OTHER REAL ESTATE OWNED (OREO) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended								3 Months Ended							3 Months Ended
	Jun. 30, 2012	Mar. 31, 2012	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012 Commercial real estate	Dec. 31, 2011 Commercial real estate	Jun. 30, 2012 Construction and land development	Dec. 31, 2011 Construction and land development	Jun. 30, 2012 Single family residence	Dec. 31, 2011 Single family residence	Jun. 30, 2012 Non-Covered OREO	Mar. 31, 2012 Non-Covered OREO	Jun. 30, 2012 Non-Covered OREO Commercial real estate	Dec. 31, 2011 Non-Covered OREO Commercial real estate	Jun. 30, 2012 Non-Covered OREO Construction and land development	Dec. 31, 2011 Non-Covered OREO Construction and land development	Dec. 31, 2011 Non-Covered OREO Single family residence	Jun. 30, 2012 Covered OREO	Mar. 31, 2012 Covered OREO	Jun. 30, 2012 Covered OREO Commercial real estate	Dec. 31, 2011 Covered OREO Commercial real estate	Jun. 30, 2012 Covered OREO Construction and land development	Dec. 31, 2011 Covered OREO Construction and land development	Jun. 30, 2012 Covered OREO Single family residence	Dec. 31, 2011 Covered OREO Single family residence
Rollforward of OREO, net of the valuation allowance
Balance, at the beginning of the period	$ 76,094	$ 81,918	$ 81,918		$ 35,526	$ 38,056	$ 34,123	$ 40,249	$ 3,183	$ 3,613	$ 46,206	$ 48,412	$ 17,630	$ 23,003	$ 24,112	$ 24,788	$ 621	$ 29,888	$ 33,506	$ 17,896	$ 15,053	$ 10,011	$ 15,461	$ 3,183	$ 2,992
Foreclosures	10,641	9,080									684	1,839						9,957	7,241
Payments to third parties	91	622									91	622
Provision for losses	(2,805)	(2,981)	5,786	4,734							(101)	(752)						(2,704)	(2,229)
Reductions related to sales	(11,189)	(12,545)									(5,138)	(3,915)						(6,051)	(8,630)
Balance, at the end of the period	$ 72,832	$ 76,094	$ 72,832		$ 35,526	$ 38,056	$ 34,123	$ 40,249	$ 3,183	$ 3,613	$ 41,742	$ 46,206	$ 17,630	$ 23,003	$ 24,112	$ 24,788	$ 621	$ 31,090	$ 29,888	$ 17,896	$ 15,053	$ 10,011	$ 15,461	$ 3,183	$ 2,992