XML 82 R59.htm IDEA: XBRL DOCUMENT
v3.19.1

Contingencies and restrictions (Tables) | 12 Months Ended
--- | ---
Dec. 31, 2018
Disclosure of contingent liability [Abstract] |
Disclosure of detailed information about financial indicators [Text Block] | As of December 31, 2018, the above mentioned financial indicator has the following values:
Indicator |  | 12/31/2018 |  |  | 12/31/2017 |
Leverage |  |  | 1.00 |  |  |  | 0.91 |
Disclosure of detailed information about grantor obligations [Text Block] |
Grantor |  | Relationship |  |  | 12/31/2018 |  |  | 12/31/2017 |
|  |  |  |  | ThUS$ |  |  | ThUS$ |
Ferosor Agrícola S.A. |  |  | Unrelated third party |  |  |  | 3,598 |  |  |  | 4,067 |
Tattersall Agroinsumos S.A. |  |  | Unrelated third party |  |  |  | 2,000 |  |  |  | 2,000 |
Contador Frutos S.A. |  |  | Unrelated third party |  |  |  | 1,587 |  |  |  | 1,743 |
Agrícola Lobert Ltda. |  |  | Unrelated third party |  |  |  | - |  |  |  | 1,264 |
Covepa SPA |  |  | Unrelated third party |  |  |  | 720 |  |  |  | 813 |
Johannes Epple Davanzo |  |  | Unrelated third party |  |  |  | 321 |  |  |  | 363 |
Hortofrutícola La Serena |  |  | Unrelated third party |  |  |  | 294 |  |  |  | 323 |
Juan Luis Gaete Chesta |  |  | Unrelated third party |  |  |  | 195 |  |  |  | 262 |
Arena Fertilizantes y Semillas |  |  | Unrelated third party |  |  |  | 216 |  |  |  | 244 |
Vicente Oyarce Castro |  |  | Unrelated third party |  |  |  | 222 |  |  |  | 244 |
Soc. Agrocom. Julio Polanco |  |  | Unrelated third party |  |  |  | 144 |  |  |  | 163 |
Bernardo Guzmán Schmidt |  |  | Unrelated third party |  |  |  | 126 |  |  |  | 138 |
Gilberto Rivas Y Cia. Ltda. |  |  | Unrelated third party |  |  |  | - |  |  |  | 138 |
Lemp Martin Julian |  |  | Unrelated third party |  |  |  | - |  |  |  | 124 |
Comercial Agrosal Ltda. |  |  | Unrelated third party |  |  |  | - |  |  |  | 116 |
Soc.Comercial el Mimbral |  |  | Unrelated third party |  |  |  | - |  |  |  | 101 |
Total |  |  |  |  |  |  | 9,423 |  |  |  | 12,103 |

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

X
- References No definition available. + Details
Name: | sqm_DisclosureOfDetailedInformationAboutFinancialIndicatorsTextBlock
Namespace Prefix: | sqm_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- References No definition available. + Details
Name: | sqm_DisclosureOfDetailedInformationAboutGrantorObligationsTextBlock
Namespace Prefix: | sqm_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration