Income Taxes (Narrative) (Details) - $ / shares |
3 Months Ended | 6 Months Ended | ||
|---|---|---|---|---|
Nov. 30, 2017 |
Nov. 30, 2016 |
Nov. 30, 2017 |
Nov. 30, 2016 |
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| Income Tax Contingency [Line Items] | ||||
| Effective income tax rate | 35.00% | 35.20% | 34.70% | 34.10% |
| Diluted earnings per share impact of discrete tax benefit | $ 0.01 | $ 0.02 | $ 0.04 | |
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- Definition Net discrete tax benefit recognized in income taxes related to employee stock-based compensation payments. No definition available.
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| X | ||||||||||
- Definition Percentage of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| 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. No definition available.
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