XML 128 R111.htm IDEA: XBRL DOCUMENT
v3.22.1

Financial instruments (Details 15) - USD ($) $ in Thousands | 12 Months Ended |  |
--- | --- | --- | ---
Dec. 31, 2021 | Dec. 31, 2020 | Dec. 30, 2020 | Oct. 31, 2018
Financial instruments [Line Items] |  |  |  |
Tax ID | 77.114.779-8 | N/A |  |
Country |  | Chile |  |
Notional Amount | $ 43,396 | $ 39,031 | $ 51,584 |
Borrowing costs | $ (2,802) | $ (2,250) |  |
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 | 0 | 0 |  |
Maturity date | 01/28/2022 | 01/28/2021 |  |
Currency or adjustment index | US$ | US$ |  |
Payment of interest | Semiannual | Semiannual |  |
Repayment | Upon maturity | Upon maturity |  |
Effective rate | 1.56% | 1.95% |  |
Nominal rate | 4.38% | 4.38% |  |
Notional Amount | $ 4,648 | $ 4,648 |  |
Borrowing costs | $ (433) | $ (433) |  |
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 | 0 | 0 |  |
Maturity date | 04/03/2022 | 04/03/2021 |  |
Currency or adjustment index | US$ | US$ |  |
Payment of interest | Semiannual | Semiannual |  |
Repayment | Upon maturity | Upon maturity |  |
Effective rate | 0.74% | 1.08% |  |
Nominal rate | 3.63% | 3.63% |  |
Notional Amount | $ 2,658 | $ 2,658 |  |
Borrowing costs | $ (614) | $ (614) |  |
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 | 0 | 0 |  |
Maturity date | 05/07/2022 | 05/07/2021 |  |
Currency or adjustment index | US$ | US$ |  |
Payment of interest | Semiannual | Semiannual |  |
Repayment | Upon maturity | Upon maturity |  |
Effective rate | 3.23% | 3.59% |  |
Nominal rate | 4.25% | 4.25% |  |
Notional Amount | $ 2,869 | $ 7,508 |  |
Borrowing costs | $ (679) | $ (679) |  |
Single series bond Four [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 | 0 | 0 |  |
Maturity date | 01/22/2022 | 01/22/2021 |  |
Currency or adjustment index |  | US$ |  |
Payment of interest | Semiannual | Semiannual |  |
Repayment | Upon maturity | Upon maturity |  |
Effective rate | 4.00% | 4.17% |  |
Nominal rate | 4.25% | 4.25% |  |
Notional Amount | $ 7,508 | $ 2,869 |  |
Borrowing costs | $ (237) | $ (237) |  |
Single series bond Five [Member] |  |  |  |
Financial instruments [Line Items] |  |  |  |
Tax ID | 93.007.000-9 |  |  |
Company | SQM S.A. |  |  |
Country | Chile |  |  |
Number of registration or ID of the instrument | 0 |  |  |
Maturity date | 03/10/2022 |  |  |
Currency or adjustment index | US$ |  |  |
Repayment | Upon maturity |  |  |
Effective rate | 3.62% |  |  |
Nominal rate | 3.50% |  |  |
Notional Amount | $ 6,874 |  |  |
Borrowing costs | $ (552) |  |  |
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 | 01/05/2022 | 01/05/2021 |  |
Currency or adjustment index | UF | UF |  |
Payment of interest | Semiannual | Semiannual |  |
Repayment | Semiannual | Semiannual |  |
Effective rate | 1.75% | 0.58% |  |
Nominal rate | 4.90% | 4.90% |  |
Notional Amount | $ 16,026 | $ 18,212 |  |
Borrowing costs | $ (172) | $ (172) |  |
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 | 02/01/2022 | 02/01/2021 |  |
Currency or adjustment index | UF | UF |  |
Payment of interest | Semiannual | Semiannual |  |
Repayment | Upon maturity | Upon maturity |  |
Effective rate | 2.06% | 2.24% |  |
Nominal rate | 3.80% | 3.80% |  |
Notional Amount | $ 863 | $ 962 |  |
Borrowing costs | $ (82) | $ (82) |  |
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 | 01/15/2022 | 01/15/2021 |  |
Currency or adjustment index | UF | UF |  |
Payment of interest | Semiannual | Semiannual |  |
Repayment | Upon maturity | Upon maturity |  |
Effective rate | 2.04% | 2.37% |  |
Nominal rate | 3.25% | 3.25% |  |
Notional Amount | $ 1,636 | $ 1,824 |  |
Borrowing costs | $ (12) | $ (12) |  |
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 | 06/01/2022 | 06/01/2021 |  |
Currency or adjustment index | UF |  |  |
