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v3.22.1

Trade and other payables (Narrative) (Details) | 12 Months Ended
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Dec. 31, 2021 | Dec. 31, 2020
Disclosure Of Trade and other payables [Abstract] |  |
Average credit period Expressed As Creditor Days | 89 days | 110 days

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- Definition Represents the average credit period that expressed as creditor days. + References No definition available. + Details
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Namespace Prefix: | gprk_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

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- References No definition available. + Details
Name: | gprk_DisclosureOfTradeAndOtherPayablesAbstract
Namespace Prefix: | gprk_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration