Basis of Presentation (Narrative) (Details) (Shred-it Partnership)	0 Months Ended
Apr. 30, 2014	Apr. 30, 2014
Schedule of Equity Method Investments [Line Items]
Percentage of newly formed partnership owned by Cintas		42.00%
Transition services period	15 months
Shred-it
Schedule of Equity Method Investments [Line Items]
Partnership, ownership percentage by third party	58.00%	58.00%

The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 323

-SubTopic 10

-Section 50

-Paragraph 3

-Subparagraph (a)(1)

-URI http://asc.fasb.org/extlink&oid=6382943&loc=d3e33918-111571

Name:	us-gaap_EquityMethodInvestmentOwnershipPercentage
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant