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, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Receivables [Abstract]
Balance at beginning of period	$ 47,047	$ 50,952	$ 47,777	$ 52,576
Provision for loan and lease losses - uncovered	1,413	3,613	6,863	15,235
Loans charged off	(5,111)	(5,804)	(12,515)	(19,764)
Recoveries	2,165	431	3,389	1,145
Balance at end of period	$ 45,514	$ 49,192	$ 45,514	$ 49,192
Percentage of Credit Loss Allowance to Loans	1.33%	1.60%	1.33%	1.60%