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Description of Business and Summary of Significant Accounting Policies (Property and Equipment Net) (Details) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2015
Dec. 31, 2014
Nonrecurring [Member]    
Property, Plant and Equipment [Line Items]    
Impairment of long-lived assets for sale $ 3.8 $ 1.3
Nonrecurring [Member] | Continuing Operations [Member]    
Property, Plant and Equipment [Line Items]    
Impairment of long-lived assets held and used 3.1 0.0
Impairment of long-lived assets for sale 3.0 1.1
Nonrecurring [Member] | Discontinued Operations, Held-for-sale [Member]    
Property, Plant and Equipment [Line Items]    
Impairment of long-lived assets for sale 0.8 0.2
Reported Value Measurement [Member] | Continuing Operations [Member]    
Property, Plant and Equipment [Line Items]    
Long-lived assets held for sale 47.1 64.7
Reported Value Measurement [Member] | Discontinued Operations, Held-for-sale [Member]    
Property, Plant and Equipment [Line Items]    
Long-lived assets held for sale $ 22.3 $ 23.2
Buildings and improvements [Member] | Minimum [Member]    
Property, Plant and Equipment [Line Items]    
Property and equipment estimated useful life 5 years  
Buildings and improvements [Member] | Maximum [Member]    
Property, Plant and Equipment [Line Items]    
Property and equipment estimated useful life 40 years  
Furniture, fixtures, and equipment [Member] | Minimum [Member]    
Property, Plant and Equipment [Line Items]    
Property and equipment estimated useful life 3 years  
Furniture, fixtures, and equipment [Member] | Maximum [Member]    
Property, Plant and Equipment [Line Items]    
Property and equipment estimated useful life 10 years