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Basis of Presentation (Tables)
3 Months Ended
Aug. 31, 2021
Organization, Consolidation and Presentation of Financial Statements [Abstract]  
Schedule of Inventory Inventory is comprised of the following: 
(In thousands)August 31, 2021May 31,
2021
Raw materials$15,732 $15,109 
Work in process30,681 37,664 
Finished goods417,279 429,024 
 $463,692 $481,797