Common Stock Purchase Programs Common Stock Purchase Programs Narrative (Details) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Mar. 27, 2016	Dec. 25, 2016	Dec. 31, 2015	Dec. 27, 2015	Dec. 31, 2014	Oct. 26, 2014
Entity Information [Line Items]
Stock Repurchased and Retired During Period, Shares	(585,970)			(1,056,954)
Payments for Repurchase of Common Stock	$ 10,265	$ 20,719	$ 19,638	$ 19,600	$ 21,790
2014 Program [Member]
Entity Information [Line Items]
Stock Repurchase Program, Authorized Amount	$ 50,000					$ 30,000
2016 Repurchase Program [Member]
Entity Information [Line Items]
Stock Repurchased and Retired During Period, Shares		(454,718)
Payments for Repurchase of Common Stock		$ 10,400