Restructuring And Optimization Programs (Summary Of Accruals Related To Restructuring And Optimization Programs) (Details) $ in Thousands	9 Months Ended
	Sep. 30, 2019 USD ($)
Restructuring Cost and Reserve [Line Items]
Beginning balance	$ 2,439
Restructuring charges	9,593
Cash payments	(8,770)
Non-cash items	(1,493)
Ending balance	1,769
Employee Severance [Member]
Restructuring Cost and Reserve [Line Items]
Beginning balance	1,151
Restructuring charges	6,782
Cash payments	(6,998)
Non-cash items	(40)
Ending balance	895
Other Costs [Member]
Restructuring Cost and Reserve [Line Items]
Beginning balance	1,288
Restructuring charges	2,811
Cash payments	(1,772)
Non-cash items	(1,453)
Ending balance	$ 874