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- Schedule of Earnings Per Share, Basic and Diluted (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions | 3 Months Ended | 9 Months Ended
--- | --- | ---
Feb. 28, 2018 | Feb. 28, 2017 | Feb. 28, 2018 | Feb. 28, 2017
Earnings Per Share, Basic and Diluted [Abstract] |  |  |  |
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 | 0.0 | 0.1 | 0.0 | 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) | 0.0 | 0.0 | 0.0 | 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
Basic earnings (loss) per share: |  |  |  |
Earnings (loss) from continuing operations (in Dollars per share) | $ (1.41) | $ (0.45) | $ (1.59) | $ 0.37
Earnings (loss) from discontinued operations, net of tax (in Dollars per share) | 0.00 | 0.01 | 0.00 | 0.00
Net income (loss) (in Dollars per share) | (1.41) | (0.44) | (1.59) | 0.37
Diluted earnings (loss) per share: |  |  |  |
Earnings (loss) from continuing operations (in Dollars per share) | (1.41) | (0.45) | (1.59) | 0.36
Earnings (loss) from discontinued operations, net of tax (in Dollars per share) | 0.00 | 0.01 | 0.00 | 0.00
Net income (loss) (in Dollars per share) | $ (1.41) | $ (0.44) | $ (1.59) | $ 0.36

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