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Long-Term Debt - The Partnership Revovling Credit Facility and Term Loans (Details 3) | 1 Months Ended | 3 Months Ended | 6 Months Ended | 12 Months Ended |  |
--- | --- | --- | --- | --- | --- | ---
Mar. 31, 2013 USD ($) | Nov. 30, 2010 USD ($) | Mar. 31, 2016 | Dec. 31, 2015 USD ($) | Dec. 31, 2015 USD ($) | Dec. 31, 2014 USD ($) | Dec. 31, 2013 USD ($) | Mar. 31, 2012 USD ($) | Mar. 31, 2011 USD ($)
Long-Term Debt |  |  |  |  |  |  |  |  |
Debt extinguishment costs |  |  |  |  | $ 9,201,000 | $ 0 | $ 0 |  |
Partnership's revolving credit facility and term loan facility | Exterran Partners, L.P. |  |  |  |  |  |  |  |  |
Long-Term Debt |  |  |  |  |  |  |  |  |
Expiration period of credit facility |  | 5 years |  |  |  |  |  |  |
Revolving credit facility borrowing capacity |  | $ 550,000,000.0 |  |  |  |  |  |  |
Debt extinguishment costs | $ 700,000 |  |  |  |  |  |  |  |
Increase in borrowing capacity |  |  |  |  | 250,000,000.00 | 900,000,000.0 |  |  |
Transaction costs |  |  |  |  | $ 1,300,000 | $ 4,300,000 |  |  |
Weighted average annual interest rate (as a percent) |  |  |  | 2.80% | 2.80% | 2.70% |  |  |
Maximum additional commitment amount |  |  |  | $ 50,000,000 | $ 50,000,000 |  |  |  |
Minimum EBITDA to total interest expense ratio |  |  |  |  | 2.75 |  |  |  |
Maximum total debt to EBITDA ratio |  |  |  |  | 5.25 |  |  |  |
Maximum revised total debt to EBITDA ratio |  |  |  |  | 5.5 |  |  |  |
Maximum senior secured debt to EBITDA ratio |  |  |  |  | 4.0 |  |  |  |
Maximum total debt to EBITDA ratio required in period |  |  |  | 5.5 |  |  |  |  |
Partnership's revolving credit facility and term loan facility | Exterran Partners, L.P. | Forecast |  |  |  |  |  |  |  |  |
Long-Term Debt |  |  |  |  |  |  |  |  |
Maximum total debt to EBITDA ratio required in period |  |  | 5.25 |  |  |  |  |  |
Partnership's revolving credit facility and term loan facility | Exterran Partners, L.P. | LIBOR |  |  |  |  |  |  |  |  |
Long-Term Debt |  |  |  |  |  |  |  |  |
Debt instrument, basis spread on variable rate (as a percent) |  |  |  |  | 2.50% |  |  |  |
Partnership's revolving credit facility and term loan facility | Exterran Partners, L.P. | LIBOR | Minimum |  |  |  |  |  |  |  |  |
Long-Term Debt |  |  |  |  |  |  |  |  |
Debt instrument, basis spread on variable rate (as a percent) |  |  |  |  | 2.00% |  |  |  |
Partnership's revolving credit facility and term loan facility | Exterran Partners, L.P. | LIBOR | Maximum |  |  |  |  |  |  |  |  |
Long-Term Debt |  |  |  |  |  |  |  |  |
Debt instrument, basis spread on variable rate (as a percent) |  |  |  |  | 3.00% |  |  |  |
Partnership's revolving credit facility and term loan facility | Exterran Partners, L.P. | Base rate loans | Minimum |  |  |  |  |  |  |  |  |
Long-Term Debt |  |  |  |  |  |  |  |  |
Debt instrument, basis spread on variable rate (as a percent) |  |  |  |  | 1.00% |  |  |  |
Partnership's revolving credit facility and term loan facility | Exterran Partners, L.P. | Base rate loans | Maximum |  |  |  |  |  |  |  |  |
Long-Term Debt |  |  |  |  |  |  |  |  |
Debt instrument, basis spread on variable rate (as a percent) |  |  |  |  | 2.00% |  |  |  |
Partnership's revolving credit facility and term loan facility | Exterran Partners, L.P. | Federal Funds |  |  |  |  |  |  |  |  |
Long-Term Debt |  |  |  |  |  |  |  |  |
Debt instrument, basis spread on variable rate (as a percent) |  |  |  |  | 0.50% |  |  |  |
Partnership's revolving credit facility and term loan facility | Exterran Partners, L.P. | one-month LIBOR |  |  |  |  |  |  |  |  |
Long-Term Debt |  |  |  |  |  |  |  |  |
Debt instrument, basis spread on variable rate (as a percent) |  |  |  |  | 1.00% |  |  |  |
Partnership's revolving credit facility | Exterran Partners, L.P. |  |  |  |  |  |  |  |  |
Long-Term Debt |  |  |  |  |  |  |  |  |
Revolving credit facility borrowing capacity | $ 650,000,000.0 | 400,000,000.0 |  |  |  |  |  | $ 750,000,000.0 | $ 550,000,000.0
Undrawn capacity under revolving credit facility |  |  |  | $ 319,500,000 | $ 319,500,000 |  |  |  |
Partnership's term loan facility | Exterran Partners, L.P. |  |  |  |  |  |  |  |  |
Long-Term Debt |  |  |  |  |  |  |  |  |
Revolving credit facility borrowing capacity |  | $ 150,000,000.0 |  |  |  |  |  |  |

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