Net Income Per Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 26, 2019	Jun. 27, 2018	Jun. 26, 2019	Jun. 27, 2018
Earnings Per Share [Abstract]
Net income	$ 34,239	$ 11,626	$ 49,729	$ 21,385
Weighted average shares outstanding - basic (in shares)	60,290	63,644	60,970	64,038
Effect of dilutive share-based compensation awards	1,792	2,484	1,967	2,514
Weighted average shares outstanding - diluted (in shares)	62,082	66,128	62,937	66,552
Basic net income per share	$ 0.57	$ 0.18	$ 0.82	$ 0.33
Diluted net income per share	$ 0.55	$ 0.18	$ 0.79	$ 0.32
Antidilutive share-based compensation awards (in shares)	630	1	630	1