SUPPLEMENTAL CASH FLOW INFORMATION - Non-Cash Items in Other (Expense) Income (Details) - USD ($) $ in Thousands |
3 Months Ended | 6 Months Ended | ||
|---|---|---|---|---|
Jun. 30, 2025 |
Jun. 30, 2024 |
Jun. 30, 2025 |
Jun. 30, 2024 |
|
| Other Significant Noncash Transactions [Line Items] | ||||
| Gain (loss) on fair value measurement | $ 700 | $ 1,600 | $ 300 | $ 4,300 |
| Other | (794) | 79 | (749) | 94 |
| Total non-cash items included in other (expense) income | (3,718) | (2,169) | (21,282) | 2,236 |
| Warrant Liability | ||||
| Other Significant Noncash Transactions [Line Items] | ||||
| Gain (loss) on fair value measurement | 709 | 1,645 | 275 | 4,275 |
| Convertible Loans | ||||
| Other Significant Noncash Transactions [Line Items] | ||||
| Gain (loss) on fair value measurement | 765 | 3,030 | (673) | 9,145 |
| Gold Prepay - gold price derivative | ||||
| Other Significant Noncash Transactions [Line Items] | ||||
| Loss on sales | (2,412) | (2,478) | (10,674) | (5,976) |
| Silver Purchase Agreement - silver price derivative | ||||
| Other Significant Noncash Transactions [Line Items] | ||||
| Loss on sales | $ (1,986) | $ (4,445) | $ (9,461) | $ (5,302) |