XML 92 R69.htm IDEA: XBRL DOCUMENT
v3.19.1

Identification and Activities of the Company and Subsidiaries (Details 2) - shares | Dec. 31, 2018 | Dec. 31, 2017
--- | --- | ---
Identification and Activities of the Company and Subsidiaries [Line Items] |  |
Number of shares outstanding | 7,138,685 |
Number of Shares Outstanding, Ownership Percentage | 5.93% |
The Bank of New York Mellon, ADRs [Member] |  |
Identification and Activities of the Company and Subsidiaries [Line Items] |  |
Number of Shares Outstanding, Ownership Percentage | 13.39% | 20.74%
Sociedad de Inversiones Pampa Calichera S.A. [Member] |  |
Identification and Activities of the Company and Subsidiaries [Line Items] |  |
Number of Shares Outstanding, Ownership Percentage | 20.89% | 19.72%
Inversiones El Boldo Limitada [Member] |  |
Identification and Activities of the Company and Subsidiaries [Line Items] |  |
Number of Shares Outstanding, Ownership Percentage |  | 17.36%
Inversiones RAC Chile Limitada [Member] |  |
Identification and Activities of the Company and Subsidiaries [Line Items] |  |
Number of Shares Outstanding, Ownership Percentage |  | 8.13%
Potasios de Chile S.A. [Member] |  |
Identification and Activities of the Company and Subsidiaries [Line Items] |  |
Number of Shares Outstanding, Ownership Percentage | 6.91% | 6.91%
Inversiones PCS Chile Limitada [Member] |  |
Identification and Activities of the Company and Subsidiaries [Line Items] |  |
Number of Shares Outstanding, Ownership Percentage |  | 6.51%
Inversiones Global Mining Chile Limitada [Member] |  |
Identification and Activities of the Company and Subsidiaries [Line Items] |  |
Number of Shares Outstanding, Ownership Percentage | 3.34% | 3.34%
Banco de Chile por Cuenta de Terceros no Residentes [Member] |  |
Identification and Activities of the Company and Subsidiaries [Line Items] |  |
Number of Shares Outstanding, Ownership Percentage | 4.07% | 3.19%
Banco Itau por Cuenta de Inversionistas [Member] |  |
Identification and Activities of the Company and Subsidiaries [Line Items] |  |
Number of Shares Outstanding, Ownership Percentage |  | 2.67%
Banco Santander por cuenta de inversionistas extranjeros [Member] |  |
Identification and Activities of the Company and Subsidiaries [Line Items] |  |
Number of shares outstanding | 0 |
Number of Shares Outstanding, Ownership Percentage | 0.00% | 1.75%
Banchile C de B S A [Member] |  |
Identification and Activities of the Company and Subsidiaries [Line Items] |  |
Number of Shares Outstanding, Ownership Percentage | 1.73% |
Inversiones la Esperanza de Chile Limitada [Member] |  |
Identification and Activities of the Company and Subsidiaries [Line Items] |  |
Number of Shares Outstanding, Ownership Percentage | 1.43% |
Banco Ita through Corpbanca on behalf of foreign investors [Member] |  |
Identification and Activities of the Company and Subsidiaries [Line Items] |  |
Number of Shares Outstanding, Ownership Percentage | 3.07% |
Inversiones TLC SPA [Member] |  |
Identification and Activities of the Company and Subsidiaries [Line Items] |  |
Number of Shares Outstanding, Ownership Percentage | 23.77% |
Series A Stock [Member] | The Bank of New York Mellon, ADRs [Member] |  |
Identification and Activities of the Company and Subsidiaries [Line Items] |  |
Number of shares outstanding | 0 | 0
Number of Shares Outstanding, Ownership Percentage | 0.00% | 0.00%
Series A Stock [Member] | Sociedad de Inversiones Pampa Calichera S.A. [Member] |  |
Identification and Activities of the Company and Subsidiaries [Line Items] |  |
Number of shares outstanding | 44,894,152 | 44,894,152
Number of Shares Outstanding, Ownership Percentage | 31.43% | 31.43%
Series A Stock [Member] | Inversiones El Boldo Limitada [Member] |  |
Identification and Activities of the Company and Subsidiaries [Line Items] |  |
Number of shares outstanding |  | 29,330,326
Number of Shares Outstanding, Ownership Percentage |  | 20.54%
Series A Stock [Member] | Inversiones RAC Chile Limitada [Member] |  |
Identification and Activities of the Company and Subsidiaries [Line Items] |  |
Number of shares outstanding |  | 19,200,242
Number of Shares Outstanding, Ownership Percentage |  | 13.44%
Series A Stock [Member] | Potasios de Chile S.A. [Member] |  |
Identification and Activities of the Company and Subsidiaries [Line Items] |  |
Number of shares outstanding | 18,179,147 | 18,179,147
