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REVENUE
12 Months Ended
Dec. 31, 2020
Disclosure of revenue from contracts with customers [Abstract]  
REVENUE REVENUE
Years ended December 31 2020 2019
Gold bullion and doré sales $ 750,457  $ 461,463 
Concentrate sales 105,351  144,861 
Other (1)
(2,719) 526 
$ 853,089  $ 606,850 
(1)Other revenue includes: changes in the fair value of concentrate trade receivables due to changes in silver and base metal prices; and silver and copper by-product revenue arising from the production and sale of gold bullion and doré.