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Derivative Instruments And Hedging Activities (Fair Value Of Derivative Instruments In The Condensed Consolidated Balance Sheets) (Details) (USD $)
Dec. 31, 2012
Jun. 30, 2012
Derivatives, Fair Value [Line Items]    
Notional amount of forward contracts held to sell U.S. dollars in exchange for Canadian dollars $ 49,800,000 $ 99,600,000
Prepaid Expenses and Other Current Assets [Member] | Cash Flow Hedging [Member] | Designated As Hedging Instrument [Member] | Foreign Exchange Forward [Member]
   
Derivatives, Fair Value [Line Items]    
Fair Value Asset (Liability) $ 948,000 $ 283,000