Components of Provision for Income Taxes (Detail) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Provision For Income Taxes [Line Items]
U.S. federal	$ 42,450	$ 69,164	$ 31,459
U.S. state and local	9,211	5,283	2,392
Non-U.S.	47,414	41,084	24,646
U.S. federal	13,499	(3,048)	1,680
U.S. state and local	548	(825)	1,518
Non-U.S.	(16,053)	(4,219)	(4,798)
Provision for income taxes	$ 97,069	$ 107,439	$ 56,897