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Stock-Based Compensation (Details 5) (Partnership Long-Term Incentive Plan, Exterran Partners, L.P.)	3 Months Ended
	Mar. 31, 2015
Stock-based compensation
Maximum number of shares available under the Plan	1,035,378us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized
First anniversary vesting | Partnership Phantom Units
Stock-based compensation
Vesting percentage	33.33%us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardAwardVestingRightsPercentage / us-gaap_AwardTypeAxis = us-gaap_PhantomShareUnitsPSUsMember / dei_LegalEntityAxis = exh_ExterranPartnersLPMember / us-gaap_PlanNameAxis = exh_LongTermIncentivePlanMember / us-gaap_VestingAxis = us-gaap_ShareBasedCompensationAwardTrancheOneMember
Vesting period	1 year
Second anniversary vesting | Partnership Phantom Units
Stock-based compensation
Vesting percentage	33.33%us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardAwardVestingRightsPercentage / us-gaap_AwardTypeAxis = us-gaap_PhantomShareUnitsPSUsMember / dei_LegalEntityAxis = exh_ExterranPartnersLPMember / us-gaap_PlanNameAxis = exh_LongTermIncentivePlanMember / us-gaap_VestingAxis = us-gaap_ShareBasedCompensationAwardTrancheTwoMember
Vesting period	2 years
Third anniversary vesting | Partnership Phantom Units
Stock-based compensation
Vesting percentage	33.33%us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardAwardVestingRightsPercentage / us-gaap_AwardTypeAxis = us-gaap_PhantomShareUnitsPSUsMember / dei_LegalEntityAxis = exh_ExterranPartnersLPMember / us-gaap_PlanNameAxis = exh_LongTermIncentivePlanMember / us-gaap_VestingAxis = us-gaap_ShareBasedCompensationAwardTrancheThreeMember
Vesting period	3 years

X

- Definition

Period which an employee's right to exercise an award is no longer contingent on satisfaction of either a service condition, market condition or a performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (a)(1)

-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Percentage of vesting of share-based compensation awards.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (a)(1)

-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

X

- Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

The maximum number of shares (or other type of equity) originally approved (usually by shareholders and board of directors), net of any subsequent amendments and adjustments, for awards under the equity-based compensation plan. As stock or unit options and equity instruments other than options are awarded to participants, the shares or units remain authorized and become reserved for issuance under outstanding awards (not necessarily vested).

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (a)(3)

-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

+ Details

Name:	us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized
Namespace Prefix:	us-gaap_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	instant