Revenue Recognition - Narrative (Details) $ in Millions	3 Months Ended
Nov. 24, 2018 USD ($)
Disaggregation of Revenue [Line Items]
Percentage of revenues derived from route servicing fees	91.00%
Current assets related to deferred commissions	$ 10.8
Noncurrent assets related to deferred commissions	43.3
Amortization expense related to deferred commissions	$ 2.8
Core Laundry Operations
Disaggregation of Revenue [Line Items]
Percentage of revenues recognized over time	95.30%
Percentage of revenues recognized at a point in time	4.70%
Specialty Garments
Disaggregation of Revenue [Line Items]
Percentage of revenues recognized over time	83.90%
Percentage of revenues recognized at a point in time	16.10%
First Aid
Disaggregation of Revenue [Line Items]
Percentage of revenues recognized at a point in time	100.00%

Capitalized Contract Cost, Net, Current

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- Definition

Capitalized Contract Cost, Net, Noncurrent

+ References

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- Definition

Revenue From Contracts With Customers, Percentage Of Revenues From Route Servicing Fees

+ References

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- Definition

Revenue, Performance Obligation, Percentage Of Revenues Satisfied At A Point In Time

+ References

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- Definition

Revenue, Performance Obligation, Percentage Of Revenues Satisfied Over Time

+ References

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- Definition

Amount of amortization expense for asset recognized from cost incurred to obtain or fulfill contract with customer.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 340
-SubTopic 40
-Section 50
-Paragraph 3
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=68051541&loc=SL49131252-203054

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