Description Of Business And Basis Of Presentation (Exchange Rates) (Details)	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016	Dec. 31, 2016
Canadian Dollar (CAD) [Member]
Currency [Line Items]
Ending rates	1.2977		1.2977		1.3427
Average Rates	1.3451	1.2890	1.3343	1.3311
Average Rates % Change	(4.40%)		(0.20%)
Euros (EUR) [Member]
Currency [Line Items]
Ending rates	0.8761		0.8761		0.9476
Average Rates	0.9096	0.8856	0.9240	0.8961
Average Rates % Change	(2.70%)		(3.10%)
Polish Zloty (PLN) [Member]
Currency [Line Items]
Ending rates	3.7027		3.7027		4.2065
Average Rates	3.8354	3.8726	3.9459	3.9141
Average Rates % Change	1.00%		(0.80%)
British Pound (GBP) [Member]
Currency [Line Items]
Ending rates	0.7696		0.7696		0.8106
Average Rates	0.7822	0.6976	0.7947	0.6979
Average Rates % Change	(12.10%)		(13.90%)