Segment Reporting - Schedule of Segment Reporting Information (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	May 29, 2021	May 30, 2020	May 29, 2021	May 30, 2020
Segment Reporting Information [Line Items]
Revenues	$ 464,323	$ 445,518	$ 1,360,940	$ 1,375,516
Operating income (loss)	54,159	27,708	150,894	131,930
Interest income, net	(671)	(1,054)	(2,102)	(5,590)
Income (loss) before taxes	54,482	27,206	152,483	134,897
U.S. and Canadian Rental and Cleaning | Operating Segments
Segment Reporting Information [Line Items]
Revenues	399,500	362,288	1,174,285	1,173,252
Operating income (loss)	75,550	42,994	209,546	178,289
Interest income, net	(675)	(865)	(2,146)	(2,965)
Income (loss) before taxes	76,062	43,856	211,449	181,232
MFG | Operating Segments
Segment Reporting Information [Line Items]
Revenues	67,573	44,949	181,204	163,620
Operating income (loss)	17,219	13,226	51,803	52,486
Income (loss) before taxes	17,103	13,344	51,513	52,393
MFG | Net Interco MFG Elim
Segment Reporting Information [Line Items]
Revenues	(67,573)	(44,949)	(181,204)	(163,620)
Operating income (loss)	(258)	5,398	2,926	5,965
Income (loss) before taxes	(258)	5,398	2,926	5,965
Corporate | Operating Segments
Segment Reporting Information [Line Items]
Revenues	9,531	26,123	26,171	43,649
Operating income (loss)	(46,877)	(41,927)	(134,405)	(124,884)
Interest income, net	4	(189)	44	(2,625)
Income (loss) before taxes	(47,573)	(42,543)	(136,273)	(123,852)
Subtotal Core Laundry Operations
Segment Reporting Information [Line Items]
Revenues	409,031	388,411	1,200,456	1,216,901
Operating income (loss)	45,634	19,691	129,870	111,856
Interest income, net	(671)	(1,054)	(2,102)	(5,590)
Income (loss) before taxes	45,334	20,055	129,615	115,738
Specialty Garments
Segment Reporting Information [Line Items]
Revenues	38,236	36,163	111,592	105,545
Specialty Garments | Operating Segments
Segment Reporting Information [Line Items]
Revenues	38,236	36,163	111,592	105,545
Operating income (loss)	8,300	6,380	20,693	15,886
Income (loss) before taxes	8,918	5,514	22,529	14,971
First Aid
Segment Reporting Information [Line Items]
Revenues	17,056	20,944	48,892	53,070
First Aid | Operating Segments
Segment Reporting Information [Line Items]
Revenues	17,056	20,944	48,892	53,070
Operating income (loss)	225	1,637	331	4,188
Income (loss) before taxes	$ 230	$ 1,637	$ 339	$ 4,188