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Business Acquisitions - Unaudited Pro Forma Financial Information (Narratives) (Details) - USD ($)					1 Months Ended	12 Months Ended
	Dec. 04, 2015	Nov. 03, 2015	Aug. 08, 2014	Apr. 10, 2014	Apr. 30, 2014	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Business Acquisitions
Purchase consideration						$ 0	$ 494,755,000	$ 0
Principle amount of senior notes	$ 350,000,000.0
Payments on revolving credit facility	$ 369,200,000	$ 326,500,000
Exterran Partners, L.P. | Partnership's revolving credit facility due May 2018
Business Acquisitions
Payments on revolving credit facility				$ 157,500,000
Exterran Partners, L.P. | Common units
Business Acquisitions
Issuance of common units to the public (in units)				6,200,000	6,210,000
Exterran Partners, L.P. | General partner units
Business Acquisitions
Issuance of general partner unit to general partner (in units)				126,000	126,000
Exterran Partners, L.P. | Partnership's 6% senior notes due 2022
Business Acquisitions
Principle amount of senior notes				$ 350,000,000.0	$ 350,000,000.0
August 2014 MidCon Acquisition
Business Acquisitions
Purchase consideration			$ 130,100,000
August 2014 MidCon Acquisition | Exterran Partners, L.P.
Business Acquisitions
Purchase consideration			130,100,000
August 2014 MidCon Acquisition | EESLP
Business Acquisitions
Purchase consideration			$ 4,100,000
April 2014 MidCon Acquisition
Business Acquisitions
Purchase consideration				$ 352,900,000
Issuance of common units to the public (in units)				6,200,000
April 2014 MidCon Acquisition | Partnership's 6% senior notes due 2022
Business Acquisitions
Principle amount of senior notes				$ 350,000,000.0
April 2014 MidCon Acquisition | Exterran Partners, L.P.
Business Acquisitions
Purchase consideration				352,900,000
April 2014 MidCon Acquisition | EESLP
Business Acquisitions
Purchase consideration				$ 7,700,000

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Face (par) amount of debt instrument at time of issuance.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 55
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Total units issued during the year due to the sale of units. All partners include general, limited and preferred partners.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
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The number of units sold in a public offering of each class of partners' capital account. Units represent shares of ownership of the general, limited, and preferred partners.

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The cash outflow associated with the acquisition of business during the period. The cash portion only of the acquisition price.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Investing Activities
-URI http://asc.fasb.org/extlink&oid=6516133

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Amount of cash outflow for payment of an obligation from a lender, including but not limited to, letter of credit, standby letter of credit and revolving credit arrangements.

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