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Business Acquisitions - Pro Forma Financial Information (Details) - USD ($)			1 Months Ended	3 Months Ended	9 Months Ended
	Aug. 08, 2014	Apr. 10, 2014	Apr. 30, 2014	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Business Acquisitions
Purchase consideration					$ 0	$ 494,755,000
Pro forma financial information
Revenue				$ 726,144,000		2,143,918,000
Net income attributable to Exterran common stockholders				$ 34,151,000		$ 81,064,000
Basic net income per common share attributable to Exterran common stockholders				$ 0.51		$ 1.21
Diluted net income per common share attributable to Exterran common stockholders				$ 0.48		$ 1.15
Exterran Partners, L.P. | August 2014 MidCon Acquisition
Business Acquisitions
Purchase consideration	$ 130,100,000
Exterran Partners, L.P. | April 2014 MidCon Acquisition
Business Acquisitions
Purchase consideration		$ 352,900,000
Exterran Partners, L.P. | Common units
Business Acquisitions
Issuance of common units to the public (in units)			6,210,000
Exterran Partners, L.P. | General partner units
Business Acquisitions
Issuance of general partner units to general partner (in units)			126,000
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. | Partnership's 6% senior notes due 2022
Business Acquisitions
Principle amount of senior notes			$ 350,000,000.0
EESLP | August 2014 MidCon Acquisition
Business Acquisitions
Purchase consideration	$ 4,100,000
EESLP | April 2014 MidCon Acquisition
Business Acquisitions
Purchase consideration		$ 7,700,000

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The pro forma basic net income per share for a period as if the business combination or combinations had been completed at the beginning of a period.

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The pro forma net Income or Loss for the period as if the business combination or combinations had been completed at the beginning of a period.

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

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