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Related party disclosures (Details 1) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2017 | Dec. 31, 2016 | Dec. 31, 2015
Doktor Tarsa Tarim Sanayi AS [Member] |  |  |
Related party disclosures [Line Items] |  |  |
Tax ID | Foreign | Foreign |
Nature | Associate | Associate |
Country of origin | Turkey | Turkey |
Transaction | Sale of products |  |
Revenue from sale of goods, related party transactions | $ 17,538 | $ 11,619 | $ 17,842
Ajay Europe S.A.R.L [Member] |  |  |
Related party disclosures [Line Items] |  |  |
Tax ID | Foreign | Foreign |
Nature | Associate | Associate |
Country of origin | France | France |
Transaction | Dividends |  |
Dividend income | $ 969 | $ 1,338 | 1,748
Ajay North America LLC. [Member] |  |  |
Related party disclosures [Line Items] |  |  |
Tax ID | Foreign |  |
Nature | Associate |  |
Country of origin | United States |  |
Transaction | Sale of products |  |
Revenue from sale of goods, related party transactions | $ 13,206 | $ 12,865 | 15,618
Abu Dhabi Fertilizer Industries WWL [Member] |  |  |
Related party disclosures [Line Items] |  |  |
Tax ID | Foreign | Foreign |
Nature | Associate | Associate |
Country of origin | United Arab Emirates | Arab Emirates |
Transaction | Sale of products |  |
Revenue from sale of goods, related party transactions | $ 4,351 | $ 8,312 | 7,902
Charlee SQM Thailand Co. Ltd. [Member] |  |  |
Related party disclosures [Line Items] |  |  |
Tax ID | Foreign | Foreign |
Nature | Associate | Associate |
Country of origin | Thailand | Thailand |
Transaction | Sale of products |  |
Revenue from sale of goods, related party transactions | $ 5,102 | $ 3,798 | 5,557
Sales de Magnesio Ltda. [Member] |  |  |
Related party disclosures [Line Items] |  |  |
Tax ID | 77,557,430-5 |  |
Nature | Associate |  |
Country of origin | Chile |  |
Transaction | Sale of products |  |
Revenue from sale of goods, related party transactions | $ 45 | $ 0 | 1,187
Kowa Company Ltd. [Member] |  |  |
Related party disclosures [Line Items] |  |  |
Tax ID | Foreign | Foreign |
Nature | Joint control | Joint control |
Country of origin | Japan | Japan |
Transaction | Sale of products |  |
Revenue from sale of goods, related party transactions | $ 132,495 | $ 91,678 | 62,543
SQM Vitas Brasil Agroindustria [Member] |  |  |
Related party disclosures [Line Items] |  |  |
Tax ID | Foreign |  |
Nature | Joint control or significant influence |  |
Country of origin | Brazil |  |
Transaction | Sale of products |  |
Revenue from sale of goods, related party transactions | $ 31,137 | $ 17,686 | 32,019
SQM Vitas Peru S.A.C. [Member] |  |  |
Related party disclosures [Line Items] |  |  |
Tax ID | Foreign | Foreign |
Nature | Other related parties | Other related parties |
Country of origin | Peru | Peru |
Transaction | Sale of products |  |
Revenue from sale of goods, related party transactions | $ 23,058 | $ 22,090 | 34,586
SQM Vitas Fzco. [Member] |  |  |
Related party disclosures [Line Items] |  |  |
Tax ID | Foreign | Foreign |
Nature | Joint venture | Joint venture |
Country of origin | United Arab Emirates | Arab Emirates |
Transaction | Sale of products |  |
Revenue from sale of goods, related party transactions | $ 85 | $ 965 | 1,060
Sichuan SQM Migao Chemical Fertilizers Co Ltda. [Member] |  |  |
Related party disclosures [Line Items] |  |  |
Tax ID | Foreign | Foreign |
Nature | Joint venture | Joint venture |
Country of origin | China | China |
Transaction | Sale of products |  |
Revenue from sale of goods, related party transactions | $ 0 | $ 9,950 | 22,624
Coromandel SQM India [Member] |  |  |
Related party disclosures [Line Items] |  |  |
Tax ID | Foreign | Foreign |
Nature | Joint venture | Joint venture |
Country of origin | India | India |
Transaction | Sale of products |  |
Revenue from sale of goods, related party transactions | $ 8,011 | $ 4,630 | 4,012
SQM Vitas Spain [Member] |  |  |
Related party disclosures [Line Items] |  |  |
Tax ID | Foreign |  |
Nature | Joint venture |  |
Country of origin | Spain |  |
Transaction | Sale of products |  |
Revenue from sale of goods, related party transactions | $ 0 | $ 5,528 | 8,587
SQM Vitas Plantacote B.V [Member] |  |  |
Related party disclosures [Line Items] |  |  |
Tax ID | Foreign | Foreign |
Nature | Other related parties | Other related parties |
