Net Loss Per Share Attributable to Common Shareholders - Schedule of Computation of Basic and Diluted Net Loss Per Common Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Numerator:
Net loss attributable to common shareholders	$ (135,618)	$ (55,320)	$ (51,951)
Denominator:
Weighted-average common shares outstanding-basic	86,263	80,985	73,345
Dilutive effect of share equivalents resulting from stock options, RSUs, PSUs, ESPP shares, and convertible senior notes (if converted)	0	0	0
Weighted-average common shares outstanding-diluted	86,263	80,985	73,345
Net loss per common share, basic and diluted	$ (1.57)	$ (0.68)	$ (0.71)