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Net Income Per Share (Details) - USD ($)
$ / shares in Units, shares in Thousands, $ in Thousands
3 Months Ended
Mar. 29, 2017
Mar. 30, 2016
Earnings Per Share [Abstract]    
Net income $ 8,373 $ 9,954
Weighted average shares outstanding - basic (in shares) 71,004 77,060
Effect of dilutive share-based compensation awards 2,237 1,817
Weighted average shares outstanding - diluted (in shares) 73,241 78,877
Basic net income per share $ 0.12 $ 0.13
Diluted net income per share $ 0.11 $ 0.13
Antidilutive share-based compensation awards (in shares) 580 0