Annual report pursuant to Section 13 and 15(d)

Income Taxes - Additional Information (Detail)

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Income Taxes - Additional Information (Detail) (USD $)
In Thousands, unless otherwise specified
12 Months Ended
Dec. 31, 2012
Dec. 31, 2011
Income Taxes [Line Items]    
Undistributed foreign earnings $ 339,000  
Gross unrecognized tax benefits, including interest and penalties 34,475 22,411
Unrecognized tax benefit that if recognized would impact effective tax rate 30,085 16,274
Accrued for interest and penalties $ 4,576 $ 3,751