Provision For Restructuring (Schedule Of Restructuring Expense) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 23, 2012	Sep. 25, 2011	Sep. 23, 2012	Sep. 25, 2011
Restructuring Cost and Reserve [Line Items]
Asset impairments			$ 6,156	$ 7,479
Total	4,112	17,279	27,096	20,371
Global Restructuring Plan (including LEAN) [Member]
Restructuring Cost and Reserve [Line Items]
Severance and other employee-related charges	2,442	5,972	16,661	5,972
Asset impairments	859	7,479	6,156	7,479
Other exit costs	1,174	0	3,680	0
SG&A Restructuring Plan [Member]
Restructuring Cost and Reserve [Line Items]
Severance and other employee-related charges	(288)	3,661	608	6,120
Other exit costs	0	216	66	826
Manufacturing Restructuring Plan [Member]
Restructuring Cost and Reserve [Line Items]
Severance and other employee-related charges	0	(49)	0	(90)
Other exit costs	$ (75)	$ 0	$ (75)	$ 64