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Consolidated Statements of Changes in Equity - USD ($)
$ in Thousands
Total
Share capital
Treasury stock
Contributed surplus
Accumulated other comprehensive loss
Deficit
Total equity attributable to shareholders of the Company
Non-controlling interests
Balance beginning of year at Dec. 31, 2020   $ 3,144,644 $ (11,452) $ 2,638,008 $ (21,822) $ (2,103,206)   $ 40,873
Shares issued upon exercise of share options, for cash   1,738            
Shares issued upon exercise of performance share units   1,202            
Transfer of contributed surplus on exercise of options   684            
Shares issued to the public, net of share issuance costs   11,411            
Shares issued on acquisition of subsidiary   65,647            
Purchase of treasury stock     0          
Shares redeemed upon exercise of restricted share units     1,163 (1,163)        
Share-based payment arrangements       8,461        
Shares redeemed upon exercise of performance share units       (1,202)        
Transfer to share capital on exercise of options       (684)        
Non-reciprocal capital contribution to Deva       (27,961)       27,961
Other comprehensive (loss) earnings for the year attributable to shareholders of the Company $ 917       917      
Net loss attributable to shareholders of the Company (136,020)         (136,020)    
(Loss) earnings attributable to non-controlling interests 314             314
Contributions from non-controlling interests               409
Balance end of year at Dec. 31, 2021 3,639,922 3,225,326 (10,289) 2,615,459 (20,905) (2,239,226) $ 3,570,365 69,557
Shares issued upon exercise of share options, for cash   4,438            
Shares issued upon exercise of performance share units   2,256            
Transfer of contributed surplus on exercise of options   1,787            
Shares issued to the public, net of share issuance costs   7,837            
Shares issued on acquisition of subsidiary   0            
Purchase of treasury stock     (13,969)          
Shares redeemed upon exercise of restricted share units     3,804 (3,804)        
Share-based payment arrangements       10,600        
Shares redeemed upon exercise of performance share units       (2,256)        
Transfer to share capital on exercise of options       (1,787)        
Non-reciprocal capital contribution to Deva       0       0
Other comprehensive (loss) earnings for the year attributable to shareholders of the Company (21,379)       (21,379)      
Net loss attributable to shareholders of the Company (353,824)         (353,824)    
(Loss) earnings attributable to non-controlling interests (73,029)             (73,029)
Contributions from non-controlling interests               272
Balance end of year at Dec. 31, 2022 $ 3,200,868 $ 3,241,644 $ (20,454) $ 2,618,212 $ (42,284) $ (2,593,050) $ 3,204,068 $ (3,200)