Segment Reporting - Schedule of Segment Reporting Information (Details) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
May 30, 2020	May 25, 2019	May 30, 2020	May 25, 2019
Segment Reporting Information [Line Items]
Revenues	$ 445,518	$ 453,720	$ 1,375,516	$ 1,329,755
Operating income (loss)	27,708	60,212	131,930	173,084
Interest income, net	(1,054)	(2,293)	(5,590)	(6,007)
Income (loss) before taxes	27,206	61,700	134,897	177,054
U.S. and Canadian Rental and Cleaning \| Operating Segments
Segment Reporting Information [Line Items]
Revenues	362,288	391,151	1,173,252	1,157,467
Operating income (loss)	42,994	70,474	178,289	189,807
Interest income, net	(865)	(1,008)	(2,965)	(3,113)
Income (loss) before taxes	43,856	71,480	181,232	192,899
MFG \| Operating Segments
Segment Reporting Information [Line Items]
Revenues	44,949	58,596	163,620	187,120
Operating income (loss)	13,226	18,684	52,486	63,576
Income (loss) before taxes	13,344	18,606	52,393	63,322
MFG \| Net Interco MFG Elim
Segment Reporting Information [Line Items]
Revenues	(44,949)	(58,596)	(163,620)	(187,120)
Operating income (loss)	5,398	3,115	5,965	415
Income (loss) before taxes	5,398	3,116	5,965	415
Corporate \| Operating Segments
Segment Reporting Information [Line Items]
Revenues	26,123	8,630	43,649	27,199
Operating income (loss)	(41,927)	(38,830)	(124,884)	(96,460)
Interest income, net	(189)	(1,285)	(2,625)	(2,894)
Income (loss) before taxes	(42,543)	(37,975)	(123,852)	(94,710)
Subtotal Core Laundry Operations
Segment Reporting Information [Line Items]
Revenues	388,411	399,781	1,216,901	1,184,666
Operating income (loss)	19,691	53,443	111,856	157,338
Interest income, net	(1,054)	(2,293)	(5,590)	(6,007)
Income (loss) before taxes	20,055	55,227	115,738	161,926
Specialty Garments
Segment Reporting Information [Line Items]
Revenues	36,163	37,313	105,545	101,506
Specialty Garments \| Operating Segments
Segment Reporting Information [Line Items]
Revenues	36,163	37,313	105,545	101,506
Operating income (loss)	6,380	5,368	15,886	12,073
Income (loss) before taxes	5,514	5,072	14,971	11,455
First Aid
Segment Reporting Information [Line Items]
Revenues	20,944	16,626	53,070	43,583
First Aid \| Operating Segments
Segment Reporting Information [Line Items]
Revenues	20,944	16,626	53,070	43,583
Operating income (loss)	1,637	1,401	4,188	3,673
Income (loss) before taxes	$ 1,637	$ 1,401	$ 4,188	$ 3,673

Amount of income (loss) from continuing operations before deduction of income tax expense (benefit) and income (loss) attributable to noncontrolling interest, and addition of income (loss) from equity method investments.

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