v3.26.1
Financial Instruments and Financial Risk Management - Narrative (Details)
 3 Months Ended 12 Months Ended
Mar. 31, 2026
USD ($)
CAD ($)
Mar. 31, 2025
USD ($)
Dec. 31, 2025
USD ($)
CAD ($)
Financial Instruments and Financial Risk Management      
Transfers out of Level 1 into Level 2 of fair value hierarchy, assets held at end of reporting period $ 0   $ 0
Transfers out of Level 2 into Level 1 of fair value hierarchy, assets held at end of reporting period 0   0
Transfers into Level 3 of fair value hierarchy, assets 0   0
Transfers out of Level 3 of fair value hierarchy, assets 0   0
Fair value gain (loss) on financial asset - FID (836,000) $ 741,000  
Fair value gain from foreign exchange translation effects (2,354,000) 20,000  
Working capital 139,500,000   $ 147,600,000
SWA      
Financial Instruments and Financial Risk Management      
Fair value gain (loss) on financial asset - FID (100,000)    
Decrease in fair value of financial asset (100,000)    
ETX      
Financial Instruments and Financial Risk Management      
Fair value gain (loss) on financial asset - FID (700,000)    
Decrease in fair value of financial asset (700,000)    
Investment in Aqualung      
Financial Instruments and Financial Risk Management      
Fair value gain from foreign exchange translation effects $ 91,000    
Fair Value gain on equity financing transaction   $ 3,000,000  
USD      
Financial Instruments and Financial Risk Management      
Conversion rate 1.39424   1.371
Reasonably possible change In US Dollar relative to Canadian Dollar 10.00%   10.00%
Change in comprehensive loss $ 13,400,000   $ 14,200,000