Consolidated Balance Sheets - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Investments:
Fixed maturities—available for sale, at fair value (amortized cost: 2021—$17,805,309; 2020—$17,197,145, allowance for credit losses: 2021— $387; 2020— $3,346)	$ 21,305,287	$ 21,213,509
Policy loans	589,634	584,379
Other long-term investments (includes: 2021—$640,263; 2020—$385,038 under the fair value option)	793,925	546,981
Short-term investments	69,145	107,782
Total investments	22,757,991	22,452,651
Cash	92,163	94,847
Accrued investment income	251,307	248,991
Other receivables	487,443	474,180
Deferred acquisition costs	4,914,728	4,595,444
Goodwill	481,791	441,591
Other assets	782,625	739,027
Total assets	29,768,048	29,046,731
Liabilities:
Future policy benefits	16,034,727	15,243,536
Unearned and advance premium	65,472	61,728
Policy claims and other benefits payable	412,940	399,507
Other policyholders' funds	98,935	97,968
Total policy liabilities	16,612,074	15,802,739
Current and deferred income taxes	1,765,021	1,833,723
Short-term debt	479,644	254,918
Long-term debt (estimated fair value: 2021—$1,667,009; 2020—$1,871,754)	1,546,494	1,667,886
Other liabilities	722,009	716,373
Total liabilities	21,125,242	20,275,639
Commitments and Contingencies (Note 6)
Shareholders' equity:
Preferred stock, par value $1 per share—5,000,000 shares authorized; outstanding: 0 in 2021 and 2020	0	0
Common stock, par value $1 per share—320,000,000 shares authorized; outstanding: (2021—109,218,183 issued; 2020—113,218,183 issued)	109,218	113,218
Additional paid-in-capital	520,564	527,435
Accumulated other comprehensive income (loss)	2,677,583	3,029,244
Retained earnings	6,182,100	5,874,109
Treasury stock, at cost: (2021—9,650,845 shares; 2020—9,420,699 shares)	(846,659)	(772,914)
Total shareholders' equity	8,642,806	8,771,092
Total liabilities and shareholders' equity	$ 29,768,048	$ 29,046,731