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Note 6 - Other operating income and expenses (Details Textual) - USD ($) $ in Thousands |  |  | 12 Months Ended
--- | --- | --- | ---
Nov. 01, 2021 | May 13, 2021 | Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020
Disclosure of detailed information about other operating income and expenses [line items] |  |  |  |  |  |
Tax credit from PIS and COFINS recognized in other operating income | [1] |  |  |  | $ 35,568 | $ 8,164
Tax credit from PIS and COFINS recognized in financial results |  |  |  |  | $ 18,000 |
Geneva Structural Tubes LLC (“Geneva”) | MKK USA Inc |  |  |  |  |  |
Disclosure of detailed information about other operating income and expenses [line items] |  |  |  |  |  |
Percentage of voting equity interests divested |  | 100.00% |  |  |  |
Aggregate selling price of subsidiary |  | $ 24,300 |  |  |  |
Gain on sale of subsidiaries |  | $ 6,800 |  |  |  |
Brazil | Subsidiaries |  |  |  |  |  |
Disclosure of detailed information about other operating income and expenses [line items] |  |  |  |  |  |
Tax expense (credit) from PIS and COFINS |  |  | $ 53,000 |  |  |
Tax credit from PIS and COFINS recognized in other operating income |  |  | 36,000 |  |  |
Tax credit from PIS and COFINS recognized in financial results |  |  | 17,000 |  |  |
Tax charge related to gain from tax claims of PIS and COFINS |  |  | $ 12,000 |  |  |
[1] | On May 13, 2021, the Brazilian Supreme Court issued a final judgment which confirmed that the methodology for calculating PIS and COFINS (Federal Social Contributions on Gross Revenues) tax claims to which taxpayers are entitled to, should exclude from its base the total output of ICMS, calculated on a gross basis. This decision led to a recognition of approximately $53 million tax credit in Brazilian subsidiaries, out of which $36 million were recognized in other operating income and $17 million in financial results (impacting in Finance Income and Finance Cost). In addition the tax charge related to this gain amounted to $12 million.

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- Definition The amount of consideration paid or received in respect of both obtaining and losing control of subsidiaries or other businesses. [Refer: Subsidiaries [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 7 -IssueDate 2022-03-24 -Paragraph 40 -Subparagraph a -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=7&code=ifrs-tx-2022-en-r&anchor=para_40_a&doctype=Standard -URIDate 2022-03-24 + Details
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- Definition The gains (losses) recognised in association with the loss of control over a subsidiary, which are attributable to the former controlling interest. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 12 -IssueDate 2022-03-24 -Paragraph 19 -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=12&code=ifrs-tx-2022-en-r&anchor=para_19&doctype=Standard -URIDate 2022-03-24 + Details
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- Definition The amount of tax credit from Program of Social Integration (“PIS”) and Contribution for Financing of Social Security (“COFINS”) recognized in other operating income during the reporting period. + References No definition available. + Details
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