Other Comprehensive Income (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Accumulated Other Comprehensive Income (Loss) [Line Items]
Reclassification adjustment for losses (gains) included in net income	$ 448	$ 38
Other Comprehensive Income (Loss), Securities, Available-for-sale, Adjustment, before Tax	(12,968)	43,474
Change in current discount rate for liability for future policy benefits	33,995	(20,480)
Income tax expense (benefit) on other comprehensive income items	(2,642)	(1,415)
Other comprehensive income (loss)	18,385	21,579
AOCI Including Portion Attributable to Noncontrolling Interest
Accumulated Other Comprehensive Income (Loss) [Line Items]
Unrealized holding gains (losses) arising during period	(13,416)	43,436
OCI, Debt Securities, Available-for-Sale, Unrealized Holding Gain (Loss), before Adjustment, Tax	1,198	(2,280)
OCI, Debt Securities, Available-for-Sale, Unrealized Holding Gain (Loss), before Adjustment, after Tax	(12,218)	41,156
Reclassification adjustment for losses (gains) included in net income	448	38
Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI for Sale of Securities, Tax	(94)	(8)
Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI for Sale of Securities, Net of Tax	354	30
Other Comprehensive Income (Loss), Securities, Available-for-sale, Adjustment, before Tax	(12,968)	43,474
OCI, Debt Securities, Available-for-Sale, Gain (Loss), after Adjustment, Tax	1,104	(2,288)
Unrealized investment gains (losses), net	(11,864)	41,186
Change in current discount rate for liability for future policy benefits	33,995	(20,480)
OCI, Liability for Future Policy Benefit, Gain (Loss), after Reclassification Adjustment, Tax	(3,746)	873
OCI, Liability for Future Policy Benefit, Gain (Loss), after Reclassification Adjustment and Tax	30,249	(19,607)
Other Comprehensive Income (Loss), before Tax, Portion Attributable to Parent	21,027	22,994
Income tax expense (benefit) on other comprehensive income items	(2,642)	(1,415)
Other comprehensive income (loss)	$ 18,385	$ 21,579