Income Taxes - Schedule of Components of Deferred Income Taxes (Details) - USD ($) $ in Thousands	Aug. 29, 2026	Aug. 30, 2025
Deferred tax assets:
Payroll and benefit related	$ 16,195	$ 16,578
Insurance reserves	14,010	14,694
Environmental reserves	7,351	7,412
Accrued expenses	5,266	7,236
Operating lease liabilities	20,144	17,911
Research and development	1,916	4,891
Transaction costs	8,333	0
Other	13,312	13,121
Total deferred tax assets	86,527	81,843
Deferred tax liabilities:
Uniform and other rental items in service	60,579	56,617
Property and equipment	59,250	57,953
Intangible and other amortizable assets	59,834	54,169
Capitalized contract costs	28,168	26,441
Operating lease right-of-use assets	19,601	17,356
Other	0	48
Total deferred tax liabilities	227,432	212,584
Net deferred tax liability	$ 140,905	$ 130,741