Revenue Recognition - Schedule of Total Revenue Disaggregated by Service Type (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Feb. 26, 2022	Feb. 27, 2021	Feb. 26, 2022	Feb. 27, 2021
Disaggregation of Revenue [Line Items]
Total revenues	$ 486,696	$ 449,764	$ 972,860	$ 896,617
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	$ 433,056	$ 398,235	$ 861,902	$ 791,425
Core Laundry Operations | Revenue | Revenues
Disaggregation of Revenue [Line Items]
Percentage of revenues	89.00%	88.50%	88.60%	88.30%
Specialty Garments
Disaggregation of Revenue [Line Items]
Total revenues	$ 35,538	$ 35,222	$ 75,022	$ 73,356
Specialty Garments | Revenue | Revenues
Disaggregation of Revenue [Line Items]
Percentage of revenues	7.30%	7.80%	7.70%	8.20%
First Aid
Disaggregation of Revenue [Line Items]
Total revenues	$ 18,102	$ 16,307	$ 35,936	$ 31,836
First Aid | Revenue | Revenues
Disaggregation of Revenue [Line Items]
Percentage of revenues	3.70%	3.60%	3.70%	3.60%