INTEREST EXPENSE (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Interest Paid	$ 18,457	$ 76,154	$ 108,344
Interest expense, debt	114,730	104,570	100,320
Amortization of capitalized debt issuance costs	15,484	18,297	4,101
Amortization of debt issuance discount and premium, net	41,230	19,138	7,288
Total interest expense	$ 171,444	$ 142,005	$ 111,709