2.4.0.84120 - Disclosure - Commitments and Contingencies (Details)truefalseIn Millions, unless otherwise specifiedfalse1false USDfalsefalse$D2013Q2YTDhttp://www.sec.gov/CIK0001367064duration2013-01-01T00:00:002013-06-30T00:00:00USDStandardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$2false USDfalsefalse$D2013Q2_18Mhttp://www.sec.gov/CIK0001367064duration2012-01-01T00:00:002013-06-30T00:00:00USDStandardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$1true 1us-gaap_CommitmentsAndContingenciesDisclosureAbstractus-gaap_truenadurationfalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalse2falsefalsefalse00falsefalsefalsexbrli:stringItemTypestringfalse0Commitments and Contingencies2false 2exlp_AdValoremTaxExpenseBenefitexlp_falsedebitdurationfalsefalsefalsefalsefalsefalsefalsetruenegatedLabel1truefalsefalse29000002.9USD$falsetruefalse2truefalsefalse72000007.2USD$falsetruefalsexbrli:monetaryItemTypemonetaryThe amount of ad valorem tax expense (benefit) included as a component of cost of goods sold (excluding depreciation and amortization).No definition available.false2Ad valorem tax benefit3false 2exlp_AdValoremTaxExpenseBenefitApprovedexlp_falsedebitdurationfalsefalsefalsefalsefalsefalsefalsetruenegatedLabel1falsefalsefalse00falsefalsefalse2truefalsefalse13000001.3USD$falsetruefalsexbrli:monetaryItemTypemonetaryThe amount of ad valorem tax expense (benefit) agreed to by one or more appraisal review boards and/or county appraisal districts.No definition available.false2Ad valorem tax benefit agreed to by a number of appraisal review boards and county appraisal districtsfalseCommitments and Contingencies (Details) (USD $)HundredThousandsUnKnownUnKnownUnKnowntruefalsefalseSheethttp://www.exterran.com/role/DisclosureCommitmentsAndContingenciesDetails23