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Interest Expense (Tables) | 12 Months Ended
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Dec. 31, 2014
Interest and Debt Expense [Abstract] |
Schedule Of Interest Expense | The following table presents an analysis of interest expense:
| For the year Ended December 31,
2012 |  | 2013 |  | 2014
| (Dollars in thousands)
Interest incurred on debt | $ | 10,172 |  |  | $ | 21,589 |  |  | $ | 21,373 |
Amortization of discount on Senior Subordinated Notes | 10,742 |  |  | 11,493 |  |  | 12,298 |
Amortization of debt issuance costs | 1,712 |  |  | 2,504 |  |  | 3,339 |
Supply Chain Financing mark-up | 621 |  |  | 451 |  |  | 47 |
Total interest expense | $ | 23,247 |  |  | $ | 36,037 |  |  | $ | 37,057 |

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