DERIVATIVE INSTRUMENTS AND HEDGING ACTIVITIES (Details 2) (Interest rate derivatives, Designated as cash flow hedges, USD $) In Thousands, unless otherwise specified	3 Months Ended	9 Months Ended
	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Interest rate derivatives | Designated as cash flow hedges
Derivative instruments and hedging activities
Amount of Gain or (Loss) Recognized in Other Comprehensive Income on Derivative, Effective Portion	$ (1,192)	$ 6,255	$ (892)
Amount of Gain or (Loss) Reclassified from Accumulated Other Comprehensive Income into Income, Effective Portion	1,044	6,255	3,100
Amount of Gain or (Loss) Reclassified from Accumulated Other Comprehensive Income into Income, Ineffective Portion		$ 764