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Debt (Tables) | 6 Months Ended
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Jun. 30, 2018
Debt Disclosure [Abstract] |
Summary of Outstanding Debt | The following table summarizes our outstanding debt (in thousands):
| June 30, 2018 |  | December 31, 2017
5.00% Convertible Senior Notes due 2021 | $ | 115,000 |  |  | $ | 115,000 |
7.75% Senior Secured Notes due 2025 | 300,000 |  |  | 300,000 |
ABL Credit Facility | — |  |  | — |
Principal amount of long-term debt | 415,000 |  |  | 415,000 |
Less: unamortized discount and deferred financing costs | (26,961 | ) |  | (30,188 | )
Total debt, net of unamortized discount and deferred financing costs | 388,039 |  |  | 384,812 |
Less: current maturities | — |  |  | — |
Long-term debt, net of current maturities | $ | 388,039 |  |  | $ | 384,812 |

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- Definition Tabular disclosure of information pertaining to short-term and long-debt instruments or arrangements, including but not limited to identification of terms, features, collateral requirements and other information necessary to a fair presentation. + References No definition available. + Details
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