Segment Information and Geographic Data (Tables)

6 Months Ended

Jun. 30, 2019

Segment Reporting [Abstract]

Revenues by Geographical Region

Revenues by geographical region:

	Three Months End June 30,						Six Months Ended June 30,
	2019			2018			2019			2018
Americas	$	111,181		$	86,486		$	215,470		$	168,644
Europe		40,283			28,172			76,959			53,382
Asia Pacific		11,791			7,918			22,624			15,106
Total	$	163,255		$	122,576		$	315,053		$	237,132
Percentage of revenues generated outside    of the Americas		32	%		29	%		32	%		29	%

Long Lived Assets by Geographical Region

Total long-lived assets by geographical region:

	As of June 30, 2019			As of December 31,  2018
Americas	$	38,346		$	35,186
Europe		16,168			13,913
Asia Pacific		3,957			3,369
Total long-lived assets	$	58,471		$	52,468
Percentage of long-lived assets held outside of the    Americas		34	%		33	%