v2.4.0.8
Debt Interest Expense (Details) (USD $)
In Millions, unless otherwise specified
3 Months Ended
Mar. 31, 2014
Mar. 31, 2013
Total interest $ 50.8 $ 49.8
Senior secured term loan
   
Total interest 12.6 11.7
Senior Secured Revolving Line Of Credit [Member]
   
Total interest 0.1 0
11.375% Senior notes
   
Total interest 13.8 14.2
Nine Point Six Two Five Percent Fixed Interest Per Annum Trans Union Holding Senior Unsecured [Member]
   
Total interest 15.7 15.5
8.125% Senior notes
   
Total interest 8.5 8.5
Other
   
Total interest $ 0.1 $ (0.1)