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Allowance For Loan Losses (Schedule Of Aging Analysis Of Accruing And Non-Accruing Loans) (Details) (USD $) In Thousands, unless otherwise specified | Jun. 30, 2014 | Dec. 31, 2013
--- | --- | ---
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Current | $ 2,548,387 | $ 2,564,342
30 - 59 days past due | 8,065 | 10,453
60 - 89 days past due | 1,189 | 1,071
Over 90 days past due | 795 | 436
Impaired Financing Receivable, Recorded Investment, Past Due | 917 | 7,534
Non-accrual | 18,424 | 22,361
Total | 2,577,777 | 2,606,197
Residential Real Estate [Member] |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Current | 1,233,765 | 1,196,000
30 - 59 days past due | 5,120 | 4,965
60 - 89 days past due | 831 | 667
Over 90 days past due | 716 | 231
Non-accrual | 2,540 | 2,587
Total | 1,242,972 | 1,204,450
Home equity - junior lien [Member] |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Current | 144,333 | 144,932
30 - 59 days past due | 764 | 880
60 - 89 days past due | 120 | 0
Over 90 days past due | 44 | 42
Non-accrual | 191 | 236
Total | 145,452 | 146,090
Commercial And Industrial [Member] |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Current | 147,147 | 162,450
30 - 59 days past due | 43 | 0
60 - 89 days past due | 40 | 80
Over 90 days past due | 0 | 0
Impaired Financing Receivable, Recorded Investment, Past Due | 0 | 0
Non-accrual | 2,212 | 1,954
Total | 149,442 | 164,484
Commercial Real Estate [Member] |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Current | 977,518 | 1,011,926
30 - 59 days past due | 1,453 | 3,440
60 - 89 days past due | 165 | 273
Over 90 days past due | 18 | 109
Impaired Financing Receivable, Recorded Investment, Past Due | 917 | 7,534
Non-accrual | 13,481 | 17,584
Total | 993,552 | 1,040,866
Consumer [Member] |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Current | 42,404 | 45,523
30 - 59 days past due | 409 | 794
60 - 89 days past due | 28 | 36
Over 90 days past due | 17 | 49
Non-accrual | 0 | 0
Total | 42,858 | 46,402
Demand Deposit Account Overdrafts [Member] |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Current | 3,220 | 3,511
30 - 59 days past due | 276 | 374
60 - 89 days past due | 5 | 15
Over 90 days past due | 0 | 5
Non-accrual | 0 | 0
Total | 3,501 | 3,905
Noncommercial Loans [Member] |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total | 1,434,783 | 1,400,847
Originated Loans [Member] |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Current | 2,269,999 | 2,255,141
30 - 59 days past due | 5,980 | 6,217
60 - 89 days past due | 940 | 517
Over 90 days past due | 628 | 282
Non-accrual | 11,655 | 15,317
Total | 2,289,202 | 2,277,474
Originated Loans [Member] | Residential Real Estate [Member] |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Current | 1,140,373 | 1,096,911
30 - 59 days past due | 4,421 | 4,123
60 - 89 days past due | 789 | 495
Over 90 days past due | 584 | 231
Non-accrual | 2,240 | 1,905
Total | 1,148,407 | 1,103,665
Originated Loans [Member] | Home equity - junior lien [Member] |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Current | 141,927 | 141,967
30 - 59 days past due | 761 | 880
60 - 89 days past due | 120 | 0
Over 90 days past due | 44 | 42
Non-accrual | 191 | 236
Total | 143,043 | 143,125
Originated Loans [Member] | Commercial And Industrial [Member] |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Current | 133,028 | 144,197
30 - 59 days past due | 0 | 0
60 - 89 days past due | 25 | 0
Over 90 days past due | 0 | 0
Non-accrual | 137 | 79
Total | 133,190 | 144,276
Originated Loans [Member] | Commercial Real Estate [Member] |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Current | 817,777 | 835,908
30 - 59 days past due | 443 | 668
60 - 89 days past due | 0 | 0
Over 90 days past due | 0 | 0
Non-accrual | 9,087 | 13,097
Total | 827,307 | 849,673
Originated Loans [Member] | Consumer [Member] |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Current | 33,674 | 32,647
