Stockholders' Equity (Components Of Accumulated Other Comprehensive Loss) (Details) - USD ($) $ in Thousands	Jun. 30, 2024	Dec. 31, 2023
Stockholders' Equity Note [Abstract]
Foreign currency translation adjustments, net of income taxes	$ (341,322)	$ (275,678)
Unrecognized losses and prior service costs, net of income taxes	(798)	(798)
Unrealized net losses on securities, net of income taxes	186	(216)
Accumulated other comprehensive loss	$ (341,934)	$ (276,692)