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v3.22.1

Other current and non-current non-financial assets (Details 3) - USD ($) $ in Thousands | 12 Months Ended |
--- | --- | ---
Dec. 31, 2021 | Dec. 31, 2020 | Dec. 30, 2020
Disclosure Of Detailed Information About Reconciliation Of Explorations In Execution [Line Items] |  |  |
Opening balance | $ 14,265 |  | $ 18,654
Disbursements | 11,964 | $ 0 |
Reclassifications | (13,314) | (4,389) |
Total changes | (1,350) | $ (4,389) |
Total | $ 12,915 |  | $ 14,265

X
- Definition Changes of explorations in execution. + References No definition available. + Details
Name: | sqm_ChangesOfExplorationsInExecution
Namespace Prefix: | sqm_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Disbursements of explorations in execution. + References No definition available. + Details
Name: | sqm_DisbursementsOfExplorationsInExecution
Namespace Prefix: | sqm_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Disclosure of detailed information about conciliation of explorations in execution. + References No definition available. + Details
Name: | sqm_DisclosureOfDetailedInformationAboutConciliationOfExplorationsInExecutionLineItems
Namespace Prefix: | sqm_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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- Definition Explorations in execution. + References No definition available. + Details
Name: | sqm_ExplorationsInExecution
Namespace Prefix: | sqm_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Reclassifications of explorations in execution. + References No definition available. + Details
Name: | sqm_ReclassificationsOfExplorationsInExecution
Namespace Prefix: | sqm_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Total explorations in execution. + References No definition available. + Details
Name: | sqm_TotalExplorationsInExecution
Namespace Prefix: | sqm_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant