Cash and cash equivalents restricted cash and available for sale investments.

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Description of business.

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The parent entity's interest in net assets of the subsidiary, expressed as a percentage.

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Number of operating segments. An operating segment is a component of an enterprise: (a) that engages in business activities from which it may earn revenues and incur expenses (including revenues and expenses relating to transactions with other components of the same enterprise), (b) whose operating results are regularly reviewed by the enterprise's chief operating decision maker to make decisions about resources to be allocated to the segment and assess its performance, and (c) for which discrete financial information is available. An operating segment may engage in business activities for which it has yet to earn revenues, for example, start-up operations may be operating segments before earning revenues.

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The cash inflow from the additional capital contribution to the entity.

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Amount of cash restricted as to withdrawal or usage, classified as noncurrent. 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.

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Amount of accumulated undistributed earnings (deficit).

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Per share or per unit amount of equity securities issued.

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Organization, Business and Basis of Presentation - Additional Information (Detail) $ / shares in Units, $ in Thousands	1 Months Ended		12 Months Ended
	Feb. 28, 2023 USD ($) $ / shares shares	Sep. 30, 2021 USD ($) $ / shares shares	Dec. 31, 2023 USD ($) Segment $ / shares shares	Dec. 31, 2022 USD ($) $ / shares shares	Dec. 31, 2021 USD ($)
Description Of Business [Line Items]
Accumulated deficit			$ (468,023)	$ (417,634)
Cash equivalents, available-for-sale investments and restricted cash			101,700
Restricted cash			$ 3,484	$ 3,165	$ 0
Number of operating segment \| Segment			1
Public Offerings [Member]
Description Of Business [Line Items]
Proceeds from Issuance of Common Stock	$ 48,100	$ 80,600
Public Offerings [Member] \| Common Stock [Member]
Description Of Business [Line Items]
Number of shares issued and sold \| shares	23,125,000	10,781,250
Shares Issued, Price Per Share \| $ / shares	$ 2.25	$ 8
ATM Offering Program [Member] \| Jefferies LLC [Member]
Description Of Business [Line Items]
Shares Issued, Price Per Share \| $ / shares			$ 1.82	$ 3.09
Proceeds from Issuance of Common Stock			$ 18,400	$ 4,000
ATM Offering Program [Member] \| Common Stock [Member] \| Jefferies LLC [Member]
Description Of Business [Line Items]
Number of shares issued and sold \| shares			10,530,795	1,421,627
Pangu BioPharma [Member] \| Hong Kong [Member]
Description Of Business [Line Items]
Majority-owned subsidiary percentage			98.00%