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CONSOLIDATED STATEMENTS OF OPERATIONS (Parenthetical) - USD ($) $ in Millions			12 Months Ended
		Mar. 15, 2023	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Allocated share-based compensation expense (reversal)			$ 346.5	$ 338.0	$ 330.7
Income tax benefit, release of deferred tax asset valuation allowance				420.2	420.2
Corporate Headquarters Lease
Gain on partial operating lease termination				158.8
Cost of revenue
Allocated share-based compensation expense (reversal)			22.9	23.3	24.7
Research and development
Allocated share-based compensation expense (reversal)	[1]		247.6	237.6	232.3
Research and development | President
Allocated share-based compensation expense (reversal)		$ (6.7)			4.4
Sales and marketing
Allocated share-based compensation expense (reversal)			23.7	22.0	22.4
General and administrative
Allocated share-based compensation expense (reversal)			$ 52.3	$ 55.1	$ 51.3
[1] On March 15, 2023, the former President resigned, resulting in the reversal of $6.7 million in stock-based compensation expense. Of the total amount reversed, $4.4 million related to expense recognized prior to January 1, 2023.

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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 718
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SAB Topic 14.F)
-Publisher FASB
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Reference 2: http://www.xbrl.org/2003/role/disclosureRef
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