Payment of interest | Semiannual | Semiannual |  |
Repayment | Upon maturity | Upon maturity |  |
Effective rate | 2.72% | 2.92% |  | 3.45%
Nominal rate | 3.45% | 3.45% |  |
Notional Amount | $ 314 | $ 350 |  |
Borrowing costs | (21) | (21) |  |
Non current bonds issued [Member] |  |  |  |
Financial instruments [Line Items] |  |  |  |
Notional Amount | 2,475,239 | 1,833,056 |  |
Non-current maturities | 2,475,239 | 1,833,056 |  |
Borrowing costs | (30,020) | (16,430) |  |
Total | 2,445,219 | 1,816,626 |  |
Non current bonds issued [Member] | Over 1 year to 2 [member] |  |  |  |
Financial instruments [Line Items] |  |  |  |
Notional Amount | 300,000 | 0 |  |
Non-current maturities | 300,000 | 0 |  |
Non current bonds issued [Member] | Over 2 years to 3 [member] |  |  |  |
Financial instruments [Line Items] |  |  |  |
Notional Amount | 0 | 300,000 |  |
Non-current maturities | 0 | 300,000 |  |
Non current bonds issued [Member] | Over 3 years to 4 [member] |  |  |  |
Financial instruments [Line Items] |  |  |  |
Notional Amount | 250,000 | 0 |  |
Non-current maturities | 250,000 | 0 |  |
Non current bonds issued [Member] | Over 4 Years to 5 [Member] |  |  |  |
Financial instruments [Line Items] |  |  |  |
Notional Amount | 0 | 250,000 |  |
Non-current maturities | 0 | 250,000 |  |
Non current bonds issued [Member] | Over 5 Years [Member] |  |  |  |
Financial instruments [Line Items] |  |  |  |
Notional Amount | 1,925,239 | 1,283,056 |  |
Non-current maturities | $ 1,925,239 | $ 1,283,056 |  |
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 | 0 | 0 |  |
Maturity date | 01/28/2025 | 01/28/2025 |  |
Currency or adjustment index | US$ | US$ |  |
Payment of interest | Semiannual | Semiannual |  |
Repayment | Upon maturity | Upon maturity |  |
Effective rate | 4.08% | 4.08% |  |
Nominal rate | 4.38% | 4.38% |  |
Notional Amount | $ 250,000 | $ 250,000 |  |
Non-current maturities | 250,000 | 250,000 |  |
Borrowing costs | (903) | (1,336) |  |
Total | 249,097 | 248,664 |  |
Non current bonds issued [Member] | Single series bond One [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 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 | 250,000 | 0 |  |
Non-current maturities | 250,000 | 0 |  |
Non current bonds issued [Member] | Single series bond One [Member] | Over 4 Years to 5 [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 5 Years [Member] |  |  |  |
Financial instruments [Line Items] |  |  |  |
Notional Amount | 0 | 0 |  |
Non-current maturities | $ 0 | $ 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 | 0 | 0 |  |
Maturity date | 04/03/2023 | 04/03/2023 |  |
Currency or adjustment index | US$ | US$ |  |
Payment of interest | Semiannual | Semiannual |  |
Repayment | Upon maturity | Upon maturity |  |
Effective rate | 3.42% | 3.43% |  |
Nominal rate | 3.63% | 3.63% |  |
Notional Amount | $ 300,000 | $ 300,000 |  |
Non-current maturities | 300,000 | 300,000 |  |
Borrowing costs | (168) | (781) |  |
Total | 299,832 | 299,219 |  |
Non current bonds issued [Member] | Single series bond Two [Member] | Over 1 year to 2 [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 2 years to 3 [member] |  |  |  |
Financial instruments [Line Items] |  |  |  |
Notional Amount | 0 | 300,000 |  |
Non-current maturities | 0 | 300,000 |  |
Non current bonds issued [Member] | Single series bond Two [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 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 | 0 |  |
Non-current maturities | $ 0 | $ 0 |  |
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 | 0 | 0 |  |
Maturity date | 05/07/2029 | 05/07/2029 |  |
Currency or adjustment index | US$ | US$ |  |
Payment of interest | Semiannual | Semiannual |  |
Repayment | Upon maturity | Upon maturity |  |
