New Accounting Pronouncements (Policies)	3 Months Ended
Aug. 31, 2014
Accounting Policies [Abstract]
New Accounting Pronouncements	In May 2014, the Financial Accounting Standards Board (FASB) issued Accounting Standards Update (ASU) 2014-09, "Revenue from Contracts with Customers (Topic 606)," to clarify revenue recognition principles. This guidance is intended to improve disclosure requirements and enhance the comparability of revenue recognition practices. Improved disclosures under the amended guidance relate to the nature, amount, timing and uncertainty of revenue that is recognized from contracts with customers. This guidance will be effective for reporting periods beginning after December 15, 2016 and will be required to be applied retrospectively. Early application of the amendments in this Update is not permitted. Cintas is currently evaluating the impact that ASU 2014-09 will have on its consolidated condensed financial statements. In August 2014, the FASB issued ASU 2014-15, “Presentation of Financial Statements-Going Concern (Subtopic 205-40): Disclosure of Uncertainties about an Entity’s Ability to Continue as a Going Concern”. ASU 2014-15 defines management's responsibility to assess an entity's ability to continue as a going concern, and to provide related footnote disclosures in certain circumstances. This guidance will be effective for all entities in the first annual period ending after December 15, 2016; however, early adoption is permitted. Cintas is currently evaluating the impact that ASU 2014-15 will have on its consolidated condensed financial statements. No other new accounting pronouncement recently issued or newly effective had or is expected to have a material impact on the Consolidated Condensed Financial Statements.

In May 2014, the Financial Accounting Standards Board (FASB) issued Accounting Standards Update (ASU) 2014-09, "Revenue from Contracts with Customers (Topic 606)," to clarify revenue recognition principles. This guidance is intended to improve disclosure requirements and enhance the comparability of revenue recognition practices. Improved disclosures under the amended guidance relate to the nature, amount, timing and uncertainty of revenue that is recognized from contracts with customers. This guidance will be effective for reporting periods beginning after December 15, 2016 and will be required to be applied retrospectively. Early application of the amendments in this Update is not permitted. Cintas is currently evaluating the impact that ASU 2014-09 will have on its consolidated condensed financial statements.

In August 2014, the FASB issued ASU 2014-15, “Presentation of Financial Statements-Going Concern (Subtopic 205-40): Disclosure of Uncertainties about an Entity’s Ability to Continue as a Going Concern”. ASU 2014-15 defines management's responsibility to assess an entity's ability to continue as a going concern, and to provide related footnote disclosures in certain circumstances. This guidance will be effective for all entities in the first annual period ending after December 15, 2016; however, early adoption is permitted. Cintas is currently evaluating the impact that ASU 2014-15 will have on its consolidated condensed financial statements.

No other new accounting pronouncement recently issued or newly effective had or is expected to have a material impact on the Consolidated Condensed Financial Statements.