Segment Reporting - Long-Lived Assets by Geographic Area (Details) - USD ($) $ in Thousands	Aug. 29, 2020	Aug. 31, 2019
Revenues From External Customers And Long Lived Assets [Line Items]
Long-lived assets	$ 1,229,693	$ 1,133,529
United States
Revenues From External Customers And Long Lived Assets [Line Items]
Long-lived assets	1,177,107	1,087,901
Europe, Canada, Mexico and Nicaragua
Revenues From External Customers And Long Lived Assets [Line Items]
Long-lived assets	$ 52,586	$ 45,628