Restructuring and Other Charges - Restructuring Reserve Activity (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015	Aug. 15, 2016
Restructuring and Related Activities [Abstract]
Balance at January 1		$ 5.6	$ 4.7	$ 7.6
Liabilities incurred	$ 7.4	7.6	12.8	17.8
Liabilities acquired		$ 0.0		0.0	$ 45.5
Liabilities paid/settled			(11.7)	$ (19.8)
Balance at June 30	$ 51.3		$ 51.3