Financial Instruments (Details) (USD $) In Millions, unless otherwise specified	Mar. 31, 2013	Dec. 31, 2012
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Senior secured notes, interest (in hundredths)	9.50%	9.50%
9.5% senior secured notes, carrying value	$ 304.4	$ 304.1
Fair value of ABL facility	45.0	20.0
Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
9.5% senior secured notes, fair value	$ 311.3	$ 310.0