Goodwill And Other Intangible Assets (Schedule Of Components Of Goodwill) (Details) (USD $) In Thousands, unless otherwise specified	Mar. 25, 2012	Dec. 25, 2011		Dec. 26, 2010
Goodwill [Line Items]
Gross Amount	$ 430,679	$ 426,138
Accumulated Impairment Losses	140,700	140,035
Goodwill, Net	289,979	286,103	[1]	231,325
Shrink Management Solutions [Member]
Goodwill [Line Items]
Gross Amount	213,000	213,836
Accumulated Impairment Losses	50,163	52,025
Goodwill, Net	162,837	161,811		165,324
Apparel Labeling Solutions [Member]
Goodwill [Line Items]
Gross Amount	83,553	81,662
Accumulated Impairment Losses	19,208	19,078
Goodwill, Net	64,345	62,584		3,915
Retail Merchandising Solutions [Member]
Goodwill [Line Items]
Gross Amount	134,126	130,640
Accumulated Impairment Losses	71,329	68,932
Goodwill, Net	$ 62,797	$ 61,708		$ 62,086

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