Quarterly report pursuant to Section 13 or 15(d)

License Agreements - Additional Information (Detail)

v3.20.4
License Agreements - Additional Information (Detail)
£ in Millions, $ in Millions
Nov. 30, 2020
Apr. 15, 2019
GBP (£)
Apr. 15, 2019
USD ($)
Licenses Agreements [Line Items]      
Accrued license fee   £ 0.6 $ 0.8
Minimum      
Licenses Agreements [Line Items]      
Royalty on every net sales 0.75%    
Maximum      
Licenses Agreements [Line Items]      
Royalty on every net sales 2.00%