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Income Taxes (Details) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2017
Oct. 01, 2016
Sep. 30, 2017
Oct. 01, 2016
Income Tax Disclosure [Abstract]        
Income before income taxes $ 55,955 $ 50,649 $ 83,541 $ 113,333
Income taxes $ 18,624 $ 16,837 $ 27,573 $ 38,652
Effective tax rate 33.30% 33.20% 33.00% 34.10%
Excess tax benefit due to adoption of ASU 2016-09, amount $ 0   $ 1,000