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Long-Term Debt - The Partnership Asset-Based Revolving Credit Facility (Details) |  | 3 Months Ended | 9 Months Ended |
--- | --- | --- | --- | ---
Mar. 30, 2017 USD ($) | Sep. 30, 2017 USD ($) | Sep. 30, 2016 USD ($) | Sep. 30, 2017 USD ($) | Sep. 30, 2016 USD ($) | Dec. 31, 2016 USD ($)
Line of Credit Facility |  |  |  |  |  |
Repayments of long-term debt |  |  |  | $ 1,118,000,000 | $ 496,000,000 |
Amortized deferred financing cost | $ 600,000 |  |  |  |  |
Loss on extinguishment of debt | 300,000 |  |  |  |  |
Long-term debt |  | $ 1,392,947,000 |  | 1,392,947,000 |  | $ 1,441,724,000
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 |  | 468,500,000 |  | $ 468,500,000 |  |
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 |  | 213,600,000 |  | $ 213,600,000 |  |
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 |  |  |  |  |
Interest rate (as a percent) | 6.00% |  |  |  |  |
Debt issuance cost | $ 14,900,000 |  |  |  |  |
Long term debt |  | 631,500,000 |  | 631,500,000 |  |
Outstanding letter of credit |  | 0 |  | 0 |  |
Long-term debt |  | 631,500,000 |  | 631,500,000 |  | 0
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 |  |  |  |  |  |
Long-term debt |  | 0 |  | 0 |  | $ 509,500,000
Commitment fee amount |  | $ 600,000 | $ 300,000 | $ 1,500,000 | $ 1,000,000 |
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 |  |  |  | 3.24% |  |
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% |  |

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