Reserve For Losses, LAE And Future Policy Benefit Reserve (Summary Of Incurred Losses With Respect To A&E Reserves On Both Gross And Net Of Reinsurance Basis) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Reserve For Losses And LAE [Abstract]
Gross basis: Beginning of period reserves	$ 442,821	$ 499,911	$ 554,790
Gross basis: Incurred losses	5,598	132	753
Gross basis: Paid losses	(45,958)	(57,222)	(55,632)
Gross basis: End of period reserves	402,461	442,821	499,911
Net basis: Beginning of period reserves	305,469	341,251	382,507
Net basis: Incurred losses	3,965	17	(30)
Net basis: Paid losses	(40,064)	(35,799)	(41,226)
Net basis: End of period reserves	$ 269,370	$ 305,469	$ 341,251