Loans (Loans Individually Evaluated For Impairment By Class Of Loans) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014	Dec. 31, 2014
Financing Receivable, Impaired [Line Items]
Unpaid principal balance	$ 100,577		$ 100,577		$ 106,156
Recorded investment	70,596	$ 96,005	70,596	$ 96,005	73,712
Allowance for loan losses allocated	6,597		6,597		3,660
Impaired Financing Receivable, Average Recorded Investment	67,192	99,863	69,468	103,585
Impaired Financing Receivable, Interest Income, Cash Basis Method	542	737	1,104	1,417
Commercial Financial And Agricultural [Member]
Financing Receivable, Impaired [Line Items]
Recorded investment	20,429	17,628	20,429	17,628
Impaired Financing Receivable, Average Recorded Investment	18,220	18,867	18,830	19,456
Impaired Financing Receivable, Interest Income, Cash Basis Method	140	75	271	136
Commercial Financial And Agricultural [Member] | Financing Receivable With No Related Allowance Recorded [Member]
Financing Receivable, Impaired [Line Items]
Unpaid principal balance	20,070		20,070		30,601
Recorded investment	6,314		6,314		17,883
Allowance for loan losses allocated	0		0		0
Commercial Financial And Agricultural [Member] | Financing Receivable With A Related Allowance Recorded [Member]
Financing Receivable, Impaired [Line Items]
Unpaid principal balance	18,314		18,314		1,251
Recorded investment	14,115		14,115		1,223
Allowance for loan losses allocated	2,570		2,570		981
Construction Real Estate, SEPH Commercial Land and Development [Member]
Financing Receivable, Impaired [Line Items]
Recorded investment	2,047	4,378	2,047	4,378
Impaired Financing Receivable, Average Recorded Investment	2,068	4,329	2,072	4,439
Impaired Financing Receivable, Interest Income, Cash Basis Method	0	66	8	122
Construction Real Estate, SEPH Commercial Land and Development [Member] | Financing Receivable With No Related Allowance Recorded [Member]
Financing Receivable, Impaired [Line Items]
Unpaid principal balance	10,837		10,837		11,026
Recorded investment	2,047		2,047		2,078
Allowance for loan losses allocated	0		0		0
Construction Real Estate, SEPH Commercial Land and Development [Member] | Financing Receivable With A Related Allowance Recorded [Member]
Financing Receivable, Impaired [Line Items]
Unpaid principal balance	0		0
Recorded investment	0		0
Allowance for loan losses allocated	0		0		0
Construction Real Estate - Remaining Commercial [Member]
Financing Receivable, Impaired [Line Items]
Recorded investment	6,032	9,954	6,032	9,954
Impaired Financing Receivable, Average Recorded Investment	5,611	10,150	5,644	10,227
Impaired Financing Receivable, Interest Income, Cash Basis Method	6	7	11	54
Construction Real Estate - Remaining Commercial [Member] | Financing Receivable With No Related Allowance Recorded [Member]
Financing Receivable, Impaired [Line Items]
Unpaid principal balance	1,172		1,172		1,427
Recorded investment	194		194		391
Allowance for loan losses allocated	0		0		0
Construction Real Estate - Remaining Commercial [Member] | Financing Receivable With A Related Allowance Recorded [Member]
Financing Receivable, Impaired [Line Items]
Unpaid principal balance	5,838		5,838		5,218
Recorded investment	5,838		5,838		5,218
Allowance for loan losses allocated	2,358		2,358		1,812
Residential Real Estate - Commercial [Member]
Financing Receivable, Impaired [Line Items]
Recorded investment	24,441	28,775	24,441	28,775
Impaired Financing Receivable, Average Recorded Investment	24,443	30,212	24,864	30,577
Impaired Financing Receivable, Interest Income, Cash Basis Method	273	307	528	570
Residential Real Estate - Commercial [Member] | Financing Receivable With No Related Allowance Recorded [Member]
Financing Receivable, Impaired [Line Items]
Unpaid principal balance	22,857		22,857		25,822
Recorded investment	21,153		21,153		23,352
Allowance for loan losses allocated	0		0		0
Residential Real Estate - Commercial [Member] | Financing Receivable With A Related Allowance Recorded [Member]
Financing Receivable, Impaired [Line Items]
Unpaid principal balance	3,471		3,471		1,578
Recorded investment	3,288		3,288		1,578
Allowance for loan losses allocated	981		981		605
Commercial Real Estate [Member]
Financing Receivable, Impaired [Line Items]
Recorded investment	17,647	35,138	17,647	35,138
Impaired Financing Receivable, Average Recorded Investment	16,850	35,638	18,058	38,163
Impaired Financing Receivable, Interest Income, Cash Basis Method	123	282	286	535
Commercial Real Estate [Member] | Financing Receivable With No Related Allowance Recorded [Member]
Financing Receivable, Impaired [Line Items]
Unpaid principal balance	13,188		13,188		27,923
Recorded investment	12,916		12,916		20,696
Allowance for loan losses allocated	0		0		0
Commercial Real Estate [Member] | Financing Receivable With A Related Allowance Recorded [Member]
Financing Receivable, Impaired [Line Items]
Unpaid principal balance	4,830		4,830		1,310
Recorded investment	4,731		4,731		1,293
Allowance for loan losses allocated	688		688		262
Consumer [Member]
Financing Receivable, Impaired [Line Items]
Recorded investment		132		132
Impaired Financing Receivable, Average Recorded Investment		667		723
Impaired Financing Receivable, Interest Income, Cash Basis Method	0	$ 0	0	$ 0
Consumer [Member] | Financing Receivable With No Related Allowance Recorded [Member]
Financing Receivable, Impaired [Line Items]
Allowance for loan losses allocated	0		0		0
Consumer [Member] | Financing Receivable With A Related Allowance Recorded [Member]
Financing Receivable, Impaired [Line Items]
Unpaid principal balance	0		0		0
Recorded investment	0		0		0
Allowance for loan losses allocated	$ 0		$ 0		$ 0