Effective rate | 4.10% | 4.18% |  |
Nominal rate | 4.25% | 4.25% |  |
Notional Amount | $ 450,000 | $ 450,000 |  |
Non-current maturities | 450,000 | 450,000 |  |
Borrowing costs | (4,343) | (5,020) |  |
Total | 445,657 | 444,980 |  |
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 | 0 |  |
Non-current maturities | 0 | 0 |  |
Non current bonds issued [Member] | Single series bond Three [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 Three [Member] | Over 5 Years [Member] |  |  |  |
Financial instruments [Line Items] |  |  |  |
Notional Amount | 450,000 | 450,000 |  |
Non-current maturities | $ 450,000 | $ 450,000 |  |
Non current bonds issued [Member] | Single series bond Four [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 | 0 | 0 |  |
Maturity date | 01/22/2050 | 01/22/2050 |  |
Currency or adjustment index | US$ | US$ |  |
Payment of interest | Semiannual | Semiannual |  |
Repayment | Upon maturity | Upon maturity |  |
Effective rate | 4.19% | 4.22% |  |
Nominal rate | 4.25% | 4.25% |  |
Notional Amount | $ 400,000 | $ 400,000 |  |
Non-current maturities | 400,000 | 400,000 |  |
Borrowing costs | (6,347) | (6,582) |  |
Total | 393,653 | 393,418 |  |
Non current bonds issued [Member] | Single series bond Four [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 Four [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 Four [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 Four [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 Four [Member] | Over 5 Years [Member] |  |  |  |
Financial instruments [Line Items] |  |  |  |
Notional Amount | 400,000 | 400,000 |  |
Non-current maturities | $ 400,000 | $ 400,000 |  |
Non current bonds issued [Member] | Single series bond Five [Member] |  |  |  |
Financial instruments [Line Items] |  |  |  |
Tax ID | 93.007.000-9 |  |  |
Company | SQM S.A. |  |  |
Country | Chile |  |  |
Number of registration or ID of the instrument | 0 |  |  |
Maturity date | 09/10/2051 |  |  |
Currency or adjustment index | US$ |  |  |
Payment of interest | Semiannual |  |  |
Repayment | Upon maturity |  |  |
Effective rate | 3.43% |  |  |
Nominal rate | 3.50% |  |  |
Notional Amount | $ 700,000 |  |  |
Non-current maturities | 700,000 |  |  |
Borrowing costs | (15,836) |  |  |
Total | 684,164 |  |  |
Non current bonds issued [Member] | Single series bond Five [Member] | Over 1 year to 2 [member] |  |  |  |
Financial instruments [Line Items] |  |  |  |
Notional Amount | 0 |  |  |
Non-current maturities | 0 |  |  |
Non current bonds issued [Member] | Single series bond Five [Member] | Over 2 years to 3 [member] |  |  |  |
Financial instruments [Line Items] |  |  |  |
Notional Amount | 0 |  |  |
Non-current maturities | 0 |  |  |
Non current bonds issued [Member] | Single series bond Five [Member] | Over 3 years to 4 [member] |  |  |  |
Financial instruments [Line Items] |  |  |  |
Notional Amount | 0 |  |  |
Non-current maturities | 0 |  |  |
Non current bonds issued [Member] | Single series bond Five [Member] | Over 4 Years to 5 [Member] |  |  |  |
Financial instruments [Line Items] |  |  |  |
Notional Amount | 0 |  |  |
Non-current maturities | 0 |  |  |
Non current bonds issued [Member] | Single series bond Five [Member] | Over 5 Years [Member] |  |  |  |
Financial instruments [Line Items] |  |  |  |
Notional Amount | 700,000 |  |  |
Non-current maturities | $ 700,000 |  |  |
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 | Semiannual |  |
Effective rate | 4.76% | 4.76% |  |
Nominal rate | 4.90% | 4.90% |  |
Notional Amount | $ 100,064 | $ 126,386 |  |
Non-current maturities | 100,064 | 126,386 |  |
Borrowing costs | (1,206) | (1,378) |  |
Total | 98,858 | 125,008 |  |
