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
	Mar. 31, 2016	Mar. 31, 2015
Receivables [Abstract]
Balance at beginning of period	$ 53,398	$ 52,858
Provision for loan and lease losses	1,655	2,060
Loans charged off	(2,442)	(5,044)
Recoveries	1,121	3,202
Balance at end of period	53,732	53,076
Provision for loan and lease losses covered	(100)	(283)
Balance at beginning of period	53,398
Provision for Loan and Lease Losses	1,655	$ 2,060
Balance at end of period	$ 53,732