Deferred Acquisition Costs - Schedule of Analysis of Deferred Acquisition Costs (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Movement Analysis of Deferred Policy Acquisition Costs
Beginning Balance	$ 6,009,477	$ 5,535,697
Amortization expense	(410,001)	(379,700)	$ (348,824)
Ending Balance	6,495,589	6,009,477	5,535,697
Life
Movement Analysis of Deferred Policy Acquisition Costs
Beginning Balance	5,271,775	4,844,291	4,412,015
Capitalizations	801,893	751,704	742,572
Amortization expense	(356,223)	(327,426)	(298,841)
Foreign exchange adjustment	(16,690)	3,206	(11,455)
Ending Balance	5,700,755	5,271,775	4,844,291
Health
Movement Analysis of Deferred Policy Acquisition Costs
Beginning Balance	734,735	686,763	649,082
Capitalizations	111,651	98,465	86,371
Amortization expense	(52,224)	(50,598)	(48,184)
Foreign exchange adjustment	(741)	105	(506)
Ending Balance	793,421	734,735	686,763
American Income | Life
Movement Analysis of Deferred Policy Acquisition Costs
Beginning Balance	2,573,370	2,258,291	1,960,254
Capitalizations	524,980	471,771	450,600
Amortization expense	(181,431)	(159,898)	(141,108)
Foreign exchange adjustment	(16,690)	3,206	(11,455)
Ending Balance	2,900,229	2,573,370	2,258,291
American Income | Health
Movement Analysis of Deferred Policy Acquisition Costs
Beginning Balance	66,783	57,811	49,406
Capitalizations	14,955	12,849	12,378
Amortization expense	(4,678)	(3,982)	(3,467)
Foreign exchange adjustment	(741)	105	(506)
Ending Balance	76,319	66,783	57,811
DTC | Life
Movement Analysis of Deferred Policy Acquisition Costs
Beginning Balance	1,737,117	1,676,931	1,583,695
Capitalizations	145,538	159,650	188,083
Amortization expense	(101,425)	(99,464)	(94,847)
Foreign exchange adjustment	0	0	0
Ending Balance	1,781,230	1,737,117	1,676,931
DTC | Health
Movement Analysis of Deferred Policy Acquisition Costs
Beginning Balance	1,679	1,854	2,032
Capitalizations	2	0	4
Amortization expense	(148)	(175)	(182)
Foreign exchange adjustment	0	0	0
Ending Balance	1,533	1,679	1,854
Liberty National | Life
Movement Analysis of Deferred Policy Acquisition Costs
Beginning Balance	666,419	610,723	566,419
Capitalizations	119,203	107,230	90,385
Amortization expense	(56,832)	(51,534)	(46,081)
Foreign exchange adjustment	0	0	0
Ending Balance	728,790	666,419	610,723
Liberty National | Health
Movement Analysis of Deferred Policy Acquisition Costs
Beginning Balance	139,941	133,096	127,537
Capitalizations	23,775	20,309	18,737
Amortization expense	(14,796)	(13,464)	(13,178)
Foreign exchange adjustment	0	0	0
Ending Balance	148,920	139,941	133,096
Other premium | Life
Movement Analysis of Deferred Policy Acquisition Costs
Beginning Balance	294,869	298,346	301,647
Capitalizations	12,172	13,053	13,504
Amortization expense	(16,535)	(16,530)	(16,805)
Foreign exchange adjustment	0	0	0
Ending Balance	290,506	294,869	298,346
United American | Health
Movement Analysis of Deferred Policy Acquisition Costs
Beginning Balance	73,489	77,394	81,140
Capitalizations	2,608	1,941	2,135
Amortization expense	(5,567)	(5,846)	(5,881)
Foreign exchange adjustment	0	0	0
Ending Balance	70,530	73,489	77,394
Family Heritage | Health
Movement Analysis of Deferred Policy Acquisition Costs
Beginning Balance	452,843	416,608	388,967
Capitalizations	70,311	63,366	53,117
Amortization expense	(27,035)	(27,131)	(25,476)
Foreign exchange adjustment	0	0	0
Ending Balance	$ 496,119	$ 452,843	$ 416,608