Description Of Business And Basis Of Presentation (Average Exchange Rates) (Details)	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Canadian Dollar (CAD) [Member]
Currency [Line Items]
Average Rates	1.3863	1.3376	1.3646	1.3335
Average Rates % Change	(3.60%)		(2.30%)
Euros (EUR) [Member]
Currency [Line Items]
Average Rates	0.9085	0.8898	0.9080	0.8853
Average Rates % Change	(2.10%)		(2.60%)
Polish Zloty (PLN) [Member]
Currency [Line Items]
Average Rates	4.0959	3.8090	4.0090	3.7980
Average Rates % Change	(7.50%)		(5.60%)
British Pound (GBP) [Member]
Currency [Line Items]
Average Rates	0.8060	0.7782	0.7938	0.7732
Average Rates % Change	(3.60%)		(2.70%)