Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Mar. 31, 2025	Dec. 31, 2024
Investments:
Debt Securities, Available-for-Sale	$ 17,504,967	$ 17,155,012
Mortgage loans	426,174	396,088
Policy loans	708,175	699,669
Other long-term investments (includes: 2025—$989,027; 2024—$986,766 under the fair value option)	1,236,624	1,235,759
Short-term investments	134,066	85,035
Total investments	20,010,006	19,571,563
Cash	232,270	165,325
Accrued investment income	287,562	269,791
Other receivables	691,523	691,907
Deferred acquisition costs	6,623,644	6,495,589
Goodwill	490,446	490,446
Other assets	1,369,808	1,391,560
Total assets	29,705,259	29,076,181
Liabilities:
Future policy benefits at current discount rates: (at original discount rates: 2025—$17,719,841; 2024—$17,552,564)	18,756,844	18,457,263
Unearned and advance premium	273,887	257,631
Policy claims and other benefits payable	546,670	532,832
Other policyholders' funds	463,148	468,604
Total policy liabilities	20,040,549	19,716,330
Current and deferred income taxes	807,735	731,255
Short-term debt	476,891	415,401
Long-term debt (estimated fair value: 2025—$2,150,340; 2024—$2,122,772)	2,324,945	2,324,251
Other liabilities	629,723	583,424
Total liabilities	24,279,843	23,770,661
Commitments and Contingencies (Note 5)
Shareholders' equity:
Preferred stock, par value $1 per share—5,000,000 shares authorized; outstanding: 0 in 2025 and 2024	0	0
Common stock, par value $1 per share—320,000,000 shares authorized; outstanding: (2025—97,218,183 issued; 2024—97,218,183 issued)	97,218	97,218
Additional paid-in-capital	524,041	527,795
Accumulated other comprehensive income (loss)	(1,970,873)	(2,029,720)
Retained earnings	8,224,948	8,002,521
Treasury stock, at cost: (2025—14,297,002 shares; 2024—13,240,616 shares)	(1,449,918)	(1,292,294)
Total shareholders' equity	5,425,416	5,305,520
Total liabilities and shareholders' equity	$ 29,705,259	$ 29,076,181