Provision For Restructuring (Schedule Of Restructuring Expense) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 30, 2012	Dec. 25, 2011	Dec. 26, 2010
Restructuring Cost and Reserve [Line Items]
Asset impairments	$ 6,506	$ 7,843	$ 0
Total	28,422	28,640	8,211
Global Restructuring Plan [Member]
Restructuring Cost and Reserve [Line Items]
Severance and other employee-related charges	16,945	11,115	0
Asset impairments	6,506	7,761	0
Other exit costs	5,068	519	0
Total	28,500
SG&A Restructuring Plan [Member]
Restructuring Cost and Reserve [Line Items]
Severance and other employee-related charges	(86)	7,015	6,993
Asset impairments	0	72	0
Other exit costs	64	2,203	0
Total	0
Manufacturing Restructuring Plan [Member]
Restructuring Cost and Reserve [Line Items]
Severance and other employee-related charges	0	(146)	641
Other exit costs	(75)	101	577
Total	$ (100)