Summary of Significant Accounting Policies (Schedule of Change in Deferred Maintenance Revenue) (Details) - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2017	Jun. 30, 2016
Movement in Deferred Revenue [Roll Forward]
Balance beginning of period	$ 94,860
Balance end of period	104,341	$ 94,860
Less: current portion	79,048	72,934
Non-current deferred revenue, net	25,293	21,926
Deferred Maintenance Revenue
Movement in Deferred Revenue [Roll Forward]
Balance beginning of period	83,419	87,441
Deferred maintenance assumed due to acquisition	14,159
New maintenance arrangements	125,542	110,192
Recognition of maintenance revenue	(125,810)	(114,214)
Balance end of period	97,310	83,419
Less: current portion	72,017	61,493
Non-current deferred revenue, net	$ 25,293	$ 21,926