Reserve for Losses and Loss Adjustment Expenses (Detail Textuals) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Favorable development on prior year loss reserves
Reserve for losses and loss adjustment expenses	$ 9,585	$ 15,352	$ 14,592	$ 19,102
Excess and Surplus Lines
Favorable development on prior year loss reserves
Reserve for losses and loss adjustment expenses	10,100	12,000	18,500	18,300
Specialty Admitted Insurance
Favorable development on prior year loss reserves
Reserve for losses and loss adjustment expenses	2,000	2,200	2,200	3,300
Casualty Reinsurance
Favorable development on prior year loss reserves
Reserve for losses and loss adjustment expenses	$ (2,500)	$ 1,200	$ (6,000)	$ (2,400)