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SUPPLEMENTAL FINANCIAL INFORMATION - Lease expense (Details) - CAD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2023
Dec. 31, 2022
SUPPLEMENTAL FINANCIAL INFORMATION    
Accretion expense on lease liabilities $ (27) $ (32)
Expenses relating to short-term leases (5,753) (6,095)
Expenses relating to non-short term low-value leases 0 (1)
Lease related expense-gross $ (5,780) $ (6,128)