Goodwill And Other Intangible Assets (Schedule Of Amortization Expense) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Goodwill And Intangible Assets Disclosure [Abstract]
Amortization of intangible assets	$ 1,599	$ 2,371	$ 3,197	$ 4,752
Amortization of capitalized purchased software costs			832	736
Amortization of debt costs			230	230
Total amortization			$ 4,259	$ 5,718