2.4.0.84070 - Disclosure - GAS PROCESSING AGREEMENTS (Details)truefalsefalse1false USDfalsefalse$D2013Q2YTDhttp://www.sec.gov/CIK0001086319duration2013-01-01T00:00:002013-06-30T00:00:00Thousands_Cubic_FeetStandardhttp://www.xbrl.org/2009/utrMcfutr0USDStandardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$2false truefalseD2011Q3_M0921_ChipetaProcessingAgreementMemberhttp://www.sec.gov/CIK0001086319duration2011-09-20T00:00:002011-09-21T00:00:00falsefalseChipeta Processing Agreementgsxn_GasProcessingAgreementByNameAxisxbrldihttp://xbrl.org/2006/xbrldigsxn_ChipetaProcessingAgreementMembergsxn_GasProcessingAgreementByNameAxisexplicitMemberMcfPerDayDividehttp://www.xbrl.org/2009/utrMcfutrhttp://www.xbrl.org/2009/utrDutr03false truefalseD2011Q3_M0921_ChipetaProcessingAgreementMember_MinimumMemberhttp://www.sec.gov/CIK0001086319duration2011-09-20T00:00:002011-09-21T00:00:00falsefalseChipeta Processing Agreementgsxn_GasProcessingAgreementByNameAxisxbrldihttp://xbrl.org/2006/xbrldigsxn_ChipetaProcessingAgreementMembergsxn_GasProcessingAgreementByNameAxisexplicitMemberfalsefalseMinimumus-gaap_RangeAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_MinimumMemberus-gaap_RangeAxisexplicitMemberPureStandardhttp://www.xbrl.org/2003/instancepurexbrli04false truefalseD2012Q1_M0322_AmendedAndRestatedMonarchAgreementMemberhttp://www.sec.gov/CIK0001086319duration2012-03-21T00:00:002012-03-22T00:00:00falsefalseAmended and Restated Monarch Agreementgsxn_GasProcessingAgreementByNameAxisxbrldihttp://xbrl.org/2006/xbrldigsxn_AmendedAndRestatedMonarchAgreementMembergsxn_GasProcessingAgreementByNameAxisexplicitMemberMMBtuPerDayDividehttp://www.xbrl.org/2009/utrMMBTUutrhttp://www.xbrl.org/2009/utrDutr0McfPerDayDividehttp://www.xbrl.org/2009/utrMcfutrhttp://www.xbrl.org/2009/utrDutr05false truefalseD2011Q3_M0921_QuestarWetLineAgreementMemberhttp://www.sec.gov/CIK0001086319duration2011-09-20T00:00:002011-09-21T00:00:00falsefalseQPC Transportation Agreementgsxn_GasProcessingAgreementByNameAxisxbrldihttp://xbrl.org/2006/xbrldigsxn_QuestarWetLineAgreementMembergsxn_GasProcessingAgreementByNameAxisexplicitMemberMMBtuPerDayDividehttp://www.xbrl.org/2009/utrMMBTUutrhttp://www.xbrl.org/2009/utrDutr01true 3gsxn_GasProcessingAgreementLineItemsgsxn_falsenadurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1falsefalsefalse00falsefalsefalse2falsefalsefalse00falsefalsefalse3falsefalsefalse00falsefalsefalse4falsefalsefalse00falsefalsefalse5falsefalsefalse00falsefalsefalsexbrli:stringItemTypestringfalse0Gas processing agreements2false 4gsxn_GasProcessingAgreementPrimaryTermgsxn_falsenadurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1falsefalsefalse00falsefalsefalse2falsefalsefalse0010 yearsfalsefalsefalse3falsefalsefalse00falsefalsefalse4falsefalsefalse00falsefalsefalse5falsefalsefalse00falsefalsefalsexbrli:durationItemTypenaRepresents the primary term of the gas processing agreement entered into by the entity.No definition available.false0Primary term of agreement3false 4gsxn_GasProcessingAgreementCapacityOfCryogenicProcessingFacilityToBeBuiltByCounterpartygsxn_falsenadurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1falsefalsefalse00falsefalsefalse2truefalsefalse300000300000falsefalsefalse3falsefalsefalse00falsefalsefalse4falsefalsefalse00falsefalsefalse5falsefalsefalse00falsefalsefalsexbrli:decimalItemTypedecimalRepresents the capacity of cryogenic processing facility to be built by the counterparty to the gas processing agreement.No definition available.false0Capacity of cryogenic processing facility to be built by Chipeta (in Mcf/d)4false 4gsxn_GasProcessingAgreementExtendedPrimaryTermUnlessTerminatedByEitherPartygsxn_falsenadurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1falsefalsefalse00falsefalsefalse2falsefalsefalse001 yearfalsefalsefalse3falsefalsefalse00falsefalsefalse4falsefalsefalse00falsefalsefalse5falsefalsefalse00falsefalsefalsexbrli:durationItemTypenaRepresents the period by which the primary term of agreement will be extended unless terminated by either party giving prior notice.No definition available.false0Extended primary term of agreement unless terminated by either party5false 