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Income tax and deferred taxes - Current Tax Liabilities (Details) - USD ($)
$ in Thousands
Dec. 31, 2024
Dec. 31, 2023
Major Components Of Tax Expense [Line Items]    
Current tax liabilities $ 79,841 $ 183,633
Chilean income tax    
Major Components Of Tax Expense [Line Items]    
Current tax liabilities 24,687 636
Specific mining tax to lithium mining    
Major Components Of Tax Expense [Line Items]    
Current tax liabilities 0 162,743
Foreign company income tax    
Major Components Of Tax Expense [Line Items]    
Current tax liabilities 55,154 $ 20,254
Monthly provisional income tax payments, Chilean companies    
Major Components Of Tax Expense [Line Items]    
Current tax liabilities 90,900  
Provisional monthly income tax payments, foreign subsidiaries    
Major Components Of Tax Expense [Line Items]    
Current tax liabilities $ 66,900