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Earnings per Share (Tables) | 12 Months Ended
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Dec. 31, 2021
Earnings Per Share [Abstract] |
Reconciliation of information used in computing basic and diluted earnings per share | The following table sets forth a reconciliation of the information used in computing basic and diluted earnings per share:
| Years Ended December 31,
| 2021 |  | 2020 |  | 2019
Net earnings | $ | 1,123,818 |  |  | $ | 683,451 |  |  | $ | 677,918 |
Basic earnings per common share: |  |  |  |  |
Net earnings | $ | 7.81 |  |  | $ | 4.74 |  |  | $ | 4.67 |
Weighted average basic shares outstanding | 143,923,000 |  |  | 144,050,000 |  |  | 145,198,000 |
Diluted earnings per common share: |  |  |  |  |
Net earnings | $ | 7.74 |  |  | $ | 4.70 |  |  | $ | 4.61 |
Weighted average diluted shares outstanding | 145,273,000 |  |  | 145,393,000 |  |  | 146,992,000 |
Reconciliation of share amounts used in computing earnings per share | The following table is a reconciliation of the share amounts used in computing earnings per share:
| Years Ended December 31,
| 2021 |  | 2020 |  | 2019
Weighted average shares outstanding - Basic | 143,923,000 |  |  | 144,050,000 |  |  | 145,198,000 |
Dilutive effect of assumed exercise of SARs and vesting of performance shares and RSUs | 1,350,000 |  |  | 1,343,000 |  |  | 1,794,000 |
Weighted average shares outstanding - Diluted | 145,273,000 |  |  | 145,393,000 |  |  | 146,992,000 |

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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 -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=124432515&loc=d3e3550-109257 + Details
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- Definition Tabular disclosure of the weighted average number of shares used in calculating basic net earnings per share (or unit) and diluted earnings per share (or unit). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=124432515&loc=d3e3550-109257 + Details
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