Segment Reporting (Narrative) (Details) (USD $)
3 Months Ended
Mar. 31, 2015
Mar. 31, 2014
Dec. 31, 2014
Segment Reporting Information [Line Items]      
Number of business segments 3    
Foreign Locations [Member]      
Segment Reporting Information [Line Items]      
Revenue $ 0 $ 0  
Long lived assets $ 0   $ 0