Deferred Acquisition Costs - Schedule of Analysis of Deferred Acquisition Costs (Details) - USD ($) $ in Thousands	3 Months Ended			6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Mar. 31, 2022	Jun. 30, 2023	Jun. 30, 2022
Movement Analysis of Deferred Policy Acquisition Costs
Beginning Balance				$ 5,535,697
Amortization expense	$ (94,080)	$ (86,185)		(186,402)	$ (170,681)
Ending Balance	5,778,732	5,306,420		5,778,732	5,306,420
Life
Movement Analysis of Deferred Policy Acquisition Costs
Beginning Balance	4,952,262	4,528,420	$ 4,412,015	4,844,291	4,412,015
Capitalizations	188,630		186,914	378,977	373,510
Amortization expense	(81,173)		(73,681)	(160,762)	(145,610)
Foreign exchange adjustment	5,546		(6,978)	2,759	(5,240)
Experience adjustment	0		0	0	0
Ending Balance	5,065,265	4,634,675	4,528,420	5,065,265	4,634,675
Health
Movement Analysis of Deferred Policy Acquisition Costs
Beginning Balance	697,958	657,275	649,082	686,763	649,082
Capitalizations	24,012	21,362		47,641	41,581
Amortization expense	(12,484)	(12,052)		(24,792)	(24,166)
Foreign exchange adjustment	183	(376)		57	(288)
Experience adjustment	0	0		0	0
Ending Balance	709,669	666,209	657,275	709,669	666,209
American Income | Life
Movement Analysis of Deferred Policy Acquisition Costs
Beginning Balance	2,332,600	2,042,907	1,960,254	2,258,291	1,960,254
Capitalizations	118,777		115,593	234,172	230,021
Amortization expense	(39,443)		(34,751)	(77,742)	(68,264)
Foreign exchange adjustment	5,546		(6,978)	2,759	(5,240)
Experience adjustment	0		0	0	0
Ending Balance	2,417,480	2,116,771	2,042,907	2,417,480	2,116,771
American Income | Health
Movement Analysis of Deferred Policy Acquisition Costs
Beginning Balance	59,890	51,820	49,406	57,811	49,406
Capitalizations	3,177	3,190		6,320	6,345
Amortization expense	(965)	(858)		(1,903)	(1,687)
Foreign exchange adjustment	183	(376)		57	(288)
Experience adjustment	0	0		0	0
Ending Balance	62,285	53,776	51,820	62,285	53,776
United American | Health
Movement Analysis of Deferred Policy Acquisition Costs
Beginning Balance	76,388	80,204	81,140	77,394	81,140
Capitalizations	489	488		996	1,068
Amortization expense	(1,528)	(1,518)		(3,041)	(3,034)
Foreign exchange adjustment	0	0		0	0
Experience adjustment	0	0		0	0
Ending Balance	75,349	79,174	80,204	75,349	79,174
DTC | Life
Movement Analysis of Deferred Policy Acquisition Costs
Beginning Balance	1,699,588	1,608,739	1,583,695	1,676,931	1,583,695
Capitalizations	39,979		45,441	87,389	93,657
Amortization expense	(24,852)		(23,446)	(49,605)	(46,618)
Foreign exchange adjustment	0		0	0	0
Experience adjustment	0		0	0	0
Ending Balance	1,714,715	1,630,734	1,608,739	1,714,715	1,630,734
DTC | Health
Movement Analysis of Deferred Policy Acquisition Costs
Beginning Balance	1,807	1,988	2,032	1,854	2,032
Capitalizations	0	2		0	2
Amortization expense	(47)	(45)		(94)	(89)
Foreign exchange adjustment	0	0		0	0
Experience adjustment	0	0		0	0
Ending Balance	1,760	1,945	1,988	1,760	1,945
Family Heritage | Health
Movement Analysis of Deferred Policy Acquisition Costs
Beginning Balance	425,145	394,925	388,967	416,608	388,967
Capitalizations	15,494	13,067		30,591	25,430
Amortization expense	(6,640)	(6,270)		(13,200)	(12,675)
Foreign exchange adjustment	0	0		0	0
Experience adjustment	0	0		0	0
Ending Balance	433,999	401,722	394,925	433,999	401,722
Liberty National | Life
Movement Analysis of Deferred Policy Acquisition Costs
Beginning Balance	622,532	575,838	566,419	610,723	566,419
Capitalizations	26,428		22,349	50,649	42,814
Amortization expense	(12,751)		(11,289)	(25,163)	(22,335)
Foreign exchange adjustment	0		0	0	0
Experience adjustment	0		0	0	0
Ending Balance	636,209	586,898	575,838	636,209	586,898
Liberty National | Health
Movement Analysis of Deferred Policy Acquisition Costs
Beginning Balance	134,728	128,338	127,537	133,096	127,537
Capitalizations	4,852	4,615		9,734	8,736
Amortization expense	(3,304)	(3,361)		(6,554)	(6,681)
Foreign exchange adjustment	0	0		0	0
Experience adjustment	0	0		0	0
Ending Balance	136,276	129,592	128,338	136,276	129,592
Other | Life
Movement Analysis of Deferred Policy Acquisition Costs
Beginning Balance	297,542	300,936	301,647	298,346	301,647
Capitalizations	3,446		3,531	6,767	7,018
Amortization expense	(4,127)		(4,195)	(8,252)	(8,393)
Foreign exchange adjustment	0		0	0	0
Experience adjustment	0		0	0	0
Ending Balance	$ 296,861	$ 300,272	$ 300,936	$ 296,861	$ 300,272