OTHER REAL ESTATE OWNED (OREO) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended										3 Months Ended							3 Months Ended
	Jun. 30, 2013	Mar. 31, 2013	Jun. 30, 2013 Commercial real estate	Dec. 31, 2012 Commercial real estate	Jun. 30, 2013 Construction and land development	Dec. 31, 2012 Construction and land development	Jun. 30, 2013 Multi-family	Dec. 31, 2012 Multi-family	Jun. 30, 2013 Single family residence	Dec. 31, 2012 Single family residence	Jun. 30, 2013 Non-Covered OREO	Mar. 31, 2013 Non-Covered OREO	Jun. 30, 2013 Non-Covered OREO Commercial real estate	Dec. 31, 2012 Non-Covered OREO Commercial real estate	Jun. 30, 2013 Non-Covered OREO Construction and land development	Dec. 31, 2012 Non-Covered OREO Construction and land development	Jun. 30, 2013 Non-Covered OREO Single family residence	Jun. 30, 2013 Covered OREO	Mar. 31, 2013 Covered OREO	Jun. 30, 2013 Covered OREO Commercial real estate	Dec. 31, 2012 Covered OREO Commercial real estate	Jun. 30, 2013 Covered OREO Construction and land development	Dec. 31, 2012 Covered OREO Construction and land development	Jun. 30, 2013 Covered OREO Multi-family	Dec. 31, 2012 Covered OREO Multi-family	Jun. 30, 2013 Covered OREO Single family residence	Dec. 31, 2012 Covered OREO Single family residence
Roll Forward of OREO, net of the valuation allowance
Balance, at the beginning of the period	$ 53,272	$ 56,414	$ 18,422	$ 13,319	$ 39,356	$ 38,596	$ 3,807	$ 4,239	$ 2,961	$ 260	$ 35,961	$ 33,572	$ 9,743	$ 1,684	$ 33,050	$ 31,888	$ 2,639	$ 17,311	$ 22,842	$ 8,679	$ 11,635	$ 6,306	$ 6,708	$ 3,807	$ 4,239	$ 322	$ 260
Addition from the FCAL acquisitions	13,772										10,092							3,680
Foreclosures	4,110	4,980									1,035	3,500						3,075	1,480
Payments to third parties	14										14
Provision for losses	(292)	(1,185)										(92)						(292)	(1,093)
Reductions related to sales	(6,330)	(6,937)									(1,670)	(1,019)						(4,660)	(5,918)
Balance, at the end of the period	$ 64,546	$ 53,272	$ 18,422	$ 13,319	$ 39,356	$ 38,596	$ 3,807	$ 4,239	$ 2,961	$ 260	$ 45,432	$ 35,961	$ 9,743	$ 1,684	$ 33,050	$ 31,888	$ 2,639	$ 19,114	$ 17,311	$ 8,679	$ 11,635	$ 6,306	$ 6,708	$ 3,807	$ 4,239	$ 322	$ 260