Net Loss Per Share Attributable To Common Stockholders - Computation of EPS (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Earnings Per Share [Abstract]
Net loss attributable to common stockholders, basic	$ (16,616)	$ (6,117)	$ (33,045)	$ (11,610)
Net loss attributable to common stockholders, diluted	$ (16,616)	$ (6,117)	$ (33,045)	$ (11,610)
Denominator:
Weighted-average common shares used in computing net loss per share attributable to common stockholders, basic (in shares)	60,841,657	9,718,393	60,367,433	9,320,520
Weighted-average common shares used in computing net loss per share attributable to common stockholders, diluted (in shares)	60,841,657	9,718,393	60,367,433	9,320,520
Net loss per share available to common shareholders, basic (in usd per share)	$ (0.27)	$ (0.63)	$ (0.55)	$ (1.25)
Net loss per share available to common shareholders, diluted (in usd per share)	$ (0.27)	$ (0.63)	$ (0.55)	$ (1.25)