Segments - Summary of Revenue by Geographic Areas (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Revenues From External Customers And Long Lived Assets [Line Items]
Revenue	$ 54,070	$ 43,931
Americas
Revenues From External Customers And Long Lived Assets [Line Items]
Revenue	37,591	31,910
EMEA
Revenues From External Customers And Long Lived Assets [Line Items]
Revenue	13,186	10,050
APAC
Revenues From External Customers And Long Lived Assets [Line Items]
Revenue	$ 3,293	$ 1,971