LONG-TERM DEBT AND LEASE FINANCING OBLIGATION (Details 2) (USD $)			1 Months Ended			3 Months Ended			1 Months Ended			1 Months Ended
	Mar. 31, 2012	Dec. 31, 2011	Apr. 30, 2011 7.125% senior notes due 2013 and 9.5% senior notes due 2014	Mar. 31, 2012 7.125% senior notes due 2013	Mar. 31, 2012 9.5% senior notes due 2014	Mar. 31, 2012 Lease financing obligation Y	Dec. 31, 2011 Lease financing obligation	Mar. 31, 2011 Lease financing obligation	Dec. 30, 2011 Other	Mar. 31, 2012 ABL Revolver	Dec. 31, 2011 ABL Revolver	Oct. 31, 2011 10.75% senior subordinated notes due 2016	Oct. 20, 2011 10.75% senior subordinated notes due 2016
Long-term debt
Interest rate (as a percent)				7.125%	9.50%								10.75%
Outstanding principal amount										$ 29,000,000	$ 29,000,000
Amount of collateralized letter of credit	12,900,000	15,800,000				5,900,000		8,000,000
Principal debt extinguished, net of original issuance discounts			22,200,000						18,000,000
Total debt	29,000,000
Redemption price per 100 face value													105.375
Lease financing obligation	112,119,000	109,899,000				112,100,000	109,900,000
Lease financing obligation term (in years)						10
Future minimum lease payments
2012	5,600,000
2013	7,700,000
2014	7,800,000
2015	8,100,000
2016	8,100,000
2017	2,000,000
Payments made for debt extinguishment												$ 44,100,000