v3.26.3
Property and Equipment, Net - Schedule of Property and Equipment, Net (Detail) - USD ($)
$ in Thousands
Sep. 30, 2026
Dec. 31, 2025
Property, Plant and Equipment [Line Items]    
Property and equipment, gross $ 32,423 $ 64,248
Less: Accumulated depreciation and amortization (29,424) (56,613)
Property and equipment, net 2,999 7,635
Laboratory Equipment [Member]    
Property, Plant and Equipment [Line Items]    
Property and equipment, gross 21,934 23,852
Computer Equipment [Member]    
Property, Plant and Equipment [Line Items]    
Property and equipment, gross 3,423 4,058
Furniture and Office Equipment [Member]    
Property, Plant and Equipment [Line Items]    
Property and equipment, gross 2,456 4,523
Leasehold Improvements [Member]    
Property, Plant and Equipment [Line Items]    
Property and equipment, gross 3,749 30,954
Construction in Progress [Member]    
Property, Plant and Equipment [Line Items]    
Property and equipment, gross $ 861 $ 861