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Repurchase of Common Stock (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Oct. 03, 2015	Sep. 27, 2014	Oct. 03, 2015	Sep. 27, 2014
Repurchase of Common Stock [Abstract]
Amount repurchased under Board-approved share repurchase program	$ 18,530	$ 10,010	$ 68,557	$ 30,032
Stock repurchased through tax withholding on restricted stock	140	0	1,743	1,448
Total amount repurchased	18,670	$ 10,010	70,300	$ 31,480
Remaining Authorized Amount, Stock Repurchase Program	$ 166,000		$ 166,000