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Earnings Per Share | 12 Months Ended
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May 31, 2018
Earnings Per Share [Abstract] |
EARNINGS PER SHARE | EARNINGS PER SHARE Basic earnings per share are based on the weighted average number of common shares outstanding. In addition, diluted earnings per share include the dilutive effect of potential common stock consisting of stock options, restricted stock units and performance stock units, provided that the inclusion of such securities is not anti-dilutive. In periods with a net loss, stock options and restricted stock units are not included in the computation of basic loss per share as the impact would be anti-dilutive. The following table reconciles basic to diluted weighted average shares outstanding for the years ended May 31, 2018, 2017 and 2016:
| Year ended May 31,
| 2018 |  | 2017 |  | 2016
Basic | 37,074,797 |  |  | 36,616,859 |  |  | 36,161,383 |
Effect of dilutive securities | 464,603 |  |  | 342,391 |  |  | — |
Diluted | 37,539,400 |  |  | 36,959,250 |  |  | 36,161,383 |
Securities excluded as their inclusion would be anti-dilutive | 1,077,256 |  |  | 1,058,790 |  |  | 3,277,037 |

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- Definition The entire disclosure for earnings per share. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -URI http://asc.fasb.org/topic&trid=2144383 + Details
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