Interest and Other Income (Expense), Net (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Interest and Other Income (Expense), Net
Interest expense, net	$ (3.4)	$ (3.0)	$ (9.4)	$ (9.2)
Exchange gains (losses) on foreign currency transactions		(2.1)	(1.6)	(5.4)
Loss on disposal of product line				(0.2)
Other	0.5	0.5	(0.1)	0.5
Interest and other income (expense), net	$ (2.9)	$ (4.6)	$ (11.1)	$ (14.3)