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Derivatives (Schedule Of Realized And Unrealized Gains Or Losses On Derivative Instruments) (Details) (Gain (Loss) On Currency Exchange, Foreign Exchange Contracts, USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012
Gain (Loss) On Currency Exchange \| Foreign Exchange Contracts
Derivative Instruments, Gain (Loss) [Line Items]
Realized and unrealized losses on derivative instruments	$ (65)	$ (23)	$ (74)	$ (90)

The amount of net gains and losses recognized in income during the period on derivative instruments designated and qualifying as hedging instruments in fair value hedges and related hedged items designated and qualifying in fair value hedges, on derivative instruments designated and qualifying as hedging instruments in cash flow hedges, and on derivative instruments not designated as hedging instruments.

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