Consolidated Balance Sheets - USD ($) $ in Thousands	Mar. 31, 2016	Dec. 31, 2015
Investments:
Fixed maturities, available-for-sale, at fair value (amortized cost: 2016: $2,432,837; 2015: $2,400,245)	$ 2,477,720	$ 2,414,210
Equity securities, available-for-sale, at fair value (cost: 2016: $286,811; 2015: $281,943)	314,815	305,271
Short-term investments, at fair value (amortized cost: 2016: $211,782; 2015: $217,743)	211,782	217,745
Total investments	3,004,317	2,937,226
Cash	72,618	69,901
Premiums receivable	348,916	276,616
Prepaid reinsurance premiums	220,696	232,588
Reinsurance recoverable on paid losses	55,752	49,506
Reinsurance recoverable on unpaid losses and loss adjustment expenses	793,632	809,518
Deferred policy acquisition costs	105,359	91,983
Accrued investment income	16,451	16,001
Goodwill and other intangible assets	6,746	6,807
Current income tax receivable, net	13,032	22,323
Deferred income tax, net		3,900
Other assets	59,114	67,643
Total assets	4,696,633	4,584,012
Liabilities:
Reserves for losses and loss adjustment expenses	2,211,848	2,202,644
Unearned premiums	864,247	820,676
Reinsurance balances payable	123,165	107,411
Senior notes	263,616	263,580
Deferred income tax, net	8,280
Accounts payable and other liabilities	81,598	93,553
Total liabilities	$ 3,552,754	$ 3,487,864
Stockholders' equity:
Preferred stock, $.10 par value, authorized 1,000,000 shares, none issued
Common stock, $.10 par value, authorized 50,000,000 shares, issued 18,042,474 shares for 2016 and 17,942,269 shares for 2015	$ 1,803	$ 1,793
Additional paid-in capital	359,829	357,829
Treasury stock, at cost (3,511,380 shares for 2016 and 2015)	(155,801)	(155,801)
Retained earnings	891,655	868,723
Accumulated other comprehensive income	46,393	23,604
Total stockholders' equity	1,143,879	1,096,148
Total liabilities and stockholders' equity	$ 4,696,633	$ 4,584,012