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Financial instruments (Details 15) - USD ($) $ in Thousands | 12 Months Ended |  |
--- | --- | --- | ---
Dec. 31, 2019 | Dec. 31, 2018 | Oct. 31, 2018 | Jan. 15, 2018
Financial instruments [Line Items] |  |  |  |
Tax ID | Total | Foreign |  |
Company |  | SQM S.A. |  |
Effective rate |  |  |  | 3.25%
Notional Amount | $ 148,728 | $ 16,796 |  |
Borrowing costs | $ 0 | $ (1,651) |  |
Single series bond One [Member] |  |  |  |
Financial instruments [Line Items] |  |  |  |
Tax ID | 93.007.000-9 | 93.007.000-9 |  |
Company | SQM S.A. | SQM S.A. |  |
Country | Chile | Chile |  |
Number of registration or ID of the instrument | - | - |  |
Maturity date | 04-21-2020 | 04-21-2019 |  |
Currency or adjustment index | US$ | US$ |  |
Payment of interest | Semiannual | Semiannual |  |
Repayment | Upon maturity | Upon maturity |  |
Effective rate | 0.43% | 0.95% |  |
Nominal rate | 5.50% | 5.50% |  |
Notional Amount | $ 252,674 | $ 2,674 |  |
Borrowing costs | $ (386) | $ (386) |  |
Single series bond Two [Member] |  |  |  |
Financial instruments [Line Items] |  |  |  |
Tax ID | 93.007.000-9 | 93.007.000-9 |  |
Company | SQM S.A. | SQM S.A. |  |
Country | Chile | Chile |  |
Number of registration or ID of the instrument | - | - |  |
Maturity date | 01-28-2020 | 01-28-2019 |  |
Currency or adjustment index | US$ | US$ |  |
Payment of interest | Semiannual | Semiannual |  |
Repayment | Upon maturity | Upon maturity |  |
Effective rate | 2.35% | 2.75% |  |
Nominal rate | 4.38% | 4.38% |  |
Notional Amount | $ 4,648 | $ 4,648 |  |
Borrowing costs | $ (433) | $ (433) |  |
Single series bond Three [Member] |  |  |  |
Financial instruments [Line Items] |  |  |  |
Tax ID | 93.007.000-9 | 93.007.000-9 |  |
Company | SQM S.A. | SQM S.A. |  |
Country | Chile | Chile |  |
Number of registration or ID of the instrument | - | - |  |
Maturity date | 04-03-2020 | 04-03-2019 |  |
Currency or adjustment index | US$ | US$ |  |
Payment of interest | Semiannual | Semiannual |  |
Repayment | Upon maturity | Upon maturity |  |
Effective rate | 1.42% | 1.77% |  |
Nominal rate | 3.63% | 3.63% |  |
Notional Amount | $ 2,658 | $ 2,658 |  |
Borrowing costs | $ (614) | $ (614) |  |
Series H bonds [Member] |  |  |  |
Financial instruments [Line Items] |  |  |  |
Tax ID | 93.007.000-9 | 93.007.000-9 |  |
Company | SQM S.A. | SQM S.A. |  |
Country | Chile | Chile |  |
Number of registration or ID of the instrument | 564 | 564 |  |
Maturity date | 01-05-2020 | 01-05-2019 |  |
Currency or adjustment index | UF | UF |  |
Payment of interest | Semiannual | Semiannual |  |
Repayment | Semiannual | Semiannual |  |
Effective rate | 1.36% | 1.90% |  |
Nominal rate | 4.90% | 4.90% |  |
Notional Amount | $ 17,166 | $ 3,756 |  |
Borrowing costs | $ (139) | $ (139) |  |
Series O bonds [Member] |  |  |  |
Financial instruments [Line Items] |  |  |  |
Tax ID | 93.007.000-9 | 93.007.000-9 |  |
Company | SQM S.A. | SQM S.A. |  |
Country | Chile | Chile |  |
Number of registration or ID of the instrument | 699 | 699 |  |
Maturity date | 02-01-2020 | 02-01-2019 |  |
Currency or adjustment index | UF | UF |  |
Payment of interest | Semiannual | Semiannual |  |
Repayment | Upon maturity | Upon maturity |  |
Effective rate | 2.41% | 2.60% |  |
Nominal rate | 3.80% | 3.80% |  |
Notional Amount | $ 890 | $ 934 |  |
Borrowing costs | $ (67) | $ (67) |  |
Series Q bonds [Member] |  |  |  |
