Right-of-use assets and Lease liabilities - Details of Current and Non-Current Lease Liabilities (Details)	Dec. 31, 2022
SQM Salar S.A. \| Empresa Constructora Contex Ltda
Disclosure of quantitative information about right-of-use assets [line items]
Effective rate	5.39%
SQM Salar S.A. \| Maquinaria Astudillo y Hermanos Ltda.
Disclosure of quantitative information about right-of-use assets [line items]
Effective rate	2.89%
SQM Salar S.A. \| Obras y Servicios para la Industria y Mineria S.A.
Disclosure of quantitative information about right-of-use assets [line items]
Effective rate	2.61%
SQM Salar S.A. \| Sociedad Comercial Grandleasing Chile Ltda
Disclosure of quantitative information about right-of-use assets [line items]
Effective rate	0.00%
SQM Salar S.A. \| Sociedad Inmobiliaria Amaru SpA
Disclosure of quantitative information about right-of-use assets [line items]
Effective rate	2.00%
SQM Salar S.A. \| Inversiones y Gestin New Energy SpA
Disclosure of quantitative information about right-of-use assets [line items]
Effective rate	0.00%
SQM Salar S.A. \| Tatersall Maquinarias S.A.
Disclosure of quantitative information about right-of-use assets [line items]
Effective rate	2.90%
SQM Salar S.A. \| Maquinaria Astudillo y Hermanos Ltda.
Disclosure of quantitative information about right-of-use assets [line items]
Effective rate	3.26%
SQM Salar S.A. \| Jungheinrich Rentalif SPA
Disclosure of quantitative information about right-of-use assets [line items]
Effective rate	2.90%
SQM Industrial S.A. \| Sociedad Comercial Grandleasing Chile Ltda
Disclosure of quantitative information about right-of-use assets [line items]
Effective rate	2.72%
SQM Industrial S.A. \| El Trovador S.A.
Disclosure of quantitative information about right-of-use assets [line items]
Effective rate	3.10%
SQM Industrial S.A. \| Jungheinrich Rentalif SPA
Disclosure of quantitative information about right-of-use assets [line items]
Effective rate	3.49%
SQM Industrial S.A. \| Tecno Fast S.A.
Disclosure of quantitative information about right-of-use assets [line items]
Effective rate	1.44%
SQM S.A. \| Jungheinrich Rentalif SPA
Disclosure of quantitative information about right-of-use assets [line items]
Effective rate	3.49%
Soquimich Comercial S.A. \| Containers Operators S.A.
Disclosure of quantitative information about right-of-use assets [line items]
Effective rate	0.81%
Soquimich Comercial S.A. \| SAAM Logistics S.A.
Disclosure of quantitative information about right-of-use assets [line items]
Effective rate	0.81%
Soquimich Comercial S.A. \| Muelles de Penco S.A.
Disclosure of quantitative information about right-of-use assets [line items]
Effective rate	4.11%
Soquimich Comercial S.A. \| Muelles de Penco S.A. one
Disclosure of quantitative information about right-of-use assets [line items]
Effective rate	1.30%
Soquimich Comercial S.A. \| Inmobiliaria Chincui SPA
Disclosure of quantitative information about right-of-use assets [line items]
Effective rate	3.38%
Soquimich Comercial S.A. \| Compaa de Leasing Tattersall S.A.
Disclosure of quantitative information about right-of-use assets [line items]
Effective rate	2.97%
Orcoma Estudios SPA \| Obispado de Iquique
Disclosure of quantitative information about right-of-use assets [line items]
Effective rate	6.16%
Orcoma Estudios SPA \| Comunidad Indgena Aymara Pueblo de Pisiga Choque
Disclosure of quantitative information about right-of-use assets [line items]
Effective rate	2.53%
Orcoma Estudios SPA \| Ruth del Carmen Cortez Maturana
Disclosure of quantitative information about right-of-use assets [line items]
Effective rate	7.44%
SQM North America Corp. \| Paces West LL.
