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Exploration in operating units (Details) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Disclosure Of Exploration In Operating Units [Line Items]      
Beginning balance of finished goods and products in process, net of depreciation and amortization $ 2,036 $ 1,296 $ 444
Total exploration in operating units 79,748 57,152 28,896
Final balance of products in process and finished goods, net of depreciation and amortization (1,408) (2,036) (1,296)
Write - off of products in process 420 0 0
Final balance of finished goods and products in process , net of depreciation and amortization 988 2,036 1,296
Exploration in operating units 80,796 56,412 28,044
Disbursement of exploration in operating activities 80,796 56,412 28,044
Services provided by third parties      
Disclosure Of Exploration In Operating Units [Line Items]      
Exploration in operating units 51,912 45,437 20,406
Purchase of land      
Disclosure Of Exploration In Operating Units [Line Items]      
Exploration in operating units 10,066 0 2,162
Direct labor      
Disclosure Of Exploration In Operating Units [Line Items]      
Exploration in operating units 7,097 3,891 3,361
Short-term and low-value lease      
Disclosure Of Exploration In Operating Units [Line Items]      
Exploration in operating units 5,016 2,641 766
Consumption of materials and supplies      
Disclosure Of Exploration In Operating Units [Line Items]      
Exploration in operating units 4,502 3,839 1,426
Transport      
Disclosure Of Exploration In Operating Units [Line Items]      
Exploration in operating units 470 108 12
Maintenance and repair      
Disclosure Of Exploration In Operating Units [Line Items]      
Exploration in operating units 211 165 9
Electricity and water      
Disclosure Of Exploration In Operating Units [Line Items]      
Exploration in operating units 72 834 471
Other      
Disclosure Of Exploration In Operating Units [Line Items]      
Exploration in operating units $ 402 $ 237 $ 283