member] | Demand Deposit Account Overdrafts [Member] |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Current | 0 | 0
Non-accrual | 0 | 0
Gross loans | 0 | 0
Financing Receivables, 30 to 59 Days Past Due [Member] |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Financing Receivable, Recorded Investment, Past Due | 7,524 | 7,734
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 | 4,764 | 4,949
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 | 474 | 563
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 | 336 | 243
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 | 1,418 | 1,371
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 | 202 | 291
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 | 330 | 317
Financing Receivables, 30 to 59 Days Past Due [Member] | Originated Loans [Member] |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Financing Receivable, Recorded Investment, Past Due | 5,814 | 5,811
Financing Receivables, 30 to 59 Days Past Due [Member] | Originated Loans [Member] | Residential Real Estate [Member] |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Financing Receivable, Recorded Investment, Past Due | 4,218 | 4,235
Financing Receivables, 30 to 59 Days Past Due [Member] | Originated Loans [Member] | Home equity - junior lien [Member] |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Financing Receivable, Recorded Investment, Past Due | 464 | 561
Financing Receivables, 30 to 59 Days Past Due [Member] | Originated Loans [Member] | Commercial And Industrial [Member] |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Financing Receivable, Recorded Investment, Past Due | 0 | 100
Financing Receivables, 30 to 59 Days Past Due [Member] | Originated Loans [Member] | Commercial Real Estate [Member] |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Financing Receivable, Recorded Investment, Past Due | 717 | 479
Financing Receivables, 30 to 59 Days Past Due [Member] | Originated Loans [Member] | Consumer Loan [Member] |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Financing Receivable, Recorded Investment, Past Due | 85 | 119
Financing Receivables, 30 to 59 Days Past Due [Member] | Originated Loans [Member] | Demand Deposit Account Overdrafts [Member] |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Financing Receivable, Recorded Investment, Past Due | 330 | 317
Financing Receivables, 30 to 59 Days Past Due [Member] | Acquired Loans [Member] |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Financing Receivable, Recorded Investment, Past Due | 1,710 | 1,923
Financing Receivables, 30 to 59 Days Past Due [Member] | Acquired Loans [Member] | Residential Real Estate [Member] |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Financing Receivable, Recorded Investment, Past Due | 546 | 714
Financing Receivables, 30 to 59 Days Past Due [Member] | Acquired Loans [Member] | Home equity - junior lien [Member] |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Financing Receivable, Recorded Investment, Past Due | 10 | 2
Financing Receivables, 30 to 59 Days Past Due [Member] | Acquired Loans [Member] | Commercial And Industrial [Member] |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Financing Receivable, Recorded Investment, Past Due | 336 | 143
Financing Receivables, 30 to 59 Days Past Due [Member] | Acquired Loans [Member] | Commercial Real Estate [Member] |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Financing Receivable, Recorded Investment, Past Due | 701 | 892
Financing Receivables, 30 to 59 Days Past Due [Member] | Acquired Loans [Member] | Consumer Loan [Member] |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Financing Receivable, Recorded Investment, Past Due | 117 | 172
Financing Receivables, 30 to 59 Days Past Due [Member] | Acquired Loans [Member] | Demand Deposit Account Overdrafts [Member] |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Financing Receivable, Recorded Investment, Past Due | 0 | 0
Financing Receivables, 60 to 89 Days Past Due [Member] |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Financing Receivable, Recorded Investment, Past Due | 1,134 | 1,239
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 | 548 | 758
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 | 67 | 155
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 | 19 | 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 | 485 | 210
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 | 15 | 114
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 | 2
Financing Receivables, 60 to 89 Days Past Due [Member] | Originated Loans [Member] |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Financing Receivable, Recorded Investment, Past Due | 701 | 993
Financing Receivables, 60 to 89 Days Past Due [Member] | Originated Loans [Member] | Residential Real Estate [Member] |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Financing Receivable, Recorded Investment, Past Due | 386 | 758
Financing Receivables, 60 to 89 Days Past Due [Member] | Originated Loans [Member] | Home equity - junior lien [Member] |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Financing Receivable, Recorded Investment, Past Due | 67 | 155
