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Organization, Basis of Presentation, and Summary of Significant Accounting Policies - Components of Inventories (Details) - USD ($)
$ in Thousands
Nov. 29, 2020
May 31, 2020
Accounting Policies [Abstract]    
Finished goods $ 36,325 $ 35,177
Raw materials 26,983 25,856
Work in progress 7,894 5,278
Total $ 71,202 $ 66,311