Financial instruments [Line Items] |  |  |  |
Tax ID | 93.007.000-9 | 93.007.000-9 |  |
Company | SQM S.A. | SQM S.A. |  |
Country | Chile | Chile |  |
Number of registration or ID of the instrument | 700 | 700 |  |
Maturity date | 06-01-2020 | 06-01-2019 |  |
Currency or adjustment index | UF | UF |  |
Payment of interest | Semiannual | Semiannual |  |
Repayment | Upon maturity | Upon maturity |  |
Effective rate | 3.11% | 3.34% | 3.45% |
Nominal rate | 3.45% | 3.45% |  |
Notional Amount | $ 323 | $ 342 |  |
Borrowing costs | (6) | 0 |  |
Non current bonds issued [Member] |  |  |  |
Financial instruments [Line Items] |  |  |  |
Notional Amount | 1,414,192 | 1,256,274 |  |
Non-current maturities | 1,414,192 | 1,256,274 |  |
Borrowing costs | (11,084) | (6,795) |  |
Total | 1,403,108 | 1,249,479 |  |
Non current bonds issued [Member] | Over 1 year to 2 [member] |  |  |  |
Financial instruments [Line Items] |  |  |  |
Notional Amount | 13,749 | 264,428 |  |
Non-current maturities | 13,749 | 264,428 |  |
Non current bonds issued [Member] | Over 2 years to 3 [member] |  |  |  |
Financial instruments [Line Items] |  |  |  |
Notional Amount | 13,749 | 14,428 |  |
Non-current maturities | 13,749 | 14,428 |  |
Non current bonds issued [Member] | Over 3 years to 4 [member] |  |  |  |
Financial instruments [Line Items] |  |  |  |
Notional Amount | 313,749 | 314,428 |  |
Non-current maturities | 313,749 | 314,428 |  |
Non current bonds issued [Member] | Over 4 Years to 5 [Member] |  |  |  |
Financial instruments [Line Items] |  |  |  |
Notional Amount | 13,749 | 14,428 |  |
Non-current maturities | 13,749 | 14,428 |  |
Non current bonds issued [Member] | Over 5 Years [Member] |  |  |  |
Financial instruments [Line Items] |  |  |  |
Notional Amount | 1,059,196 | 648,562 |  |
Non-current maturities | $ 1,059,196 | $ 648,562 |  |
Non current bonds issued [Member] | Single series bond One [Member] |  |  |  |
Financial instruments [Line Items] |  |  |  |
Tax ID | 93.007.000-9 | 93.007.000-9 |  |
Company | SQM S.A. | SQM S.A. |  |
Country | Chile | Chile |  |
Number of registration or ID of the instrument | - | - |  |
Maturity date | 01-28-2025 | 04-21-2020 |  |
Currency or adjustment index | US$ | US$ |  |
Payment of interest | Semiannual | Semiannual |  |
Repayment | Upon maturity | Upon maturity |  |
Effective rate | 4.08% | 5.50% |  |
Nominal rate | 4.38% | 5.50% |  |
Notional Amount | $ 250,000 | $ 250,000 |  |
Non-current maturities | 250,000 | 250,000 |  |
Borrowing costs | (1,514) | (131) |  |
Total | 248,486 | 249,869 |  |
Non current bonds issued [Member] | Single series bond One [Member] | Over 1 year to 2 [member] |  |  |  |
Financial instruments [Line Items] |  |  |  |
Notional Amount | 0 | 250,000 |  |
Non-current maturities | 0 | 250,000 |  |
Non current bonds issued [Member] | Single series bond One [Member] | Over 2 years to 3 [member] |  |  |  |
Financial instruments [Line Items] |  |  |  |
Notional Amount | 0 | 0 |  |
Non-current maturities | 0 | 0 |  |
Non current bonds issued [Member] | Single series bond One [Member] | Over 3 years to 4 [member] |  |  |  |
Financial instruments [Line Items] |  |  |  |
Notional Amount | 0 | 0 |  |
Non-current maturities | 0 | 0 |  |
Non current bonds issued [Member] | Single series bond One [Member] | Over 4 Years to 5 [Member] |  |  |  |
Financial instruments [Line Items] |  |  |  |
Notional Amount | 0 | 0 |  |
Non-current maturities | 0 | 0 |  |
