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Fair Value Measurements - Schedule of Fair Value of Senior Convertible Notes (Details) - Senior Notes - USD ($) $ in Millions | Dec. 31, 2022 | Dec. 31, 2021
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Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Total fair value of outstanding senior convertible notes | $ 3,451.1 | $ 4,022.5
Convertible Notes due 2023 |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Total fair value of outstanding senior convertible notes | 2,136.2 | 2,589.6
Convertible Notes due 2025 |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Total fair value of outstanding senior convertible notes | $ 1,314.9 | $ 1,432.9

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