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Lease Obligations - Summary of Minimum Lease Payments (Details)
$ in Thousands
Dec. 31, 2020
CAD ($)
Disclosure Of Maturity Analysis Of Finance Lease Payments Receivable [Line Items]  
Minimum lease payments $ 1,607
Amounts representing finance charges (167)
Net minimum lease payments 1,440
Less Than One Year  
Disclosure Of Maturity Analysis Of Finance Lease Payments Receivable [Line Items]  
Minimum lease payments 490
One to Three Years  
Disclosure Of Maturity Analysis Of Finance Lease Payments Receivable [Line Items]  
Minimum lease payments 895
Three to Five Years  
Disclosure Of Maturity Analysis Of Finance Lease Payments Receivable [Line Items]  
Minimum lease payments $ 222