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Financial Instruments (DetailsTextual) - Jun. 30, 2015
CAD in Millions, AUD in Millions, $ in Millions
USD ($)
CAD
AUD
Forward Exchange Contracts, Australian [Member]      
Financial Instruments [Line Items]      
Forward Exchange Contracts Outstanding $ 3.6   AUD 4.5
Forward Exchange Contracts, Canadian [Member]      
Financial Instruments [Line Items]      
Forward Exchange Contracts Outstanding $ 5.5 CAD 6.5