Segment and Geographic Information

12 Months Ended

Dec. 31, 2018

The Company operates in one segment, machine vision technology. The Company’s chief operating decision maker is the chief executive officer, who makes decisions to allocate resources and assesses performance at the corporate level. The Company offers a variety of machine vision products that have similar economic characteristics, have the same production processes, and are distributed by the same sales channels to the same types of customers.

The following table summarizes information about geographic areas (in thousands):



	United States		Europe		Greater China		Other		Total
Year Ended December 31, 2018
Revenue	$	231,760	$	307,965	$	126,109	$	140,504	$	806,338
Long-lived assets	67,156		23,948		1,482		2,735		$	95,321
Year Ended December 31, 2017
Revenue	$	180,248	$	328,826	$	108,738	$	148,271	$	766,083
Long-lived assets	53,983		22,437		1,594		2,525		$	80,539
Year Ended December 31, 2016
Revenue	$	142,380	$	230,311	$	66,179	$	90,645	$	529,515
Long-lived assets	40,404		12,981		994		1,932		$	56,311

Revenue is presented geographically based upon the customer’s country of domicile. Revenue from a single customer accounted for 15%, 20%, and 17% of total revenue in 2018, 2017, and 2016, respectively. Accounts receivable from the same customer accounted for 30%, 40%, and 10% of total accounts receivable as of December 31, 2018, 2017, and 2016, respectively.