Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Sep. 30, 2020	Dec. 31, 2019
Investments:
Fixed maturities—available for sale, at fair value (amortized cost: 2020—$16,892,054; 2019—$16,415,776, allowance for credit losses: 2020— $4,387; 2019— $0)	$ 20,277,056	$ 18,907,147
Policy loans	581,211	575,492
Other long-term investments (includes: 2020—$326,641; 2019—$185,851 under the fair value option)	492,884	326,347
Short-term investments	263,879	38,285
Total investments	21,615,030	19,847,271
Cash	80,101	75,933
Accrued investment income	259,697	245,129
Other receivables	458,359	441,662
Deferred acquisition costs	4,517,255	4,341,941
Goodwill	441,591	441,591
Other assets	669,860	583,933
Total assets	28,041,893	25,977,460
Liabilities:
Future policy benefits	15,045,864	14,508,134
Unearned and advance premium	64,703	63,709
Policy claims and other benefits payable	367,453	365,402
Other policyholders' funds	97,463	96,282
Total policy liabilities	15,575,483	15,033,527
Current and deferred income taxes	1,682,060	1,476,832
Short-term debt	279,758	298,738
Long-term debt (estimated fair value: 2020—$1,842,164; 2019—$1,473,364)	1,667,506	1,348,988
Other liabilities	612,178	525,068
Total liabilities	19,816,985	18,683,153
Commitments and Contingencies (Note 5)
Shareholders' equity:
Preferred stock, par value $1 per share—5,000,000 shares authorized; outstanding: 0 in 2020 and 2019	0	0
Common stock, par value $1 per share—320,000,000 shares authorized; outstanding: (2020—117,218,183 issued; 2019— 117,218,183 issued)	117,218	117,218
Additional paid-in-capital	536,727	531,554
Accumulated other comprehensive income (loss)	2,550,619	1,844,830
Retained earnings	6,002,407	5,551,329
Treasury stock, at cost: (2020—12,160,518 shares; 2019—9,497,940 shares)	(982,063)	(750,624)
Total shareholders' equity	8,224,908	7,294,307
Total liabilities and shareholders' equity	$ 28,041,893	$ 25,977,460