Income Loss Before Income Taxes (Detail) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Schedule of Income Before Income Tax [Line Items]
U.S.	$ 175,927	$ 202,476	$ 104,036
Non-U.S.	185,635	184,505	127,815
Income before income taxes	$ 361,562	$ 386,981	$ 231,851