Non current bonds issued [Member] | Single series bond One [Member] | Over 5 Years [Member] |  |  |  |
Financial instruments [Line Items] |  |  |  |
Notional Amount | 250,000 | 0 |  |
Non-current maturities | $ 250,000 | $ 0 |  |
Non current bonds issued [Member] | Single series bond Two [Member] |  |  |  |
Financial instruments [Line Items] |  |  |  |
Tax ID | 93.007.000-9 | 93.007.000-9 |  |
Company | SQM S.A. | SQM S.A. |  |
Country | Chile | Chile |  |
Number of registration or ID of the instrument | - | - |  |
Maturity date | 04-03-2023 | 01-28-2025 |  |
Currency or adjustment index | US$ | US$ |  |
Payment of interest | Semiannual | Semiannual |  |
Repayment | Upon maturity | Upon maturity |  |
Effective rate | 3.43% | 4.38% |  |
Nominal rate | 3.63% | 4.38% |  |
Notional Amount | $ 300,000 | $ 250,000 |  |
Non-current maturities | 300,000 | 250,000 |  |
Borrowing costs | (1,393) | (2,202) |  |
Total | 298,607 | 247,798 |  |
Non current bonds issued [Member] | Single series bond Two [Member] | Over 1 year to 2 [member] |  |  |  |
Financial instruments [Line Items] |  |  |  |
Notional Amount | 0 | 0 |  |
Non-current maturities | 0 | 0 |  |
Non current bonds issued [Member] | Single series bond Two [Member] | Over 2 years to 3 [member] |  |  |  |
Financial instruments [Line Items] |  |  |  |
Notional Amount | 0 | 0 |  |
Non-current maturities | 0 | 0 |  |
Non current bonds issued [Member] | Single series bond Two [Member] | Over 3 years to 4 [member] |  |  |  |
Financial instruments [Line Items] |  |  |  |
Notional Amount | 300,000 | 0 |  |
Non-current maturities | 300,000 | 0 |  |
Non current bonds issued [Member] | Single series bond Two [Member] | Over 4 Years to 5 [Member] |  |  |  |
Financial instruments [Line Items] |  |  |  |
Notional Amount | 0 | 0 |  |
Non-current maturities | 0 | 0 |  |
Non current bonds issued [Member] | Single series bond Two [Member] | Over 5 Years [Member] |  |  |  |
Financial instruments [Line Items] |  |  |  |
Notional Amount | 0 | 250,000 |  |
Non-current maturities | $ 0 | $ 250,000 |  |
Non current bonds issued [Member] | Single series bond Three [Member] |  |  |  |
Financial instruments [Line Items] |  |  |  |
Tax ID | 93.007.000-9 | 93.007.000-9 |  |
Company | SQM S.A. | SQM S.A. |  |
Country | Chile | Chile |  |
Number of registration or ID of the instrument | - | - |  |
Maturity date | 05-07-2029 | 04-03-2023 |  |
Currency or adjustment index | US$ | US$ |  |
Payment of interest | Semiannual | Semiannual |  |
Repayment | Upon maturity | Upon maturity |  |
Effective rate | 4.19% | 3.63% |  |
Nominal rate | 4.25% | 3.63% |  |
Notional Amount | $ 450,000 | $ 300,000 |  |
Non-current maturities | 450,000 | 300,000 |  |
Borrowing costs | (5,923) | (2,006) |  |
Total | 444,077 | 297,994 |  |
Non current bonds issued [Member] | Single series bond Three [Member] | Over 1 year to 2 [member] |  |  |  |
Financial instruments [Line Items] |  |  |  |
Notional Amount | 0 | 0 |  |
Non-current maturities | 0 | 0 |  |
Non current bonds issued [Member] | Single series bond Three [Member] | Over 2 years to 3 [member] |  |  |  |
Financial instruments [Line Items] |  |  |  |
Notional Amount | 0 | 0 |  |
Non-current maturities | 0 | 0 |  |
Non current bonds issued [Member] | Single series bond Three [Member] | Over 3 years to 4 [member] |  |  |  |
Financial instruments [Line Items] |  |  |  |
Notional Amount | 0 | 300,000 |  |
Non-current maturities | 0 | 300,000 |  |
