Schedule Of Quarterly Financial Information (Parenthetical) (Detail) (USD $) In Millions, except Per Share data, unless otherwise specified	3 Months Ended																12 Months Ended
	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2012		Sep. 30, 2012		Jun. 30, 2012		Mar. 31, 2012		Dec. 31, 2011	Sep. 30, 2011	Jun. 30, 2011	Mar. 31, 2011	Dec. 31, 2013	Dec. 31, 2012		Dec. 31, 2011
Schedule Of Quarterly Financial Information [Line Items]
Net Sales	$ 822.6	$ 804.8	$ 787.6	$ 779.3	$ 809.7	[1]	$ 725.2	[1]	$ 696.4	[1]	$ 690.6	[1]	$ 731.1	$ 701.0	$ 674.9	$ 642.3	$ 3,194.3	$ 2,921.9	[1]	$ 2,749.3
Deferred tax valuation charge													13
Deferred tax valuation charge, per share													$ 0.09
Impact on net sales due to change in calendar periods													14.3
Trade names
Schedule Of Quarterly Financial Information [Line Items]
Impairment charges	6.5
L'IL CRITTERS and VITAFUSION Gummy Vitamin Dietary Supplement | Business Acquisitions
Schedule Of Quarterly Financial Information [Line Items]
Net Sales					$ 70.0

[1] The fourth quarter of 2012 Net Sales includes approximately $70 associated with the acquisition of the L'IL CRITTERS and VITAFUSION gummy vitamin dietary supplement business.