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Other current and non-current non-financial assets (Details 5) - Metallic exploration [Member] - Chile - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2021 | Dec. 31, 2020
Detailed Information About Reconciliation Of Economically Feasible Metalic Explorations [Line Items] |  |
Opening balance | $ 10,872 | $ 10,009
Additions | 8,071 | 0
Reclassifications from Exploration in execution – Chile | 1,906 | 863
Reclassifications to Exploration in Exploitation-Chile | (2,695) | 0
Total changes | 7,282 | 863
Total | $ 18,154 | $ 10,872

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- Definition Additions to exploration and evaluation. + References No definition available. + Details
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Balance Type: | debit
Period Type: | duration

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- Definition Advanced exploration. + References No definition available. + Details
Name: | sqm_AdvancedExploration
Namespace Prefix: | sqm_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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- Definition Changes related to prospecting conciliation of exploration and evaluation. + References No definition available. + Details
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- Definition Detailed information about reconciliation of economically feasible metalic explorations. + References No definition available. + Details
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- Definition Reclassification from exploration in execution. + References No definition available. + Details
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- Definition Reclassifications to exploration in exploitation. + References No definition available. + Details
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Namespace Prefix: | sqm_
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- Definition Reimbursements for exploration and evaluation. + References No definition available. + Details
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Namespace Prefix: | sqm_
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Balance Type: | debit
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- Details
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Namespace Prefix: |
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- Details
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