v3.20.2

Marketable Investment Securities - Schedule of Marketable Investment Securities (Details) - USD ($) $ in Thousands | Sep. 30, 2020 | Dec. 31, 2019
--- | --- | ---
Debt securities: |  |
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
Corporate bonds |  |
Debt securities: |  |
Debt securities | 305,775 | 568,442
Commercial paper |  |
Debt securities: |  |
Debt securities | 1,330,726 | 321,706
Other debt securities |  |
Debt securities: |  |
Debt securities | $ 270,444 | $ 13,874

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