Goodwill and Other Intangible Assets, Net - Other Intangible Assets (Detail) - USD ($) $ in Millions	12 Months Ended
Dec. 31, 2019	Dec. 31, 2018
Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible total	$ 256.5	$ 230.1
Accumulated amortization	(140.7)	(121.2)
Finite-live intangible asset, net	115.8	108.9
Indefinite-lived intangibles	22.2	27.2
Other Intangible Assets	278.7	257.3
Other intangible assets, net	138.0	136.1
Customer relationships
Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible total	176.3	164.1
Accumulated amortization	(99.6)	(86.2)
Finite-live intangible asset, net	$ 76.7	77.9
Finite-Lived Intangible Asset, Useful Life	12 years 4 months 24 days
Proprietary technology
Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible total	$ 58.4	53.7
Accumulated amortization	(28.1)	(25.6)
Finite-live intangible asset, net	$ 30.3	28.1
Finite-Lived Intangible Asset, Useful Life	12 years 7 months 6 days
Patents and other
Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible total	$ 21.8	12.3
Accumulated amortization	(13.0)	(9.4)
Finite-live intangible asset, net	$ 8.8	$ 2.9
Finite-Lived Intangible Asset, Useful Life	6 years 1 month 6 days

Finite And Infinite Lived Intangible Assets Gross

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Useful life of finite-lived intangible assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

No definition available.

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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/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
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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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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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

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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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Sum of the carrying amounts of all intangible assets, excluding goodwill, as of the balance sheet date, net of accumulated amortization and impairment charges.

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