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Business Acquisitions (Details 3) (USD $)
12 Months Ended 0 Months Ended 1 Months Ended
Dec. 31, 2014
Dec. 31, 2013
Aug. 08, 2014
Apr. 10, 2014
Apr. 30, 2014
Mar. 31, 2012
Business Acquisitions            
Purchase consideration $ 494,755,000us-gaap_PaymentsToAcquireBusinessesGross          
Pro forma financial information            
Revenue 2,937,546,000us-gaap_BusinessAcquisitionsProFormaRevenue 3,272,150,000us-gaap_BusinessAcquisitionsProFormaRevenue        
Net income attributable to Exterran common stockholders 100,208,000us-gaap_BusinessAcquisitionsProFormaNetIncomeLoss 127,028,000us-gaap_BusinessAcquisitionsProFormaNetIncomeLoss        
Basic net income per common share attributable to Exterran common stockholders (in dollars per unit) $ 1.49us-gaap_BusinessAcquisitionProFormaEarningsPerShareBasic $ 1.93us-gaap_BusinessAcquisitionProFormaEarningsPerShareBasic        
Diluted net income per common share attributable to Exterran common stockholders (in dollars per unit) $ 1.43us-gaap_BusinessAcquisitionProFormaEarningsPerShareDiluted $ 1.92us-gaap_BusinessAcquisitionProFormaEarningsPerShareDiluted        
Exterran Partners, L.P. | August 2014 MidCon Acquisition            
Business Acquisitions            
Purchase consideration     130,100,000us-gaap_PaymentsToAcquireBusinessesGross
/ us-gaap_BusinessAcquisitionAxis
= exh_August2014MidConCompressionLLCMember
/ dei_LegalEntityAxis
= exh_ExterranPartnersLPMember
     
Exterran Partners, L.P. | April 2014 MidCon Acquisition            
Business Acquisitions            
Purchase consideration       352,900,000us-gaap_PaymentsToAcquireBusinessesGross
/ us-gaap_BusinessAcquisitionAxis
= exh_April2014MidConCompressionLLCMember
/ dei_LegalEntityAxis
= exh_ExterranPartnersLPMember
   
Exterran Partners, L.P. | Common units            
Business Acquisitions            
Issuance of common units to the public         6,210,000us-gaap_PartnersCapitalAccountUnitsSoldInPublicOffering
/ dei_LegalEntityAxis
= exh_ExterranPartnersLPMember
/ us-gaap_PartnerTypeOfPartnersCapitalAccountAxis
= exh_CommonUnitsMember
4,965,000us-gaap_PartnersCapitalAccountUnitsSoldInPublicOffering
/ dei_LegalEntityAxis
= exh_ExterranPartnersLPMember
/ us-gaap_PartnerTypeOfPartnersCapitalAccountAxis
= exh_CommonUnitsMember
Exterran Partners, L.P. | General partner units            
Business Acquisitions            
Issuance of general partner unit to general partner         126,000us-gaap_PartnersCapitalAccountUnitsSaleOfUnits
/ dei_LegalEntityAxis
= exh_ExterranPartnersLPMember
/ us-gaap_PartnerTypeOfPartnersCapitalAccountAxis
= us-gaap_GeneralPartnerMember
 
Exterran Partners, L.P. | Partnership's revolving credit facility due May 2018            
Business Acquisitions            
Payments on revolving credit facility         157,500,000us-gaap_RepaymentsOfLinesOfCredit
/ us-gaap_CreditFacilityAxis
= exh_PartnershipRevolvingCreditFacilityDueMay2018Member
/ dei_LegalEntityAxis
= exh_ExterranPartnersLPMember
 
Exterran Partners, L.P. | Partnership's 6% senior notes due 2022            
Business Acquisitions            
Principle amount of senior notes         350,000,000us-gaap_DebtInstrumentFaceAmount
/ dei_LegalEntityAxis
= exh_ExterranPartnersLPMember
/ us-gaap_LongtermDebtTypeAxis
= exh_PartnershipSeniorNotesDue2022Member
 
EESLP | August 2014 MidCon Acquisition            
Business Acquisitions            
Purchase consideration     4,100,000us-gaap_PaymentsToAcquireBusinessesGross
/ us-gaap_BusinessAcquisitionAxis
= exh_August2014MidConCompressionLLCMember
/ dei_LegalEntityAxis
= exh_ExterranEnergySolutionsLPMember
     
EESLP | April 2014 MidCon Acquisition            
Business Acquisitions            
Purchase consideration       $ 7,700,000us-gaap_PaymentsToAcquireBusinessesGross
/ us-gaap_BusinessAcquisitionAxis
= exh_April2014MidConCompressionLLCMember
/ dei_LegalEntityAxis
= exh_ExterranEnergySolutionsLPMember