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Derivative financial instruments - Composition of the operations to be settled that are part of the liability for hedging derivative instrument (Details) - USD ($)
$ in Thousands
Dec. 31, 2022
Dec. 31, 2021
Disclosure of derivative financial instruments [Line Items]    
Fair value $ (8,839) $ (6,976)
Interest rate hedge    
Disclosure of derivative financial instruments [Line Items]    
Amount   275,000
Fair value 0 $ (644)
October 2022 One    
Disclosure of derivative financial instruments [Line Items]    
Amount   81,666
LIBOR of three months, Fixed interest rate (as a percent)   2.632%
Fair value   $ (191)
October 2022 One | Minimum    
Disclosure of derivative financial instruments [Line Items]    
LIBOR of three months, Futures, interest rate (as a percent)   2.06%
October 2022 One | Maximum    
Disclosure of derivative financial instruments [Line Items]    
LIBOR of three months, Futures, interest rate (as a percent)   2.14%
October 2022 Two    
Disclosure of derivative financial instruments [Line Items]    
Amount   74,167
LIBOR of three months, Fixed interest rate (as a percent)   2.632%
Fair value   $ (174)
October 2022 Two | Minimum    
Disclosure of derivative financial instruments [Line Items]    
LIBOR of three months, Futures, interest rate (as a percent)   2.06%
October 2022 Two | Maximum    
Disclosure of derivative financial instruments [Line Items]    
LIBOR of three months, Futures, interest rate (as a percent)   2.14%
October 2022 Three    
Disclosure of derivative financial instruments [Line Items]    
Amount   74,167
LIBOR of three months, Fixed interest rate (as a percent)   0.732%
Fair value   $ (174)
October 2022 Three | Minimum    
Disclosure of derivative financial instruments [Line Items]    
LIBOR of three months, Futures, interest rate (as a percent)   0.16%
October 2022 Three | Maximum    
Disclosure of derivative financial instruments [Line Items]    
LIBOR of three months, Futures, interest rate (as a percent)   0.24%
July 2022    
Disclosure of derivative financial instruments [Line Items]    
Amount   45,000
LIBOR of three months, Fixed interest rate (as a percent)   2.632%
Fair value   $ (105)
July 2022 | Minimum    
Disclosure of derivative financial instruments [Line Items]    
LIBOR of three months, Futures, interest rate (as a percent)   2.06%
July 2022 | Maximum    
Disclosure of derivative financial instruments [Line Items]    
LIBOR of three months, Futures, interest rate (as a percent)   2.14%
Copper and Zinc prices hedge    
Disclosure of derivative financial instruments [Line Items]    
Fair value $ 8,839 $ (6,332)