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Provisions and other non-financial liabilities - Types of Provisions (Details)
 12 Months Ended
Dec. 31, 2024
USD ($)
Dec. 31, 2023
USD ($)
Disclosure Of Provisions And Other Non-Financial Liabilities [Line Items]    
Current $ 311,197,000 $ 392,322,000
Non-current 53,317,000 60,450,000
Total $ 364,514,000 452,772,000
Potassium-lithium operations | Minimum    
Disclosure Of Provisions And Other Non-Financial Liabilities [Line Items]    
Discount rate evaluation horizon (in years) 8  
Potassium-lithium operations | Top of range    
Disclosure Of Provisions And Other Non-Financial Liabilities [Line Items]    
Discount rate evaluation horizon (in years) 25  
Nitrate-iodine operations | Minimum    
Disclosure Of Provisions And Other Non-Financial Liabilities [Line Items]    
Discount rate evaluation horizon (in years) 11  
Nitrate-iodine operations | Top of range    
Disclosure Of Provisions And Other Non-Financial Liabilities [Line Items]    
Discount rate evaluation horizon (in years) 22  
Legal complaints    
Disclosure Of Provisions And Other Non-Financial Liabilities [Line Items]    
Current $ 8,957,000 106,000
Non-current 106,000 1,195,000
Total 9,063,000 1,301,000
Provision for dismantling, restoration and rehabilitation cost    
Disclosure Of Provisions And Other Non-Financial Liabilities [Line Items]    
Current 0 0
Non-current 53,011,000 58,459,000
Total 53,011,000 58,459,000
Other provisions    
Disclosure Of Provisions And Other Non-Financial Liabilities [Line Items]    
Current 302,240,000 392,216,000
Non-current 200,000 796,000
Total $ 302,440,000 $ 393,012,000