GOODWILL AND OTHER INTANGIBLE ASSETS, NET Other Intangible Assets (Detail) - USD ($) $ in Millions	Mar. 31, 2021	Dec. 31, 2020
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Assets, Gross	$ 225.0	$ 226.2
Indefinite-lived intangible assets, Gross/Net Carrying Amount	16.6	16.8
Other Intangible Assets, Gross Carrying Amount	241.6	243.0
Accumulated Amortization	(141.3)	(136.6)
Finite-live intangible asset, net of accumulated amortization	83.7	89.6
Other intangible assets, net	100.3	106.4
Customer relationships
Finite-Lived Intangible Assets [Line Items]
Customer Relationships, Gross Carrying Amount	162.4	163.3
Accumulated Amortization	(104.5)	(101.7)
Finite-live intangible asset, net of accumulated amortization	57.9	61.6
Proprietary technology
Finite-Lived Intangible Assets [Line Items]
Proprietary Technology, Gross Carrying Amount	46.4	46.7
Accumulated Amortization	(24.2)	(23.4)
Finite-live intangible asset, net of accumulated amortization	22.2	23.3
Patents and other
Finite-Lived Intangible Assets [Line Items]
Patents and Other, Gross Carrying Amount	16.2	16.2
Accumulated Amortization	(12.6)	(11.5)
Finite-live intangible asset, net of accumulated amortization	$ 3.6	$ 4.7

Finite And Infinite Lived Intangible Assets Gross

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Gross carrying amount before accumulated amortization as of the balance sheet date to an asset acquired in a business combination representing a favorable existing relationship with customers having a finite beneficial life.

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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
-Topic 350
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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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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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-Name Accounting Standards Codification
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Gross carrying amount before accumulated amortization as of the balance sheet date of the costs pertaining to the exclusive legal rights granted to the owner of the patent to exploit an invention or a process for a period of time specified by law. Such costs may have been expended to directly apply and receive patent rights, or to acquire such rights.

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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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Amount before accumulated amortization of finite-lived intangible assets classified as other.

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