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Taxes (Details 1) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2016
Dec. 31, 2015
Dec. 31, 2014
Income Tax Disclosure [Abstract]      
Earnings Before Taxes, Domestic $ 37,363 $ 20,992 $ 33,157
Earnings Before Taxes, Foreign 466,830 442,432 411,847
Earnings Before Taxes $ 504,193 $ 463,424 $ 445,004