Net (Loss) Income Per Share - Schedule of Antidilutive Shares (Details) - $ / shares	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 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)	1,811,000	0	0	3,069,000
Restricted Stock
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive securities (in shares)	201,000	0	0	202,000
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)	5,538,000	0	5,538,000	3,113,000
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)	5,215,000	0	5,101,000	0