Stock-Based Compensation - Schedule Options to Purchase Common Stock (Details) $ / shares in Units, $ in Thousands	9 Months Ended	12 Months Ended
	Sep. 30, 2022 USD ($) $ / shares shares	Dec. 31, 2021 USD ($) $ / shares shares
Number of Shares
Number of shares, stock options outstanding, beginning balance (in shares) | shares	10,086,167
Granted (in shares) | shares	5,809,257
Exercised (in shares) | shares	(1,295,999)
Forfeited (in shares) | shares	(2,872,488)
Number of shares, stock options outstanding, ending balance (in shares) | shares	11,726,937	10,086,167
Stock options exercisable (in shares) | shares	2,982,799
Weighted-Average Exercise Price
Beginning balance, weighted average exercise price (in USD per share) | $ / shares	$ 2.59
Weighted average exercise price, granted (in USD per share) | $ / shares	3.90
Weighted average exercise price, exercised (in USD per share) | $ / shares	0.93
Weighted average exercise price, cancelled (in USD per share) | $ / shares	4.10
Ending balance, weighted average exercise price (in USD per share) | $ / shares	3.06	$ 2.59
Weighted average exercise price, options exercisable (in USD per share) | $ / shares	$ 2.56
Additional Disclosures
Weighted average remaining contractual life	8 years 6 months	8 years 9 months 18 days
Weighted average remaining contractual life, options exercisable	7 years 6 months
Aggregate intrinsic value | $	$ 2,448	$ 24,664
Aggregate intrinsic value, stock options exercisable | $	$ 1,089