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Other current and non-current non-financial assets - Conciliation of Explorations in Execution (Details) - USD ($) $ in Thousands | 12 Months Ended |
--- | --- | ---
Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021
Other Current And Non-Current Non-Financial Assets |  |  |
Opening balance |  | $ 3,699 | $ 1,000
Disbursements | $ 6,095 | 4,227 |
Reclassifications | (732) | (1,528) |
Total changes | 5,363 | 2,699 |
Total | $ 9,062 | $ 3,699 |

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

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- 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

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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

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- Definition Other Current And Non-Current Non-Financial Assets + References No definition available. + Details
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Namespace Prefix: | sqm_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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