Accrued Expenses - Narrative (Details)  | 
Feb. 28, 2017  | 
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| Payables and Accruals [Abstract] | |
| Maximum percentage of total current liabilities included in accrued expenses | 5.00% | 
| Maximum percentage of long-term liabilities included in accrued expenses | 5.00% | 
| X | ||||||||||
- Definition Maximum percentage of current liabilities at which all other liabilities individually did not exceed. No definition available. 
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| X | ||||||||||
- Definition Maximum Percent of Long-term Liabilities No definition available. 
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| X | ||||||||||
- References No definition available. 
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