INTEREST EXPENSE (Details) (USD $)	3 Months Ended		6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Interest expense, debt	$ 28,760,000	$ 28,346,000	$ 50,476,000	$ 57,373,000
Amortization of capitalized debt issuance costs	5,817,000	1,146,000	10,061,000	2,290,000
Amortization of debt issuance discount and premium, net	4,521,000	1,687,000	6,472,000	3,523,000
Total debt related expenses	10,338,000	2,833,000	16,533,000	5,813,000
Total interest expense	39,098,000	31,179,000	67,009,000	63,186,000
Interest Paid, Net			52,800,000	66,000,000
Interest on Senior Notes [Member]
Interest expense, debt	27,769,000	28,193,000	49,307,000	57,088,000
Interest on capital leases and other financing arrangements [Member]
Interest expense, debt	$ 991,000	$ 153,000	$ 1,169,000	$ 285,000