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Summary of Significant Accounting Policies - Components of Inventory (Details) - USD ($)
$ in Thousands
Aug. 25, 2018
Aug. 26, 2017
Accounting Policies [Abstract]    
Raw materials $ 18,508 $ 18,468
Work in process 3,271 4,159
Finished goods 68,397 56,441
Total inventory $ 90,176 $ 79,068