Derivative Instruments and Hedging Activities (Details Textual) (USD $)	1 Months Ended		12 Months Ended
	Feb. 28, 2012	Feb. 27, 2009	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2012	Feb. 14, 2012 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 Instruments and Hedging Activities (Textual) [Abstract]
Terminated Interest Rate Swap Contracts		200,000,000
Recognize loss on outstanding derivatives in the next 12 months			100,000
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		$ 0	$ 0	$ 22,406,000