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Description of Business and Basis of Financial Statements (Details) $ in Thousands	105 Months Ended
	Sep. 30, 2024 USD ($) lease	Aug. 01, 2024 employee	Dec. 31, 2023 USD ($)	Sep. 30, 2023 USD ($)	Dec. 31, 2022 USD ($)
Accounting Policies [Abstract]
Number of employees | employee		85
Number of development programs | lease	3
Accumulated deficit	$ (486,224)		$ (410,892)
Proceeds from issuance of private placement	430,900
Cash, cash equivalents and restricted cash	$ 59,071		$ 46,674	$ 59,689	$ 106,745

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Amount of cash and cash equivalents, and cash and cash equivalents restricted to withdrawal or usage. Excludes amount for disposal group and discontinued operations. Cash includes, but is not limited to, currency on hand, demand deposits with banks or financial institutions, and other accounts with general characteristics of demand deposits. Cash equivalents include, but are not limited to, 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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The cash inflow associated with the amount received from entity's raising of capital via private rather than public placement.

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Amount of accumulated undistributed earnings (deficit).

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