Segment Information - Financial Information by Reportable Segment (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Net Sales:
Net Sales	$ 904.3	$ 890.5	$ 2,707.2	$ 2,635.9
Adjusted EBITDA:
Adjusted EBITDA	196.6	190.1	594.9	551.4
Performance Solutions
Net Sales:
Net Sales	480.6	454.9	1,390.0	1,312.9
Adjusted EBITDA:
Adjusted EBITDA	115.5	109.9	320.5	290.7
Agricultural Solutions
Net Sales:
Net Sales	423.7	435.6	1,317.2	1,323.0
Adjusted EBITDA:
Adjusted EBITDA	$ 81.1	$ 80.2	$ 274.4	$ 260.7