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Earnings Per Share | 9 Months Ended
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Sep. 30, 2022
Earnings Per Share [Abstract] |
Earnings Per Share | Earnings Per Share Basic earnings per share is computed by dividing net income attributable to Werner by the weighted average number of common shares outstanding during the period. Diluted earnings per share is computed by dividing net income attributable to Werner by the weighted average number of common shares outstanding plus the effect of dilutive potential common shares outstanding during the period using the treasury stock method. Dilutive potential common shares include outstanding restricted stock awards. Performance awards are excluded from the calculation of dilutive potential common shares until the threshold performance conditions have been satisfied. There are no differences in the numerators of our computations of basic and diluted earnings per share for any periods presented. The computation of basic and diluted earnings per share is shown below (in thousands, except per share amounts).
| Three Months Ended September 30, |  | Nine Months Ended September 30,
| 2022 |  | 2021 |  | 2022 |  | 2021
Net income attributable to Werner | $ | 55,051 |  |  | $ | 63,761 |  |  | $ | 181,090 |  |  | $ | 182,285 |
Weighted average common shares outstanding | 63,386 |  |  | 67,475 |  |  | 64,433 |  |  | 67,776 |
Dilutive effect of stock-based awards | 396 |  |  | 359 |  |  | 386 |  |  | 360 |
Shares used in computing diluted earnings per share | 63,782 |  |  | 67,834 |  |  | 64,819 |  |  | 68,136 |
Basic earnings per share | $ | 0.87 |  |  | $ | 0.94 |  |  | $ | 2.81 |  |  | $ | 2.69 |
Diluted earnings per share | $ | 0.86 |  |  | $ | 0.94 |  |  | $ | 2.79 |  |  | $ | 2.68 |

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