Goodwill, Service Contracts and Other Assets - Changes in Carrying Amount of Service Contracts by Operating Segment (Details) $ in Thousands	3 Months Ended
Aug. 31, 2018 USD ($)
Service contracts [Roll Forward]
Beginning balance	$ 545,768
Service contracts acquired	4,633
Service contracts amortization	(14,026)
Foreign currency translation	(510)
Ending balance	535,865
Uniform Rental and Facility Services
Service contracts [Roll Forward]
Beginning balance	492,067
Service contracts acquired	0
Service contracts amortization	(11,729)
Foreign currency translation	(497)
Ending balance	479,841
First Aid and Safety Services
Service contracts [Roll Forward]
Beginning balance	27,294
Service contracts acquired	13
Service contracts amortization	(963)
Foreign currency translation	(13)
Ending balance	26,331
All Other
Service contracts [Roll Forward]
Beginning balance	26,407
Service contracts acquired	4,620
Service contracts amortization	(1,334)
Foreign currency translation	0
Ending balance	$ 29,693

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://fasb.org/us-gaap/role/ref/legacyRef
-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

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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

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 30
-Section 50
-Paragraph 1
-Subparagraph (a)(1)
-URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16265-109275

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