Derivative Instruments and Hedging Activities (Details Textual) (USD $)	1 Months Ended	3 Months Ended		9 Months Ended
	Feb. 28, 2012	Mar. 31, 2015	Mar. 31, 2014	Mar. 31, 2015	Mar. 31, 2014	Jun. 30, 2014	Feb. 14, 2012
Derivative Instruments and Hedging Activities (Textual) [Abstract]
Recognize loss on outstanding derivatives in the next 12 months		$ 4,300,000		$ 4,300,000
Gains or losses recognized in earnings due to ineffectiveness and excluded from effectiveness testing		0	0
Derivative, Gain (Loss) on Derivative, Net [Abstract]
Payments for derivative hedging instrument upon settlement	22,400,000
Contracts translated to US dollars [Member]
Additional Derivative Instruments and Hedging Activities (Textual) [Abstract]
Notional amount of the contracts translated into U.S. dollars		50,500,000		50,500,000		91,100,000
Forward Starting Interest Rate Swap Contracts [Member]
Additional Derivative Instruments and Hedging Activities (Textual) [Abstract]
Notional amount of the contracts translated into U.S. dollars							150,000,000
Derivative, Loss on Derivative		$ 505,000	$ 500,000	$ 1,515,000	$ 1,500,000