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Income Taxes (Narrative) (Details) - USD ($)
$ in Thousands
3 Months Ended
Apr. 03, 2016
Mar. 29, 2015
Income Tax Disclosure [Abstract]    
Income tax provision $ 8,893 $ 10,015
Provision for income taxes (in percentage) 34.90% 55.60%
Possible reduction in liabilities for uncertain tax positions $ 600