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Intangible assets and goodwill (Details 5) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2021 | Dec. 31, 2020
Disclosure of reconciliation of changes in goodwill [line items] |  |  |  |
Goodwill Begining Balance |  | $ 41,966 |  | $ 34,726
Additional |  | 0 |  | 7,380
Impairment losses |  | 0 |  | (140)
Total increase (decrease) |  | (7,370) |  | 7,240
Goodwill Ending Balance |  | 34,596 |  | 41,966
Gross carrying amount [member] |  |  |  |
Disclosure of reconciliation of changes in goodwill [line items] |  |  |  |
Goodwill Begining Balance |  | 45,500 |  | 38,120
Additional |  | 0 |  | 7,380
Impairment losses |  | 0 |  | 0
Total increase (decrease) |  | (7,370) |  | 7,380
Goodwill Ending Balance |  | 38,130 |  | 45,500
Accumulated impairment [member] |  |  |  |
Disclosure of reconciliation of changes in goodwill [line items] |  |  |  |
Goodwill Begining Balance |  | (3,534) |  | (3,394)
Additional |  | 0 |  | 0
Impairment losses |  | 0 |  | (140)
Total increase (decrease) |  | 0 |  | (140)
Goodwill Ending Balance |  | (3,534) |  | (3,534)
SQM Industrial SA [Member] |  |  |  |
Disclosure of reconciliation of changes in goodwill [line items] |  |  |  |
Goodwill Begining Balance |  | 0 |  | 0
Additional |  | 0 |  | 0
Impairment losses |  | 0 |  | 0
Total increase (decrease) |  | 0 |  | 0
Goodwill Ending Balance |  | 0 |  | 0
SQM Industrial SA [Member] | Gross carrying amount [member] |  |  |  |
Disclosure of reconciliation of changes in goodwill [line items] |  |  |  |
Goodwill Begining Balance |  | 3,214 |  | 3,214
Additional |  | 0 |  | 0
Impairment losses |  | 0 |  | 0
Total increase (decrease) |  | 0 |  | 0
Goodwill Ending Balance |  | 3,214 |  | 3,214
SQM Industrial SA [Member] | Accumulated impairment [member] |  |  |  |
Disclosure of reconciliation of changes in goodwill [line items] |  |  |  |
Goodwill Begining Balance |  | (3,214) |  | (3,214)
Additional |  | 0 |  | 0
Impairment losses |  | 0 |  | 0
Total increase (decrease) |  | 0 |  | 0
Goodwill Ending Balance |  | (3,214) |  | (3,214)
SQM S.A [Member] |  |  |  |
Disclosure of reconciliation of changes in goodwill [line items] |  |  |  |
Goodwill Begining Balance |  | 22,255 |  | 22,255
Additional |  | 0 |  | 0
Impairment losses |  | 0 |  | 0
Total increase (decrease) |  | 0 |  | 0
Goodwill Ending Balance |  | 22,255 |  | 22,255
SQM S.A [Member] | Gross carrying amount [member] |  |  |  |
Disclosure of reconciliation of changes in goodwill [line items] |  |  |  |
Goodwill Begining Balance |  | 22,255 |  | 22,255
Additional |  | 0 |  | 0
Impairment losses |  | 0 |  | 0
Total increase (decrease) |  | 0 |  | 0
Goodwill Ending Balance |  | 22,255 |  | 22,255
SQM S.A [Member] | Accumulated impairment [member] |  |  |  |
Disclosure of reconciliation of changes in goodwill [line items] |  |  |  |
Goodwill Begining Balance |  | 0 |  | 0
Additional |  | 0 |  | 0
Impairment losses |  | 0 |  | 0
Total increase (decrease) |  | 0 |  | 0
Goodwill Ending Balance |  | 0 |  | 0
SQM Iberian S.A. [Member] |  |  |  |
Disclosure of reconciliation of changes in goodwill [line items] |  |  |  |
Goodwill Begining Balance |  | 148 |  | 148
Additional |  | 0 |  | 0
Impairment losses |  | 0 |  | 0
Total increase (decrease) |  | 0 |  | 0
Goodwill Ending Balance |  | 148 |  | 148
SQM Iberian S.A. [Member] | Gross carrying amount [member] |  |  |  |
Disclosure of reconciliation of changes in goodwill [line items] |  |  |  |
Goodwill Begining Balance |  | 148 |  | 148
Additional |  | 0 |  | 0
Impairment losses |  | 0 |  | 0
Total increase (decrease) |  | 0 |  | 0
