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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 | Basic and diluted earnings per share for the fiscal years ended September 30 are calculated as follows:
| 2025 |  | 2024 |  | 2023
| (In thousands, except per share data)
Basic Earnings Per Share |  |  |  |  |
Net income | $ | 1,198,754 |  |  | $ | 1,042,895 |  |  | $ | 885,862 |
Less: Income allocated to participating securities | 487 |  |  | 553 |  |  | 542 |
Net income available to common shareholders | $ | 1,198,267 |  |  | $ | 1,042,342 |  |  | $ | 885,320 |
Basic weighted average shares outstanding | 158,943 |  |  | 152,508 |  |  | 145,121 |
Net income per share — Basic | $ | 7.54 |  |  | $ | 6.83 |  |  | $ | 6.10 |
Diluted Earnings Per Share |  |  |  |  |
Net income available to common shareholders | $ | 1,198,267 |  |  | $ | 1,042,342 |  |  | $ | 885,320 |
Effect of dilutive shares | — |  |  | — |  |  | — |
Net income available to common shareholders | $ | 1,198,267 |  |  | $ | 1,042,342 |  |  | $ | 885,320 |
Basic weighted average shares outstanding | 158,943 |  |  | 152,508 |  |  | 145,121 |
Dilutive shares | 1,630 |  |  | 158 |  |  | 45 |
Diluted weighted average shares outstanding | 160,573 |  |  | 152,666 |  |  | 145,166 |
Net income per share — Diluted | $ | 7.46 |  |  | $ | 6.83 |  |  | $ | 6.10 |

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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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