Unaudited Quarterly Financial Data

12 Months Ended

Dec. 31, 2011

Unaudited Quarterly Financial Data [Abstract]

Unaudited Quarterly Financial Data

22.  UNAUDITED QUARTERLY FINANCIAL DATA

Summarized quarterly financial data for the periods indicated:

	2011
(Dollars in thousands, except per share amounts)	1st Quarter			2nd Quarter			3rd Quarter			4th Quarter
Operating data:
Gross written premiums	$	1,064,929		$	987,865		$	1,128,506		$	1,104,874
Net written premiums		1,019,884			955,121			1,090,790			1,043,104
Premiums earned		1,011,446			1,039,835			1,044,338			1,005,728
Net investment income		178,705			158,618			156,465			126,253
Net realized capital gains (losses)		12,156			(4,845	)		(137,671	)		137,283
Total claims and underwriting expenses		1,531,189			1,019,060			998,117			1,310,762
Net income (loss)		(315,894	)		131,312			63,054			41,042
Earnings per common share:
Basic	$	(5.81	)	$	2.42		$	1.16		$	0.76
Diluted	$	(5.81	)	$	2.41		$	1.16		$	0.76

	2010
(Dollars in thousands, except per share amounts)	1st Quarter			2nd Quarter			3rd Quarter		4th Quarter
Operating data:
Gross written premiums	$	1,021,019		$	1,013,509		$	1,163,591	$	1,002,600
Net written premiums		969,253			948,970			1,085,225		942,130
Premiums earned		927,302			989,899			997,265		1,020,159
Net investment income		161,499			165,731			141,368		184,865
Net realized capital gains (losses)		72,718			(41,693	)		38,295		32,591
Total claims and underwriting expenses		1,158,462			922,188			956,597		1,006,578
Net income (loss)		(22,652	)		156,673			174,200		302,533
Earnings per common share:
Basic	$	(0.38	)	$	2.70		$	3.12	$	5.53
Diluted	$	(0.38	)	$	2.70		$	3.11	$	5.51