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Note 19 - Cash and Cash Equivalents and Other Investments (Tables) | 12 Months Ended
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Dec. 31, 2020
Disclosure of Cash and Cash Equivalents and Other Investments [Abstract] |
Detailed disclosure of cash and cash equivalents and other investments [text block] |
|  |  | Year ended December 31, |
(all amounts in thousands of U.S. dollars) |  | 2020 |  |  | 2019 |
Cash and cash equivalents |  |  |  |  |  |  |  |
Cash at banks |  |  | 117,807 |  |  |  | 118,314 |
Liquidity funds |  |  | 98,183 |  |  |  | 1,166,697 |
Short – term investments |  |  | 368,691 |  |  |  | 269,288 |
|  |  | 584,681 |  |  |  | 1,554,299 |
Other investments - current |  |  |  |  |  |  |  |
Fixed income (time-deposit, zero coupon bonds, commercial papers) |  |  | 763,697 |  |  |  | 65,874 |
Bonds and other fixed income |  |  | 108,791 |  |  |  | 144,502 |
|  |  | 872,488 |  |  |  | 210,376 |
Other investments - Non-current |  |  |  |  |  |  |  |
Bonds and other fixed income |  |  | 239,422 |  |  |  | 18,012 |
Others |  |  | 7,660 |  |  |  | 6,922 |
|  |  | 247,082 |  |  |  | 24,934 |

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