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Business Acquisitions (Details) (USD $)
0 Months Ended
Aug. 08, 2014
Mar. 31, 2015
Dec. 31, 2014
Estimated fair value of acquired assets and liabilities assumed as of the acquisition date      
Goodwill   $ 3,738,000us-gaap_Goodwill $ 3,738,000us-gaap_Goodwill
August 2014 MidCon Acquisition      
Estimated fair value of acquired assets and liabilities assumed as of the acquisition date      
Inventory 2,302,000us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedInventory
/ us-gaap_BusinessAcquisitionAxis
= exh_August2014MidConCompressionLLCMember
   
Property, plant and equipment 80,154,000us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedPropertyPlantAndEquipment
/ us-gaap_BusinessAcquisitionAxis
= exh_August2014MidConCompressionLLCMember
   
Goodwill 3,738,000us-gaap_Goodwill
/ us-gaap_BusinessAcquisitionAxis
= exh_August2014MidConCompressionLLCMember
   
Intangible assets 48,373,000us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibleAssetsOtherThanGoodwill
/ us-gaap_BusinessAcquisitionAxis
= exh_August2014MidConCompressionLLCMember
   
Current liabilities (372,000)us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilities
/ us-gaap_BusinessAcquisitionAxis
= exh_August2014MidConCompressionLLCMember
   
Purchase price 134,195,000us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNet
/ us-gaap_BusinessAcquisitionAxis
= exh_August2014MidConCompressionLLCMember
   
Estimated useful life 24 years    
Total acquired identifiable intangible assets 48,373,000us-gaap_FinitelivedIntangibleAssetsAcquired1
/ us-gaap_BusinessAcquisitionAxis
= exh_August2014MidConCompressionLLCMember
   
August 2014 MidCon Acquisition | Customer related      
Estimated fair value of acquired assets and liabilities assumed as of the acquisition date      
Total acquired identifiable intangible assets 21,590,000us-gaap_FinitelivedIntangibleAssetsAcquired1
/ us-gaap_BusinessAcquisitionAxis
= exh_August2014MidConCompressionLLCMember
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= us-gaap_CustomerRelationshipsMember
   
Average Useful Life 25 years    
August 2014 MidCon Acquisition | Contract based      
Estimated fair value of acquired assets and liabilities assumed as of the acquisition date      
Total acquired identifiable intangible assets 26,783,000us-gaap_FinitelivedIntangibleAssetsAcquired1
/ us-gaap_BusinessAcquisitionAxis
= exh_August2014MidConCompressionLLCMember
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= us-gaap_CustomerContractsMember
   
Average Useful Life 5 years    
August 2014 MidCon Acquisition | Exterran Partners, L.P.      
Business Acquisitions      
Number of compressor units acquired 162exh_BusinessCombinationCompressorUnitsAcquiredNumber
/ us-gaap_BusinessAcquisitionAxis
= exh_August2014MidConCompressionLLCMember
/ dei_LegalEntityAxis
= exh_ExterranPartnersLPMember
   
Horsepower of compressor units acquired 110,000exh_BusinessCombinationCompressorUnitsAcquiredHorsepower
/ us-gaap_BusinessAcquisitionAxis
= exh_August2014MidConCompressionLLCMember
/ dei_LegalEntityAxis
= exh_ExterranPartnersLPMember
   
Purchase consideration 130,100,000us-gaap_PaymentsToAcquireBusinessesGross
/ us-gaap_BusinessAcquisitionAxis
= exh_August2014MidConCompressionLLCMember
/ dei_LegalEntityAxis
= exh_ExterranPartnersLPMember
   
August 2014 MidCon Acquisition | Exterran Partners, L.P. | BHP Billiton      
Business Acquisitions      
Contract operations services agreement term 5 years    
August 2014 MidCon Acquisition | EESLP      
Business Acquisitions      
Purchase consideration $ 4,100,000us-gaap_PaymentsToAcquireBusinessesGross
/ us-gaap_BusinessAcquisitionAxis
= exh_August2014MidConCompressionLLCMember
/ dei_LegalEntityAxis
= exh_ExterranEnergySolutionsLPMember