Income Taxes (Schedule Of Deferred Tax Assets And Liabilities) (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2011	Dec. 31, 2010
Income Taxes [Abstract]
Reserves and accruals	$ 56,660	$ 37,137
Postretirement benefits other than pensions	5,888	5,913
Postretirement benefits - pensions	12,483	14,075
Tax loss and interest carryforwards	26,952	32,375
Foreign tax credit carryforwards	5,545	6,825
Other	10,130	11,252
Total deferred tax assets	117,658	107,577
Valuation allowance	(11,948)	(19,687)
LIFO inventory	(3,242)	(3,637)
Property, plant and equipment	(20,590)	(21,063)
Intangibles	(115,103)	(89,255)
Other	(7,588)	(1,464)
Total deferred tax liabilities	(146,523)	(115,419)
Net deferred income tax liability	$ (40,813)	$ (27,529)