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Earnings (Loss) Per Share | 9 Months Ended
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Feb. 28, 2018
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 February 28, | Nine months ended February 28,
| 2018 |  | 2017 | 2018 |  | 2017
Earnings (loss) from continuing operations attributable to Class A and Common Shares | $ | (49.2 | ) |  | $ | (15.5 | ) | $ | (55.8 | ) |  | $ | 12.9 |
Earnings (loss) from discontinued operations attributable to Class A and Common Shares, net of tax | — |  |  | 0.1 |  | — |  |  | 0.0 |
Net income (loss) attributable to Class A and Common Shares | $ | (49.2 | ) |  | $ | (15.4 | ) | $ | (55.8 | ) |  | $ | 12.9 |
Weighted average Shares of Class A Stock and Common Stock outstanding for basic earnings (loss) per share (in millions) | 34.9 |  |  | 34.8 |  | 35.1 |  |  | 34.6 |
Dilutive effect of Class A Stock and Common Stock potentially issuable pursuant to stock-based compensation plans (in millions) | — |  |  | — |  | — |  |  | 0.7 |
Adjusted weighted average Shares of Class A Stock and Common Stock outstanding for diluted earnings (loss) per share (in millions) | 34.9 |  |  | 34.8 |  | 35.1 |  |  | 35.3 |
Earnings (loss) per share of Class A Stock and Common Stock: |  |  |  |  |  |  |  |  |  |
Basic earnings (loss) per share: |  |  |  |  |  |  |  |  |  |
Earnings (loss) from continuing operations | $ | (1.41 | ) |  | $ | (0.45 | ) | $ | (1.59 | ) |  | $ | 0.37 |
Earnings (loss) from discontinued operations, net of tax | $ | — |  |  | $ | 0.01 |  | $ | — |  |  | $ | 0.00 |
Net income (loss) | $ | (1.41 | ) |  | $ | (0.44 | ) | $ | (1.59 | ) |  | $ | 0.37 |
Diluted earnings (loss) per share: |  |  |  |  |  |  |  |  |  |
Earnings (loss) from continuing operations | $ | (1.41 | ) |  | $ | (0.45 | ) | $ | (1.59 | ) |  | $ | 0.36 |
Earnings (loss) from discontinued operations, net of tax | $ | — |  |  | $ | 0.01 |  | $ | — |  |  | $ | 0.00 |
Net income (loss) | $ | (1.41 | ) |  | $ | (0.44 | ) | $ | (1.59 | ) |  | $ | 0.36 |
The following table sets forth Options outstanding pursuant to stock-based compensation plans as of the dates indicated:
| February 28, 2018 |  | February 28, 2017
Options outstanding pursuant to stock-based compensation plans (in millions) | 3.1 |  | 2.9
Earnings from continuing operations exclude earnings of less than $0.1 for the nine months ended February 28, 2017, attributable to participating Restricted Stock Units (“RSUs”). In a period in which the Company reports a discontinued operation, Earnings (loss) from continuing operations attributable to Class A and Common Shares is used as the “control number” in determining whether potentially dilutive common shares are dilutive or anti-dilutive. There were 1.5 million potentially anti-dilutive shares outstanding pursuant to compensation plans as of February 28, 2018. A portion of the Company’s Restricted Stock Units ("RSUs") which are granted to employees participate in earnings through cumulative dividends payable 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, 2018, $13.4 remained available for future purchases of common shares under the repurchase authorization of the Board of Directors (the "Board") in effect on that date. See Note 11, “Treasury Stock,” for a more complete description of the Company’s share buy-back program and see Note 17, "Subsequent Events" for information concerning a subsequent increase in the share repurchase authorization.

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- Definition The entire disclosure for earnings per share. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -URI http://asc.fasb.org/topic&trid=2144383 + Details
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