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Commitments and Contingencies - Additional Information (Details)
$ in Thousands
 1 Months Ended 3 Months Ended 9 Months Ended
Dec. 31, 2023
USD ($)
ft²
Sep. 30, 2021
ft²
Jun. 30, 2021
ft²
Dec. 31, 2018
USD ($)
ft²
Option
Aug. 31, 2018
USD ($)
ft²
Sep. 30, 2024
USD ($)
Sep. 30, 2023
USD ($)
Sep. 30, 2024
USD ($)
Sep. 30, 2023
USD ($)
Apr. 01, 2022
USD ($)
Dec. 31, 2021
USD ($)
Commitments And Contingencies [Line Items]                      
Area of space subject to operating lease | ft²       2,485 23,000            
Operating lease term       3 years 3 years            
Operating lease cost per year       $ 200 $ 900            
Annual base rent increase percentage for operating lease       2.50% 3.00%            
Operating lease commencement date       May 01, 2019 Dec. 10, 2018            
Operating lease right-of-use assets $ 6,611         $ 4,928   $ 4,928      
Operating lease liabilities           5,306   5,306      
Number of options to renewal operating lease term | Option       1              
Operating lease, renewal term       2 years              
Southampton Agreement                      
Commitments And Contingencies [Line Items]                      
Expenses related to reimbursable patent costs           20 $ 20 80 $ 160    
Payment for license and collaboration agreement               700      
ASU 2016-02                      
Commitments And Contingencies [Line Items]                      
Operating leases expense           $ 700 $ 600 $ 2,100 $ 1,800    
Lease Commencement on December 15, 2021                      
Commitments And Contingencies [Line Items]                      
Area of space subject to operating lease | ft²   23,000                  
Operating lease term   3 years                  
Operating lease commencement date   Dec. 15, 2021                  
Operating lease expiration date   Dec. 31, 2024                  
Operating lease right-of-use assets                     $ 3,500
Operating lease liabilities                     3,500
Lease Commencement on April 2022                      
Commitments And Contingencies [Line Items]                      
Area of space subject to operating lease | ft²   15,000                  
Operating lease commencement date   Apr. 01, 2022                  
Operating lease expiration date   Dec. 31, 2024                  
Operating lease right-of-use assets                   $ 1,800  
Operating lease liabilities                   $ 1,800  
Lease Extension End Date April 30, 2025                      
Commitments And Contingencies [Line Items]                      
Area of space subject to operating lease | ft²     2,485                
Operating lease term     3 years                
Operating lease commencement date     May 01, 2022                
Operating lease expiration date     Apr. 30, 2025                
Operating lease right-of-use assets                     700
Operating lease liabilities                     700
Operating lease, renewal term     2 years                
Area of additional space subject to operating lease | ft²     2,357                
Additional operating lease commencement date     Jul. 06, 2021                
Additional operating lease expiration date     Apr. 30, 2025                
Additional operating lease, right-of-use asset                     800
Additional operating lease, liabilities                     $ 800
Operating lease, option to extend     The amended lease provides the Company with the option to extend the term of the lease for an additional two years.                
Operating lease, existence of option to extend [true false]     true                
Lease Commencement on January 1, 2025                      
Commitments And Contingencies [Line Items]                      
Area of space subject to operating lease | ft² 38,000                    
Operating lease term 2 years                    
Operating lease commencement date Jan. 01, 2025                    
Operating lease expiration date Dec. 31, 2026                    
Operating lease right-of-use assets $ 4,100