Goodwill and Intangible Assets, Net - Acquisition-Related Intangible Assets (Detail) - USD ($) $ in Millions	Mar. 31, 2022	Dec. 31, 2021
Finite Lived Intangible Assets [Line Items]
Gross Carrying Value	$ 1,498.3	$ 1,502.7
Accumulated Amortization	(663.5)	(602.2)
Net Book Value	834.8	900.5
Developed Technology [Member]
Finite Lived Intangible Assets [Line Items]
Gross Carrying Value	1,202.7	1,206.2
Accumulated Amortization	(575.9)	(525.3)
Net Book Value	626.8	680.9
Trademarks, Branding and Domain Names [Member]
Finite Lived Intangible Assets [Line Items]
Gross Carrying Value	250.9	251.8
Accumulated Amortization	(71.4)	(63.5)
Net Book Value	179.5	188.3
Developer and Customer Relationships [Member]
Finite Lived Intangible Assets [Line Items]
Gross Carrying Value	44.7	44.7
Accumulated Amortization	(16.2)	(13.4)
Net Book Value	$ 28.5	$ 31.3