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Financial Instruments-risk management (Narrative) (Details) |  |  | 1 Months Ended | 12 Months Ended |  |  |  |
--- | --- | --- | --- | --- | --- | --- | --- | ---
Oct. 08, 2021 USD ($) | Oct. 07, 2021 USD ($) | Apr. 30, 2021 USD ($) | Jan. 31, 2020 USD ($) | Dec. 31, 2021 USD ($) item customer | Dec. 31, 2020 USD ($) | Dec. 31, 2019 USD ($) | Jul. 31, 2021 USD ($) | Jul. 31, 2021 COP ($) | May 31, 2021 USD ($) | May 31, 2021 COP ($) | Jun. 30, 2020 USD ($) | Dec. 31, 2019 GBP (£)
Disclosure Of Financial Instruments Risk management [Line items] |  |  |  |  |  |  |  |  |  |  |  |  |
Foreign exchange gain (loss) |  |  |  |  | $ 5,049,000 | $ (13,008,000) | $ (2,446,000) |  |  |  |  |  |
Percentage Of Debt Maturing In Five Years Or Less |  |  |  |  | 97.00% |  |  |  |  |  |  |  |
Repayments of borrowings, classified as financing activities |  |  |  |  | $ 274,934,000 | 3,575,000 | $ 9,790,000 |  |  |  |  |  |
Notional amount |  |  |  |  |  |  |  |  |  | $ 9,388,000 | $ 35,000,000,000 |  |
Borrowings, interest rate |  |  |  |  |  |  |  |  |  | 1.60% | 1.60% |  |
Borrowings |  |  |  |  | $ 674,092,000 | $ 784,586,000 |  |  |  |  |  |  |
Gearing Ratio |  |  |  |  | 112.00% | 123.00% |  |  |  |  |  |  |
Banco Santander [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure Of Financial Instruments Risk management [Line items] |  |  |  |  |  |  |  |  |  |  |  |  |
Borrowings |  |  |  |  | $ 2,319,000 | $ 3,736,000 |  |  |  |  |  |  |
2024 Notes [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure Of Financial Instruments Risk management [Line items] |  |  |  |  |  |  |  |  |  |  |  |  |
Repayments of borrowings, classified as financing activities |  |  | $ 255,000,000 |  |  |  |  |  |  |  |  |  |
2027 Notes [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure Of Financial Instruments Risk management [Line items] |  |  |  |  |  |  |  |  |  |  |  |  |
Notional amount |  |  | $ 150,000,000 |  |  |  |  |  |  |  |  |  |
Percentage of price of borrowings |  |  | 101.875% |  |  |  |  |  |  |  |  |  |
Yield |  |  | 5.117% |  |  |  |  |  |  |  |  |  |
2027 Notes [Member] | Issuance of Notes [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure Of Financial Instruments Risk management [Line items] |  |  |  |  |  |  |  |  |  |  |  |  |
Notional amount |  |  |  | $ 350,000,000 |  |  |  |  |  |  |  |  |
Borrowings, interest rate |  |  |  | 5.50% |  |  |  |  |  |  |  |  |
Percentage of price of borrowings |  |  |  | 99.285% |  |  |  |  |  |  |  |  |
Yield |  |  |  | 5.625% |  |  |  |  |  |  |  |  |
Amerisur Resources Limited [Member] | Cash flow hedges [member] |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure Of Financial Instruments Risk management [Line items] |  |  |  |  |  |  |  |  |  |  |  |  |
Notional amount | £ |  |  |  |  |  |  |  |  |  |  |  |  | £ 241,682,496
Colombian subsidiary [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure Of Financial Instruments Risk management [Line items] |  |  |  |  |  |  |  |  |  |  |  |  |
Notional amount |  | $ 20,000,000 |  |  |  |  |  | $ 9,973,000 |  |  |  |  |
Borrowings, interest rate |  | 4.50% |  |  |  |  |  | 5.38% | 5.38% |  |  |  |
Commitment fee percent |  | 1.95% |  |  |  |  |  |  |  |  |  |  |
Colombian subsidiary [Member] | Colombian Peso [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure Of Financial Instruments Risk management [Line items] |  |  |  |  |  |  |  |  |  |  |  |  |
Notional amount |  |  |  |  |  |  |  |  | $ 37,653,000,000 |  |  |  |
Local Customers [Member] | Neuquen Basin [Member] | Argentina [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure Of Financial Instruments Risk management [Line items] |  |  |  |  |  |  |  |  |  |  |  |  |
Percentage of entity's revenue |  |  |  |  | 3.00% |  |  |  |  |  |  |  |
Percentage Of Entity's Production Sold To Customer Type |  |  |  |  | 72.00% |  |  |  |  |  |  |  |
Export Traders [Member] | Argentina [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure Of Financial Instruments Risk management [Line items] |  |  |  |  |  |  |  |  |  |  |  |  |
