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Investments - Narrative (Details) - USD ($) $ in Millions	1 Months Ended	12 Months Ended
Investments - Narrative (Details) - USD ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019	May 31, 2019
Schedule of Equity Method Investments [Line Items]
Equity investment without readily determinable fair value		$ 5.1	$ 5.1
Gain (loss) on investments, net		$ (3.0)	$ 0.7	$ 99.5
Realized gain upon receipt of proceeds related to sale				$ 96.9
CrowdStrike
Schedule of Equity Method Investments [Line Items]
Equity investment without readily determinable fair value					$ 10.0
Proceeds from sale of equity investment	$ 106.9