Revenue Recognition - Schedule of Total Revenue Disaggregated by Service Type (Details) - USD ($) $ in Thousands	3 Months Ended
	Nov. 25, 2023	Nov. 26, 2022
Disaggregation of Revenue [Line Items]
Total revenues	$ 593,525	$ 541,798
Revenue | Revenues
Disaggregation of Revenue [Line Items]
Percentage of revenues	100.00%	100.00%
Core Laundry Operations
Disaggregation of Revenue [Line Items]
Total revenues	$ 523,989	$ 477,398
Core Laundry Operations | Revenue | Revenues
Disaggregation of Revenue [Line Items]
Percentage of revenues	88.30%	88.10%
Specialty Garments
Disaggregation of Revenue [Line Items]
Total revenues	$ 44,669	$ 44,079
Specialty Garments | Revenue | Revenues
Disaggregation of Revenue [Line Items]
Percentage of revenues	7.50%	8.10%
First Aid
Disaggregation of Revenue [Line Items]
Total revenues	$ 24,867	$ 20,321
First Aid | Revenue | Revenues
Disaggregation of Revenue [Line Items]
Percentage of revenues	4.20%	3.80%