Geographic Information - Schedule of Revenue by Geographic Areas (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Revenues From External Customers And Long Lived Assets [Line Items]
Revenue	$ 29,506	$ 16,396	$ 54,598	$ 30,307
United States
Revenues From External Customers And Long Lived Assets [Line Items]
Revenue	16,858	9,512	31,743	17,568
EMEA
Revenues From External Customers And Long Lived Assets [Line Items]
Revenue	8,241	4,443	14,861	8,243
Other
Revenues From External Customers And Long Lived Assets [Line Items]
Revenue	$ 4,407	$ 2,441	$ 7,994	$ 4,496