Segment Reporting - Schedule of Segment Reporting Information (Details) - USD ($) $ in Thousands	3 Months Ended
	Nov. 26, 2022	Nov. 27, 2021
Segment Reporting Information [Line Items]
Revenues	$ 541,798	$ 486,164
Operating income (loss)	43,418	44,790
Interest income, net	(2,769)	(648)
Income (loss) before taxes	45,396	44,702
U.S. and Canadian Rental and Cleaning | Operating Segments
Segment Reporting Information [Line Items]
Revenues	462,824	420,053
Operating income (loss)	82,645	73,925
Interest income, net	(1,020)	(666)
Income (loss) before taxes	83,576	74,570
MFG | Operating Segments
Segment Reporting Information [Line Items]
Revenues	77,511	90,725
Operating income (loss)	23,302	24,025
Income (loss) before taxes	23,204	23,966
MFG | Net Interco MFG Elim
Segment Reporting Information [Line Items]
Revenues	(77,511)	(90,725)
Operating income (loss)	(6,783)	(7,599)
Income (loss) before taxes	(6,783)	(7,599)
Corporate | Operating Segments
Segment Reporting Information [Line Items]
Revenues	14,574	8,793
Operating income (loss)	(65,333)	(53,844)
Interest income, net	(1,749)	18
Income (loss) before taxes	(64,192)	(53,990)
Subtotal Core Laundry Operations
Segment Reporting Information [Line Items]
Revenues	477,398	428,846
Operating income (loss)	33,831	36,507
Interest income, net	(2,769)	(648)
Income (loss) before taxes	35,805	36,947
Specialty Garments
Segment Reporting Information [Line Items]
Revenues	44,079	39,484
Specialty Garments | Operating Segments
Segment Reporting Information [Line Items]
Revenues	44,079	39,484
Operating income (loss)	10,183	8,629
Income (loss) before taxes	10,190	8,105
First Aid
Segment Reporting Information [Line Items]
Revenues	20,321	17,834
First Aid | Operating Segments
Segment Reporting Information [Line Items]
Revenues	20,321	17,834
Operating income (loss)	(596)	(346)
Income (loss) before taxes	$ (599)	$ (350)