Derivative Financial Instruments - Summary of Mark-to-Market Gain (Losses) on Derivative Instruments (Details) - USD ($) $ in Thousands |
3 Months Ended | 6 Months Ended | ||
|---|---|---|---|---|
Jun. 30, 2026 |
Jun. 30, 2025 |
Jun. 30, 2026 |
Jun. 30, 2025 |
|
| Derivative [Line Items] | ||||
| Fair value adjustments, net | $ 6,390 | $ (122) | $ 6,987 | $ 85 |
| Gold Concentrates Sales Agreements | ||||
| Derivative [Line Items] | ||||
| Provisional gain (loss) on derivatives and commodity contracts | (2,648) | (122) | (4,058) | 85 |
| Copper Concentrates Sales Agreements | ||||
| Derivative [Line Items] | ||||
| Provisional gain (loss) on derivatives and commodity contracts | 5,944 | 0 | 6,842 | 0 |
| Gold Concentrates Swap Contracts | ||||
| Derivative [Line Items] | ||||
| Provisional gain (loss) on derivatives and commodity contracts | 8,267 | 0 | 9,211 | 0 |
| Copper Concentrates Swap Contracts | ||||
| Derivative [Line Items] | ||||
| Provisional gain (loss) on derivatives and commodity contracts | $ (5,173) | $ 0 | $ (5,008) | $ 0 |