Non current bonds issued [Member] | Single series bond Three [Member] | Over 4 Years to 5 [Member] |  |  |  |
Financial instruments [Line Items] |  |  |  |
Notional Amount |  | 0 |  |
Non-current maturities | 0 | 0 |  |
Non current bonds issued [Member] | Single series bond Three [Member] | Over 5 Years [Member] |  |  |  |
Financial instruments [Line Items] |  |  |  |
Notional Amount | 450,000 | 0 |  |
Non-current maturities | $ 450,000 | $ 0 |  |
Non current bonds issued [Member] | Series H bonds [Member] |  |  |  |
Financial instruments [Line Items] |  |  |  |
Tax ID | 93.007.000-9 | 93.007.000-9 |  |
Company | SQM S.A. | SQM S.A. |  |
Country | Chile | Chile |  |
Number of registration or ID of the instrument | 564 | 564 |  |
Maturity date | 01-05-2030 | 01-05-2030 |  |
Currency or adjustment index | UF | UF |  |
Payment of interest | Semiannual | Semiannual |  |
Repayment | Semiannual |  |  |
Effective rate | 4.78% | 4.90% |  |
Nominal rate | 4.90% | 4.90% |  |
Notional Amount | $ 130,617 | $ 158,704 |  |
Non-current maturities | 130,617 | 158,704 |  |
Borrowing costs | (1,253) | (1,392) |  |
Total | 129,364 | 157,312 |  |
Non current bonds issued [Member] | Series H bonds [Member] | Over 1 year to 2 [member] |  |  |  |
Financial instruments [Line Items] |  |  |  |
Notional Amount | 13,749 | 14,428 |  |
Non-current maturities | 13,749 | 14,428 |  |
Non current bonds issued [Member] | Series H bonds [Member] | Over 2 years to 3 [member] |  |  |  |
Financial instruments [Line Items] |  |  |  |
Notional Amount | 13,749 | 14,428 |  |
Non-current maturities | 13,749 | 14,428 |  |
Non current bonds issued [Member] | Series H bonds [Member] | Over 3 years to 4 [member] |  |  |  |
Financial instruments [Line Items] |  |  |  |
Notional Amount | 13,749 | 14,428 |  |
Non-current maturities | 13,749 | 14,428 |  |
Non current bonds issued [Member] | Series H bonds [Member] | Over 4 Years to 5 [Member] |  |  |  |
Financial instruments [Line Items] |  |  |  |
Notional Amount | 13,749 | 14,428 |  |
Non-current maturities | 13,749 | 14,428 |  |
Non current bonds issued [Member] | Series H bonds [Member] | Over 5 Years [Member] |  |  |  |
Financial instruments [Line Items] |  |  |  |
Notional Amount | 75,621 | 100,992 |  |
Non-current maturities | $ 75,621 | $ 100,992 |  |
Non current bonds issued [Member] | Series O bonds [Member] |  |  |  |
Financial instruments [Line Items] |  |  |  |
Tax ID | 93.007.000-9 | 93.007.000-9 |  |
Company | SQM S.A. | SQM S.A. |  |
Country | Chile | Chile |  |
Number of registration or ID of the instrument | 699 | 699 |  |
Maturity date | 02-01-2033 | 02-01-2033 |  |
Currency or adjustment index | UF | UF |  |
Payment of interest | Semiannual | Semiannual |  |
Repayment | Upon maturity | Upon maturity |  |
Effective rate | 3.70% | 3.80% |  |
Nominal rate | 5.50% | 5.50% |  |
Notional Amount | $ 56,715 | $ 59,514 |  |
Non-current maturities | 56,715 | 59,514 |  |
Borrowing costs | (811) | (878) |  |
Total | 55,904 | 58,636 |  |
Non current bonds issued [Member] | Series O bonds [Member] | Over 1 year to 2 [member] |  |  |  |
Financial instruments [Line Items] |  |  |  |
Notional Amount | 0 | 0 |  |
Non-current maturities | 0 | 0 |  |
Non current bonds issued [Member] | Series O bonds [Member] | Over 2 years to 3 [member] |  |  |  |
Financial instruments [Line Items] |  |  |  |
Notional Amount | 0 | 0 |  |
Non-current maturities | 0 | 0 |  |
