Losses And Loss Adjustment Expenses (Narrative) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Extraordinary Item [Line Items]
Prior year claims and claim adjustment expense	$ 12,658	$ (3,193)	$ 2,960
Catastrophe [Member]
Extraordinary Item [Line Items]
Pre-tax catastrophe losses	$ 19,000	$ 11,000	$ 17,000