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Accounts Payable and Accrued Liabilities - Summary of Accounts Payable and Accrued Liabilities (Details) - CAD ($)
$ in Thousands
Dec. 31, 2020
Dec. 31, 2019
Subclassifications Of Assets Liabilities And Equities [Abstract]    
Trade payables $ 4,849 $ 20,228
Accrued and other liabilities 18,459 37,882
Accounts payable and accrued liabilities $ 23,308 $ 58,110