Stock-based Compensation - Schedule of Stock Option Activity (Details) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023
Number of Stock Options
Beginning Balance (in shares)	55,596,831
Granted (in shares)	3,665,500
Exercised (in shares)	(1,245,836)
Canceled or forfeited (in shares)	(13,229,412)
Ending Balance (in shares)	44,787,083	55,596,831
Options Exercisable (in shares)	30,273,806
Weighted-Average Exercise Price per Share
Beginning Balance (in dollars per share)	$ 4.75
Granted (in dollars per share)	1.90
Exercised (in dollars per share)	0.12
Cancelled or forfeited (in dollars per share)	6.18
Ending Balance (in dollars per share)	2.49	$ 4.75
Options Exercisable (in dollars per share)	$ 2.74
Weighted-Average Remaining Contractual Life (years)
Options Outstanding	6 years 7 months 13 days	6 years 10 months 20 days
Options Exercisable	5 years 10 months 17 days
Aggregate Intrinsic Value
Options Outstanding	$ 1,479	$ 7,368
Options Exercisable	$ 1,479