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Net Income Per Share | 9 Months Ended
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Jun. 30, 2024
Net Income Per Share [Abstract] |
Net Income Per Share | Net Income Per Share Basic net income per share is computed by dividing net income by the weighted average number of common shares outstanding during the period. Diluted net income per share is computed by dividing net income by the weighted average number of common and dilutive common stock equivalent shares outstanding during the period. The Company's nonvested restricted stock units do not have nonforfeitable rights to dividends or dividend equivalents and are not considered participating securities that should be included in the computation of earnings per share under the two-class method. 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,
|  | 2024 |  | 2023 |  | 2024 |  | 2023
Numerator |  |  |  |  |  |  |  |
Net income |  | $ | 144,079 |  |  | $ | 88,976 |  |  | $ | 401,482 |  |  | $ | 242,814 |
Denominator |  |  |  |  |  |  |  |
Weighted average shares outstanding — basic |  | 58,584 |  |  | 59,977 |  |  | 58,832 |  |  | 60,133 |
Dilutive effect of common shares from stock options and restricted stock units |  | 563 |  |  | 337 |  |  | 629 |  |  | 330 |
Weighted average shares outstanding — diluted |  | 59,147 |  |  | 60,314 |  |  | 59,461 |  |  | 60,463 |
Basic net income per share |  | $ | 2.46 |  |  | $ | 1.48 |  |  | $ | 6.82 |  |  | $ | 4.04 |
Diluted net income per share |  | $ | 2.44 |  |  | $ | 1.48 |  |  | $ | 6.75 |  |  | $ | 4.02 |
Anti-dilutive stock-based awards excluded from the calculations of diluted earnings per share were not material for the three and nine months ended June 30, 2024 and 2023.

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- Definition The entire disclosure for earnings per share. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 260 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (c) -Publisher FASB -URI https://asc.fasb.org//1943274/2147482662/260-10-50-1 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 260 -Name Accounting Standards Codification -Publisher FASB -URI https://asc.fasb.org//260/tableOfContent Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 260 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Publisher FASB -URI https://asc.fasb.org//1943274/2147482662/260-10-50-2 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Topic 260 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 3 -Publisher FASB -URI https://asc.fasb.org//1943274/2147482662/260-10-50-3 + Details
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