Income Taxes - Components of Income/(Loss) from Continuing Operations Before Income Taxes (Detail) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Income Tax Expense Benefit [Line Items]
Domestic	$ 65,341	$ (31,636)	$ (115,078)
Foreign	109,927	125,426	152,652
Income from continuing operations before income taxes	$ 175,268	$ 93,790	$ 37,574