Amount of horsepower of compressor units acquired during the period.

No definition available.

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- Definition

Represents the number of compressor units acquired during the period.

+ References

No definition available.

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- Definition

Represents the length of contract operations services agreement to be effective at of the closing of the acquisition for assets acquired in the transaction, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

No definition available.

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- Definition

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.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 350

-SubTopic 30

-Section 50

-Paragraph 1

-Subparagraph (a)(3)

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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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-Topic 805

-SubTopic 10

-Section 25

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- Definition

This element represents the amount of revenue of the acquiree since the acquisition date included in the consolidated income statement for the reporting period.

+ References

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-Publisher FASB

-Name Accounting Standards Codification

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-Section 50

-Paragraph 2

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- Definition

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

+ References

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- Definition

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

+ References

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- Definition

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

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 805

-SubTopic 20

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-Paragraph 1

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- Definition

Amount recognized for assets, including goodwill, in excess of (less than) the aggregate liabilities assumed.

+ References

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- Definition

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

+ References

No definition available.

+ Details

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- Definition

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.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 350

-SubTopic 20

-Section 50

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-SubTopic 20

-Section 45

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- Definition

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

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-Paragraph 13

-Subparagraph (b)

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- Definition

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.

+ References

No definition available.

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Period Type:

Business Acquisitions (Details) (USD $)	12 Months Ended	0 Months Ended	5 Months Ended
Business Acquisitions (Details) (USD $)	Dec. 31, 2014	Aug. 08, 2014 hp CompressorUnit	Dec. 31, 2014	Dec. 31, 2013
Business Acquisitions
Purchase consideration	$ 483,012,000
Estimated fair value of acquired assets and liabilities assumed as of the acquisition date
Goodwill	127,757,000us-gaap_Goodwill		127,757,000us-gaap_Goodwill	124,019,000us-gaap_Goodwill
August 2014 MidCon Acquisition
Business Acquisitions
Number of compressor units acquired		162
Horsepower of compressor units acquired		110,000
Purchase consideration		130,100,000
Transaction costs	1,000,000
Estimated fair value of acquired assets and liabilities assumed as of the acquisition date
Property, plant and equipment		78,356,000
Goodwill		3,738,000
Intangible assets		48,373,000
Current liabilities		(372,000)
Purchase price		130,095,000
Estimated average remaining useful life		24 years
Total acquired identifiable intangible assets		48,373,000
Pro forma financial information
Revenue attributable to assets acquired from date of acquisition to period end			9,200,000
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		21,590,000
Average Useful Life		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		26,783,000
Average Useful Life		5 years
August 2014 MidCon Acquisition \| BHP Billiton
Business Acquisitions
Contract operations services agreement term		5 years
August 2014 MidCon Acquisition \| Wholly-owned subsidiary of Exterran Holdings
Business Acquisitions
Purchase consideration		$ 4,100,000