Miscellaneous Expense (Income), Net (Components Of Miscellaneous Expense (Income), Net) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Miscellaneous Expense (Income), Net [Abstract]
Pension expense (income)	$ 14,845	$ 14,142	$ (7,474)
Argentina export tax matter	217	507
Argentina export tax matter			(3,549)
Gain on change of control		(2,586)	(127)
Modification of debt		1,046
Dividends/royalty from affiliates, net	(529)	(720)	(993)
Loss (gain) on sale of assets	(1,412)	(514)	747
Contingent consideration payment (adjustment)	(2,723)	(1,637)	1,721
Bank fees	1,798	1,656	1,646
Other, net	(474)	180	596
Total Miscellaneous expense (income), net	$ 11,722	$ 12,074	$ (7,433)