Consolidated Statements of Operations (Unaudited) (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2012	Sep. 30, 2011
Revenues
Net earned premiums	$ 162,493	$ 151,254	$ 477,099	$ 444,620
Net investment income	10,142	10,081	30,551	29,716
Net realized gains on investments	153	1,844	1,226	2,702
Finance and other service income	4,743	4,856	13,769	13,731
Total revenue	177,531	168,035	522,645	490,769
Expenses
Losses and loss adjustment expenses	106,445	111,545	307,184	347,359
Underwriting, operating and related expenses	50,054	45,453	146,602	132,153
Interest expense	22	23	66	66
Total expenses	156,521	157,021	453,852	479,578
Income before income taxes	21,010	11,014	68,793	11,191
Income tax expense	6,676	2,204	20,294	2,249
Net income	$ 14,334	$ 8,810	$ 48,499	$ 8,942
Earnings per weighted average common share:
Basic	$ 0.94	$ 0.58	$ 3.17	$ 0.59
Diluted	$ 0.94	$ 0.58	$ 3.17	$ 0.59
Cash dividends paid per common share	$ 0.60	$ 0.50	$ 1.60	$ 1.50
Number of shares used in computing earnings per share:
Basic	15,312,178	15,187,430	15,277,560	15,157,762
Diluted	15,319,885	15,195,819	15,284,400	15,169,738