Goodwill and Intangible Assets - Intangible Assets (Excluding Goodwill) (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2019	Dec. 31, 2018
Schedule of Finite-lived and Indefinite-lived Intangible Assets
Weighted-average Estimated Useful Life	14 years
Gross Carrying Amount	$ 329.3	$ 333.1
Accumulated Amortization	(105.0)	(101.0)
Total intangible assets	427.5	431.4
Trademarks and trade names
Schedule of Finite-lived and Indefinite-lived Intangible Assets
Indefinite-lived intangible assets	$ 98.2	98.3
Customer relationships
Schedule of Finite-lived and Indefinite-lived Intangible Assets
Weighted-average Estimated Useful Life	14 years
Gross Carrying Amount	$ 252.3	254.0
Accumulated Amortization	$ (96.1)	(92.0)
Unpatented technology
Schedule of Finite-lived and Indefinite-lived Intangible Assets
Weighted-average Estimated Useful Life	12 years
Gross Carrying Amount	$ 38.9	39.4
Accumulated Amortization	$ (5.5)	(5.1)
Land use rights
Schedule of Finite-lived and Indefinite-lived Intangible Assets
Weighted-average Estimated Useful Life	50 years
Gross Carrying Amount	$ 12.4	12.2
Accumulated Amortization	$ (1.3)	(1.3)
Trademarks and trade names
Schedule of Finite-lived and Indefinite-lived Intangible Assets
Weighted-average Estimated Useful Life	14 years
Gross Carrying Amount	$ 12.9	13.5
Accumulated Amortization	$ (1.0)	(1.1)
Patents and other
Schedule of Finite-lived and Indefinite-lived Intangible Assets
Weighted-average Estimated Useful Life	7 years
Gross Carrying Amount	$ 12.8	14.0
Accumulated Amortization	$ (1.1)	$ (1.5)