Carrying Amount of Goodwill (Detail) (USD $) In Millions, unless otherwise specified	6 Months Ended
	Jun. 30, 2013
Goodwill [Line Items]
Balance December 31, 2012	$ 1,213.8
Acquisition purchase price allocation adjustment	8.6
Balance June 30, 2013	1,222.4
Consumer Domestic
Goodwill [Line Items]
Balance December 31, 2012	1,146.4
Acquisition purchase price allocation adjustment	8.6
Balance June 30, 2013	1,155.0
Consumer International
Goodwill [Line Items]
Balance December 31, 2012	47.2
Acquisition purchase price allocation adjustment	0
Balance June 30, 2013	47.2
SPD
Goodwill [Line Items]
Balance December 31, 2012	20.2
Acquisition purchase price allocation adjustment	0
Balance June 30, 2013	$ 20.2