Other Comprehensive Income (Details) - USD ($) $ in Thousands	3 Months Ended						9 Months Ended
	Sep. 30, 2022	Jun. 30, 2022	Mar. 31, 2022	Sep. 30, 2021	Jun. 30, 2021	Mar. 31, 2021	Sep. 30, 2022	Sep. 30, 2021
Equity [Abstract]
Unrealized holding gains (losses) arising during period	$ (88,382)			$ (9,561)			$ (340,678)	$ (35,749)
OCI, Debt Securities, Available-for-Sale, Unrealized Holding Gain (Loss), before Adjustment, Tax	4,808			781			18,200	2,736
OCI, Debt Securities, Available-for-Sale, Unrealized Holding Gain (Loss), before Adjustment, after Tax	(83,574)			(8,780)			(322,478)	(33,013)
Reclassification adjustment for losses (gains) included in net income (loss)	43			(102)			78	(91)
Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI for Sale of Securities, Tax	(8)			22			(15)	19
Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI for Sale of Securities, Net of Tax	35			(80)			63	(72)
Other Comprehensive Income (Loss), Effects of Deferred Policy Acquisition Cost, before Tax	725			7,975			1,879	11,681
Other Comprehensive Income (Loss), Effects of Deferred Policy Acquisition Costs , Tax	(153)			(528)			(395)	(3,068)
Other Comprehensive Income (Loss), Effects of Deferred Policy Acquisition Costs, Net of Tax	572			7,447			1,484	8,613
Other Comprehensive Income (Loss), Effect of Cost of Insurance Acquired before Tax	251			7			694	284
Other Comprehensive Income (Loss), Effects of Cost of Insurance Acquired, Tax	(53)			(1)			(146)	(59)
Other Comprehensive Income (Loss), Effects of Cost of Insurance Acquired, Net of Tax	198			6			548	225
Other Comprehensive Income (Loss), Effect of Future Policy Benefit Reserves before Tax	(2,307)			15			(5,884)	(1,922)
Other Comprehensive Income (Loss), Effects of Future Policy Benefit Reserves, Tax	485			(3)			1,236	404
Other Comprehensive Income (Loss), Effects of Future Policy Benefit Reserves, Net of Tax	(1,822)			12			(4,648)	(1,518)
Other Comprehensive Income (Loss), Securities, Available-for-sale, Adjustment, before Tax	(89,670)			(1,666)			(343,911)	(25,797)
Other Comprehensive Income (Loss), Tax, Portion Attributable to Parent	5,079			271			18,880	32
Unrealized investment gains (losses), net	$ (84,591)	$ (116,223)	$ (124,217)	$ (1,395)	$ 32,148	$ (56,518)	$ (325,031)	$ (25,765)