Segment Information (Details) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2016 USD ($)	Sep. 30, 2015 USD ($)	Sep. 30, 2016 USD ($) segment	Sep. 30, 2015 USD ($)	Dec. 31, 2015 USD ($)
Revenues from External Customers and Long-Lived Assets [Line Items]
Number of reportable segments | segment			1
Revenue	$ 290,261	$ 217,548	$ 801,198	$ 592,145
Long lived assets	78,147		78,147		$ 79,706
United States
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenue	233,018	166,466	612,852	437,922
Long lived assets	70,095		70,095		70,719
Other Americas
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenue	4,081	4,130	8,205	10,294
Europe, Middle East and Africa
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenue	37,728	29,457	124,111	94,329
Asia-Pacific
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenue	15,434	$ 17,495	56,030	$ 49,600
International
Revenues from External Customers and Long-Lived Assets [Line Items]
Long lived assets	$ 8,052		$ 8,052		$ 8,987