Schedule IV Reinsurance

12 Months Ended

Dec. 31, 2011

Reinsurance Insuarnce Premiums Earned [Abstract]

Supplemental Schedule of Reinsurance Premiums for Insurance Companies [Text Block]

Schedule IV—Reinsurance

Insurance Premiums Earned

Years Ended December 31, 2011, 2010 and 2009

($ in thousands)	Gross Amount		Ceded to Other Companies		Assumed from Other Companies		Net Amount		Assumed Premiums as a Percentage of Net Premiums
2011	$	762,428	$	38,740	$	32,337	$	756,025	4.28	%
2010	$	891,167	$	94,497	$	29,063	$	825,733	3.52	%
2009	$	919,778	$	139,626	$	45,749	$	825,901	5.54	%