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Related party disclosures (Details 1) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018
Doktor Tarsa Tarim Sanayi AS [Member] |  |  |
Related party disclosures [Line Items] |  |  |
Tax ID | Foreign |  |
Nature | Associate |  |
Country of origin | Turkey |  |
Transaction | Sale of products |  |
Revenue from sale of goods, related party transactions | $ 1,053 | $ 14,767 | $ 16,726
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 | $ 23,162 | 21,348 | 19,470
Ajay Europe S,A.R.L. [Member] |  |  |
Related party disclosures [Line Items] |  |  |
Tax ID | Foreign |  |
Nature | Associate |  |
Country of origin | France |  |
Transaction | Dividends |  |
Dividend income | $ 1,197 | 1,055 | 811
Ajay North America LLC. [Member] |  |  |
Related party disclosures [Line Items] |  |  |
Tax ID | Foreign |  |
Nature | Associate |  |
Country of origin | United States of America |  |
Transaction | Sale of products |  |
Revenue from sale of goods, related party transactions | $ 20,259 | 16,932 | 16,810
Ajay North America LLC. [Member] |  |  |
Related party disclosures [Line Items] |  |  |
Tax ID | Foreign |  |
Nature | Associate |  |
Country of origin | United States of America |  |
Transaction | Dividends |  |
Dividend income | $ 1,967 | 2,796 | 2,807
Abu Dhabi Fertilizer Industries WWL [Member] |  |  |
Related party disclosures [Line Items] |  |  |
Tax ID | Foreign |  |
Nature | Associate |  |
Country of origin | Arab Emirates |  |
Transaction | Sale of products |  |
Revenue from sale of goods, related party transactions | $ 0 | 3,749 | 5,811
Abu Dhabi Fertilizer Industries WWL [Member] |  |  |
Related party disclosures [Line Items] |  |  |
Tax ID | Foreign |  |
Nature | Associate |  |
Country of origin | Arab Emirates |  |
Transaction | Dividends |  |
Dividend income | $ 0 | 0 | 6,632
Charlee SQM Thailand Co. Ltd. [Member] |  |  |
Related party disclosures [Line Items] |  |  |
Tax ID | Foreign |  |
Nature | Associate |  |
Country of origin | Thailand |  |
Transaction | Sale of products |  |
Revenue from sale of goods, related party transactions | $ 0 | 0 | 4,960
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 | 362
SQM Vitas Brasil Agroindustria [Member] |  |  |
Related party disclosures [Line Items] |  |  |
Tax ID | Foreign |  |
Nature | Other related parties |  |
Country of origin | Brazil |  |
Transaction | Sale of products |  |
Revenue from sale of goods, related party transactions | $ 41,341 | 46,876 | 44,827
SQM Vitas Peru S.A.C. [Member] |  |  |
Related party disclosures [Line Items] |  |  |
Tax ID | Foreign |  |
Nature | Other related parties |  |
Country of origin | Peru |  |
Transaction | Sale of products |  |
Revenue from sale of goods, related party transactions | $ 17,723 | 24,138 | 17,204
SQM Vitas Fzco. [Member] |  |  |
Related party disclosures [Line Items] |  |  |
Tax ID | Foreign |  |
Nature | Joint venture |  |
Country of origin | Arab Emirates |  |
Transaction | Dividends |  |
Dividend income | $ 0 | 10,598 | 0
Coromandel SQM India [Member] |  |  |
Related party disclosures [Line Items] |  |  |
Tax ID | Foreign |  |
Nature | Joint venture |  |
Country of origin | India |  |
Transaction | Sale of products |  |
Revenue from sale of goods, related party transactions | $ 1,510 | 3,955 | 7,696
SQM Star Qingdao Corp Nutrition Co., Ltd. [Member] |  |  |
Related party disclosures [Line Items] |  |  |
Tax ID | Foreign |  |
Nature | Joint venture |  |
Country of origin | China |  |
Transaction | Sale of products |  |
Revenue from sale of goods, related party transactions | $ 0 | 1,929 | 0
Terra Tarsa Ukraine LLC [Member] |  |  |
Related party disclosures [Line Items] |  |  |
Tax ID | Foreign |  |
Nature | Other related parties |  |
Country of origin | Ukraine |  |
Transaction | Sale of products |  |
Revenue from sale of goods, related party transactions | $ 737 | 1,280 | 1,674
Plantacote N.V [Member] |  |  |
Related party disclosures [Line Items] |  |  |
Tax ID | Foreign |  |
Nature | Other related parties |  |
Country of origin | Belgium |  |
Transaction | Sale of products |  |
Revenue from sale of goods, related party transactions | $ 0 | 4,096 | 4,554
Pavoni & C, SPA [Member] |  |  |
Related party disclosures [Line Items] |  |  |
Tax ID | Foreign |  |
Nature | Joint venture |  |
Country of origin | Italy |  |
Transaction | Sale of products |  |
Revenue from sale of goods, related party transactions | $ 1,125 | 3,152 | 201
Arpa Speciali SRL [Member] |  |  |
Related party disclosures [Line Items] |  |  |
Tax ID | Foreign |  |
Nature | Other related parties |  |
Country of origin | Italy |  |
Transaction | Sale of products |  |
Revenue from sale of goods, related party transactions | $ 0 | 2,359 | 207
SQM Star Qingdao Corp Nutrition Co., Ltd. [Member] |  |  |
Related party disclosures [Line Items] |  |  |
Tax ID | Foreign |  |
Nature | Joint venture |  |
Country of origin | China |  |
Transaction | Dividends |  |
Dividend income | $ 2,223 | 0 |
Terra Tarsa Don LLC [Member] |  |  |
Related party disclosures [Line Items] |  |  |
Tax ID | Foreign |  |
Nature | Other related parties |  |
Country of origin | Russian Federation |  |
Transaction | Sale of products |  |
Revenue from sale of goods, related party transactions | $ 0 | 40 | 187
SQM Eastmed Turkey [Member] |  |  |
Related party disclosures [Line Items] |  |  |
Tax ID | Foreign |  |
Nature | Associate |  |
Country of origin | Turkey |  |
Transaction | Sale of products |  |
Revenue from sale of goods, related party transactions | $ 0 | $ 47 | $ 30

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