v2.4.0.6
Other Assets (Details Textual) (USD $)
In Millions, unless otherwise specified
12 Months Ended
Dec. 31, 2012
8.125% notes
 
Other Assets (Textual) [Abstract]  
Senior notes, interest rate 8.125%
9.625% notes
 
Other Assets (Textual) [Abstract]  
Senior notes, interest rate 9.625%
TransUnion Corp-Successor [Member]
 
Other Assets (Textual) [Abstract]  
Investments in affiliated companies increased $ 45.9
Deferred financing fees $ 23.7