Restructuring Charges and Other Costs (Schedule Of Restructuring Reserves) (Details) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023
Restructuring Cost and Reserve [Line Items]
Beginning Balance	$ 125
Restructuring Charges	5,609	$ 5,200
Cash Payment	(5,435)
Non-Cash Activity	0
Ending Balance	299
Severance [Member]
Restructuring Cost and Reserve [Line Items]
Beginning Balance	35
Restructuring Charges	4,460
Cash Payment	(4,196)
Non-Cash Activity	0
Ending Balance	299
Lease Facility Costs [Member]
Restructuring Cost and Reserve [Line Items]
Beginning Balance	9
Restructuring Charges	(9)
Cash Payment	0
Non-Cash Activity	0
Ending Balance	0
Other Exit Costs [Member]
Restructuring Cost and Reserve [Line Items]
Beginning Balance	81
Restructuring Charges	1,158
Cash Payment	(1,239)
Non-Cash Activity	0
Ending Balance	$ 0