XML 196 R170.htm IDEA: XBRL DOCUMENT
v3.20.4

Disclosures on reserves in Equity (Details Textual) - USD ($) $ / shares in Units, $ in Thousands |  |  | 12 Months Ended |  |
--- | --- | --- | --- | --- | ---
Sep. 29, 2020 | May 19, 2020 | Dec. 31, 2020 | Dec. 31, 2019 | Apr. 23, 2020 | Dec. 31, 2018
Disclosure of Disclosures on equity [Line Items] |  |  |  |  |  |
Dividend payable per share |  |  |  |  | $ 1.05668 |
interim dividend per share |  | $ 0.17092 |  |  |  |
Provisional dividend paid, Per share |  |  |  | $ 0.80254 |  |
Maximum Threshold Percentage Of Issued Capital For Issuance Of Series B shares |  |  |  | 50.00% |  |
Minimum Percentage Required TO Call Ordinary Or Extraordinary Meeting |  |  | 5.00% |  |  |
Number Of Consecutive Limitation Period Of Series B shares |  |  | 50 years |  |  |
Contractual capital commitments |  |  | $ 0 |  |  |
Special dividend per share | 0.37994 |  |  |  |  |
Series A preferred shares [Member] |  |  |  |  |  |
Disclosure of Disclosures on equity [Line Items] |  |  |  |  |  |
Number of shares issued and fully paid |  |  | 142,819,552 | 142,819,552 |  | 142,819,552
Series B preferred shares [Member] |  |  |  |  |  |
Disclosure of Disclosures on equity [Line Items] |  |  |  |  |  |
Number of shares issued and fully paid |  |  | 120,376,972 | 120,376,972 |  | 120,376,972
Bottom of range [member] |  |  |  |  |  |
Disclosure of Disclosures on equity [Line Items] |  |  |  |  |  |
Cash dividend rate |  |  | 30.00% |  |  |

X
- Definition The amount of capital commitments for which the entity has entered into a contract. [Refer: Capital commitments] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2020-01-01 -Paragraph 112 -Subparagraph c -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2020-en-r&anchor=para_112_c&doctype=Standard -URIDate 2020-01-01 + Details
Name: | ifrs-full_ContractualCapitalCommitments
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition The number of shares issued by the entity, for which full payment has been received. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 1 -IssueDate 2020-01-01 -Paragraph 79 -Subparagraph a -Clause ii -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2020-en-r&anchor=para_79_a_ii&doctype=Standard -URIDate 2020-01-01 + Details
Name: | ifrs-full_NumberOfSharesIssuedAndFullyPaid
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | instant

X
- Definition The percentage of cash dividend the company expected to pay. + References No definition available. + Details
Name: | sqm_CashDividendRate
Namespace Prefix: | sqm_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

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

X
- Definition The per share amount of dividend payable. + References No definition available. + Details
Name: | sqm_DividendPayablePerShare
Namespace Prefix: | sqm_
Data Type: | num:perShareItemType
Balance Type: | na
Period Type: | instant

X
- Definition The amount of per share interim dividend. + References No definition available. + Details
Name: | sqm_InterimDividendPerShare
Namespace Prefix: | sqm_
Data Type: | num:perShareItemType
Balance Type: | na
Period Type: | duration

X
- Definition Maximum Threshold Percentage Of Issued Capital For Issuance Of Series B shares. + References No definition available. + Details
Name: | sqm_MaximumThresholdPercentageOfIssuedCapitalForIssuanceOfSeriesBShares
Namespace Prefix: | sqm_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Minimum Percentage Required TO Call Ordinary Or Extraordinary Meeting. + References No definition available. + Details
Name: | sqm_MinimumPercentageRequiredToCallOrdinaryOrExtraordinaryMeeting
Namespace Prefix: | sqm_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Number Of Consecutive Limitation Period Of Series B shares. + References No definition available. + Details
Name: | sqm_NumberOfConsecutiveLimitationPeriodOfSeriesBShares
Namespace Prefix: | sqm_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Definition The amount of provisional dividends paid by the entity. + References No definition available. + Details
Name: | sqm_ProvisionalDividendPaidPerShare
Namespace Prefix: | sqm_
Data Type: | num:perShareItemType
Balance Type: | na
Period Type: | duration

X
- Definition Special dividend per share. + References No definition available. + Details
Name: | sqm_SpecialDividendPerShare
Namespace Prefix: | sqm_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | ifrs-full_ClassesOfShareCapitalAxis=sqm_SeriesAPreferredSharesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfShareCapitalAxis=sqm_SeriesBPreferredSharesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_RangeAxis=ifrs-full_BottomOfRangeMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |