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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 |

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