Schedule of Sales from External Customers and Long Lived Assets (Detail) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Revenues from External Customers and Long-Lived Assets [Line Items]
Total net sales	$ 1,954,258	$ 1,838,451	$ 1,513,073
Total long-lived assets - net	219,161	213,717	188,562
U.S.
Revenues from External Customers and Long-Lived Assets [Line Items]
Total net sales	963,137	857,990	766,067
Total long-lived assets - net	127,425	124,102	108,951
Europe
Revenues from External Customers and Long-Lived Assets [Line Items]
Total net sales	479,744	492,125	402,056
Total long-lived assets - net	64,137	63,433	68,756
Other Countries
Revenues from External Customers and Long-Lived Assets [Line Items]
Total net sales	511,377	488,336	344,950
Total long-lived assets - net	$ 27,599	$ 26,182	$ 10,855