Balance Sheet Details - Schedule of Deferred Revenues (Details) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2015	Dec. 31, 2014
Deferred Revenue Arrangement [Line Items]
Short-term deferred revenue	$ 177,983	$ 173,532
Long-term deferred revenue	86,734	89,366
Software Service, Support and Maintenance Arrangement
Deferred Revenue Arrangement [Line Items]
Short-term deferred revenue	175,509	171,355
Long-term deferred revenue	83,433	85,925
Software License Arrangement
Deferred Revenue Arrangement [Line Items]
Short-term deferred revenue	2,455	2,083
Long-term deferred revenue	3,301	3,441
Product
Deferred Revenue Arrangement [Line Items]
Short-term deferred revenue	$ 19	$ 94