ESTIMATED FAIR VALUES (Assets and Liabilities Measured with Significant Unobservable Inputs) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
Dec. 31, 2012	Dec. 31, 2011
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Beginning balance	$ 198,998	$ 165,590
Acquired in FDIC-assisted transactions		36,303
Additions	140,645	176,892
Sales	(157,999)	152,307
Writedowns	(35,554)	27,480
Ending balance	146,090	198,998
Covered OREO [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Beginning balance	148,599	112,748
Acquired in FDIC-assisted transactions		36,303
Additions	105,059	138,280
Sales	(124,435)	118,738
Writedowns	(26,646)	19,994
Ending balance	102,577	148,599
Non-covered OREO [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Beginning balance	50,399	52,842
Acquired in FDIC-assisted transactions		0
Additions	35,586	38,612
Sales	(33,564)	33,569
Writedowns	(8,908)	7,486
Ending balance	$ 43,513	$ 50,399

Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Acquired

No definition available.

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- Definition

Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Write Downs

+ References

No definition available.

+ Details

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- Details

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- Definition

Purchases that have taken place during the period in relation to assets measured at fair value and categorized within Level 3 of the fair value hierarchy.

+ References

+ Details

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Period Type:	duration

- Definition

Sales that have taken place during the period in relation to assets measured at fair value and categorized within Level 3 of the fair value hierarchy.

+ References

+ Details

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- Definition

This element represents an asset measured at fair value using significant unobservable inputs (Level 3) which is required for reconciliation purposes of beginning and ending balances.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 820

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (c)

-URI http://asc.fasb.org/extlink&oid=7578670&loc=d3e19207-110258

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

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 157

-Paragraph 32

-Subparagraph c

-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.

+ Details

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