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Net Income Per Share (Tables) | 9 Months Ended
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Jun. 30, 2025
Net Income Per Share [Abstract] |
Schedule of Earnings Per Share, Basic and Diluted | The following table sets forth the computation of basic and diluted net income per share (in thousands, except per share data):
|  | Three months ended June 30, |  | Nine months ended June 30,
|  | 2025 |  | 2024 |  | 2025 |  | 2024
Numerator |  |  |  |  |  |  |  |
Net income |  | $ | 189,912 |  |  | $ | 144,079 |  |  | $ | 501,887 |  |  | $ | 401,482 |
Denominator |  |  |  |  |  |  |  |
Weighted average shares outstanding — basic |  | 57,772 |  |  | 58,584 |  |  | 57,989 |  |  | 58,832 |
Dilutive effect of common shares from stock options and restricted stock units |  | 720 |  |  | 563 |  |  | 784 |  |  | 629 |
Weighted average shares outstanding — diluted |  | 58,492 |  |  | 59,147 |  |  | 58,773 |  |  | 59,461 |
Basic net income per share |  | $ | 3.29 |  |  | $ | 2.46 |  |  | $ | 8.65 |  |  | $ | 6.82 |
Diluted net income per share |  | $ | 3.25 |  |  | $ | 2.44 |  |  | $ | 8.54 |  |  | $ | 6.75 |

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- Definition Net Income Per Share [Abstract] + References No definition available. + Details
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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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