Information about Geographic Areas - Classification of Revenue by Geography (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Revenues from External Customers and Long-Lived Assets [Line Items]
Total revenue	$ 22,627	$ 13,066	$ 37,324	$ 24,659
Americas
Revenues from External Customers and Long-Lived Assets [Line Items]
Total revenue	16,319	8,133	26,404	15,656
Europe & Middle East
Revenues from External Customers and Long-Lived Assets [Line Items]
Total revenue	4,880	3,012	7,733	5,955
Asia Pacific
Revenues from External Customers and Long-Lived Assets [Line Items]
Total revenue	$ 1,428	$ 1,921	$ 3,187	$ 3,048