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Earnings per Share (Tables) | 6 Months Ended
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Oct. 31, 2025
Earnings Per Share [Abstract] |
Computation of basic earnings per common share under two-class method | The following table sets forth the computation of basic and diluted earnings per share under the two-class method.
| Three Months Ended October 31, |  | Six Months Ended October 31,
| 2025 |  | 2024 |  | 2025 |  | 2024
Net income (loss) | $ | 241.3 |  |  | $ | (24.5) |  |  | $ | 197.4 |  |  | $ | 160.5 |
Less: Net income (loss) allocated to participating securities | — |  |  | — |  |  | — |  |  | — |
Net income (loss) allocated to common stockholders | $ | 241.3 |  |  | $ | (24.5) |  |  | $ | 197.4 |  |  | $ | 160.5 |
Weighted-average common shares outstanding | 106.7 |  |  | 106.4 |  |  | 106.6 |  |  | 106.4 |
Add: Dilutive effect of stock options | — |  |  | — |  |  | — |  |  | — |
Weighted-average common shares outstanding – assuming dilution | 106.7 |  |  | 106.4 |  |  | 106.6 |  |  | 106.4 |
Net income (loss) per common share | $ | 2.26 |  |  | $ | (0.23) |  |  | $ | 1.85 |  |  | $ | 1.51 |
Net income (loss) per common share – assuming dilution | $ | 2.26 |  |  | $ | (0.23) |  |  | $ | 1.85 |  |  | $ | 1.51 |
Computation of diluted earnings per common share under two-class method | The following table sets forth the computation of basic and diluted earnings per share under the two-class method.
| Three Months Ended October 31, |  | Six Months Ended October 31,
| 2025 |  | 2024 |  | 2025 |  | 2024
Net income (loss) | $ | 241.3 |  |  | $ | (24.5) |  |  | $ | 197.4 |  |  | $ | 160.5 |
Less: Net income (loss) allocated to participating securities | — |  |  | — |  |  | — |  |  | — |
Net income (loss) allocated to common stockholders | $ | 241.3 |  |  | $ | (24.5) |  |  | $ | 197.4 |  |  | $ | 160.5 |
Weighted-average common shares outstanding | 106.7 |  |  | 106.4 |  |  | 106.6 |  |  | 106.4 |
Add: Dilutive effect of stock options | — |  |  | — |  |  | — |  |  | — |
Weighted-average common shares outstanding – assuming dilution | 106.7 |  |  | 106.4 |  |  | 106.6 |  |  | 106.4 |
Net income (loss) per common share | $ | 2.26 |  |  | $ | (0.23) |  |  | $ | 1.85 |  |  | $ | 1.51 |
Net income (loss) per common share – assuming dilution | $ | 2.26 |  |  | $ | (0.23) |  |  | $ | 1.85 |  |  | $ | 1.51 |
Computation of diluted earnings per common share under treasury stock method | The following table sets forth the computation of diluted earnings per share under the treasury stock method.
| Three Months Ended October 31, |  | Six Months Ended October 31,
| 2025 |  | 2024 |  | 2025 |  | 2024
Net income (loss) | $ | 241.3 |  |  | $ | (24.5) |  |  | $ | 197.4 |  |  | $ | 160.5 |
Weighted-average common shares outstanding – assuming dilution: |  |  |  |  |  |  |
Weighted-average common shares outstanding | 106.7 |  |  | 106.4 |  |  | 106.6 |  |  | 106.4 |
Add: Dilutive effect of stock options | — |  |  | — |  |  | — |  |  | — |
Add: Dilutive effect of restricted shares, restricted stock units, and performance units | 0.2 |  |  | 0.3 |  |  | 0.3 |  |  | 0.2 |
Weighted-average common shares outstanding – assuming dilution | 106.9 |  |  | 106.7 |  |  | 106.9 |  |  | 106.6 |
Net income (loss) per common share – assuming dilution | $ | 2.26 |  |  | $ | (0.23) |  |  | $ | 1.85 |  |  | $ | 1.51 |

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