Other Current and Long-Term Assets (Schedule Of Other Long-term Assets) (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Other Assets, Noncurrent [Abstract]
Contract assets, net	$ 148,971	$ 122,160
Customer acquisition costs	107,205	109,392
Deferred income taxes	55,215	24,784
Equity investments	30,250	5,250
Investment in long-term product supply arrangements	25,250	13,348
Deferred sales commissions	12,718	13,019
Taxes receivable	717	1,806
Other	37,403	40,641
Other long-term assets	$ 417,729	$ 330,400