Description Of Business And Basis Of Presentation (Average Exchange Rates) (Details)	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Canadian Dollar (CAD) [Member]
Currency [Line Items]
Average Rates	1.3429	1.3294
Average Rates % Change	(1.00%)
Euros (EUR) [Member]
Currency [Line Items]
Average Rates	0.9074	0.8808
Average Rates % Change	(3.00%)
Polish Zloty (PLN) [Member]
Currency [Line Items]
Average Rates	3.9221	3.7869
Average Rates % Change	(3.60%)
British Pound (GBP) [Member]
Currency [Line Items]
Average Rates	0.7816	0.7683
Average Rates % Change	(1.70%)