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Treasury Stock (Tables) | 9 Months Ended
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Feb. 28, 2017
Stockholders' Equity Attributable to Parent [Abstract] |
Tabular Disclosure of an Entity's Treasury Stock | The table below represents the current Board authorization:
| Amount |
July 2015 | 50.0 |  |
Less repurchases made under the authorization as of February 28, 2017 | (10.5 | ) |
Remaining Board authorization at February 28, 2017 | $ | 39.5 |  |

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- Definition Tabular disclosure of an entity's treasury stock including amount authorized by an entity's board of directors, the number of shares repurchased and the remaining maximum dollar value of shares available for repurchase under the program + References No definition available. + Details
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- References No definition available. + Details
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