Provision For Restructuring (Narrative) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 27, 2015	Sep. 28, 2014	Sep. 27, 2015	Sep. 28, 2014
Restructuring Cost and Reserve [Line Items]
Restructuring expense	$ (5)	$ 459	$ 1,583	$ 2,692
Profit Enhancement Plan
Restructuring Cost and Reserve [Line Items]
Restructuring expense			1,700
Restructuring related cost incurred to date	7,000		$ 7,000
Profit Enhancement Plan | Minimum
Restructuring Cost and Reserve [Line Items]
Termination benefits, expected payment period			1 month
Profit Enhancement Plan | Maximum
Restructuring Cost and Reserve [Line Items]
Termination benefits, expected payment period			24 months
Profit Enhancement Plan | Other exit costs
Restructuring Cost and Reserve [Line Items]
Restructuring expense			$ 200
Global Restructuring Plan (including LEAN)
Restructuring Cost and Reserve [Line Items]
Restructuring expense			(100)
Restructuring related cost incurred to date	$ 60,000		$ 60,000
Global Restructuring Plan (including LEAN) | Minimum
Restructuring Cost and Reserve [Line Items]
Termination benefits, expected payment period			1 month
Global Restructuring Plan (including LEAN) | Maximum
Restructuring Cost and Reserve [Line Items]
Termination benefits, expected payment period			24 months