Net Loss per Share - Antidilutive securities (Details) - shares	9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021
Net Loss per Share
Antidilutive securities excluded from common stock (in shares)	5,515,912	21,691,266
Redeemable convertible preferred stock (as converted to common stock)
Net Loss per Share
Antidilutive securities excluded from common stock (in shares)	0	19,185,183
Unvested restricted common stock
Net Loss per Share
Antidilutive securities excluded from common stock (in shares)	445,445	0
Unvested shares from early exercises
Net Loss per Share
Antidilutive securities excluded from common stock (in shares)	67,737	136,520
Stock options to purchase common stock
Net Loss per Share
Antidilutive securities excluded from common stock (in shares)	5,002,730	2,369,563