Common Stock Purchase Programs Common Stock Purchase Programs Narrative (Details) - USD ($) $ in Thousands	1 Months Ended	3 Months Ended	9 Months Ended	12 Months Ended
	Mar. 31, 2013	Mar. 27, 2016	Sep. 28, 2014	Dec. 31, 2015	Dec. 27, 2015	Dec. 31, 2014	Sep. 28, 2014	Dec. 31, 2013	Oct. 26, 2014
Entity Information [Line Items]
Stock Repurchased and Retired During Period, Shares		(585,970)	(1,089,560)		(1,056,954)
Common Shares Purchased and Retired Under Repurchase Program, Total	1,510,759
Payments for Repurchase of Common Stock		$ (10,300)	$ 21,790	$ 19,638	$ (19,600)	$ 21,790	$ 30,000	$ 8,133
2013 Program [Member]
Entity Information [Line Items]
Stock Repurchase Program, Authorized Amount	$ 30,000
2014 Program [Member]
Entity Information [Line Items]
Stock Repurchase Program, Authorized Amount		$ 50,000							$ 30,000