Debt - Summary of Conversion and Redemption Options and Details Related to Capped Call Confirmations (Details) - Convertible Debt	12 Months Ended
	Dec. 31, 2020 $ / shares
1.375% convertible senior notes due 2026
Debt Instrument [Line Items]
Conversion Rate	0.0229830
Conversion Price (usd per share)	$ 43.51
2.75% convertible senior notes due 2025
Debt Instrument [Line Items]
Conversion Rate	0.0148810
Conversion Price (usd per share)	$ 67.20
0.75% convertible senior notes due 2024
Debt Instrument [Line Items]
Conversion Rate	0.0229830
Conversion Price (usd per share)	$ 43.51
1.50% convertible senior notes due 2023
Debt Instrument [Line Items]
Conversion Rate	0.0127592
Conversion Price (usd per share)	$ 78.37