Name:	gprk_AcquisitionTransactionCost
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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

The total amount of contingent consideration receivable additionally for sale of interest in investments by the entity as of the reporting date.

No definition available.

Name:	gprk_AdditionalContingentConsiderationReceivableInvestments
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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

Adjustment made for working capital in consideration

No definition available.

Name:	gprk_AdjustmentForWorkingCapital
Namespace Prefix:	gprk_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

Amount of cash consideration transferred in asset acquisition.

No definition available.

Name:	gprk_AssetAcquisitionConsiderationTransferredCash
Namespace Prefix:	gprk_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

Amount of consideration transferred in asset acquisition in form of granting security deposit of US.

No definition available.

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

The funds used by the company to acquire, upgrade, and maintain physical assets.

No definition available.

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Data Type:	dtr-types:percentItemType
Balance Type:	na
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The amount of contingent consideration receivable from sale of portion of interest in investments.

No definition available.

Name:	gprk_ContingentConsiderationReceivable
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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

The cumulative gross production of barrels.

No definition available.

Name:	gprk_CumulativeProductionOfBarrels
Namespace Prefix:	gprk_
Data Type:	dtr-types:volumeItemType
Balance Type:	na
Period Type:	instant

The amount of current assets or disposal groups classified as held for sale.

No definition available.

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Namespace Prefix:	gprk_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

Disposal group classified as held-for-sale acquisition date total consideration recognised

No definition available.

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Namespace Prefix:	gprk_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
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Disposal group classified as held-for-sale advance payments received

No definition available.

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Namespace Prefix:	gprk_
Data Type:	xbrli:monetaryItemType
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Period Type:	instant

Disposal group classified as held-for-sale consideration receivable.

No definition available.

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Namespace Prefix:	gprk_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

The number of monthly installments in which outstanding consideration on disposal group classified as held for sale to be received.

No definition available.

Name:	gprk_DisposalGroupClassifiedAsHeldForSaleConsiderationReceivableNumberOfMonthlyInstallments
Namespace Prefix:	gprk_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant

Amount of remaining consideration outstanding or receivable from disposal or divestment of working interest.

No definition available.

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
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Amount of remaining consideration from disposal of non-operated working interest receivable upon completion of customary post-closing formalities.

No definition available.

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

The amount of fixed consideration receivable from sale of portion of interest in investments.

No definition available.

Name:	gprk_FixedConsiderationReceivable
Namespace Prefix:	gprk_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

The amount of foreign exchange gain (loss) from transfer of working interest.

No definition available.

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Namespace Prefix:	gprk_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

Amount of cash consideration transferred in asset acquisition.

No definition available.

Name:	gprk_IfrsAssetAcquisitionConsiderationTransferred
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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

The amount of interest earned on the security deposit

No definition available.

Name:	gprk_InterestOnSecurityDeposit
Namespace Prefix:	gprk_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

The amount of loss incurred from payment to joint operation partner in connection with working interest transfer.

No definition available.

Name:	gprk_LossFromPaymentToJointOperationPartnerWorkingInterestTransfer
Namespace Prefix:	gprk_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

Represents the period of maximum exploratory commitments in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

No definition available.

Name:	gprk_MaximumPeriodOfExploratoryCommitments
Namespace Prefix:	gprk_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

The net amount of loss resulting from transfer of working interest.

No definition available.

Name:	gprk_NetLossFromTransferOfWorking
Namespace Prefix:	gprk_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

Amount of net profit (loss) of an entity contributed from acquired assets.

No definition available.

Name:	gprk_NetProfitLossFromAcquiredAssetsSinceAcquisitionDate
Namespace Prefix:	gprk_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

Percentage of non-operated working interest agreed to transfer.

No definition available.

Name:	gprk_NonOperatedWorkingInterestAgreedToTransferPercentage
Namespace Prefix:	gprk_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

Represents the number of adjacent unconventional blocks acquired.

No definition available.

