Goodwill and Intangible Assets - Schedule of Intangible Assets (Details) - USD ($) $ in Millions	Mar. 31, 2018	Dec. 31, 2017
Finite-Lived Intangible Assets [Line Items]
Gross carrying amount	$ 308.3	$ 301.3
Accumulated amortization	89.9	84.5
Non-amortizing intangible assets	16.1	15.9
Customer relationships
Finite-Lived Intangible Assets [Line Items]
Gross carrying amount	161.4	158.8
Accumulated amortization	36.8	33.5
Patents and acquired technology
Finite-Lived Intangible Assets [Line Items]
Gross carrying amount	95.6	92.1
Accumulated amortization	33.7	32.1
Tradenames
Finite-Lived Intangible Assets [Line Items]
Gross carrying amount	20.6	20.0
Accumulated amortization	9.7	9.5
Other
Finite-Lived Intangible Assets [Line Items]
Gross carrying amount	14.6	14.5
Accumulated amortization	$ 9.7	$ 9.4