XML 217 R194.htm IDEA: XBRL DOCUMENT
v3.8.0.1

Income tax and deferred taxes (Details 6) - USD ($) $ in Thousands | Dec. 31, 2017 | Dec. 31, 2016
--- | --- | ---
Disclosure of Income tax and deferred taxes [Line Items] |  |
Assets (liabilities) | $ 1,277 | $ 3,042
Tax losses (NOL’s) |  |
Disclosure of Income tax and deferred taxes [Line Items] |  |
Assets (liabilities) | 37 | 56
Doubtful accounts impairment |  |
Disclosure of Income tax and deferred taxes [Line Items] |  |
Assets (liabilities) | 48 | 79
Inventory impairment |  |
Disclosure of Income tax and deferred taxes [Line Items] |  |
Assets (liabilities) | 1,347 | 2,871
Pensions plan |  |
Disclosure of Income tax and deferred taxes [Line Items] |  |
Assets (liabilities) | 1 | 297
Accrued vacations |  |
Disclosure of Income tax and deferred taxes [Line Items] |  |
Assets (liabilities) | 19 | 29
Depreciation |  |
Disclosure of Income tax and deferred taxes [Line Items] |  |
Assets (liabilities) | (139) | (245)
Other |  |
Disclosure of Income tax and deferred taxes [Line Items] |  |
Assets (liabilities) | $ (36) | $ (45)

X
- References No definition available. + Details
Name: | sqm_DisclosureOfIncomeTaxAndDeferredTaxesLineItems
Namespace Prefix: | sqm_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The amount of unrecognized deferred tax assets net of deferred tax liabilities. + References No definition available. + Details
Name: | sqm_UnrecognizedDeferredTaxAssetsLiabilities
Namespace Prefix: | sqm_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Details
Name: | ifrs-full_TemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsAxis=sqm_TaxLossesNolsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_TemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsAxis=sqm_DoubtfulAccountsImpairmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_TemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsAxis=sqm_InventoryImpairmentlMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_TemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsAxis=sqm_PensionsPlanMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_TemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsAxis=sqm_AccruedVacationsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_TemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsAxis=sqm_DepreciationMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_TemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsAxis=sqm_OtherMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |