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EARNINGS PER COMMON SHARE | 12 Months Ended
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Sep. 30, 2025
Earnings Per Share [Abstract] |
EARNINGS PER COMMON SHARE | EARNINGS PER COMMON SHARE The following table presents information necessary to calculate basic and diluted net income (loss) per common share for the periods indicated:
| Year Ended September 30,
| 2025 |  | 2024 |  | 2023
Net income (loss) | $ | 145.2 |  |  | $ | (34.9) |  |  | $ | (380.1) |
Basic net income (loss) per common share: |  |  |  |  |
Weighted-average common shares outstanding during the period | 57.6 |  |  | 56.8 |  |  | 56.0 |
Basic net income (loss) per common share | $ | 2.52 |  |  | $ | (0.61) |  |  | $ | (6.79) |
Diluted net income (loss) per common share: |  |  |  |  |
Weighted-average common shares outstanding during the period | 57.6 |  |  | 56.8 |  |  | 56.0 |
Dilutive potential common shares | 1.1 |  |  | — |  |  | — |
Weighted-average number of common shares outstanding and dilutive potential common shares | 58.7 |  |  | 56.8 |  |  | 56.0 |
Diluted net income (loss) per common share | $ | 2.47 |  |  | $ | (0.61) |  |  | $ | (6.79) |
Antidilutive stock options outstanding | 0.5 |  |  | 0.4 |  |  | 0.4 |
Diluted average common shares used in the diluted net income per common share calculation for fiscal 2025 were 58.7 million, which included dilutive potential common shares of 1.1 million. Diluted average common shares used in the diluted net loss per common share calculation for fiscal 2024 and fiscal 2023 were 56.8 million and 56.0 million, respectively, which excluded potential common shares of 0.9 million and 0.4 million, respectively, because the effect of their inclusion would be anti-dilutive as the Company incurred a net loss for fiscal 2024 and 2023.

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