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Note 8 - Income Tax (Tables) | 12 Months Ended
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Dec. 31, 2020
Major components of tax expense (income) [abstract] |
Disclosure of detailed information about income tax expense (benefit) [text block] |
|  | Year ended December 31, |
(all amounts in thousands of U.S. dollars) |  | 2020 |  |  | 2019 |  |  | 2018 |
Current tax |  |  | (121,048 | ) |  |  | (299,692 | ) |  |  | (343,104 | )
Deferred tax |  |  | 97,898 |  |  |  | 97,240 |  |  |  | 113,897 |
Tax charge |  |  | (23,150 | ) |  |  | (202,452 | ) |  |  | (229,207 | )
Disclosure of difference between income before tax and the theoretical amount that would arise using tax rate in each country [text block] |
|  | Year ended December 31, |
(all amounts in thousands of U.S. dollars) |  | 2020 |  |  | 2019 |  |  | 2018 |
(Loss) Income before income tax |  |  | (619,267 | ) |  |  | 933,710 |  |  |  | 1,103,107 |
Less Impairment charges (non deductible) |  |  | 622,402 |  |  |  | - |  |  |  | - |
Income before income tax without impairment charges |  |  | 3,135 |  |  |  | 933,710 |  |  |  | 1,103,107 |
Tax calculated at the tax rate in each country |  |  | 21,052 |  |  |  | (186,752 | ) |  |  | (207,422 | )
Effect of currency translation on tax base |  |  | (72,936 | ) |  |  | (53,296 | ) |  |  | (77,552 | )
Changes in the tax rates |  |  | (958 | ) |  |  | 13 |  |  |  | (1,824 | )
Utilization of previously unrecognized tax losses |  |  | 98 |  |  |  | 547 |  |  |  | - |
Tax revaluation, withholding tax and others |  |  | 29,594 |  |  |  | 37,036 |  |  |  | 57,591 |
Tax charges |  |  | (23,150 | ) |  |  | (202,452 | ) |  |  | (229,207 | )

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- Definition The disclosure of detailed information about income tax expense (benefit). + References No definition available. + Details
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- Definition The disclosure of detailed information about the differences between income before tax and the theoretical amount that would arise using the tax rate in each country. + References No definition available. + Details
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