Net Sales Based on Location of External Customers by Geographic Region (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2014		Mar. 31, 2013
Segment Reporting Information [Line Items]
Net sales	$ 799,300		$ 740,300
United States
Segment Reporting Information [Line Items]
Net sales	551,400		498,500
Europe
Segment Reporting Information [Line Items]
Net sales	120,100	[1]	114,100	[1]
Japan
Segment Reporting Information [Line Items]
Net sales	38,900		40,000
Other
Segment Reporting Information [Line Items]
Net sales	$ 88,900	[1]	$ 87,700	[1]

[1] Beginning in 2014, certain emerging markets in Europe are included in the "other" geographic region. Prior year amounts have been reclassified to conform to the current year presentation.