Consolidated Statements of Income (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 [Abstract]
Net premiums earned	$ 176,531	$ 158,704	$ 508,124	$ 425,118
Investment income, net of investment expenses	28,665	26,926	86,560	81,730
Net realized investment gains
Other-than-temporary impairment charges	0	0	(4)	0
All other net realized gains	1,300	1,219	4,662	4,996
Net realized investment gains	1,300	1,219	4,658	4,996
Other income	85	725	584	1,610
Total Revenue	206,581	187,574	599,926	513,454
Benefits, Losses and Expenses
Losses and loss settlement expenses	119,756	120,861	318,006	332,854
Future policy benefits	9,815	9,167	28,309	25,229
Amortization of deferred policy acquisition costs	36,167	43,022	104,897	112,800
Other underwriting expenses	20,496	14,101	63,031	44,878
Interest on policyholders' accounts	10,327	10,897	31,610	32,224
Total expenses	196,561	198,048	545,853	547,985
Income (loss) before income taxes	10,020	(10,474)	54,073	(34,531)
Federal income tax expense (benefit)	1,290	(5,698)	11,443	(17,651)
Net Income (loss)	8,730	(4,776)	42,630	(16,880)
Other comprehensive income (loss)
Change in net unrealized appreciation on investments	20,613	(7,048)	42,882	15,891
Adjustment for net realized gains included in income	(1,300)	(1,219)	(4,658)	(4,996)
Adjustment for employee benefit costs included in expense	1,085	643	3,460	1,929
Other comprehensive income (loss) before tax	20,398	(7,624)	41,684	12,824
Income tax effect	(6,964)	2,795	(14,414)	(4,362)
Other comprehensive income (loss) after tax	13,434	(4,829)	27,270	8,462
Comprehensive income (loss)	$ 22,164	$ (9,605)	$ 69,900	$ (8,418)
Weighted average common shares outstanding	25,423,191	25,722,572	25,468,293	26,004,923
Basic earnings (loss) per common share	$ 0.34	$ (0.19)	$ 1.67	$ (0.65)
Diluted earnings (loss) per common share	$ 0.34	$ (0.19)	$ 1.67	$ (0.65)
Cash dividends declared per common share	$ 0.15	$ 0.15	$ 0.45	$ 0.45