Balance Sheet Accounts (Schedule of Deferred Revenue, Net) (Details) - USD ($) $ in Thousands	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014
Deferred Revenue Arrangement [Line Items]
Deferred revenue, current and noncurrent	$ 97,053		$ 99,782
Less: current portion	75,548		76,551
Non-current deferred revenue, net	21,505		23,231
Services
Deferred Revenue Arrangement [Line Items]
Deferred revenue, current and noncurrent	84,706	$ 85,255	87,441	$ 91,373	$ 87,012	$ 89,657
Less: current portion	63,201			67,433
Non-current deferred revenue, net	21,505			$ 23,940
Product
Deferred Revenue Arrangement [Line Items]
Deferred revenue, current and noncurrent	$ 12,347		$ 12,341