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Subsequent Events (Details) (Subsequent events, USD $) In Millions, except Share data, unless otherwise specified	0 Months Ended
	Apr. 17, 2015 hp customer CompressorUnit	Apr. 17, 2015
Subsidiary | Exterran Partners, L.P.
Transactions related to the partnership
Number of partnership customers with service agreements	60exh_RelatedPartyTransactionServiceAgreementsSoldNumberOfCustomers / us-gaap_CounterpartyNameAxis = exh_ExterranPartnersLPMember / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = us-gaap_SubsidiariesMember / us-gaap_SubsequentEventTypeAxis = us-gaap_SubsequentEventMember
Number of compressor units used to provide compression services	238exh_RelatedPartyTransactionCompressorUnitsUsedInServiceAgreements / us-gaap_CounterpartyNameAxis = exh_ExterranPartnersLPMember / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = us-gaap_SubsidiariesMember / us-gaap_SubsequentEventTypeAxis = us-gaap_SubsequentEventMember
Horsepower of compressor units used to provide compression services	148,000exh_RelatedPartyTransactionCompressorUnitsUsedInServiceAgreementsHorsepower / us-gaap_CounterpartyNameAxis = exh_ExterranPartnersLPMember / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = us-gaap_SubsidiariesMember / us-gaap_SubsequentEventTypeAxis = us-gaap_SubsequentEventMember
Percentage of available horsepower of combined U.S. contract operations business from service agreements sold to the partnership	3.00%exh_PercentageOfAvailableHorsepowerProvidedByRelatedParty / us-gaap_CounterpartyNameAxis = exh_ExterranPartnersLPMember / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = us-gaap_SubsidiariesMember / us-gaap_SubsequentEventTypeAxis = us-gaap_SubsequentEventMember
Number of compressor units sold	179exh_RelatedPartyTransactionCompressorUnitsSoldNumber / us-gaap_CounterpartyNameAxis = exh_ExterranPartnersLPMember / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = us-gaap_SubsidiariesMember / us-gaap_SubsequentEventTypeAxis = us-gaap_SubsequentEventMember
Horsepower of compressor units sold	66,000exh_RelatedPartyTransactionCompressorUnitsSoldHorsepower / us-gaap_CounterpartyNameAxis = exh_ExterranPartnersLPMember / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = us-gaap_SubsidiariesMember / us-gaap_SubsequentEventTypeAxis = us-gaap_SubsequentEventMember
Consideration received for sale of assets	$ 102.3us-gaap_SignificantAcquisitionsAndDisposalsAcquisitionCostsOrSaleProceeds / us-gaap_CounterpartyNameAxis = exh_ExterranPartnersLPMember / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = us-gaap_SubsidiariesMember / us-gaap_SubsequentEventTypeAxis = us-gaap_SubsequentEventMember	$ 102.3us-gaap_SignificantAcquisitionsAndDisposalsAcquisitionCostsOrSaleProceeds / us-gaap_CounterpartyNameAxis = exh_ExterranPartnersLPMember / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = us-gaap_SubsidiariesMember / us-gaap_SubsequentEventTypeAxis = us-gaap_SubsequentEventMember
Exterran Partners, L.P. | Common units
Transactions related to the partnership
Units issued (in shares)	4,000,000us-gaap_PartnersCapitalAccountUnitsAcquisitions / dei_LegalEntityAxis = exh_ExterranPartnersLPMember / us-gaap_PartnerTypeOfPartnersCapitalAccountAxis = exh_CommonUnitsMember / us-gaap_SubsequentEventTypeAxis = us-gaap_SubsequentEventMember
Exterran Partners, L.P. | General partner units
Transactions related to the partnership
Units issued (in shares)	80,000us-gaap_PartnersCapitalAccountUnitsAcquisitions / dei_LegalEntityAxis = exh_ExterranPartnersLPMember / us-gaap_PartnerTypeOfPartnersCapitalAccountAxis = us-gaap_GeneralPartnerMember / us-gaap_SubsequentEventTypeAxis = us-gaap_SubsequentEventMember

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- Definition

Percentage of available domestic horsepower of the entity provided by the related party under service agreements sold during the period.

+ References

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Amount of horsepower of compressor units sold to the related party during the period.

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Change in the number of units for each class of partners' capital accounts during the year due to acquisitions. Partners include general, limited and preferred partners.

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