4gsxn_GasProcessingAgreementTerminationNoticePeriodgsxn_falsenadurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1falsefalsefalse00falsefalsefalse2falsefalsefalse00180 daysfalsefalsefalse3falsefalsefalse00falsefalsefalse4falsefalsefalse00falsefalsefalse5falsefalsefalse00falsefalsefalsexbrli:durationItemTypenaRepresents the period of notice to be given by either party for termination of agreement prior to the expiration of the then-current term.No definition available.false0Notice period for termination of agreement6false 4gsxn_OilAndGasDeliveryCommitmentsAndContractsCommittedPercentageOfProductiongsxn_falsenadurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1falsetruefalse00falsefalsefalse2falsetruefalse00falsefalsefalse3truetruefalse0.900.90falsefalsefalse4falsetruefalse00falsefalsefalse5falsetruefalse00falsefalsefalsenum:percentItemTypepureRepresents the percentage of monthly committed production of the applicable energy source.No definition available.false0Committed monthly percentage of capacity in Chipeta processing plant reserved for cryogenic processing7false 4us-gaap_OilAndGasDeliveryCommitmentsAndContractsDailyProductionus-gaap_truenadurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1falsefalsefalse00falsefalsefalse2truefalsefalse2500025000falsefalsefalse3falsefalsefalse00falsefalsefalse4truefalsefalse2500025000falsefalsefalse5truefalsefalse2500025000falsefalsefalsexbrli:decimalItemTypedecimalAmount of daily production of the applicable energy source.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Industry Guide -Number 2 -Paragraph 8 -Subparagraph A false0Minimum commitment8false 4gsxn_GasProcessingAgreementInitialVolumesOfNaturalGasProductionRelatedToWhichRightToProcessReleasedAndWaivedByCounterpartygsxn_falsenadurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1falsefalsefalse00falsefalsefalse2falsefalsefalse00falsefalsefalse3falsefalsefalse00falsefalsefalse4truefalsefalse5000050000falsefalsefalse5falsefalsefalse00falsefalsefalsexbrli:decimalItemTypedecimalRepresents initial volumes of natural gas production related to which the right to process is released and waived by the counterparty.No definition available.false0Initial volumes of natural gas production related to which the right to process is released and waived by the counterparty (in MMBtu/d)9false 4gsxn_MinimumProductionShortfallDueToNoFutureDrillingAndConstantGasPricesgsxn_falsenadurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1truefalsefalse4800000048000000falsefalsefalse2falsefalsefalse00falsefalsefalse3falsefalsefalse00falsefalsefalse4falsefalsefalse00falsefalsefalse5falsefalsefalse00falsefalsefalsenum:volumeItemTypedecimalRepresents the quantity of possible minimum production shortfall due to no future drilling and constant gas prices.No definition available.false256Quantity of possible future aggregate minimum production shortfall due to no future drilling and constant gas prices (in Mcf)10false 4gsxn_AmountOfMinimumProductionShortfallDueToNoFutureDrillingAndConstantGasPricesgsxn_falsedebitdurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1truefalsefalse3300000033000000USD$falsetruefalse2falsefalsefalse00falsefalsefalse3falsefalsefalse00falsefalsefalse4falsefalsefalse00falsefalsefalse5falsefalsefalse00falsefalsefalsexbrli:monetaryItemTypemonetaryRepresents the value of possible minimum production shortfall due to no future drilling and constant gas prices on an undiscounted gross basis.No definition available.false2Possible minimum production shortfall due to no future drilling and constant gas prices on an undiscounted gross basis11false 4gsxn_DeliveryCommitmentsShortfallAccrualgsxn_falsedebitdurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1truefalsefalse217000217000USD$falsetruefalse2falsefalsefalse00falsefalsefalse3falsefalsefalse00falsefalsefalse4falsefalsefalse00falsefalsefalse5falsefalsefalse00falsefalsefalsexbrli:monetaryItemTypemonetaryRepresents the accrual related to the inability to meet future delivery commitments.No definition available.false2Shortfall commitment accrualfalseGAS PROCESSING AGREEMENTS (Details) (USD $)NoRoundingUnKnownUnKnownUnKnowntruefalsefalseSheethttp://www.gascoenergy.com/role/DisclosureGasProcessingAgreementsDetails511