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Other current and non-current non-financial assets - Short and Long-Term Exploitation Conciliation (Details) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Detailed Information About Short Term And Long Term Exploitation Conciliation [Line Items]      
Amortization of ground studies $ (733) $ (2,131) $ (2,421)
Short-Term Exploitation Conciliation      
Detailed Information About Short Term And Long Term Exploitation Conciliation [Line Items]      
Opening balance 651 1,700  
Amortization of ground studies 0 0  
Reclasifications from/to short term (inventories) 197 (1,049)  
Total changes 197 (1,049)  
Total 848 651 1,700
Long-Term Exploitation Conciliation      
Detailed Information About Short Term And Long Term Exploitation Conciliation [Line Items]      
Opening balance 6,614 7,696  
Amortization of ground studies (733) (2,131)  
Reclasifications from/to short term (inventories) (197) 1,049  
Total changes (930) (1,082)  
Total $ 5,684 $ 6,614 $ 7,696