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Derivatives and Hedging Activities (Narrative) (Details) (USD $)
1 Months Ended 3 Months Ended
Sep. 30, 2011
Sep. 30, 2012
Sep. 30, 2011
Jun. 30, 2012
General Discussion of Derivative Instruments and Hedging Activities [Abstract]        
Notional amount of foreign currency contracts outstanding   $ 56,200,000   $ 62,300,000
Loss on foreign currency derivative instruments not designated as hedging instruments $ 2,500,000 $ 1,223,000 $ 1,212,000  
Currency devaluation, percentage 11.80%