Investments - Schedule of Other Investments (Details) - USD ($) $ in Thousands	Sep. 30, 2022	Dec. 31, 2021
Other Investments
Fair Value	$ 492,251	$ 663,602
Other Long-term Investments
Other Investments
Fair Value	454	381
Other Investments	16,609
Fixed maturities, cost	16,780	$ 17,131
Debt Securities, Available-for-Sale, Accumulated Gross Unrealized Gain, before Tax	1,496
Debt Securities, Available-for-Sale, Accumulated Gross Unrealized Loss, before Tax	1,667
Short-term Investments
Other Investments
Fair Value	154
Fixed maturities, cost	155
Debt Securities, Available-for-Sale, Accumulated Gross Unrealized Gain, before Tax	0
Debt Securities, Available-for-Sale, Accumulated Gross Unrealized Loss, before Tax	1
Limited Partnership
Other Investments
Fixed maturities, cost	16,325
Debt Securities, Available-for-Sale, Accumulated Gross Unrealized Gain, before Tax	1,496
Debt Securities, Available-for-Sale, Accumulated Gross Unrealized Loss, before Tax	1,666
Fair Value of Limited Partnership Interest	16,155
Certificates of Deposit
Other Investments
Debt Securities, Available-for-Sale, Accumulated Gross Unrealized Gain, before Tax	0
Debt Securities, Available-for-Sale, Accumulated Gross Unrealized Loss, before Tax	0
Fair value - certificates of deposit	$ 300

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