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Equity-accounted investees (Details Textual) - USD ($) $ in Thousands |  |  |  | 1 Months Ended | 3 Months Ended | 12 Months Ended |
--- | --- | --- | --- | --- | --- | --- | ---
Dec. 31, 2021 | Jun. 30, 2021 | Jul. 31, 2019 | Jul. 31, 2019 | Mar. 31, 2021 | Dec. 31, 2020 | Sep. 30, 2020 | Jun. 30, 2020 | Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019 | Dec. 11, 2019
Equity-accounted investees [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Profit loss from sale of interests in associates |  |  |  |  |  |  | $ 643 |  |  |  |  |
Dividends received |  |  |  |  |  |  |  |  | $ 11,663 | $ 3,164 | $ 3,851 |
Dividends receivable | $ 2,099 |  |  |  |  |  |  |  | $ 2,099 |  |  |
Kore Potash Ltd. [Member] |  |  |  |  |  |  |  |  |  |  |  |
Equity-accounted investees [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Percentage share reduction |  |  |  |  | 0.05% | 0.06% |  | 0.60% |  |  |  |
Transfer in equity of non controlling interest to other reserves |  |  |  |  | $ 3,739 |  |  |  |  |  |  |
Increase decrease in equity through share based payment transaction |  |  |  |  |  | $ 79 |  | $ 754 |  |  |  |
Proportion of ownership interest in associate |  |  |  |  | 20.15% | 20.20% |  | 19.07% |  |  |  |
Issue of equity |  |  |  |  | $ 13,931 |  |  |  |  |  |  |
Percentage of dilution of shares |  |  |  |  | 5.5 |  |  |  |  |  |  |
Profit loss from sale of interests in associates |  |  |  |  | $ (5,778) |  |  |  |  |  |  |
Kore Potash Ltd. [Member] | SQM [Member] | South Africa |  |  |  |  |  |  |  |  |  |  |  |
Equity-accounted investees [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Investment in associate shares |  |  |  |  |  |  | 260,598,591 |  |  |  |  |
Total shares in associates |  |  |  |  |  |  | 584,753,846 |  |  |  |  |
Payment to acquire investment in associates |  |  |  | $ 2,600 |  |  | $ 1,679 |  |  |  |  |
Proportion of ownership interest in associate |  |  | 19.67% |  |  |  | 20.26% |  |  |  |  |
Plantacote N.V [Member] | WSNPK [Member] | SQM [Member] | Netherlands |  |  |  |  |  |  |  |  |  |  |  |
Equity-accounted investees [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Business combination total purchase consideration |  |  |  |  |  | $ 16,757 |  |  |  | 16,757 |  |
Business combination goodwill |  |  |  |  |  | $ 7,380 |  |  |  | 7,380 |  |
Doktor Tarsa Tarim Sanayi AS [Member] |  |  |  |  |  |  |  |  |  |  |  |
Equity-accounted investees [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Proceeds from sales of interests in associates |  |  |  |  |  |  | $ 33,066 |  |  |  |  |
Proportion of ownership interest in associate |  |  |  |  |  |  |  |  | 50.00% |  |  |
Profit loss from sale of interests in associates |  |  |  |  |  |  | 11,408 |  |  |  |  |
Dividends received |  |  |  |  |  |  |  |  |  |  |  |
Doktor Tarsa Tarim Sanayi AS [Member] | Doctochem Tarim Sanayi LTD [Member] |  |  |  |  |  |  |  |  |  |  |  |
Equity-accounted investees [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Percentage of voting equity interests acquired |  |  |  |  |  |  |  |  |  |  |  | 100.00%
SQM Eastmed Turkey [Member] |  |  |  |  |  |  |  |  |  |  |  |
Equity-accounted investees [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Proceeds from sales of interests in associates |  |  |  |  |  |  | 618 |  |  |  |  |
Proportion of ownership interest in associate |  |  |  |  |  |  |  |  | 50.00% |  |  |
Profit loss from sale of interests in associates |  |  |  |  |  |  | $ 408 |  |  |  |  |
Dividends received |  |  |  |  |  |  |  |  | $ 0 | 0 | 0 |
Abu Dhabi Fertilizer Industries WWL [Member] |  |  |  |  |  |  |  |  |  |  |  |
Equity-accounted investees [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Proportion of ownership interest in associate |  |  |  |  |  |  |  |  | 37.00% |  |  |
Dividends received |  |  |  |  |  |  |  |  | $ 9,438 | $ 0 | $ 0 |
Impairment loss recognised in profit or loss |  | $ 2,800 |  |  |  |  |  |  |  |  |  |
Related Party of Abu Dhabi Fertilizer Industries WWL [Member] | Internacional Technical and Trading Agenies Co. WLL |  |  |  |  |  |  |  |  |  |  |  |
Equity-accounted investees [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Dividends received | $ 9,438 |  |  |  |  |  |  |  |  |  |  |

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