Segment Information and Information about Geographic Areas - Net Revenues of Customer by Geographic Area (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Entity Wide Portfolio Carrying Amount, Major Customer [Line Items]
Net revenues, Total	$ 45,245	$ 34,796
North America [Member]
Entity Wide Portfolio Carrying Amount, Major Customer [Line Items]
Net revenues, Total	37,993	30,132
Other [Member]
Entity Wide Portfolio Carrying Amount, Major Customer [Line Items]
Net revenues, Total	$ 7,252	$ 4,664