CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Investments
Fixed maturity securities, available for sale, at fair value (amortized cost 2020, $5,788,551; 2019, $5,456,980)	$ 6,345,290	$ 5,791,676
Equity securities at fair value	121,653	101,864
Limited partnership interests	448,996	383,717
Short-term and other investments	346,295	361,976
Total investments	7,262,234	6,639,233
Cash	22,323	25,508
Deferred policy acquisition costs	229,828	276,668
Deposit asset on reinsurance	2,420,926	2,346,166
Intangible assets	158,460	177,217
Goodwill	43,454	49,079
Other assets	443,165	474,364
Separate Account (variable annuity) assets	2,891,423	2,490,469
Total assets	13,471,813	12,478,704
Policy liabilities
Investment contract and policy reserves	6,445,323	6,234,452
Unpaid claims and claim expenses	438,754	442,854
Unearned premiums	264,489	279,163
Total policy liabilities	7,148,566	6,956,469
Other policyholder funds	751,296	647,283
Other liabilities	453,126	384,173
Short-term debt	135,000	135,000
Long-term debt	302,323	298,025
Separate Account (variable annuity) liabilities	2,891,423	2,490,469
Total liabilities	11,681,734	10,911,419
Preferred stock, $0.001 par value, authorized 1,000,000 shares; none issued	0	0
Common stock, $0.001 par value, authorized 75,000,000 shares; issued, 2020, 66,316,797; 2019, 66,088,808	66	66
Additional paid-in capital	488,367	480,962
Retained earnings	1,434,634	1,352,539
Accumulated other comprehensive income (loss), net of tax:
Net unrealized investment gains on fixed maturity securities	366,285	230,448
Net funded status of benefit plans	(11,165)	(10,767)
Treasury stock, at cost, 2020, 24,902,579 shares; 2019, 24,850,484 shares	(488,108)	(485,963)
Total shareholders' equity	1,790,079	1,567,285
Total liabilities and shareholders' equity	$ 13,471,813	$ 12,478,704