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v3.20.4

Lawsuits and complaints (Details Textual) - USD ($) | 12 Months Ended |
--- | --- | ---
Dec. 31, 2020 | Dec. 18, 2020
Disclosure of lawsuits and complaints [Line Items] |  |
Term at which Department of Justice agreed not to prosecute those charges against Company | 3 years |
External monitor, term | 24 months |
Lawsuits, nominal value | $ 515,000 |
Lawsuit fifteen [Member] |  |
Disclosure of lawsuits and complaints [Line Items] |  |
Lawsuits, nominal value | 713,000 | $ 436,000,000
Department of Justice [Member] |  |
Disclosure of lawsuits and complaints [Line Items] |  |
Legal proceedings, amount agreed to pay | $ 15,487,500 |

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- References No definition available. + Details
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Namespace Prefix: | sqm_
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- Definition The term for external monitor. + References No definition available. + Details
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Namespace Prefix: | sqm_
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Balance Type: | na
Period Type: | duration

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- Definition Describes the nominal value of damages awarded to the plaintiff in the legal matter. + References No definition available. + Details
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Data Type: | xbrli:monetaryItemType
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- Definition The amount agreed to pay under legal proceedings. + References No definition available. + Details
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- Definition Term at which Department of Justice agreed not to prosecute those charges against Company + References No definition available. + Details
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- Details
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Namespace Prefix: |
Data Type: | na
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Period Type: |

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- Details
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Namespace Prefix: |
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Balance Type: |
Period Type: |