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Allowance For Loan Losses (Schedule Of Activity In The Allowance For Loan Losses By Segment) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended		3 Months Ended	6 Months Ended	3 Months Ended	6 Months Ended	3 Months Ended	6 Months Ended	3 Months Ended	6 Months Ended	3 Months Ended	6 Months Ended
	Jun. 30, 2011	Jun. 30, 2010	Jun. 30, 2011	Jun. 30, 2010	Jun. 30, 2011 Commercial, Financial And Agricultural [Member]	Jun. 30, 2011 Commercial, Financial And Agricultural [Member]	Jun. 30, 2011 Commercial Real Estate [Member]	Jun. 30, 2011 Commercial Real Estate [Member]	Jun. 30, 2011 Construction Real Estate [Member]	Jun. 30, 2011 Construction Real Estate [Member]	Jun. 30, 2011 Residential Real Estate [Member]	Jun. 30, 2011 Residential Real Estate [Member]	Jun. 30, 2011 Consumer [Member]	Jun. 30, 2011 Consumer [Member]	Jun. 30, 2011 Leases [Member]	Mar. 31, 2011 Leases [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Beginning balance	$ 148,530	$ 119,674	$ 143,575	$ 116,717	$ 11,791	$ 11,555	$ 25,220	$ 24,369	$ 71,835	$ 70,462	$ 32,415	$ 30,259	$ 7,265	$ 6,925	$ 5	$ 4
Charge-offs	42,305	13,273	53,811	28,851	5,330	7,171	6,565	8,350	23,679	27,099	4,789	7,276	1,942	3,915
Recoveries	1,433	1,025	3,794	3,010	327	896	22	824	117	213	390	891	577	967	3
Net Charge-offs	40,872	12,248	50,017	25,841	5,003	6,275	6,543	7,526	23,562	26,886	4,399	6,385	1,365	2,948	(3)
Provision	12,516	13,250	26,616	29,800	9,921	11,429	4,630	6,464	(8,160)	(3,463)	4,281	8,423	1,844	3,767	(4)
Ending balance	$ 120,174	$ 120,676	$ 120,174	$ 120,676	$ 16,709	$ 16,709	$ 23,307	$ 23,307	$ 40,113	$ 40,113	$ 32,297	$ 32,297	$ 7,744	$ 7,744	$ 4	$ 4

X

- Definition

Financing Receivables Allowance For Credit Losses Net Charge Offs

+ References

No definition available.

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X

- Definition

Charge to expense for financing receivables that are expected to be uncollectible.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 310

-SubTopic 10

-Section 50

-Paragraph 11B

-URI http://asc.fasb.org/extlink&oid=6965416&loc=SL6953423-111524

-Subparagraph (c)(2)

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X

- Definition

Reduction to the allowance for credit losses related to collections on financing receivables which have been partially or fully charged off as bad debts.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 310

-SubTopic 10

-Section 50

-Paragraph 11B

-URI http://asc.fasb.org/extlink&oid=6965416&loc=SL6953423-111524

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- Definition

Reduction to the allowance for credit losses related to financing receivables deemed uncollectible.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 310

-SubTopic 10

-Section 50

-Paragraph 11B

-URI http://asc.fasb.org/extlink&oid=6965416&loc=SL6953423-111524

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- Definition

The allowance for loan and lease losses represents the reserve to cover probable credit losses related to specifically identified loans and leases, as well as probable credit losses inherent in the remainder of the loan portfolio as of the balance sheet date. For banks, include currently required allocated transfer risk reserves. Include carryover of or adjustments to the allowance for loan losses in connection with business combinations determined to be appropriate.

+ References

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

-Publisher OTS

-Name Federal Regulation (FR)

-Number Title 12

-Chapter V

-Section 563c.102

-Paragraph 8

-Subparagraph a(ii)

-Subsection I

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



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

-Publisher SEC

-Name Staff Accounting Bulletin (SAB)

-Number Topic 6

-Section L

-Subsection 1



Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 114

-Paragraph 20

-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 FASB

-Name Accounting Standards Codification

-Topic 942

-SubTopic 210

-Section S99

-Paragraph 1

-Subparagraph (SX 210.9-03.7(d))

-URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878



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-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Article 9

-Section 03

-Paragraph 7

-Subparagraph d



Reference 6: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 5

-Paragraph 8, 9

-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 7: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 310

-SubTopic 30

-Section 50

-Paragraph 2

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