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Stock-Based Compensation (Other Information) (Details) - USD ($)
$ / shares in Units, $ in Thousands
12 Months Ended
Dec. 30, 2017
Dec. 31, 2016
Jan. 02, 2016
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]      
Total fair value of shares vested $ 8,057 $ 7,206 $ 5,554
Total intrinsic value of options exercised 7,270 11,985 6,412
Cash received from exercise of stock options 11,418 18,609 9,145
Tax benefit realized from exercise of stock options $ 2,423 $ 4,142 $ 2,111
Weighted-average grant-date fair value of option granted (in dollars per share) $ 14.41 $ 8.80 $ 18.45