CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016
Investments
Fixed maturity securities, available for sale, at fair value (amortized cost 2017, $7,302,950; 2016, $7,152,127)	$ 7,724,075	$ 7,456,708
Equity securities, available for sale, at fair value (cost 2017, $116,320; 2016, $134,013)	135,466	141,649
Short-term and other investments	492,807	401,015
Total investments	8,352,348	7,999,372
Cash	7,627	16,670
Deferred policy acquisition costs	257,826	267,580
Goodwill	47,396	47,396
Other assets	381,182	321,874
Separate Account (variable annuity) assets	2,151,961	1,923,932
Total assets	11,198,340	10,576,824
Policy liabilities
Investment contract and life policy reserves	5,573,735	5,447,969
Unpaid claims and claim expenses	347,749	329,888
Unearned premiums	260,539	246,274
Total policy liabilities	6,182,023	6,024,131
Other policyholder funds	724,261	708,950
Other liabilities	341,053	378,620
Long-term debt	297,469	247,209
Separate Account (variable annuity) liabilities	2,151,961	1,923,932
Total liabilities	9,696,767	9,282,842
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, 2017, 65,439,245; 2016, 64,917,683	65	65
Additional paid-in capital	464,246	453,479
Retained earnings	1,231,177	1,155,732
Accumulated other comprehensive income (loss), net of taxes:
Net unrealized investment gains on fixed maturity and equity securities	300,177	175,738
Net funded status of benefit plans	(13,217)	(11,817)
Treasury stock, at cost, 2017, 24,721,372 shares; 2016, 24,672,932 shares	(480,875)	(479,215)
Total shareholders' equity	1,501,573	1,293,982
Total liabilities and shareholders' equity	$ 11,198,340	$ 10,576,824