LOANS AND ALLOWANCE FOR LOAN LOSSES (Details 8) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012	Jun. 30, 2011
Beginning balance	$ 130,348	$ 183,973	$ 137,710	$ 201,033
Loans charged-off	(17,947)	(49,258)	(34,400)	(86,163)
Recoveries of loans previously charged-off	7,826	3,471	14,917	13,316
Net loans charged-off	(10,121)	(45,787)	(19,483)	(72,847)
Provision (benefit) for loan losses	0	23,000	2,000	33,000
Balance, end of period	$ 120,227	$ 161,186	$ 120,227	$ 161,186