Reorganization and Realignment Costs Summary (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Oct. 02, 2016	Sep. 27, 2015	Oct. 02, 2016	Sep. 27, 2015
Restructuring Cost and Reserve [Line Items]
Reorganization and realignment costs	$ 2,129	$ 5,754	$ 7,866	$ 16,646
General and Administrative Realignment and Reinvestment [Member]
Restructuring Cost and Reserve [Line Items]
Reorganization and realignment costs	38	1,461	971	9,996
System Optimization [Member]
Restructuring Cost and Reserve [Line Items]
Reorganization and realignment costs	$ 2,091	$ 4,293	$ 6,895	$ 6,650