CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016
Investments:
Fixed maturity securities available-for-sale, at fair value (amortized cost $1,253,166 and $1,189,525)	$ 1,275,016	$ 1,199,699
Equity securities available-for-sale, at fair value (cost $144,274 and $147,479)	228,115	213,839
Other long-term investments	13,648	12,506
Short-term investments	23,613	39,670
Total investments	1,540,392	1,465,714
Cash	347	307
Reinsurance receivables due from affiliate	31,650	21,326
Prepaid reinsurance premiums due from affiliate	12,789	9,309
Deferred policy acquisition costs (affiliated $40,848 and $40,660)	41,114	40,939
Prepaid pension and postretirement benefits due from affiliate	20,683	12,314
Accrued investment income	11,286	11,050
Amounts receivable under reverse repurchase agreements	16,500	20,000
Accounts receivable	1,604	2,076
Goodwill	942	942
Other assets (affiliated $4,423 and $4,632)	4,633	4,836
Total assets	1,681,940	1,588,813
LIABILITIES
Losses and settlement expenses (affiliated $726,413 and $685,533)	732,612	690,532
Unearned premiums (affiliated $256,434 and $243,682)	257,797	244,885
Other policyholders' funds (all affiliated)	10,013	13,068
Surplus notes payable to affiliate	25,000	25,000
Amounts due affiliate to settle inter-company transaction balances	367	11,222
Pension benefits payable to affiliate	4,185	4,097
Income taxes payable	544	2,359
Deferred income taxes	15,020	11,321
Other liabilities (affiliated $27,520 and $27,871)	32,556	32,987
Total liabilities	1,078,094	1,035,471
STOCKHOLDERS' EQUITY
Common stock, $1 par value, authorized 30,000,000 shares; issued and outstanding, 21,455,545 shares in 2017 and 21,222,535 shares in 2016	21,455	21,223
Additional paid-in capital	124,556	119,054
Accumulated other comprehensive income	83,384	46,081
Retained earnings	374,451	366,984
Total stockholders' equity	603,846	553,342
Total liabilities and stockholders' equity	$ 1,681,940	$ 1,588,813