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Earnings per share (Tables) | 6 Months Ended
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Jun. 30, 2023
Earnings Per Share [Abstract] |
Schedule of computations of basic and diluted earnings per share | The computation of basic and diluted EPS for the three and six months ended June 30, 2023 and 2022 were as follows:
| Three Months Ended June 30, |  | Six Months Ended June 30, |  |
| 2023 |  | 2022 |  | 2023 |  | 2022 |  |  |  |
Net income (loss) for the computation of basic EPS | $ | 492,894 |  |  | $ | 339,826 |  |  | $ | 924,999 |  |  | $ | (1,661,004) |  |  |  |  |
Weighted average ordinary shares outstanding—basic | 231,318,582 |  |  | 240,367,450 |  |  | 235,321,261 |  |  | 240,008,449 |  |  |  |  |
Basic EPS | $ | 2.13 |  |  | $ | 1.41 |  |  | $ | 3.93 |  |  | $ | (6.92) |  |  |  |  |
| Three Months Ended June 30, |  | Six Months Ended June 30, |  |
| 2023 |  | 2022 |  | 2023 |  | 2022 |  |  |  |
Net income (loss) for the computation of diluted EPS | $ | 492,894 |  |  | $ | 339,826 |  |  | $ | 924,999 |  |  | $ | (1,661,004) |  |  |  |  |
Weighted average ordinary shares outstanding—diluted | 232,866,512 |  |  | 242,264,561 |  |  | 237,204,222 |  |  | 240,008,449 |  |  |  |  |
Diluted EPS | $ | 2.12 |  |  | $ | 1.40 |  |  | $ | 3.90 |  |  | $ | (6.92) |  |  |  |  |
Schedule of computation of ordinary shares outstanding, excluding unvested restricted stock | The computations of ordinary shares outstanding, excluding shares of unvested restricted stock, as of June 30, 2023 and December 31, 2022 were as follows:
| June 30, 2023 |  | December 31, 2022
| Number of ordinary shares
Ordinary shares issued | 250,347,345 |  |  | 250,347,345 |
Treasury shares | (17,841,852) |  |  | (4,416,070) |
Ordinary shares outstanding | 232,505,493 |  |  | 245,931,275 |
Shares of unvested restricted stock | (4,233,182) |  |  | (4,837,602) |
Ordinary shares outstanding, excluding shares of unvested restricted stock | 228,272,311 |  |  | 241,093,673 |

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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 -Topic 260 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org//1943274/2147482662/260-10-50-1 + Details
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