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Computation of Earnings Per Share (Tables) | 9 Months Ended
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Sep. 30, 2023
Earnings Per Share [Abstract] |
Schedule Of Basic And Diluted Earnings Per Share Calculations | The table below sets forth the calculation of basic and diluted income per share for the periods indicated (in thousands, except per share data).
|  | Three Months Ended |  | Nine Months Ended
|  | September 30, |  | September 30,
|  | 2023 |  | 2022 |  | 2023 |  | 2022
Numerator: |  |  |  |  |  |  |  |
Net income used for calculating basic and diluted income per share |  | $ | 180,009 |  |  | $ | 173,545 |  |  | $ | 673,835 |  |  | $ | 550,985 |
Denominator: |  |  |  |  |  |  |  |
Weighted average common shares used in the calculation of basic income per share |  | 78,923 |  |  | 79,259 |  |  | 79,220 |  | 80,516
Dilutive effect of outstanding awards associated with stock-based compensation plans (1) |  | 597 |  |  | 800 |  |  | 642 |  | 857
Shares used in the calculation of diluted income per share |  | 79,520 |  |  | 80,059 |  |  | 79,862 |  | 81,373
Basic income per share |  | $ | 2.28 |  |  | $ | 2.19 |  |  | $ | 8.51 |  |  | $ | 6.84 |
Diluted income per share |  | $ | 2.26 |  |  | $ | 2.17 |  |  | $ | 8.44 |  |  | $ | 6.77 |
(1)Certain outstanding awards associated with stock-based compensation plans were not included in the computation of diluted income per share because the effect would have been anti-dilutive. These anti-dilutive outstanding awards associated with stock-based compensation plans totaled approximately 0.1 million for the three and nine months ended September 30, 2023 and 2022.

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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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