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Summary of Significant Accounting Policies - Goodwill and Other Intangible assets (Details) | 12 Months Ended
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May. 31, 2015 segment
Finite-Lived Intangible Assets [Line Items] |
Number of reporting units | 6
Minimum |
Finite-Lived Intangible Assets [Line Items] |
Finite-lived intangible asset, useful life | 2 years
Maximum |
Finite-Lived Intangible Assets [Line Items] |
Finite-lived intangible asset, useful life | 26 years

X
- Definition Useful life of finite-lived intangible assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References No definition available. + Details
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Balance Type: | na
Period Type: | duration

X
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
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X
- Definition Number of operating segments. An operating segment is a component of an enterprise: (a) that engages in business activities from which it may earn revenues and incur expenses (including revenues and expenses relating to transactions with other components of the same enterprise), (b) whose operating results are regularly reviewed by the enterprise's chief operating decision maker to make decisions about resources to be allocated to the segment and assess its performance, and (c) for which discrete financial information is available. An operating segment may engage in business activities for which it has yet to earn revenues, for example, start-up operations may be operating segments before earning revenues. + References No definition available. + Details
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- Details
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