Non current bonds issued [Member] | Series H 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 H 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 H 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 H 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 H bonds [Member] | Over 5 Years [Member] |  |  |  |
Financial instruments [Line Items] |  |  |  |
Notional Amount | 100,064 | 126,386 |  |
Non-current maturities | $ 100,064 | $ 126,386 |  |
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 | 3.69% | 3.68% |  |
Nominal rate | 3.80% | 3.80% |  |
Notional Amount | $ 55,035 | $ 61,334 |  |
Non-current maturities | 55,035 | 61,334 |  |
Borrowing costs | (822) | (904) |  |
Total | 54,213 | 60,430 |  |
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 | 55,035 | 61,334 |  |
Non-current maturities | $ 55,035 | $ 61,334 |  |
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% | 3.24% |  |
Nominal rate | 3.25% | 3.25% |  |
Notional Amount | $ 110,070 | $ 122,668 |  |
Non-current maturities | 110,070 | 122,668 |  |
Borrowing costs | (65) | (77) |  |
Total | 110,005 | 122,591 |  |
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 | 110,070 | 122,668 |  |
Non-current maturities | $ 110,070 | $ 122,668 |  |
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 | 3.43% | 3.43% |  |
Nominal rate | 3.45% | 3.45% |  |
Notional Amount | $ 110,070 | $ 122,668 |  |
Non-current maturities | 110,070 | 122,668 |  |
Borrowing costs | (330) | (352) |  |
Total | 109,740 | 122,316 |  |
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 | 110,070 | 122,668 |  |
Non-current maturities | $ 110,070 | $ 122,668 |  |

X
- 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 2021-01-01 -Paragraph 112 -Subparagraph c -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2021-en-r&anchor=para_112_c&doctype=Standard -URIDate 2021-03-24 + Details
Name: | ifrs-full_BorrowingCostsIncurred
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | na
Period Type: | duration

X
- Definition The interest rate on borrowings. [Refer: Borrowings] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IFRS -Number 7 -IssueDate 2021-01-01 -Paragraph 7 -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2021-en-r&anchor=para_7&doctype=Standard -URIDate 2021-03-24 + Details
Name: | ifrs-full_BorrowingsInterestRate
Namespace Prefix: | ifrs-full_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition The maturity of borrowings. [Refer: Borrowings] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IFRS -Number 7 -IssueDate 2021-01-01 -Paragraph 7 -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2021-en-r&anchor=para_7&doctype=Standard -URIDate 2021-03-24 + Details
Name: | ifrs-full_BorrowingsMaturity
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- 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 2021-01-01 -Paragraph 7 -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2021-en-r&anchor=para_7&doctype=Standard -URIDate 2021-03-24 + Details
Name: | ifrs-full_BorrowingsOriginalCurrency
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The country in which the entity is incorporated. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 1 -IssueDate 2021-01-01 -Paragraph 138 -Subparagraph a -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2021-en-r&anchor=para_138_a&doctype=Standard -URIDate 2021-03-24 + Details
Name: | ifrs-full_CountryOfIncorporation
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The name of the reporting entity or other means of identification. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 1 -IssueDate 2021-01-01 -Paragraph 51 -Subparagraph a -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2021-en-r&anchor=para_51_a&doctype=Standard -URIDate 2021-03-24 + Details
Name: | ifrs-full_NameOfReportingEntityOrOtherMeansOfIdentification
