v3.26.1
Equity - Share capital (Details)
 12 Months Ended
Dec. 31, 2025
USD ($)
$ / shares
shares
Dec. 31, 2024
USD ($)
item
$ / shares
shares
Disclosure of classes of share capital [line items]    
Number of interim dividend payments declared | item   4
Dividends paid, per share | $ / shares $ 0.014 $ 0.013
Dividends paid, ordinary shares | $ $ 2,612,000 $ 9,758,000
Dividends paid to non-controlling interests | $ 12,740,000 2,917,000
Issue of share capital | $ $ 1,962,000 $ 1,962,000
Treasury shares 2,021,799 1,536,435
Ordinary shares    
Disclosure of classes of share capital [line items]    
Number of shares outstanding 186,860,517  
Par value per share | $ / shares $ 0.01 $ 0.01
Issue of share capital | $ $ 1,962,000 $ 1,962,000
Number of shares authorised 17,425,291  
Number of shares issued 188,882,316 188,882,316
Grupo Villar Mir SAU | Ordinary shares    
Disclosure of classes of share capital [line items]    
Number of shares outstanding 67,515,434  
Outstanding shares owned by main shareholders (as a percentage) 36.10%  
Cooper Creek Partners Management LLC | Ordinary shares    
Disclosure of classes of share capital [line items]    
Number of shares outstanding 14,921,946  
Outstanding shares owned by main shareholders (as a percentage) 8.00%  
Hosking Partners LLP [Member] | Ordinary shares    
Disclosure of classes of share capital [line items]    
Number of shares outstanding 10,633,729  
Outstanding shares owned by main shareholders (as a percentage) 6.00%  
Others | Ordinary shares    
Disclosure of classes of share capital [line items]    
Number of shares outstanding 95,811,207