Name:	gprk_NumberOfAdjacentUnconventionalBlocks
Namespace Prefix:	gprk_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

The amount of cash outflow for adjustments for working capital.

No definition available.

Name:	gprk_PaymentOfAdjustmentsForWorkingCapital
Namespace Prefix:	gprk_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

Represents the percentage of ownership interest to be acquired.

No definition available.

Name:	gprk_PercentageOfOwnershipInterestToBeAcquired
Namespace Prefix:	gprk_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

The percentage of revenue from disposal of group classified as held for sale over the current operating contract.

No definition available.

Name:	gprk_PercentageOfRevenueOfDisposalGroupClassifiedAsHeldForSaleOverCurrentOperatingContract
Namespace Prefix:	gprk_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

Represent the working interest percent agreed to transfer.

No definition available.

Name:	gprk_PercentageOfWorkingInterestAgreedToTransfer
Namespace Prefix:	gprk_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

Represents the percentage of working interest acquired.

No definition available.

Name:	gprk_PercentageOfWorkingInterestsAcquired
Namespace Prefix:	gprk_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

Represents the percentage of working interest held.

No definition available.

Name:	gprk_PercentageOfWorkingInterestsHeld
Namespace Prefix:	gprk_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

Represents the percentage of working interest to be acquired.

No definition available.

Name:	gprk_PercentageOfWorkingInterestsToBeAcquired
Namespace Prefix:	gprk_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

The amount of cash outflow as the prepayments for acquisition of business which is classified as investing activity.

No definition available.

Name:	gprk_PrepaymentsForAcquisitionOfBusiness
Namespace Prefix:	gprk_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

Advance payment for acquisitions of midstream capacity during the reporting period.

No definition available.

Name:	gprk_PrepaymentsForAcquisitionOfMidstreamCapacity
Namespace Prefix:	gprk_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

Amount received as advance associated with selling of non-operated working interest.

No definition available.

Name:	gprk_ProceedsFromAdvance
Namespace Prefix:	gprk_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

The amount of restructuring and other costs.

No definition available.

Name:	gprk_RestructuringAndOtherCosts
Namespace Prefix:	gprk_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

Amount of revenue of an entity contributed from acquired assets.

No definition available.

Name:	gprk_RevenueFromAcquiredAssetsSinceAcquisitionDate
Namespace Prefix:	gprk_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

The amount of security deposits granted to seller.

No definition available.

Name:	gprk_SecurityDeposits
Namespace Prefix:	gprk_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

The amount of total consideration receivable from sale of portion of interest in investments.

No definition available.

Name:	gprk_TotalConsiderationReceivable
Namespace Prefix:	gprk_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

Amount of upfront consideration advance payments related to unconsummated acquisition.

No definition available.

Name:	gprk_UpfrontConsiderationAdvancePaymentRelatedToUnconsummatedAcquisition
Namespace Prefix:	gprk_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

Line items represent concepts included in a table. These concepts are used to disclose reportable information associated with members defined in one or many axes of the table.

No definition available.

Name:	ifrs-full_DisclosureOfBusinessCombinationsLineItems
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

The amount recognised as a reduction of the carrying amount of an asset or cash-generating unit to its recoverable amount. [Refer: Carrying amount [member]]

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
-Number 36
-IssueDate 2025-01-01
-Paragraph 130
-Subparagraph d
-Clause ii
-URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=36&code=ifrs-tx-2025-en-r&anchor=para_130_d_ii&doctype=Standard
-URIDate 2025-03-27

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
-Number 36
-IssueDate 2025-01-01
-Paragraph 130
-Subparagraph b
-URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=36&code=ifrs-tx-2025-en-r&anchor=para_130_b&doctype=Standard
-URIDate 2025-03-27

Name:	ifrs-full_ImpairmentLoss
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

The decrease in deferred tax liability (asset) resulting from the loss of control of a subsidiary. [Refer: Deferred tax liability (asset)]

