Segment Information - Geographical Information (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015	Dec. 31, 2015
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	$ 55,397	$ 44,780	$ 171,831	$ 140,516
Property and equipment, net	6,616		6,616		$ 6,134
Total Intangible Assets, Net	20,762		20,762		30,322
UNITED STATES
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	34,497	18,353	116,537	57,997
Property and equipment, net	4,286		4,286		3,061
Total Intangible Assets, Net					30,322
Foreign Countries [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	20,900	26,427	55,294	82,519
Property and equipment, net	2,330		2,330		3,073
Other North America
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	44	186	161	473
Property and equipment, net	169		169		257
Asia Pacific [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	7,946	19,206	22,025	58,016
Property and equipment, net	2,161		2,161		2,815
CHINA [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	2,767	5,859	8,432	26,414
Property and equipment, net	643		643		1,231
India [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	1,730	6,549	5,480	12,494
INDIA
Revenues from External Customers and Long-Lived Assets [Line Items]
Property and equipment, net	1,518		1,518		1,584
Other Asia Pacific [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	3,449	6,798	8,113	19,108
Netherlands [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	8,197	3,404	23,270	10,591
Other EMEA [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	4,713	3,631	9,838	13,439
Property and equipment, net	0		0		$ 1
Europe, the Middle East and Africa [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	$ 12,910	$ 7,035	$ 33,108	$ 24,030