Net Loss per Share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Potential dilutive securities that would have been anti-dilutive
Potential dilutive securities that would have been anti-dilutive due to net loss (in shares)			27,401,550	21,559,124
Numerator:
Net loss	$ (62,852)	$ (21,831)	$ (188,632)	$ (67,395)
Denominator:
Weighted-average shares of common stock outstanding, basic (in shares)	77,059,157	74,421,911	76,667,681	74,051,220
Weighted-average shares of common stock outstanding, diluted (in shares)	77,059,157	74,421,911	76,667,681	74,051,220
Net loss per share, basic (in dollars per share)	$ (0.82)	$ (0.29)	$ (2.46)	$ (0.91)
Net loss per share, diluted (in dollars per share)	$ (0.82)	$ (0.29)	$ (2.46)	$ (0.91)
Stock options
Potential dilutive securities that would have been anti-dilutive
Potential dilutive securities that would have been anti-dilutive due to net loss (in shares)			5,964,973	3,634,078
Restricted stock units
Potential dilutive securities that would have been anti-dilutive
Potential dilutive securities that would have been anti-dilutive due to net loss (in shares)			5,477,279	2,901,519
Performance restricted stock units
Potential dilutive securities that would have been anti-dilutive
Potential dilutive securities that would have been anti-dilutive due to net loss (in shares)			2,515,924	1,580,153
Shares related to convertible senior notes
Potential dilutive securities that would have been anti-dilutive
Potential dilutive securities that would have been anti-dilutive due to net loss (in shares)			13,443,374	13,443,374