Quarterly Information

12 Months Ended

Dec. 31, 2011

Quarterly Financial Data [Abstract]

Quarterly Financial Data (Unaudited)

(17) Quarterly Financial Data (Unaudited)

	Fourth Quarter				Third Quarter				Second Quarter				First Quarter
	2011		2010		2011		2010		2011		2010		2011		2010
Net earned premium	$	550,183	$	509,786	$	544,256	$	516,166	$	524,251	$	506,385	$	508,480	$	509,587
Other revenue		64,738		67,095		66,268		59,782		60,601		61,738		55,228		71,715
Total revenue		614,921		576,881		610,524		575,948		584,852		568,123		563,708		581,302
Loss and LAE expense		337,007		290,384		380,372		297,138		334,282		298,986		347,586		326,521
Other expense		165,484		151,460		147,360		146,798		153,665		149,384		153,243		151,756
Total expense		502,491		441,844		527,732		443,936		487,947		448,370		500,829		478,277
Earnings before income taxes		112,430		135,037		82,792		132,012		96,905		119,753		62,879		103,025
Income tax expense		34,092		37,738		22,355		38,949		27,427		36,373		15,889		31,671
Net earnings	$	78,338	$	97,299	$	60,437	$	93,063	$	69,478	$	83,380	$	46,990	$	71,354
Earnings per share
Basic	$	0.74	$	0.84	$	0.56	$	0.81	$	0.61	$	0.72	$	0.41	$	0.62
Diluted		0.74		0.84		0.56		0.81		0.61		0.72		0.41		0.62
Weighted-average shares outstanding
Basic		104,260		113,834		106,919		114,002		111,389		113,935		113,754		113,668
Diluted		104,356		114,061		107,048		114,158		111,757		114,188		114,106		114,124

The sum of earnings per share for the quarters may not equal the annual amounts due to rounding.