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Common Shares - Schedule of common shares (Details) - USD ($)
$ in Thousands
 12 Months Ended
Aug. 14, 2023
Feb. 21, 2023
Dec. 31, 2024
Dec. 31, 2023
Class of Stock        
Number of beginning balance     306,558,710  
Balance     $ 10,918 $ 41,505
Amount of issuance of shares under Registered Direct Offering (Note 13)     23,213 14,599
Exercise of warrant by Allseas       116
Shares issued (in shares) 4,150,000      
Shares issued       15,910
Exercise of stock options (Note 17)     463 77
Conversion of restricted share units (in shares)   5,000,000    
Conversion of restricted share units       30
Share purchase under Employee Share Purchase Plan (Note 17)     $ 39 $ 102
Number of ending balance     340,708,460 306,558,710
Balance     $ (17,118) $ 10,918
At-the -Market Equity Offering        
Class of Stock        
Shares issued (in shares)     3,251,588 0
Shares issued     $ 4,866  
Common Stock        
Class of Stock        
Number of beginning balance     306,558,710 266,812,131
Balance     $ 438,239 $ 332,882
Number of issuance of shares under Registered Direct Offering (Note 13) (in shares)     19,400,000 7,961,540
Amount of issuance of shares under Registered Direct Offering (Note 13)     $ 17,190 $ 11,420
Exercise of warrant by Allseas (in shares)       11,578,620
Exercise of warrant by Allseas       $ 70,016
Shares issued (in shares) 4,150,000     15,000,000
Shares issued       $ 15,910
Exercise of stock options (Note 17) (in shares)     715,772 120,000
Exercise of stock options (Note 17)     $ 1,891 $ 144
Conversion of restricted share units (in shares)     10,734,581 4,912,747
Conversion of restricted share units     $ 14,954 $ 7,720
Share purchase under Employee Share Purchase Plan (Note 17) (in shares)     47,809 173,672
Share purchase under Employee Share Purchase Plan (Note 17)     $ 77 $ 147
Number of ending balance     340,708,460 306,558,710
Balance     $ 477,217 $ 438,239
Common Stock | 2023 Registered Direct Offering        
Class of Stock        
Number of issuance of shares under Registered Direct Offering (Note 13) (in shares)     4,500,000 7,961,540
Amount of issuance of shares under Registered Direct Offering (Note 13)     $ 7,447 $ 11,420
Common Stock | 2024 Registered Direct Offering        
Class of Stock        
Number of issuance of shares under Registered Direct Offering (Note 13) (in shares)     14,900,000  
Amount of issuance of shares under Registered Direct Offering (Note 13)     $ 9,743  
Common Stock | At-the -Market Equity Offering        
Class of Stock        
Shares issued (in shares)     3,251,588  
Shares issued     $ 4,866