Segment And Geographic Information (Schedule Of Net Revenues By Geographic Location) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Total revenues	$ 298,836	$ 253,227	$ 276,222
Domestic [Member]
Total revenues	151,151	138,274	150,553
Foreign [Member]
Total revenues	$ 147,685	$ 114,953	$ 125,669