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Derivatives (Details) $ in Thousands	9 Months Ended
	Sep. 30, 2025 USD ($) $ / t $ / oz oz t
Embedded Derivative [Line Items]
Unsettled sales contracts value	$ 30,438
Gold
Embedded Derivative [Line Items]
Under contract | oz	1,643
Average forward price | $ / oz	3,448
Unsettled sales contracts value	$ 5,665
Silver
Embedded Derivative [Line Items]
Under contract | oz	493,509
Average forward price | $ / oz	40.17
Unsettled sales contracts value	$ 19,824
Copper
Embedded Derivative [Line Items]
Under contract | t	81
Average forward price | $ / t	9,778
Unsettled sales contracts value	$ 792
Lead
Embedded Derivative [Line Items]
Under contract | t	448
Average forward price | $ / t	1,956
Unsettled sales contracts value	$ 876
Zinc
Embedded Derivative [Line Items]
Under contract | t	1,176
Average forward price | $ / t	2,790
Unsettled sales contracts value	$ 3,281

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