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Goodwill and Intangible Assets - Intangible Assets (Excluding Goodwill) (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2018	Dec. 31, 2017
Schedule of Finite-lived and Indefinite-lived Intangible Assets
Weighted-average Estimated Useful Life	15 years
Gross Carrying Amount	$ 298.5	$ 295.0
Accumulated Amortization	(103.6)	(97.6)
Total intangible assets	403.6	400.1
Trademarks and trade names
Schedule of Finite-lived and Indefinite-lived Intangible Assets
Indefinite-lived intangible assets	$ 105.1	105.1
Customer relationships
Schedule of Finite-lived and Indefinite-lived Intangible Assets
Weighted-average Estimated Useful Life	14 years
Gross Carrying Amount	$ 247.1	246.3
Accumulated Amortization	$ (93.1)	(88.2)
Unpatented technology
Schedule of Finite-lived and Indefinite-lived Intangible Assets
Weighted-average Estimated Useful Life	12 years
Gross Carrying Amount	$ 28.8	26.8
Accumulated Amortization	$ (5.3)	(4.5)
Land use rights
Schedule of Finite-lived and Indefinite-lived Intangible Assets
Weighted-average Estimated Useful Life	50 years
Gross Carrying Amount	$ 14.0	13.4
Accumulated Amortization	$ (1.3)	(1.2)
Trademarks and trade names
Schedule of Finite-lived and Indefinite-lived Intangible Assets
Weighted-average Estimated Useful Life	14 years
Gross Carrying Amount	$ 5.4	5.5
Accumulated Amortization	$ (2.7)	(2.9)
Patents and other
Schedule of Finite-lived and Indefinite-lived Intangible Assets
Weighted-average Estimated Useful Life	6 years
Gross Carrying Amount	$ 3.2	3.0
Accumulated Amortization	$ (1.2)	$ (0.8)

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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.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 30
-Section 50
-Paragraph 1
-Subparagraph (a)(3)
-URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16265-109275

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

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 30
-Section 50
-Paragraph 2
-Subparagraph (a)(1)
-URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275

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

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 30
-Section 50
-Paragraph 2
-Subparagraph (a)(1)
-URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275

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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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Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 30
-Section 50
-Paragraph 2
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Amount before accumulated amortization of intangible assets, excluding goodwill.

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