Balance Sheet Accounts (Schedule of Deferred Revenue, Net) (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013
Deferred Revenue Arrangement [Line Items]
Deferred revenue, current and noncurrent	$ 98,293		$ 97,677
Less: current portion	74,353		74,735
Non-current deferred revenue, net	23,940		22,942
Services
Deferred Revenue Arrangement [Line Items]
Deferred revenue, current and noncurrent	91,373	87,012	89,657	81,485	37,091	38,003
Less: current portion	67,433			63,150
Non-current deferred revenue, net	23,940			18,335
Product
Deferred Revenue Arrangement [Line Items]
Deferred revenue, current and noncurrent	$ 6,920		$ 8,020