Net Income (Loss) Per Share - Schedule of Antidilutive Shares (Details) - $ / shares	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020	Jan. 11, 2021
Capped Call Transactions
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Offering price per share (in dollars per share)					$ 85.75
Stock options
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive securities (in shares)	0	2,871,000	0	2,944,000
Restricted Stock
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive securities (in shares)	0	281,000	0	237,000
Convertible Debt Securities | 1.25% Convertible Senior Notes due 2025
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive securities (in shares)	0	3,773,000	0	1,887,000
Convertible Debt Securities | 0.25% Convertible Senior Notes due 2028
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive securities (in shares)	0	0	0	0