Loans (Average Recorded Investment And Interest Income Recognized On Loans Individually Evaluated For Impairment) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013	Dec. 31, 2013
Financing Receivable, Impaired [Line Items]
Recorded investment	$ 96,005	$ 126,102	$ 96,005	$ 126,102	$ 112,315
Average recorded investment	99,863	127,057	103,585	130,405
Interest income recognized	737	645	1,417	1,379
Commercial Financial And Agricultural [Member]
Financing Receivable, Impaired [Line Items]
Recorded investment	17,628	20,154	17,628	20,154
Average recorded investment	18,867	21,148	19,456	21,252
Interest income recognized	75	82	136	210
Construction Real Estate - SEPH Commercial Land And Development [Member]
Financing Receivable, Impaired [Line Items]
Recorded investment	4,378	9,074	4,378	9,074
Average recorded investment	4,329	9,532	4,439	10,854
Interest income recognized	66	0	122	0
Construction Real Estate - Remaining Commercial [Member]
Financing Receivable, Impaired [Line Items]
Recorded investment	9,954	18,535	9,954	18,535
Average recorded investment	10,150	19,390	10,227	20,103
Interest income recognized	7	192	54	412
Residential Real Estate - Commercial [Member]
Financing Receivable, Impaired [Line Items]
Recorded investment	28,775	35,412	28,775	35,412
Average recorded investment	30,212	36,141	30,577	35,897
Interest income recognized	307	112	570	242
Commercial Real Estate [Member]
Financing Receivable, Impaired [Line Items]
Recorded investment	35,138	42,128	35,138	42,128
Average recorded investment	35,638	40,047	38,163	41,840
Interest income recognized	282	259	535	515
Consumer [Member]
Financing Receivable, Impaired [Line Items]
Recorded investment	132	799	132	799
Average recorded investment	667	799	723	459
Interest income recognized	$ 0	$ 0	$ 0	$ 0