v3.26.1
Financial obligations - Movement of the debt excluding interest (Details) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Feb. 04, 2025
Disclosure of Financial obligations [Line Items]        
Beginning balance $ 626,782 $ 706,580 $ 738,534  
Cost of debt issuance (15,657) 0 0  
Amortization of debt issuance costs in results, note 28(a) 2,062 2,122 2,082  
Derecognition of bonds issuance Senior Notes, at 5.50%, note 28(a) $ 3,289 0 0  
Percentage of derecognition of bonds issuance senior notes 5.50%      
Payments $ (6,750) (79,602) (31,034)  
Reversal of the amortized cost of the syndicated loan 0 0 (85)  
Amortization of debt issuance costs in results, note 28(a) 0 700 155  
Additions and estimate changes 2,640 497 1,137  
Accretion expense, note 28(a) 667 623 266  
Payments (3,366) (4,138) (4,475)  
Final balance 709,667 626,782 706,580  
Senior Notes At 6.80 Percent Due 2032        
Disclosure of Financial obligations [Line Items]        
Issuance of bonds Senior Notes 6.80% $ 650,000 0 0  
Borrowings rate of interest 6.80%     6.80%
Senior Notes at 5.50 Percent Due 2026        
Disclosure of Financial obligations [Line Items]        
Payment of bonds Senior Notes 5.50% $ (550,000) $ 0 $ 0  
Borrowings rate of interest 5.50%