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Consolidated Statements of Changes in Equity - CAD ($) $ in Thousands | Total | Shareholders’ capital | Contributed surplus | Accumulated other comprehensive income | Deficit
--- | --- | --- | --- | --- | ---
Beginning balance at Dec. 31, 2018 | $ 3,055,424 | $ 5,701,516 | $ 19,137 | $ 667,874 | $ (3,333,103)
Vesting of share awards | 0 | 17,319 | (17,319) |  |
Share-based compensation | 15,894 | 17,319 | 15,894 |  |
Comprehensive loss | (124,109) |  |  | (111,650) | (12,459)
Ending balance at Dec. 31, 2019 | 2,947,209 | 5,718,835 | 17,712 | 556,224 | (3,345,562)
Vesting of share awards | 0 | 10,583 | (10,583) |  |
Share-based compensation | 7,216 | 10,583 | 7,216 |  |
Comprehensive loss | (2,376,212) |  |  | 62,752 | (2,438,964)
Ending balance at Dec. 31, 2020 | $ 578,213 | $ 5,729,418 | $ 14,345 | $ 618,976 | $ (5,784,526)

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