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Income Taxes (Income Before Income Taxes) (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2018
Dec. 31, 2017
Dec. 31, 2016
Income Tax Disclosure [Abstract]      
Undistributed Earnings of Foreign Subsidiaries $ 18,400    
Deferred Tax Liability Not Recognized, Amount of Unrecognized Deferred Tax Liability, Undistributed Earnings of Foreign Subsidiaries 600    
Income (Loss) from Continuing Operations before Equity Method Investments, Income Taxes, Extraordinary Items, Noncontrolling Interest [Abstract]      
U.S. income (loss) 24,320 $ 1,492 $ (6,128)
Foreign income 26,333 27,240 25,503
Income before income taxes $ 50,653 $ 28,732 $ 19,375