ALLOWANCE FOR LOAN AND LEASE LOSSES - Additional Information (Details) (USD $)	3 Months Ended		9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Financing Receivable, Allowance for Credit Losses [Line Items]
Net charge-offs	$ 700,000	$ 15,000,000	$ 4,600,000	$ 28,000,000
Provision for loan and lease losses	(200,000)	5,293,000	(2,805,000)	6,052,000
Allowance for covered loan losses	11,500,000		11,500,000
Loss sharing expense	1,002,000	1,724,000	4,036,000	5,588,000
Loss (gain) - covered other real estate owned	1,433,000	(204,000)	1,002,000	2,165,000
FDIC loss sharing income	$ (192,000)	$ 5,555,000	$ 408,000	$ 7,105,000