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Property and Equipment, net - Additional Information (Detail) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2021
Nov. 30, 2023
Property, Plant and Equipment [Line Items]        
Lease incentives       $ 1,755
Reimbursements of lease incentives $ 808      
Depreciation and amortization expense 259 $ 248 $ 248  
Realized gain on sale of property and equipment 0 $ 0 70  
Laboratory Equipment [Member]        
Property, Plant and Equipment [Line Items]        
Realized gain on sale of property and equipment     $ 70  
New Stamford Lease [Member]        
Property, Plant and Equipment [Line Items]        
Leasehold improvements in process $ 2,533