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Income Taxes - Schedule of Comprehensive Income before Income Tax, Domestic and Foreign (Details) - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2020 | Dec. 31, 2019
Income Tax Examination [Line Items] |  |
Income (loss) before income taxes | $ 240,364 | $ (95,815)
Current income tax recovery (expense) | 34,344 | (64,970)
Deferred income tax recovery (expense) | 44,801 | 35,943
Recovery of (provision for) income taxes | 79,145 | (29,027)
Domestic |  |
Income Tax Examination [Line Items] |  |
Income (loss) before income taxes | 133,757 | (55,507)
Current income tax recovery (expense) | 54,251 | (63,120)
Deferred income tax recovery (expense) | (12,552) | 14,351
Foreign |  |
Income Tax Examination [Line Items] |  |
Income (loss) before income taxes | 106,607 | (40,308)
Current income tax recovery (expense) | (19,907) | (1,850)
Deferred income tax recovery (expense) | $ 57,353 | $ 21,592

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