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Foreign Currency Translation And Hedging Activities (Foreign Currency Transaction and Hedging Gain (Loss)) (Details) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2012 USD ($)	Sep. 30, 2011 USD ($)	Sep. 30, 2012 USD ($)	Sep. 30, 2011 USD ($)	Sep. 30, 2012 EUR (€)	Sep. 30, 2012 Minimum USD ($)	Sep. 30, 2012 Maximum USD ($)
Derivative [Line Items]
Foreign currency option strike price						1.25	1.3165
Foreign currency transactions gain (loss)	$ 340	$ (48)	$ 524	$ 845
Foreign currency option loss	(280)	0	(330)	0
Foreign currency gain (loss), net	60	(48)	194	845
Notional amount of foreign currency derivatives					€ 9,000

The aggregate foreign currency transaction gain (loss) (both realized and unrealized) included in determining net income for the reporting period. Excludes foreign currency transactions designated as hedges of net investment in a foreign entity and intercompany foreign currency transactions that are of a long-term nature, when the entities to the transaction are consolidated, combined, or accounted for by the equity method in the reporting enterprise's financial statements. For certain enterprises, primarily banks, that are dealers in foreign exchange, foreign currency transaction gains (losses) may be disclosed as dealer gains (losses).

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