Segment Reporting - Schedule of Segment Reporting Information (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Feb. 26, 2022	Feb. 27, 2021	Feb. 26, 2022	Feb. 27, 2021
Segment Reporting Information [Line Items]
Revenues	$ 486,696	$ 449,764	$ 972,860	$ 896,617
Operating income (loss)	22,613	40,693	67,403	96,735
Interest income, net	(751)	(863)	(1,399)	(1,431)
Income (loss) before taxes	22,770	42,140	67,472	98,001
U.S. and Canadian Rental and Cleaning | Operating Segments
Segment Reporting Information [Line Items]
Revenues	424,896	388,627	844,949	774,785
Operating income (loss)	59,914	59,156	133,839	133,996
Interest income, net	(814)	(778)	(1,480)	(1,471)
Income (loss) before taxes	60,711	59,845	135,281	135,387
MFG | Operating Segments
Segment Reporting Information [Line Items]
Revenues	65,618	54,549	156,343	113,631
Operating income (loss)	14,826	14,774	38,851	34,584
Income (loss) before taxes	14,711	14,736	38,677	34,410
MFG | Net Interco MFG Elim
Segment Reporting Information [Line Items]
Revenues	(65,618)	(54,549)	(156,343)	(113,631)
Operating income (loss)	1,545	4,178	(6,054)	3,184
Income (loss) before taxes	1,545	4,178	(6,054)	3,184
Corporate | Operating Segments
Segment Reporting Information [Line Items]
Revenues	8,160	9,608	16,953	16,640
Operating income (loss)	(57,540)	(42,742)	(111,384)	(87,528)
Interest income, net	63	(85)	81	40
Income (loss) before taxes	(58,067)	(43,317)	(112,057)	(88,700)
Subtotal Core Laundry Operations
Segment Reporting Information [Line Items]
Revenues	433,056	398,235	861,902	791,425
Operating income (loss)	18,745	35,366	55,252	84,236
Interest income, net	(751)	(863)	(1,399)	(1,431)
Income (loss) before taxes	18,900	35,442	55,847	84,281
Specialty Garments
Segment Reporting Information [Line Items]
Revenues	35,538	35,222	75,022	73,356
Specialty Garments | Operating Segments
Segment Reporting Information [Line Items]
Revenues	35,538	35,222	75,022	73,356
Operating income (loss)	3,850	5,234	12,479	12,393
Income (loss) before taxes	3,849	6,603	11,954	13,611
First Aid
Segment Reporting Information [Line Items]
Revenues	18,102	16,307	35,936	31,836
First Aid | Operating Segments
Segment Reporting Information [Line Items]
Revenues	18,102	16,307	35,936	31,836
Operating income (loss)	18	93	(328)	106
Income (loss) before taxes	$ 21	$ 95	$ (329)	$ 109