Policy Liabilities - Schedule of Liability For Future Policy Benefits To Consolidated Income Statement (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Life
Liability for Future Policy Benefit, Activity [Line Items]
Gross Premiums	$ 777,049	$ 751,926	$ 1,544,809	$ 1,496,060
Interest expense	179,286	169,908	356,474	338,444
Health
Liability for Future Policy Benefit, Activity [Line Items]
Gross Premiums	277,460	264,572	549,764	525,347
Interest expense	26,582	25,481	52,933	50,766
American Income | Life
Liability for Future Policy Benefit, Activity [Line Items]
Gross Premiums	394,308	375,391	781,453	745,128
Interest expense	62,385	58,043	123,816	115,305
American Income | Health
Liability for Future Policy Benefit, Activity [Line Items]
Gross Premiums	28,239	28,004	56,335	55,941
Interest expense	1,624	1,605	3,256	3,206
Direct to Consumer | Life
Liability for Future Policy Benefit, Activity [Line Items]
Gross Premiums	245,736	244,267	490,443	486,929
Interest expense	42,348	39,542	84,062	78,834
Direct to Consumer | Health
Liability for Future Policy Benefit, Activity [Line Items]
Gross Premiums	3,555	3,594	7,097	7,130
Interest expense	0	0	0	0
Liberty National | Life
Liability for Future Policy Benefit, Activity [Line Items]
Gross Premiums	85,498	80,105	169,570	159,453
Interest expense	29,901	29,307	59,670	58,592
Liberty National | Health
Liability for Future Policy Benefit, Activity [Line Items]
Gross Premiums	46,690	46,601	93,434	94,097
Interest expense	6,881	7,172	13,801	14,398
Other | Life
Liability for Future Policy Benefit, Activity [Line Items]
Gross Premiums	51,507	52,163	103,343	104,550
Interest expense	44,652	43,016	88,926	85,713
United American | Health
Liability for Future Policy Benefit, Activity [Line Items]
Gross Premiums	100,847	95,615	198,679	187,881
Interest expense	1,782	1,878	3,604	3,791
Family Heritage | Health
Liability for Future Policy Benefit, Activity [Line Items]
Gross Premiums	98,129	90,758	194,219	180,298
Interest expense	$ 16,295	$ 14,826	$ 32,272	$ 29,371