Derivative Financial Instruments - Summary of Classification of Fair Value of Derivative Instruments (Details) - USD ($) $ in Thousands	Jun. 30, 2026	Dec. 31, 2025
Provisional gold and copper sales contracts
Fair value of the derivative instruments
Derivative asset	$ 317
Provisional gold and copper sales contracts | Level 2
Fair value of the derivative instruments
Derivative liability	3,322
Gold and copper swap contracts
Fair value of the derivative instruments
Derivative asset	3,711
Derivative liability	570
Gold and copper swap contracts | Level 2
Fair value of the derivative instruments
Derivative asset	3,711
Derivative liability	570
Provisional metal sales contracts
Fair value of the derivative instruments
Derivative asset	317	$ 1,103
Derivative liability	3,322	124
Provisional metal sales contracts | Level 2
Fair value of the derivative instruments
Derivative asset	$ 317	1,103
Derivative liability		$ 124