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Strategic Investments - Additional Information (Details) - Privately Held Securities - USD ($)
3 Months Ended 9 Months Ended
Sep. 30, 2022
Sep. 30, 2021
Sep. 30, 2022
Sep. 30, 2021
Dec. 31, 2021
Investment Holdings [Line Items]          
Carrying value of investment in privately-held companies $ 226,700,000   $ 226,700,000   $ 262,700,000
Unrealized gains (loss) on investments   $ 60,600,000 19,700,000 $ 136,000,000.0  
Realized gains on privately held investments $ 0   $ 45,900,000 $ 27,800,000