Commitments and Contingencies (Narrative) (Details) - USD ($) $ in Millions |
Nov. 30, 2017 |
May 31, 2017 |
|---|---|---|
| Commitments to purchase capital assets | $ 4.5 | $ 7.4 |
| X | ||||||||||
- Definition Amount of contractual obligation, including but not limited to, long-term debt, capital lease obligations, operating lease obligations, purchase obligations, and other commitments. No definition available.
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