Loans (Average Recorded Investment And Interest Income Recognized On Loans Individually Evaluated For Impairment) (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015	Dec. 31, 2015
Financing Receivable, Impaired [Line Items]
Recorded investment	$ 90,844	$ 70,596	$ 90,844	$ 70,596	$ 80,664
Average recorded investment	81,825	67,192	80,544	69,468
Interest income recognized	848	542	3,244	1,104
Commercial Financial And Agricultural [Member]
Financing Receivable, Impaired [Line Items]
Recorded investment	29,779	20,429	29,779	20,429
Average recorded investment	28,600	18,220	29,319	18,830
Interest income recognized	308	140	546	271
Construction Real Estate, SEPH Commercial Land and Development [Member]
Financing Receivable, Impaired [Line Items]
Recorded investment	1,700	2,047	1,700	2,047
Average recorded investment	1,957	2,068	1,994	2,072
Interest income recognized	0	0	0	8
Construction Real Estate - Remaining Commercial [Member]
Financing Receivable, Impaired [Line Items]
Recorded investment	4,386	6,032	4,386	6,032
Average recorded investment	4,438	5,611	4,570	5,644
Interest income recognized	15	6	28	11
Residential Real Estate - Commercial [Member]
Financing Receivable, Impaired [Line Items]
Recorded investment	25,070	24,441	25,070	24,441
Average recorded investment	24,648	24,443	24,795	24,864
Interest income recognized	340	273	2,305	528
Commercial Real Estate [Member]
Financing Receivable, Impaired [Line Items]
Recorded investment	29,889	17,647	29,889	17,647
Average recorded investment	22,177	16,850	19,863	18,058
Interest income recognized	185	$ 123	365	$ 286
Consumer [Member]
Financing Receivable, Impaired [Line Items]
Recorded investment	20		20
Average recorded investment	$ 5		$ 3

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Average amount of investment of impaired financing receivables with related allowance for credit losses and without a related allowance for credit losses.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 15
-Subparagraph (c)(1)
-URI http://asc.fasb.org/extlink&oid=66008989&loc=d3e5212-111524

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 17
-URI http://asc.fasb.org/extlink&oid=66008989&loc=d3e5258-111524

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+ References

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Amount of investment of impaired financing receivables with related allowance for credit losses and without a related allowance for credit losses.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 14A
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=66008989&loc=SL6953550-111524

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