Marketable Investment Securities (Tables)
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9 Months Ended |
Sep. 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 | | | September 30, 2020 | | December 31, 2019 | | Marketable investment securities: | | | | | | Debt securities: | | | | | | Available-for-sale: | | | | | | Corporate bonds | | $ | 305,775 | | | $ | 568,442 | | | Commercial paper | | 1,330,726 | | | 321,706 | | | Other debt securities | | 270,444 | | | 13,874 | | | Total available-for-sale debt securities | | 1,906,945 | | | 904,022 | | | Fair value option - corporate bonds | | 26,355 | | | 9,128 | | | Total debt securities | | 1,933,300 | | | 913,150 | | | Equity securities | | 18,349 | | | 35,566 | | | Total marketable investment securities, including restricted amounts | | 1,951,649 | | | 948,716 | | | Less: Restricted marketable investment securities | | (845) | | | (8,093) | | | Total marketable investment securities | | $ | 1,950,804 | | | $ | 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 September 30, 2020 | | | | | | | | | | Corporate bonds | | $ | 305,628 | | | $ | 152 | | | $ | (5) | | | $ | 305,775 | | | Commercial paper | | 1,330,726 | | | — | | | — | | | 1,330,726 | | | Other debt securities | | 270,433 | | | 11 | | | — | | | 270,444 | | | Total available-for-sale debt securities | | $ | 1,906,787 | | | $ | 163 | | | $ | (5) | | | $ | 1,906,945 | | | | | | | | | | | | As of December 31, 2019 | | | | | | | | | | Corporate bonds | | $ | 567,926 | | | $ | 518 | | | $ | (2) | | | $ | 568,442 | | | Commercial paper | | 321,705 | | | 1 | | | — | | | 321,706 | | | Other debt securities | | 13,867 | | | 7 | | | — | | | 13,874 | | | 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 September 30, | | For the nine months ended September 30, | | | | 2020 | | 2019 | | 2020 | | 2019 | | Proceeds from sales | | $ | 4,997 | | | $ | — | | | $ | 14,997 | | | $ | 435,978 | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Gains (losses) on sales, net | | $ | 1 | | | $ | — | | | $ | 1 | | | $ | 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 September 30, | | For the nine months ended September 30, | | | | 2020 | | 2019 | | 2020 | | 2019 | | Proceeds from sales | | $ | 1,906 | | | $ | — | | | $ | 1,906 | | | $ | 46,717 | | | Gains (losses) on investments, net | | $ | 15,882 | | | $ | 1,936 | | | $ | 11,377 | | | $ | 6,358 | |
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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 September 30, | | For the nine months ended September 30, | | | | 2020 | | 2019 | | 2020 | | 2019 | | Proceeds from sales | | $ | 9,493 | | | $ | 22,847 | | | $ | 14,346 | | | $ | 102,775 | | | Gains (losses) on investments, net | | $ | 68 | | | $ | 8,473 | | | $ | (8,535) | | | $ | 51,750 | |
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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 | | | September 30, 2020 | | December 31, 2019 | | | Level 1 | | Level 2 | | Total | | Level 1 | | Level 2 | | Total | | Cash equivalents (including restricted) | | $ | 49,755 | | | $ | 425,893 | | | $ | 475,648 | | | $ | 31,451 | | | $ | 1,408,043 | | | $ | 1,439,494 | | | Debt securities: | | | | | | | | | | | | | | Available-for-sale: | | | | | | | | | | | | | | Corporate bonds | | $ | — | | | $ | 305,775 | | | $ | 305,775 | | | $ | — | | | $ | 568,442 | | | $ | 568,442 | | | Commercial Paper | | — | | | 1,330,726 | | | 1,330,726 | | | — | | | 321,706 | | | 321,706 | | | Other debt securities | | 268,915 | | | 1,529 | | | 270,444 | | | 8,093 | | | 5,781 | | | 13,874 | | | Total available-for-sale debt securities | | 268,915 | | | 1,638,030 | | | 1,906,945 | | | 8,093 | | | 895,929 | | | 904,022 | | | Fair value option - corporate bonds | | — | | | 26,355 | | | 26,355 | | | — | | | 9,128 | | | 9,128 | | | Total debt securities | | 268,915 | | | 1,664,385 | | | 1,933,300 | | | 8,093 | | | 905,057 | | | 913,150 | | | Equity securities | | 9,767 | | | 8,582 | | | 18,349 | | | 27,933 | | | 7,633 | | | 35,566 | | | Total marketable investment securities, including restricted amounts | | 278,682 | | | 1,672,967 | | | 1,951,649 | | | 36,026 | | | 912,690 | | | 948,716 | | | Less: Restricted marketable investment securities | | (845) | | | — | | | (845) | | | (8,093) | | | — | | | (8,093) | | | Total marketable investment securities | | $ | 277,837 | | | $ | 1,672,967 | | | $ | 1,950,804 | | | $ | 27,933 | | | $ | 912,690 | | | $ | 940,623 | |
As of September 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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