XML 105 R82.htm IDEA: XBRL DOCUMENT
v3.8.0.1

Cash and cash equivalents (Details 1) - USD ($) $ in Thousands | Dec. 31, 2017 | Dec. 31, 2016
--- | --- | ---
Cash and Cash Equivalents [Line Items] |  |
Short-term investments, classified as cash equivalents | $ 287,797 | $ 337,396
Legg Mason - Western Asset Institutional Cash Reserves [Member] |  |
Cash and Cash Equivalents [Line Items] |  |
Short-term investments, classified as cash equivalents | 144,464 | 178,446
JP Morgan US dollar Liquidity Fund Institutional [Member] |  |
Cash and Cash Equivalents [Line Items] |  |
Short-term investments, classified as cash equivalents | $ 143,333 | $ 158,950

X
- Definition A classification of cash equivalents representing short-term investments. [Refer: Cash equivalents] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 7 -IssueDate 2017-01-01 -Paragraph 45 -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=7&date=2017-03-01&anchor=para_45&doctype=Standard -URIDate 2017-03-09 + Details
Name: | ifrs-full_ShorttermInvestmentsClassifiedAsCashEquivalents
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
Name: | us-gaap_CashAndCashEquivalentsLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | ifrs-full_SeparateManagementEntitiesAxis=sqm_LeggMasonInstitutionMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_SeparateManagementEntitiesAxis=sqm_JpMorganIntitutionMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |