Commitments and Contingencies (Details 2) (USD $) In Millions	9 Months Ended
	Sep. 30, 2011
Changes in the accrued product quality issue
Total accrued product quality issue as of December 31, 2010	$ 16.0
Product quality claims	(4.5)
Change in estimates associated with pre-existing liabilities	(1.4)
Total accrued product quality issue as of September 30, 2011	$ 10.1