Accounts Payable and Accrued Liabilities (Details) (USD $) In Millions, unless otherwise specified	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Accounts Payable and Accrued Liabilities [Abstract]
Accounts payable	$ 71.1	$ 58.6
Salaries and wages payable	32.9	21.9
Taxes other than income taxes	5.0	4.4
Current portion of warranty reserves	12.0	12.0	10.0
Accrued interest	2.5	10.3
Other accrued liabilities	16.0	15.0
Income taxes payable	0	0.1
Total Accounts payable and accrued liabilities	$ 139.5	$ 122.3