Quarterly report pursuant to Section 13 or 15(d)

Inventories - Additional Information (Detail)

v3.20.4
Inventories - Additional Information (Detail) - USD ($)
$ in Thousands
Nov. 30, 2020
May 31, 2020
Inventory [Line Items]    
Inventories $ 99,071 $ 19,147
Work in progress bulk drug substance 70,777  
Bulk Drug Substance [Member]    
Inventory [Line Items]    
Work in progress bulk drug substance 41,100  
Drug Products [Member]    
Inventory [Line Items]    
Work in progress bulk drug substance $ 29,700