Debt (Details) (USD $) In Millions, unless otherwise specified												1 Months Ended
	Sep. 30, 2012	Dec. 31, 2011	Sep. 30, 2011	Sep. 30, 2012 Working capital line of credit China	Dec. 31, 2011 Working capital line of credit China	Sep. 30, 2012 Term loan	Dec. 31, 2011 Term loan	Sep. 30, 2012 Senior secured credit facility - term loan due 2015	Dec. 31, 2011 Senior secured credit facility - term loan due 2015	Sep. 30, 2012 Senior secured credit facility - revolving loan due 2015	Dec. 31, 2011 Senior secured credit facility - revolving loan due 2015	Jun. 30, 2012 6.75% senior subordinated notes due 2015	Feb. 28, 2011 6.75% senior subordinated notes due 2015	Dec. 31, 2011 6.75% senior subordinated notes due 2015	Sep. 30, 2012 Capital lease and other obligations	Dec. 31, 2011 Capital lease and other obligations
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	$ 17.1	$ 12.6		$ 7.0	$ 4.8	$ 10.0	$ 7.5								$ 0.1	$ 0.3
Long-term notes payable and capital lease obligations	279.3	238.3						77.5	85.0	200.0	78.0			73.5	1.8	1.8
Total notes payable and capital lease obligations	296.4	250.9
Senior subordinated notes redeemed												73.5	150.0
Call premium (as a percent)												1.125%	2.25%
Add-on to senior secured credit facility												$ 75