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Derivative Instruments and Hedging Activities (Details Textual) - USD ($)
$ in Millions
3 Months Ended
Sep. 30, 2016
Sep. 30, 2015
Jun. 30, 2016
Derivative Instruments and Hedging Activities (Textual) [Abstract]      
Gains or losses recognized in earnings due to ineffectiveness and excluded from effectiveness testing $ 0.0 $ 0.0  
Cash Flow Hedging [Member]      
Derivatives, Fair Value [Line Items]      
Derivative, Notional Amount $ 71.5   $ 53.3