Other Current and Long-Term Assets (Schedule Of Other Long-term Assets) (Details) - USD ($) $ in Thousands	Jun. 30, 2022	Dec. 31, 2021
Other Assets, Noncurrent [Abstract]
Contract assets, net	$ 138,776	$ 122,160
Customer acquisition costs	106,727	109,392
Deferred income taxes	40,548	24,784
Equity investments	30,250	5,250
Investment in long-term product supply arrangements	22,642	13,348
Deferred sales commissions	12,804	13,019
Taxes receivable	361	1,806
Other assets	46,445	40,641
Other long-term assets	$ 398,553	$ 330,400