Other Current and Long-Term Assets (Schedule Of Other Current Assets) (Details) - USD ($) $ in Thousands	Sep. 30, 2023	Dec. 31, 2022
Other Assets, Noncurrent [Abstract]
Customer acquisition costs	$ 52,912	$ 50,776
Contract assets, net	50,954	41,854
Prepaid expenses	49,875	41,742
Taxes receivable	18,212	48,430
Deferred sales commissions	6,453	6,472
Foreign currency exchange contracts	7,993	5,185
Cross currency swap contracts	0	8,135
Other assets	19,462	17,895
Other current assets	$ 205,861	$ 220,489