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- