Derivative Financial Instruments (Schedule Of Derivative Instruments Fair Value And Balance Sheet Classification) (Details) - Forward exchange contracts [Member] - USD ($) $ in Thousands	Dec. 31, 2015	Dec. 31, 2014
Assets Held-for-Sale [Member]
Derivative instruments in asset positions, Forward exchange contracts		$ 158
Prepaid And Other Current Assets [Member]
Derivative instruments in asset positions, Forward exchange contracts	$ 893	2,935
Other Long-Term Assets [Member]
Derivative instruments in asset positions, Forward exchange contracts	12	419
Accounts Payable And Accrued Liabilities [Member]
Derivative instruments in liability positions, Forward exchange contracts		79
Other Long-Term Liabilities [Member]
Derivative instruments in liability positions, Forward exchange contracts	$ 25	$ 11