Commitments and Contingencies.

No definition available.

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- Definition

Maximum payment to buy out royalty obligation.

+ References

No definition available.

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- Definition

Non-refundable license fee paid.

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- Definition

Operating lease commencement date.

+ References

No definition available.

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- Definition

Indicates (true false) whether lessee has option to extend operating lease.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 842
-SubTopic 20
-Section 50
-Paragraph 3
-Subparagraph (a)(3)
-URI http://asc.fasb.org/extlink&oid=123408670&loc=SL77918673-209980

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- Definition

Description of terms and conditions of option to extend lessee's operating lease. Includes, but is not limited to, information about option recognized as part of right-of-use asset and lease liability.

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- Definition

Term of lessee's operating lease, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
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-SubTopic 20
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-Paragraph 3
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- Definition

Amount of single lease cost, calculated by allocation of remaining cost of lease over remaining lease term. Includes, but is not limited to, single lease cost, after impairment of right-of-use asset, calculated by amortization of remaining right-of-use asset and accretion of lease liability.

+ References

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- Definition

Weighted average remaining lease term for operating lease, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

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Commitments and Contingencies - Additional Information (Details) - USD ($) $ in Thousands	1 Months Ended	9 Months Ended	12 Months Ended
	Aug. 31, 2021	Sep. 30, 2021	Dec. 31, 2020
Commitments And Contingencies [Line Items]
Operating lease, weighted average remaining lease term		1 year 1 month 6 days
Operating lease expense			$ 0
San Diego, California
Commitments And Contingencies [Line Items]
Operating lease commencement date	Sep. 01, 2021
Operating lease term of contract	14 months
Operating lease, option to extend	There are no options to extend the term or early termination provisions.
Operating lease, existence of option to extend	false
Cell Line License Agreement \| Wu Xi Biologics
Commitments And Contingencies [Line Items]
Non-refundable license fee paid		$ 200
Maximum payment to buy out royalty obligation		$ 15,000