Represents the amount of increase (decrease) in maximum borrowing capacity under the credit facility.

No definition available.

Name:	exh_LineOfCreditFacilityMaximumBorrowingCapacityIncreaseDecrease
Namespace Prefix:	exh_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.5-02.19(b),22(b))

-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 19, 22

-Article 5

+ Details

Name:	us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Amount of long-term debt and capital lease obligation due after one year or beyond the normal operating cycle, if longer.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.5-02.22)

-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 22

-Article 5

Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Staff Accounting Bulletin (SAB)

-Number Topic 6

-Section H

+ Details

Name:	us-gaap_LongTermDebtAndCapitalLeaseObligations
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Details

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

- Details

Name:	us-gaap_CreditFacilityAxis=exh_PartnershipRevolvingCreditFacilityMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_CreditFacilityAxis=exh_PartnershipTermLoanFacilityDueMay2018Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Subsequent Event (Details) (USD $)	0 Months Ended
Subsequent Event (Details) (USD $)	Feb. 04, 2015	Dec. 31, 2014	Dec. 31, 2013	Mar. 31, 2013	Mar. 31, 2012	Mar. 31, 2011	Nov. 30, 2010
Subsequent Event
Long-term debt		$ 2,026,902,000	$ 1,502,155,000
Partnership's term loan facility due May 2018 \| Exterran Partners, L.P.
Subsequent Event
Long-term debt		150,000,000	150,000,000
Partnership's revolving credit facility \| Exterran Partners, L.P.
Subsequent Event
Revolving credit facility borrowing capacity				650,000,000	750,000,000	550,000,000	400,000,000
Partnership's revolving credit facility \| Subsequent Event \| Exterran Partners, L.P.
Subsequent Event
Increase in borrowing capacity	250,000,000
Revolving credit facility borrowing capacity	$ 900,000,000