Trade Receivables - Summary of Receivables (Details) - USD ($) $ in Thousands	Mar. 31, 2023	Dec. 31, 2022
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total receivables	$ 1,091	$ 8,268
Billed
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total receivables	807	7,959
Unbilled
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total receivables	284	309
U.S. Department of Health and Human Services, net
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total receivables	570	7,502
U.S. Department of Health and Human Services, net | Billed
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total receivables	286	7,218
U.S. Department of Health and Human Services, net | Unbilled
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total receivables	284	284
Royalty receivables from partners
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total receivables	521	741
Royalty receivables from partners | Billed
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total receivables	521	741
Royalty receivables from partners | Unbilled
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total receivables	$ 0	0
Other collaborations
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total receivables		25
Other collaborations | Billed
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total receivables		0
Other collaborations | Unbilled
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total receivables		$ 25