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Other Assets (Schedule Of Other Assets) (Details) (USD $)
In Thousands, unless otherwise specified |
Dec. 31, 2014
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Dec. 31, 2013
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|---|---|---|
| Other Assets, Noncurrent Disclosure [Abstract] | ||
| Plugging and abandonment escrow account on the WCBB properties (Note 16) | $ 3,097gpor_PluggingAndAbandonmentEscrowAccount | $ 3,105gpor_PluggingAndAbandonmentEscrowAccount |
| Certificates of Deposit securing letter of credit | 275gpor_CertificatesOfDepositSecuringLetterOfCredit | 275gpor_CertificatesOfDepositSecuringLetterOfCredit |
| Prepaid drilling costs | 483gpor_PrepaidDrillingCosts | 526gpor_PrepaidDrillingCosts |
| Loan commitment fees | 15,390us-gaap_UnamortizedLoanCommitmentAndOriginationFeesAndUnamortizedDiscountsOrPremiums | 9,341us-gaap_UnamortizedLoanCommitmentAndOriginationFeesAndUnamortizedDiscountsOrPremiums |
| Derivative receivable | 0gpor_DerivativeReceivable | 4,493gpor_DerivativeReceivable |
| Deposits | 34us-gaap_DepositAssets | 34us-gaap_DepositAssets |
| Other | 117gpor_OtherAssetsOther | 77gpor_OtherAssetsOther |
| Other assets | $ 19,396us-gaap_OtherAssetsNoncurrent | $ 17,851us-gaap_OtherAssetsNoncurrent |
| X | ||||||||||
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- Definition
Certificates of deposit securing letter of credit. No definition available.
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- Definition
Derivative Receivable No definition available.
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| X | ||||||||||
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- Definition
Other Assets, Other No definition available.
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| X | ||||||||||
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- Definition
Plugging And Abandonment Escrow Account No definition available.
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- Definition
Prepaid Drilling Costs No definition available.
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| X | ||||||||||
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- Definition
The carrying amount of the asset transferred to a third party to serve as a deposit, which typically serves as security against failure by the transferor to perform under terms of an agreement. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Aggregate carrying amount, as of the balance sheet date, of noncurrent assets not separately disclosed in the balance sheet. Noncurrent assets are expected to be realized or consumed after one year (or the normal operating cycle, if longer). Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Details
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| X | ||||||||||
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- Definition
Amount of deferred fees paid by borrowers and unamortized costs incurred to originate loans and leases, unamortized loan commitments and loan syndication fees, and premiums over or discounts from face amounts of loans that are being amortized into income as an adjustment to yield. Excludes amounts for loans and leases covered under loss sharing agreements. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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