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Earnings (Loss) Per Share | 9 Months Ended
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Feb. 28, 2017
Earnings Per Share [Abstract] |
Earnings (Loss) Per Share | EARNINGS (LOSS) PER SHARE The following table summarizes the reconciliation of the numerators and denominators for the basic and diluted earnings (loss) per share computation for the periods indicated:
| Three months ended |  | Nine months ended
| February 28, |  | February 29, |  | February 28, |  | February 29,
| 2017 |  | 2016 |  | 2017 |  | 2016
Earnings (loss) from continuing operations attributable to Class A and Common Shares | $ | (15.5 | ) |  | $ | (7.2 | ) |  | $ | 12.9 |  |  | $ | 9.1 |
Earnings (loss) from discontinued operations attributable to Class A and Common Shares, net of tax | 0.1 |  |  | (1.8 | ) |  | 0.0 |  |  | (2.6 | )
Net income (loss) attributable to Class A and Common Shares | $ | (15.4 | ) |  | $ | (9.0 | ) |  | $ | 12.9 |  |  | $ | 6.5 |
Weighted average Shares of Class A Stock and Common Stock outstanding for basic earnings (loss) per share (in millions) | 34.8 |  |  | 34.3 |  |  | 34.6 |  |  | 34.0 |
Dilutive effect of Class A Stock and Common Stock potentially issuable pursuant to stock-based compensation plans (in millions) | — |  |  | — |  |  | 0.7 |  |  | 0.9 |
Adjusted weighted average Shares of Class A Stock and Common Stock outstanding for diluted earnings (loss) per share (in millions) | 34.8 |  |  | 34.3 |  |  | 35.3 |  |  | 34.9 |
Earnings (loss) per share of Class A Stock and Common Stock: |  |  |  |  |  |  |  |  |  |  |
Basic earnings (loss) per share: |  |  |  |  |  |  |  |  |  |  |
Earnings (loss) from continuing operations | $ | (0.45 | ) |  | $ | (0.21 | ) |  | $ | 0.37 |  |  | $ | 0.27 |
Earnings (loss) from discontinued operations, net of tax | $ | 0.01 |  |  | $ | (0.05 | ) |  | $ | 0.00 |  |  | $ | (0.08 | )
Net income (loss) | $ | (0.44 | ) |  | $ | (0.26 | ) |  | $ | 0.37 |  |  | $ | 0.19 |
Diluted earnings (loss) per share: |  |  |  |  |  |  |  |  |  |  |
Earnings (loss) from continuing operations | $ | (0.45 | ) |  | $ | (0.21 | ) |  | $ | 0.36 |  |  | $ | 0.26 |
Earnings (loss) from discontinued operations, net of tax | $ | 0.01 |  |  | $ | (0.05 | ) |  | $ | 0.00 |  |  | $ | (0.07 | )
Net income (loss) | $ | (0.44 | ) |  | $ | (0.26 | ) |  | $ | 0.36 |  |  | $ | 0.19 |
The following table sets forth Options outstanding pursuant to stock-based compensation plans as of the dates indicated:
| February 28, 2017 |  | February 29, 2016
Options outstanding pursuant to stock-based compensation plans (in millions) | 2.9 |  | 3.4
Earnings from continuing operations exclude earnings of less than $0.1 and less than $0.1 for the nine months ended February 28, 2017 and February 29, 2016, respectively, attributable to participating Restricted Stock Units (“RSUs”). In a period in which the Company reports a discontinued operation, Earnings (loss) from continuing operations is used as the “control number” in determining whether potentially dilutive common shares are dilutive or anti-dilutive. Potentially dilutive shares outstanding pursuant to compensation plans that were not included in the diluted earnings per share calculation because they were anti-dilutive were 0.6 million as of February 28, 2017. A portion of the Company’s Restricted Stock Units ("RSUs") which are granted to employees participate in earnings through cumulative dividends which are payable and non-forfeitable to the employees upon vesting of the RSUs. Accordingly, the Company measures earnings per share based upon the lower of the Two-class method or the Treasury Stock method. Since, under the Two-class method, losses are not allocated to the participating securities, in periods of loss the Two-class method is not applicable. As of February 28, 2017, $39.5 remained available for future purchases of common shares under the current repurchase authorization of the Board of Directors (the "Board"). See Note 11, “Treasury Stock,” for a more complete description of the Company’s share buy-back program.

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