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v3.20.1

Income tax and deferred taxes (Details Textual) - USD ($) $ in Millions | 1 Months Ended | 12 Months Ended
--- | --- | ---
Nov. 30, 2018 | Dec. 31, 2019 | Dec. 31, 2018 | Dec. 31, 2017
Disclosure of Income tax and deferred taxes [Line Items] |  |  |  |
Applicable tax rate |  | 27.00% | 27.00% | 255.00%
Prescriptive period for review legal deadline |  | 3 |  |
Prescriptive period extended for review legal deadline |  | 6 |  |
Income Tax Penalty Paid | $ 3.8 |  |  |
Additional Income Tax Payable | $ 0.4 |  |  |
Mining Royalties Operation [Member] |  |  |  |
Disclosure of Income tax and deferred taxes [Line Items] |  |  |  |
Applicable tax rate |  | 5.00% |  |
Caliche Extraction Operation [Member] |  |  |  |
Disclosure of Income tax and deferred taxes [Line Items] |  |  |  |
Applicable tax rate |  | 5.24% |  |
United States |  |  |  |
Disclosure of Income tax and deferred taxes [Line Items] |  |  |  |
Prescriptive period for review legal deadline |  | 3 |  |
Prescriptive period extended for review legal deadline |  | 6 |  |
Mexico |  |  |  |
Disclosure of Income tax and deferred taxes [Line Items] |  |  |  |
Applicable tax rate |  | 30.00% | 30.00% |
Prescriptive period for review legal deadline |  | 5 |  |
Spain |  |  |  |
Disclosure of Income tax and deferred taxes [Line Items] |  |  |  |
Prescriptive period for review legal deadline |  | 4 |  |
Belgium |  |  |  |
Disclosure of Income tax and deferred taxes [Line Items] |  |  |  |
Prescriptive period for review legal deadline |  | 3 |  |
Prescriptive period extended for review legal deadline |  | 5 |  |
South Africa |  |  |  |
Disclosure of Income tax and deferred taxes [Line Items] |  |  |  |
Applicable tax rate |  | 28.00% | 28.00% |
Prescriptive period for review legal deadline |  | 3 |  |
Prescriptive period extended for review legal deadline |  | 5 |  |

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- Definition The applicable income tax rate. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 12 -IssueDate 2019-01-01 -Paragraph 81 -Subparagraph c -Clause ii -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=12&code=ifrs-tx-2019-en-r&anchor=para_81_c_ii&doctype=Standard -URIDate 2019-03-27 + Details
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- Definition Represents the amount of additional income tax. + References No definition available. + Details
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- References No definition available. + Details
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- Definition The amount of income tax penalty paid. + References No definition available. + Details
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- Definition The prescriptive period which can be extended for review dating from the expiration of the legal deadline when payment should have been made. + References No definition available. + Details
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- Definition The prescriptive period for review dating from the expiration of the legal deadline when payment should have been made. + References No definition available. + Details
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- Details
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- Details
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- Details
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- Details
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- Details
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