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ACQUISITIONS (Details) - USD ($) $ / shares in Units, $ in Millions					12 Months Ended
	Dec. 05, 2024	Jul. 01, 2024	Jun. 03, 2024	Apr. 01, 2024	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Business Acquisition [Line Items]
Preferred stock, par value					$ 0.01
Goodwill					$ 3,280.1	$ 3,262.3	$ 3,240.9
Disposal Date				Apr. 01, 2024
Base purchase price for divestiture of business.				$ 350.0
Proceeds from Divestiture of Businesses, Net of Cash Divested					$ 354.9	$ 0.0	$ 0.0
Ascent
Business Acquisition [Line Items]
Business Acquisition, Effective Date of Acquisition	Dec. 05, 2024
Business Acquisition, Description of Acquired Entity					Headquartered in St. Louis, Missouri, Ascent is a provider of data center facility management services with over 300 employees in the U.S. and Canada.
Business Combination, Reason for Business Combination					Ascent’s expertise in engineering and design-build consultation services, in addition to daily site operations, extends the Company’s suite of capabilities and solutions that serve the entire lifecycle of the data center.
Payment to Acquire Business, Fair Value of Cash Consideration	$ 181.7
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill	58.0
Business Combination, Consideration Transferred	186.8
Goodwill	$ 118.2
Ascent | Customer-Related Intangible Assets
Business Acquisition [Line Items]
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life					15 years
Independent Electric Supply
Business Acquisition [Line Items]
Business Acquisition, Effective Date of Acquisition		Jul. 01, 2024
Business Acquisition, Description of Acquired Entity					a full-line electrical distributor headquartered in Ontario, Canada.
Payment to Acquire Business, Fair Value of Cash Consideration		$ 11.6
Business Combination, Contingent Consideration Arrangements, Range of Outcomes, Value, High		2.9
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill		5.9
Business Combination, Consideration Transferred		$ 13.2
entroCIM
Business Acquisition [Line Items]
Business Acquisition, Effective Date of Acquisition			Jun. 03, 2024
Business Acquisition, Description of Acquired Entity					entroCIM is an innovator in data center and building intelligence software.
Payment to Acquire Business, Fair Value of Cash Consideration			$ 30.1
Business Combination, Contingent Consideration Arrangements, Range of Outcomes, Value, High			8.0
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill			8.0
Business Combination, Consideration Transferred			36.5
Business Combination, Contingent Consideration, Liability					$ 6.4
Goodwill			$ 29.0

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