2.4.0.84112 - Disclosure - Commitments and Contingencies (Details 3)truefalsefalse1false USDfalsefalse$D2013Q2YTDhttp://www.sec.gov/CIK0001168054duration2013-01-01T00:00:002013-06-30T00:00:00USDStandardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$2false USDtruefalse$D2012Q4_M1211_HitchEnterprisesCaseMemberhttp://www.sec.gov/CIK0001168054duration2012-12-10T00:00:002012-12-11T00:00:00falsefalseHitch Enterprises, Inc., et al. v. Cimarex Energy Co., et al.us-gaap_LossContingenciesByNatureOfContingencyAxisxbrldihttp://xbrl.org/2006/xbrldixec_HitchEnterprisesCaseMemberus-gaap_LossContingenciesByNatureOfContingencyAxisexplicitMemberUSDStandardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$3false USDtruefalse$D2012Q4_HitchEnterprisesCaseMemberhttp://www.sec.gov/CIK0001168054duration2012-10-01T00:00:002012-12-31T00:00:00falsefalseHitch Enterprises, Inc., et al. v. Cimarex Energy Co., et al.us-gaap_LossContingenciesByNatureOfContingencyAxisxbrldihttp://xbrl.org/2006/xbrldixec_HitchEnterprisesCaseMemberus-gaap_LossContingenciesByNatureOfContingencyAxisexplicitMemberUSDStandardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$4false USDtruefalse$D2011Q3_M08_HelmerichAndPayneCaseMemberhttp://www.sec.gov/CIK0001168054duration2011-08-01T00:00:002011-08-31T00:00:00falsefalseH.B. Krug, et al versus H&Pus-gaap_LossContingenciesByNatureOfContingencyAxisxbrldihttp://xbrl.org/2006/xbrldixec_HelmerichAndPayneCaseMemberus-gaap_LossContingenciesByNatureOfContingencyAxisexplicitMemberUSDStandardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$5false USDtruefalse$D2009Q1_M01_HelmerichAndPayneCaseMemberhttp://www.sec.gov/CIK0001168054duration2009-01-01T00:00:002009-01-31T00:00:00falsefalseH.B. Krug, et al versus H&Pus-gaap_LossContingenciesByNatureOfContingencyAxisxbrldihttp://xbrl.org/2006/xbrldixec_HelmerichAndPayneCaseMemberus-gaap_LossContingenciesByNatureOfContingencyAxisexplicitMemberUSDStandardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$6false USDtruefalse$D2008_HelmerichAndPayneCaseMemberhttp://www.sec.gov/CIK0001168054duration2008-01-01T00:00:002008-12-31T00:00:00falsefalseH.B. Krug, et al versus H&Pus-gaap_LossContingenciesByNatureOfContingencyAxisxbrldihttp://xbrl.org/2006/xbrldixec_HelmerichAndPayneCaseMemberus-gaap_LossContingenciesByNatureOfContingencyAxisexplicitMemberUSDStandardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$1true 3us-gaap_LossContingenciesLineItemsus-gaap_truenadurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1falsefalsefalse00falsefalsefalse2falsefalsefalse00falsefalsefalse3falsefalsefalse00falsefalsefalse4falsefalsefalse00falsefalsefalse5falsefalsefalse00falsefalsefalse6falsefalsefalse00falsefalsefalsexbrli:stringItemTypestringfalse0Loss Contingencies2false 4xec_InitialSettlementToPlaintiffxec_falsedebitdurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1falsefalsefalse00falsefalsefalse2truefalsefalse1640000016400000USD$falsetruefalse3falsefalsefalse00falsefalsefalse4falsefalsefalse00falsefalsefalse5falsefalsefalse00falsefalsefalse6falsefalsefalse00falsefalsefalsexbrli:monetaryItemTypemonetaryThis element represents the initial settlement reached with plaintiff at mediation.No definition available.false2Preliminary resolution amount3false 4us-gaap_LossContingencyLossInPeriodus-gaap_truedebitdurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1falsefalsefalse00falsefalsefalse2falsefalsefalse00falsefalsefalse3truefalsefalse1640000016400000falsefalsefalse4falsefalsefalse00falsefalsefalse5falsefalsefalse00falsefalsefalse6truefalsefalse119600000119600000falsefalsefalsexbrli:monetaryItemTypemonetaryThe amount of loss pertaining to the specified contingency that was charged against earnings in the period, including the effects of revisions in previously reported estimates.