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Long-Term Debt (Tables) | 9 Months Ended
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Sep. 30, 2017
Debt Disclosure [Abstract] |
Schedule of Long-Term Debt | The Company’s long-term debt consists of the following:
| September 30, 2017 |  | December 31, 2016
| (In thousands)
Senior secured revolving line of credit | $ | 395,000 |  |  | $ | 363,000 |
OMP revolving line of credit | — |  |  | — |
Senior unsecured notes |  |  |
7.25% senior unsecured notes due February 1, 2019 | 54,275 |  |  | 54,275 |
6.5% senior unsecured notes due November 1, 2021 | 395,501 |  |  | 395,501 |
6.875% senior unsecured notes due March 15, 2022 | 937,080 |  |  | 937,080 |
6.875% senior unsecured notes due January 15, 2023 | 366,094 |  |  | 366,094 |
2.625% senior unsecured convertible notes due September 15, 2023 | 300,000 |  |  | 300,000 |
Total principal of senior unsecured notes | 2,052,950 |  |  | 2,052,950 |
Less: unamortized deferred financing costs on senior unsecured notes | (24,295 | ) |  | (28,268 | )
Less: unamortized debt discount on senior unsecured convertible notes | (83,042 | ) |  | (90,468 | )
Total long-term debt | $ | 2,340,613 |  |  | $ | 2,297,214 |

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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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