Goodwill Ending Balance |  | 148 |  | 148
SQM Iberian S.A. [Member] | Accumulated impairment [member] |  |  |  |
Disclosure of reconciliation of changes in goodwill [line items] |  |  |  |
Goodwill Begining Balance |  | 0 |  | 0
Additional |  | 0 |  | 0
Impairment losses |  | 0 |  | 0
Total increase (decrease) |  | 0 |  | 0
Goodwill Ending Balance |  | 0 |  | 0
SQM Investment Corporation N.V. [Member] |  |  |  |
Disclosure of reconciliation of changes in goodwill [line items] |  |  |  |
Goodwill Begining Balance |  | 86 |  | 86
Additional |  | 0 |  | 0
Impairment losses |  | 0 |  | 0
Total increase (decrease) |  | 0 |  | 0
Goodwill Ending Balance |  | 86 |  | 86
SQM Investment Corporation N.V. [Member] | Gross carrying amount [member] |  |  |  |
Disclosure of reconciliation of changes in goodwill [line items] |  |  |  |
Goodwill Begining Balance |  | 86 |  | 86
Additional |  | 0 |  | 0
Impairment losses |  | 0 |  | 0
Total increase (decrease) |  | 0 |  | 0
Goodwill Ending Balance |  | 86 |  | 86
SQM Investment Corporation N.V. [Member] | Accumulated impairment [member] |  |  |  |
Disclosure of reconciliation of changes in goodwill [line items] |  |  |  |
Goodwill Begining Balance |  | 0 |  | 0
Additional |  | 0 |  | 0
Impairment losses |  | 0 |  | 0
Total increase (decrease) |  | 0 |  | 0
Goodwill Ending Balance |  | 0 |  | 0
Soquimich Comercial S.A. [Member] |  |  |  |
Disclosure of reconciliation of changes in goodwill [line items] |  |  |  |
Goodwill Begining Balance |  | 0 |  | 140
Additional |  | 0 |  | 0
Impairment losses |  | 0 |  | (140)
Total increase (decrease) |  | 0 |  | (140)
Goodwill Ending Balance |  | 0 |  | 0
Soquimich Comercial S.A. [Member] | Gross carrying amount [member] |  |  |  |
Disclosure of reconciliation of changes in goodwill [line items] |  |  |  |
Goodwill Begining Balance |  | 320 |  | 320
Additional |  | 0 |  | 0
Impairment losses |  | 0 |  | 0
Total increase (decrease) |  | 0 |  | 0
Goodwill Ending Balance |  | 320 |  | 320
Soquimich Comercial S.A. [Member] | Accumulated impairment [member] |  |  |  |
Disclosure of reconciliation of changes in goodwill [line items] |  |  |  |
Goodwill Begining Balance |  | (320) |  | (180)
Additional |  | 0 |  | 0
Impairment losses |  | 0 |  | (140)
Total increase (decrease) |  | 0 |  | (140)
Goodwill Ending Balance |  | (320) |  | (320)
Soquimich European Holding B.V. [Member] |  |  |  |
Disclosure of reconciliation of changes in goodwill [line items] |  |  |  |
Goodwill Begining Balance |  | 11,383 |  | 11,373
Additional |  | 0 |  | 10
Impairment losses |  | 0 |  | 0
Total increase (decrease) |  | 0 |  | 10
Goodwill Ending Balance |  | 11,383 |  | 11,383
Soquimich European Holding B.V. [Member] | Gross carrying amount [member] |  |  |  |
Disclosure of reconciliation of changes in goodwill [line items] |  |  |  |
Goodwill Begining Balance |  | 11,383 |  | 11,373
Additional |  | 0 |  | 10
Impairment losses |  | 0 |  | 0
Total increase (decrease) |  | 0 |  | 10
Goodwill Ending Balance |  | 11,383 |  | 11,383
Soquimich European Holding B.V. [Member] | Accumulated impairment [member] |  |  |  |
Disclosure of reconciliation of changes in goodwill [line items] |  |  |  |
Goodwill Begining Balance |  | 0 |  | 0
Additional |  | 0 |  | 0
Impairment losses |  | 0 |  | 0
Total increase (decrease) |  | 0 |  | 0
Goodwill Ending Balance |  | 0 |  | 0
SQM Holland B.V. [Member] |  |  |  |
Disclosure of reconciliation of changes in goodwill [line items] |  |  |  |
Goodwill Begining Balance |  | 7,370 |  | 0
Additional |  | 0 |  | 7,370
Impairment losses |  | 0 |  | 0
