Revenues - Summary of Total Net Revenues by Product Line (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2025	Jun. 30, 2024	Jun. 30, 2025	Jun. 30, 2024
Disaggregation Of Revenue [Line Items]
Revenue	$ 31,242	$ 54,335	$ 61,173	$ 108,467
Product and Services Revenues
Disaggregation Of Revenue [Line Items]
Revenue	29,847	53,949	58,844	107,728
Product and Services Revenues \| HIV
Disaggregation Of Revenue [Line Items]
Revenue	14,398	18,939	27,298	42,067
Product and Services Revenues \| Sample Management Solutions
Disaggregation Of Revenue [Line Items]
Revenue	9,855	13,652	18,965	27,032
Product and Services Revenues \| HCV
Disaggregation Of Revenue [Line Items]
Revenue	4,126	12,609	8,459	23,431
Product and Services Revenues \| Risk assessment testing
Disaggregation Of Revenue [Line Items]
Revenue	446	4,734	1,866	7,734
Product and Services Revenues \| Other product and services revenues
Disaggregation Of Revenue [Line Items]
Revenue	994	2,308	1,767	4,352
Product and Services Revenues \| COVID-19
Disaggregation Of Revenue [Line Items]
Revenue	28	810	489	1,683
Product and Services Revenues \| Molecular Services
Disaggregation Of Revenue [Line Items]
Revenue	0	897	0	1,429
Other
Disaggregation Of Revenue [Line Items]
Revenue	31,242	54,335	61,173	108,467
Other \| Non-product and services revenues
Disaggregation Of Revenue [Line Items]
Revenue	$ 1,395	$ 386	$ 2,329	$ 739