Geographic Information (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	$ 52,912	$ 44,921	$ 45,087	$ 47,435	$ 49,884	$ 46,274	$ 35,836	$ 27,295	$ 190,355	$ 159,289	$ 55,171
United States
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues									164,952	136,478	48,263
Americas, excluding U.S.
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues									4,552	4,883	1,402
Europe, Middle East, India, Africa
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues									15,437	13,098	4,275
Other
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues									$ 5,414	$ 4,830	$ 1,231