Revenue - Schedule of Disaggregated Revenue (Details) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Disaggregation Of Revenue [Line Items]
Revenue	$ 170,276	$ 185,308	$ 154,344
Immune Medicine Revenue
Disaggregation Of Revenue [Line Items]
Revenue	67,537	98,164	88,133
Immune Medicine Revenue \| Service Revenue
Disaggregation Of Revenue [Line Items]
Revenue	24,959	31,777	24,482
Immune Medicine Revenue \| Collaboration Revenue
Disaggregation Of Revenue [Line Items]
Revenue	42,578	66,387	63,651
MRD Revenue
Disaggregation Of Revenue [Line Items]
Revenue	102,739	87,144	66,211
MRD Revenue \| Service Revenue
Disaggregation Of Revenue [Line Items]
Revenue	$ 102,739	81,144	56,211
MRD Revenue \| Regulatory Milestone Revenue
Disaggregation Of Revenue [Line Items]
Revenue		$ 6,000	$ 10,000

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 924
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Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 606
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Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Topic 280
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Reference 4: http://www.xbrl.org/2003/role/disclosureRef
-Topic 280
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Reference 5: http://www.xbrl.org/2003/role/disclosureRef
-Topic 280
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-URI https://asc.fasb.org//1943274/2147482810/280-10-50-22

Reference 6: http://www.xbrl.org/2003/role/disclosureRef
-Topic 280
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Reference 7: http://www.xbrl.org/2003/role/disclosureRef
-Topic 280
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Reference 8: http://www.xbrl.org/2003/role/disclosureRef
-Topic 280
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Reference 9: http://www.xbrl.org/2003/role/disclosureRef
-Topic 280
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-Section 50
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-URI https://asc.fasb.org//1943274/2147482810/280-10-50-32

Reference 10: http://www.xbrl.org/2003/role/disclosureRef
-Topic 280
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-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482810/280-10-50-41

Reference 11: http://www.xbrl.org/2003/role/disclosureRef
-Topic 606
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-URI https://asc.fasb.org//1943274/2147479806/606-10-50-4

+ Details