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Commitments and Contingencies - Narrative (Details)
$ in Millions
 1 Months Ended 9 Months Ended
Feb. 28, 2019
ft²
renewal
Sep. 30, 2023
USD ($)
Dec. 31, 2022
USD ($)
Dec. 31, 2021
ft²
Jul. 31, 2020
USD ($)
Oct. 31, 2018
USD ($)
ft²
Aug. 31, 2018
ft²
Operating Leased Assets [Line Items]              
Area of office and laboratory (in square feet) | ft²           14,943 68,000
Operating lease term           124 months 127 months
Operating lease, option to extend term (in years)           7 years 7 years
Tenant improvements   $ 5.0          
Additional area of office and laboratory (in square feet) | ft²       47,566      
Allowance for tenant improvements           $ 0.8  
Letter of credit   6.0 $ 6.0        
Cash paid for amounts included in measurement of lease liabilities   $ 9.0          
Weighted average discount rate (as a percent)   6.89%          
Weighted average remaining lease term (in years)   9 years 3 months 7 days          
Agreement term         20 years    
Termination payment         $ 4.3    
Non-cancellable purchase commitments   $ 4.0          
Lease One, Amended              
Operating Leased Assets [Line Items]              
Operating lease term       120 months      
Operating lease, option to extend term (in years)       8 years      
Lease Two              
Operating Leased Assets [Line Items]              
Operating lease, option to extend term (in years)       8 years      
Letter of Credit              
Operating Leased Assets [Line Items]              
Letter of credit   4.3 $ 4.3        
Newark              
Operating Leased Assets [Line Items]              
Operating lease term 188 months            
Operating lease, option to extend term (in years) 10 years            
Area of operating lease (in square feet) | ft² 118,000            
Number of options to extend lease | renewal 2            
Tenant improvement allowance utilized to date   $ 3.0