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Income Per Share Income Per Share (Details) - USD ($)
$ / shares in Units, shares in Thousands, $ in Thousands
3 Months Ended
Nov. 24, 2018
Nov. 25, 2017
Income Per Share    
Net income $ 22,161 $ 17,958
Weighted average shares outstanding 31,567 31,614
Dilutive impact of awards and options outstanding 247 158
Weighted average shares and potential dilutive shares outstanding 31,814 31,772
Net income per share - basic (in dollars per share) $ 0.70 $ 0.57
Net income per share - assuming dilution (in dollars per share) $ 0.70 $ 0.57
Employee Stock Option [Member]    
Income Per Share    
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount 90 73