Schedule of Deferred Revenue (Detail) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2014	Dec. 31, 2013
Deferred Revenue Arrangement [Line Items]
Current deferred revenue	$ 128,259	$ 110,690
Long-term deferred revenue	20,645	34,196
Total deferred revenue	148,904	144,886
Software license
Deferred Revenue Arrangement [Line Items]
Current deferred revenue	44,470	28,826
Long-term deferred revenue	20,227	32,727
Maintenance
Deferred Revenue Arrangement [Line Items]
Current deferred revenue	73,573	72,715
Cloud
Deferred Revenue Arrangement [Line Items]
Current deferred revenue	3,826	2,360
Long-term deferred revenue	38	354
Services and other
Deferred Revenue Arrangement [Line Items]
Current deferred revenue	6,390	6,789
Maintenance and services
Deferred Revenue Arrangement [Line Items]
Long-term deferred revenue	$ 380	$ 1,115