Schedule of Long-Term Debt |
Long-term debt includes the following: | | | | | | | | | | | | | | September 30, 2018 | | September 30, 2017 | | December 31, 2017 | | (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 2018 and March 2023 | 250,000 |
| | 500,000 |
| | 500,000 |
| 2014 Senior Notes due May 2019 | — |
| | 500,000 |
| | 500,000 |
| 2016 Senior Notes due August 2021 | 350,000 |
| | 350,000 |
| | 350,000 |
| 2017/2018 Senior Notes due December 2025 | 1,500,000 |
| | — |
| | 1,000,000 |
| Debt issuance costs and debt discount | (50,078 | ) | | (13,596 | ) | | (26,881 | ) |
| 2,849,922 |
| | 2,136,404 |
| | 3,123,119 |
| Less: current portion | — |
| | (250,000 | ) | | (250,000 | ) | Total long-term debt | $ | 2,849,922 |
| | $ | 1,886,404 |
| | $ | 2,873,119 |
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