v3.26.3
Operating Leases - Additional Information (Detail) - Britannia Biotech Gateway Limited Partnership [Member]
$ in Millions
 1 Months Ended
Aug. 31, 2026
Sep. 30, 2026
USD ($)
ft²
$ / ft²
Lessee, Lease, Description [Line Items]    
Rentable area | ft²   38,675
Operating lease term Mar. 31, 2027 Mar. 31, 2034
Rent abatement period   10 months
Operating lease, option to terminate   one-time right to terminate the lease effective March 31, 2031, upon written notice by March 31, 2030
Operating lease, existence of option to terminate   true
Lease termination date   Mar. 31, 2031
Payment of termination fee   $ 2.5
Operating lease, option to extend, description   one option to extend the term for an additional seven years
Operating lease, existence of option to extend   true
Operating lease, option to extend, term   7 years
Incremental borrowing rate   10.81%
Increase in operating lease right-of-use asset   $ 9.3
Letter of Credit [Member]    
Lessee, Lease, Description [Line Items]    
Non-current restricted cash   $ 0.6
Minimum [Member]    
Lessee, Lease, Description [Line Items]    
Monthly base rent per rentable square foot | $ / ft²   4.65
Maximum [Member]    
Lessee, Lease, Description [Line Items]    
Monthly base rent per rentable square foot | $ / ft²   5.72