ESTIMATED FAIR VALUES Fair Value of OREO (Details) (Fair Value, Measurements, Nonrecurring [Member], Fair Value, Inputs, Level 3 [Member], USD $) In Thousands, unless otherwise specified	Dec. 31, 2011	Dec. 31, 2010
Covered OREO [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Other Real Estate Opportunites Current Year Foreclosures Fair Value Disclosure	$ 128,178	$ 116,590
Other Real Estate Opportunites Loan Charge Off Due To Measurement And Initial Recognition Of Oreo Fair Value Disclosure	14,846	62,327
Other Real Estate Opportunites Write Downs Recorded Subsequent To Foreclosure For Oreo Fair Value Disclosure	19,994	9,185
Other Real Estate Opportunites Fair Value Of Oreo Remeasured In Current Year Fair Value Disclosure	30,008	34,849
Non-covered OREO [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Other Real Estate Opportunites Current Year Foreclosures Fair Value Disclosure	38,612	40,328
Other Real Estate Opportunites Loan Charge Off Due To Measurement And Initial Recognition Of Oreo Fair Value Disclosure	51,136	14,220
Other Real Estate Opportunites Write Downs Recorded Subsequent To Foreclosure For Oreo Fair Value Disclosure	7,486	7,099
Other Real Estate Opportunites Fair Value Of Oreo Remeasured In Current Year Fair Value Disclosure	$ 14,905	$ 15,069