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Leases - Additional Information (Details) $ in Thousands |  |  | 1 Months Ended | 12 Months Ended
--- | --- | --- | --- | ---
Dec. 21, 2023 USD ($) | Jul. 31, 2023 USD ($) | Dec. 31, 2023 USD ($) ft² | May 31, 2022 USD ($) ft² | Dec. 31, 2024 USD ($) Lease | Dec. 31, 2023 USD ($) ft²
Lessee Lease Description [Line Items] |  |  |  |  |  |
Initial base rent |  |  |  |  | $ 6,400 | $ 2,000
Operating lease right-of-use assets |  |  | $ 33,233 |  | 19,924 | 33,233
Restricted cash |  |  | 1,392 |  | 1,993 | 1,392
Lessee, Operating Lease, Option to Extend |  |  |  | one additional five-year term |  |
Operating lease cost |  |  |  |  | $ 6,410 | $ 1,966
Watertown Lease |  |  |  |  |  |
Lessee Lease Description [Line Items] |  |  |  |  |  |
Operating lease right-of-use assets |  | $ 4,900 |  |  |  |
Extended lease term |  | 2027-04 |  |  |  |
Lessee, Operating Lease, Existence of Option to Extend [true false] |  |  |  |  | true |
Waltham Lease |  |  |  |  |  |
Lessee Lease Description [Line Items] |  |  |  |  |  |
Operating lease right-of-use assets | $ 27,600 |  |  |  |  |
Payments for tenant improvements | 8,300 |  |  |  |  |
Number of leases | Lease |  |  |  |  | 2 |
Office and Laboratory | Waltham Lease |  |  |  |  |  |
Lessee Lease Description [Line Items] |  |  |  |  |  |
Initial base rent |  |  |  | $ 2,200 |  |
Percentage of annual rent increment |  |  |  | 3.00% |  |
Area of property | ft² |  |  |  | 29,000 |  |
Payments for tenant improvements | 5,900 |  |  |  |  |
Office and Laboratory | Waltham Sublease |  |  |  |  |  |
Lessee Lease Description [Line Items] |  |  |  |  |  |
Initial base rent |  |  | $ 1,800 |  |  |
Percentage of annual rent increment |  |  | 3.00% |  |  | 3.00%
Area of property | ft² |  |  | 24,000 |  |  | 24,000
Certificate of Deposits | Watertown Lease |  |  |  |  |  |
Lessee Lease Description [Line Items] |  |  |  |  |  |
Restricted cash |  | $ 300 |  |  |  |
Letter of Credit | Watertown Lease |  |  |  |  |  |
Lessee Lease Description [Line Items] |  |  |  |  |  |
Secured debt obligations |  | $ 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 |  |  | $ 600

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