New Accounting Pronouncements	6 Months Ended
New Accounting Pronouncements	Nov. 30, 2014
Accounting Policies [Abstract]
New Accounting Pronouncements	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. 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.

The entire disclosure for all significant accounting policies of the reporting entity.