Revenue (Tables)

12 Months Ended

Dec. 31, 2021

Revenue from Contract with Customer [Abstract]

Schedule of Disaggregation of Revenue

The following table presents our revenue for the year ended December 31, 2021, 2020, and 2019, respectively, based on geographic area and by source (in thousands):

	Year Ended December 31,
	2021		2020		2019
Geographic Markets:
Americas	$	63,877	$	74,586	$	47,016
EMEA	42,722		37,776		40,024
Asia-Pacific	23,982		25,782		30,203
Total	$	130,581	$	138,144	$	117,243

	Year Ended December 31,
	2021		2020		2019
Source:
Instruments	$	42,498	$	45,536	$	50,004
Consumables	57,878		54,408		45,412
Product revenue	100,376		99,944		95,416
Service revenue	25,917		22,579		21,277
Development revenue	2,559		8,865		—
Other revenue:
License and royalty revenue	147		3,163		—
Grant revenue	1,582		3,593		550
Total other revenue	1,729		6,756		550
Total	$	130,581	$	138,144	$	117,243

Schedule of Expected Timing of Revenue Recognition

The following table summarizes the expected timing of revenue recognition for unfulfilled performance obligations associated with instrument service contracts that were partially completed at December 31, 2021 (in thousands):

Fiscal Year	Expected Revenue (1)
2022	$	12,774
2023	6,735
2024	3,307
Thereafter	1,658
Total	$	24,474

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(1) Expected revenue includes both billed amounts included in deferred revenue and unbilled amounts that are not reflected in our consolidated financial statements and are subject to change if our customers decide to cancel or modify their contracts. Purchase orders for instrument service contracts can generally be canceled before the service period begins without penalty.