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Derivative Financial Instruments (Schedule Of Derivative Instruments Fair Value And Balance Sheet Classification) (Details) - Forward exchange contracts [Member] - Designated as Hedging Instrument [Member] - USD ($)
$ in Thousands
Mar. 31, 2022
Dec. 31, 2021
Prepaid And Other Current Assets [Member]    
Derivative instruments in asset positions, Forward exchange contracts $ 626 $ 491
Other Long-Term Assets [Member]    
Derivative instruments in asset positions, Forward exchange contracts   20
Accounts Payable And Accrued Liabilities [Member]    
Derivative instruments in liability positions, Forward exchange contracts $ 92  
Other Long-Term Liabilities [Member]    
Derivative instruments in liability positions, Forward exchange contracts   $ 24