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Earnings Per Share | 6 Months Ended
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Mar. 31, 2025
Earnings Per Share [Abstract] |
Earnings Per Share | Note 4. Earnings per share Basic earnings per share is computed by dividing net earnings available to common stockholders by the weighted-average number of shares of common stock outstanding for the period. Diluted earnings per share reflects the weighted-average number of shares outstanding after consideration of the dilutive effect of stock options, restricted stock, and performance stock units. The following is a reconciliation of net earnings to basic earnings per share and diluted earnings per share:
|  | Three Months Ended March 31, |  |  | Six Months Ended March 31, |
|  | 2025 |  |  | 2024 |  |  | 2025 |  |  | 2024 |
Numerator: |  |  |  |  |  |  |  |  |  |  |  |
Net earnings |  | $ | 108,949 |  |  | $ | 97,556 |  |  | $ | 196,040 |  |  | $ | 187,600 |
Denominator: |  |  |  |  |  |  |  |  |  |  |  |
Basic shares outstanding |  |  | 59,432 |  |  |  | 60,427 |  |  |  | 59,323 |  |  |  | 60,223 |
Dilutive effect of stock options; restricted and performance stock |  |  | 1,912 |  |  |  | 1,938 |  |  |  | 1,935 |  |  |  | 1,883 |
Diluted shares outstanding |  |  | 61,344 |  |  |  | 62,365 |  |  |  | 61,258 |  |  |  | 62,106 |
Income per common share: |  |  |  |  |  |  |  |  |  |  |  |
Basic earnings per share |  | $ | 1.83 |  |  | $ | 1.61 |  |  | $ | 3.30 |  |  | $ | 3.12 |
Diluted earnings per share |  | $ | 1.78 |  |  | $ | 1.56 |  |  | $ | 3.20 |  |  | $ | 3.02 |
The following stock option grants and restricted stock awards were outstanding but were excluded from the computation of diluted earnings per share because their inclusion would have been anti-dilutive:
|  | Three Months Ended March 31, |  |  | Six Months Ended March 31, |
|  | 2025 |  |  | 2024 |  |  | 2025 |  |  | 2024 |
Restricted stock and option awards |  |  | 21 |  |  |  | 14 |  |  |  | 10 |  |  |  | 37 |
Weighted-average price |  | $ | 193.09 |  |  | $ | 122.38 |  |  | $ | 193.09 |  |  | $ | 131.03 |
The weighted-average shares of common stock outstanding for basic and diluted earnings per share included the weighted-average treasury stock shares held for deferred compensation obligations of the following:
|  | Three Months Ended March 31, |  |  | Six Months Ended March 31, |
|  | 2025 |  |  | 2024 |  |  | 2025 |  |  | 2024 |
Weighted-average treasury stock shares held for deferred compensation obligations |  |  | 30 |  |  |  | 54 |  |  |  | 35 |  |  |  | 54 |

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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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