Country of origin | Netherlands | Dutch Antilles |
Transaction | Sale of products |  |
Revenue from sale of goods, related party transactions | $ 0 | $ 49 | 27
SQM Star Qingdao Corp Nutrition Co., Ltd. [Member] |  |  |
Related party disclosures [Line Items] |  |  |
Tax ID | Foreign | Foreign |
Nature | Joint venture | Joint venture |
Country of origin | China | China |
Transaction | Sale of products |  |
Revenue from sale of goods, related party transactions | $ 200 | $ 166 | 0
SQM Vitas Holland B.V. [Member] |  |  |
Related party disclosures [Line Items] |  |  |
Tax ID | Foreign | Foreign |
Nature | Joint venture | Joint venture |
Country of origin | Holland | Dutch Antilles |
Transaction | Sale of products |  |
Revenue from sale of goods, related party transactions | $ 0 | $ 634 | 0
Callegari Agricola S.A. [Member] |  |  |
Related party disclosures [Line Items] |  |  |
Tax ID | 79.049.778-9 | 79,049,778-9 |
Nature | Other related parties | Other related parties |
Country of origin | Chile | Chile |
Transaction | Sale of products |  |
Revenue from sale of goods, related party transactions | $ 210 | $ 44 | 0
Minera Exar S.A. [Member] |  |  |
Related party disclosures [Line Items] |  |  |
Tax ID | Foreign | Foreign |
Nature | Joint control | Joint control |
Country of origin | Argentina | Argentina |
Transaction | Loans |  |
Amounts receivable, related party transactions | $ 11,000 | $ 0 | 0
Terra Tarsa Ukraine LLC [Member] |  |  |
Related party disclosures [Line Items] |  |  |
Tax ID | Foreign | Foreign |
Nature | Other related parties | Other related parties |
Country of origin | Turkey | Ukraine |
Transaction | Sale of services |  |
Revenue from rendering of services, related party transactions | $ 1,218 | $ 0 | 0
Terra Tarsa Don LLC [Member] |  |  |
Related party disclosures [Line Items] |  |  |
Tax ID | Foreign | Foreign |
Nature | Other related parties | Other related parties |
Country of origin | Russian Federation | Russian Federation |
Transaction | Sale of products |  |
Revenue from sale of goods, related party transactions | $ 423 | $ 0 | 0
Plantacote N.V [Member] |  |  |
Related party disclosures [Line Items] |  |  |
Tax ID | Foreing | Foreign |
Nature | Other related parties | Other related parties |
Country of origin | Belgium | Belgium |
Transaction | Sale of products |  |
Revenue from sale of goods, related party transactions | $ 2,108 | $ 0 | 0
Ajay Europe S,A.R.L. [Member] |  |  |
Related party disclosures [Line Items] |  |  |
Tax ID | Foreign |  |
Nature | Associate |  |
Country of origin | France |  |
Transaction | Sale of products |  |
Revenue from sale of goods, related party transactions | $ 15,706 | 17,977 | 23,545
Ajay North America LLC. [Member] |  |  |
Related party disclosures [Line Items] |  |  |
Tax ID | Foreign |  |
Nature | Associate |  |
Country of origin | United States |  |
Transaction | Dividends |  |
Dividend income | $ 1,123 | 2,605 | 5,185
Charlee SQM Thailand Co. Ltd. [Member] |  |  |
Related party disclosures [Line Items] |  |  |
Tax ID | Foreign |  |
Nature | Associate |  |
Country of origin | Thailand |  |
Transaction | Dividends |  |
Dividend income | $ 0 | 0 | 296
Sales de Magnesio Ltda. [Member] |  |  |
Related party disclosures [Line Items] |  |  |
Tax ID | 77,557,430-5 |  |
Nature | Associate |  |
Country of origin | Chile |  |
Transaction | Dividends |  |
Dividend income | $ 0 | 0 | 286
Sales de Magnesio Ltda. [Member] |  |  |
Related party disclosures [Line Items] |  |  |
Tax ID | 77,557,430-5 |  |
Nature | Associate |  |
Country of origin | Chile |  |
Transaction | Sale of services |  |
Revenue from rendering of services, related party transactions | $ 0 | 0 | 34
Kowa Company Ltd. [Member] |  |  |
Related party disclosures [Line Items] |  |  |
Tax ID | Foreign |  |
Nature | Other related parties |  |
Country of origin | Japan |  |
Transaction | Services received |  |
Services received, related party transactions | $ 0 | 0 | (933)
Sichuan SQM Migao Chemical Fertilizers Co Ltda. [Member] |  |  |
Related party disclosures [Line Items] |  |  |
Tax ID | Foreign |  |
Nature | Joint venture |  |
Country of origin | China |  |
Transaction | Sale of services |  |
Revenue from rendering of services, related party transactions | $ 252 | $ 257 | $ 0

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