Consolidated Statement of Earnings (Unaudited) (USD $) In Thousands, except Per Share data	3 Months Ended		6 Months Ended
	Jun. 30, 2011	Jun. 30, 2010	Jun. 30, 2011	Jun. 30, 2010
REVENUE
Net earned premium	$ 524,251	$ 506,385	$ 1,032,731	$ 1,015,972
Net investment income	52,422	50,217	104,017	99,466
Other operating income	7,475	9,206	14,796	27,147
Net realized investment gain	1,054	2,315	495	6,840
Other-than-temporary impairment credit losses	(350)		(3,479)
Total revenue	584,852	568,123	1,148,560	1,149,425
EXPENSE
Loss and loss adjustment expense, net	334,282	298,986	681,868	625,507
Policy acquisition costs, net	84,483	81,632	167,861	161,330
Other operating expense	63,748	62,515	128,060	129,183
Interest expense	5,434	5,237	10,987	10,627
Total expense	487,947	448,370	988,776	926,647
Earnings before income tax expense	96,905	119,753	159,784	222,778
Income tax expense	27,427	36,373	43,316	68,044
Net earnings	$ 69,478	$ 83,380	$ 116,468	$ 154,734
Earnings per common share
Basic	$ 0.61	$ 0.72	$ 1.02	$ 1.34
Diluted	$ 0.61	$ 0.72	$ 1.02	$ 1.34