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Foreign Exchange | 12 Months Ended
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Dec. 31, 2020
Effects Of Changes In Foreign Exchange Rates [Abstract] |
Foreign Exchange | FOREIGN EXCHANGE
| Years Ended December 31
| 2020 |  | 2019 |
Unrealized foreign exchange loss - intercompany notes (1) | $ | 31,617 |  | $ | — |
Unrealized foreign exchange gain - long-term notes | (22,385) |  | (62,753) |
Realized foreign exchange (gain) loss | (544) |  | 966 |
Foreign exchange loss (gain) | $ | 8,688 |  | $ | (61,787) |
(1)During 2020, a series of intercompany notes totaling US$751.0 million were issued from a Canadian subsidiary to a U.S. subsidiary. These notes are eliminated upon consolidation within the Statement of Financial Position and are revalued at the relevant foreign exchange rate at each period end. Foreign exchange gains or losses incurred within the Canadian subsidiary are recognized in unrealized foreign exchange gain or loss whereas those within the U.S. subsidiary are recognized in other comprehensive income.

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- Definition Effects Of Changes In Foreign Exchange Rates [Abstract] + References No definition available. + Details
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- Definition The entire disclosure for the effect of changes in foreign exchange rates. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 21 -IssueDate 2020-01-01 -Section Disclosure -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=21&code=ifrs-tx-2020-en-r&doctype=Standard&dita_xref=IAS21_g51-57_TI -URIDate 2020-01-01 + Details
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