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Income Taxes (Components Of Pre-Tax Income (Loss)) (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2016
Dec. 31, 2015
Dec. 31, 2014
Income Tax Disclosure [Abstract]      
Domestic $ (16,766) $ 12,965 $ 26,229
Foreign 26,446 9,463 37,032
INCOME BEFORE INCOME TAXES $ 9,680 $ 22,428 $ 63,261