Other Current and Long-Term Assets (Schedule Of Other Long-term Assets) (Details) - USD ($) $ in Thousands	Sep. 30, 2022	Dec. 31, 2021
Other Assets, Noncurrent [Abstract]
Contract assets, net	$ 141,492	$ 122,160
Customer acquisition costs	104,997	109,392
Deferred income taxes	51,935	24,784
Equity investments	30,250	5,250
Investment in long-term product supply arrangements	21,510	13,348
Deferred sales commissions	12,586	13,019
Taxes receivable	539	1,806
Other assets	40,131	40,641
Other long-term assets	$ 403,440	$ 330,400