Debt (Details) (USD $)	Mar. 31, 2013	Dec. 31, 2012
Debt Instrument [Line Items]
Total debt	$ 349,395,000	$ 324,133,000
9.5% senior secured notes, net of discount	304,400,000	304,100,000
Senior secured notes, interest (in hundredths)	9.50%	9.50%
9.5% senior secured notes [Member]
Debt Instrument [Line Items]
9.5% senior secured notes, net of discount	304,400,000	304,100,000
Senior secured notes, interest (in hundredths)	9.50%	9.50%
ABL Credit Facility [Member]
Debt Instrument [Line Items]
Amount outstanding	45,000,000	20,000,000
Excess availability of facility to maintain fixed charge coverage ratio, minimum	$ 10,000,000
Excess availability of facility as a percentage of commitment to maintain fixed charge coverage ratio, minimum (in hundredths)	15.00%