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Equity-accounted investees (Details Textual) - USD ($) $ in Thousands |  | 1 Months Ended | 3 Months Ended | 12 Months Ended |  |  |
--- | --- | --- | --- | --- | --- | --- | ---
Nov. 14, 2018 | Jul. 31, 2019 | Jun. 30, 2018 | Mar. 31, 2018 | Dec. 31, 2019 | Mar. 31, 2019 | Dec. 31, 2019 | Dec. 31, 2018 | Dec. 31, 2017 | Dec. 11, 2019 | May 15, 2018 | Dec. 01, 2017
Equity-accounted investees [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Investments accounted for using equity method |  |  |  |  | $ 109,435 |  | $ 109,435 | $ 111,549 | $ 152,630 |  |  |
Percentage of voting equity interests acquired |  |  |  |  |  |  |  |  | 50.00% |  | 50.00% | 50.00%
Dividends paid, classified as financing activities |  |  |  |  |  |  | $ 329,787 | 550,352 | $ 373,933 |  |  |
Description of Dividend Distribution |  |  |  |  |  |  | 50% of the distributed dividend was charged to retained earnings generated subsequent to 2014, in line with the Company’s statutes that establish that 37% of the distributed dividend corresponds to SQM. The remaining 50% was charged to retained earnings generated between 2004 and 2014, in line with the entity’s statutes that establish that 50% of the distributed dividend corresponds to SQM. |  |  |  |  |
Kore Potash Ltd. [Member] |  |  |  |  |  |  |  |  |  |  |  |
Equity-accounted investees [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Proportion of ownership interest in associate |  | 19.67% |  |  |  |  |  |  |  |  |  |
Doctochem Tarim Sanayi Ticaret LTD [Member] |  |  |  |  |  |  |  |  |  |  |  |
Equity-accounted investees [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Percentage of voting equity interests acquired |  |  |  |  |  |  |  |  |  | 100.00% |  |
Abu Dhabi Fertilizer Industries WLL |  |  |  |  |  |  |  |  |  |  |  |
Equity-accounted investees [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Dividends paid, classified as financing activities |  |  | $ 7,034 | $ 10,890 |  |  |  |  |  |  |  |
Description of Dividend Distribution |  |  |  |  |  |  | 50 |  |  |  |  |
Ajay North America |  |  |  |  |  |  |  |  |  |  |  |
Equity-accounted investees [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Dividends paid, classified as financing activities |  |  |  | 1,432 | $ 5,706 |  |  | $ 5,728 |  |  |  |
Ajay North Europe SARL [Member] |  |  |  |  |  |  |  |  |  |  |  |
Equity-accounted investees [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Dividends paid, classified as financing activities |  |  | 1,622 |  |  | $ 2,107 |  |  |  |  |  |
SQM Thailand Co Ltd [Member] |  |  |  |  |  |  |  |  |  |  |  |
Equity-accounted investees [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Dividends paid, classified as financing activities | $ 759 |  | $ 906 |  |  |  |  |  |  |  |  |
Kore Potash PLC [Member] |  |  |  |  |  |  |  |  |  |  |  |
Equity-accounted investees [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Investments accounted for using equity method |  | $ 2,600 |  | $ 3,000 |  |  |  |  |  |  |  |
Doktor Tarsa Tarim [Member] | Plantacote N.V [Member] |  |  |  |  |  |  |  |  |  |  |  |
Equity-accounted investees [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Investments accounted for using equity method |  |  |  |  |  |  |  |  | $ 4,208 |  |  |
Proportion of ownership interest in associate |  |  |  |  |  |  |  |  | 100.00% |  |  |

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- Definition The amount of investments accounted for using the equity method. The equity method is a method of accounting whereby the investment is initially recognised at cost and adjusted thereafter for the post-acquisition change in the investor's share of net assets of the investee. The investor's profit or loss includes its share of the profit or loss of the investee. The investor's other comprehensive income includes its share of the other comprehensive income of the investee. [Refer: At cost [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 8 -IssueDate 2019-01-01 -Paragraph 24 -Subparagraph a -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=8&code=ifrs-tx-2019-en-r&anchor=para_24_a&doctype=Standard -URIDate 2019-03-27 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 12 -IssueDate 2019-01-01 -Paragraph B16 -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=12&code=ifrs-tx-2019-en-r&anchor=para_B16&doctype=Appendix&subtype=B -URIDate 2019-03-27 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 1 -IssueDate 2019-01-01 -Paragraph 54 -Subparagraph e -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2019-en-r&anchor=para_54_e&doctype=Standard -URIDate 2019-03-27 + Details
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