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Financial Instruments (Details) - 12 months ended Dec. 31, 2022
$ in Thousands, $ in Thousands
CAD ($)
USD ($)
Financial Instruments    
Undiscounted contractual amount due out of surplus cash of subsidiary $ 56,980 $ 42,070
Difference between the carrying amount of the loan payable and the amount the Group would be contractually required to pay at maturity $ 49,556  
Bottom of range | Credit risk    
Financial Instruments    
Average contractual credit period for trade receivables 25 days  
Top of range | Credit risk    
Financial Instruments    
Minimum expected repayment period of undiscounted contractual due 11 years  
Average contractual credit period for trade receivables 45 days  
Average contractual credit period for sales 180 days