Fair Value of Financial Instruments - Measured on Recurring Basis (Details) - Recurring - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
Assets [Abstract]
Cash equivalents	$ 17,107	$ 53,224
Investments	295,037	351,591
Fair value of financial instruments	312,144	404,815
Liabilities [Abstract]
Total liabilities	765	1,876
Warrant Liability
Liabilities [Abstract]
Total liabilities	765	1,876
Money Market Mutual Funds
Assets [Abstract]
Cash equivalents	17,107	50,737
U.S. Treasury securities
Assets [Abstract]
Cash equivalents		2,487
Investments	273,846	312,696
Corporate Bonds
Assets [Abstract]
Investments	21,191	38,895
Level 1
Assets [Abstract]
Cash equivalents	17,107	50,737
Investments	0	0
Fair value of financial instruments	17,107	50,737
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	17,107	50,737
Level 1 \| U.S. Treasury securities
Assets [Abstract]
Cash equivalents		0
Investments	0	0
Level 1 \| Corporate Bonds
Assets [Abstract]
Investments	0	0
Level 2
Assets [Abstract]
Cash equivalents	0	2,487
Investments	295,037	351,591
Fair value of financial instruments	295,037	354,078
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 \| U.S. Treasury securities
Assets [Abstract]
Cash equivalents		2,487
Investments	273,846	312,696
Level 2 \| Corporate Bonds
Assets [Abstract]
Investments	21,191	38,895
Level 3
Assets [Abstract]
Cash equivalents	0	0
Investments	0	0
Fair value of financial instruments	0	0
Liabilities [Abstract]
Total liabilities	765	1,876
Level 3 \| Warrant Liability
Liabilities [Abstract]
Total liabilities	765	1,876
Level 3 \| Money Market Mutual Funds
Assets [Abstract]
Cash equivalents	0	0
Level 3 \| U.S. Treasury securities
Assets [Abstract]
Cash equivalents		0
Investments	0	0
Level 3 \| Corporate Bonds
Assets [Abstract]
Investments	$ 0	$ 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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- Definition

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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- Definition

Fair value of financial and nonfinancial obligations.

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