Accrued Liabilities (Warranty Accrual) (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011
Movement in Intangible Assets Arising from Insurance Contracts Acquired in Business Combination [Roll Forward]
Beginning balance	$ 11.5	$ 11.5
Net provisions for warranties issued	5.8	7.5
Net benefits for warranties existing at the beginning of the year		(0.2)
Payments related to the warranty accrual	(4.7)	(7.0)
Foreign currency translation	0.2	(0.3)
Ending balance	$ 12.8	$ 11.5