Pension And Other Liabilities (Schedule Of Reconciliation Of The Lease Make-Good Provision) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021
Pension And Other Liabilities [Abstract]
Lease make-good provision, Beginning balance	$ 7,766	$ 7,408
Liabilities incurred during the year		288
Liabilities settled during the year	(67)
Liabilities remeasured during the year	(1,567)
Accretion expense	293	343
Effect of changes in foreign currency	(294)	(273)
Lease make-good provision, Ending balance	$ 6,131	$ 7,766