Quarterly report pursuant to Section 13 or 15(d)

Related Party Transactions (Details)

v2.4.0.6
Related Party Transactions (Details) (USD $)
In Millions, unless otherwise specified
0 Months Ended 3 Months Ended 12 Months Ended
Jan. 28, 2011
Mar. 31, 2013
Mar. 31, 2012
Dec. 31, 2012
Related Party Transaction [Line Items]        
Participations payable to TWC   $ 26.3   $ 23.9
Affiliated Entity
       
Related Party Transaction [Line Items]        
Related Party Transaction, Selling, General and Administrative Expenses from Transactions with Related Party   0 3.0  
Due to Affiliate, Current   0   1.0
Due to affiliate for income tax obligations       38.5
Ownership percentage interest sold to noncontrolling owners 25.00%      
Related party transaction, period 5 years      
Recognition of participation expense   17.0 16.3  
Affiliated Entity | Payment Guarantee
       
Related Party Transaction [Line Items]        
Maximum potential amount payable under guarantee 50.0