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EARNINGS PER SHARE | 12 Months Ended
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Dec. 31, 2021
EARNINGS PER SHARE |
EARNINGS PER SHARE | NOTE 3 - EARNINGS PER SHARE The following table sets forth the computation of basic and diluted earnings per share: ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Year Ended December 31,
​ |  | 2021 |  | 2020 |  | 2019
Numerator: |  | ​ |  |  | ​ |  |  | ​ |
Net income | ​ | $ | 276,466 | ​ | $ | 206,115 | ​ | $ | 293,109
Denominator (shares in 000's): | ​ |  |  | ​ |  |  | ​ |  |
Basic weighted average shares outstanding | ​ |  | 59,309 | ​ |  | 59,633 | ​ |  | 61,960
Effect of dilutive securities - Stock options and awards | ​ |  | 753 | ​ |  | 615 | ​ |  | 698
Diluted weighted average shares outstanding | ​ |  | 60,062 | ​ |  | 60,248 | ​ |  | 62,658
Basic earnings per share | ​ | $ | 4.66 | ​ | $ | 3.46 | ​ | $ | 4.73
Diluted earnings per share | ​ | $ | 4.60 | ​ | $ | 3.42 | ​ | $ | 4.68
​ For the years ended December 31, 2021, 2020 and 2019, common shares subject to equity-based awards of 2,949, 615,302 and 524,110, respectively, were excluded from the computation of diluted earnings per share because the effect of their exercise would be anti-dilutive.

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