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Derivative Instruments and Hedging Activities (Details)
3 Months Ended
Sep. 30, 2017
USD ($)
Derivative [Line Items]  
Gain (Loss) on Interest Rate Cash Flow Hedge Ineffectiveness $ 0
Interest Rate Swap [Member]  
Derivative [Line Items]  
Derivative, Notional Amount 75,000,000
Interest Rate Cap [Member]  
Derivative [Line Items]  
Derivative, Notional Amount $ 75,000,000