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Note 1 - Segment Information - Reportable Operating Segments (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018
Disclosure of operating segments [line items] |  |  |
IFRS - Net Sales | $ 5,146,734 | $ 7,294,055 | $ 7,658,588
Operating (loss) income | (663,071) | 832,391 | 871,813
Income (loss) before equity in earnings of non-consolidated companies and income tax | (728,066) | 851,674 | 909,113
Equity in earnings of non-consolidated companies | 108,799 | 82,036 | 193,994
(Loss) income before income tax | (619,267) | 933,710 | 1,103,107
Capital expenditures | 193,322 | 350,174 | 349,473
Depreciation and amortization | 678,806 | 539,521 | 664,357
Tubes [member] |  |  |
Disclosure of operating segments [line items] |  |  |
IFRS - Net Sales | 4,844,000 | 6,870,000 | 7,233,000
Management view - operating income (loss) | (277,000) | 857,000 | 702,000
Difference in cost of sales | (138,000) | (105,000) | 112,000
Differences in depreciation and amortization | 1,000 | (1,000) | (34,000)
Differences in selling, general and administrative expenses | (2,000) | (1,000) | (2,000)
Differences in other operating income (expenses), net | (200,000) | 6,000 |
Operating (loss) income | (616,000) | 756,000 | 778,000
Capital expenditures | 189,000 | 338,000 | 346,000
Depreciation and amortization | 661,000 | 523,000 | 645,000
All other segments [member] |  |  |
Disclosure of operating segments [line items] |  |  |
IFRS - Net Sales | 303,000 | 424,000 | 426,000
Management view - operating income (loss) | (50,000) | 73,000 | 81,000
Difference in cost of sales | 4,000 | 3,000 | 7,000
Differences in depreciation and amortization | (1,000) |  |
Differences in selling, general and administrative expenses |  | 1,000 | 6,000
Differences in other operating income (expenses), net |  |  |
Operating (loss) income | (47,000) | 77,000 | 94,000
Capital expenditures | 4,000 | 12,000 | 3,000
Depreciation and amortization | 18,000 | 17,000 | 19,000
Reportable segments [member] |  |  |
Disclosure of operating segments [line items] |  |  |
IFRS - Net Sales | 5,147,000 | 7,294,000 | 7,659,000
Management view - operating income (loss) | (327,000) | 930,000 | 783,000
Difference in cost of sales | (134,000) | (102,000) | 119,000
Differences in depreciation and amortization |  | (1,000) | (34,000)
Differences in selling, general and administrative expenses | (2,000) |  | 4,000
Differences in other operating income (expenses), net | (200,000) | 6,000 |
Operating (loss) income | (663,000) | 833,000 | 872,000
Financial income (expense), net | (65,000) | 19,000 | 37,000
Income (loss) before equity in earnings of non-consolidated companies and income tax | (728,000) | 852,000 | 909,000
Equity in earnings of non-consolidated companies | 109,000 | 82,000 | 194,000
(Loss) income before income tax | (619,000) | 934,000 | 1,103,000
Capital expenditures | 193,000 | 350,000 | 349,000
Depreciation and amortization | $ 679,000 | $ 540,000 | $ 664,000

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