Quarterly report pursuant to Section 13 or 15(d)

Summary of Inventory (Detail)

v3.20.2
Summary of Inventory (Detail) - USD ($)
$ in Thousands
Aug. 31, 2020
May 31, 2020
Inventory Disclosure [Abstract]    
Raw materials $ 20,263 $ 19,147
Work in-progress 38,211  
Total $ 58,474 $ 19,147