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Loans (Loans Individually Evaluated For Impairment By Class Of Loans) (Details) - USD ($) $ in Thousands | 3 Months Ended |
--- | --- | ---
Mar. 31, 2016 | Mar. 31, 2015 | Dec. 31, 2015
Financing Receivable, Impaired [Line Items] |  |  |
Unpaid principal balance | $ 106,539 |  | $ 109,305
Recorded investment | 78,171 | $ 70,492 | 80,664
Allowance for loan losses allocated | 4,930 |  | 4,191
Impaired Financing Receivable, Average Recorded Investment | 78,669 | 72,000 |
Impaired Financing Receivable, Interest Income, Cash Basis Method | 2,396 | 562 |
Commercial Financial And Agricultural [Member] |  |  |
Financing Receivable, Impaired [Line Items] |  |  |
Recorded investment | 28,596 | 20,571 |
Impaired Financing Receivable, Average Recorded Investment | 29,858 | 19,876 |
Impaired Financing Receivable, Interest Income, Cash Basis Method | 238 | 131 |
Commercial Financial And Agricultural [Member] | Financing Receivable With No Related Allowance Recorded [Member] |  |  |
Financing Receivable, Impaired [Line Items] |  |  |
Unpaid principal balance | 37,013 |  | 32,583
Recorded investment | 23,192 |  | 18,763
Allowance for loan losses allocated | 0 |  | 0
Commercial Financial And Agricultural [Member] | Financing Receivable With A Related Allowance Recorded [Member] |  |  |
Financing Receivable, Impaired [Line Items] |  |  |
Unpaid principal balance | 9,496 |  | 16,155
Recorded investment | 5,404 |  | 11,832
Allowance for loan losses allocated | 2,471 |  | 1,904
Construction Real Estate, SEPH Commercial Land and Development [Member] |  |  |
Financing Receivable, Impaired [Line Items] |  |  |
Recorded investment | 2,043 | 2,077 |
Impaired Financing Receivable, Average Recorded Investment | 2,043 | 2,077 |
Impaired Financing Receivable, Interest Income, Cash Basis Method | 0 | 8 |
Construction Real Estate, SEPH Commercial Land and Development [Member] | Financing Receivable With No Related Allowance Recorded [Member] |  |  |
Financing Receivable, Impaired [Line Items] |  |  |
Unpaid principal balance | 10,832 |  | 10,834
Recorded investment | 2,043 |  | 2,044
Allowance for loan losses allocated | 0 |  | 0
Construction Real Estate - Remaining Commercial [Member] |  |  |
Financing Receivable, Impaired [Line Items] |  |  |
Recorded investment | 4,845 | 5,725 |
Impaired Financing Receivable, Average Recorded Investment | 4,771 | 5,697 |
Impaired Financing Receivable, Interest Income, Cash Basis Method | 13 | 5 |
Construction Real Estate - Remaining Commercial [Member] | Financing Receivable With No Related Allowance Recorded [Member] |  |  |
Financing Receivable, Impaired [Line Items] |  |  |
Unpaid principal balance | 2,474 |  | 2,506
Recorded investment | 1,497 |  | 1,531
Allowance for loan losses allocated | 0 |  | 0
Construction Real Estate - Remaining Commercial [Member] | Financing Receivable With A Related Allowance Recorded [Member] |  |  |
Financing Receivable, Impaired [Line Items] |  |  |
Unpaid principal balance | 3,348 |  | 3,145
Recorded investment | 3,348 |  | 3,145
Allowance for loan losses allocated | 1,456 |  | 1,356
Residential Real Estate - Commercial [Member] |  |  |
Financing Receivable, Impaired [Line Items] |  |  |
Recorded investment | 24,619 | 25,219 |
Impaired Financing Receivable, Average Recorded Investment | 24,897 | 25,373 |
Impaired Financing Receivable, Interest Income, Cash Basis Method | 1,965 | 255 |
Residential Real Estate - Commercial [Member] | Financing Receivable With No Related Allowance Recorded [Member] |  |  |
Financing Receivable, Impaired [Line Items] |  |  |
Unpaid principal balance | 22,932 |  | 23,798
Recorded investment | 22,806 |  | 23,480
Allowance for loan losses allocated | 0 |  | 0
Residential Real Estate - Commercial [Member] | Financing Receivable With A Related Allowance Recorded [Member] |  |  |
Financing Receivable, Impaired [Line Items] |  |  |
Unpaid principal balance | 2,155 |  | 1,951
Recorded investment | 1,813 |  | 1,844
Allowance for loan losses allocated | 410 |  | 550
Commercial Real Estate [Member] |  |  |
Financing Receivable, Impaired [Line Items] |  |  |
Recorded investment | 18,068 | 16,900 |
Impaired Financing Receivable, Average Recorded Investment | 17,100 | 18,977 |
Impaired Financing Receivable, Interest Income, Cash Basis Method | 180 | $ 163 |
Commercial Real Estate [Member] | Financing Receivable With No Related Allowance Recorded [Member] |  |  |
Financing Receivable, Impaired [Line Items] |  |  |
Unpaid principal balance | 15,369 |  | 15,138
Recorded investment | 15,148 |  | 14,916
Allowance for loan losses allocated | 0 |  | 0
Commercial Real Estate [Member] | Financing Receivable With A Related Allowance Recorded [Member] |  |  |
Financing Receivable, Impaired [Line Items] |  |  |
Unpaid principal balance | 2,920 |  | 3,195
Recorded investment | 2,920 |  | 3,109
Allowance for loan losses allocated | $ 593 |  | $ 381

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