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Financial risk management - Currency Appreciation/Depreciation Effects on Net Monetary Position (Details) - USD ($)
$ in Thousands
Dec. 31, 2021
Dec. 31, 2020
Disclosure of detailed information about financial instruments [line items]    
Risk exposure associated with instruments sharing characteristic $ (916,525) $ (847,201)
U.S. Dollar    
Disclosure of detailed information about financial instruments [line items]    
Risk exposure associated with instruments sharing characteristic (485,398) (433,122)
Argentine Peso    
Disclosure of detailed information about financial instruments [line items]    
Risk exposure associated with instruments sharing characteristic (300,450) (308,450)
Argentine Peso | U.S. Dollar    
Disclosure of detailed information about financial instruments [line items]    
Risk exposure associated with instruments sharing characteristic (267,448) (193,353)
Brazilian Reais    
Disclosure of detailed information about financial instruments [line items]    
Risk exposure associated with instruments sharing characteristic (666,501) (605,650)
Brazilian Reais | U.S. Dollar    
Disclosure of detailed information about financial instruments [line items]    
Risk exposure associated with instruments sharing characteristic (270,213) (307,611)
Uruguayan Peso    
Disclosure of detailed information about financial instruments [line items]    
Risk exposure associated with instruments sharing characteristic 19,936 20,065
Uruguayan Peso | U.S. Dollar    
Disclosure of detailed information about financial instruments [line items]    
Risk exposure associated with instruments sharing characteristic 21,773 20,720
Currency risk | U.S. Dollar    
Disclosure of detailed information about financial instruments [line items]    
Risk exposure associated with instruments sharing characteristic (51,589) (48,024)
Currency risk | Argentine Peso | U.S. Dollar    
Disclosure of detailed information about financial instruments [line items]    
Risk exposure associated with instruments sharing characteristic (26,745) (19,335)
Currency risk | Brazilian Reais | U.S. Dollar    
Disclosure of detailed information about financial instruments [line items]    
Risk exposure associated with instruments sharing characteristic (27,021) (30,761)
Currency risk | Uruguayan Peso | U.S. Dollar    
Disclosure of detailed information about financial instruments [line items]    
Risk exposure associated with instruments sharing characteristic $ 2,177 $ 2,072