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Financial instruments (Details 14) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2020 | Dec. 31, 2019
Financial instruments [Line Items] |  |
Company | SQM S.A. |
Notional amount | $ 39,031 | $ 282,914
Borrowing costs | $ (2,250) | $ (2,336)
Bank Borrowings Chilean Tax [Member] |  |
Financial instruments [Line Items] |  |
Tax ID No. | 93.007.000-9 | 93.007.000-9
Company | SQM S.A. | SQM S.A.
Country | Chile | Chile
Tax ID No. | Foreign | Foreign
Financial institution | Scotiabank Cayman | Scotiabank Cayman
Country | USA | USA
Currency or adjustment index | USD | USD
Effective rate | 1.98% | 2.84%
Nominal rate | 1.36% | 3.01%
Non current bonds issued [Member] |  |
Financial instruments [Line Items] |  |
Notional amount | $ 70,000 | $ 70,000
Non-current maturities | 70,000 | 70,000
Borrowing costs | (624) | (862)
Total | $ 69,376 | $ 69,138
Non current bonds issued [Member] | Bank Borrowings Chilean Tax [Member] |  |
Financial instruments [Line Items] |  |
Company | SQM S.A. | SQM S.A.
Financial institution | Scotiabank Cayman | Scotiabank Cayman
Notional amount | $ 70,000 | $ 70,000
Non-current maturities | 70,000 | 70,000
Borrowing costs | (624) | (862)
Total | 69,376 | 69,138
Non current bonds issued [Member] | Between 1 year to 2 [member] |  |
Financial instruments [Line Items] |  |
Notional amount | 0 | 0
Non-current maturities | 0 | 0
Non current bonds issued [Member] | Between 1 year to 2 [member] | Bank Borrowings Chilean Tax [Member] |  |
Financial instruments [Line Items] |  |
Notional amount | 0 | 0
Non-current maturities | 0 | 0
Non current bonds issued [Member] | Between 2 years to 3 [member] |  |
Financial instruments [Line Items] |  |
Notional amount | 70,000 | 0
Non-current maturities | 70,000 | 0
Non current bonds issued [Member] | Between 2 years to 3 [member] | Bank Borrowings Chilean Tax [Member] |  |
Financial instruments [Line Items] |  |
Notional amount | 70,000 | 0
Non-current maturities | 70,000 | 0
Non current bonds issued [Member] | Between 3 Years to 4 [member] |  |
Financial instruments [Line Items] |  |
Notional amount | 0 | 70,000
Non-current maturities | 0 | 70,000
Non current bonds issued [Member] | Between 3 Years to 4 [member] | Bank Borrowings Chilean Tax [Member] |  |
Financial instruments [Line Items] |  |
Notional amount | 0 | 70,000
Non-current maturities | $ 0 | $ 70,000

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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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- Definition The currency in which the borrowings are denominated. [Refer: Borrowings] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IFRS -Number 7 -IssueDate 2020-01-01 -Paragraph 7 -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2020-en-r&anchor=para_7&doctype=Standard -URIDate 2020-01-01 + Details
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- Definition The nominal interest rate on borrowings. + References No definition available. + Details
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- Definition The country in which creditor institution is incorporated. + References No definition available. + Details
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