Basis Of Presentation (Narrative) (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended	9 Months Ended
Apr. 01, 2012 Segment	Sep. 30, 2012
Segment Reporting Information [Line Items]
Number of reporting segments	4
Impairment of goodwill	$ 332,000	$ 332,128

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