Provision For Restructuring (Schedule Of Restructuring Expense) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 29, 2013	Sep. 23, 2012	Sep. 29, 2013	Sep. 23, 2012
Restructuring Cost and Reserve [Line Items]
Asset impairments			$ 731	$ 6,156
Total	937	4,112	4,582	27,096
Global Restructuring Plan (including LEAN) [Member]
Restructuring Cost and Reserve [Line Items]
Severance and other employee-related charges	658	2,442	1,943	16,661
Asset impairments	0	859	731	6,156
Other exit costs	323	1,174	1,940	3,680
Total			4,600
SG&A Restructuring Plan [Member]
Restructuring Cost and Reserve [Line Items]
Severance and other employee-related charges	(67)	(288)	(82)	608
Other exit costs	23	0	50	66
Total			(32)
Manufacturing Restructuring Plan [Member]
Restructuring Cost and Reserve [Line Items]
Other exit costs	$ 0	$ (75)	$ 0	$ (75)