Financing Receivables, 60 to 89 Days Past Due [Member] | Originated Loans [Member] | Commercial And Industrial [Member] |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Financing Receivable, Recorded Investment, Past Due | 5 | 0
Financing Receivables, 60 to 89 Days Past Due [Member] | Originated Loans [Member] | Commercial Real Estate [Member] |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Financing Receivable, Recorded Investment, Past Due | 240 | 0
Financing Receivables, 60 to 89 Days Past Due [Member] | Originated Loans [Member] | Consumer Loan [Member] |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Financing Receivable, Recorded Investment, Past Due | 3 | 78
Financing Receivables, 60 to 89 Days Past Due [Member] | Originated Loans [Member] | Demand Deposit Account Overdrafts [Member] |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Financing Receivable, Recorded Investment, Past Due | 0 | 2
Financing Receivables, 60 to 89 Days Past Due [Member] | Acquired Loans [Member] |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Financing Receivable, Recorded Investment, Past Due | 433 | 246
Financing Receivables, 60 to 89 Days Past Due [Member] | Acquired Loans [Member] | Residential Real Estate [Member] |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Financing Receivable, Recorded Investment, Past Due | 162 | 0
Financing Receivables, 60 to 89 Days Past Due [Member] | Acquired Loans [Member] | Home equity - junior lien [Member] |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Financing Receivable, Recorded Investment, Past Due | 0 | 0
Financing Receivables, 60 to 89 Days Past Due [Member] | Acquired Loans [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] | Acquired Loans [Member] | Commercial Real Estate [Member] |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Financing Receivable, Recorded Investment, Past Due | 245 | 210
Financing Receivables, 60 to 89 Days Past Due [Member] | Acquired Loans [Member] | Consumer Loan [Member] |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Financing Receivable, Recorded Investment, Past Due | 12 | 36
Financing Receivables, 60 to 89 Days Past Due [Member] | Acquired Loans [Member] | Demand Deposit Account Overdrafts [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] |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Financing Receivable, Recorded Investment, Past Due | 449 | 423
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 | 208 | 169
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 | 16 | 30
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 | 210
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 | 225 | 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 | 0 | 14
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
Financing Receivables, Equal to Greater than 90 Days Past Due [Member] | Originated Loans [Member] |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Financing Receivable, Recorded Investment, Past Due | 449 | 410
Financing Receivables, Equal to Greater than 90 Days Past Due [Member] | Originated Loans [Member] | Residential Real Estate [Member] |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Financing Receivable, Recorded Investment, Past Due | 208 | 169
Financing Receivables, Equal to Greater than 90 Days Past Due [Member] | Originated Loans [Member] | Home equity - junior lien [Member] |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Financing Receivable, Recorded Investment, Past Due | 16 | 30
Financing Receivables, Equal to Greater than 90 Days Past Due [Member] | Originated Loans [Member] | Commercial And Industrial [Member] |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Financing Receivable, Recorded Investment, Past Due | 0 | 210
Financing Receivables, Equal to Greater than 90 Days Past Due [Member] | Originated Loans [Member] | Commercial Real Estate [Member] |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Financing Receivable, Recorded Investment, Past Due | 225 | 0
Financing Receivables, Equal to Greater than 90 Days Past Due [Member] | Originated Loans [Member] | Consumer Loan [Member] |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Financing Receivable, Recorded Investment, Past Due | 0 | 1
Financing Receivables, Equal to Greater than 90 Days Past Due [Member] | Originated Loans [Member] | Demand Deposit Account Overdrafts [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] | Acquired Loans [Member] |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Financing Receivable, Recorded Investment, Past Due | 0 | 13
Financing Receivables, Equal to Greater than 90 Days Past Due [Member] | Acquired Loans [Member] | Residential 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] | Acquired Loans [Member] | Home equity - junior lien [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] | Acquired Loans [Member] | Commercial And Industrial [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] | Acquired Loans [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] | Acquired Loans [Member] | Consumer Loan [Member] |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Financing Receivable, Recorded Investment, Past Due | 0 | 13
Financing Receivables, Equal to Greater than 90 Days Past Due [Member] | Acquired Loans [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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