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Interest Expense (Tables) | 6 Months Ended
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Jun. 30, 2018
Interest and Debt Expense [Abstract] |
Schedule Of Interest Expense | The following tables present the components of interest expense:
| For the Three Months Ended June 30, |  | For the Six Months Ended June 30,
| 2018 |  | 2017 |  | 2018 |  | 2017
| (Dollars in thousands)
Interest incurred on debt | $ | 22,554 |  |  | $ | 6,217 |  |  | $ | 35,473 |  |  | $ | 12,086 |
Related party Promissory Note interest expense | 5,090 |  |  | — |  |  | 5,090 |  |  | — |
Senior Note redemption premium | — |  |  | — |  |  | 4,782 |  |  | — |
Accretion of fair value adjustment on Senior Notes | — |  |  | 1,609 |  |  | 19,414 |  |  | 3,208 |
Accretion of original issue discount on 2018 Term Loans | 268 |  |  | — |  |  | 357 |  |  | — |
Amortization of debt issuance costs | 755 |  |  | 76 |  |  | 1,416 |  |  | 154 |
Total interest expense | $ | 28,667 |  |  | $ | 7,902 |  |  | $ | 66,532 |  |  | $ | 15,448 |

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