Goodwill (Narrative) (Detail) (USD $)	12 Months Ended
Dec. 25, 2011	Dec. 26, 2010	Dec. 27, 2009
Goodwill [Line Items]
Goodwill impairment loss	$ 0	$ 0	$ 0

Loss recognized during the period that results from the write-down of goodwill after comparing the implied fair value of reporting unit goodwill with the carrying amount of that goodwill. Goodwill is assessed at least annually for impairment.

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+ Details