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Basis of Presentation (Tables)
6 Months Ended
Nov. 30, 2021
Organization, Consolidation and Presentation of Financial Statements [Abstract]  
Schedule of Inventory Inventory is comprised of the following: 
(In thousands)November 30, 2021May 31,
2021
Raw materials$16,385 $15,109 
Work in process35,328 37,664 
Finished goods413,151 429,024 
 $464,864 $481,797