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Intangible assets and goodwill (Details Textual) $ in Thousands | 12 Months Ended
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Dec. 31, 2021 USD ($)
Disclosure Of Intangible Assets And Goodwill [Line Items] |
Goodwill derecognised without having previously been included in disposal group classified as held for sale | $ 7,370

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- Definition The amount of goodwill derecognised without having previously been included in a disposal group classified as held for sale. [Refer: Goodwill; Disposal groups classified as held for sale [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 3 -IssueDate 2021-01-01 -Paragraph B67 -Subparagraph d -Clause iv -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=3&code=ifrs-tx-2021-en-r&anchor=para_B67_d_iv&doctype=Appendix&subtype=B -URIDate 2021-03-24 + Details
Name: | ifrs-full_GoodwillDerecognisedWithoutHavingPreviouslyBeenIncludedInDisposalGroupClassifiedAsHeldForSale
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

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- References No definition available. + Details
Name: | sqm_DisclosureOfIntangibleAssetsAndGoodwillLineItems
Namespace Prefix: | sqm_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration