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Goodwill and Intangible Assets - Intangible Assets (Excluding Goodwill) (Details) - USD ($) $ in Millions	6 Months Ended
	Jun. 30, 2019	Dec. 31, 2018
Schedule of Finite-lived and Indefinite-lived Intangible Assets
Weighted-average Estimated Useful Life	14 years
Gross Carrying Amount	$ 328.0	$ 333.1
Accumulated Amortization	(109.9)	(101.0)
Total intangible assets	426.3	431.4
Trademarks and trade names
Schedule of Finite-lived and Indefinite-lived Intangible Assets
Indefinite-lived intangible assets	$ 98.3	98.3
Customer relationships
Schedule of Finite-lived and Indefinite-lived Intangible Assets
Weighted-average Estimated Useful Life	14 years
Gross Carrying Amount	$ 252.4	254.0
Accumulated Amortization	$ (100.1)	(92.0)
Unpatented technology
Schedule of Finite-lived and Indefinite-lived Intangible Assets
Weighted-average Estimated Useful Life	12 years
Gross Carrying Amount	$ 38.6	39.4
Accumulated Amortization	$ (5.9)	(5.1)
Land use rights
Schedule of Finite-lived and Indefinite-lived Intangible Assets
Weighted-average Estimated Useful Life	50 years
Gross Carrying Amount	$ 12.1	12.2
Accumulated Amortization	$ (1.4)	(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	$ 13.0	13.5
Accumulated Amortization	$ (1.1)	(1.1)
Patents and other
Schedule of Finite-lived and Indefinite-lived Intangible Assets
Weighted-average Estimated Useful Life	7 years
Gross Carrying Amount	$ 11.9	14.0
Accumulated Amortization	$ (1.4)	$ (1.5)

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Schedule of Finite-lived and Indefinite-lived Intangible Assets [Line Items]

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Weighted average amortization period of finite-lived intangible assets acquired either individually or as part of a group of assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Accumulated amount of amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

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Amount before amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

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-Publisher FASB
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Amount of assets, excluding financial assets and goodwill, lacking physical substance and having a projected indefinite period of benefit.

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