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Schedule II - Valuation and Qualifying Accounts and Reserves (Details) - USD ($)
$ in Thousands
12 Months Ended
Aug. 31, 2019
Aug. 25, 2018
Aug. 26, 2017
Movement In Valuation Allowances And Reserves Roll Forward      
Balance, Beginning of Period $ 9,237 $ 8,719 $ 7,675
Charged to Costs and Expenses 5,996 5,882 5,629
Charges for Which Reserves Were Created or Deductions (5,298) (5,364) (4,585)
Balance, End of Period $ 9,935 $ 9,237 $ 8,719