Description Of Business And Basis Of Presentation (Average Exchange Rates) (Details)	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Canadian Dollar (CAD) [Member]
Currency [Line Items]
Average Rates	1.3205	1.3068	1.3292	1.2874
Average Rates % Change	(1.00%)		(3.20%)
Euros (EUR) [Member]
Currency [Line Items]
Average Rates	0.8997	0.8601	0.8901	0.8377
Average Rates % Change	(4.60%)		(6.30%)
Polish Zloty (PLN) [Member]
Currency [Line Items]
Average Rates	3.8850	3.6981	3.8270	3.5581
Average Rates % Change	(5.10%)		(7.60%)
British Pound (GBP) [Member]
Currency [Line Items]
Average Rates	0.8111	0.7676	0.7859	0.7405
Average Rates % Change	(5.70%)		(6.10%)