Deferred Revenue (Tables)

12 Months Ended

Dec. 31, 2015

Revenue Recognition [Abstract]

Schedule of Deferred Revenue

Deferred revenue consists of the following (in thousands):

	As of December 31,
	2015		2014
Product, current	$	8,200	$	10,718
Subscription and services, current	296,969		193,159
Total deferred revenue, current	305,169		203,877
Product, non-current	3,051		4,891
Subscription and services, non-current	218,778		143,775
Total deferred revenue, non-current	221,829		148,666
Total deferred revenue	$	526,998	$	352,543