Goodwill and Intangible Assets - Schedule of Intangible Asset (Detail) - USD ($) $ in Millions	Sep. 30, 2024	Dec. 31, 2023
Schedule of Finite and Indefinite Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 793.6	$ 706.9
Accumulated Amortization	(569.8)	(481.2)
Net	$ 223.8	$ 225.7
Weighted Average Remaining Amortization Period	5 years 2 months 12 days	3 years 2 months 12 days
Gross Carrying Amount	$ 800.0	$ 713.4
Accumulated Amortization	(571.7)	(483.2)
Net	228.3	230.2
Trade Name [Member]
Schedule of Finite and Indefinite Lived Intangible Assets [Line Items]
Gross Carrying Amount	177.2	177.1
Accumulated Amortization	(106.6)	(39.9)
Net	$ 70.6	$ 137.2
Weighted Average Remaining Amortization Period	9 months 18 days	1 year 7 months 6 days
Gross Carrying Amount	$ 6.4	$ 6.5
Accumulated Amortization	(1.9)	(2.0)
Net	4.5	4.5
Customer Lists and Relationships [Member]
Schedule of Finite and Indefinite Lived Intangible Assets [Line Items]
Gross Carrying Amount	302.9	302.3
Accumulated Amortization	(244.3)	(239.5)
Net	$ 58.6	$ 62.8
Weighted Average Remaining Amortization Period	6 years 3 months 18 days	6 years 7 months 6 days
Technology [Member]
Schedule of Finite and Indefinite Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 313.5	$ 227.5
Accumulated Amortization	(218.9)	(201.8)
Net	$ 94.6	$ 25.7
Weighted Average Remaining Amortization Period	8 years	2 years 3 months 18 days