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COMMITMENTS AND CONTINGENCIES - Narrative (Details) $ in Millions | Mar. 31, 2024 USD ($)
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Purchase Inventory And Other Material |
Commitments And Contingencies [Line Items] |
Remaining 2024 | $ 19.3

X
- Definition Commitments And Contingencies + References No definition available. + Details
Name: | gpor_CommitmentsAndContingenciesLineItems
Namespace Prefix: | gpor_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount of commitment classified as other to be paid in remainder of current fiscal year. + References No definition available. + Details
Name: | us-gaap_OtherCommitmentsFutureMinimumPaymentsRemainderOfFiscalYear
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Details
Name: | us-gaap_OtherCommitmentsAxis=gpor_PurchaseInventoryAndOtherMaterialMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |