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Disclosures on equity - Other Reserves (Details) - USD ($)
$ in Thousands
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Disclosures Of Equity [Line Items]      
Total Other reserves $ 10,175 $ 11,881 $ 11,663
SQM Iberian S.A.      
Disclosures Of Equity [Line Items]      
Total Other reserves 9,464 9,464 9,464
SQM Europe N.V.      
Disclosures Of Equity [Line Items]      
Total Other reserves 354 1,957 1,957
Soquimich European Holding B.V.      
Disclosures Of Equity [Line Items]      
Total Other reserves 828 828 828
Soquimich Comercial S.A.      
Disclosures Of Equity [Line Items]      
Total Other reserves (393) (393) (401)
SQM Australia Pty Ltd.      
Disclosures Of Equity [Line Items]      
Total Other reserves 87 94 0
SQM Iberian S.A. 2      
Disclosures Of Equity [Line Items]      
Total Other reserves (1,677) (1,677) (1,677)
Orcoma Estudios SPA      
Disclosures Of Equity [Line Items]      
Total Other reserves 2,121 2,121 2,121
Pavoni And C. SpA      
Disclosures Of Equity [Line Items]      
Total Other reserves 7 7 7
SQM Vitas Fzco.      
Disclosures Of Equity [Line Items]      
Total Other reserves 85 85 85
SAS Adionics      
Disclosures Of Equity [Line Items]      
Total Other reserves 0 116 0
Other Subsidiaries      
Disclosures Of Equity [Line Items]      
Total Other reserves $ (701) $ (721) $ (721)