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Accrued Severance (Tables) | 3 Months Ended
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Aug. 31, 2013
Disclosure For Accrued Severance [Abstract] |
Schedule Of Accrued Severance Costs [Table Text Block] | The table below provides information regarding Accrued severance, which is included in “Other accrued expenses” in the Company’s condensed consolidated balance sheets.
|  | Three months ended August 31, 2013 |  |  | Twelve months ended May 31, 2013 |  |  | Three months ended August 31, 2012 |
Beginning balance |  | $ | 3.3 |  |  | $ | 2.7 |  |  | $ | 2.7 |
Accruals |  |  | 2.3 |  |  |  | 13.4 |  |  |  | 1.3 |
Payments |  |  | (3.6 | ) |  |  | (12.8 | ) |  |  | (2.9 | )
Ending balance |  | $ | 2.0 |  |  | $ | 3.3 |  |  | $ | 1.1 |

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- Definition Tabular disclosure for accrued severance cost. + References No definition available. + Details
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