v3.26.1
Distributed Operations - Summary of Carrying Value of Assets and Liabilities (Details) - USD ($)
$ in Thousands
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Oct. 03, 2023
Dec. 31, 2022
Disclosure of Distributed Operations [line Items]          
Cash and cash equivalents $ 61,134 $ 85,543 $ 122,293   $ 194,471
Receivables, prepaids and deposits 369 3,631      
Property, plant and equipment 9,374 8,988      
Exploration and evaluation assets 341,014 343,794      
TOTAL ASSETS 1,099,780 1,131,223      
Other liabilities (1,461) (21)      
TOTAL LIABILITIES (282,847) (240,293)      
Net assets distributed upon separation $ 1,099,780 $ 1,131,223      
Lithium Americas          
Disclosure of Distributed Operations [line Items]          
Cash and cash equivalents       $ 275,499  
Receivables, prepaids and deposits       16,877  
Property, plant and equipment       131,182  
Exploration and evaluation assets       770  
Investment in Green Technology Metals       3,590  
Investment in Ascend Elements       8,582  
TOTAL ASSETS       436,500  
Accounts payable and accrued liabilities       (17,157)  
Current portion of long-term liabilities       (808)  
GM transaction derivative liability       (370)  
Decommissioning provision       (601)  
Other liabilities       (4,617)  
TOTAL LIABILITIES       (23,553)  
Net assets distributed upon separation       $ 412,947