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Income Taxes - Additional Information (Detail) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018
Disclosure of temporary difference, unused tax losses and unused tax credits [line items] |  |  |
Tax rate | 25.00% | 25.00% | 25.00%
Deferred tax assets | $ 35,595 | $ 19,215 |
Temporary differences associated with investments in subsidiaries, for which deferred tax liabilities have not been recognized |  | 272,500 |
Copa Airlines [member] |  |  |
Disclosure of temporary difference, unused tax losses and unused tax credits [line items] |  |  |
Deferred tax assets | $ 11,800 |  |
Duaration of tax loss carryforward | 3 years |  |
Tax Losses Carry Forward Start Year | 2023 years |  |
Colombia [member] | Tax year 2021 [member] |  |  |
Disclosure of temporary difference, unused tax losses and unused tax credits [line items] |  |  |
Tax rate |  |  | 31.00%
Colombia [member] | Tax year 2021 [member] | Copa Airlines [member] |  |  |
Disclosure of temporary difference, unused tax losses and unused tax credits [line items] |  |  |
Effective rate |  |  | (25.00%)
Colombia [member] | Tax year 2021 [member] | Copa Colombia [member] |  |  |
Disclosure of temporary difference, unused tax losses and unused tax credits [line items] |  |  |
Effective rate |  |  | (31.00%)
Colombia [member] | Tax year 2021 [member] | Oval [member] |  |  |
Disclosure of temporary difference, unused tax losses and unused tax credits [line items] |  |  |
Effective rate |  |  | (21.00%)
Colombia [member] | Tax year 2022 [member] |  |  |
Disclosure of temporary difference, unused tax losses and unused tax credits [line items] |  |  |
Tax rate |  |  | 30.00%
Carried forward tax losses of Copa Colombia [member] |  |  |
Disclosure of temporary difference, unused tax losses and unused tax credits [line items] |  |  |
Deferred tax assets | $ 9,100 | $ 1,700 |
Duaration of tax loss carryforward | 7 years |  |
Tax Losses Carry Forward Start Year | 2022 years |  |

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