Loans (Average Recorded Investment And Interest Income Recognized On Loans Individually Evaluated For Impairment) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended	9 Months Ended
	Sep. 30, 2011	Sep. 30, 2011	Dec. 31, 2010
Financing Receivable, Impaired [Line Items]
Recorded investment	$ 192,464	$ 192,464	$ 250,933
Average recorded investment	194,878	223,412
Interest income recognized	191	789
Commercial, Financial And Agricultural [Member]
Financing Receivable, Impaired [Line Items]
Recorded investment	24,925	24,925
Average recorded investment	24,049	21,361
Interest income recognized	49	155
Construction Real Estate - Vision Commercial Land And Development [Member]
Financing Receivable, Impaired [Line Items]
Recorded investment	42,036	42,036
Average recorded investment	43,555	67,135
Construction Real Estate - Remaining Commercial [Member]
Financing Receivable, Impaired [Line Items]
Recorded investment	33,961	33,961
Average recorded investment	34,027	29,573
Interest income recognized	116	330
Residential Real Estate - Commercial [Member]
Financing Receivable, Impaired [Line Items]
Recorded investment	47,422	47,422
Average recorded investment	48,064	54,454
Interest income recognized		153
Commercial Real Estate [Member]
Financing Receivable, Impaired [Line Items]
Recorded investment	44,099	44,099
Average recorded investment	45,162	50,874
Interest income recognized	26	150
Consumer [Member]
Financing Receivable, Impaired [Line Items]
Recorded investment	21	21
Average recorded investment	21	15
Interest income recognized		$ 1