Segment Information - Company's Revenue by Geographic Region, Based on Customer's Location (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Revenues from External Customers and Long-Lived Assets [Line Items]
Total net revenue	$ 68,407	$ 63,349	$ 186,053	$ 161,584
Americas [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Total net revenue	39,995	42,515	107,069	104,079
EMEA [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Total net revenue	18,542	14,113	49,859	38,604
APAC [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Total net revenue	$ 9,870	$ 6,721	$ 29,125	$ 18,901