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Provisions and other non-financial liabilities (Details Textual) $ in Millions | 12 Months Ended
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Dec. 31, 2020 USD ($)
Bottom of range [member] |
Disclosure of other provisions [line items] |
Research and development expense | $ 10.0
Top of range [member] |
Disclosure of other provisions [line items] |
Research and development expense | $ 15.0
SQM member [Member] |
Disclosure of other provisions [line items] |
Percentage of entity's revenue | 1.70%
SQM member [Member] | Bottom of range [member] |
Disclosure of other provisions [line items] |
Research and development expense | $ 10.8
SQM member [Member] | Top of range [member] |
Disclosure of other provisions [line items] |
Research and development expense | $ 18.9

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- Definition The amount of expenditure directly attributable to research or development activities, recognised in profit or loss. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 38 -IssueDate 2020-01-01 -Paragraph 126 -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=38&code=ifrs-tx-2020-en-r&anchor=para_126&doctype=Standard -URIDate 2020-01-01 + Details
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