Policy Liabilities - Schedule of Liability For Future Policy Benefits To Consolidated Balance Sheets (Details) - USD ($) $ in Thousands	Jun. 30, 2024	Dec. 31, 2023	Jun. 30, 2023
At Original Discount Rates
Deferred profit liability	$ 176,123		$ 172,531
Deferred annuity	706,022		853,064
Interest sensitive life	728,097		736,920
Other	9,702		9,906
Total future policy benefits	17,269,793		16,648,491
At Current Discount Rates
Deferred profit liability	176,123		172,531
Deferred annuity	706,022		853,064
Interest sensitive life	728,097		736,920
Other	9,704		9,909
Net liability for future policy benefits—long duration health	18,430,672	$ 19,460,353	18,806,051
Life
At Original Discount Rates
Net liability for future policy benefits—long duration life	13,167,912		12,476,349
At Current Discount Rates
Net liability for future policy benefits—long duration health	14,526,598		14,742,767
Net liability for future policy benefits—long duration health	14,526,598		14,742,767
Health
At Original Discount Rates
Net liability for future policy benefits—long duration life	2,481,937		2,399,721
At Current Discount Rates
Net liability for future policy benefits—long duration health	2,284,128		2,290,860
Net liability for future policy benefits—long duration health	2,284,128		2,290,860
American Income | Life
At Original Discount Rates
Net liability for future policy benefits—long duration life	4,705,606		4,354,545
At Current Discount Rates
Net liability for future policy benefits—long duration health	5,175,698		5,195,432
Net liability for future policy benefits—long duration health	5,175,698		5,195,432
American Income | Health
At Original Discount Rates
Net liability for future policy benefits—long duration life	114,716		113,981
At Current Discount Rates
Net liability for future policy benefits—long duration health	123,480		127,340
Net liability for future policy benefits—long duration health	123,480		127,340
Direct to Consumer | Life
At Original Discount Rates
Net liability for future policy benefits—long duration life	3,078,612		2,892,543
At Current Discount Rates
Net liability for future policy benefits—long duration health	3,479,316		3,503,406
Net liability for future policy benefits—long duration health	3,479,316		3,503,406
Direct to Consumer | Health
At Original Discount Rates
Net liability for future policy benefits—long duration life	673		798
At Current Discount Rates
Net liability for future policy benefits—long duration health	693		827
Net liability for future policy benefits—long duration health	693		827
Liberty National | Life
At Original Discount Rates
Net liability for future policy benefits—long duration life	2,275,889		2,226,220
At Current Discount Rates
Net liability for future policy benefits—long duration health	2,339,535		2,405,467
Net liability for future policy benefits—long duration health	2,339,535		2,405,467
Liberty National | Health
At Original Discount Rates
Net liability for future policy benefits—long duration life	469,145		485,797
At Current Discount Rates
Net liability for future policy benefits—long duration health	487,206		519,646
Net liability for future policy benefits—long duration health	487,206		519,646
Other premium | Life
At Original Discount Rates
Net liability for future policy benefits—long duration life	3,107,805		3,003,041
At Current Discount Rates
Net liability for future policy benefits—long duration health	3,532,049		3,638,462
Net liability for future policy benefits—long duration health	3,532,049		3,638,462
United American | Health
At Original Discount Rates
Net liability for future policy benefits—long duration life	115,771		134,120
At Current Discount Rates
Net liability for future policy benefits—long duration health	114,028		136,537
Net liability for future policy benefits—long duration health	114,028		136,537
Family Heritage | Health
At Original Discount Rates
Net liability for future policy benefits—long duration life	1,781,632		1,665,025
At Current Discount Rates
Net liability for future policy benefits—long duration health	1,558,721		1,506,510
Net liability for future policy benefits—long duration health	$ 1,558,721		$ 1,506,510