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Goodwill (Tables)
6 Months Ended
Jun. 30, 2013
Goodwill.  
Schedule of changes in the carrying amount of goodwill

 

 

 

(in millions)

 

Balance as of December 31, 2012

 

 

$

1,314.6

 

Acquisition

 

 

349.1

 

Effect of foreign currency translation

 

 

(4.9

)

Balance as of June 30, 2013

 

 

$

1,658.8