Segments - Summary of Revenue by Geographic Areas (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Revenues From External Customers And Long Lived Assets [Line Items]
Revenue	$ 45,225	$ 38,779	$ 89,156	$ 75,622
North America
Revenues From External Customers And Long Lived Assets [Line Items]
Revenue	32,630	29,416	64,540	57,400
Europe
Revenues From External Customers And Long Lived Assets [Line Items]
Revenue	10,492	7,810	20,542	15,193
APAC
Revenues From External Customers And Long Lived Assets [Line Items]
Revenue	$ 2,103	$ 1,553	$ 4,074	$ 3,029