Changes In Shareholders' Equity (Schedule Of Accumulated Other Comprehensive Income) (Detail) (USD $) In Thousands, unless otherwise specified	9 Months Ended
	Sep. 30, 2012	Sep. 25, 2011
Cash Flow Hedges [Member]
Beginning balance, accumulated other comprehensive income (loss), net of tax	$ (7,257)	$ (15,262)
Current-period other comprehensive income (loss)	7,012	5,508
Ending balance, accumulated other comprehensive income (loss), net of tax	(245)	(9,754)
Pension and Other Postretirement Benefit Plans [Member]
Beginning balance, accumulated other comprehensive income (loss), net of tax	(134,548)	(95,746)
Current-period other comprehensive income (loss)	3,208	6,423
Divestiture of Marine		8,427
Discontinued operations		1
Ending balance, accumulated other comprehensive income (loss), net of tax	(131,340)	(80,895)
Foreign Currency Translation Adjustment [Member]
Beginning balance, accumulated other comprehensive income (loss), net of tax	(17,548)	59,128
Current-period other comprehensive income (loss)	10,305	11,866
Divestiture of Marine		(33,424)
Discontinued operations		2,154
Ending balance, accumulated other comprehensive income (loss), net of tax	(7,243)	39,724
Accumulated Other Comprehensive Income (Loss) [Member]
Beginning balance, accumulated other comprehensive income (loss), net of tax	(159,353)	(51,880)
Current-period other comprehensive income (loss)	20,525	23,797
Divestiture of Marine		(24,997)
Discontinued operations		2,155
Ending balance, accumulated other comprehensive income (loss), net of tax	$ (138,828)	$ (50,925)