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Derivative Instruments And Hedging Activities (Fair Value Of Derivative Instruments In The Condensed Consolidated Balance Sheets) (Details) (Foreign Exchange Forward [Member], USD $)
3 Months Ended 9 Months Ended
Mar. 31, 2014
Jun. 30, 2013
Mar. 31, 2014
Cash Flow Hedging [Member]
Mar. 31, 2013
Cash Flow Hedging [Member]
Mar. 31, 2014
Cash Flow Hedging [Member]
Mar. 31, 2013
Cash Flow Hedging [Member]
Mar. 31, 2014
Accounts Payable and Accrued Liabilities [Member]
Cash Flow Hedging [Member]
Designated As Hedging Instrument [Member]
Jun. 30, 2013
Accounts Payable and Accrued Liabilities [Member]
Cash Flow Hedging [Member]
Designated As Hedging Instrument [Member]
Derivatives, Fair Value [Line Items]                
Amount of Gain or (Loss) Recognized in OCI on Derivative (Effective Portion)     $ (2,182,000) $ (1,235,000) $ (2,064,000) $ 1,490,000    
Notional amount of forward contracts held to sell U.S. dollars in exchange for Canadian dollars 49,800,000 99,600,000            
Fair Value Asset (Liability)             $ (1,956,000) $ (3,170,000)