Description Of Business And Basis Of Presentation (Average Exchange Rates) (Details)	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Canadian Dollar (CAD) [Member]
Currency [Line Items]
Average Rates	1.3376	1.2912	1.3335	1.2778
Average Rates % Change	(3.60%)		(4.40%)
Euros (EUR) [Member]
Currency [Line Items]
Average Rates	0.8898	0.8393	0.8853	0.8264
Average Rates % Change	(6.00%)		(7.10%)
Polish Zloty (PLN) [Member]
Currency [Line Items]
Average Rates	3.8090	3.5769	3.7980	3.4881
Average Rates % Change	(6.50%)		(8.90%)
British Pound (GBP) [Member]
Currency [Line Items]
Average Rates	0.7782	0.7353	0.7732	0.7270
Average Rates % Change	(5.80%)		(6.40%)