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Summary of Significant Accounting Policies (Tables) | 12 Months Ended
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May. 31, 2015
Accounting Policies [Abstract] |
Schedule of Weighted Average Number of Shares | The following table sets forth the computation of the diluted weighted-average number of shares outstanding for the years ended May 31, 2015, 2014 and 2013:
| 2015 |  | 2014 |  | 2013
| (in thousands)
Basic weighted-average shares outstanding | 134,072 |  |  | 144,238 |  |  | 155,534 |
Plus: Dilutive effect of stock options and other share-based awards | 850 |  |  | 1,138 |  |  | 920 |
Diluted weighted-average shares outstanding | 134,922 |  |  | 145,376 |  |  | 156,454 |

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- Definition Tabular disclosure of the weighted average number of shares used in calculating basic net earnings per share (or unit) and diluted earnings per share (or unit). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257 + Details
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