Consolidated Balance Sheets (USD $) In Thousands, unless otherwise specified	Jun. 30, 2014	Dec. 31, 2013
Investments and cash:
Fixed maturities, available-for-sale, at fair value (amortized cost: 2014, $2,177,094; 2013, $2,036,999)	$ 2,220,855	$ 2,047,873
Equity securities, available-for-sale, at fair value (cost: 2014, $148,412; 2013, $118,804)	180,486	143,954
Short-term investments, at cost which approximates fair value	226,237	296,250
Cash	72,604	86,509
Total investments and cash	2,700,182	2,574,586
Premiums receivable	417,122	325,025
Prepaid reinsurance premiums	246,699	247,822
Reinsurance recoverable on paid losses	42,074	38,384
Reinsurance recoverable on unpaid losses and loss adjustment expenses	841,981	822,438
Deferred policy acquisition costs	76,975	67,007
Accrued investment income	14,579	13,866
Goodwill and other intangible assets	7,218	7,177
Current income tax receivable, net	7,149	9,918
Deferred income tax, net	17,307	28,187
Other assets	44,445	35,042
Total assets	4,415,731	4,169,452
Liabilities:
Reserves for losses and loss adjustment expenses	2,137,802	2,045,071
Unearned premiums	801,302	714,606
Reinsurance balances payable	159,261	167,252
Senior Notes	263,373	263,308
Payable for investments purchased	18,615	7,624
Accounts payable and other liabilities	63,298	69,379
Total liabilities	3,443,651	3,267,240
Stockholders' equity:
Preferred stock, $.10 par value, authorized 1,000,000 shares, none issued	0	0
Common stock, $.10 par value, authorized 50,000,000 shares, issued 17,772,359 shares for 2014 and 17,709,876 shares for 2013	1,776	1,770
Additional paid-in capital	339,523	335,546
Treasury stock, at cost (3,511,380 shares for 2014 and 2013)	(155,801)	(155,801)
Retained earnings	737,166	692,337
Accumulated other comprehensive income	49,416	28,360
Total stockholders' equity	972,080	902,212
Total liabilities and stockholders' equity	$ 4,415,731	$ 4,169,452