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Loans (Average Recorded Investment And Interest Income Recognized On Loans Individually Evaluated For Impairment) (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended |
--- | --- | --- | ---
Sep. 30, 2016 | Sep. 30, 2015 | Sep. 30, 2016 | Sep. 30, 2015 | Dec. 31, 2015
Financing Receivable, Impaired [Line Items] |  |  |  |  |
Recorded investment | $ 77,998 | $ 69,224 | $ 77,998 | $ 69,224 | $ 80,664
Average recorded investment | 84,736 | 69,933 | 81,191 | 69,541 |
Interest income recognized | 767 | 409 | 4,011 | 1,513 |
Commercial Financial And Agricultural [Member] |  |  |  |  |
Financing Receivable, Impaired [Line Items] |  |  |  |  |
Recorded investment | 23,856 | 19,154 | 23,856 | 19,154 |
Average recorded investment | 26,679 | 19,793 | 28,217 | 19,056 |
Interest income recognized | 194 | 35 | 740 | 306 |
Construction Real Estate, SEPH Commercial Land and Development [Member] |  |  |  |  |
Financing Receivable, Impaired [Line Items] |  |  |  |  |
Recorded investment | 1,700 | 2,045 | 1,700 | 2,045 |
Average recorded investment | 1,700 | 2,068 | 1,906 | 2,073 |
Interest income recognized | 0 | 0 | 0 | 8 |
Construction Real Estate - Remaining Commercial [Member] |  |  |  |  |
Financing Receivable, Impaired [Line Items] |  |  |  |  |
Recorded investment | 2,677 | 5,993 | 2,677 | 5,993 |
Average recorded investment | 3,943 | 6,059 | 4,338 | 5,771 |
Interest income recognized | 16 | 2 | 44 | 13 |
Residential Real Estate - Commercial [Member] |  |  |  |  |
Financing Receivable, Impaired [Line Items] |  |  |  |  |
Recorded investment | 23,700 | 24,370 | 23,700 | 24,370 |
Average recorded investment | 24,422 | 24,560 | 24,618 | 24,784 |
Interest income recognized | 314 | 240 | 2,619 | 768 |
Commercial Real Estate [Member] |  |  |  |  |
Financing Receivable, Impaired [Line Items] |  |  |  |  |
Recorded investment | 26,065 | 17,662 | 26,065 | 17,662 |
Average recorded investment | 27,982 | 17,453 | 22,108 | 17,857 |
Interest income recognized | 243 | $ 132 | 608 | $ 418 |
Consumer [Member] |  |  |  |  |
Financing Receivable, Impaired [Line Items] |  |  |  |  |
Average recorded investment | $ 10 |  | $ 4 |  |

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