v3.26.1
SUPPLEMENTAL CASH FLOW INFORMATION - Schedule of Non-Cash Items in Other (Expense) Income (Details) - USD ($)
$ in Thousands
 3 Months Ended 6 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
Other Significant Noncash Transactions [Line Items]        
Loss on offtake liability $ (4,800) $ 0 $ (4,800) $ 0
Other 0 (12) 1 33
Non-cash items included in other expense (11,363) (2,936) (44,332) (20,500)
Silver Purchase Agreement        
Other Significant Noncash Transactions [Line Items]        
Gain (loss) on sales (9,290) (1,986) (36,092) (9,461)
2026 Gold Prepay        
Other Significant Noncash Transactions [Line Items]        
Gain (loss) on sales 22,000 0 29,893 0
NSR Royalty        
Other Significant Noncash Transactions [Line Items]        
Gain (loss) on sales (24,039) 0 (31,663) 0
Convertible loans        
Other Significant Noncash Transactions [Line Items]        
Gain (loss) on fair value measurement 0 765 (3,463) (673)
Orion Gold Prepay - derivative        
Other Significant Noncash Transactions [Line Items]        
Gain (loss) on sales 0 (2,412) (3,377) (10,674)
Warrant Liability        
Other Significant Noncash Transactions [Line Items]        
Gain (loss) on fair value measurement $ 4,766 $ 709 $ 5,169 $ 275