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Basis of Presentation - Narrative (Details) - USD ($)
$ / shares in Units, $ in Thousands
 3 Months Ended 9 Months Ended
May 19, 2020
May 30, 2020
May 25, 2019
May 30, 2020
May 25, 2019
Sep. 01, 2019
New Accounting Pronouncements or Change in Accounting Principle [Line Items]            
Dividends paid per common share (in dollars per share) $ 0.11 $ 0.11 $ 0.11 $ 0.33 $ 0.32  
Deferred FICA liability   $ 1,200   $ 1,200    
Employee retention credit   4,000   4,000    
Net lease assets   34,332   34,332    
Net lease liabilities   $ 35,410   $ 35,410    
Accounting Standards Update 2016-02            
New Accounting Pronouncements or Change in Accounting Principle [Line Items]            
Net lease assets           $ 33,800
Net lease liabilities           $ 33,400