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Investments Fair Value Inputs, Assets, Quantitative Information (Details) - USD ($) $ in Thousands | Dec. 31, 2021 | Dec. 31, 2020
--- | --- | ---
Equity Securities without Readily Determinable Fair Value |  |
Fixed maturities, available-for-sale (amortized cost of $672,139 and $926,714, respectively) | $ 663,602 | $ 940,011
Limited Partner |  |
Equity Securities without Readily Determinable Fair Value |  |
Unrealized gain | 1,401 | 225
Fair value | 17,625 | 9,593
Unrealized loss | 526 | 164
Debt Securities, Available-for-sale, Amortized Cost | 16,750 | 9,532
Certificates of Deposit |  |
Equity Securities without Readily Determinable Fair Value |  |
Unrealized gain | 0 | 0
Unrealized loss | 0 | 0
Certificates of Deposit, at Carrying Value | 300 | 300
Short-term Investments |  |
Equity Securities without Readily Determinable Fair Value |  |
Unrealized gain | 0 | 0
Unrealized loss | 0 | 1
Fixed maturities, available-for-sale (amortized cost of $672,139 and $926,714, respectively) | 81 | 37,702
Debt Securities, Available-for-sale, Amortized Cost | 81 | 37,703
Other Long-term Investments |  |
Equity Securities without Readily Determinable Fair Value |  |
Unrealized gain | 1,401 | 225
Unrealized loss | 526 | 165
Debt Securities, Available-for-sale, Amortized Cost | 17,131 | 47,535
Other Investments | $ 18,006 | $ 47,595

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