Provision For Restructuring (Schedule Of Restructuring Expense) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended						6 Months Ended		9 Months Ended		12 Months Ended
	Sep. 29, 2013	Jun. 30, 2013	Mar. 31, 2013	Sep. 23, 2012	Jun. 24, 2012	Mar. 25, 2012	Jun. 30, 2013	Jun. 24, 2012	Sep. 29, 2013	Sep. 23, 2012	Dec. 29, 2013	Dec. 30, 2012	Dec. 25, 2011
Restructuring Cost and Reserve [Line Items]
Asset impairments			$ 731				$ 731	$ 5,297	$ 731	$ 6,156	$ 1,211	$ 6,506	$ 7,843
Restructuring expenses	937	1,629	2,016	4,112	21,266	1,718	3,645	22,984	4,582	27,096	10,866	28,438	28,640
Global Restructuring Plan [Member]
Restructuring Cost and Reserve [Line Items]
Severance and other employee-related charges											7,421	16,945	11,115
Asset impairments											1,210	6,506	7,761
Other exit costs											2,389	5,084	519
Restructuring expenses											11,000
SG&A Restructuring Plan [Member]
Restructuring Cost and Reserve [Line Items]
Severance and other employee-related charges											(222)	(86)	7,015
Asset impairments											0	0	72
Other exit costs											68	64	2,203
Restructuring expenses											(200)
Manufacturing Restructuring Plan [Member]
Restructuring Cost and Reserve [Line Items]
Severance and other employee-related charges											0	0	(146)
Other exit costs											$ 0	$ (75)	$ 101