Accounting Policies (Schedule of Profit Sharing Commission) (Details)	Jan. 01, 2008	Jan. 01, 2007	Jan. 01, 2006	Dec. 31, 2005	Jul. 01, 2004	Jul. 01, 2003	Jul. 01, 2002	Jul. 01, 2001
Standard Commercial P & C Business Unit [Member]
Provisional loss ratio				64.20%	64.20%	59.00%	59.00%	60.00%
Estimated ultimate loss ratio recorded to at December 31, 2015				61.40%	66.20%	61.20%	64.50%	63.50%
MGA Commercial Products [Member]
Provisional loss ratio	65.00%	65.00%	65.00%
Estimated ultimate loss ratio recorded to at December 31, 2015	61.40%	65.60%	59.40%