ACQUISITIONS - Estimated Fair Values Of The Assets Acquired And Liabilities Assumed (Details) - USD ($) $ in Millions	9 Months Ended
Sep. 30, 2021	Dec. 31, 2020
Business Acquisition [Line Items]
Goodwill	$ 1,456.7	$ 1,388.8
Series of Individually Immaterial Business Acquisitions
Business Acquisition [Line Items]
Accounts receivable	20.7
Inventory	17.4
Property, plant and equipment	15.3
Goodwill	76.9
Other current and long-term assets	5.5
Current liabilities	(40.8)
Deferred income taxes	(10.9)
Other long-term liabilities	(4.7)
Fair value of net identifiable assets	152.8
Less: Additional consideration payable	0.5
Net cash consideration	152.3
Customer relationships (1 to 15-year life) \| Series of Individually Immaterial Business Acquisitions
Business Acquisition [Line Items]
Other intangible assets:	$ 45.5
Customer relationships (1 to 15-year life) \| Series of Individually Immaterial Business Acquisitions \| Minimum
Business Acquisition [Line Items]
Useful life	1 year
Customer relationships (1 to 15-year life) \| Series of Individually Immaterial Business Acquisitions \| Maximum
Business Acquisition [Line Items]
Useful life	15 years
Technology (1 to 10-year life) \| Series of Individually Immaterial Business Acquisitions
Business Acquisition [Line Items]
Other intangible assets:	$ 18.6
Technology (1 to 10-year life) \| Series of Individually Immaterial Business Acquisitions \| Minimum
Business Acquisition [Line Items]
Useful life	1 year
Technology (1 to 10-year life) \| Series of Individually Immaterial Business Acquisitions \| Maximum
Business Acquisition [Line Items]
Useful life	10 years
Trademarks and trade names (20-year life) \| Series of Individually Immaterial Business Acquisitions
Business Acquisition [Line Items]
Other intangible assets:	$ 6.6
Useful life	20 years
Noncompete agreements (1 to 5-year life) \| Series of Individually Immaterial Business Acquisitions
Business Acquisition [Line Items]
Other intangible assets:	$ 2.7
Noncompete agreements (1 to 5-year life) \| Series of Individually Immaterial Business Acquisitions \| Minimum
Business Acquisition [Line Items]
Useful life	1 year
Noncompete agreements (1 to 5-year life) \| Series of Individually Immaterial Business Acquisitions \| Maximum
Business Acquisition [Line Items]
Useful life	5 years

Business Combination, Consideration Transferred, Additional Consideration

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Amount of consideration transferred, consisting of acquisition-date fair value of assets transferred by the acquirer, liabilities incurred by the acquirer, and equity interest issued by the acquirer.

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