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Financial instruments (Details 12) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2020 | Dec. 31, 2019
Financial instruments [Line Items] |  |
Company | SQM S.A. |
Notional amounts | $ 39,031 | $ 282,914
Borrowing costs | (2,250) | (2,336)
Bank borrowings [Member] |  |
Financial instruments [Line Items] |  |
Notional amounts | 0 | 0
Current amounts | 82 | 199
Borrowing costs | 0 | 0
Total | 82 | 199
Bank borrowings [Member] | Not later than three months [member] |  |
Financial instruments [Line Items] |  |
Notional amounts | 0 | 0
Current amounts | 0 | 12
Bank borrowings [Member] | Later than three months and not later than one year [member] |  |
Financial instruments [Line Items] |  |
Notional amounts | 0 | 0
Current amounts | $ 82 | $ 187
Bank borrowing One [Member] |  |
Financial instruments [Line Items] |  |
Tax ID No. | 93.007.000-9 | 93.007.000-9
Company | SQM S.A. |
Country | Chile |
Tax ID No. | O-E |
Financial institution | Scotiabank Cayman | Scotiabank Cayman
Country | USA |
Currency or adjustment index | USD |
Payment of interest | Upon maturity |
Repayment | 05/30/2023 |
Effective rate | 1.00% |
Nominal rate | 1.36% |
Bank borrowing Three [Member] |  |
Financial instruments [Line Items] |  |
Company | SQM S.A. | SQM S.A.
Country |  | Chile
Tax ID No. |  | Foreign
Financial institution | Scotiabank Cayman | Scotiabank Cayman
Country |  | USA
Currency or adjustment index |  | US$
Repayment |  | Upon maturity
Borrowings Expiration Date |  | May 29, 2023
Effective rate |  | 2.11%
Nominal rate |  | 3.01%
Notional amounts | $ 0 | $ 0
Current amounts | 82 | 187
Borrowing costs | 0 | 0
Total | 82 | 187
Bank borrowing Three [Member] | Not later than three months [member] |  |
Financial instruments [Line Items] |  |
Notional amounts | 0 | 0
Current amounts | 0 | 0
Bank borrowing Three [Member] | Later than three months and not later than one year [member] |  |
Financial instruments [Line Items] |  |
Notional amounts | 0 | 0
Current amounts | $ 82 | $ 187
Foreign Bank Borrowings One [Member] |  |
Financial instruments [Line Items] |  |
Tax ID No. |  | Foreign
Company |  | Nitratos Naturais do Chile
Country |  | Brazil
Tax ID No. |  | Foreign
Financial institution |  | Banco ITAU Brasil
Country |  | Brazil
Currency or adjustment index |  | BRL
Repayment |  | Upon maturity
Borrowings Expiration Date |  | Dec. 31, 2019
Effective rate |  | 13.57%
Nominal rate |  | 4.25%
Notional amounts |  | $ 0
Current amounts |  | 12
Borrowing costs |  | 0
Total |  | 12
Foreign Bank Borrowings One [Member] | Not later than three months [member] |  |
Financial instruments [Line Items] |  |
Notional amounts |  | 0
Current amounts |  | 12
Foreign Bank Borrowings One [Member] | Later than three months and not later than one year [member] |  |
Financial instruments [Line Items] |  |
Notional amounts |  | 0
Current amounts |  | $ 0

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- Definition The amount of interest and other costs that an entity incurs in connection with the borrowing of funds. + 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
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- References No definition available. + Details
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- Definition The amount of short term borrowings after deducting borrowing costs. + References No definition available. + Details
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