Summary Of Significant Accounting Policies (Summary Of Reinsurance Activity) (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Summary Of Significant Accounting Policies [Abstract]
Net assumed written premiums	$ 14.7	$ 16.3
Net premiums earned	13.2	12.0
Provision for claims	11.0	9.0
Amortization of capitalized acquisition costs	$ 0.3	$ 0.3