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August 2014 MidCon Acquisition and April 2014 MidCon Acquisition (Details) (USD $) | 9 Months Ended |  |  | 1 Months Ended | 0 Months Ended | 2 Months Ended | 0 Months Ended | 9 Months Ended | 0 Months Ended | 6 Months Ended | 0 Months Ended | 9 Months Ended | 0 Months Ended
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Sep. 30, 2014 | Sep. 30, 2014 Exterran Partners, L.P. Partnership 2014 Notes | Apr. 30, 2014 Exterran Partners, L.P. Partnership 2014 Notes | Apr. 30, 2014 Exterran Partners, L.P. Common units | Aug. 08, 2014 August 2014 MidCon Acquisition | Sep. 30, 2014 August 2014 MidCon Acquisition | Aug. 08, 2014 August 2014 MidCon Acquisition Customer related | Aug. 08, 2014 August 2014 MidCon Acquisition Contract based | Aug. 08, 2014 August 2014 MidCon Acquisition Exterran Partners, L.P. CompressorUnit hp | Sep. 30, 2014 August 2014 MidCon Acquisition Exterran Partners, L.P. | Aug. 08, 2014 August 2014 MidCon Acquisition Exterran Partners, L.P. BHP Billiton | Aug. 08, 2014 August 2014 MidCon Acquisition EESLP | Apr. 10, 2014 April 2014 MidCon Acquisition | Sep. 30, 2014 April 2014 MidCon Acquisition | Apr. 10, 2014 April 2014 MidCon Acquisition Customer related | Apr. 10, 2014 April 2014 MidCon Acquisition Contract based | Apr. 10, 2014 April 2014 MidCon Acquisition Exterran Partners, L.P. hp CompressorUnit | Sep. 30, 2014 April 2014 MidCon Acquisition Exterran Partners, L.P. | Apr. 10, 2014 April 2014 MidCon Acquisition Exterran Partners, L.P. Access | Apr. 10, 2014 April 2014 MidCon Acquisition EESLP
August 2014 MidCon Acquisition and April 2014 MidCon Acquisition |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of compressor units acquired |  |  |  |  |  |  |  |  | 162 |  |  |  |  |  |  |  | 337 |  |  |
Horsepower of compressor units acquired |  |  |  |  |  |  |  |  | 110,000 |  |  |  |  |  |  |  | 444,000 |  |  |
Purchase consideration | $ 494,755,000 |  |  |  |  |  |  |  | $ 130,100,000 |  |  | $ 4,100,000 |  |  |  |  | $ 352,900,000 |  |  | $ 7,700,000
Contract operations services agreement term |  |  |  |  |  |  |  |  |  |  | 5 years |  |  |  |  |  |  |  | 7 years |
Transaction costs |  |  |  |  |  |  |  |  |  | 900,000 |  |  |  |  |  |  |  | 1,500,000 |  |
Units sold |  |  |  | 6,210,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Principle amount of senior notes |  |  | 350,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Interest rate (as a percent) |  | 6.00% | 6.00% |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Preliminary fair value of acquired assets and liabilities assumed as of the acquisition date |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Inventory |  |  |  |  | 2,302,000 |  |  |  |  |  |  |  | 4,357,000 |  |  |  |  |  |  |
Property, plant and equipment |  |  |  |  | 80,154,000 |  |  |  |  |  |  |  | 314,556,000 |  |  |  |  |  |  |
Goodwill | 3,738,000 |  |  |  | 3,738,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Intangible assets |  |  |  |  | 48,373,000 |  |  |  |  |  |  |  | 42,474,000 |  |  |  |  |  |  |
Current liabilities |  |  |  |  | (372,000) |  |  |  |  |  |  |  | (827,000) |  |  |  |  |  |  |
Purchase price |  |  |  |  | 134,195,000 |  |  |  |  |  |  |  | 360,560,000 |  |  |  |  |  |  |
Estimated average remaining useful life |  |  |  |  | 24 years |  |  |  |  |  |  |  | 25 years |  |  |  |  |  |  |
Total acquired identifiable intangible assets |  |  |  |  | 48,373,000 |  | 21,590,000 | 26,783,000 |  |  |  |  | 42,474,000 |  | 4,701,000 | 37,773,000 |  |  |  |
Average Useful Life |  |  |  |  |  |  | 25 years | 5 years |  |  |  |  |  |  | 25 years | 7 years |  |  |  |
Pro forma financial information |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Revenue attributable to the assets acquired from the date of acquisition to period end |  |  |  |  |  | $ 3,400,000 |  |  |  |  |  |  |  | $ 42,700,000 |  |  |  |  |  |

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