LONG-TERM DEBT LIABILITIES - Debt Extinguishment and Net Interest Expense (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2012	Sep. 30, 2011
Extinguishment of Debt Disclosures [Abstract]
Net (gain) loss on debt extinguishment	$ 0	$ 0	$ 0	$ 0
Net Interest Expense
Interest expense	12,114	2,618	36,005	7,973
Amortization of deferred financing costs	1,111	941	3,283	2,825
Amortization of original issue discount of senior notes	62	0	182	0
Interest expense on interest rate hedging agreements	0	1,712	1,392	5,706
Interest income and other investment income	(2)	(20)	(8)	(27)
Total net interest expense	$ 13,285	$ 5,251	$ 40,854	$ 16,477