Changes In Shareholders' Equity (Schedule Of Accumulated Other Comprehensive Income) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Apr. 01, 2012	Mar. 27, 2011
Divestiture of Marine		$ 8,427
Discontinued operations		(37)
Cash Flow Hedges [Member]
Beginning balance, accumulated other comprehensive income (loss), net of tax	(7,257)	(15,262)
Current-period other comprehensive income	2,460	1,764
Discontinued operations		142
Ending balance, accumulated other comprehensive income (loss), net of tax	(4,797)	(13,356)
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	978	4,916
Divestiture of Marine		8,427
Discontinued operations		(37)
Ending balance, accumulated other comprehensive income (loss), net of tax	(133,570)	(82,440)
Foreign Currency Translation Adjustment [Member]
Beginning balance, accumulated other comprehensive income (loss), net of tax	(17,548)	59,128
Current-period other comprehensive income	30,605	48,230
Divestiture of Marine		(33,424)
Discontinued operations		2,072
Ending balance, accumulated other comprehensive income (loss), net of tax	13,057	76,006
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	34,043	54,910
Divestiture of Marine		(24,997)
Discontinued operations		2,177
Ending balance, accumulated other comprehensive income (loss), net of tax	$ (125,310)	$ (19,790)