Other Expense (Income), net (Details) - USD ($) $ in Millions	3 Months Ended			9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Mar. 31, 2015	Sep. 30, 2016	Sep. 30, 2015
Other Income and Expenses [Abstract]
Loss on early extinguishment of debt	$ 0.0	$ 0.0		$ 11.1	$ 0.0
Third-party acquisition-related costs	0.0	0.0		2.5	0.0
Chapter 11 expenses, net	0.4	1.1		2.4	4.3
Interest income	(0.2)	(0.4)		0.1	(2.1)
Currency transaction effects	(0.4)	(0.1)		(1.0)	(0.3)
Net (gain) loss on sales of investments and disposals of assets	(0.1)	0.3		0.1	0.7
Bankruptcy-related charges, net	0.0	0.0		0.0	(8.7)
Other miscellaneous (income) expense	(0.2)	0.6		(1.9)	1.4
Total other (income) expense, net	$ (0.5)	$ 1.5		$ 13.3	$ (4.7)
Gain related to release of bankruptcy liabilities			$ 9.0