Balance Sheet Components (Summary of Deferred Revenue) (Details) - USD ($) $ in Thousands	Jun. 30, 2018	Jun. 30, 2017
Deferred Revenue Arrangement [Line Items]
Total deferred revenue	$ 174,525	$ 104,341
Less: current portion	130,865	79,048
Non-current deferred revenue	43,660	25,293
Deferred Maintenance and Support [Member]
Deferred Revenue Arrangement [Line Items]
Total deferred revenue	164,986	97,310
Deferred Other Revenue [Member]
Deferred Revenue Arrangement [Line Items]
Total deferred revenue	$ 9,539	$ 7,031