Total increase (decrease) |  | (7,370) |  | 7,370
Goodwill Ending Balance |  | 0 |  | 7,370
SQM Holland B.V. [Member] | Gross carrying amount [member] |  |  |  |
Disclosure of reconciliation of changes in goodwill [line items] |  |  |  |
Goodwill Begining Balance |  | 7,370 | [1] | 0
Additional |  | 0 | [1] | 7,370
Impairment losses |  | 0 | [1] | 0
Total increase (decrease) |  | (7,370) | [1] | 7,370
Goodwill Ending Balance | [1] | 0 |  | 7,370
SQM Holland B.V. [Member] | Accumulated impairment [member] |  |  |  |
Disclosure of reconciliation of changes in goodwill [line items] |  |  |  |
Goodwill Begining Balance |  | 0 |  | 0
Additional |  | 0 |  | 0
Impairment losses |  | 0 |  | 0
Total increase (decrease) |  | 0 |  | 0
Goodwill Ending Balance |  | 0 |  | 0
SQM Potasio SA [Member] |  |  |  |
Disclosure of reconciliation of changes in goodwill [line items] |  |  |  |
Goodwill Begining Balance |  | 724 |  | 724
Additional |  | 0 |  | 0
Impairment losses |  | 0 |  | 0
Total increase (decrease) |  | 0 |  | 0
Goodwill Ending Balance |  | 724 |  | 724
SQM Potasio SA [Member] | Gross carrying amount [member] |  |  |  |
Disclosure of reconciliation of changes in goodwill [line items] |  |  |  |
Goodwill Begining Balance |  | 724 |  | 724
Additional |  | 0 |  | 0
Impairment losses |  | 0 |  | 0
Total increase (decrease) |  | 0 |  | 0
Goodwill Ending Balance |  | 724 |  | 724
SQM Potasio SA [Member] | Accumulated impairment [member] |  |  |  |
Disclosure of reconciliation of changes in goodwill [line items] |  |  |  |
Goodwill Begining Balance |  | 0 |  | 0
Additional |  | 0 |  | 0
Impairment losses |  | 0 |  | 0
Total increase (decrease) |  | 0 |  | 0
Goodwill Ending Balance |  | $ 0 |  | $ 0
[1] | The measurement of assets and liabilities related to the acquisition of the WNSPK (see Note 7) was completed in 2021 and as a result, Th$7,370 was identified as intellectual property and reclassified from goodwill accordingly.

X
- Definition The amount of additional goodwill recognised, except goodwill included in a disposal group that, on acquisition, meets the criteria to be classified as held for sale in accordance with IFRS 5. [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 ii -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=3&code=ifrs-tx-2021-en-r&anchor=para_B67_d_ii&doctype=Appendix&subtype=B -URIDate 2021-03-24 + Details
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- Definition The amount of assets representing the future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognised. [Refer: Business combinations [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 3 -IssueDate 2021-01-01 -Paragraph B67 -Subparagraph d -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=3&code=ifrs-tx-2021-en-r&anchor=para_B67_d&doctype=Appendix&subtype=B -URIDate 2021-03-24 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 36 -IssueDate 2021-01-01 -Paragraph 134 -Subparagraph a -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=36&code=ifrs-tx-2021-en-r&anchor=para_134_a&doctype=Standard -URIDate 2021-03-24 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 36 -IssueDate 2021-01-01 -Paragraph 135 -Subparagraph a -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=36&code=ifrs-tx-2021-en-r&anchor=para_135_a&doctype=Standard -URIDate 2021-03-24 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 1 -IssueDate 2021-01-01 -Paragraph 54 -Subparagraph c -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2021-en-r&anchor=para_54_c&doctype=Standard -URIDate 2021-03-24 + Details
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