XML 219 R68.htm IDEA: XBRL DOCUMENT
v3.20.1

Identification and Activities of the Company and Subsidiaries (Details 2) - shares | Dec. 31, 2019 | Dec. 31, 2018
--- | --- | ---
Identification and Activities of the Company and Subsidiaries [Line Items] |  |
Number of shares outstanding |  | 7,138,685
Number of Shares Outstanding, Ownership Percentage |  | 2.71%
The Bank of New York Mellon, ADRs [Member] |  |
Identification and Activities of the Company and Subsidiaries [Line Items] |  |
Number of Shares Outstanding, Ownership Percentage | 14.56% | 13.39%
Sociedad de Inversiones Pampa Calichera S.A. [Member] |  |
Identification and Activities of the Company and Subsidiaries [Line Items] |  |
Number of Shares Outstanding, Ownership Percentage | 18.50% | 20.89%
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 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 Non Resident Third Party Accounts [Member] |  |
Identification and Activities of the Company and Subsidiaries [Line Items] |  |
Number of Shares Outstanding, Ownership Percentage | 2.60% | 4.07%
Banco Itau via Foreign Investor Accounts [Member] |  |
Identification and Activities of the Company and Subsidiaries [Line Items] |  |
Number of Shares Outstanding, Ownership Percentage | 2.80% | 3.07%
Banco Santander via Foreign Investor [Member] |  |
Identification and Activities of the Company and Subsidiaries [Line Items] |  |
Number of shares outstanding |  | 0
Number of Shares Outstanding, Ownership Percentage | 2.51% | 0.00%
Euroamerica C de B SA [Member] |  |
Identification and Activities of the Company and Subsidiaries [Line Items] |  |
Number of Shares Outstanding, Ownership Percentage | 1.85% |
Banchile C de B S A [Member] |  |
Identification and Activities of the Company and Subsidiaries [Line Items] |  |
Number of Shares Outstanding, Ownership Percentage | 1.82% | 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 | 1.59% | 1.43%
Inversiones TLC SPA [Member] |  |
Identification and Activities of the Company and Subsidiaries [Line Items] |  |
Number of Shares Outstanding, Ownership Percentage | 23.77% | 23.77%
Santiago stock exchanges [Member] |  |
Identification and Activities of the Company and Subsidiaries [Line Items] |  |
Number of Shares Outstanding, Ownership Percentage | 1.18% |
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] | 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 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 Non Resident Third Party Accounts [Member] |  |
Identification and Activities of the Company and Subsidiaries [Line Items] |  |
Number of shares outstanding | 109 | 15,687
Number of Shares Outstanding, Ownership Percentage | 0.00% | 0.01%
Series A Stock [Member] | Banco Itau via Foreign Investor Accounts [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] | Banco Santander via Foreign Investor [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] | Euroamerica C de B SA [Member] |  |
Identification and Activities of the Company and Subsidiaries [Line Items] |  |
Number of shares outstanding | 3,056 |
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 | 491,729 | 528,092
Number of Shares Outstanding, Ownership Percentage | 0.34% | 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 | 4,147,263 | 3,711,598
Number of Shares Outstanding, Ownership Percentage | 2.90% | 2.60%
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 | 62,556,568
Number of Shares Outstanding, Ownership Percentage | 43.80% | 43.80%
Series A Stock [Member] | Santiago stock exchanges [Member] |  |
Identification and Activities of the Company and Subsidiaries [Line Items] |  |
Number of shares outstanding | 30,590 |
Number of Shares Outstanding, Ownership Percentage | 0.02% |
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 | 38,311,788 | 35,254,267
Number of Shares Outstanding, Ownership Percentage | 31.83% | 29.29%
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 | 3,793,154 | 10,093,154
Number of Shares Outstanding, Ownership Percentage | 3.15% | 8.38%
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 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 Non Resident Third Party Accounts [Member] |  |
Identification and Activities of the Company and Subsidiaries [Line Items] |  |
Number of shares outstanding | 6,842,746 | 10,703,812
Number of Shares Outstanding, Ownership Percentage | 5.68% | 8.89%
Series B Stock [Member] | Banco Itau via Foreign Investor Accounts [Member] |  |
Identification and Activities of the Company and Subsidiaries [Line Items] |  |
Number of shares outstanding | 7,373,216 | 8,085,730
Number of Shares Outstanding, Ownership Percentage | 6.13% | 6.72%
Series B Stock [Member] | Banco Santander via Foreign Investor [Member] |  |
Identification and Activities of the Company and Subsidiaries [Line Items] |  |
Number of shares outstanding | 6,618,416 |
Number of Shares Outstanding, Ownership Percentage | 5.50% | 5.93%
Series B Stock [Member] | Euroamerica C de B SA [Member] |  |
Identification and Activities of the Company and Subsidiaries [Line Items] |  |
Number of shares outstanding | 4,863,467 |
Number of Shares Outstanding, Ownership Percentage | 4.04% |
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 | 4,285,696 | 4,028,611
Number of Shares Outstanding, Ownership Percentage | 3.56% | 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 | 46,500
Number of Shares Outstanding, Ownership Percentage | 0.04% | 0.04%
Series B Stock [Member] | Inversiones TLC SPA [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] | Santiago stock exchanges [Member] |  |
Identification and Activities of the Company and Subsidiaries [Line Items] |  |
Number of shares outstanding | 3,077,930 |
Number of Shares Outstanding, Ownership Percentage | 2.56% |

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 2019-01-01 -Paragraph 79 -Subparagraph a -Clause iv -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2019-en-r&anchor=para_79_a_iv&doctype=Standard -URIDate 2019-03-27 + 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_PotasiosDeChileSaMember
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_BancoDeChileNonResidentThirdPartyAccountsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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

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

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

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

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

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