Net Loss Per Share - Summary of Basic and Diluted Net Loss Per Share Attributable to Common Shareholders/Stockholders (Detail) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Earnings Per Share [Abstract]
Net loss and comprehensive loss	$ (27,747)	$ (16,101)
Net loss attributable to redeemable convertible noncontrolling interests	0	(919)
Net loss attributable to common stockholders/members	$ (27,747)	$ (15,182)
Net loss per share, basic and diluted	$ (0.48)	$ (2.58)
Weighted-average number of common shares used in computing net loss per share, basic and diluted	58,382,444	5,892,145