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Shareholders' Equity (Details) - USD ($)
$ / shares in Units, $ in Thousands
3 Months Ended 9 Months Ended
Jul. 09, 2019
Jun. 01, 2019
Jun. 02, 2018
Jun. 01, 2019
Jun. 02, 2018
Components Of Shareholders Equity [Line Items]          
Maximum number of shares that can be repurchased   1,157,000   1,157,000  
Treasury stock reissued to fund plan, shares   14,000 13,000 47,000 43,000
Subsequent Event [Member]          
Components Of Shareholders Equity [Line Items]          
Dividends declared date Jul. 09, 2019        
Dividends payable per share $ 0.75        
Dividend payable date Aug. 06, 2019        
Dividends record date Jul. 23, 2019        
Dividend payable amount $ 41,401        
Class A Common Stock [Member]          
Components Of Shareholders Equity [Line Items]          
Treasury stock repurchased, and treasury stock repurchased and retired, shares   500   1,054,000  
Treasury stock repurchased, and treasury stock repurchased and retired, amount   $ 39      
Treasury Stock [Member]          
Components Of Shareholders Equity [Line Items]          
Shares repurchased     42,000   291,000
Treasury Stock [Member] | Class A Common Stock [Member]          
Components Of Shareholders Equity [Line Items]          
Common stock shares repurchased   500   316,000  
Purchase of treasury stock   $ 39 $ 3,656 $ 24,137 $ 25,384
Treasury stock repurchased, and treasury stock repurchased and retired, amount       $ 84,464