v3.26.3
Leases - Additional Information (Details)
 3 Months Ended 5 Months Ended 9 Months Ended
Jul. 31, 2026
USD ($)
ft²
$ / shares
shares
Sep. 30, 2026
USD ($)
ft²
shares
Sep. 30, 2025
USD ($)
Sep. 30, 2026
USD ($)
ft²
shares
Sep. 30, 2026
USD ($)
ft²
shares
Sep. 30, 2025
USD ($)
Jan. 04, 2027
USD ($)
Aug. 01, 2026
ft²
Jun. 30, 2026
ft²
Dec. 31, 2025
USD ($)
shares
Lessee, Lease, Description [Line Items]                    
Existence of option to extend         true          
Option to extend, description         Company's leases includes an option to renew, exercisable at the Company’s sole discretion, with renewal terms that can extend the lease for up to ten years          
Common stock, shares issued | shares   10,049,501   10,049,501 10,049,501         9,556,466
Lease liability and right-of-use asset   $ 35,772,000   $ 35,772,000 $ 35,772,000         $ 82,966,000
Loss on termination of lease         (469,000)          
Lease liability right-of-use asset   27,662,000   $ 27,662,000 27,662,000         $ 72,483,000
Total consideration         50,763,000          
Leases Payments   $ 2,584,000 $ 4,837,000   $ 21,731,000 $ 14,552,000        
Weighted average remaining lease term   8 years 5 months 26 days 6 years 3 months 14 days 8 years 5 months 26 days 8 years 5 months 26 days 6 years 3 months 14 days        
Weighted average incremental borrowing rate   9.50% 13.00% 9.50% 9.50% 13.00%        
Stock Issuance Agreement [Member]                    
Lessee, Lease, Description [Line Items]                    
Common stock, shares issued | shares 103,520                  
Shares Issued, Price Per Share | $ / shares $ 4.83                  
Letter of Credit [Member]                    
Lessee, Lease, Description [Line Items]                    
Letters of credit   $ 6,266,000   $ 6,266,000 $ 6,266,000          
Lease Amendment [Member]                    
Lessee, Lease, Description [Line Items]                    
Area of land | ft²   82,714   82,714 82,714          
Additional termination payment       $ 3,234,000            
Rental payments       1,967,000            
Base rent       79.7            
Termination fee payable   $ 4,500,000   4,500,000 $ 4,500,000          
Deferred payment         5,201,000          
Lease liability right-of-use asset   11,538,000   11,538,000 11,538,000          
Leases Payments         36,763,000          
Lease Renewal [Member]                    
Lessee, Lease, Description [Line Items]                    
Rentable area | ft²               47,341    
Lease liability right-of-use asset   $ 18,884,000   $ 18,884,000 $ 18,884,000          
Lease Termination Agreement [Member]                    
Lessee, Lease, Description [Line Items]                    
Rentable area | ft²               21,295    
Equity issuance of shares of company's common stock $ 500,000                  
Lease Termination Agreement [Member] | Letter of Credit [Member]                    
Lessee, Lease, Description [Line Items]                    
Amount of increase to letter of credit 2,238,000                  
Total letter of credit $ 3,638,000                  
Forecast [Member] | Lease Termination Agreement [Member]                    
Lessee, Lease, Description [Line Items]                    
Termination payment             $ 3,850,000      
Cambridge Massachusetts [Member]                    
Lessee, Lease, Description [Line Items]                    
Area of land | ft²                 82,714  
Cambridge Massachusetts [Member] | Lease Amendment [Member]                    
Lessee, Lease, Description [Line Items]                    
Area of land | ft²   36,882   36,882 36,882          
Impairment loss of leasehold improvements         $ 233,000          
Impairment loss         5,574,000          
Impairment loss         5,807,000          
Cambridge Massachusetts [Member] | Lease Renewal [Member]                    
Lessee, Lease, Description [Line Items]                    
Impairment loss of leasehold improvements   $ 2,051,000     2,051,000          
Impairment loss   3,654,000     3,654,000          
Impairment loss   $ 5,705,000     $ 5,705,000          
Cambridge Massachusetts [Member] | Lease Third Amendment [Member]                    
Lessee, Lease, Description [Line Items]                    
Area of land | ft² 68,636                  
Maximum [Member]                    
Lessee, Lease, Description [Line Items]                    
Operating lease, remaining term         10 years          
Lease renewal term (in years)   10 years   10 years 10 years          
Minimum [Member]                    
Lessee, Lease, Description [Line Items]                    
Operating lease, remaining term         1 year