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Commitments and contingencies - Open tax procedures (Details) |  | 12 Months Ended |
--- | --- | --- | ---
Nov. 13, 2020 PEN (S/) | Nov. 13, 2020 USD ($) | Dec. 31, 2022 USD ($) | Dec. 31, 2020 PEN (S/) | Dec. 31, 2020 USD ($)
Disclosure of Commitments and contingencies [Line Items] |  |  |  |  |
Compulsory collection of income tax |  |  | $ 797,310,000 |  |
Tax Assessments, penalties and interest expenses |  |  | 476,386,000 |  |
Tax Assessments Estimated Possible Losses |  |  | $ 320,924,000 |  |
SUNAT. | Year 2007 and 2008 |  |  |  |  |
Disclosure of Commitments and contingencies [Line Items] |  |  |  |  |
Compulsory collection of income tax | S/ 1,567,297,000 | $ 410,287,000 |  |  |
Tax Assessments, penalties and interest expenses | 1,375,248,000 | 360,013,000 |  |  |
Collection of debt forced amount |  |  |  | S/ 72,065,000 | $ 18,925,000
Tax Assessments Estimated Possible Losses | S/ 192,049,000 | $ 50,275,000 |  |  |

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