XML 60 R41.htm IDEA: XBRL DOCUMENT v3.3.1.900
Acquisitions - Schedule of Total Purchase Consideration (Detail) - USD ($)
$ in Thousands
12 Months Ended
Feb. 07, 2014
Dec. 31, 2015
Dec. 31, 2014
Dec. 31, 2013
Business Acquisition [Line Items]        
Cash   $ 0 $ 12,083 $ 0
Skyfence Networks Ltd. [Member]        
Business Acquisition [Line Items]        
Cash $ 8,558      
Cash holdback liability 7,157      
Fair value of common stock 20,855      
Estimated fair value of equity awards assumed and replaced 354      
Total purchase price $ 36,924