Disclosure of quantitative information about right-of-use assets [line items]
Effective rate	3.36%
SQM North America Corp. \| Hawkins Nunmber One, LLC
Disclosure of quantitative information about right-of-use assets [line items]
Effective rate	3.33%
SQM North America Corp. \| Deep South Equipment Company
Disclosure of quantitative information about right-of-use assets [line items]
Effective rate	1.33%
SQM North America Corp. \| Tennant-South
Disclosure of quantitative information about right-of-use assets [line items]
Effective rate	1.00%
SQM North America Corp. \| Deacon Jones CDJR
Disclosure of quantitative information about right-of-use assets [line items]
Effective rate	2.81%
SQM North America Corp. \| Mt Mullahey Inc. Mullahey Chrysler Dodge
Disclosure of quantitative information about right-of-use assets [line items]
Effective rate	2.81%
SQM North America Corp. \| Berwyn Partners Inc.
Disclosure of quantitative information about right-of-use assets [line items]
Effective rate	1.34%
SQM North America Corp. \| Myers Ford Co Inc.
Disclosure of quantitative information about right-of-use assets [line items]
Effective rate	1.51%
SQM North America Corp. \| Ford Motor Credit Company
Disclosure of quantitative information about right-of-use assets [line items]
Effective rate	4.19%
SQM North America Corp. \| Porter and Howard INC.
Disclosure of quantitative information about right-of-use assets [line items]
Effective rate	5.64%
SQM North America Corp. \| Hanford Chrysler Dodge Jeep
Disclosure of quantitative information about right-of-use assets [line items]
Effective rate	4.44%
SQM Comercial de Mexico S.A. de C.V. \| Onni Ensenada S.A. de C.V.
Disclosure of quantitative information about right-of-use assets [line items]
Effective rate	3.45%
SQM Comercial de Mexico S.A. de C.V. \| Madol Inmobiliaria S.A. de C.V.
Disclosure of quantitative information about right-of-use assets [line items]
Effective rate	7.84%
SQM Europe NV \| Straatsburgdok N.V.
Disclosure of quantitative information about right-of-use assets [line items]
Effective rate	1.30%
SQM Australia PTY \| The trust Company (Australia) Pty Ltd
Disclosure of quantitative information about right-of-use assets [line items]
Effective rate	3.60%
SQM Australia PTY \| Eagle Petroleum (WA) Pty Ltd
Disclosure of quantitative information about right-of-use assets [line items]
Effective rate	5.00%
SQM Australia PTY \| Ausco Modular Pty Limited
Disclosure of quantitative information about right-of-use assets [line items]
Effective rate	5.00%
SQM Australia PTY \| Western Australian Land Authority
Disclosure of quantitative information about right-of-use assets [line items]
Effective rate	3.55%
SQM Australia PTY \| Mining Thiess Pty Ltd.
Disclosure of quantitative information about right-of-use assets [line items]
Effective rate	3.55%
SQM Colombia S.A.S. \| Mareauto Colombia S.A.S.
Disclosure of quantitative information about right-of-use assets [line items]
Effective rate	2.01%
SQM Colombia S.A.S. \| Renting Colombia S.A.
Disclosure of quantitative information about right-of-use assets [line items]
Effective rate	2.72%
SQM Colombia S.A.S. \| Renting Colombia S.A.
Disclosure of quantitative information about right-of-use assets [line items]
Effective rate	2.17%
SQM Africa Pty \| Goscor Finance (Pty) Ltd
Disclosure of quantitative information about right-of-use assets [line items]
Effective rate	8.51%
SQM Nitratos S.A. \| Jungheinrich Rentalif SPA
Disclosure of quantitative information about right-of-use assets [line items]
Effective rate	3.49%

SQM Salar S.A. | Empresa Constructora Contex Ltda