Net Sales Based on Location of External Customers by Geographic Region (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2012	Sep. 30, 2011
Segment Reporting Information [Line Items]
Net sales	$ 722,900	$ 719,200	$ 2,195,500	$ 2,144,500
United States
Segment Reporting Information [Line Items]
Net sales	483,400	486,500	1,469,600	1,453,500
Europe
Segment Reporting Information [Line Items]
Net sales	115,600	124,200	369,300	380,300
Japan
Segment Reporting Information [Line Items]
Net sales	41,600	36,100	122,200	103,900
Other
Segment Reporting Information [Line Items]
Net sales	$ 82,300	$ 72,400	$ 234,400	$ 206,800