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Transactions Related to the Partnership (Details) (USD $) | 1 Months Ended | 3 Months Ended | 9 Months Ended | 1 Months Ended
--- | --- | --- | --- | ---
Mar. 31, 2012 | Sep. 30, 2013 | Sep. 30, 2012 | Sep. 30, 2013 | Sep. 30, 2012 | Mar. 31, 2013 Exterran Partners, L.P. customer CompressorUnit hp | Mar. 31, 2012 Exterran Partners, L.P. CompressorUnit hp customer
Transactions related to the partnership |  |  |  |  |  |  |
Number of partnership customers with service agreements |  |  |  |  |  | 50 | 39
Number of compressor units used to provide compression services |  |  |  |  |  | 363 | 406
Horsepower of compressor units used to provide compression services |  |  |  |  |  | 256,000 | 188,000
Percentage of available horsepower of combined U.S. contract operations business from service agreements sold to the partnership |  |  |  |  |  | 8.00% | 5.00%
Number of compressor units sold |  |  |  |  |  | 204 | 139
Horsepower of compressor units sold |  |  |  |  |  | 99,000 | 75,000
Horsepower previously leased from related party and transferred to related party along with transferred contracts |  |  |  |  |  | 6,000 |
Capacity of natural gas processing plant sold (MMcf per day) |  |  |  |  |  |  | 10
Consideration received for sale of assets |  |  |  |  |  | $ 174,000,000 | $ 182,800,000
Common units issued in connection with acquisition (in shares) |  |  |  |  |  | 7,100,000 |
Cash received from the partnership as part of the consideration for the sale of assets |  |  |  |  |  |  | 77,400,000
Debt assumed by the partnership as part of the consideration for the sale of assets |  |  |  |  |  |  | 105,400,000
Sale of common units (in shares) |  |  |  |  |  |  | 4,965,000
Common units to cover over-allotments (in shares) |  |  |  |  |  |  | 465,000
Net proceeds from the sale of Partnership units |  |  |  |  | 114,530,000 |  | 114,500,000
General partner units issued (in shares) |  |  |  |  |  | 145,000 | 101,000
Approximate general partner interest in limited partnership (as a percent) | 2.00% |  |  |  |  |  |
Schedule of changes in net income and ownership interest |  |  |  |  |  |  |
Net income (loss) attributable to Exterran stockholders |  | 40,977,000 | 113,366,000 | 100,517,000 | (33,747,000) |  |
Increase in Exterran stockholders' additional paid in capital for change in ownership of Partnership units |  |  |  | 31,573,000 | 49,202,000 |  |
Change from net income (loss) attributable to Exterran stockholders and transfers to/from the noncontrolling interest |  |  |  | $ 132,090,000 | $ 15,455,000 |  |

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