Reorganization and Realignment Costs Summary (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jul. 02, 2017	Jul. 03, 2016	Jul. 02, 2017	Jul. 03, 2016
Restructuring Cost and Reserve [Line Items]
Reorganization and realignment costs	$ 17,699	$ 2,487	$ 17,880	$ 5,737
System Optimization [Member]
Restructuring Cost and Reserve [Line Items]
Reorganization and realignment costs	454	2,081	635	4,804
G&A Realignment – November 2014 Plan [Member]
Restructuring Cost and Reserve [Line Items]
Reorganization and realignment costs	0	406	$ 0	933
G&A Realignment – May 2017 Plan [Member]
Restructuring Cost and Reserve [Line Items]
Reorganization and realignment costs	$ 17,245	$ 0		$ 0