Other Current and Long-Term Assets (Schedule Of Other Current Assets) (Details) - USD ($) $ in Thousands	Jun. 30, 2023	Dec. 31, 2022
Other Assets, Noncurrent [Abstract]
Customer acquisition costs	$ 52,457	$ 50,776
Contract assets, net	50,124	41,854
Prepaid expenses	38,918	41,742
Taxes receivable	20,305	48,430
Deferred sales commissions	6,583	6,472
Foreign currency exchange contracts	3,918	5,185
Cross currency swap contracts	0	8,135
Other assets	16,883	17,895
Other current assets	$ 189,188	$ 220,489