Segment Reporting - Schedule of Segment Reporting Information (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	May 25, 2019	May 26, 2018	May 25, 2019	May 26, 2018
Segment Reporting Information [Line Items]
Revenues	$ 453,720	$ 427,384	$ 1,329,755	$ 1,262,426
Operating income (loss)	60,212	47,087	173,084	140,950
Interest income, net	(2,293)	(1,189)	(6,007)	(3,895)
Income (loss) before taxes	61,700	47,792	177,054	144,393
U.S. and Canadian Rental and Cleaning | Operating Segments
Segment Reporting Information [Line Items]
Revenues	391,128	369,814	1,157,392	1,103,718
Operating income (loss)	70,474	51,981	189,807	155,295
Interest income, net	(1,008)	(945)	(3,113)	(2,988)
Income (loss) before taxes	71,480	52,929	192,899	158,295
MFG | Operating Segments
Segment Reporting Information [Line Items]
Revenues	58,596	61,331	187,120	185,045
Operating income (loss)	18,684	21,911	63,576	67,892
Income (loss) before taxes	18,606	21,946	63,322	67,830
MFG | Net Interco MFG Elim
Segment Reporting Information [Line Items]
Revenues	(58,573)	(61,300)	(187,045)	(184,957)
Operating income (loss)	3,115	(1,499)	415	(9,033)
Income (loss) before taxes	3,116	(1,499)	415	(9,033)
Corporate | Operating Segments
Segment Reporting Information [Line Items]
Revenues	8,630	9,226	27,199	28,016
Operating income (loss)	(38,830)	(32,420)	(96,460)	(89,739)
Interest income, net	(1,285)	(244)	(2,894)	(907)
Income (loss) before taxes	(37,975)	(32,203)	(94,710)	(88,816)
Subtotal Core Laundry Operations
Segment Reporting Information [Line Items]
Revenues	399,781	379,071	1,184,666	1,131,822
Operating income (loss)	53,443	39,973	157,338	124,415
Interest income, net	(2,293)	(1,189)	(6,007)	(3,895)
Income (loss) before taxes	55,227	41,173	161,926	128,276
Specialty Garments
Segment Reporting Information [Line Items]
Revenues	37,313	34,060	101,506	89,496
Specialty Garments | Operating Segments
Segment Reporting Information [Line Items]
Revenues	37,313	34,060	101,506	89,496
Operating income (loss)	5,368	5,589	12,073	12,866
Income (loss) before taxes	5,072	5,094	11,455	12,448
First Aid
Segment Reporting Information [Line Items]
Revenues	16,626	14,253	43,583	41,108
First Aid | Operating Segments
Segment Reporting Information [Line Items]
Revenues	16,626	14,253	43,583	41,108
Operating income (loss)	1,401	1,525	3,673	3,669
Income (loss) before taxes	$ 1,401	$ 1,525	$ 3,673	$ 3,669