Percentage Of Entity's Production Sold To Customer Type |  |  |  |  | 9.00% |  |  |  |  |  |  |  |
Major Refineries [Member] | Neuquen Basin [Member] | Argentina [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure Of Financial Instruments Risk management [Line items] |  |  |  |  |  |  |  |  |  |  |  |  |
Percentage of entity's revenue |  |  |  |  | 1.00% |  |  |  |  |  |  |  |
Percentage Of Entity's Production Sold To Customer Type |  |  |  |  | 19.00% |  |  |  |  |  |  |  |
Local Customers and Petrobras Brazil [Member] | Maximum | Brazil [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure Of Financial Instruments Risk management [Line items] |  |  |  |  |  |  |  |  |  |  |  |  |
Percentage of entity's revenue |  |  |  |  |  | 1.00% | 1.00% |  |  |  |  |  |
Shell Western Supply And Trading Limited [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure Of Financial Instruments Risk management [Line items] |  |  |  |  |  |  |  |  |  |  |  |  |
Prepaid future oil sales | $ 15,000,000 |  |  |  |  |  |  |  |  |  |  |  |
Period of access to future oil sales | 12 months |  |  |  |  |  |  |  |  |  |  |  |
Fixed interest rate [member] | 2024 Notes [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure Of Financial Instruments Risk management [Line items] |  |  |  |  |  |  |  |  |  |  |  |  |
Borrowings, interest rate |  |  |  |  | 6.50% |  |  |  |  |  |  |  |
Fixed interest rate [member] | 2027 Notes [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure Of Financial Instruments Risk management [Line items] |  |  |  |  |  |  |  |  |  |  |  |  |
Borrowings, interest rate |  |  |  |  | 5.50% |  |  |  |  |  |  |  |
Ifrs Scenario Plan [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure Of Financial Instruments Risk management [Line items] |  |  |  |  |  |  |  |  |  |  |  |  |
Price Decrease Additional Percentage Against Actual Price |  |  |  |  | 10.00% | 10.00% | 10.00% |  |  |  |  |  |
Price fluctuation gain (loss) |  |  |  |  | $ 17,899,000 | $ 21,014,000 | $ 38,340,000 |  |  |  |  |  |
Currency risk [member] | Argentine Peso [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure Of Financial Instruments Risk management [Line items] |  |  |  |  |  |  |  |  |  |  |  |  |
Currency Devaluation Percentage Against Dollar |  |  |  |  | 22.00% | 41.00% | 59.00% |  |  |  |  |  |
Currency risk [member] | Chilean Peso [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure Of Financial Instruments Risk management [Line items] |  |  |  |  |  |  |  |  |  |  |  |  |
Currency Devaluation Percentage Against Dollar |  |  |  |  | 19.00% |  | 8.00% |  |  |  |  |  |
Currency Revaluation Percentage Against Dollar |  |  |  |  |  | 5.00% |  |  |  |  |  |  |
Currency risk [member] | Colombian Peso [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure Of Financial Instruments Risk management [Line items] |  |  |  |  |  |  |  |  |  |  |  |  |
Currency Devaluation Percentage Against Dollar |  |  |  |  | 16.00% | 5.00% | 1.00% |  |  |  |  |  |
Currency risk [member] | Brazilian Real [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure Of Financial Instruments Risk management [Line items] |  |  |  |  |  |  |  |  |  |  |  |  |
Currency Devaluation Percentage Against Dollar |  |  |  |  | 7.00% | 29.00% | 17.00% |  |  |  |  |  |
Foreign exchange gain (loss) |  |  |  |  | $ (498,000) | $ (4,205,000) | $ (664,000) |  |  |  |  |  |
Currency risk [member] | Ifrs Scenario Plan [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure Of Financial Instruments Risk management [Line items] |  |  |  |  |  |  |  |  |  |  |  |  |
Currency Devaluation Additional Percentage Against Dollar |  |  |  |  | 10.00% | 10.00% | 10.00% |  |  |  |  |  |
Foreign exchange gain (loss) |  |  |  |  | $ 9,070,000 | $ 9,057,000 | $ 645,000 |  |  |  |  |  |
Currency risk [member] | Ifrs Scenario Plan [Member] | Brazilian Real [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure Of Financial Instruments Risk management [Line items] |  |  |  |  |  |  |  |  |  |  |  |  |
Currency Devaluation Additional Percentage Against Dollar |  |  |  |  | 10.00% | 10.00% | 10.00% |  |  |  |  |  |
