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Domestic and Foreign 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 Taxes [Line Items]      
U.S. $ (20,097) $ 112,210 $ 286,326
Foreign 370,154 289,862 139,513
Income from continuing operations before income taxes $ 350,057 $ 402,072 $ 425,839