BORROWINGS Borrowings - - Additional Information (Details) (USD $) In Thousands, unless otherwise specified			6 Months Ended
	Jun. 30, 2013	Dec. 31, 2012	Jun. 30, 2013 Maximum
Debt Instrument [Line Items]
Federal Home Loan Bank short-term borrowings	$ 505,900	$ 502,000
Securities Sold under Agreements to Repurchase	$ 65,000	$ 65,000
Securities Sold under Agreements to Repurchase, Remaining Contractual Term			3 years
Assets Sold under Agreements to Repurchase, Interest Rate	3.50%	3.50%