Summary of Significant Accounting Policies Losses, Claims and Settlement Expenses - General (Details) (USD $)			12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2013 Minimum [Member]	Dec. 31, 2013 Maximum [Member]
Supplementary Insurance Information, by Segment
Workers' compensation discount, percent			3.50%	4.00%
General liability insurance face amount	$ 10,000,000		$ 1,000,000	$ 2,000,000
Retention payable	500,000
Reserve for losses and loss adjustment expenses	159,700,000	147,100,000
Reserve for losses and loss adjustment expenses, net of reinsurance	$ 121,300,000	$ 119,400,000
Average five year survival ratio, gross	5.5	4.7
Average five year survival ratio, net	7.8	7.6