Impairment of Long-Lived Assets, Discontinued Operations, Property Held for Sale and Store Closings - Schedule of Abandoned Leased Facilities (Details) - USD ($) $ in Thousands	Mar. 10, 2021	Aug. 26, 2020
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Operating lease liabilities-current		$ 3,903
Operating lease liabilities-noncurrent		17,797
Total lease liabilities	$ 15,705	21,700
Accrued expenses and other liabilities		19,569
Discontinued Operations, Disposed of by Means Other than Sale, Abandonment
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Operating lease liabilities-current		365
Operating lease liabilities-noncurrent		2,348
Total lease liabilities	1,585	2,713
Accrued expenses and other liabilities	1,700	2,088
Accrued lease termination expense	$ 3,285	$ 4,801