Policy Liabilities - Schedule of Liability For Future Policy Benefits To Consolidated Balance Sheets (Details) - USD ($) $ in Thousands	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
At Original Discount Rates
Deferred profit liability	$ 186,088	$ 178,199	$ 174,717
Deferred annuity	580,669	656,573	773,039
Interest sensitive life	711,687	723,389	732,948
Other	8,784	8,923	9,951
Total future policy benefits	18,129,506	17,552,564	16,984,615
At Current Discount Rates
Deferred profit liability	186,088	178,199	174,717
Deferred annuity	580,669	656,573	773,039
Interest sensitive life	711,687	723,389	732,948
Other	8,785	8,926	9,945
Total future policy benefits	19,169,687	18,457,263	19,460,353
Life
At Original Discount Rates
Net liability for future policy benefits—long duration life	14,028,598	13,453,055	12,854,655
At Current Discount Rates
Net liability for future policy benefits—long duration health	15,220,386	14,577,140	15,390,289
Total future policy benefits	15,220,386	14,577,140	15,390,289
Life | American Income
At Original Discount Rates
Net liability for future policy benefits—long duration life	5,195,264	4,851,995	4,538,775
At Current Discount Rates
Net liability for future policy benefits—long duration health	5,566,061	5,224,897	5,482,036
Total future policy benefits	5,566,061	5,224,897	5,482,036
Life | Direct to Consumer
At Original Discount Rates
Net liability for future policy benefits—long duration life	3,295,819	3,156,039	2,992,493
At Current Discount Rates
Net liability for future policy benefits—long duration health	3,663,000	3,502,224	3,665,180
Total future policy benefits	3,663,000	3,502,224	3,665,180
Life | Liberty National
At Original Discount Rates
Net liability for future policy benefits—long duration life	2,303,047	2,293,197	2,260,421
At Current Discount Rates
Net liability for future policy benefits—long duration health	2,362,637	2,329,070	2,481,440
Total future policy benefits	2,362,637	2,329,070	2,481,440
Life | Other
At Original Discount Rates
Net liability for future policy benefits—long duration life	3,234,468	3,151,824	3,062,966
At Current Discount Rates
Net liability for future policy benefits—long duration health	3,628,688	3,520,949	3,761,633
Total future policy benefits	3,628,688	3,520,949	3,761,633
Health
At Original Discount Rates
Net liability for future policy benefits—long duration life	2,613,680	2,532,425	2,439,305
At Current Discount Rates
Net liability for future policy benefits—long duration health	2,462,072	2,313,036	2,379,415
Total future policy benefits	2,462,072	2,313,036	2,379,415
Health | United American
At Original Discount Rates
Net liability for future policy benefits—long duration life	79,700	100,480	124,021
At Current Discount Rates
Net liability for future policy benefits—long duration health	79,178	99,822	127,537
Total future policy benefits	79,178	99,822	127,537
Health | Family Heritage
At Original Discount Rates
Net liability for future policy benefits—long duration life	1,949,955	1,844,186	1,723,581
At Current Discount Rates
Net liability for future policy benefits—long duration health	1,765,018	1,601,693	1,604,223
Total future policy benefits	1,765,018	1,601,693	1,604,223
Health | American Income
At Original Discount Rates
Net liability for future policy benefits—long duration life	135,514	124,309	114,407
At Current Discount Rates
Net liability for future policy benefits—long duration health	145,965	132,870	129,980
Total future policy benefits	145,965	132,870	129,980
Health | Direct to Consumer
At Original Discount Rates
Net liability for future policy benefits—long duration life	603	738	737
At Current Discount Rates
Net liability for future policy benefits—long duration health	625	765	772
Total future policy benefits	625	765	772
Health | Liberty National
At Original Discount Rates
Net liability for future policy benefits—long duration life	447,908	462,712	476,559
At Current Discount Rates
Net liability for future policy benefits—long duration health	471,286	477,886	516,903
Total future policy benefits	$ 471,286	$ 477,886	$ 516,903