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Consolidated Statements of Comprehensive Income (Loss) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2020 | Dec. 31, 2019
Statement of comprehensive income [abstract] |  |
Net income (loss) | $ (125,327) | $ 116,366
Items that may be reclassified to income: |  |
Change in fair value of cash flow hedges (note 19) | 31,194 | (120,540)
Forward elements excluded from hedging relationships (note 19) | (35,775) | 30,571
Realized losses on foreign exchange hedges reclassified to revenue | 1,804 | 0
Items that will not be reclassified to income: |  |
Actuarial loss on defined benefit pension plans (note 21(a)) | (5,413) | (4,479)
Taxes on above items | (2,325) | 22,049
Other comprehensive loss | (10,515) | (72,399)
Comprehensive income (loss) | (135,842) | 43,967
Attributable to: |  |
Methanex Corporation shareholders | (167,193) | 15,368
Non-controlling interests (note 24) | $ 31,351 | $ 28,599

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