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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	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011
Gain (Loss) On Currency Exchange \| Foreign Exchange Contracts
Derivative Instruments, Gain (Loss) [Line Items]
Realized and unrealized gains or losses on derivative instruments	$ (112)	$ (4)

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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