v3.26.3
Investments - Disclosure of reconciliation of changes in interests in joint ventures (Details) - USD ($)
$ in Thousands
 6 Months Ended 12 Months Ended
Jun. 30, 2026
Dec. 31, 2025
Jan. 31, 2026
Jan. 16, 2026
Disclosure of joint ventures [line items]        
Carrying amount of interest at the beginning of the period $ 21,522      
Dividends received from joint ventures (3,900)      
Carrying amount of interest at the end of the period 64,392 $ 21,522    
Cleanergy Solutions (Namibia) (Pty) Ltd        
Disclosure of joint ventures [line items]        
Percentage of voting equity interests acquired       51.00%
Total for all joint ventures        
Disclosure of joint ventures [line items]        
Carrying amount of interest at the beginning of the period 14,427      
Carrying amount of interest at the end of the period 28,320 14,427    
Jiangsu Andefu Ltd.        
Disclosure of joint ventures [line items]        
Percentage of voting equity interests acquired     25.00%  
Investments in equity accounted investees | Total for all joint ventures        
Disclosure of joint ventures [line items]        
Gross balance, at beginning of period 12,820 16,311    
Offset investment with shareholders loan, at beginning of period 1,606 495    
Carrying amount of interest at the beginning of the period 14,426 16,806    
Reversal prior year offset investment with shareholders loan (1,606) (495)    
Group's share of profit (loss) for the period 5,141 (1,655)    
Dividends received from joint ventures   (4,525)    
Movement shareholders loans to joint ventures 0 0    
Business combinations   2,089    
Transfer to assets held for sale   (1,232)    
Acquisitions 19,160      
Translation differences (392) 1,832    
Exit from the consolidation scope (9,783)      
Gross balance, at end of period 26,946 12,820    
Offset investment with shareholders loan, at end of period 1,374 1,606    
Carrying amount of interest at the end of the period 28,320 14,426    
Shareholders loans | Total for all joint ventures        
Disclosure of joint ventures [line items]        
Gross balance, at beginning of period 21,829 16,683    
Offset investment with shareholders loan, at beginning of period (1,606) (495)    
Carrying amount of interest at the beginning of the period 20,223 16,188    
Reversal prior year offset investment with shareholders loan 1,606 495    
Group's share of profit (loss) for the period 0 0    
Dividends received from joint ventures   0    
Movement shareholders loans to joint ventures 1,609 3,403    
Business combinations   0    
Transfer to assets held for sale   0    
Acquisitions 0      
Translation differences (934) 1,743    
Exit from the consolidation scope 0      
Gross balance, at end of period 22,504 21,829    
Offset investment with shareholders loan, at end of period (1,374) (1,606)    
Carrying amount of interest at the end of the period $ 21,130 $ 20,223