Goodwill, Service Contracts and Other Assets - Changes in Carrying Amount of Service Contracts (Details) $ in Thousands	3 Months Ended
Aug. 31, 2016 USD ($)
Service contracts [Roll Forward]
Beginning balance	$ 83,715
Service contracts acquired	4,278
Service contracts amortization	(3,199)
Foreign currency translation	(2)
Ending balance	84,792
Uniform Rental and Facility Services
Service contracts [Roll Forward]
Beginning balance	21,191
Service contracts acquired	3,521
Service contracts amortization	(798)
Foreign currency translation	0
Ending balance	23,914
First Aid and Safety Services
Service contracts [Roll Forward]
Beginning balance	32,252
Service contracts acquired	0
Service contracts amortization	(936)
Foreign currency translation	(2)
Ending balance	31,314
All Other
Service contracts [Roll Forward]
Beginning balance	30,272
Service contracts acquired	757
Service contracts amortization	(1,465)
Foreign currency translation	0
Ending balance	$ 29,564

Amount of reduction of finite-lived intangible assets due to amortization during the period.

No definition available.

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Balance Type:	credit
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- Definition

Amount of foreign currency translation gain (loss) which increases (decreases) assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

+ References

No definition available.

+ Details

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- Definition

Amount after amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 30
-Section 50
-Paragraph 2
-Subparagraph (a)(1)
-URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275

+ Details

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- Definition

A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

+ References

No definition available.

+ Details

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- Definition

Amount of increase in assets, excluding financial assets, lacking physical substance with a definite life, from an acquisition.

+ References

No definition available.

+ Details

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- Details

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