Provision For Restructuring (Narrative) (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 29, 2015	Mar. 30, 2014
Restructuring Cost and Reserve [Line Items]
Restructuring expenses	$ 1,304	$ 1,892
Profit Enhancement Plan
Restructuring Cost and Reserve [Line Items]
Restructuring expenses	1,400
Restructuring related cost incurred to date	$ 6,700
Profit Enhancement Plan | Maximum
Restructuring Cost and Reserve [Line Items]
Termination benefits, expected payment period	24 months
Profit Enhancement Plan | Minimum
Restructuring Cost and Reserve [Line Items]
Termination benefits, expected payment period	1 month
Global Restructuring Plan (including LEAN)
Restructuring Cost and Reserve [Line Items]
Restructuring expenses	$ (100)
Restructuring related cost incurred to date	$ 60,000
Global Restructuring Plan (including LEAN) | Maximum
Restructuring Cost and Reserve [Line Items]
Termination benefits, expected payment period	24 months
Global Restructuring Plan (including LEAN) | Minimum
Restructuring Cost and Reserve [Line Items]
Termination benefits, expected payment period	1 month
Global Restructuring Plan (including LEAN) | Other exit costs
Restructuring Cost and Reserve [Line Items]
Restructuring expenses	$ 47