Revenue (Tables)

9 Months Ended

Sep. 30, 2018

Revenue From Contract With Customer [Abstract]

Schedule of Disaggregation of Revenue by Geographic Region

Revenue by geographic region, based on the physical location of the customer, is (in thousands):

	Three Months Ended September 30,						Nine Months Ended September 30,
	2018			2017			2018			2017
				*As Adjusted						*As Adjusted
United States	$	44,790		$	36,613		$	124,586		$	100,339
Foreign		10,449			6,590			28,707			15,881
Total revenue	$	55,239		$	43,203		$	153,293		$	116,220
Percentage of revenue generated outside of the United    States		19	%		15	%		19	%		14	%

* See Note 1 for a summary of adjustments