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Income Taxes - Components of Earnings Before Income Taxes (Detail) (USD $)
In Thousands, unless otherwise specified
12 Months Ended
Dec. 31, 2013
Dec. 31, 2012
Dec. 31, 2011
Schedule of Components of Income Before Income Tax Expense (Benefit) [Line Items]      
United States $ 192,850 $ 179,483 $ 212,308
Foreign 379,746 370,910 425,720
Earnings before income taxes $ 572,596 $ 550,393 $ 638,028