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Goodwill and Intangible Assets - Summary of Changes in goodwill (Detail) $ in Millions	9 Months Ended
	Sep. 30, 2023 USD ($)
Goodwill [Roll Forward]
Beginning balance	$ 1,916.3
Acquisitions	17.2
Translation and other adjustments	0.1
Ending balance	$ 1,933.6

Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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