Quarterly report pursuant to Section 13 or 15(d)

Summary of Inventory (Detail)

v3.20.4
Summary of Inventory (Detail) - USD ($)
$ in Thousands
Nov. 30, 2020
May 31, 2020
Inventory Disclosure [Abstract]    
Raw materials $ 28,294 $ 19,147
Work in-progress 70,777  
Total $ 99,071 $ 19,147