v3.20.2

Marketable Investment Securities - Schedule of Marketable Investment Securities (Details) - USD ($) $ in Thousands | Jun. 30, 2020 | Dec. 31, 2019
--- | --- | ---
Debt securities: |  |
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
Corporate bonds |  |
Debt securities: |  |
Debt securities | 381,201 | 568,442
Other debt securities |  |
Debt securities: |  |
Debt securities | $ 89,924 | $ 335,580

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