LONG-TERM DEBT (Details) (USD $)						3 Months Ended		1 Months Ended
	Mar. 31, 2013	Dec. 31, 2012	Mar. 31, 2013 11.5% Senior Secured Second Lien Notes	Dec. 31, 2012 11.5% Senior Secured Second Lien Notes	Aug. 02, 2011 11.5% Senior Secured Second Lien Notes	Mar. 31, 2013 11.5% Senior Secured Second Lien Notes Interest rate, cash basis	Mar. 31, 2013 11.5% Senior Secured Second Lien Notes PIK Interest	Aug. 31, 2012 PIK Notes	Feb. 29, 2012 PIK Notes	Mar. 31, 2013 PIK Notes	Mar. 31, 2013 Credit Facility	Dec. 31, 2012 Credit Facility	Aug. 01, 2011 Credit Facility
Long-term debt
Long-term debt	$ 557,245,000	$ 556,716,000	$ 557,245,000	$ 556,716,000
Unamortized discount			13,419,000	13,948,000
Interest rate (as a percent)			11.50%
Amount of debt previously issued					565,000,000
Issue price as percentage of principal amount					97.00%
Debt issuance								5,600,000	5,600,000
Percentage of interest payment						10.50%	1.00%
Outstanding amount of debt										570,700,000
Maximum borrowing capacity													20,000,000
Amount outstanding											$ 0	$ 0