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Significant Accounting Judgments, Estimates and Assumptions - Additional Information (Detail) - Aircraft | Dec. 31, 2020 | Dec. 31, 2019
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Disclosure of voluntary change in accounting policy [line items] |  |
Salvage value assets rate | 15.00% |
Air crafts held for sale |  | 14
Boeing 737-700 [member] |  |
Disclosure of voluntary change in accounting policy [line items] |  |
Air crafts held for sale | 14 |

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- Definition Number of air crafts held for sale. + References No definition available. + Details
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Namespace Prefix: | cpa_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

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- Definition Salvage value assets rate. + References No definition available. + Details
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Namespace Prefix: | cpa_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

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- Definition Line items represent concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes of the table. + References No definition available. + Details
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Namespace Prefix: | ifrs-full_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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- Details
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Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |