Income Taxes Income Taxes (Details) |
3 Months Ended | |
|---|---|---|
Aug. 31, 2015 |
Aug. 31, 2014 |
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| Income Tax Disclosure [Abstract] | ||
| Effective income tax rate | 29.70% | 36.30% |
| Effective income tax rate, excluding tax benefit related to prior years | 36.00% | |
| Federal statutory income tax rate | 35.00% | |
| X | ||||||||||
- Definition Effective income tax rate,percent, excluding net tax benefit related to prior tax years recognized in the current period. Excludes net tax benefit that was recorded for income derived in prior tax years from customer facing-software the company produced. 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 Percentage of domestic federal statutory tax rate applicable to pretax income (loss). Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- References No definition available.
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