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Long-Term Debt - Revolving Credit Facility and Term Loan (Details) - USD ($)	1 Months Ended	9 Months Ended
	Feb. 28, 2015	Sep. 30, 2015	Dec. 31, 2014
Debt Instrument [Line Items]
Long-term debt		$ 2,075,904,000	$ 2,026,902,000
Partnership’s revolving credit facility due May 2018 | Exterran Partners, L.P.
Debt Instrument [Line Items]
Increase in borrowing capacity	$ 250,000,000.0
Revolving credit facility borrowing capacity	900,000,000.0
Long-term debt		554,000,000	460,000,000
Debt issuance cost		1,300,000
Undrawn capacity under revolving credit facility		346,000,000
Partnership’s term loan facility due May 2018 | Exterran Partners, L.P.
Debt Instrument [Line Items]
Long-term debt	$ 150,000,000.0	$ 150,000,000	$ 150,000,000

X

- Definition

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

+ References

No definition available.

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X

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

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- Definition

Amount of debt issuance costs (for example, but not limited to, legal, accounting, broker, and regulatory fees).

+ References

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- 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

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- Definition

Amount of borrowing capacity currently available under the credit facility (current borrowing capacity less the amount of borrowings outstanding).

+ 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



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- 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 Staff Accounting Bulletin (SAB)



-Number Topic 6



-Section H



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



-Publisher SEC



-Name Regulation S-X (SX)



-Number 210



-Section 02



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