Net Loss Per Share Attributable to Common Stockholders - Schedule of Basic and Diluted Net Loss Per Share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended				6 Months Ended
	Jun. 30, 2024	Mar. 31, 2024	Jun. 30, 2023	Mar. 31, 2023	Jun. 30, 2024	Jun. 30, 2023
Numerator:
Net loss	$ (85,672)	$ (34,973)	$ (26,039)	$ (176,450)	$ (120,645)	$ (202,489)
Denominator:
Weighted average common shares outstanding (in shares)	99,215,994		65,652,851		98,653,080	43,461,494
Less: Weighted-average common shares subject to repurchase (in shares)	(54,284)		(442,734)		(115,395)	(486,854)
Weighted-average common shares outstanding, basic (in shares)	99,161,710		65,210,117		98,537,685	42,974,640
Weighted-average common shares outstanding, diluted (in shares)	99,161,710		65,210,117		98,537,685	42,974,640
Net loss per share attributable to common stockholder, basic (in shares)	$ (0.86)		$ (0.40)		$ (1.22)	$ (4.71)
Net loss per share attributable to common stockholder, diluted (in shares)	$ (0.86)		$ (0.40)		$ (1.22)	$ (4.71)