Fair Value of Financial Instruments - Measured on Recurring Basis (Details) - Recurring - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Assets [Abstract]
Cash equivalents	$ 53,224	$ 106,892
Investments	351,591	259,153
Fair value of financial instruments	404,815	366,045
Liabilities [Abstract]
Total liabilities	1,876	1,512
Warrant Liability
Liabilities [Abstract]
Total liabilities	1,876	1,512
Money Market Mutual Funds
Assets [Abstract]
Cash equivalents	50,737	90,527
Commercial Paper
Assets [Abstract]
Cash equivalents		3,899
Investments		1,151
U.S. Treasury Securities
Assets [Abstract]
Cash equivalents	2,487	3,848
Investments	312,696	189,444
Corporate Bonds
Assets [Abstract]
Cash equivalents		8,618
Investments	38,895	60,905
Agency Bonds
Assets [Abstract]
Investments		7,653
Level 1
Assets [Abstract]
Cash equivalents	50,737	90,527
Investments	0	0
Fair value of financial instruments	50,737	90,527
Liabilities [Abstract]
Total liabilities	0	0
Level 1 \| Warrant Liability
Liabilities [Abstract]
Total liabilities	0	0
Level 1 \| Money Market Mutual Funds
Assets [Abstract]
Cash equivalents	50,737	90,527
Level 1 \| Commercial Paper
Assets [Abstract]
Cash equivalents		0
Investments		0
Level 1 \| U.S. Treasury Securities
Assets [Abstract]
Cash equivalents	0	0
Investments	0	0
Level 1 \| Corporate Bonds
Assets [Abstract]
Cash equivalents		0
Investments	0	0
Level 1 \| Agency Bonds
Assets [Abstract]
Investments		0
Level 2
Assets [Abstract]
Cash equivalents	2,487	16,365
Investments	351,591	259,153
Fair value of financial instruments	354,078	275,518
Liabilities [Abstract]
Total liabilities	0	0
Level 2 \| Warrant Liability
Liabilities [Abstract]
Total liabilities	0	0
Level 2 \| Money Market Mutual Funds
Assets [Abstract]
Cash equivalents	0	0
Level 2 \| Commercial Paper
Assets [Abstract]
Cash equivalents		3,899
Investments		1,151
Level 2 \| U.S. Treasury Securities
Assets [Abstract]
Cash equivalents	2,487	3,848
Investments	312,696	189,444
Level 2 \| Corporate Bonds
Assets [Abstract]
Cash equivalents		8,618
Investments	38,895	60,905
Level 2 \| Agency Bonds
Assets [Abstract]
Investments		7,653
Level 3
Assets [Abstract]
Cash equivalents	0	0
Investments	0	0
Fair value of financial instruments	0	0
Liabilities [Abstract]
Total liabilities	1,876	1,512
Level 3 \| Warrant Liability
Liabilities [Abstract]
Total liabilities	1,876	1,512
Level 3 \| Money Market Mutual Funds
Assets [Abstract]
Cash equivalents	0	0
Level 3 \| Commercial Paper
Assets [Abstract]
Cash equivalents		0
Investments		0
Level 3 \| U.S. Treasury Securities
Assets [Abstract]
Cash equivalents	0	0
Investments	0	0
Level 3 \| Corporate Bonds
Assets [Abstract]
Cash equivalents		0
Investments	$ 0	0
Level 3 \| Agency Bonds
Assets [Abstract]
Investments		$ 0

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- Definition

Fair value portion of probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482106/820-10-50-2

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Fair value portion of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates.

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- Definition

Fair value portion of investment securities, including, but not limited to, marketable securities, derivative financial instruments, and investments accounted for under the equity method.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 820
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482106/820-10-50-2

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Fair value of financial and nonfinancial obligations.

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