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Income Taxes (Schedule of Income (loss) before Provision for Income Taxes) (Details) (USD $)
In Thousands, unless otherwise specified
12 Months Ended
Dec. 31, 2013
Dec. 31, 2012
Dec. 31, 2011
Income Tax Disclosure [Abstract]      
Domestic $ 35,146 $ 29,390 $ 28,109
Foreign 16,242 14,056 20,020
Income before income taxes $ 51,388 $ 43,446 $ 48,129