Foreign exchange gain (loss) |  |  |  |  | $ 780,000 | $ 909,000 | $ 927,000 |  |  |  |  |  |
Liquidity risk [member] |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure Of Financial Instruments Risk management [Line items] |  |  |  |  |  |  |  |  |  |  |  |  |
Cash |  |  |  |  | $ 100,604,000 |  |  |  |  |  |  |  |
Percentage Of Debt Maturing In Five Years Or Less |  |  |  |  | 97.00% |  |  |  |  |  |  |  |
Barrels of oil equivalent per day in production at year end | item |  |  |  |  | 39,300 |  |  |  |  |  |  |  |
Liquidity risk [member] | Trafigura [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure Of Financial Instruments Risk management [Line items] |  |  |  |  |  |  |  |  |  |  |  |  |
Available credit line |  |  |  |  |  |  |  |  |  |  |  | $ 75,000,000 |
Interest Rate Risk [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure Of Financial Instruments Risk management [Line items] |  |  |  |  |  |  |  |  |  |  |  |  |
Borrowings |  |  |  |  | $ 2,319,000 |  |  |  |  |  |  |  |
Percentage of borrowings bearing variable interest rate |  |  |  |  | 0.30% |  |  |  |  |  |  |  |
Interest Rate Risk [Member] | Fixed interest rate [member] | 2024 Notes [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure Of Financial Instruments Risk management [Line items] |  |  |  |  |  |  |  |  |  |  |  |  |
Borrowings |  |  |  |  | $ 170,000,000 |  |  |  |  |  |  |  |
Interest Rate Risk [Member] | Fixed interest rate [member] | 2027 Notes [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure Of Financial Instruments Risk management [Line items] |  |  |  |  |  |  |  |  |  |  |  |  |
Borrowings |  |  |  |  | $ 500,000,000 |  |  |  |  |  |  |  |
Credit Risk [Member] | Minimum |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure Of Financial Instruments Risk management [Line items] |  |  |  |  |  |  |  |  |  |  |  |  |
Gearing Ratio |  |  |  |  | 60.00% | 60.00% | 60.00% |  |  |  |  |  |
Credit Risk [Member] | Maximum |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure Of Financial Instruments Risk management [Line items] |  |  |  |  |  |  |  |  |  |  |  |  |
Gearing Ratio |  |  |  |  | 80.00% | 80.00% | 80.00% |  |  |  |  |  |
Credit Risk [Member] | ENAP [Member] | Chile [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure Of Financial Instruments Risk management [Line items] |  |  |  |  |  |  |  |  |  |  |  |  |
Percentage of entity's revenue |  |  |  |  | 1.00% | 1.00% | 2.00% |  |  |  |  |  |
Credit Risk [Member] | Methanex Chile SpA [Member] | Chile [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure Of Financial Instruments Risk management [Line items] |  |  |  |  |  |  |  |  |  |  |  |  |
Percentage of entity's revenue |  |  |  |  | 2.00% | 4.00% | 3.00% |  |  |  |  |  |
Credit Risk [Member] | Petrobras Brazil [Member] | Brazil [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure Of Financial Instruments Risk management [Line items] |  |  |  |  |  |  |  |  |  |  |  |  |
Percentage of entity's revenue |  |  |  |  | 3.00% | 3.00% | 4.00% |  |  |  |  |  |
Credit Risk [Member] | Grupo Albanesi [Member] | Argentina [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure Of Financial Instruments Risk management [Line items] |  |  |  |  |  |  |  |  |  |  |  |  |
Percentage of entity's revenue |  |  |  |  | 1.00% |  |  |  |  |  |  |  |
Credit Risk [Member] | Three Clients [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure Of Financial Instruments Risk management [Line items] |  |  |  |  |  |  |  |  |  |  |  |  |
Percentage of entity's revenue |  |  |  |  | 89.00% | 83.00% |  |  |  |  |  |  |
Credit Risk [Member] | Three Clients [Member] | Colombian subsidiary [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure Of Financial Instruments Risk management [Line items] |  |  |  |  |  |  |  |  |  |  |  |  |
Concentration risk, number of customers | customer |  |  |  |  | 3 |  |  |  |  |  |  |  |
Percentage of entity's revenue |  |  |  |  | 99.00% | 98.00% |  |  |  |  |  |  |

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