Income Taxes - Components of Deferred Income Taxes (Details) - USD ($) $ in Thousands	Aug. 31, 2024	Aug. 26, 2023
Deferred tax assets
Payroll and benefit related	$ 16,009	$ 15,284
Insurance related	14,067	14,347
Environmental	7,807	7,542
Accrued expenses	8,169	7,847
Operating lease liabilities	17,083	16,162
Research and development	6,243	3,628
Other	12,884	11,916
Total deferred tax assets	82,262	76,726
Deferred tax liabilities
Payroll and benefit related	24,655	22,230
Tax in excess of book depreciation	59,113	53,597
Purchased intangible assets	48,908	43,994
Rental merchandise in service	59,692	62,562
Operating lease right-of-use assets	16,575	15,600
Other	320	488
Total deferred tax liabilities	209,263	198,471
Net deferred tax liability	$ 127,001	$ 121,745