Net Loss Per Share Attributable to Common Stockholders - Summary of Calculation of Basic and Diluted Net Loss Per Share Attributable to Common Stockholders (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Numerator:
Net loss attributable to common stockholders, basic	$ (81,212)	$ (111,903)
Net loss attributable to common stockholders, diluted	$ (81,212)	$ (111,903)
Denominator:
Weighted-average shares used in computing net loss per share attributable to common stockholders, basic (in shares)	226,405,466	222,526,454
Weighted-average shares used in computing net loss per share attributable to common stockholders, diluted (in shares)	226,405,466	222,526,454
Net loss per share:
Net loss per share attributable to common stockholders, basic (in dollars per share)	$ (0.36)	$ (0.50)
Net loss per share attributable to common stockholders, diluted (in dollars per share)	$ (0.36)	$ (0.50)