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Derivatives and Hedging Activities (Derivative Contracts and Changes in Underlying Value of the Foreign Currency Exposures) (Details) (USD $)
In Thousands, unless otherwise specified
1 Months Ended 12 Months Ended
Sep. 30, 2011
Jun. 30, 2012
Jun. 30, 2011
Jun. 30, 2010
General Discussion of Derivative Instruments and Hedging Activities [Abstract]        
Net foreign exchange derivative contract gain (loss) $ 2,500 $ (1,480) $ (2,706) $ (1,065)
Net foreign currency transaction and remeasurement gain (loss)   (2,286) 1,741 826
Net foreign currency gain (loss)   $ (3,766) $ (965) $ (239)