Revenues (Tables)

9 Months Ended

Sep. 30, 2021

Revenue from Contract with Customer [Abstract]

Disaggregation of Revenue

The following tables present our revenues by sales type as presented in our condensed consolidated statements of operations disaggregated by the timing of transfer of goods or services (in thousands, unaudited):

	For the Three Months Ended September 30,				For the Nine Months Ended September 30,
	2021		2020		2021		2020
Product sales
Product transferred to customers at a point in time	$	53,536	$	44,561	$	161,080	$	137,324
Product transferred to customers over time	4,302		3,521		11,668		9,542
	$	57,838	$	48,082	$	172,748	$	146,866

	For the Three Months Ended September 30,				For the Nine Months Ended September 30,
	2021		2020		2021		2020
Service sales
Service transferred to customers at a point in time	$	9,332	$	9,623	$	28,931	$	27,268
Service transferred to customers over time	11,999		13,031		35,931		36,681
	$	21,331	$	22,654	$	64,862	$	63,949

The following table presents our revenues disaggregated by geography, based on the billing addresses of our customers (in thousands, unaudited):

	For the Three Months Ended September 30,				For the Nine Months Ended September 30,
	2021		2020		2021		2020
Total sales to external customers
Americas (1)	$	33,944	$	30,867	$	100,195	$	92,234
EMEA (1)	23,387		20,648		75,315		61,058
APAC (1)	21,838		19,221		62,100		57,523
	$	79,169	$	70,736	$	237,610	$	210,815

(1) Regions represent North America and South America (Americas); Europe, the Middle East, and Africa (EMEA); and the Asia-Pacific (APAC).