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Loans (Details) (USD $) In Thousands	Sep. 30, 2011	Dec. 31, 2010
Summary of net loans, by loan type
Net loans	$ 5,122,200	$ 5,410,003
Commercial, financial and agricultural
Summary of net loans, by loan type
Net loans	2,590,879	2,615,878
Real estate - mortgage
Summary of net loans, by loan type
Net loans	928,885	948,982
Commercial real estate: other construction and land development
Summary of net loans, by loan type
Net loans	1,255,368	1,473,471
Consumer
Summary of net loans, by loan type
Net loans	101,294	126,047
Foreign
Summary of net loans, by loan type
Net loans	$ 245,774	$ 245,625

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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X

- Definition

Reflects the aggregate gross carrying amount of all categories of loans and leases held in portfolio, after deducting deferred income, but before deducting the allowance for losses on loans and leases.

+ 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=6965416&loc=d3e5074-111524



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-Publisher FASB

-Name Accounting Standards Codification

-Topic 310

-SubTopic 10

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-Publisher AICPA

-Name Statement of Position (SOP)

-Number 01-6

-Paragraph 13

-Subparagraph e

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.



Reference 4: http://www.xbrl.org/2003/role/presentationRef

-Publisher AICPA

-Name Audit and Accounting Guide (AAG)

-Number AAG-DEP

-Chapter 8

-Paragraph 116

-IssueDate 2006-05-01

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.



Reference 5: http://www.xbrl.org/2003/role/presentationRef

-Publisher OTS

-Name Federal Regulation (FR)

-Number Title 12

-Chapter V

-Section 563c.102

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-LegacyDoc This is a non-GAAP reference that was included in the 2009 taxonomy. It will be removed from future versions of this taxonomy.

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