v2.4.0.8
Organization and Nature of Operations (Details) (USD $)
In Trillions, unless otherwise specified
9 Months Ended
Sep. 30, 2013
item
segment
Organization and Nature of Operations [Abstract]  
Operations in number of continents 6
Total number of U.S. listed companies 2,602
Approximate combined market capitalization, U.S. $ 6.3
Total number of listed companies within Nordic and Baltic exchanges 752
Approximate combined market capitalization $ 1.2