v2.4.0.8
Fair Value of Assets Measured on Recurring and Nonrecurring Basis (Detail) (USD $)
In Thousands, unless otherwise specified
 12 Months Ended
Mar. 31, 2013
Recurring Items
Dec. 31, 2012
Recurring Items
Dec. 31, 2012
Nonrecurring Items
Mar. 31, 2013
Quoted Prices in Activated Markets for Identical Assets (Level 1)
Recurring Items
Dec. 31, 2012
Quoted Prices in Activated Markets for Identical Assets (Level 1)
Recurring Items
Dec. 31, 2012
Quoted Prices in Activated Markets for Identical Assets (Level 1)
Nonrecurring Items
Mar. 31, 2013
Significant Other Observable Inputs (Level 2)
Recurring Items
Dec. 31, 2012
Significant Other Observable Inputs (Level 2)
Recurring Items
Dec. 31, 2012
Significant Other Observable Inputs (Level 2)
Nonrecurring Items
Mar. 31, 2013
Unobservable Inputs (Level 3)
Recurring Items
Dec. 31, 2012
Unobservable Inputs (Level 3)
Recurring Items
Dec. 31, 2012
Unobservable Inputs (Level 3)
Nonrecurring Items
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]                        
Cash and cash equivalents $ 44,012 $ 84,729   $ 44,012 $ 84,729   $ 0 $ 0   $ 0 $ 0  
Total loss Trademarks and Customer Relationship     45,052 [1]                  
Total loss Goodwill     327,847 [2]                  
Indefinite lived intangible assets, Fair value     174,242 [1]     0 [1]     0 [1]     174,242 [1]
Goodwill, Fair value     $ 213,629 [2]     $ 0 [2]     $ 0 [2]     $ 213,629 [2]
[1] In 2012 trademarks and customer relationships with a carrying amount of $219.3 million were written down to their fair value of $174.2 million, resulting in an impairment charge of $45.1 million, which was included in earnings for the period.
[2] In 2012 goodwill with a carrying amount of $ 541.4 million was written down to its fair value of $213.6 million, resulting in an impairment charge of $327.8 million, which was included in earnings for the period.