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Cost of sales of goods and services, without considering depreciation and amortization - Cost of sales of goods (Details) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2019
Cost of production        
Provision (reversal) for impairment of finished goods and product in progress, note 8(b) $ (3,851) $ 1,071 $ 5,471  
Cost of sales of goods, without considering depreciation and amortization 457,354 461,942 529,731  
cost of sales of products [Member]        
Disclosure of cost of sales [Line Items]        
Beginning balance of finished goods and products in process, net of depreciation and amortization   22,667 30,031 $ 31,797
Cost of production        
Services provided by third parties 166,227 185,028 224,979  
Consumption of materials and supplies 93,407 94,929 107,908  
Direct labor 77,781 67,704 75,099  
Short-term and low-value leases 26,794 29,329 31,309  
Electricity and water 28,729 21,510 17,657  
Maintenance and repair 21,601 21,099 25,681  
Insurance 16,946 16,118 16,091  
Transport 13,589 13,528 17,449  
Other minor cost of services 4,510 6,404 17,263  
Provision (reversal) for impairment of finished goods and product in progress, note 8(b) 3,851 (1,071) (5,471)  
Total cost of production 453,435 454,578 527,965  
Final balance of finished goods and products in process (18,748) (33,624) (30,031)  
Write - off of products in process 0 10,957 0  
Final balance of finished goods and products in process, net of depreciation and amortization (18,748) (22,667) (30,031)  
Cost of sales of goods, without considering depreciation and amortization $ 457,354 $ 461,942 $ 529,731