Income Taxes - Components of Deferred Income Taxes (Details) - USD ($) $ in Thousands	Aug. 27, 2022	Aug. 27, 2021
Deferred Tax Assets
Payroll and benefit related	$ 14,923	$ 21,893
Insurance related	15,035	14,042
Environmental	8,212	8,408
Accrued expenses	8,170	10,134
Operating lease liabilities	11,471	9,214
Other	9,841	8,127
Total deferred tax assets	67,652	71,818
Deferred Tax Liabilities
Payroll and benefit related	20,588	19,474
Tax in excess of book depreciation	40,016	40,725
Purchased intangible assets	39,747	36,183
Rental merchandise in service	55,287	45,432
Operating lease right-of-use assets	11,111	8,984
Other	232	157
Total deferred tax liabilities	166,981	150,955
Net deferred tax liability	$ 99,329	$ 79,137