Derivative Financial Instruments - Schedule of Effect of Forward Contracts Not Designated as Hedging Instruments and Foreign Currency Transactions Gains and Losses (Details) - Other expense, net - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2016
Foreign currency exchange loss on foreign contracts	$ 1,475	$ 55	$ 2,141
Foreign Exchange Option
Foreign currency exchange loss on foreign contracts	$ 2,461	$ 1,322	$ 4,155