v3.26.1
Strategic Alliance with Allseas and Affiliates - Narratives (Details)
$ in Thousands
3 Months Ended 6 Months Ended
Jul. 02, 2026
shares
May 11, 2026
USD ($)
Mar. 30, 2026
D
Jun. 30, 2026
USD ($)
Jun. 30, 2025
USD ($)
Jun. 30, 2026
USD ($)
Jun. 30, 2025
USD ($)
Mar. 29, 2026
Strategic Alliance with Allseas and Affiliates                
Number of trading days | D     20          
Charge on Allseas settlement   $ (7,900)   $ (7,868)   $ (7,868)    
Share price discount     10.00%          
Deferred liability charges       36,100   36,100    
Exploration and evaluation expenses       56,088 $ 10,496 $ 69,345 $ 20,011  
Allseas Group S.A | Related party                
Strategic Alliance with Allseas and Affiliates                
Percentage of engineering costs, project management costs               50.00%
Percentage of additional negotiated cost   50.00%            
Percentage of costs repayment   50.00%            
Allseas Group S.A | Related party | Subsequent Event [Member]                
Strategic Alliance with Allseas and Affiliates                
Shares issued from ATM (in shares) | shares 7,305,567              
Project Management Technology Services                
Strategic Alliance with Allseas and Affiliates                
Exploration and evaluation expenses       $ 4,700 $ 900      
Project Management Technology Services | Allseas Group S.A | Related party                
Strategic Alliance with Allseas and Affiliates                
Initial term   5 years