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Long-Term Debt - The Partnership Revolving Credit Facility and Term Loan (Details)
3 Months Ended 6 Months Ended
Mar. 30, 2017
USD ($)
Jun. 30, 2017
USD ($)
Jun. 30, 2016
USD ($)
Jun. 30, 2017
USD ($)
Jun. 30, 2016
USD ($)
Line of Credit Facility          
Repayments of long-term debt       $ 970,000,000 $ 275,000,000
Amortized deferred financing cost $ 600,000        
Loss on extinguishment of debt 300,000        
Change in borrowing capacity 250,000,000        
Revolving Credit Facility          
Line of Credit Facility          
Repayments of long-term debt 648,400,000        
Change in borrowing capacity $ 25,000,000        
Revolving Credit Facility | Exterran Partners, L.P.          
Line of Credit Facility          
Maximum consolidated cash balance   $ 50,000,000.0   50,000,000.0  
Undrawn capacity under revolving credit facility   408,000,000   $ 408,000,000  
Revolving Credit Facility | Minimum          
Line of Credit Facility          
Line of credit facility, commitment fee (percentage)       0.375%  
Revolving Credit Facility | Maximum          
Line of Credit Facility          
Line of credit facility, commitment fee (percentage)       0.50%  
Revolving Credit Facility | Maximum | Exterran Partners, L.P.          
Line of Credit Facility          
Undrawn capacity under revolving credit facility   217,400,000   $ 217,400,000  
Revolving Credit Facility | Partnership’s revolving credit facility due March 2022          
Line of Credit Facility          
Debt instrument, expiration period 5 years        
Revolving credit facility borrowing capacity $ 1,100,000,000.0        
Debt issuance cost 15,000,000        
Long term debt   692,000,000   692,000,000  
Revolving Credit Facility | Revolving Credit Facility Due May2018          
Line of Credit Facility          
Repayments of long-term debt 825,000,000        
Revolving Credit Facility | Term Loan Facility Due May2018          
Line of Credit Facility          
Repayments of long-term debt 150,000,000        
Revolving Credit Facility | Partnership’s revolving credit facility due May 2018          
Line of Credit Facility          
Commitment fee amount   $ 500,000 $ 300,000 $ 900,000 $ 700,000
Swing Line          
Line of Credit Facility          
Change in borrowing capacity $ 50,000,000        
Line of Credit | Base Rate          
Line of Credit Facility          
Debt instrument, variable rate       3.21%  
Line of Credit | Federal Funds Rate          
Line of Credit Facility          
Debt instrument, interest margin added to variable rate       0.005  
Line of Credit | One-month LIBOR          
Line of Credit Facility          
Debt instrument, interest margin added to variable rate       0.01  
Line of Credit | Minimum | LIBOR          
Line of Credit Facility          
Debt instrument, variable rate       2.00%  
Line of Credit | Minimum | Base Rate          
Line of Credit Facility          
Debt instrument, variable rate       1.00%  
Line of Credit | Maximum | LIBOR          
Line of Credit Facility          
Debt instrument, variable rate       3.25%  
Line of Credit | Maximum | Base Rate          
Line of Credit Facility          
Debt instrument, variable rate       2.25%