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Senior Notes | 12 Months Ended
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Dec. 31, 2017
Debt Disclosure [Abstract] |
Senior Notes | NOTE 12 – Senior Notes The following table summarizes our senior notes as of December 31, 2017 and 2016 (in thousands):
|  | December 31, |
|  | 2017 |  |  | 2016 |
4.250% senior notes, due 2024 (1) |  | $ | 500,000 |  |  | $ | 500,000 |
3.50% senior notes, due 2020 (2) |  |  | 300,000 |  |  |  | 300,000 |
5.20% senior notes, due 2047 (3) |  |  | 225,000 |  |  |  | — |
|  |  | 1,025,000 |  |  |  | 800,000 |
Debt issuance costs, net |  |  | (10,060 | ) |  |  | (4,109 | )
|  | $ | 1,014,940 |  |  | $ | 795,891 |
(1) | In July 2014, we sold in a registered underwritten public offering, $300.0 million in aggregate principal amount of 4.250% senior notes due July 2024. Interest on these senior notes is payable semi-annually in arrears. We may redeem the notes in whole or in part, at our option, at a redemption price equal to 100% of their principal amount, plus a “make-whole” premium and accrued and unpaid interest, if any, to the date of redemption. In July 2016, we issued an additional $200.0 million in aggregate principal amount of 4.25% senior notes due 2024.
(2) | In December 2015, we sold in a registered underwritten public offering, $300.0 million in aggregate principal amount of 3.50% senior notes due December 2020. Interest on these senior notes is payable semi-annually in arrears. We may redeem the notes in whole or in part, at our option, at a redemption price equal to 100% of their principal amount, plus a “make-whole” premium and accrued and unpaid interest, if any, to the date of redemption.
(3) | On October 4, 2017, we completed the pricing of a registered underwritten public offering of $200.0 million in aggregate principal amount of 5.20% senior notes due October 2047. Interest on the senior notes is payable quarterly in arrears on January 15, April 15, July 15, and October 15. On or after October 15, 2022, we may redeem some or all of the senior notes at any time at a redemption price equal to 100% of the principal amount of the notes being redeemed plus accrued interest thereon to the redemption date. On October 27, 2017, we completed the sale of an additional $25.0 million aggregate principal amount of Notes pursuant to the over-allotment option.
Our senior notes mature as follows, based upon contractual terms (in thousands):
2018 |  | $ | — |
2019 |  |  | — |
2020 |  |  | 300,000 |
2021 |  |  | — |
2022 |  |  | — |
Thereafter |  |  | 725,000 |
|  | $ | 1,025,000 |

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- Definition The entire disclosure for long-term debt. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -URI http://asc.fasb.org/topic&trid=2208564 + Details
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