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

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Contractual interest rate for funds borrowed, under the debt agreement.

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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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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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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 - April 2014 MidCon Acquisition (Details) hp in Thousands		1 Months Ended	9 Months Ended
	Apr. 10, 2014 USD ($) compressor_unit hp	Apr. 30, 2014 USD ($) shares	Sep. 30, 2015 USD ($)	Sep. 30, 2014 USD ($)	Dec. 31, 2014
Business Acquisitions
Purchase consideration			$ 0	$ 494,755,000
Exterran Partners, L.P. \| Partnership's 6% senior notes due 2022
Business Acquisitions
Principle amount of senior notes		$ 350,000,000.0
Interest rate (as a percent)		6.00%	6.00%		6.00%
Exterran Partners, L.P. \| Common units
Business Acquisitions
Units sold (in units) \| shares		6,210,000
April 2014 MidCon Acquisition
Estimated fair value of acquired assets and liabilities assumed as of the acquisition date
Inventory	$ 4,357,000
Property, plant and equipment	314,556,000
Intangible assets	42,474,000
Current liabilities	(827,000)
Purchase price	$ 360,560,000
Property, plant and equipment useful life	25 years
Total acquired identifiable intangible assets	$ 42,474,000
April 2014 MidCon Acquisition \| Customer related
Estimated fair value of acquired assets and liabilities assumed as of the acquisition date
Total acquired identifiable intangible assets	$ 4,701,000
Average useful life of intangible assets	25 years
April 2014 MidCon Acquisition \| Contract based
Estimated fair value of acquired assets and liabilities assumed as of the acquisition date
Total acquired identifiable intangible assets	$ 37,773,000
Average useful life of intangible assets	7 years
April 2014 MidCon Acquisition \| Exterran Partners, L.P.
Business Acquisitions
Number of compressor units acquired \| compressor_unit	337
Horsepower of compressor units acquired \| hp	444
Purchase consideration	$ 352,900,000
Transaction costs related to acquisition				$ 1,500,000
April 2014 MidCon Acquisition \| Exterran Partners, L.P. \| Williams Partners, L.P.
Business Acquisitions
Contract operations services agreement term	7 years
April 2014 MidCon Acquisition \| EESLP
Business Acquisitions
Purchase consideration	$ 7,700,000