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Commitments and Contingencies (Details) - USD ($) $ in Thousands	1 Months Ended		3 Months Ended	9 Months Ended
	May 31, 2024	Nov. 30, 2019	Sep. 30, 2024	Sep. 30, 2024
Lease Cost:
Operating lease cost			$ 1,714	$ 5,290
Variable lease cost			363	1,086
Total lease cost			$ 2,077	6,376
Operating cash flows used for operating leases				$ 6,000
Weighted average remaining lease term			2 years 10 months 24 days	2 years 10 months 24 days
Weighted average incremental borrowing rate			13.10%	13.10%
301 Binney St, Cambridge MA
Leased assets
Option to extend the term	true	true
Renewal term	2 years	2 years
Base rent	$ 6,200	$ 6,900
Annual upward adjustment (as a percent)	3.00%	3.50%
Incentive to lease		$ 14,100
Letter of credit		$ 2,300
301 Binney St, Cambridge MA | First extension
Leased assets
Renewal term	5 years

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