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Investments Fair Value Inputs, Assets, Quantitative Information (Details) - USD ($) $ in Thousands | Dec. 31, 2023 | Dec. 31, 2022
--- | --- | ---
Limited Partner |  |
Equity Securities without Readily Determinable Fair Value |  |
Unrealized gain | $ 379 | $ 604
Fair value | 2,483 | 3,550
Unrealized loss | 0 | 0
Debt Securities, Available-for-sale, Amortized Cost | 2,104 | 2,946
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis |  |
Debt Securities, Available-for-sale, Amortized Cost | 2,104 | 2,946
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Gain, before Tax | 379 | 604
Unrealized loss | 0 | 0
Fair value | 2,483 | 3,550
Short-term Investments |  |
Equity Securities without Readily Determinable Fair Value |  |
Unrealized gain | 1 | 0
Unrealized loss | 11 | 1
Fixed maturities, available-for-sale (amortized cost of $200,951 and $237,735, respectively) | 14,004 | 125
Debt Securities, Available-for-sale, Amortized Cost | 14,014 | 126
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis |  |
Debt Securities, Available-for-sale, Amortized Cost | 14,014 | 126
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Gain, before Tax | 1 | 0
Unrealized loss | 11 | 1
Fixed maturities, available-for-sale (amortized cost of $200,951 and $237,735, respectively) | 14,004 | 125
Other Long-term Investments |  |
Equity Securities without Readily Determinable Fair Value |  |
Fixed maturities, available-for-sale (amortized cost of $200,951 and $237,735, respectively) | 14,004 | 125
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis |  |
Fixed maturities, available-for-sale (amortized cost of $200,951 and $237,735, respectively) | 14,004 | 125
us-gaap_OtherLongTermInvestmentsMember |  |
Equity Securities without Readily Determinable Fair Value |  |
Unrealized gain | 380 | 604
Unrealized loss | 11 | 1
Debt Securities, Available-for-sale, Amortized Cost | 16,118 | 3,072
Other Investments | 16,487 | 3,675
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis |  |
Debt Securities, Available-for-sale, Amortized Cost | 16,118 | 3,072
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Gain, before Tax | 380 | 604
Unrealized loss | 11 | 1
Other Investments | $ 16,487 | $ 3,675

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