Goodwill (Tables)

9 Months Ended

Sep. 30, 2013

Goodwill.

Schedule of changes in the carrying amount of goodwill

	(in millions)
Balance as of December 31, 2012	$	1,314.6
Acquisition	398.0
Effect of foreign currency translation	(2.6		)
Balance as of September 30, 2013	$	1,710.0