Goodwill and Intangible Assets, Net - Changes in Balance of Goodwill (Detail) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012
Goodwill [Roll Forward]
Beginning Balance	$ 217.8	$ 194.7
Goodwill acquired	255.7	23.1
Foreign currency translation adjustment	1.2
Ending Balance	474.7	217.8
Consumer
Goodwill [Roll Forward]
Beginning Balance	217.8	194.7
Goodwill acquired	0	23.1
Foreign currency translation adjustment	0.1
Ending Balance	217.9	217.8
Professional
Goodwill [Roll Forward]
Beginning Balance	0	0
Goodwill acquired	255.7	0
Foreign currency translation adjustment	1.1
Ending Balance	$ 256.8	$ 0