Debt (Details) (USD $) In Millions, unless otherwise specified	Mar. 31, 2012	Dec. 31, 2011	Mar. 31, 2011	Mar. 31, 2012 Working capital line of credit China	Dec. 31, 2011 Working capital line of credit China	Mar. 31, 2012 Capital lease and other obligations	Dec. 31, 2011 Capital lease and other obligations	Mar. 31, 2012 Term loan	Dec. 31, 2011 Term loan	Mar. 31, 2012 6.75% senior subordinated notes due 2015	Dec. 31, 2011 6.75% senior subordinated notes due 2015	Feb. 28, 2011 6.75% senior subordinated notes due 2015	Mar. 31, 2012 Senior secured credit facility - term loan due 2015	Dec. 31, 2011 Senior secured credit facility - term loan due 2015	Mar. 31, 2012 Senior secured credit facility - revolving loan due 2015	Dec. 31, 2011 Senior secured credit facility - revolving loan due 2015
Debt
Interest rate (as a percent)	6.75%		6.75%							6.75%	6.75%	6.75%
Notes payable and current maturities of long-term liabilities	$ 14.5	$ 12.6		$ 5.5	$ 4.8	$ 0.2	$ 0.3	$ 8.8	$ 7.5
Long-term notes payable and capital lease obligations	294.8	238.3				1.8	1.8			73.5	73.5		82.5	85.0	137.0	78.0
Total notes payable and capital lease obligations	309.3	250.9
Estimated Fair Values of Notes Payable
Fair value of notes payable										$ 74	$ 74		$ 91	$ 93