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Financial obligations - Additional information (Details) |  |  |  |  |  |  | 1 Months Ended | 12 Months Ended |  |  |  |  |  |
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Apr. 29, 2022 USD ($) installment | Jan. 03, 2022 USD ($) | Nov. 02, 2020 | Oct. 29, 2020 USD ($) | Oct. 29, 2019 USD ($) | Jun. 30, 2014 USD ($) | Jun. 30, 2014 USD ($) | Dec. 31, 2022 USD ($) | Dec. 31, 2021 USD ($) | Dec. 31, 2020 USD ($) | Mar. 02, 2022 USD ($) | Jul. 23, 2021 USD ($) | Dec. 31, 2019 USD ($) | Oct. 29, 2018 USD ($) | Jun. 27, 2016 USD ($) | Feb. 12, 2009 USD ($)
Disclosure of Financial obligations [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Bank loans |  |  |  |  |  |  |  | $ 0 | $ 50,000,000 | $ 65,793,000 |  |  | $ 55,000,000 |  |  |
Equity |  |  |  |  |  |  |  | 3,162,941,000 | 2,538,531,000 | 2,799,857,000 |  |  | $ 2,968,200,000 |  |  |
Amount of prepaid |  |  |  |  |  |  |  | 50,000,000 | 65,793,000 | $ 7,197,000 |  |  |  |  |  |
Empresa de Generacin Huanza S.A |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of Financial obligations [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Borrowings |  |  |  |  |  |  |  | 86,625,000 | 112,784,000 |  |  |  |  |  |  |
Compaa de Minas Buenaventura S.A.A. [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of Financial obligations [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Notional amount |  |  |  |  |  |  |  | 0 | 275,000,000 |  |  | $ 550,000,000 |  |  | $ 275,000,000 |
Borrowings |  |  |  |  |  |  |  | 0 | 281,284,000 |  |  |  |  |  |  |
Banco De Credito Del Peru - New Financial Obligation [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of Financial obligations [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Notional amount |  |  |  |  | $ 161,893,850 |  |  |  |  |  |  |  |  |  |  |
Banco De Credito Del Peru - New Financial Obligation [Member] | Minimum |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of Financial obligations [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt service coverage ratio |  |  |  |  | 1.3 |  |  |  |  |  |  |  |  |  |  |
Banco De Credito Del Peru - New Financial Obligation [Member] | Maximum |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of Financial obligations [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Leverage ratio |  |  |  |  | 1.0 |  |  |  |  |  |  |  |  |  |  |
Indebtedness ratio |  |  |  |  | 2.25 |  |  |  |  |  |  |  |  |  |  |
Banco De Credito Del Peru - New Financial Obligation Maturing on October 2024 [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of Financial obligations [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Notional amount |  |  |  |  | $ 113,325,695 |  |  |  |  |  |  |  |  |  |  |
Borrowings, interest rate |  |  |  |  | 3.76% |  |  |  |  |  |  |  |  |  |  |
Borrowings, maturity |  |  |  |  | October 2024 |  |  |  |  |  |  |  |  |  |  |
Term of debt |  |  |  |  | 5 years |  |  |  |  |  |  |  |  |  |  |
Banco De Credito Del Peru - New Financial Obligation Maturing on October 2026 [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of Financial obligations [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Notional amount |  |  |  |  | $ 48,568,155 |  |  |  |  |  |  |  |  |  |  |
Borrowings, interest rate basis |  |  |  |  | Three-month LIBOR plus 2.39 |  |  |  |  |  |  |  |  |  |  |
Borrowings, adjustment to interest rate basis |  |  |  |  | 2.39% |  |  |  |  |  |  |  |  |  |  |
Borrowings, maturity |  |  |  |  | October 2026 |  |  |  |  |  |  |  |  |  |  |
Spread on variable interest rate |  |  |  |  | 2.39% |  |  |  |  |  |  |  |  |  |  |
Term of debt |  |  |  |  | 7 years |  |  |  |  |  |  |  |  |  |  |
Banco de Credito del Peru and Empresa de Generacion Huanza, Tranche I |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of Financial obligations [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Notional amount | $ 35,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Borrowings, interest rate | 5.05% |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Final installment amount | $ 22,531,250 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Term of debt | 60 months |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Amortization of outstanding principal | $ 9,191,364 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Banco de Credito del Peru and Empresa de Generacion Huanza, Tranche II |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of Financial obligations [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Notional amount | $ 55,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Borrowings, interest rate | 5.05% |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Final installment amount | $ 35,406,250 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Term of debt | 60 months |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Amortization of outstanding principal | $ 13,904,800 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of fixed quarterly installments | installment | 20 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Banco de Credito del Peru [member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of Financial obligations [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Notional amount |  |  |  |  |  | $ 103,373,000 | $ 103,373,000 | $ 0 | $ 61,667,000 |  |  |  |  | $ 119,000,000 |  |
Borrowings, interest rate basis |  |  |  |  |  | LIBOR 30 days plus 2.10 |  |  |  | LIBOR 30 days plus 2.10 |  |  |  |  |  |
Final installment amount |  |  |  | $ 44,191,000 |  | $ 68,905,000 | $ 68,905,000 |  |  | $ 44,191,000 |  |  |  |  |  |
Term of debt |  |  | 18 months |  |  |  |  |  |  |  |  |  |  |  |  |
Banco de Credito del Peru [member] | Minimum |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of Financial obligations [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt service coverage ratio |  |  |  |  |  |  |  |  |  | 1.1 |  |  |  |  |  |
Equity |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 30,000,000
Syndicated Term Loan | January 3, 2022 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of Financial obligations [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Amount of prepaid |  | $ 100,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |
Syndicated Term Loan | March 2, 2022 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of Financial obligations [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Borrowings |  |  |  |  |  |  |  |  |  |  | $ 175,000,000 |  |  |  |  |

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