Net Loss Per Share - Schedule of Basic and Diluted Net Loss per Share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Numerator:
Net loss attributable to common stockholders, basic	$ (21,177)	$ (31,575)	$ (67,640)	$ (95,679)
Net loss attributable to common stockholders, diluted	$ (21,177)	$ (31,575)	$ (67,640)	$ (95,679)
Denominator:
Weighted-average shares used in computing net loss per share attributable to common stockholders, basic (in shares)	7,900,246	7,605,191	7,831,158	7,550,254
Weighted-average shares used in computing net loss per share attributable to common stockholders, diluted (in shares)	7,900,246	7,605,191	7,831,158	7,550,254
Net loss per share attributable to common stockholders, basic (in dollars per share)	$ (2.68)	$ (4.15)	$ (8.64)	$ (12.67)
Net loss per share attributable to common stockholders, diluted (in dollars per share)	$ (2.68)	$ (4.15)	$ (8.64)	$ (12.67)