Goodwill and Intangible Assets - Finite-lived intangible Assets (Details) - USD ($) $ in Millions	Jun. 30, 2017	Dec. 31, 2016
Finite-Lived Intangible Assets [Line Items]
Gross	$ 459.8	$ 435.9
Accumulated Amortization	(90.6)	(80.8)
Net	369.2	355.1
Customer relationships
Finite-Lived Intangible Assets [Line Items]
Gross	383.5	356.9
Accumulated Amortization	(55.6)	(43.7)
Net	327.9	313.2
Patents
Finite-Lived Intangible Assets [Line Items]
Gross	2.0	2.2
Accumulated Amortization	(0.5)	(0.4)
Net	1.5	1.8
Brands
Finite-Lived Intangible Assets [Line Items]
Gross	14.9	13.6
Accumulated Amortization	(5.5)	(4.7)
Net	9.4	8.9
Purchased and licensed technologies
Finite-Lived Intangible Assets [Line Items]
Gross	56.2	60.3
Accumulated Amortization	(26.7)	(30.1)
Net	29.5	30.2
Other intangibles
Finite-Lived Intangible Assets [Line Items]
Gross	3.2	2.9
Accumulated Amortization	(2.3)	(1.9)
Net	$ 0.9	$ 1.0

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

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.

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