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Stockholders' equity and dividend payment, Stockholders' equity (Details) | 12 Months Ended
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Dec. 31, 2021 Vote $ / shares shares | Dec. 31, 2020 shares
Common Stock [Abstract] |  |
Number of vote per common stock | Vote | 1 |
Common Stock [Member] |  |
Stockholders' Equity [Abstract] |  |
Issued, Beginning balance (in shares) | 170,798,328 | 146,819,401
Restricted stock issued (in shares) | 841,696 | 601,530
Conversion of convertible bonds (in shares) |  | 23,377,397
Retirement of treasury shares (in shares) | (5,513,254) |
Issued, Ending balance (in shares) | 166,126,770 | 170,798,328
Par value (in dollars per share) | $ / shares | $ 0.01 |
Number of shares authorized for issue (in shares) | 250,000,000 |
Preference Stock [Member] |  |
Stockholders' Equity [Abstract] |  |
Par value (in dollars per share) | $ / shares | $ 0.01 |

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- Definition The increase (decrease) in the number of shares of equity resulting from the conversion of convertible instruments during the period. + References No definition available. + Details
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- Definition The nominal value per share. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 1 -IssueDate 2021-01-01 -Paragraph 79 -Subparagraph a -Clause iii -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2021-en-r&anchor=para_79_a_iii&doctype=Standard -URIDate 2021-03-24 + Details
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