Non current bonds issued [Member] | Series O bonds [Member] | Over 3 years to 4 [member] |  |  |  |
Financial instruments [Line Items] |  |  |  |
Notional Amount | 0 | 0 |  |
Non-current maturities | 0 | 0 |  |
Non current bonds issued [Member] | Series O bonds [Member] | Over 4 Years to 5 [Member] |  |  |  |
Financial instruments [Line Items] |  |  |  |
Notional Amount | 0 | 0 |  |
Non-current maturities | 0 | 0 |  |
Non current bonds issued [Member] | Series O bonds [Member] | Over 5 Years [Member] |  |  |  |
Financial instruments [Line Items] |  |  |  |
Notional Amount | 56,715 | 59,514 |  |
Non-current maturities | $ 56,715 | $ 59,514 |  |
Non current bonds issued [Member] | Series P Bonds [Member] |  |  |  |
Financial instruments [Line Items] |  |  |  |
Tax ID | 93.007.000-9 | 93.007.000-9 |  |
Company | SQM S.A. | SQM S.A. |  |
Country | Chile | Chile |  |
Number of registration or ID of the instrument | 563 | 563 |  |
Maturity date | 01-15-2028 | 01-15-2028 |  |
Currency or adjustment index | UF | UF |  |
Payment of interest | Semiannual | Semiannual |  |
Repayment | Upon maturity | Upon maturity |  |
Effective rate | 3.24% | 3.25% |  |
Nominal rate | 3.25% | 3.25% |  |
Notional Amount | $ 113,430 | $ 119,028 |  |
Non-current maturities | 113,430 | 119,028 |  |
Borrowing costs | (89) | (101) |  |
Total | 113,341 | 118,927 |  |
Non current bonds issued [Member] | Series P Bonds [Member] | Over 1 year to 2 [member] |  |  |  |
Financial instruments [Line Items] |  |  |  |
Notional Amount | 0 | 0 |  |
Non-current maturities | 0 | 0 |  |
Non current bonds issued [Member] | Series P Bonds [Member] | Over 2 years to 3 [member] |  |  |  |
Financial instruments [Line Items] |  |  |  |
Notional Amount | 0 | 0 |  |
Non-current maturities | 0 | 0 |  |
Non current bonds issued [Member] | Series P Bonds [Member] | Over 3 years to 4 [member] |  |  |  |
Financial instruments [Line Items] |  |  |  |
Notional Amount | 0 | 0 |  |
Non-current maturities | 0 | 0 |  |
Non current bonds issued [Member] | Series P Bonds [Member] | Over 4 Years to 5 [Member] |  |  |  |
Financial instruments [Line Items] |  |  |  |
Notional Amount | 0 | 0 |  |
Non-current maturities | 0 | 0 |  |
Non current bonds issued [Member] | Series P Bonds [Member] | Over 5 Years [Member] |  |  |  |
Financial instruments [Line Items] |  |  |  |
Notional Amount | 113,430 | 119,028 |  |
Non-current maturities | $ 113,430 | $ 119,028 |  |
Non current bonds issued [Member] | Series Q bonds [Member] |  |  |  |
Financial instruments [Line Items] |  |  |  |
Tax ID | 93.007.000-9 | 93.007.000-9 |  |
Company | SQM S.A. | SQM S.A. |  |
Country | Chile | Chile |  |
Number of registration or ID of the instrument | 700 | 700 |  |
Maturity date | 06-01-2038 | 06-01-2038 |  |
Currency or adjustment index | UF | UF |  |
Payment of interest | Semiannual | Semiannual |  |
Repayment | Upon maturity | Upon maturity |  |
Effective rate | 3.45% | 3.45% |  |
Nominal rate | 3.45% | 3.45% |  |
Notional Amount | $ 113,430 | $ 119,028 |  |
Non-current maturities | 113,430 | 119,028 |  |
Borrowing costs | (101) | (85) |  |
Total | 113,329 | 118,943 |  |
Non current bonds issued [Member] | Series Q bonds [Member] | Over 1 year to 2 [member] |  |  |  |
Financial instruments [Line Items] |  |  |  |
Notional Amount | 0 | 0 |  |
Non-current maturities | 0 | 0 |  |
Non current bonds issued [Member] | Series Q bonds [Member] | Over 2 years to 3 [member] |  |  |  |
Financial instruments [Line Items] |  |  |  |
