Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Jun. 30, 2020	Dec. 31, 2019
Investments:
Fixed maturities—available for sale, at fair value (amortized cost: 2020—$16,697,900; 2019—$16,415,776, allowance for credit losses: 2020— $32,719; 2019— $0)	$ 19,661,182	$ 18,907,147
Policy loans	579,541	575,492
Other long-term investments (includes: 2020—$264,246; 2019—$185,851 under the fair value option)	432,325	326,347
Short-term investments	531,651	38,285
Total investments	21,204,699	19,847,271
Cash	114,031	75,933
Accrued investment income	251,595	245,129
Other receivables	445,539	441,662
Deferred acquisition costs	4,446,356	4,341,941
Goodwill	441,591	441,591
Other assets	630,369	583,933
Total assets	27,534,180	25,977,460
Liabilities:
Future policy benefits	14,826,175	14,508,134
Unearned and advance premium	68,397	63,709
Policy claims and other benefits payable	380,178	365,402
Other policyholders' funds	96,708	96,282
Total policy liabilities	15,371,458	15,033,527
Current and deferred income taxes	1,631,817	1,476,832
Short-term debt	831,076	298,738
Long-term debt (estimated fair value: 2020—$1,417,343; 2019—$1,473,364)	1,272,104	1,348,988
Other liabilities	579,356	525,068
Total liabilities	19,685,811	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	528,060	531,554
Accumulated other comprehensive income (loss)	2,231,893	1,844,830
Retained earnings	5,838,930	5,551,329
Treasury stock, at cost: (2020—10,767,653 shares; 2019—9,497,940 shares)	(867,732)	(750,624)
Total shareholders' equity	7,848,369	7,294,307
Total liabilities and shareholders' equity	$ 27,534,180	$ 25,977,460