Goodwill And Other Intangible Assets (Schedule Of Components Of Goodwill) (Details) (USD $) In Thousands, unless otherwise specified	Sep. 23, 2012		Dec. 25, 2011		Dec. 26, 2010
Goodwill [Line Items]
Gross Amount	$ 426,207		$ 426,138
Accumulated Impairment Losses	203,249		140,035
Goodwill, Net	222,958	[1]	286,103	[1]	231,325
Shrink Management Solutions [Member]
Goodwill [Line Items]
Gross Amount	211,047		213,836
Accumulated Impairment Losses	49,558		52,025
Goodwill, Net	161,489		161,811		165,324
Apparel Labeling Solutions [Member]
Goodwill [Line Items]
Gross Amount	83,542		81,662
Accumulated Impairment Losses	83,542		19,078
Goodwill, Net	0		62,584		3,915
Retail Merchandising Solutions [Member]
Goodwill [Line Items]
Gross Amount	131,618		130,640
Accumulated Impairment Losses	70,149		68,932
Goodwill, Net	$ 61,469		$ 61,708		$ 62,086

[1] Derived from the Company’s audited Consolidated Financial Statements at December 25, 2011.