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 450 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6952336&loc=d3e14326-108349 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 5 -Paragraph 9 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. false2Accrued litigation expense4false 4xec_AwardToPlaintiffDamagesAndDisgorgementxec_falsedebitdurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1falsefalsefalse00falsefalsefalse2falsefalsefalse00falsefalsefalse3falsefalsefalse00falsefalsefalse4falsefalsefalse00falsefalsefalse5truefalsefalse119600000119600000falsefalsefalse6falsefalsefalse00falsefalsefalsexbrli:monetaryItemTypemonetaryThis element represents the aggregate amount of the damages and disgorgement awarded by the court.No definition available.false2Award to plaintiff, damages and disgorgement5false 4xec_InitialAwardToPlaintiffDisgorgementxec_falsedebitdurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1falsefalsefalse00falsefalsefalse2falsefalsefalse00falsefalsefalse3falsefalsefalse00falsefalsefalse4truefalsefalse112700000112700000falsefalsefalse5falsefalsefalse00falsefalsefalse6falsefalsefalse00falsefalsefalsexbrli:monetaryItemTypemonetaryThis element represents the amount of damages initially awarded by the court from estimated potential compounded profits.No definition available.false2Initial award to plaintiff, disgorgement6false 4xec_AwardToPlaintiffDamagesxec_falsedebitdurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1falsefalsefalse00falsefalsefalse2falsefalsefalse00falsefalsefalse3falsefalsefalse00falsefalsefalse4truefalsefalse68450006845000falsefalsefalse5falsefalsefalse00falsefalsefalse6falsefalsefalse00falsefalsefalsexbrli:monetaryItemTypemonetaryThis element represents the amount of damages awarded by court judgment.No definition available.false2Award to plaintiff, damages7true 4xec_ChangesInAccruedLiabilitiesRelatedToLawsuitRollForwardxec_falsenadurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1falsefalsefalse00falsefalsefalse2falsefalsefalse00falsefalsefalse3falsefalsefalse00falsefalsefalse4falsefalsefalse00falsefalsefalse5falsefalsefalse00falsefalsefalse6falsefalsefalse00falsefalsefalsexbrli:stringItemTypestringfalse0Changes in accrued liabilities8false 5xec_AccruedLiabilitiesRelatedToLawsuitxec_falsecreditinstantfalsefalsefalsefalsefalsetruefalsefalseperiodStartLabel1truefalsefalse155374000155374000falsefalsefalse2falsefalsefalse00falsefalsefalse3falsefalsefalse00falsefalsefalse4falsefalsefalse00falsefalsefalse5falsefalsefalse00falsefalsefalse6falsefalsefalse00falsefalsefalsexbrli:monetaryItemTypemonetaryCarrying value as of the balance sheet date of obligations incurred and payable related to H.B. Krug, et al versus H&P litigation.No definition available.false2Accrued liabilities related to lawsuit at beginning of period9false 5xec_AccruedPostJudgmentInterestAndCostsxec_falsecreditdurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1truefalsefalse46920004692000falsefalsefalse2falsefalsefalse00falsefalsefalse3falsefalsefalse00falsefalsefalse4falsefalsefalse00falsefalsefalse5falsefalsefalse00falsefalsefalse6falsefalsefalse00falsefalsefalsexbrli:monetaryItemTypemonetaryRepresents the accrued post-judgment interest and costs related to H.B. Krug, et al versus H&P litigation.No definition available.false2Accrued post-judgment interest and costs10false 5xec_AccruedLiabilitiesRelatedToLawsuitxec_falsecreditinstantfalsefalsefalsefalsefalsefalsetruefalseperiodEndLabel1truefalsefalse160066000160066000USD$falsetruefalse2falsefalsefalse00falsefalsefalse3falsefalsefalse00falsefalsefalse4falsefalsefalse00falsefalsefalse5falsefalsefalse00falsefalsefalse6falsefalsefalse00falsefalsefalsexbrli:monetaryItemTypemonetaryCarrying value as of the balance sheet date of obligations incurred and payable related to H.B. Krug, et al versus H&P litigation.No definition available.false2Accrued liabilities related to lawsuit at ending of periodfalseCommitments and Contingencies (Details 3) (USD $)NoRoundingUnKnownUnKnownUnKnowntruefalsefalseSheethttp://www.cimarex.com/role/DisclosureCommitmentsAndContingenciesDetails3610