Net Loss Per Share - Schedule of Computation of Basic and Diluted Net Loss Per Share (Details) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Earnings Per Share [Abstract]
Net loss (in thousands)	$ (463,927)	$ (402,266)	$ (223,485)
Weighted-average shares outstanding used in computing net loss per share, basic (in shares)	121,997,348	97,157,690	64,877,988
Weighted-average shares outstanding used in computing net loss per share, diluted (in shares)	121,997,348	97,157,690	64,877,988
Net loss per share, basic (in dollars per share)	$ (3.80)	$ (4.14)	$ (3.44)
Net loss per share, diluted (in dollars per share)	$ (3.80)	$ (4.14)	$ (3.44)