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+ Details

Revenue - Schedule of Disaggregated Revenue (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Disaggregation Of Revenue [Line Items]
Revenue	$ 47,830	$ 39,467	$ 130,110	$ 116,414
Immune Medicine Revenue
Disaggregation Of Revenue [Line Items]
Revenue	27,879	23,615	71,073	66,759
Immune Medicine Revenue \| Service Revenue
Disaggregation Of Revenue [Line Items]
Revenue	6,559	8,169	20,968	17,622
Immune Medicine Revenue \| Collaboration Revenue
Disaggregation Of Revenue [Line Items]
Revenue	21,320	15,446	50,105	49,137
MRD Revenue
Disaggregation Of Revenue [Line Items]
Revenue	19,951	15,852	59,037	49,655
MRD Revenue \| Service Revenue
Disaggregation Of Revenue [Line Items]
Revenue	$ 19,951	14,352	55,037	39,655
MRD Revenue \| Regulatory Milestone Revenue
Disaggregation Of Revenue [Line Items]
Revenue		$ 1,500	$ 4,000	$ 10,000