Net Loss per Common Share - Schedule of Computation of Basic and Diluted Net Loss Per Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Earnings Per Share [Abstract]
Net loss	$ (31,684)	$ (37,215)
Weighted-average shares outstanding	58,428	42,319
Less: weighted-average unvested restricted shares and shares subject to repurchase	(88)	(183)
Weighted-average shares used in computing net loss per share attributable to common stockholders, basic and diluted	58,340	42,136
Net loss per share attributable to common stockholders, basic and diluted	$ (0.54)	$ (0.88)