Notional Amount | 0 | 0 |  |
Non-current maturities | 0 | 0 |  |
Non current bonds issued [Member] | Series Q bonds [Member] | Over 3 years to 4 [member] |  |  |  |
Financial instruments [Line Items] |  |  |  |
Notional Amount | 0 | 0 |  |
Non-current maturities | 0 | 0 |  |
Non current bonds issued [Member] | Series Q bonds [Member] | Over 4 Years to 5 [Member] |  |  |  |
Financial instruments [Line Items] |  |  |  |
Notional Amount | 0 | 0 |  |
Non-current maturities | 0 | 0 |  |
Non current bonds issued [Member] | Series Q bonds [Member] | Over 5 Years [Member] |  |  |  |
Financial instruments [Line Items] |  |  |  |
Notional Amount | 113,430 | 119,028 |  |
Non-current maturities | $ 113,430 | $ 119,028 |  |

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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 2019-01-01 -Paragraph 112 -Subparagraph c -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2019-en-r&anchor=para_112_c&doctype=Standard -URIDate 2019-03-27 + 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 2019-01-01 -Paragraph 7 -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2019-en-r&anchor=para_7&doctype=Standard -URIDate 2019-03-27 + Details
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- Definition The country in which the entity is incorporated. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 1 -IssueDate 2019-01-01 -Paragraph 138 -Subparagraph a -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2019-en-r&anchor=para_138_a&doctype=Standard -URIDate 2019-03-27 + Details
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- Definition The non-current portion of non-current bonds issued. [Refer: Bonds issued] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2019-01-01 -Paragraph 112 -Subparagraph c -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2019-en-r&anchor=para_112_c&doctype=Standard -URIDate 2019-03-27 + Details
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- Definition The nominal or face amount of a financial instrument, used to calculate payments made on that instrument. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2019-01-01 -Paragraph 112 -Subparagraph c -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2019-en-r&anchor=para_112_c&doctype=Standard -URIDate 2019-03-27 + Details
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- Definition The nominal interest rate on borrowings. + References No definition available. + Details
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- Definition The description of identification of the instrument. + References No definition available. + Details
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- Definition The description about repayment of borrowings. + References No definition available. + Details
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- Definition Description Of Tax ID + References No definition available. + Details
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- Definition The description of type of payment of interest. + References No definition available. + Details
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- References No definition available. + Details
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- Definition The amount of non current bonds issued after deducting issuance costs. + References No definition available. + Details
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