Summary of Significant Accounting Policies (Narrative) (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Finite-Lived Intangible Assets [Line Items]
Property, Plant and Equipment, Useful Life	40 years
Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment	$ 38.5	$ 42.3
Property, Plant and Equipment, Gross	222.7	117.3
Depreciation	9.4	8.4	9.0
Capital Leased Assets, Gross	167.3
Capital Leases, Lessee Balance Sheet, Assets by Major Class, Accumulated Depreciation	1.4
Amortization of Leased Asset	1.4
Goodwill	7.0	7.0
Value of Business Acquired (VOBA)	4.5	5.5
Accumulated Amortization Of Value Of Business Acquired VOBA	13.5	13.0
Amortization of Value of Business Acquired (VOBA)	0.4	0.3	0.2
Values Of Business Acquired Distribution Agreements And Customer Relationships	76.3	85.8
Accumulated Amortization Of Values Of Business Acquired Distribution Agreements And Customer Relationships	44.4	34.9
Amortization Of Values Of Business Acquired Distribution Agreements And Customer Relationships	9.5	10.1	10.5
Future Amortization Expense, Year One	9.4
Future Amortization Expense, Year Two	9.0
Future Amortization Expense, Year Three	8.7
Future Amortization Expense, Year Four	8.3
Future Amortization Expense, Year Five	8.1
Capitalized Computer Software, Net	77.6	49.6
Capitalized Computer Software, Amortization	$ 5.9	$ 6.9	$ 6.5
Value of Customer Relationships Acquired [Member]
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Asset, Useful Life	15 years
Value of Distribution Agreements [Member]
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Asset, Useful Life	15 years