Number of Shares Outstanding, Ownership Percentage | 12.73% | 12.73%
Series A Stock [Member] | Inversiones PCS Chile Limitada [Member] |  |
Identification and Activities of the Company and Subsidiaries [Line Items] |  |
Number of shares outstanding |  | 15,526,000
Number of Shares Outstanding, Ownership Percentage |  | 10.87%
Series A Stock [Member] | Inversiones Global Mining Chile Limitada [Member] |  |
Identification and Activities of the Company and Subsidiaries [Line Items] |  |
Number of shares outstanding | 8,798,539 | 8,798,539
Number of Shares Outstanding, Ownership Percentage | 6.16% | 6.16%
Series A Stock [Member] | Banco de Chile por Cuenta de Terceros no Residentes [Member] |  |
Identification and Activities of the Company and Subsidiaries [Line Items] |  |
Number of shares outstanding | 15,687 | 0
Number of Shares Outstanding, Ownership Percentage | 0.01% | 0.00%
Series A Stock [Member] | Banco Itau por Cuenta de Inversionistas [Member] |  |
Identification and Activities of the Company and Subsidiaries [Line Items] |  |
Number of shares outstanding |  | 19,125
Number of Shares Outstanding, Ownership Percentage |  | 0.01%
Series A Stock [Member] | Banco Santander por cuenta de inversionistas extranjeros [Member] |  |
Identification and Activities of the Company and Subsidiaries [Line Items] |  |
Number of shares outstanding |  | 0
Number of Shares Outstanding, Ownership Percentage |  | 0.00%
Series A Stock [Member] | Banchile C de B S A [Member] |  |
Identification and Activities of the Company and Subsidiaries [Line Items] |  |
Number of shares outstanding | 528,092 |
Number of Shares Outstanding, Ownership Percentage | 0.37% |
Series A Stock [Member] | Inversiones la Esperanza de Chile Limitada [Member] |  |
Identification and Activities of the Company and Subsidiaries [Line Items] |  |
Number of shares outstanding | 3,711,598 |
Number of Shares Outstanding, Ownership Percentage | 2.60% |
Series A Stock [Member] | Banco Ita through Corpbanca on behalf of foreign investors [Member] |  |
Identification and Activities of the Company and Subsidiaries [Line Items] |  |
Number of shares outstanding | 0 |
Number of Shares Outstanding, Ownership Percentage | 0.00% |
Series A Stock [Member] | Inversiones TLC SPA [Member] |  |
Identification and Activities of the Company and Subsidiaries [Line Items] |  |
Number of shares outstanding | 62,556,568 |
Number of Shares Outstanding, Ownership Percentage | 43.80% |
Series B Stock [Member] | The Bank of New York Mellon, ADRs [Member] |  |
Identification and Activities of the Company and Subsidiaries [Line Items] |  |
Number of shares outstanding | 35,254,267 | 54,599,961
Number of Shares Outstanding, Ownership Percentage | 29.29% | 45.36%
Series B Stock [Member] | Sociedad de Inversiones Pampa Calichera S.A. [Member] |  |
Identification and Activities of the Company and Subsidiaries [Line Items] |  |
Number of shares outstanding | 10,093,154 | 7,007,688
Number of Shares Outstanding, Ownership Percentage | 8.38% | 5.82%
Series B Stock [Member] | Inversiones El Boldo Limitada [Member] |  |
Identification and Activities of the Company and Subsidiaries [Line Items] |  |
Number of shares outstanding |  | 16,363,546
Number of Shares Outstanding, Ownership Percentage |  | 13.59%
Series B Stock [Member] | Inversiones RAC Chile Limitada [Member] |  |
Identification and Activities of the Company and Subsidiaries [Line Items] |  |
Number of shares outstanding |  | 2,202,773
Number of Shares Outstanding, Ownership Percentage |  | 1.83%
Series B Stock [Member] | Potasios de Chile S.A. [Member] |  |
Identification and Activities of the Company and Subsidiaries [Line Items] |  |
Number of shares outstanding | 0 | 0
Number of Shares Outstanding, Ownership Percentage | 0.00% | 0.00%
Series B Stock [Member] | Inversiones PCS Chile Limitada [Member] |  |
Identification and Activities of the Company and Subsidiaries [Line Items] |  |
Number of shares outstanding |  | 1,600,000
Number of Shares Outstanding, Ownership Percentage |  | 1.33%
Series B Stock [Member] | Inversiones Global Mining Chile Limitada [Member] |  |
Identification and Activities of the Company and Subsidiaries [Line Items] |  |
Number of shares outstanding | 0 | 0
Number of Shares Outstanding, Ownership Percentage | 0.00% | 0.00%
Series B Stock [Member] | Banco de Chile por Cuenta de Terceros no Residentes [Member] |  |
Identification and Activities of the Company and Subsidiaries [Line Items] |  |
