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Debt - Summary of Conversion and Redemption Options and Details Related to Capped Call Confirmations (Details) - Convertible Debt | 9 Months Ended
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Sep. 30, 2020 $ / shares
1.375% convertible senior notes due 2026 |
Debt Instrument [Line Items] |
Debt instrument, conversion rate shares | 0.0229830
Conversion Price per Share (usd per share) | $ 43.51
Initial cap price (usd per share) | $ 80.5750
Cap Price Premium | 150.00%
2.75% convertible senior notes due 2025 |
Debt Instrument [Line Items] |
Debt instrument, conversion rate shares | 0.0148810
Conversion Price per Share (usd per share) | $ 67.20
0.75% convertible senior notes due 2024 |
Debt Instrument [Line Items] |
Debt instrument, conversion rate shares | 0.0229830
Conversion Price per Share (usd per share) | $ 43.51
Initial cap price (usd per share) | $ 72.5175
Cap Price Premium | 125.00%
1.50% convertible senior notes due 2023 |
Debt Instrument [Line Items] |
Debt instrument, conversion rate shares | 0.0127592
Conversion Price per Share (usd per share) | $ 78.37
Initial cap price (usd per share) | $ 105.45
Cap Price Premium | 85.00%
2.00% convertible senior notes due 2021 |
Debt Instrument [Line Items] |
Debt instrument, conversion rate shares | 0.0190985
Conversion Price per Share (usd per share) | $ 52.36
Initial cap price (usd per share) | $ 69.19
Cap Price Premium | 85.00%

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