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Intangible Assets - Additional Information (Details)
$ in Millions
12 Months Ended
Dec. 31, 2020
CAD ($)
Disclosure Of Intangible Assets [Line Items]  
Impairment $ 12.9
Pathway Rx Inc  
Disclosure Of Intangible Assets [Line Items]  
Estimated useful life of intangible assets 20 years
Sun 8 Holdings Inc  
Disclosure Of Intangible Assets [Line Items]  
Estimated useful life of intangible assets 15 years
Other Intellectual Property  
Disclosure Of Intangible Assets [Line Items]  
Estimated useful life of intangible assets 12 years