NON-COVERED LOANS AND ALLOWANCE FOR LOAN LOSSES (Details 12) (USD $)	3 Months Ended								12 Months Ended
	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2012	Sep. 30, 2012	Jun. 30, 2012	Mar. 31, 2012	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Allowance for loan losses disclosures
Allowance on covered loans	$ 7,745,000				$ 5,153,000				$ 7,745,000	$ 5,153,000
Percentage of allowance allocated to covered loans	3.10%								3.10%
Provision for covered loans	(820,000)	(964,000)	723,000	5,089,000	(689,000)	5,179,000	(1,095,000)	1,621,000	4,028,000	5,016,000	2,422,000
Percentage of income from covered loans under loss-sharing agreements with the FDIC	80.00%								80.00%
Covered loans accounted for under ASC 310-30
Allowance for loan losses disclosures
Allowance on covered loans	2,200,000								2,200,000
Provision for covered loans									2,200,000
Covered loans accounted for under ASC 310-30 | Commercial Real Estate ("CRE")
Allowance for loan losses disclosures
Allowance on covered loans	2,200,000								2,200,000
Specific covered loans outside of the scope of ASC 310-30
Allowance for loan losses disclosures
Allowance on covered loans	5,500,000								5,500,000
Allowance allocated to additional advances	5,500,000				5,200,000				5,500,000	5,200,000
Percentage of allowance allocated to covered loans	2.20%				2.20%				2.20%	2.20%
Provision for covered loans									1,800,000	5,000,000	2,400,000
Charge-offs									1,400,000	6,500,000
Income from covered loans under loss-sharing agreements with the FDIC									1,100,000	5,200,000
Percentage of income from covered loans under loss-sharing agreements with the FDIC	80.00%				80.00%				80.00%	80.00%
Net impact to earnings due to charge-offs									287,000	1,300,000
Specific covered loans outside of the scope of ASC 310-30 | Commercial Real Estate ("CRE")
Allowance for loan losses disclosures
Allowance allocated to additional advances	1,800,000				2,500,000				1,800,000	2,500,000
Charge-offs									380,000	1,500,000
Specific covered loans outside of the scope of ASC 310-30 | Commercial and Industrial ("C&I")
Allowance for loan losses disclosures
Allowance allocated to additional advances	3,200,000				2,400,000				3,200,000	2,400,000
Charge-offs									$ 1,000,000	$ 5,000,000