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Income Taxes (Schedule of Income (Loss) before Provision for Income Taxes) (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Income Tax Disclosure [Abstract]      
Domestic $ 49,357 $ 54,566 $ 66,858
Foreign 28,780 29,769 27,673
Income before income taxes $ 78,137 $ 84,335 $ 94,531