Segment Information - Company's Net Revenue by Geographic Region, Based on Customer's Location (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Revenues from External Customers and Long-Lived Assets [Line Items]
Total net revenue	$ 42,675	$ 35,102	$ 112,633	$ 95,026
Americas [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Total net revenue	22,801	19,941	63,731	58,168
EMEA [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Total net revenue	12,929	9,737	30,543	22,239
APAC [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Total net revenue	$ 6,945	$ 5,424	$ 18,359	$ 14,619