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SEGMENT REPORTING - Summary of Reportable Revenues by Geographic Regions (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Segment Reporting Information [Line Items]
Total revenue	$ 92,274	$ 70,301	$ 164,323	$ 147,563
United States
Segment Reporting Information [Line Items]
Total revenue	87,968	66,478	156,478	140,358
Europe
Segment Reporting Information [Line Items]
Total revenue	2,861	2,653	5,170	5,198
Rest of World
Segment Reporting Information [Line Items]
Total revenue	1,445	1,170	2,675	2,007
Testing services revenue
Segment Reporting Information [Line Items]
Total revenue	70,918	53,414	124,755	115,198
Testing services revenue | United States
Segment Reporting Information [Line Items]
Total revenue	70,699	53,269	124,349	114,916
Testing services revenue | Rest of World
Segment Reporting Information [Line Items]
Total revenue	219	145	406	282
Product revenue
Segment Reporting Information [Line Items]
Total revenue	10,610	7,876	19,204	14,737
Product revenue | United States
Segment Reporting Information [Line Items]
Total revenue	6,575	4,320	11,851	8,047
Product revenue | Europe
Segment Reporting Information [Line Items]
Total revenue	2,822	2,532	5,104	4,993
Product revenue | Rest of World
Segment Reporting Information [Line Items]
Total revenue	1,213	1,024	2,249	1,697
Patient and digital solutions revenue
Segment Reporting Information [Line Items]
Total revenue	10,746	9,011	20,364	17,628
Patient and digital solutions revenue | United States
Segment Reporting Information [Line Items]
Total revenue	10,694	8,889	20,278	17,395
Patient and digital solutions revenue | Europe
Segment Reporting Information [Line Items]
Total revenue	39	121	66	205
Patient and digital solutions revenue | Rest of World
Segment Reporting Information [Line Items]
Total revenue	$ 13	$ 1	$ 20	$ 28

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