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REVENUE - Revenue by Metal (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2025	Mar. 31, 2024
Disaggregation of Revenue [Line Items]
Revenue	$ 316,618	$ 230,234
Gold
Disaggregation of Revenue [Line Items]
Revenue	228,079	183,990
Silver
Disaggregation of Revenue [Line Items]
Revenue	75,276	39,334
Lead
Disaggregation of Revenue [Line Items]
Revenue	11,051	8,462
Zinc
Disaggregation of Revenue [Line Items]
Revenue	366	576
Other
Disaggregation of Revenue [Line Items]
Revenue	$ 1,846	$ (2,128)

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