Revenue Recognition - Schedule of Total Revenue Disaggregated by Service Type (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	May 29, 2021	May 30, 2020	May 29, 2021	May 30, 2020
Disaggregation of Revenue [Line Items]
Total revenues	$ 464,323	$ 445,518	$ 1,360,940	$ 1,375,516
Revenue | Revenues
Disaggregation of Revenue [Line Items]
Percentage of revenues	100.00%	100.00%	100.00%	100.00%
Core Laundry Operations
Disaggregation of Revenue [Line Items]
Total revenues	$ 409,031	$ 388,411	$ 1,200,456	$ 1,216,901
Core Laundry Operations | Revenue | Revenues
Disaggregation of Revenue [Line Items]
Percentage of revenues	88.10%	87.20%	88.20%	88.50%
Specialty Garments
Disaggregation of Revenue [Line Items]
Total revenues	$ 38,236	$ 36,163	$ 111,592	$ 105,545
Specialty Garments | Revenue | Revenues
Disaggregation of Revenue [Line Items]
Percentage of revenues	8.20%	8.10%	8.20%	7.70%
First Aid
Disaggregation of Revenue [Line Items]
Total revenues	$ 17,056	$ 20,944	$ 48,892	$ 53,070
First Aid | Revenue | Revenues
Disaggregation of Revenue [Line Items]
Percentage of revenues	3.70%	4.70%	3.60%	3.90%