Operating Segments (Narrative) (Details)
12 Months Ended
Dec. 31, 2013
Dec. 31, 2012
Dec. 31, 2011
Operating Segments (Textual) [Abstract]      
Minimum percentage of reportable segments net operating results 10.00%    
Maximum percentage of reportable segments total assets and operating results 90.00% 90.00% 90.00%