Derivative Financial Instruments - Summary of Provisionally Priced Sales (Details) $ in Thousands	Jun. 30, 2026 USD ($) oz $ / oz
Gold Concentrates Sales Agreements | 2025
Derivative instruments Settlement
Notional Amount Derivative | $	$ 68,029
Derivative average price | $ / oz	4,244
Outstanding Provisionally Priced Sales Consists of Gold | oz	16,030
Gold Concentrates Sales Agreements | 2027 and Thereafter
Derivative instruments Settlement
Notional Amount Derivative | $	$ 0
Derivative average price | $ / oz	0
Outstanding Provisionally Priced Sales Consists of Gold | oz	0
Copper Concentrates Sales Agreements | 2025
Derivative instruments Settlement
Notional Amount Derivative | $	$ 24,536
Derivative average price | $ / oz	6.07
Outstanding Provisionally Priced Sales Consists of Gold | oz	4,044,000
Copper Concentrates Sales Agreements | 2027 and Thereafter
Derivative instruments Settlement
Notional Amount Derivative | $	$ 0
Derivative average price | $ / oz	0
Outstanding Provisionally Priced Sales Consists of Gold | oz	0
Gold Concentrates Swap Contracts | 2025
Derivative instruments Settlement
Notional Amount Derivative | $	$ 23,895
Derivative average price | $ / oz	4,779
Outstanding Provisionally Priced Sales Consists of Gold | oz	5,000
Gold Concentrates Swap Contracts | 2027 and Thereafter
Derivative instruments Settlement
Notional Amount Derivative | $	$ 0
Derivative average price | $ / oz	0
Outstanding Provisionally Priced Sales Consists of Gold | oz	0
Copper Concentrates Swap Contracts | 2025
Derivative instruments Settlement
Notional Amount Derivative | $	$ 26,183
Derivative average price | $ / oz	5.94
Outstanding Provisionally Priced Sales Consists of Gold | oz	4,044,000
Copper Concentrates Swap Contracts | 2027 and Thereafter
Derivative instruments Settlement
Notional Amount Derivative | $	$ 0
Derivative average price | $ / oz	0
Outstanding Provisionally Priced Sales Consists of Gold | oz	0