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Expenses (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2020 | Dec. 31, 2019
Analysis of income and expense [abstract] |  |
Cost of sales | $ 2,107,533 | $ 2,570,840
Selling and distribution | 498,126 | 498,738
Administrative expenses | 106,593 | 74,486
Total expenses by function | 2,712,252 | 3,144,064
Cost of raw materials and purchased methanol | 1,705,387 | 2,169,027
Ocean freight and other logistics | 328,635 | 334,650
Employee expenses, including share-based compensation | 246,779 | 184,171
Other expenses | 74,322 | 112,089
Cost of sales and operating expenses | 2,355,123 | 2,799,937
Depreciation and amortization | 357,129 | 344,127
Total expenses by nature | $ 2,712,252 | $ 3,144,064

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- 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 2020-01-01 -Paragraph 99 -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2020-en-r&anchor=para_99&doctype=Standard -URIDate 2020-01-01 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 1 -IssueDate 2020-01-01 -Paragraph 103 -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2020-en-r&anchor=para_103&doctype=Standard -URIDate 2020-01-01 + Details
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