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Note 2 - Cost of Sales - Components of Cost of Sales (Details) - USD ($) $ in Thousands | 12 Months Ended |  |  |
--- | --- | --- | --- | ---
Dec. 31, 2019 | Dec. 31, 2018 | Dec. 31, 2017 | Jan. 01, 2019 | Jan. 01, 2018 | Jan. 01, 2017
Statement Line Items [Line Items] |  |  |  |  |  |
Inventories | $ 2,265,880 | $ 2,524,341 |  | $ 2,524,341 | $ 2,368,304 | $ 1,563,889
Increase in inventory due to business combinations | 52,966 |  |  |  |  |
Raw materials, energy, consumables and other | 2,709,629 | 3,400,396 | 2,794,503 |  |  |
Services and fees | 222,415 | 275,130 | 244,035 |  |  |
Labor cost | 870,261 | 855,040 | 778,408 |  |  |
Depreciation of property, plant and equipment | 428,791 | 432,497 | 383,490 |  |  |
Amortization of intangible assets | 5,948 | 8,220 | 18,621 |  |  |
Depreciation of right-of-use assets | 28,727 |  |  |  |  |
Maintenance expenses | 284,758 | 185,782 | 183,370 |  |  |
Allowance for obsolescence | 29,138 | 25,457 | (12,917) |  |  |
Taxes | 100,738 | 133,308 | 18,542 |  |  |
Other | 115,663 | 119,507 | 88,823 |  |  |
Cost of sales including discontinued operations | 4,849,034 | 5,435,337 | 4,496,875 |  |  |
Less: Inventories at the end of the year | (2,265,880) | (2,524,341) | (2,368,304) |  |  |
From discontinued operations |  |  | (7,403) |  |  |
Cost of sales | $ 5,107,495 | $ 5,279,300 | $ 3,685,057 |  |  |

X
- Definition The amount of costs relating to expenses directly or indirectly attributed to the goods or services sold, which may include, but are not limited to, costs previously included in the measurement of inventory that has now been sold, unallocated production overheads and abnormal amounts of production costs of inventories. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 1 -IssueDate 2019-01-01 -Paragraph 99 -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2019-en-r&anchor=para_99&doctype=Standard -URIDate 2019-03-27 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 1 -IssueDate 2019-01-01 -Paragraph 103 -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2019-en-r&anchor=para_103&doctype=Standard -URIDate 2019-03-27 + Details
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Period Type: | duration

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- Definition The amount of current inventories. [Refer: Inventories] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 2 -IssueDate 2019-01-01 -Paragraph 36 -Subparagraph b -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=2&code=ifrs-tx-2019-en-r&anchor=para_36_b&doctype=Standard -URIDate 2019-03-27 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 1 -IssueDate 2019-01-01 -Paragraph 54 -Subparagraph g -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2019-en-r&anchor=para_54_g&doctype=Standard -URIDate 2019-03-27 Reference 3: http://www.xbrl.org/2003/role/exampleRef -Name IAS -Number 1 -IssueDate 2019-01-01 -Paragraph 68 -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2019-en-r&anchor=para_68&doctype=Standard -URIDate 2019-03-27 + Details
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- Definition Amount of allowance for obsolescence attributable to cost of sales. + References No definition available. + Details
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- Definition Amount of amortization of intangible assets attributable to cost of sales. + References No definition available. + Details
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- Definition Amount of depreciation of property, plant and equipment attributable to cost of sales. + References No definition available. + Details
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- Definition Amount of expense attributable to cost of sales from discontinued operations. + References No definition available. + Details
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- Definition Amount of cost of sales including discontinued operations. + References No definition available. + Details
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- Definition Amount of labor cost attributable to cost of sales. + References No definition available. + Details
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- Definition Amount of maintenance expenses attributable to cost of sales. + References No definition available. + Details
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- Definition Amount of other expense attributable to cost of sales. + References No definition available. + Details
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- Definition Amount of raw materials, energy, consumables and other expense attributable to cost of sales. + References No definition available. + Details
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- Definition Amount of services and fees expense attributable to cost of sales. + References No definition available. + Details
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- Definition Amount of tax expense attributable to cost of sales. + References No definition available. + Details
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- Definition Represents the cost of sales impact of depreciation of right-of-use assets during the period. + References No definition available. + Details
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- Definition Represents the amount of increase in inventory during the period due to business combinations. + References No definition available. + Details
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- Definition The amount of current inventories including discontinued operations. + References No definition available. + Details
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- References No definition available. + Details
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