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Earnings Per Share (Tables) | 12 Months Ended
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Sep. 30, 2025
Earnings Per Share [Abstract] |
Schedule of Earnings Per Share, Basic and Diluted | The computations of basic and diluted earnings per share are as follows:
| Year Ended September 30,
| 2025 |  | 2024 |  | 2023
| (In millions, except share and per share amounts)
Numerator: |  |  |  |  |
Net income | $ | 167.9 |  |  | $ | 203.4 |  |  | $ | 166.9 |
Denominator: |  |  |  |  |
Weighted average common shares outstanding — basic | 50,872,335 |  |  | 50,426,040 |  |  | 49,986,526 |
Dilutive effect of stock-based compensation | 187,517 |  |  | 367,914 |  |  | 137,587 |
Total weighted average shares outstanding — diluted | 51,059,852 |  |  | 50,793,954 |  |  | 50,124,113 |
Basic net income per common share | $ | 3.30 |  |  | $ | 4.03 |  |  | $ | 3.34 |
Diluted net income per common share | $ | 3.29 |  |  | $ | 4.00 |  |  | $ | 3.33 |

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- Definition Tabular disclosure of an entity's basic and diluted earnings per share calculations, including a reconciliation of numerators and denominators of the basic and diluted per-share computations for income from continuing operations. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 260 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482662/260-10-50-1 + Details
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