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- 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 2021-01-01 -Paragraph 112 -Subparagraph c -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2021-en-r&anchor=para_112_c&doctype=Standard -URIDate 2021-03-24 + Details
Name: | ifrs-full_NoncurrentPortionOfNoncurrentBondsIssued
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- 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 2021-01-01 -Paragraph 112 -Subparagraph c -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2021-en-r&anchor=para_112_c&doctype=Standard -URIDate 2021-03-24 + Details
Name: | ifrs-full_NotionalAmount
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | na
Period Type: | instant

X
- Definition The nominal interest rate on borrowings. + References No definition available. + Details
Name: | sqm_BorrowingsNominalInterestRate
Namespace Prefix: | sqm_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition The description of identification of the instrument. + References No definition available. + Details
Name: | sqm_DescriptionOfIdentificationOfInstrument
Namespace Prefix: | sqm_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The description about repayment of borrowings. + References No definition available. + Details
Name: | sqm_DescriptionOfRepaymentOfBorrowing
Namespace Prefix: | sqm_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Description Of Tax ID + References No definition available. + Details
Name: | sqm_DescriptionOfTaxId
Namespace Prefix: | sqm_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The description of type of payment of interest. + References No definition available. + Details
Name: | sqm_DescriptionOfTypeOfPaymentOfInterest
Namespace Prefix: | sqm_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- References No definition available. + Details
Name: | sqm_FinancialInstrumentsLineItems
Namespace Prefix: | sqm_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The amount of non current bonds issued after deducting issuance costs. + References No definition available. + Details
Name: | sqm_NonCurrentBondsIssuedNetOfIssuanceCosts
Namespace Prefix: | sqm_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Details
Name: | ifrs-full_ClassesOfFinancialInstrumentsAxis=sqm_SingleSeriesBondOneMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfFinancialInstrumentsAxis=sqm_SingleSeriesBondTwoMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfFinancialInstrumentsAxis=sqm_SingleSeriesBondThreeMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfFinancialInstrumentsAxis=sqm_SingleSeriesBondFourMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfFinancialInstrumentsAxis=sqm_SingleSeriesBondFiveMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfFinancialInstrumentsAxis=sqm_SeriesHBondsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfFinancialInstrumentsAxis=sqm_SeriesOBondsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfFinancialInstrumentsAxis=sqm_SeriesPBondsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfFinancialInstrumentsAxis=sqm_SeriesQBondsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfFinancialLiabilitiesAxis=sqm_NonCurrentBondsIssuedMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_MaturityAxis=ifrs-full_LaterThanOneYearAndNotLaterThanTwoYearsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_MaturityAxis=ifrs-full_LaterThanTwoYearsAndNotLaterThanThreeYearsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_MaturityAxis=ifrs-full_LaterThanThreeYearsAndNotLaterThanFourYearsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_MaturityAxis=ifrs-full_LaterThanFourYearsAndNotLaterThanFiveYearsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_MaturityAxis=sqm_LaterThanFiveYearMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |