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Transactions Related to the Partnership (Details) hp in Thousands |  | 1 Months Ended | 12 Months Ended
--- | --- | --- | ---
Apr. 10, 2014 shares | May 31, 2015 USD ($) | Apr. 30, 2015 USD ($) hp compressor_unit customer shares | Apr. 30, 2014 USD ($) shares | Mar. 31, 2013 USD ($) hp compressor_unit customer shares | Dec. 31, 2015 USD ($) shares | Dec. 31, 2014 USD ($) | Dec. 31, 2013 USD ($)
Transactions related to the partnership |  |  |  |  |  |  |  |
Net proceeds from the sale of Partnership units | $ |  |  |  |  |  | $ 1,164,000 | $ 169,471,000 | $ 0
Exterran Partners, L.P. | Subsidiary |  |  |  |  |  |  |  |
Transactions related to the partnership |  |  |  |  |  |  |  |
Number of partnership customers with service agreements (customers) | customer |  |  | 60 |  | 50 |  |  |
Number of compressor units used to provide compression services (compressor units) | compressor_unit |  |  | 238 |  | 363 |  |  |
Horsepower of compressor units used to provide compression services (horse power) | hp |  |  | 148 |  | 256 |  |  |
Percentage of available horsepower of combined U.S. contract operations business from service agreements sold to the partnership |  |  | 3.00% |  | 8.00% |  |  |
Number of compressor units sold (compressor units) | compressor_unit |  |  | 179 |  | 204 |  |  |
Horsepower of compressor units sold (horsepower) | hp |  |  | 66 |  | 99 |  |  |
Consideration received from sales of assets | $ |  |  | $ 102,300,000 |  | $ 174,000,000 |  |  |
Horsepower previously leased from related party and transferred to related party along with transferred contracts (horsepower) | hp |  |  |  |  | 6 |  |  |
Exterran Partners, L.P. | Common units |  |  |  |  |  |  |  |
Transactions related to the partnership |  |  |  |  |  |  |  |
Sale of common units (in units) | shares | 6,200,000 |  |  | 6,210,000 |  |  |  |
Net proceeds from the sale of Partnership units | $ |  |  |  | $ 169,500,000 |  |  |  |
Units issued (in units) | shares |  |  | 4,000,000 |  | 7,100,000 |  |  |
Exterran Partners, L.P. | Common units | Over-Allotment Option |  |  |  |  |  |  |  |
Transactions related to the partnership |  |  |  |  |  |  |  |
Sale of common units (in units) | shares |  |  |  | 810,000 |  |  |  |
Exterran Partners, L.P. | General partner units |  |  |  |  |  |  |  |
Transactions related to the partnership |  |  |  |  |  |  |  |
Units issued (in units) | shares |  |  | 80,000 |  | 145,000 |  |  |
General partner units issued and sold (in units) | shares | 126,000 |  |  | 126,000 |  |  |  |
Approximate general partner interest in limited partnership (as a percent) |  |  |  | 2.00% |  |  |  |
Proceeds from issuance of general partner units | $ |  |  |  | $ 3,600,000 |  |  |  |
Exterran Partners, L.P. | Atm Agreements | Limited Partner |  |  |  |  |  |  |  |
Transactions related to the partnership |  |  |  |  |  |  |  |
Maximum aggregate offering price | $ |  | $ 100,000,000.0 |  |  |  |  |  |
Sale of common units (in units) | shares |  |  |  |  |  | 49,774 |  |
Net proceeds from the sale of Partnership units | $ |  |  |  |  |  | $ 1,200,000 |  |

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