Allowance For Loan Losses (Activity In The Allowance For Loan Losses) (Details) (USD $)	3 Months Ended		6 Months Ended		12 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance	$ 59,758,000	$ 148,530,000	$ 68,444,000	$ 143,575,000	$ 120,174,000
Charge-offs	10,064,000	42,305,000	29,031,000	53,811,000
Recoveries	3,764,000	1,433,000	5,707,000	3,794,000
Net Charge-offs	6,300,000	40,872,000	23,324,000	50,017,000
Provision	5,238,000	12,516,000	13,576,000	26,616,000
Ending balance	58,696,000	120,174,000	58,696,000	120,174,000	58,696,000
Allowance for Loan Losses Increase (Decrease) During Period					61,500,000
Vision Bank [Member]
Allowance for Loan and Lease Losses [Roll Forward]
Ending balance		47,200,000		47,200,000
Commercial, Financial And Agricultural [Member]
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance	18,328,000	11,791,000	16,950,000	11,555,000
Charge-offs	5,423,000	5,330,000	9,961,000	7,171,000
Recoveries	124,000	327,000	592,000	896,000
Net Charge-offs	5,299,000	5,003,000	9,369,000	6,275,000
Provision	2,191,000	9,921,000	7,639,000	11,429,000
Ending balance	15,220,000	16,709,000	15,220,000	16,709,000	15,220,000
Commercial Real Estate [Member]
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance	12,006,000	25,220,000	15,539,000	24,369,000
Charge-offs	935,000	6,565,000	5,869,000	8,350,000
Recoveries	247,000	22,000	339,000	824,000
Net Charge-offs	688,000	6,543,000	5,530,000	7,526,000
Provision	638,000	4,630,000	1,947,000	6,464,000
Ending balance	11,956,000	23,307,000	11,956,000	23,307,000	11,956,000
Construction Real Estate [Member]
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance	9,747,000	71,835,000	14,433,000	70,462,000
Charge-offs	1,009,000	23,679,000	5,329,000	27,099,000
Recoveries	1,699,000	117,000	1,766,000	213,000
Net Charge-offs	(690,000)	23,562,000	3,563,000	26,886,000
Provision	1,256,000	(8,160,000)	823,000	(3,463,000)
Ending balance	11,693,000	40,113,000	11,693,000	40,113,000	11,693,000
Residential Real Estate [Member]
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance	13,868,000	32,415,000	15,692,000	30,259,000
Charge-offs	1,701,000	4,789,000	5,623,000	7,276,000
Recoveries	1,187,000	390,000	1,796,000	891,000
Net Charge-offs	514,000	4,399,000	3,827,000	6,385,000
Provision	452,000	4,281,000	1,941,000	8,423,000
Ending balance	13,806,000	32,297,000	13,806,000	32,297,000	13,806,000
Consumer [Member]
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance	5,809,000	7,265,000	5,830,000	6,925,000
Charge-offs	996,000	1,942,000	2,249,000	3,915,000
Recoveries	507,000	577,000	1,214,000	967,000
Net Charge-offs	489,000	1,365,000	1,035,000	2,948,000
Provision	701,000	1,844,000	1,226,000	3,767,000
Ending balance	6,021,000	7,744,000	6,021,000	7,744,000	6,021,000
Leases [Member]
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance	0	4,000	0	5,000
Charge-offs	0	0	0	0
Recoveries	0	0	0	3,000
Net Charge-offs	0	0	0	(3,000)
Provision	0	0	0	(4,000)
Ending balance	$ 0	$ 4,000	$ 0	$ 4,000	$ 0