Income Taxes - Schedule of Income Tax Provision (Parenthetical) (Detail) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Income Tax [Line Items]
Foreign, Current	$ 197,335	$ 78,922	$ 103,451
Total deferred income tax provision	(15,878)	25,357	(13,301)
Spanish tax charges [Member]
Income Tax [Line Items]
Foreign, Current	72,000
Non-Resident [Member]
Income Tax [Line Items]
Foreign, Current	12,000
Foreign subsidiaries [Member]
Income Tax [Line Items]
Total deferred income tax provision	$ 11,000