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Long-Term Debt | 6 Months Ended
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Jun. 30, 2019
Debt Disclosure [Abstract] |
Long-Term Debt | Long-Term Debt Long-term debt includes the following:
| June 30, 2019 |  | June 30, 2018 |  | December 31, 2018
| (In thousands)
2010 Senior Notes due October 2020 and October 2040 | $ | 500,000 |  |  | $ | 500,000 |  |  | $ | 500,000 |
2011 Senior Notes due November 2041 | 300,000 |  |  | 300,000 |  |  | 300,000 |
2013 Senior Notes due March 2023 | 250,000 |  |  | 250,000 |  |  | 250,000 |
2016 Senior Notes due August 2021 | 350,000 |  |  | 350,000 |  |  | 350,000 |
2017/2018 Senior Notes due December 2025 | 1,500,000 |  |  | 1,500,000 |  |  | 1,500,000 |
Debt issuance costs and debt discount | (44,806 | ) |  | (51,823 | ) |  | (48,277 | )
| 2,855,194 |  |  | 2,848,177 |  |  | 2,851,723 |
Less: current portion | — |  |  | — |  |  | — |
| $ | 2,855,194 |  |  | $ | 2,848,177 |  |  | $ | 2,851,723 |

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- Definition The entire disclosure for long-term debt. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -URI http://asc.fasb.org/topic&trid=2208564 + Details
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