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Share-Based and Other Compensation - Performance Based Incentive Plan (Details) - Performance Based Incentive Plan - $ / shares
12 Months Ended
Aug. 26, 2020
Aug. 28, 2019
Units    
Beginning balance (in shares) 266,443 373,294
Forfeited (in shares) (266,443) (106,851)
Ending balance (in shares) 0 266,443
Weighted Average Fair Value    
Beginning balance (in dollars per share) $ 3.68 $ 3.68
Forfeited (in dollars per share) 3.68 3.68
Ending balance (in dollars per share) $ 0 $ 3.68