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Investments Equity Investments, by Category (Details) - USD ($) $ in Thousands | Dec. 31, 2020 | Dec. 31, 2019
--- | --- | ---
Mutual Fund |  |
Schedule of Equity Investments |  |
Fair Value | $ 152 | $ 65,453
Percent of Total | 2.00% | 56.10%
Public Utility, Equities |  |
Schedule of Equity Investments |  |
Fair Value | $ 0 | $ 3,663
Percent of Total | 0.00% | 3.10%
Common Stock |  |
Schedule of Equity Investments |  |
Fair Value | $ 0 | $ 44,492
Percent of Total | 0.00% | 38.20%
Nonredeemable Preferred Stock |  |
Schedule of Equity Investments |  |
Fair Value | $ 7,293 | $ 3,002
Percent of Total | 98.00% | 2.60%
Equity Securities |  |
Schedule of Equity Investments |  |
Fair Value | $ 7,445 | $ 116,610
Percent of Total | 100.00% | 100.00%

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