Unaudited Consolidated Statements of Income (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended
	Mar. 31, 2012	Mar. 31, 2011
Revenues
Net premiums earned	$ 61,551	$ 57,601
Net investment income	2,422	2,653
Commissions and other income	1,506	1,607
Net realized gains (losses) on investments	5,381	(1,469)
Total revenues	70,860	60,392
Expenses
Losses and loss expenses incurred	34,904	65,673
Other operating expenses	18,957	18,436
Total expenses	53,861	84,109
Income (loss) before federal income taxes	16,999	(23,717)
Federal income taxes (benefits)	5,493	(8,519)
Net income (loss)	$ 11,506	$ (15,198)
Per share data:
Basic and diluted earnings (losses) (in dollars per share)	$ 0.78	$ (1.02)
Dividends paid to shareholders (in dollars per share)	$ 0.25	$ 0.25
Reconciliation of shares outstanding:
Average shares outstanding - basic (in shares)	14,826	14,802
Dilutive effect of share equivalents (in shares)	16	20
Average shares outstanding - diluted (in shares)	14,842	14,822