Geographic, Financial and Other Information - Schedule of Net Sales and Long-Lived Assets by Geographic Area (Detail) (USD $) In Millions, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012	Dec. 31, 2012
Revenues from External Customers and Long-Lived Assets [Line Items]
Net sales	$ 350.1	$ 357.1	$ 682.0	$ 687.8
Long-Lived Assets, net	487.9		487.9		480.2
United States [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Net sales	203.9	203.9	396.0	388.6
Percentage of net sales by geographic location (percent)	58.00%	57.00%	58.00%	56.00%
Long-Lived Assets, net	441.3		441.3		431.7
Percentage of long lived assets, net by geographic location (percent)	90.00%		90.00%		90.00%
Outside Of The United States [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Net sales	146.2	153.2	286.0	299.2
Percentage of net sales by geographic location (percent)	42.00%	43.00%	42.00%	44.00%
Long-Lived Assets, net	$ 46.6		$ 46.6		$ 48.5
Percentage of long lived assets, net by geographic location (percent)	10.00%		10.00%		10.00%