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Business Acquisitions - Additional Information (Details)
$ in Millions
Dec. 31, 2020
CAD ($)
Disclosure of detailed information about business combination [line items]  
Goodwill and Intangible assets expected to be deductible for tax purposes $ 35.8
Aggregated individually immaterial business combinations  
Disclosure of detailed information about business combination [line items]  
Provision for claims outstanding $ 6.1