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Commitments and Contingencies - Additional Information (Details)
 1 Months Ended 12 Months Ended
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