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Summary of Significant Accounting Policies - Additional Information (Details) - CAD ($)
$ in Thousands
Mar. 31, 2020
Apr. 01, 2019
Disclosure Of Significant Accounting Policies [Abstract]    
Weighted average lessee's incremental borrowing rate applied to lease liabilities recognised at date of initial application of IFRS 16   4.16%
Disclosure of expected impact of initial application of new standards or interpretations [line items]    
Right-of-use assets $ 11,492 $ 6,509
Lease liabilities $ 13,232 $ 6,668