Geographic Information (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	$ 45,087	$ 35,836	$ 92,522	$ 63,131
United States
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	38,510	30,382	79,382	53,598
Americas, excluding US
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	1,210	1,170	2,506	2,141
Europe, Middle East, India, Africa
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	4,088	3,189	7,982	5,647
Other
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	$ 1,279	$ 1,095	$ 2,652	$ 1,745