Loans (Loans Individually And Collectively Evaluated For Impairment) (Details) (USD $)	6 Months Ended	12 Months Ended
	Jun. 30, 2014	Dec. 31, 2013
Financing Receivable, Impaired [Line Items]
Financing Receivable, Allowance for Credit Losses, Individually Evaluated for Impairment	$ 6,343,000	$ 10,451,000
Nonaccrual and accruing restructured loans	136,490,000	154,025,000
Nonaccrual and accruing restructured loans, loans individually evaluated for impairment	96,005,000	112,315,000
Nonaccrual and accruing restructured loans, loans collectively evaluated for impairment	40,485,000	41,710,000
Partial Charge-Offs On Impaired Loans	58,400,000	63,300,000
Commercial Financial And Agricultural [Member]
Financing Receivable, Impaired [Line Items]
Nonaccrual and accruing restructured loans	17,766,000	20,740,000
Nonaccrual and accruing restructured loans, loans individually evaluated for impairment	17,628,000	20,727,000
Nonaccrual and accruing restructured loans, loans collectively evaluated for impairment	138,000	13,000
Construction Real Estate - SEPH Commercial Land And Development [Member]
Financing Receivable, Impaired [Line Items]
Nonaccrual and accruing restructured loans	4,378,000	4,777,000
Nonaccrual and accruing restructured loans, loans individually evaluated for impairment	4,378,000	4,777,000
Nonaccrual and accruing restructured loans, loans collectively evaluated for impairment
Construction Real Estate - Remaining Commercial [Member]
Financing Receivable, Impaired [Line Items]
Nonaccrual and accruing restructured loans	9,954,000	10,782,000
Nonaccrual and accruing restructured loans, loans individually evaluated for impairment	9,954,000	10,782,000
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	194,000	184,000
Nonaccrual and accruing restructured loans, loans individually evaluated for impairment	0	0
Nonaccrual and accruing restructured loans, loans collectively evaluated for impairment	194,000	184,000
Construction Real Estate - Installment [Member]
Financing Receivable, Impaired [Line Items]
Nonaccrual and accruing restructured loans	196,000	231,000
Nonaccrual and accruing restructured loans, loans individually evaluated for impairment	0	0
Nonaccrual and accruing restructured loans, loans collectively evaluated for impairment	196,000	231,000
Residential Real Estate - Commercial [Member]
Financing Receivable, Impaired [Line Items]
Nonaccrual and accruing restructured loans	28,775,000	33,408,000
Nonaccrual and accruing restructured loans, loans individually evaluated for impairment	28,775,000	33,408,000
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	31,034,000	32,272,000
Nonaccrual and accruing restructured loans, loans individually evaluated for impairment	0	0
Nonaccrual and accruing restructured loans, loans collectively evaluated for impairment	31,034,000	32,272,000
Residential Real Estate - HELOC [Member]
Financing Receivable, Impaired [Line Items]
Nonaccrual and accruing restructured loans	2,437,000	2,880,000
Nonaccrual and accruing restructured loans, loans individually evaluated for impairment	0	0
Nonaccrual and accruing restructured loans, loans collectively evaluated for impairment	2,437,000	2,880,000
Residential Real Estate - Installment [Member]
Financing Receivable, Impaired [Line Items]
Nonaccrual and accruing restructured loans	2,531,000	1,850,000
Nonaccrual and accruing restructured loans, loans individually evaluated for impairment	0	0
Nonaccrual and accruing restructured loans, loans collectively evaluated for impairment	2,531,000	1,850,000
Commercial Real Estate [Member]
Financing Receivable, Impaired [Line Items]
Financing Receivable, Allowance for Credit Losses, Individually Evaluated for Impairment	781,000	5,496,000
Nonaccrual and accruing restructured loans	35,138,000	41,822,000
Nonaccrual and accruing restructured loans, loans individually evaluated for impairment	35,138,000	41,822,000
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	81,000	0
Nonaccrual and accruing restructured loans	4,087,000	5,079,000
Nonaccrual and accruing restructured loans, loans individually evaluated for impairment	132,000	799,000
Nonaccrual and accruing restructured loans, loans collectively evaluated for impairment	3,955,000	4,280,000
Financing Receivable With No Related Allowance Recorded [Member]
Financing Receivable, Impaired [Line Items]
Partial Charge-Offs On Impaired Loans	$ 53,900,000	$ 58,100,000