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Revenue Recognition - Summary of balances and activities in our contract asset account (Details) - Cp G1018 [Member] - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2022 | Dec. 31, 2021
Contract Asset Account [Abstract] |  |  |  |
Balance at Beginning of Period |  | $ 62,525 | [1] | $ 0
Contract asset, Additions | [2] | 17,556 | [1] | 62,525
Contract asset, Subtractions | [1] | 8,116 |  |
Balance at End of Period | [1] | $ 71,965 |  | $ 62,525
[1] | Includes $0.7 million of contract assets derived from our agreement with the DoD.
[2] | Additions are revenues recognized for CpG 1018 adjuvant transferred to Clover that is reserved under the CEPI Agreement and for services performed under our agreement with the DoD.

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- Definition Amount of increase from purchase of right to consideration in exchange for good or service transferred to customer when right is conditioned on passage of time. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 50 -Paragraph 11 -Subparagraph (h) -URI https://asc.fasb.org/extlink&oid=124255953&loc=SL82919244-210447 + Details
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- Definition Amount of decrease from sale of right to consideration in exchange for good or service transferred to customer when right is conditioned on something other than passage of time and other income. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 50 -Paragraph 11 -Subparagraph (i) -URI https://asc.fasb.org/extlink&oid=124255953&loc=SL82919244-210447 + Details
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