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Commitments and Contingencies - Additional Information (Details) | 1 Months Ended | 12 Months Ended |  |
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Apr. 30, 2021 | Jan. 31, 2021 USD ($) ft² | Aug. 31, 2018 ft² Lease $ / ft² | Dec. 31, 2021 USD ($) $ / ft² | Dec. 31, 2020 USD ($) | Dec. 31, 2018 USD ($) | Jun. 30, 2017 ft² $ / ft² | Jun. 30, 2015 ft² $ / ft²
Commitments And Contingencies Disclosure [Line Items] |  |  |  |  |  |  |  |
Number of noncancelable operating leases | Lease |  |  | 2 |  |  |  |  |
Operating lease, payments |  |  |  | $ 717,000 |  |  |  |
Rent expense |  |  |  | 1,691,000 | $ 561,000 |  |  |
Purchase commitments |  |  |  | $ 0 |  |  |  |
Cranbury, New Jersey |  |  |  |  |  |  |  |
Commitments And Contingencies Disclosure [Line Items] |  |  |  |  |  |  |  |
Area of operating lease property | ft² |  |  |  |  |  |  | 6,000 | 13,000
Initial base rent per square foot | $ / ft² |  |  |  |  |  |  | 22.00 | 20.00
Operating lease expiration period |  |  |  | 2022-06 |  |  |  |
Operating lease maintenance expense per square foot | $ / ft² |  |  |  | 3.00 |  |  |  |
Operating lease, description |  |  |  | Both leases include a common area maintenance expense for $3.00 per square foot with an increase of 3% on the first month of each calendar year during the lease term and a management fee of 3% of the base rent. |  |  |  |
Management fee of base rent percentage |  |  |  | 3.00% |  |  |  |
South Brunswick, New Jersey |  |  |  |  |  |  |  |
Commitments And Contingencies Disclosure [Line Items] |  |  |  |  |  |  |  |
Area of operating lease property | ft² |  |  | 6,000 |  |  |  |  |
Initial base rent per square foot | $ / ft² |  |  | 15.50 |  |  |  |  |
Operating lease expiration period |  |  | 2022-07 |  |  |  |  |
Management fee of base rent percentage |  |  | 3.00% |  |  |  |  |
Operating lease renewal term description |  |  | with an option to renew on a month-to-month basis, with an increase in base rent as per the lease, for up to an additional year |  |  |  |  |
Lexington, Massachusetts |  |  |  |  |  |  |  |
Commitments And Contingencies Disclosure [Line Items] |  |  |  |  |  |  |  |
Initial base rent per square foot | $ / ft² |  |  | 28.50 |  |  |  |  |
Operating lease expiration period |  |  | 2023-08 |  |  |  |  |
Operating lease, renewal term |  |  | 3 years |  |  |  |  |
Initial base rent increased per square foot | $ / ft² |  |  | 1.00 |  |  |  |  |
Allowance on behalf of lessor for construction of office space. |  |  |  |  |  | $ 165,000 |  |
Remaining rent incentives |  |  |  | $ 64,000 |  |  |  |
Sublease expiration period |  |  |  | 2023-08 |  |  |  |
Princeton, New Jersey |  |  |  |  |  |  |  |
Commitments And Contingencies Disclosure [Line Items] |  |  |  |  |  |  |  |
Operating lease, description |  |  |  | That lease term extends through 2032, has a five-year extension option, and is intended to replace our two existing facilities and the space is expected to become the Company’s future headquarters |  |  |  |
Lease area of square feet | ft² |  | 50,581 |  |  |  |  |  |
Operating Leases, extended year |  | 2032 |  |  |  |  |  |
Operating leases, extension period |  | 5 years |  |  |  |  |  |
Operating lease, payments |  | $ 19,600,000 |  |  |  |  |  |
Operating leases extended month and year |  | 2032-05 |  |  |  |  |  |
Tenant improvement allowance |  | $ 4,100,000 |  |  |  |  |  |
Sublease with tenant office space starting period | 2021-04 |  |  |  |  |  |  |
Sublease with tenant office space ending period | 2021-07 |  |  |  |  |  |  |
Sublease income |  |  |  | $ 116,000 |  |  |  |

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