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Earnings per Share | 3 Months Ended
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Mar. 31, 2022
Earnings Per Share [Abstract] |
Earnings Per Share | 18. Earnings per Share The following table sets forth a reconciliation of the information used in computing basic and diluted earnings per share:
|  |  | Three Months Ended March 31,
|  |  |  |  | 2022 |  | 2021
Net earnings |  |  |  |  | $ | 226,153 |  |  | $ | 232,769 |
Basic earnings per common share: |  |  |  |  |  |  |
Net earnings |  |  |  |  | $ | 1.57 |  |  | $ | 1.62 |
Weighted average shares outstanding |  |  |  |  | 144,087,000 |  |  | 143,765,000 |
Diluted earnings per common share: |  |  |  |  |  |  |
Net earnings |  |  |  |  | $ | 1.56 |  |  | $ | 1.61 |
Weighted average shares outstanding |  |  |  |  | 145,329,000 |  |  | 144,938,000 |
The following table is a reconciliation of the share amounts used in computing earnings per share:
|  |  | Three Months Ended March 31,
|  |  |  |  | 2022 |  | 2021
Weighted average shares outstanding - Basic |  |  |  |  | 144,087,000 |  |  | 143,765,000 |
Dilutive effect of assumed exercise of SARs and vesting of performance shares and RSUs |  |  |  |  | 1,242,000 |  |  | 1,173,000 |
Weighted average shares outstanding - Diluted |  |  |  |  | 145,329,000 |  |  | 144,938,000 |
Diluted earnings per share amounts are computed using the weighted average number of common shares outstanding and, if dilutive, potential common shares outstanding during the period. Potential common shares consist of the incremental common shares issuable upon the exercise of SARs and vesting of performance shares and RSUs, as determined using the treasury stock method. The weighted average number of anti-dilutive potential common shares excluded from the calculation above were approximately 58,000 and 88,000 for the three months ended March 31, 2022 and 2021, respectively.

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