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Components of Income Before Income Taxes From Operations (Detail) (USD $)
In Thousands, unless otherwise specified
12 Months Ended
Dec. 31, 2011
Dec. 31, 2010
Dec. 31, 2009
Income Taxes [Line Items]      
United States $ 7,041 $ 104,424 $ 99,009
Foreign 249,070 253,232 264,347
Income before income taxes $ 256,111 $ 357,656 $ 363,356