Summary Of Significant Accounting Policies (Summary Of Reinsurance Activity) (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Summary Of Significant Accounting Policies [Abstract]
Net assumed written premiums	$ 58.2	$ 50.5	$ 47.6
Net premiums earned	51.5	47.1	40.0
Provision for claims	40.8	34.8	30.4
Amortization of capitalized acquisition costs	$ 1.3	$ 1.3	$ 1.0