ALLOWANCE FOR LOAN AND LEASE LOSSES - Changes in the Allowance for Loan and Lease Losses for the Current and Comparable Quarter and Year-to-Date (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Receivables [Abstract]
Balance at beginning of period	$ 44,375	$ 42,785	$ 43,149	$ 42,820
Provision for loan and lease losses	3,760	2,389	5,495	4,732
Loans charged off	(2,049)	(3,687)	(3,416)	(6,815)
Recoveries	845	641	1,703	1,391
Balance at end of period	46,931	42,128	46,931	42,128
Balance at beginning of period	9,357	10,291	10,249	10,038
Provision for loan and lease losses covered	277	681	197	398
Loans charged-off	(653)	(1,585)	(1,728)	(3,501)
Recoveries	796	1,361	1,059	3,813
Balance at end of period	9,777	10,748	9,777	10,748
Balance at beginning of period	53,732	53,076	53,398	52,858
Provision for Loan and Lease Losses	4,037	3,070	5,692	5,130
Loans charged-off	(2,702)	(5,272)	(5,144)	(10,316)
Recoveries	1,641	2,002	2,762	5,204
Balance at end of period	$ 56,708	$ 52,876	$ 56,708	$ 52,876