Segment Information - Company's Revenue by Geographic Region, Based on Customer's Location (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Revenues from External Customers and Long-Lived Assets [Line Items]
Total net revenue	$ 264,455	$ 234,298	$ 164,010
United States [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Total net revenue	143,607	141,225	87,155
EMEA [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Total net revenue	50,838	47,429	39,579
APAC [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Total net revenue	48,391	30,180	27,798
Other [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Total net revenue	$ 21,619	$ 15,464	$ 9,478