Summary of Significant Accounting Policies (Property and Equipment) (Details) (USD $)
In Millions, unless otherwise specified
3 Months Ended 12 Months Ended
Dec. 31, 2014
Dec. 31, 2014
Property, Plant and Equipment [Line Items]    
Impairment for previously capitalize software costs $ 2.2  
Buildings    
Property, Plant and Equipment [Line Items]    
Property and equipment, estimated useful lives   39 years
Furniture and Office Equipment | Minimum    
Property, Plant and Equipment [Line Items]    
Property and equipment, estimated useful lives   3 years
Furniture and Office Equipment | Maximum    
Property, Plant and Equipment [Line Items]    
Property and equipment, estimated useful lives   7 years
Software    
Property, Plant and Equipment [Line Items]    
Property and equipment, estimated useful lives   3 years
Vehicles    
Property, Plant and Equipment [Line Items]    
Property and equipment, estimated useful lives   5 years