CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017
Investments
Fixed maturity securities, available for sale, at fair value (amortized cost 2018, $7,292,023; 2017, $7,302,950)	$ 7,475,565	$ 7,724,075
Equity securities, at fair value (cost 2017, $116,320)	130,780	135,466
Limited partnership interests	273,787	247,266
Short-term and other investments	352,700	245,541
Total investments	8,232,832	8,352,348
Cash	8,247	7,627
Deferred policy acquisition costs	292,608	257,826
Goodwill	47,396	47,396
Other assets	379,266	381,182
Separate Account (variable annuity) assets	2,195,865	2,151,961
Total assets	11,156,214	11,198,340
Policy liabilities
Investment contract and life policy reserves	5,634,169	5,573,735
Unpaid claims and claim expenses	379,833	347,749
Unearned premiums	260,088	260,539
Total policy liabilities	6,274,090	6,182,023
Other policyholder funds	718,510	724,261
Other liabilities	319,705	341,053
Long-term debt	297,603	297,469
Separate Account (variable annuity) liabilities	2,195,865	2,151,961
Total liabilities	9,805,773	9,696,767
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, 2018, 65,733,532; 2017, 65,439,245	66	65
Additional paid-in capital	470,652	464,246
Retained earnings	1,248,305	1,231,177
Accumulated other comprehensive income (loss), net of tax:
Net unrealized investment gains on securities	125,596	300,177
Net funded status of benefit plans	(13,217)	(13,217)
Treasury stock, at cost, 2018, 24,723,533 shares; 2017, 24,721,372 shares	(480,961)	(480,875)
Total shareholders’ equity	1,350,441	1,501,573
Total liabilities and shareholders’ equity	$ 11,156,214	$ 11,198,340