Subsequent Events Subsequent Event (Details) - USD ($) $ / shares in Units, $ in Thousands, shares in Millions	3 Months Ended		12 Months Ended
	Mar. 29, 2017	Feb. 06, 2017	Dec. 28, 2016	Dec. 30, 2015	Dec. 31, 2014
Subsequent Event [Line Items]
Purchase of treasury stock (in shares)			4.6	8.5	5.3
Purchase of treasury stock			$ 51,771	$ 92,676	$ 35,990
November 2016 Accelerated Share Repurchase [Member]
Subsequent Event [Line Items]
Purchase of treasury stock (in shares)			1.5
Purchase of treasury stock			$ 18,100
Remaining shares to be repurchased (value in US$)			$ 6,900
November 2016 Accelerated Share Repurchase [Member] | Subsequent Event [Member]
Subsequent Event [Line Items]
Purchase of treasury stock (in shares)	0.5	2.0
Volume-weighted average price		$ 12.36
Purchase of treasury stock	$ 6,900