Summary of Significant Accounting Policies - Narrative (Details)	12 Months Ended
	Aug. 27, 2022 USD ($) Segment shares	Aug. 28, 2021 USD ($) shares	Aug. 29, 2020 USD ($) shares
Summary of Significant Accounting Policies [Line Items]
Number of reporting segments | Segment	5
Short-term investments	$ 0	$ 0
Percentage of revenues derived from route servicing fees	88.50%
Current assets related to deferred commissions	$ 15,200,000	14,200,000
Noncurrent assets related to deferred commissions	65,100,000	60,600,000
Amortization expense related to deferred commissions	$ 15,400,000	14,400,000
Estimated service lives of rental merchandise, minimum	6 months
Estimated service lives of rental merchandise, maximum	36 months
Impairment of goodwill and definite-lived intangible assets	$ 0	0	$ 0
Weighted average useful life	13 years 6 months
Discount rate, lower range	3.00%
Discount range, upper range	3.40%
Inflation rate	3.00%
Advertising costs	$ 14,700,000	$ 3,500,000	$ 3,800,000
Anti-dilutive securities excluded from calculation of diluted earnings per share (in shares) | shares	34,416	6,005	8,094
Accounting Standards Update 2017-07
Summary of Significant Accounting Policies [Line Items]
Change in accounting principle, accounting standards update, adoption date	Aug. 29, 2021
Change in accounting principle, accounting standards update, adopted	true
Change in accounting principle, accounting standards update, immaterial effect	true
Accounting Standards Update 2019-12
Summary of Significant Accounting Policies [Line Items]
Change in accounting principle, accounting standards update, adoption date	Aug. 29, 2021
Change in accounting principle, accounting standards update, adopted	true
Change in accounting principle, accounting standards update, immaterial effect	true
Conversion of Class B Common Stock in to Common Stock
Summary of Significant Accounting Policies [Line Items]
Conversion ratio	1
Stock Appreciation Rights (SARs)
Summary of Significant Accounting Policies [Line Items]
Expiration period	10 years
Stock Appreciation Rights (SARs) | Certain Share-based Awards Granted During Fiscal 2020, 2019 and 2018 to Non-employee Directors | Non-Employee Directors
Summary of Significant Accounting Policies [Line Items]
Expiration period	8 years
Minimum
Summary of Significant Accounting Policies [Line Items]
Discount period, lower range	10 years
Remaining lives	1 year
Credit adjusted risk-free rate	7.00%
Maximum
Summary of Significant Accounting Policies [Line Items]
Discount period, upper range	30 years
Remaining lives	22 years
Credit adjusted risk-free rate	7.50%
Customer contracts
Summary of Significant Accounting Policies [Line Items]
Weighted average useful life	13 years 9 months 18 days
Other intangible assets
Summary of Significant Accounting Policies [Line Items]
Weighted average useful life	6 years 1 month 6 days
Core Laundry Operations
Summary of Significant Accounting Policies [Line Items]
Percentage of revenues recognized over time	88.40%	95.80%	94.70%
Percentage of revenues recognized at a point in time	11.60%	4.20%	5.30%
Specialty Garments
Summary of Significant Accounting Policies [Line Items]
Percentage of revenues recognized over time	83.80%	81.80%	79.20%
Percentage of revenues recognized at a point in time	16.20%	18.20%	20.80%
First Aid
Summary of Significant Accounting Policies [Line Items]
Percentage of revenues recognized at a point in time	100.00%