Leases - Additional Information (Details) $ in Thousands		1 Months Ended		3 Months Ended		6 Months Ended		12 Months Ended
	Jul. 31, 2023 USD ($)	Dec. 31, 2023 USD ($) ft²	May 31, 2022 USD ($) ft²	Jun. 30, 2025 USD ($)	Jun. 30, 2024 USD ($)	Jun. 30, 2025 USD ($) Lease	Jun. 30, 2024 USD ($)	Dec. 31, 2024 USD ($)
Lessee Lease Description [Line Items]
Restricted cash				$ 1,993		$ 1,993		$ 1,993
Lessee, Operating Lease, Option to Extend			one additional five-year term
Impairment of right-of-use assets				0	$ 22,836	0	$ 22,836	$ 22,800
Operating lease cost				$ 1,292	$ 1,877	$ 2,601	$ 3,736
Number of leased properties marketed for sublease arrangements | Lease						3
Watertown Lease
Lessee Lease Description [Line Items]
Extended lease term	2027-04
Lessee, Operating Lease, Existence of Option to Extend [true false]						true
Waltham Lease
Lessee Lease Description [Line Items]
Number of leases | Lease						2
Office and Laboratory | Waltham Lease
Lessee Lease Description [Line Items]
Initial base rent			$ 2,200
Area of property | ft²			29,000
Percentage of annual rent increment			3.00%
Office and Laboratory | Waltham Sublease
Lessee Lease Description [Line Items]
Initial base rent		$ 1,800
Area of property | ft²		24,000
Percentage of annual rent increment		3.00%
Certificate of Deposits | Watertown Lease
Lessee Lease Description [Line Items]
Restricted cash	$ 300
Letter of Credit | Watertown Lease
Lessee Lease Description [Line Items]
Restricted cash	$ 300
Letter of Credit | Waltham Lease
Lessee Lease Description [Line Items]
Restricted cash			$ 1,100
Letter of Credit | Waltham Sublease
Lessee Lease Description [Line Items]
Restricted cash		$ 600