Amount of horsepower of compressor units acquired during the period.

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Represents the number of compressor units acquired during the period.

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Represents the length of contract operations services agreement to be effective at of the closing of the acquisition for assets acquired in the transaction.

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Weighted average amortization period of finite-lived intangible assets acquired either individually or as part of a group of assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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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.

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This element represents acquisition-related costs incurred to effect a business combination which costs have been expensed during the period. Such costs include finder's fees; advisory, legal, accounting, valuation, and other professional or consulting fees; general administrative costs, including the costs of maintaining an internal acquisitions department; and may include costs of registering and issuing debt and equity securities.

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Amount of liabilities due within one year or within the normal operating cycle, if longer, assumed at the acquisition date.

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Amount of intangible assets, excluding goodwill, acquired at the acquisition date.

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The amount of inventory recognized as of the acquisition date.

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Amount recognized as of the acquisition date for the identifiable assets acquired in excess of (less than) the aggregate liabilities assumed.

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The amount of property, plant, and equipment recognized as of the acquisition date.

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Amount of increase in assets, excluding financial assets, lacking physical substance with a definite life, resulting from a business combination.

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Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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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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Useful life of long lived, physical assets used in the normal conduct of business and not intended for resale, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Examples include, but not limited to, land, buildings, machinery and equipment, office equipment, furniture and fixtures, and computer equipment.

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Business Acquisitions - August 2014 MidCon Acquisition (Details) hp in Thousands, $ in Thousands		9 Months Ended
	Aug. 08, 2014 USD ($) compressor_unit hp	Sep. 30, 2015 USD ($)	Sep. 30, 2014 USD ($)	Dec. 31, 2014 USD ($)
Business Acquisitions
Purchase consideration		$ 0	$ 494,755
Estimated fair value of acquired assets and liabilities assumed as of the acquisition date
Goodwill		$ 3,738		$ 3,738
August 2014 MidCon Acquisition
Estimated fair value of acquired assets and liabilities assumed as of the acquisition date
Inventory	$ 2,302
Property, plant and equipment	80,154
Goodwill	3,738
Intangible assets	48,373
Current liabilities	(372)
Purchase price	$ 134,195
Property, plant and equipment useful life	24 years
Total acquired identifiable intangible assets	$ 48,373
August 2014 MidCon Acquisition \| Customer related
Estimated fair value of acquired assets and liabilities assumed as of the acquisition date
Total acquired identifiable intangible assets	$ 21,590
Average useful life of intangible assets	25 years
August 2014 MidCon Acquisition \| Contract based
Estimated fair value of acquired assets and liabilities assumed as of the acquisition date
Total acquired identifiable intangible assets	$ 26,783
Average useful life of intangible assets	5 years
August 2014 MidCon Acquisition \| Exterran Partners, L.P.
Business Acquisitions
Number of compressor units acquired \| compressor_unit	162
Horsepower of compressor units acquired \| hp	110
Purchase consideration	$ 130,100
Transaction costs related to acquisition			$ 900
August 2014 MidCon Acquisition \| Exterran Partners, L.P. \| BHP Billiton
Business Acquisitions
Contract operations services agreement term	5 years
August 2014 MidCon Acquisition \| EESLP
Business Acquisitions
Purchase consideration	$ 4,100