XML 119 R105.htm IDEA: XBRL DOCUMENT
v3.7.0.1

Subsequent Event - Narrative (Details) - Service Line and Business Unit - Discontinued Operations, Held-for-sale or Disposed of by Sale - USD ($) $ / shares in Units, $ in Millions | 12 Months Ended |
--- | --- | ---
May 31, 2017 | May 31, 2016 | May 31, 2015 | Jul. 11, 2017
Subsequent Event [Line Items] |  |  |  |
Revenue | $ 105.6 | $ 109.7 | $ 107.2 |
Diluted earnings per share (in dollars per share) | $ 0.07 | $ 0.07 | $ 0.07 |
Subsequent Event |  |  |  |
Subsequent Event [Line Items] |  |  |  |
Sale price |  |  |  | $ 130.0

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- Definition Disposal Group, Including Discontinued Operation, Earnings Per Share, Diluted + References No definition available. + Details
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Namespace Prefix: | ctas_
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Balance Type: | na
Period Type: | duration

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- Definition Amount of consideration received or receivable for the disposal of assets and liabilities, including discontinued operation. + References No definition available. + Details
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Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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- Definition Amount of revenue attributable to disposal group, including, but not limited to, discontinued operation. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 205 -SubTopic 20 -Section 50 -Paragraph 5B -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=64827811&loc=SL51721673-107760 + Details
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- Definition Detail information of subsequent event by type. User is expected to use existing line items from elsewhere in the taxonomy as the primary line items for this disclosure, which is further associated with dimension and member elements pertaining to a subsequent event. + References No definition available. + Details
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Namespace Prefix: | us-gaap_
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- Details
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- Details
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Data Type: | na
Balance Type: |
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- Details
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