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Financial Instruments - Summary of Fair Value Measurements of Long-term Debt, Derivative Warrant Liabilities and Contingent Consideration (Details) - Recurring Measurements - CAD ($)
$ in Thousands
Dec. 31, 2020
Dec. 31, 2019
Derivative Warrant Liabilities    
Disclosure Of Financial Instruments [Line Items]    
Financial liabilities $ 428  
Contingent Consideration    
Disclosure Of Financial Instruments [Line Items]    
Financial liabilities   $ 32,501
Level 3 | Derivative Warrant Liabilities    
Disclosure Of Financial Instruments [Line Items]    
Financial liabilities $ 428  
Level 3 | Contingent Consideration    
Disclosure Of Financial Instruments [Line Items]    
Financial liabilities   $ 32,501