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INCOME AND MINING TAXES - Non Operating Losses (Details) $ in Thousands	Dec. 31, 2020 USD ($)
USA
INCOME TAXES
Net-operating losses	$ 167,784
Mexico
INCOME TAXES
Net-operating losses	37,117
Canada
INCOME TAXES
Net-operating losses	35,888
Argentina
INCOME TAXES
Net-operating losses	$ 41,522

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Amount of non operating loss carryforward, before tax effects, available to reduce future taxable income under enacted tax laws.

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