Other Operating Expenses/(Income) (Schedule Of Other Operating Expenses/(Income)) (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Total other operating expenses	$ 242	$ 6,353
Loss On Disposal Of Fixed Assets [Member]
Total other operating expenses	$ 242	353
Litigation Settlement [Member]
Total other operating expenses		$ 6,000