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Debt Obligations (Details 5) - Senior Unsecured Notes - USD ($) $ in Millions | 12 Months Ended |
--- | --- | ---
Dec. 31, 2014 | Jun. 30, 2015
Debt Obligations |  |
Face amount | $ 90.0 |
Interest rate (as a percent) | 7.375% |
Net proceeds | $ 85.4 |
Weighted average note rate (as a percent) | 8.06% | 8.11%
Over-Allotment Option |  |
Debt Obligations |  |
Face amount | $ 7.8 |
Net proceeds | $ 7.4 |

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