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Basic and Diluted Earnings per Share (Tables) | 12 Months Ended
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Dec. 31, 2020
Earnings Per Share [Abstract] |
Schedule of Earnings Per Share, Basic and Diluted | The following table reconciles the numerator and the denominator of the basic and diluted per share computations for earnings attributable to shareholders.
|  |  | Net earnings attributable to shareholders |  |  | Weighted average shares |  |  | Earnings per share |
| 2020 |  |  |  |  |  |  |  |  |  |  |  |
| Basic earnings attributable to shareholders |  | $ | 696,140 |  |  |  | 168,333 |  |  | $ | 4.14 |
| Effect of dilutive potential common shares |  |  | — |  |  |  | 2,563 |  |  |  | — |
| Diluted earnings attributable to shareholders |  | $ | 696,140 |  |  |  | 170,896 |  |  | $ | 4.07 |
| 2019 |  |  |  |  |  |  |  |  |  |  |  |
| Basic earnings attributable to shareholders |  | $ | 590,395 |  |  |  | 170,899 |  |  | $ | 3.45 |
| Effect of dilutive potential common shares |  |  | — |  |  |  | 3,310 |  |  |  | — |
| Diluted earnings attributable to shareholders |  | $ | 590,395 |  |  |  | 174,209 |  |  | $ | 3.39 |
| 2018 |  |  |  |  |  |  |  |  |  |  |  |
| Basic earnings attributable to shareholders |  | $ | 618,199 |  |  |  | 174,133 |  |  | $ | 3.55 |
| Effect of dilutive potential common shares |  |  | — |  |  |  | 3,700 |  |  |  | — |
| Diluted earnings attributable to shareholders |  | $ | 618,199 |  |  |  | 177,833 |  |  | $ | 3.48 |

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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=6371337&loc=d3e3550-109257 + Details
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