Property And Equipment (Schedule Of Property And Equipment) (Details) - USD ($) $ in Millions	Dec. 31, 2015	Dec. 31, 2014
Property, Plant and Equipment [Abstract]
Land and land improvements	$ 2.3	$ 2.3
Building and improvements	14.6	13.9
Data processing equipment and software	28.2	26.8
Office furniture and equipment	3.9	4.1
Leasehold improvements	1.6	1.5
Total property and equipment	50.6	48.6
Less: Accumulated depreciation on property and equipment	(31.7)	(27.7)
Property, Plant and Equipment, Net, Total	$ 18.9	$ 20.9