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ACQUISITIONS - Acquisition Summary (Details) - USD ($) $ in Millions	9 Months Ended	12 Months Ended
	Sep. 30, 2025	Dec. 31, 2024
Business Acquisition [Line Items]
Goodwill	$ 8,113.0	$ 7,907.3
Acquisition related liabilities and contingent consideration	$ 0.3
Business Acquisitions and Investment
Business Acquisition [Line Items]
Net tangible assets (liabilities) acquired		2.0
Identifiable intangible assets		21.7
Goodwill		33.6
Total aggregate purchase price		57.3
Acquisition related liabilities and contingent consideration		(3.2)
Net cash paid for acquisitions, including acquisition-related liabilities and contingent consideration		54.1
Business Acquisitions and Investment | Customer relationships
Business Acquisition [Line Items]
Identifiable intangible assets		18.3
Business Acquisitions and Investment | Trademarks
Business Acquisition [Line Items]
Identifiable intangible assets		1.8
Business Acquisitions and Investment | Other technology
Business Acquisition [Line Items]
Identifiable intangible assets		$ 1.6

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- Definition

The total cost of the entities acquired during the period, including the cash paid to shareholders of acquired entities, fair value of debt and equity securities issued to shareholders of acquired entities, the fair value of the liabilities assumed, and direct costs of the acquisition.

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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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