Net (Loss) Income Per Share - Computation of Basic and Diluted Net Income Per Share (Details) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Numerator:
Net (loss) income	$ (291,754)	$ (287,100)	$ 132,244
Denominator:
Weighted-average common shares outstanding - Basic	77,630,020	75,449,632	71,411,705
Weighted-average common shares outstanding - Diluted	77,630,020	75,449,632	83,491,898
Basic net (loss) income per share	$ (3.76)	$ (3.81)	$ 1.85
Diluted net (loss) income per share	$ (3.76)	$ (3.81)	$ 1.62
Numerator:
Add interest expense on 2026 Convertible Notes, net of tax			$ 3,307
Numerator for diluted net (loss) income per share	$ (291,754)	$ (287,100)	$ 135,551
Add effect of potential dilutive securities:
Stock options, including shares subject to ESPP			3,455,646
Restricted stock units			167,597
Shares issuable upon conversion of convertible notes			8,456,950
Denominator for diluted net (loss) income per share	77,630,020	75,449,632	83,491,898