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INVESTMENT IN AN ASSOCIATED COMPANY - Disclosure of detailed information about associates (Details) - CAD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Disclosure of associates [line items]    
Aggregate assets $ 102,227 $ 114,852
Aggregate liabilities (3,732) (6,347)
Income (loss) for the year (13,820) $ 62,118
IG Copper, LLC [Member]    
Disclosure of associates [line items]    
Aggregate assets 0  
Aggregate liabilities 0  
Income (loss) for the year $ 0  
The Company's ownership % 19.90% 19.90%
The Company's share of income (loss) for the year $ 98,919