Balance Sheet Components - Schedule of Property and Equipment (Details) - USD ($) $ in Thousands	Dec. 31, 2015	Dec. 31, 2014
Property Plant And Equipment [Line Items]
Property and equipment – gross	$ 45,507	$ 37,413
Less: accumulated depreciation and amortization	(13,753)	(8,845)
Property and equipment – net	31,754	28,568
Computer equipment
Property Plant And Equipment [Line Items]
Property and equipment – gross	13,195	11,590
Leasehold improvements
Property Plant And Equipment [Line Items]
Property and equipment – gross	9,882	6,121
Capitalized software costs
Property Plant And Equipment [Line Items]
Property and equipment – gross	1,888	1,754
Office equipment
Property Plant And Equipment [Line Items]
Property and equipment – gross	2,336	1,402
Software And License
Property Plant And Equipment [Line Items]
Property and equipment – gross	1,768	963
Building leased
Property Plant And Equipment [Line Items]
Property and equipment – gross	$ 16,438	$ 15,583