Deferred Acquisition Costs - Schedule of Analysis of Deferred Acquisition Costs (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Movement Analysis of Deferred Policy Acquisition Costs
Beginning Balance	$ 6,009,477
Amortization expense	(99,478)	$ (92,322)
Ending Balance	6,131,237	5,654,438
Life
Movement Analysis of Deferred Policy Acquisition Costs
Beginning Balance	5,271,775	4,844,291
Capitalizations	198,646	190,347
Amortization expense	(85,768)	(79,589)
Foreign exchange adjustment	(5,828)	(2,787)
Ending Balance	5,378,825	4,952,262
Health
Movement Analysis of Deferred Policy Acquisition Costs
Beginning Balance	734,735	686,763
Capitalizations	28,696	23,629
Amortization expense	(13,311)	(12,308)
Foreign exchange adjustment	(276)	(126)
Ending Balance	749,844	697,958
American Income | Life
Movement Analysis of Deferred Policy Acquisition Costs
Beginning Balance	2,573,370	2,258,291
Capitalizations	127,443	115,395
Amortization expense	(42,976)	(38,299)
Foreign exchange adjustment	(5,828)	(2,787)
Ending Balance	2,652,009	2,332,600
American Income | Health
Movement Analysis of Deferred Policy Acquisition Costs
Beginning Balance	66,783	57,811
Capitalizations	3,530	3,143
Amortization expense	(1,099)	(938)
Foreign exchange adjustment	(276)	(126)
Ending Balance	68,938	59,890
DTC | Life
Movement Analysis of Deferred Policy Acquisition Costs
Beginning Balance	1,737,117	1,676,931
Capitalizations	42,125	47,410
Amortization expense	(25,058)	(24,753)
Foreign exchange adjustment	0	0
Ending Balance	1,754,184	1,699,588
DTC | Health
Movement Analysis of Deferred Policy Acquisition Costs
Beginning Balance	1,679	1,854
Capitalizations	1	0
Amortization expense	(37)	(47)
Foreign exchange adjustment	0	0
Ending Balance	1,643	1,807
Liberty National | Life
Movement Analysis of Deferred Policy Acquisition Costs
Beginning Balance	666,419	610,723
Capitalizations	26,065	24,221
Amortization expense	(13,599)	(12,412)
Foreign exchange adjustment	0	0
Ending Balance	678,885	622,532
Liberty National | Health
Movement Analysis of Deferred Policy Acquisition Costs
Beginning Balance	139,941	133,096
Capitalizations	7,979	4,882
Amortization expense	(3,607)	(3,250)
Foreign exchange adjustment	0	0
Ending Balance	144,313	134,728
Other premium | Life
Movement Analysis of Deferred Policy Acquisition Costs
Beginning Balance	294,869	298,346
Capitalizations	3,013	3,321
Amortization expense	(4,135)	(4,125)
Foreign exchange adjustment	0	0
Ending Balance	293,747	297,542
United American | Health
Movement Analysis of Deferred Policy Acquisition Costs
Beginning Balance	73,489	77,394
Capitalizations	496	507
Amortization expense	(1,381)	(1,513)
Foreign exchange adjustment	0	0
Ending Balance	72,604	76,388
Family Heritage | Health
Movement Analysis of Deferred Policy Acquisition Costs
Beginning Balance	452,843	416,608
Capitalizations	16,690	15,097
Amortization expense	(7,187)	(6,560)
Foreign exchange adjustment	0	0
Ending Balance	$ 462,346	$ 425,145