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Long-Term Debt (Details 4) - USD ($)
$ in Thousands
1 Months Ended 6 Months Ended
Apr. 30, 2014
Jun. 30, 2015
Jun. 30, 2014
Dec. 31, 2014
Long-Term Debt        
Proceeds from borrowings of long-term debt   $ 765,500 $ 1,389,799  
Partnership's 6% senior notes due 2022 | Exterran Partners, L.P.        
Long-Term Debt        
Principle amount of senior notes $ 350,000      
Interest rate (as a percent) 6.00% 6.00%   6.00%
Proceeds from borrowings of long-term debt $ 337,400      
Transaction costs 6,900      
Amount of unamortized discount of notes $ 5,700 $ 5,000   $ 5,200
Effective interest rate (as a percent) 6.25%