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Income Taxes (Details 5) - USD ($)
$ / shares in Units, $ in Thousands
12 Months Ended
Dec. 31, 2016
Dec. 31, 2015
Dec. 31, 2014
Income Tax Holiday [Line Items]      
Income taxes paid globally, net of refunds $ 40,842 $ 31,895 $ 33,146
Singapore and China [Member]      
Income Tax Holiday [Line Items]      
Tax benefits $ 2,245 $ 5,000 $ 4,513
Tax benefits (in dollars per share) $ 0.04 $ 0.09 $ 0.08