CAPITAL AND FINANCIAL RISK MANAGEMENT - Market Risk management (Details) $ in Thousands	12 Months Ended
Dec. 31, 2025 USD ($)
Metal Commodity Derivative
CAPITAL AND FINANCIAL RISK MANAGEMENT
Notional amount	$ 0
Interest Rate Risk
CAPITAL AND FINANCIAL RISK MANAGEMENT
Change in rate (as a percentage)	1.00%
Positive (negative) impact on Income before Income and Mining Taxes and on Equity assumptions of sensitivity analysis	$ 0
10.0% strengthening in U.S. Dollar
CAPITAL AND FINANCIAL RISK MANAGEMENT
Change in rate (as a percentage)	10.00%
10.0% weakening in U.S. Dollar
CAPITAL AND FINANCIAL RISK MANAGEMENT
Change in rate (as a percentage)	10.00%
10.0% weakening in U.S. Dollar \| Canadian dollar
CAPITAL AND FINANCIAL RISK MANAGEMENT
Positive (negative) impact on Income before Income and Mining Taxes and on Equity assumptions of sensitivity analysis	$ (8,048)
10.0% weakening in U.S. Dollar \| Australian dollar
CAPITAL AND FINANCIAL RISK MANAGEMENT
Positive (negative) impact on Income before Income and Mining Taxes and on Equity assumptions of sensitivity analysis	(3,316)
10.0% weakening in U.S. Dollar \| Euro
CAPITAL AND FINANCIAL RISK MANAGEMENT
Positive (negative) impact on Income before Income and Mining Taxes and on Equity assumptions of sensitivity analysis	(11,712)
10.0% weakening in U.S. Dollar \| Mexican peso
CAPITAL AND FINANCIAL RISK MANAGEMENT
Positive (negative) impact on Income before Income and Mining Taxes and on Equity assumptions of sensitivity analysis	$ 3,267

The percentage in exchange rates used to assess the sensitivity of income before income and mining taxes and equity.

No definition available.

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- Definition

The monetary upward or downward change in the relevant risk variable percentage used for sensitivity analysis of types of risk to which the entity is exposed. Used to calculate how profit or loss would have been affected by changes in the relevant risk variable that were reasonably possible as of the reporting date.

+ References

No definition available.

+ Details

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- Definition

Line items represent concepts included in a table. These concepts are used to disclose reportable information associated with members defined in one or many axes of the table.

+ References

No definition available.

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- Definition

The nominal or face amount of a financial instrument, used to calculate payments made on that instrument.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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