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Earnings (Loss) Per Share | 9 Months Ended
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Feb. 28, 2023
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 28,
| 2023 | 2022 | 2023 | 2022
Net income (loss) attributable to Class A and Common Stockholders | $ | (19.2) |  |  | $ | (15.3) |  |  | $ | 10.6 |  |  | $ | 28.6 |
Weighted average Shares of Class A Stock and Common Stock outstanding for basic earnings (loss) per share (in millions) |  | 33.7 |  |  |  | 34.6 |  |  |  | 34.2 |  |  | 34.6 |
Dilutive effect of Class A Stock and Common Stock potentially issuable pursuant to stock-based compensation plans (in millions) |  | — |  |  |  | — |  |  |  | 0.9 |  |  |  | 1.0 |  |
Adjusted weighted average Shares of Class A Stock and Common Stock outstanding for diluted earnings (loss) per share (in millions) |  | 33.7 |  |  |  | 34.6 |  |  |  | 35.1 |  |  | 35.6 |
Earnings (loss) per share of Class A Stock and Common Stock: |  |  |  |  |  |  |  |  |  |  |  |
Basic | $ | (0.57) |  |  | $ | (0.44) |  |  | $ | 0.31 |  |  | $ | 0.83 |
Diluted | $ | (0.57) |  |  | $ | (0.44) |  |  | $ | 0.30 |  |  | $ | 0.80 |
Anti-dilutive shares pursuant to stock-based compensation plans |  | 0.7 |  |  |  | 0.8 |  |  |  | 0.6 |  |  |  | 1.8 |  |
The following table sets forth options outstanding pursuant to stock-based compensation plans as of the dates indicated:
| February 28, 2023 |  | February 28, 2022
Options outstanding pursuant to stock-based compensation plans (in millions) | 3.3 |  | 4.6
As of February 28, 2023, $28.2 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 13, Treasury Stock, and Note 20, Subsequent Events, for a more complete description of the Company’s share buy-back program.

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