Other Comprehensive Income (Loss) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Accumulated Other Comprehensive Income (Loss) [Line Items]
Reclassification adjustment for losses (gains) included in net income (loss)	$ (756)	$ (104)	$ 243
Unrealized gains (losses) on fixed maturity securities, net	51,650	(328,569)	(41,366)
Other Comprehensive Income (Loss), Securities, Available-for-sale, Tax	2,424	21,770
Change in current discount rate for liability for future policy benefits	(34,790)	337,776	92,396
Income tax expense (benefit) on other comprehensive income items	(2,029)	7,262	1,449
Other comprehensive income (loss)	18,889	1,945	49,581
AOCI Including Portion Attributable to Noncontrolling Interest
Accumulated Other Comprehensive Income (Loss) [Line Items]
Other Comprehensive Income (Loss), Securities, Available-for-Sale, Unrealized Holding Gain (Loss) Arising During Period, before Tax	50,894	(328,673)	(41,123)
Unrealized holding gains (losses) arising during the period, tax effect	(971)	(17,555)	(3,084)
Unrealized holding gains (losses) arising during the period, net of tax	51,865	(311,118)	(38,039)
Reclassification adjustment for losses (gains) included in net income (loss)	(756)	(104)	243
Reclassification adjustment for (gains) losses included in net income, tax effect	(159)	(22)	51
Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI for Sale of Securities, Net of Tax	(597)	(82)	192
Unrealized gains (losses) on fixed maturity securities, net	51,650	(328,569)	(41,366)
Other Comprehensive Income (Loss), Securities, Available-for-sale, Tax	(812)	(17,533)	(3,135)
Other comprehensive income (loss)	52,462	(311,036)	(38,231)
Change in current discount rate for liability for future policy benefits	(34,790)	337,776	92,396
OCI, Liability for Future Policy Benefit, Gain (Loss), after Reclassification Adjustment, Tax	(1,217)	24,795	4,584
OCI, Liability for Future Policy Benefit, Gain (Loss), after Reclassification Adjustment and Tax	(33,573)	312,981	87,812
Other Comprehensive Income (Loss), before Tax, Portion Attributable to Parent	16,860	9,207	51,030
Income tax expense (benefit) on other comprehensive income items	(2,029)	7,262	1,449
Other comprehensive income (loss)	$ 18,889	$ 1,945	$ 49,581