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Loans (Loans Individually And Collectively Evaluated For Impairment) (Details) - USD ($) $ in Thousands | 9 Months Ended | 12 Months Ended
--- | --- | ---
Sep. 30, 2015 | Dec. 31, 2014
Financing Receivable, Impaired [Line Items] |  |
Financing Receivable, Allowance for Credit Losses, Individually Evaluated for Impairment | $ 5,738 | $ 3,660
Nonaccrual and accruing restructured loans | 108,196 | 116,725
Nonaccrual and accruing restructured loans, loans individually evaluated for impairment | 69,224 | 73,712
Nonaccrual and accruing restructured loans, loans collectively evaluated for impairment | 38,972 | 43,013
Partial Charge-Offs On Impaired Loans | 29,984 | 32,480
Commercial Financial And Agricultural [Member] |  |
Financing Receivable, Impaired [Line Items] |  |
Nonaccrual and accruing restructured loans | 19,157 | 19,123
Nonaccrual and accruing restructured loans, loans individually evaluated for impairment | 19,154 | 19,106
Nonaccrual and accruing restructured loans, loans collectively evaluated for impairment | 3 | 17
Construction Real Estate, SEPH Commercial Land and Development [Member] |  |
Financing Receivable, Impaired [Line Items] |  |
Nonaccrual and accruing restructured loans | 2,045 | 2,078
Nonaccrual and accruing restructured loans, loans individually evaluated for impairment | 2,045 | 2,078
Construction Real Estate - Remaining Commercial [Member] |  |
Financing Receivable, Impaired [Line Items] |  |
Nonaccrual and accruing restructured loans | 5,993 | 5,609
Nonaccrual and accruing restructured loans, loans individually evaluated for impairment | 5,993 | 5,609
Nonaccrual and accruing restructured loans, loans collectively evaluated for impairment | 0 | 0
Construction Real Estate - Mortgage [Member] |  |
Financing Receivable, Impaired [Line Items] |  |
Nonaccrual and accruing restructured loans | 119 | 153
Nonaccrual and accruing restructured loans, loans individually evaluated for impairment | 0 | 0
Nonaccrual and accruing restructured loans, loans collectively evaluated for impairment | 119 | 153
Construction Real Estate - Installment [Member] |  |
Financing Receivable, Impaired [Line Items] |  |
Nonaccrual and accruing restructured loans | 239 | 240
Nonaccrual and accruing restructured loans, loans individually evaluated for impairment | 0 | 0
Nonaccrual and accruing restructured loans, loans collectively evaluated for impairment | 239 | 240
Residential Real Estate - Commercial [Member] |  |
Financing Receivable, Impaired [Line Items] |  |
Nonaccrual and accruing restructured loans | 24,370 | 24,930
Nonaccrual and accruing restructured loans, loans individually evaluated for impairment | 24,370 | 24,930
Nonaccrual and accruing restructured loans, loans collectively evaluated for impairment | 0 | 0
Residential Real Estate - Mortgage [Member] |  |
Financing Receivable, Impaired [Line Items] |  |
Nonaccrual and accruing restructured loans | 29,444 | 32,218
Nonaccrual and accruing restructured loans, loans individually evaluated for impairment | 0 | 0
Nonaccrual and accruing restructured loans, loans collectively evaluated for impairment | 29,444 | 32,218
Residential Real Estate - HELOC [Member] |  |
Financing Receivable, Impaired [Line Items] |  |
Nonaccrual and accruing restructured loans | 2,491 | 2,509
Nonaccrual and accruing restructured loans, loans individually evaluated for impairment | 0 | 0
Nonaccrual and accruing restructured loans, loans collectively evaluated for impairment | 2,491 | 2,509
Residential Real Estate - Installment [Member] |  |
Financing Receivable, Impaired [Line Items] |  |
Nonaccrual and accruing restructured loans | 2,525 | 2,522
Nonaccrual and accruing restructured loans, loans individually evaluated for impairment | 0 | 0
Nonaccrual and accruing restructured loans, loans collectively evaluated for impairment | 2,525 | 2,522
Commercial Real Estate [Member] |  |
Financing Receivable, Impaired [Line Items] |  |
Financing Receivable, Allowance for Credit Losses, Individually Evaluated for Impairment | 488 | 262
Nonaccrual and accruing restructured loans | 17,662 | 21,989
Nonaccrual and accruing restructured loans, loans individually evaluated for impairment | 17,662 | 21,989
Nonaccrual and accruing restructured loans, loans collectively evaluated for impairment | 0 | 0
Consumer [Member] |  |
Financing Receivable, Impaired [Line Items] |  |
Financing Receivable, Allowance for Credit Losses, Individually Evaluated for Impairment | 0 | 0
Nonaccrual and accruing restructured loans | 4,151 | 5,354
Nonaccrual and accruing restructured loans, loans collectively evaluated for impairment | 4,151 | 5,354
Financing Receivable With No Related Allowance Recorded [Member] |  |
Financing Receivable, Impaired [Line Items] |  |
Partial Charge-Offs On Impaired Loans | $ 25,700 | $ 32,400

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