30 - 59 days past due | 79 | 172
60 - 89 days past due | 1 | 7
Over 90 days past due | 0 | 4
Non-accrual | 0 | 0
Total | 33,754 | 32,830
Originated Loans [Member] | Demand Deposit Account Overdrafts [Member] |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Current | 3,220 | 3,511
30 - 59 days past due | 276 | 374
60 - 89 days past due | 5 | 15
Over 90 days past due | 0 | 5
Non-accrual | 0 | 0
Total | 3,501 | 3,905
Acquired Loans [Member] |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Current | 278,388 | 309,201
30 - 59 days past due | 2,085 | 4,236
60 - 89 days past due | 249 | 554
Over 90 days past due | 167 | 154
Impaired Financing Receivable, Recorded Investment, Past Due | 917 | 7,534
Non-accrual | 6,769 | 7,044
Total | 288,575 | 328,723
Acquired Loans [Member] | Residential Real Estate [Member] |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Current | 93,392 | 99,089
30 - 59 days past due | 699 | 842
60 - 89 days past due | 42 | 172
Over 90 days past due | 132 | 0
Non-accrual | 300 | 682
Total | 94,565 | 100,785
Acquired Loans [Member] | Home equity - junior lien [Member] |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Current | 2,406 | 2,965
30 - 59 days past due | 3 | 0
60 - 89 days past due | 0 | 0
Over 90 days past due | 0 | 0
Non-accrual | 0 | 0
Total | 2,409 | 2,965
Acquired Loans [Member] | Commercial And Industrial [Member] |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Current | 14,119 | 18,253
30 - 59 days past due | 43 | 0
60 - 89 days past due | 15 | 80
Over 90 days past due | 0 | 0
Impaired Financing Receivable, Recorded Investment, Past Due | 0 | 0
Non-accrual | 2,075 | 1,875
Total | 16,252 | 20,208
Acquired Loans [Member] | Commercial Real Estate [Member] |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Current | 159,741 | 176,018
30 - 59 days past due | 1,010 | 2,772
60 - 89 days past due | 165 | 273
Over 90 days past due | 18 | 109
Impaired Financing Receivable, Recorded Investment, Past Due | 917 | 7,534
Non-accrual | 4,394 | 4,487
Total | 166,245 | 191,193
Acquired Loans [Member] | Consumer [Member] |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Current | 8,730 | 12,876
30 - 59 days past due | 330 | 622
60 - 89 days past due | 27 | 29
Over 90 days past due | 17 | 45
Non-accrual | 0 | 0
Total | 9,104 | 13,572
Acquired Loans [Member] | Demand Deposit Account Overdrafts [Member] |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Current | 0 | 0
30 - 59 days past due | 0 | 0
60 - 89 days past due | 0 | 0
Over 90 days past due | 0 | 0
Non-accrual | 0 | 0
Total | 0 | 0
Performing [Member] | Residential Real Estate [Member] |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total | 1,239,717 | 1,201,631
Performing [Member] | Home equity - junior lien [Member] |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total | 145,217 | 145,812
Performing [Member] | Consumer [Member] |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total | 42,841 | 46,353
Performing [Member] | Demand Deposit Account Overdrafts [Member] |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total | 3,501 | 3,900
Performing [Member] | Noncommercial Loans [Member] |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total | 1,431,276 | 1,397,696
Nonperforming [Member] | Residential Real Estate [Member] |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total | 3,255 | 2,819
Nonperforming [Member] | Home equity - junior lien [Member] |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total | 235 | 278
Nonperforming [Member] | Consumer [Member] |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total | 17 | 49
Nonperforming [Member] | Demand Deposit Account Overdrafts [Member] |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total | 0 | 5
Nonperforming [Member] | Noncommercial Loans [Member] |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total | $ 3,507 | $ 3,151

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