Quarterly report pursuant to Section 13 or 15(d)

Inventories, net - Shelf-life (Details)

v3.22.1
Inventories, net - Shelf-life (Details) - USD ($)
$ in Thousands
 3 Months Ended 9 Months Ended
Feb. 28, 2022
Feb. 28, 2021
Feb. 28, 2022
Feb. 28, 2021
May 31, 2021
Inventory Realizable Value [Abstract]          
Remaining shelf life 12 or less months $ 5,828   $ 5,828    
Remaining shelf life 12 to 24 months 16,263   16,263    
Remaining shelf life 24 to 36 months 31,351   31,351    
Remaining shelf life 36 to 48 months 33,232   33,232    
Remaining shelf life 60 or more months 1,822   1,822    
Total inventories 88,496   88,496    
Inventories reserved (5,828)   (5,828)    
Total inventories, net 82,668   82,668   $ 93,479
Inventory Write-down, Obsolescence Of Raw Materials 3,300 $ 0 5,100 $ 0  
Inventory Write-down, expired raw materials and untested vialed drug product 1,800   3,800 $ 4,800  
Raw Materials [Member]          
Inventory Realizable Value [Abstract]          
Remaining shelf life 12 or less months 5,828   5,828    
Remaining shelf life 12 to 24 months 16,263   16,263    
Remaining shelf life 24 to 36 months 2,209   2,209    
Remaining shelf life 36 to 48 months 888   888    
Remaining shelf life 60 or more months 157   157    
Total inventories 25,345   25,345    
Inventories reserved (5,828)   (5,828)    
Total inventories, net 19,517   19,517    
Bulk Drug Substance [Member]          
Inventory Realizable Value [Abstract]          
Remaining shelf life 60 or more months 1,665   1,665    
Total inventories 1,665   1,665    
Total inventories, net 1,665   1,665    
Drug Products [Member]          
Inventory Realizable Value [Abstract]          
Remaining shelf life 24 to 36 months 29,142   29,142    
Remaining shelf life 36 to 48 months 32,344   32,344    
Total inventories 61,486   61,486    
Total inventories, net $ 61,486   $ 61,486