Segment Reporting - Schedule of Segment Reporting Information (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	May 28, 2022	May 29, 2021	May 28, 2022	May 29, 2021
Segment Reporting Information [Line Items]
Revenues	$ 511,548	$ 464,323	$ 1,484,408	$ 1,360,940
Operating income (loss)	33,697	54,159	101,100	150,894
Interest income, net	(340)	(671)	(1,739)	(2,102)
Income (loss) before taxes	33,606	54,482	101,078	152,483
U.S. and Canadian Rental and Cleaning | Operating Segments
Segment Reporting Information [Line Items]
Revenues	439,462	399,500	1,284,411	1,174,285
Operating income (loss)	75,660	75,550	209,499	209,546
Interest income, net	(736)	(675)	(2,216)	(2,146)
Income (loss) before taxes	76,419	76,062	211,700	211,449
MFG | Operating Segments
Segment Reporting Information [Line Items]
Revenues	58,369	67,573	214,712	181,204
Operating income (loss)	12,117	17,219	50,968	51,803
Interest income, net	0
Income (loss) before taxes	12,045	17,103	50,722	51,513
MFG | Net Interco MFG Elim
Segment Reporting Information [Line Items]
Revenues	(58,369)	(67,573)	(214,712)	(181,204)
Operating income (loss)	4,219	(258)	(1,835)	2,926
Interest income, net	0
Income (loss) before taxes	4,219	(258)	(1,835)	2,926
Corporate | Operating Segments
Segment Reporting Information [Line Items]
Revenues	10,577	9,531	27,530	26,171
Operating income (loss)	(65,565)	(46,877)	(176,949)	(134,405)
Interest income, net	396	4	477	44
Income (loss) before taxes	(66,362)	(47,573)	(178,419)	(136,273)
Subtotal Core Laundry Operations
Segment Reporting Information [Line Items]
Revenues	450,039	409,031	1,311,941	1,200,456
Operating income (loss)	26,431	45,634	81,683	129,870
Interest income, net	(340)	(671)	(1,739)	(2,102)
Income (loss) before taxes	26,321	45,334	82,168	129,615
Specialty Garments
Segment Reporting Information [Line Items]
Revenues	41,198	38,236	116,220	111,592
Specialty Garments | Operating Segments
Segment Reporting Information [Line Items]
Revenues	41,198	38,236	116,220	111,592
Operating income (loss)	7,161	8,300	19,640	20,693
Interest income, net	0
Income (loss) before taxes	7,179	8,918	19,133	22,529
First Aid
Segment Reporting Information [Line Items]
Revenues	20,311	17,056	56,247	48,892
First Aid | Operating Segments
Segment Reporting Information [Line Items]
Revenues	20,311	17,056	56,247	48,892
Operating income (loss)	105	225	(223)	331
Interest income, net	0
Income (loss) before taxes	$ 106	$ 230	$ (223)	$ 339