XML 127 R104.htm IDEA: XBRL DOCUMENT
v3.8.0.1

Financial instruments (Details 8) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2017 USD ($)
Series H bonds [Member] |
Financial instruments [Line Items] |
Contract amount | $ 191,638
Currency | UF
Derivative contracts, Maturity | Jan. 05, 2018
Series O bonds [Member] |
Financial instruments [Line Items] |
Contract amount | $ 58,748
Currency | UF
Derivative contracts, Maturity | Feb. 01, 2022

X
- Definition The amount of contractual undiscounted cash flows in relation to contractual amounts to be exchanged in a derivative financial instrument for which gross cash flows are exchanged. [Refer: Derivatives [member]] + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Name IFRS -Number 7 -IssueDate 2017-01-01 -Paragraph B11D -Subparagraph d -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IFRS&num=7&date=2017-03-01&anchor=para_B11D_d&doctype=Appendix&seq=2 -URIDate 2017-03-09 + Details
Name: | ifrs-full_ContractualAmountsToBeExchangedInDerivativeFinancialInstrumentForWhichGrossCashFlowsAreExchanged
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition The description of the currency of the primary economic environment in which the entity operates. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 21 -IssueDate 2017-01-01 -Paragraph 53 -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=21&date=2017-03-01&anchor=para_53&doctype=Standard -URIDate 2017-03-09 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 21 -IssueDate 2017-01-01 -Paragraph 57 -Subparagraph c -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=21&date=2017-03-01&anchor=para_57_c&doctype=Standard -URIDate 2017-03-09 + Details
Name: | ifrs-full_DescriptionOfFunctionalCurrency
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The maturity date of derivative contracts. + References No definition available. + Details
Name: | sqm_DerivativeContractsMaturity
Namespace Prefix: | sqm_
Data Type: | xbrli:dateItemType
Balance Type: | na
Period Type: | duration

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

X
- Details
Name: | ifrs-full_ClassesOfFinancialInstrumentsAxis=sqm_SeriesHBondsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfFinancialInstrumentsAxis=sqm_SeriesOBondsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |