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Net Income Per Share (Tables) | 9 Months Ended
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Jun. 30, 2023
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,
|  | 2023 |  | 2022 |  | 2023 |  | 2022
Numerator |  |  |  |  |  |  |  |
Net income |  | $ | 88,976 |  |  | $ | 83,019 |  |  | $ | 242,814 |  |  | $ | 232,814 |
Denominator |  |  |  |  |  |  |  |
Weighted average shares outstanding — basic |  | 59,977 |  |  | 59,965 |  |  | 60,133 |  |  | 60,450 |
Dilutive effect of common shares from stock options and restricted stock units |  | 337 |  |  | 495 |  |  | 330 |  |  | 895 |
Weighted average shares outstanding — diluted |  | 60,314 |  |  | 60,460 |  |  | 60,463 |  |  | 61,345 |
Basic net income per share |  | $ | 1.48 |  |  | $ | 1.38 |  |  | $ | 4.04 |  |  | $ | 3.85 |
Diluted net income per share |  | $ | 1.48 |  |  | $ | 1.37 |  |  | $ | 4.02 |  |  | $ | 3.80 |

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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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