Segment Information - Additional Information (Detail) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Segment Reporting [Abstract]
Number of segments	2
US
Revenues from External Customers and Long-Lived Assets [Line Items]
Net sales	$ 159.0	$ 158.2
Foreign Countries
Revenues from External Customers and Long-Lived Assets [Line Items]
Net sales	$ 611.2	$ 569.6
Sales [Member] | Foreign Countries
Revenues from External Customers and Long-Lived Assets [Line Items]
Maximum percentage of total consolidated net sales attributed to any non-U.S. country	8.00%