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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
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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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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 320
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-Section 50
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