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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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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- 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.

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- Definition

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

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 805

-SubTopic 20

-Section 50

-Paragraph 1

-Subparagraph (c)

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-Topic 805

-SubTopic 10

-Section 55

-Paragraph 37

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- Definition

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

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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

-Paragraph 1

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-Topic 350

-SubTopic 20

-Section 45

-Paragraph 1

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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.

+ References

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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-Topic 230

-SubTopic 10

-Section 45

-Paragraph 13

-Subparagraph (b)

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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.

+ References

No definition available.

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Business Acquisitions (Details) (USD $)	0 Months Ended
Business Acquisitions (Details) (USD $)	Aug. 08, 2014 CompressorUnit hp	Mar. 31, 2015	Dec. 31, 2014
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
August 2014 MidCon Acquisition
Business Acquisitions
Number of compressor units acquired	162
Horsepower of compressor units acquired	110,000
Purchase consideration	130,100,000
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
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