Marketable Investment Securities (Tables)
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6 Months Ended |
Jun. 30, 2020 |
| Investments, Debt and Equity Securities [Abstract] |
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| Schedule of marketable investment securities |
The following table presents our Marketable investment securities: | | | | | | | | | | | | | | | | | As of | | | | | June 30, 2020 | | December 31, 2019 | | Marketable investment securities: | | | | | | Debt securities: | | | | | | Available-for-sale: | | | | | | Corporate bonds | | $ | 381,201 | | | $ | 568,442 | | | Other debt securities | | 89,924 | | | 335,580 | | | Total available-for-sale debt securities | | 471,125 | | | 904,022 | | | Fair value option - corporate bonds | | 12,038 | | | 9,128 | | | Total debt securities | | 483,163 | | | 913,150 | | | Equity securities | | 27,548 | | | 35,566 | | | Total marketable investment securities, including restricted amounts | | 510,711 | | | 948,716 | | | Less: Restricted marketable investment securities | | (731) | | | (8,093) | | | Total marketable investment securities | | $ | 509,980 | | | $ | 940,623 | |
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| Schedule of unrealized gains (losses) on available-for-sale securities |
The following table presents the components of our available-for-sale debt securities: | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Amortized | | Unrealized | | | | Estimated | | | Cost | | Gains | | Losses | | Fair Value | | As of June 30, 2020 | | | | | | | | | | Corporate bonds | | $ | 381,071 | | | $ | 132 | | | $ | (2) | | | $ | 381,201 | | | Other debt securities | | 89,923 | | | 1 | | | — | | | 89,924 | | | Total available-for-sale debt securities | | $ | 470,994 | | | $ | 133 | | | $ | (2) | | | $ | 471,125 | | | | | | | | | | | | As of December 31, 2019 | | | | | | | | | | Corporate bonds | | $ | 567,926 | | | $ | 518 | | | $ | (2) | | | $ | 568,442 | | | Other debt securities | | 335,572 | | | 8 | | | — | | | 335,580 | | | Total available-for-sale debt securities | | $ | 903,498 | | | $ | 526 | | | $ | (2) | | | $ | 904,022 | |
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| Schedule of activity on available-for-sale debt securities |
The following table presents the activity on our available-for-sale debt securities: | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | For the three months ended June 30, | | | | For the six months ended June 30, | | | | | | 2020 | | 2019 | | 2020 | | 2019 | | Proceeds from sales | | $ | — | | | $ | — | | | $ | 10,000 | | | $ | 435,978 | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Gains (losses) on sales, net | | $ | — | | | $ | — | | | $ | — | | | $ | 549 | |
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| Schedule of activity on fair value option bonds |
The following table presents the activity on our fair value option corporate bonds: | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | For the three months ended June 30, | | | | For the six months ended June 30, | | | | | | 2020 | | 2019 | | 2020 | | 2019 | | Proceeds from sales | | $ | — | | | $ | 46,717 | | | $ | — | | | $ | 46,717 | | | Gains (losses) on investments, net | | $ | (298) | | | $ | 224 | | | $ | (4,506) | | | $ | 4,422 | |
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| Schedule of activity in equity securities |
The following table presents the activity of our equity securities: | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | For the three months ended June 30, | | | | For the six months ended June 30, | | | | | | 2020 | | 2019 | | 2020 | | 2019 | | Proceeds from sales | | $ | 4,719 | | | $ | 29,051 | | | $ | 4,853 | | | $ | 79,928 | | | Gains (losses) on investments, net | | $ | 2,512 | | | $ | 13,028 | | | $ | (8,603) | | | $ | 43,277 | |
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| Schedule of fair value measurements |
The following table presents our marketable investment securities categorized by the fair value hierarchy, certain of which have historically experienced volatility: | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | As of | | | | | | | | | | | | | June 30, 2020 | | | | | | December 31, 2019 | | | | | | | Level 1 | | Level 2 | | Total | | Level 1 | | Level 2 | | Total | | Debt securities: | | | | | | | | | | | | | | Available-for-sale: | | | | | | | | | | | | | | Corporate bonds | | $ | — | | | $ | 381,201 | | | $ | 381,201 | | | $ | — | | | $ | 568,442 | | | $ | 568,442 | | | Other debt securities | | 731 | | | 89,193 | | | 89,924 | | | 8,093 | | | 327,487 | | | 335,580 | | | Total available-for-sale debt securities | | 731 | | | 470,394 | | | 471,125 | | | 8,093 | | | 895,929 | | | 904,022 | | | Fair value option - corporate bonds | | — | | | 12,038 | | | 12,038 | | | — | | | 9,128 | | | 9,128 | | | Total debt securities | | 731 | | | 482,432 | | | 483,163 | | | 8,093 | | | 905,057 | | | 913,150 | | | Equity securities | | 19,872 | | | 7,676 | | | 27,548 | | | 27,933 | | | 7,633 | | | 35,566 | | | Total marketable investment securities, including restricted amounts | | 20,603 | | | 490,108 | | | 510,711 | | | 36,026 | | | 912,690 | | | 948,716 | | | Less: Restricted marketable investment securities | | (731) | | | — | | | (731) | | | (8,093) | | | — | | | (8,093) | | | Total marketable investment securities | | $ | 19,872 | | | $ | 490,108 | | | $ | 509,980 | | | $ | 27,933 | | | $ | 912,690 | | | $ | 940,623 | |
As of June 30, 2020 and December 31, 2019, we did not have any investments that were categorized within Level 3 of the fair value hierarchy.
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