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Name IAS
-Number 12
-IssueDate 2025-01-01
-Paragraph 81
-URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=12&code=ifrs-tx-2025-en-r&anchor=para_81&doctype=Standard
-URIDate 2025-03-27

Name:	ifrs-full_IncreaseDecreaseThroughLossOfControlOfSubsidiaryDeferredTaxLiabilityAsset
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

The amount of liabilities included in disposal groups classified as held for sale. [Refer: Liabilities; Disposal groups classified as held for sale [member]]

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IFRS
-Number 5
-IssueDate 2025-01-01
-Paragraph 38
-URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=5&code=ifrs-tx-2025-en-r&anchor=para_38&doctype=Standard
-URIDate 2025-03-27

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Note Expiry date 2027-01-01
-Name IAS
-Number 1
-IssueDate 2025-01-01
-Paragraph 54
-Subparagraph p
-URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2025-en-b&anchor=para_54_p&doctype=Standard
-URIDate 2025-03-27

Name:	ifrs-full_LiabilitiesIncludedInDisposalGroupsClassifiedAsHeldForSale
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

The cash inflow from the disposal of non-current assets or disposal groups classified as held for sale and discontinued operations. [Refer: Discontinued operations [member]; Disposal groups classified as held for sale [member]; Non-current assets or disposal groups classified as held for sale]

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Name IAS
-Number 7
-IssueDate 2025-01-01
-Paragraph 16
-URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=7&code=ifrs-tx-2025-en-r&anchor=para_16&doctype=Standard
-URIDate 2025-03-27

Name:	ifrs-full_ProceedsFromDisposalOfNoncurrentAssetsOrDisposalGroupsClassifiedAsHeldForSaleAndDiscontinuedOperations
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

Name:	ifrs-full_JointOperationsAxis=gprk_ManatiFieldBrazilMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Name:	ifrs-full_JointOperationsAxis=gprk_Llanos32BlockColombiaMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Name:	ifrs-full_ContinuingAndDiscontinuedOperationsAxis=gprk_LosParlamentosBlockArgentinaMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Name:	ifrs-full_ContinuingAndDiscontinuedOperationsAxis=gprk_ChileS.p.aAndItSSubsidiariesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Name:	gprk_IfrsAssetAcquisitionAxis=gprk_ProposedAcquisitionOfRepsolExplorationAndProductionAssetsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Name:	srt_OwnershipAxis=gprk_RepsolColombiaOGLimitedMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Name:	dei_LegalEntityAxis=gprk_EcopetrolMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Name:	srt_OwnershipAxis=gprk_SierracolEnergyAraucaLlcMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Name:	gprk_IfrsAssetAcquisitionAxis=gprk_ArgentinaSVacaMuertaFormationMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Name:	gprk_IfrsStatementScenarioAxis=gprk_ScenarioAcquisitionOnJanuary12025Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Name:	ifrs-full_CounterpartiesAxis=gprk_GasYPetrleoDelNeuqunS.aMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Name:	srt_OwnershipAxis=gprk_PuestoSilvaOesteBlocksNeuguenProvinceMember
Namespace Prefix:
Data Type:	na
Balance Type:
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Name:	gprk_IfrsAssetAcquisitionAxis=gprk_UnconsummatedAcquisitionFourAdjacentUnconventionalBlocksInNeuquenBasinArgentinaMember
Namespace Prefix:
Data Type:	na
Balance Type:
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Name:	ifrs-full_ClassesOfPropertyPlantAndEquipmentAxis=gprk_PericoBlockEcuadorMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Name:	gprk_IfrsStatementScenarioAxis=gprk_ScenarioAchievingCumulativeGrossProductionOf2MillionBarrelsMember
Namespace Prefix:
Data Type:	na
Balance Type:
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Name:	ifrs-full_ClassesOfPropertyPlantAndEquipmentAxis=gprk_EspejoAndPericoBlocksMember
Namespace Prefix:
Data Type:	na
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