Number of shares outstanding | 10,703,812 | 8,394,289
Number of Shares Outstanding, Ownership Percentage | 8.89% | 6.97%
Series B Stock [Member] | Banco Itau por Cuenta de Inversionistas [Member] |  |
Identification and Activities of the Company and Subsidiaries [Line Items] |  |
Number of shares outstanding |  | 7,017,504
Number of Shares Outstanding, Ownership Percentage |  | 5.83%
Series B Stock [Member] | Banco Santander por cuenta de inversionistas extranjeros [Member] |  |
Identification and Activities of the Company and Subsidiaries [Line Items] |  |
Number of shares outstanding |  | 4,593,336
Number of Shares Outstanding, Ownership Percentage |  | 3.82%
Series B Stock [Member] | Banchile C de B S A [Member] |  |
Identification and Activities of the Company and Subsidiaries [Line Items] |  |
Number of shares outstanding | 4,028,611 |
Number of Shares Outstanding, Ownership Percentage | 3.35% |
Series B Stock [Member] | Inversiones la Esperanza de Chile Limitada [Member] |  |
Identification and Activities of the Company and Subsidiaries [Line Items] |  |
Number of shares outstanding | 46,500 |
Number of Shares Outstanding, Ownership Percentage | 0.04% |
Series B Stock [Member] | Banco Ita through Corpbanca on behalf of foreign investors [Member] |  |
Identification and Activities of the Company and Subsidiaries [Line Items] |  |
Number of shares outstanding | 8,085,730 |
Number of Shares Outstanding, Ownership Percentage | 6.72% |
Series B Stock [Member] | Inversiones TLC SPA [Member] |  |
Identification and Activities of the Company and Subsidiaries [Line Items] |  |
Number of shares outstanding | 0 |
Number of Shares Outstanding, Ownership Percentage | 0.00% |

X
- Definition The number of shares that have been authorised and issued, reduced by treasury shares held. [Refer: Treasury shares] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 1 -IssueDate 2018-01-01 -Paragraph 79 -Subparagraph a -Clause iv -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=1&date=2018-03-01&anchor=para_79_a_iv&doctype=Standard -URIDate 2018-03-16 + Details
Name: | ifrs-full_NumberOfSharesOutstanding
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | instant

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

X
- Definition Shares outstanding ownership percentage. + References No definition available. + Details
Name: | sqm_NumberOfSharesOutstandingOwnershipPercentage
Namespace Prefix: | sqm_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Details
Name: | ifrs-full_CategoriesOfRelatedPartiesAxis=sqm_BankOfNewYorkMellonAdrsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_CategoriesOfRelatedPartiesAxis=sqm_SociedadDeInversionesPampaCalicheraSaMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_CategoriesOfRelatedPartiesAxis=sqm_InversionesElBoldoLimitadaMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_CategoriesOfRelatedPartiesAxis=sqm_InversionesRacChileLimitadaMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_CategoriesOfRelatedPartiesAxis=sqm_PotasiosDeChileSaMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_CategoriesOfRelatedPartiesAxis=sqm_InversionesPcsChileLimitadaMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_CategoriesOfRelatedPartiesAxis=sqm_InversionesGlobalMiningChileLimitadaMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_CategoriesOfRelatedPartiesAxis=sqm_BancoDeChilePorCuentaDeTercerosNoResidentesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_CategoriesOfRelatedPartiesAxis=sqm_BancoItauPorCuentaDeInversionistasMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_CategoriesOfRelatedPartiesAxis=sqm_BancoSantanderPorCuentaDeInversionistasExtranjerosMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_CategoriesOfRelatedPartiesAxis=sqm_BanchileCDeBSAMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_CategoriesOfRelatedPartiesAxis=sqm_InversionesLaEsperanzaDeChileLimitadaMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_CategoriesOfRelatedPartiesAxis=sqm_BancoItaThroughCorpbancaOnBehalfOfForeignInvestorsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_CategoriesOfRelatedPartiesAxis=sqm_InversionesTLCSPAMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementClassOfStockAxis=sqm_SeriesStockMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementClassOfStockAxis=sqm_SeriesBStockMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |