Description Of Business And Basis Of Presentation (Average Exchange Rates) (Details)	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Canadian Dollar (CAD) [Member]
Currency [Line Items]
Average Rates	1.3325	1.3205	1.3539	1.3292
Average Rates % Change	(0.90%)		(1.90%)
Euros (EUR) [Member]
Currency [Line Items]
Average Rates	0.8557	0.8997	0.8905	0.8901
Average Rates % Change	4.90%
Polish Zloty (PLN) [Member]
Currency [Line Items]
Average Rates	3.8013	3.8850	3.9397	3.8270
Average Rates % Change	2.20%		(2.90%)
British Pound (GBP) [Member]
Currency [Line Items]
Average Rates	0.7745	0.8111	0.7874	0.7859
Average Rates % Change	4.50%		(0.20%)