Deferred Acquisition Costs - Analysis of Deferred Acquisition Costs (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Movement Analysis of Deferred Policy Acquisition Costs
Beginning Balance	$ 5,535,697
Amortization expense	(92,322)	$ (84,496)
Ending Balance	5,654,438	5,191,683
Life
Movement Analysis of Deferred Policy Acquisition Costs
Beginning Balance	4,844,291	4,412,015
Capitalizations	190,347	186,596
Amortization expense	(79,589)	(71,929)
Foreign exchange adjustment	(2,787)	1,738
Experience adjustment	0	0
Ending Balance	4,952,262	4,528,420
Health
Movement Analysis of Deferred Policy Acquisition Costs
Beginning Balance	686,763	649,082
Capitalizations	23,629	20,219
Amortization expense	(12,308)	(12,114)
Foreign exchange adjustment	(126)	88
Experience adjustment	0	0
Ending Balance	697,958	657,275
United American | Health
Movement Analysis of Deferred Policy Acquisition Costs
Beginning Balance	77,394	81,140
Capitalizations	507	580
Amortization expense	(1,513)	(1,516)
Foreign exchange adjustment	0	0
Experience adjustment	0	0
Ending Balance	76,388	80,204
American Income | Life
Movement Analysis of Deferred Policy Acquisition Costs
Beginning Balance	2,258,291	1,960,254
Capitalizations	115,395	114,428
Amortization expense	(38,299)	(33,513)
Foreign exchange adjustment	(2,787)	1,738
Experience adjustment	0	0
Ending Balance	2,332,600	2,042,907
American Income | Health
Movement Analysis of Deferred Policy Acquisition Costs
Beginning Balance	57,811	49,406
Capitalizations	3,143	3,155
Amortization expense	(938)	(829)
Foreign exchange adjustment	(126)	88
Experience adjustment	0	0
Ending Balance	59,890	51,820
DTC | Life
Movement Analysis of Deferred Policy Acquisition Costs
Beginning Balance	1,676,931	1,583,695
Capitalizations	47,410	48,216
Amortization expense	(24,753)	(23,172)
Foreign exchange adjustment	0	0
Experience adjustment	0	0
Ending Balance	1,699,588	1,608,739
DTC | Health
Movement Analysis of Deferred Policy Acquisition Costs
Beginning Balance	1,854	2,032
Capitalizations	0	0
Amortization expense	(47)	(44)
Foreign exchange adjustment	0	0
Experience adjustment	0	0
Ending Balance	1,807	1,988
Family Heritage | Health
Movement Analysis of Deferred Policy Acquisition Costs
Beginning Balance	416,608	388,967
Capitalizations	15,097	12,363
Amortization expense	(6,560)	(6,405)
Foreign exchange adjustment	0	0
Experience adjustment	0	0
Ending Balance	425,145	394,925
Liberty National | Life
Movement Analysis of Deferred Policy Acquisition Costs
Beginning Balance	610,723	566,419
Capitalizations	24,221	20,465
Amortization expense	(12,412)	(11,046)
Foreign exchange adjustment	0	0
Experience adjustment	0	0
Ending Balance	622,532	575,838
Liberty National | Health
Movement Analysis of Deferred Policy Acquisition Costs
Beginning Balance	133,096	127,537
Capitalizations	4,882	4,121
Amortization expense	(3,250)	(3,320)
Foreign exchange adjustment	0	0
Experience adjustment	0	0
Ending Balance	134,728	128,338
Other | Life
Movement Analysis of Deferred Policy Acquisition Costs
Beginning Balance	298,346	301,647
Capitalizations	3,321	3,487
Amortization expense	(4,125)	(4,198)
Foreign exchange adjustment	0	0
Experience adjustment	0	0
Ending Balance	$ 297,542	$ 300,936