Business Segment Information (Schedule Of Reconciliation Of Segment Operating Profit To Income From Continuing Operations Before Interest) (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended				6 Months Ended
	Jul. 01, 2012		Jun. 26, 2011		Jul. 01, 2012		Apr. 01, 2012	Jun. 26, 2011
Segment operating profit	$ 64,711	[1]	$ 59,058	[1]	$ 125,136	[1]		$ 108,364	[1]
Goodwill impairment					(332,128)		(332,000)
Restructuring and other impairment charges	(321)		(3,176)		1,004			(3,771)
Gain on sales of businesses and assets	332				332
Income (loss) from continuing operations before interest, loss on extinguishments of debt and taxes	$ 64,722		$ 55,882		$ (205,656)			$ 104,593

[1] Segment operating profit includes a segment's net revenues from external customers reduced by its cost of goods sold, selling, general and administrative expenses, and an allocation of corporate expenses. Segment operating profit excludes goodwill impairment charges, restructuring and impairment charges, gain on sales of business and assets, interest income and expense, loss on extinguishment of debt and taxes on income.