Income Taxes - Income Tax Assets and Liabilities for Continuing and Discontinued Operations (Details) - USD ($) $ in Thousands	Aug. 26, 2020	Aug. 28, 2019
Deferred income tax assets:
Workers’ compensation, employee injury, and general liability claims	$ 562	$ 395
Deferred compensation	162	193
Net operating losses	9,916	5,541
General business and foreign tax credits	12,105	12,529
Depreciation, amortization and impairments	3,125	8,561
Interest expense	1,886	0
Lease liabilities	4,731
Straight-line rent, dining cards, accruals, and other	1,413	2,594
Subtotal	33,900	29,813
Valuation allowance	(29,478)	(28,865)
Total deferred income tax assets	4,422	948
Deferred income tax liabilities:
Property taxes and other	769	948
Lease assets	3,653
Total deferred income tax liabilities	4,422	948
Net deferred income tax asset	$ 0	$ 0