Segment and Geographic Information

12 Months Ended

Dec. 31, 2019

Segment Reporting [Abstract]

Segment and Geographic Information

18. Segment and Geographic Information

The Company has one business activity, which is radiation therapy technology combined with magnetic resonance imaging, and operates in one reportable segment. The Company’s chief operating decision-maker, its chief executive officer, reviews its operating results on an aggregate basis for purposes of allocating resources and evaluating financial performance. Also, the Company does not have segment managers as the Company manages its operations as a single operating segment.

The following table sets forth revenue by geographic area based on the customers’ location (in thousands): 

	Year Ended December 31,
	2019		2018		2017
United States	$	46,236	$	34,231	$	11,506
France		12,235		5,812		—
Germany		7,393		13,727		—
Rest of world		21,918		27,192		22,536
Total revenue	$	87,782	$	80,962	$	34,042

At December 31, 2019 and 2018, nearly all long-lived assets are located in the United States.