Repurchase of Common Stock (Details) - USD ($) $ in Thousands	3 Months Ended
	Apr. 01, 2017	Apr. 02, 2016
Repurchase of Common Stock [Abstract]
Amount repurchased under Board-approved share repurchase program	$ 50,000	$ 50,000
Amount repurchased in connection with the vesting of employee restricted stock grants	4,794	1,240
Total amount repurchased	54,794	$ 51,240
Stock Repurchase Program, Remaining Authorized Repurchase Amount	$ 195,000