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Summary of Significant Accounting Policies (Narrative) (Details) - USD ($)
$ in Thousands
Nov. 27, 2021
May 29, 2021
May 30, 2020
Significant Accounting Policies [Line Items]      
Reserves for credit losses $ 1,100 $ 795  
Stockholders' equity 997,448 $ 1,012,781  
Retained Earnings [Member]      
Significant Accounting Policies [Line Items]      
Stockholders' equity $ 959,124    
Retained Earnings [Member] | Restatement Adjustment [Member]      
Significant Accounting Policies [Line Items]      
Stockholders' equity     $ 422