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Loans (Details) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2014	Dec. 31, 2013
Summary of loans, by loan type
Total loans	$ 5,437,515	$ 5,199,235
Loans Receivable Commercial Financial And Agricultural [Member]
Summary of loans, by loan type
Total loans	3,000,427	2,894,779
Residential Mortgage [Member]
Summary of loans, by loan type
Total loans	860,867	847,692
Commercial Real Estate Other Construction And Land Development Receivable [Member]
Summary of loans, by loan type
Total loans	1,324,207	1,208,508
Consumer Loan [Member]
Summary of loans, by loan type
Total loans	62,885	66,414
Foreign Receivables [Member]
Summary of loans, by loan type
Total loans	$ 189,129	$ 181,842

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- Definition

Amount before allowance and after deduction of deferred interest and fees, unamortized costs and premiums and discounts from face amounts, of loans and leases held in portfolio, including but not limited to, commercial and consumer loans. Excludes loans and leases covered under loss sharing agreements.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 310

-SubTopic 10

-Section 50

-Paragraph 4

-URI http://asc.fasb.org/extlink&oid=28368275&loc=d3e5074-111524



Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 310

-SubTopic 10

-Section 45

-Paragraph 2

-URI http://asc.fasb.org/extlink&oid=28367877&loc=d3e4428-111522

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