v3.26.1
OTHER LIABILITIES - Narrative (Details) - USD ($)
$ in Thousands
 3 Months Ended 6 Months Ended 12 Months Ended
Mar. 16, 2026
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
Dec. 31, 2025
Other Liabilities [Line Items]            
Finance fee expense   $ 142 $ 0 $ 6,368 $ 0  
Current portion of liability   $ 0   $ 0   $ 400
Weighted average remaining lease term   2 years   2 years    
Weighted average discount rate (as a percent)   8.42%   8.42%    
To be paid, year one   $ 1,800   $ 1,800    
To be paid, year two   2,900   2,900    
To be paid, year three   2,900   2,900    
To be paid, year four   2,900   2,900    
To be paid, year five   2,900   2,900    
To be paid, thereafter   100   100    
Restricted share units            
Other Liabilities [Line Items]            
Share-based payment liability, current portion   1,900   1,900   1,900
NSR Royalty            
Other Liabilities [Line Items]            
Principal amount $ 250,000          
Amount received 225,000          
Amount allocated to advancement of technical and permitting work 25,000          
Additional amount following initial disbursement $ 25,000          
Metal production to be issued (as percent) 1.50%          
Financial liability fair value option elected       3,700   0
Company repaid amount   400   600    
Finance fee expense       6,400    
NSR Royalty | Maximum            
Other Liabilities [Line Items]            
Metal production to be issued (as percent) 3.00%          
Sliver Purchase Agreement | Convertible loans            
Other Liabilities [Line Items]            
Total other liabilities   $ 0   $ 0   $ 2,700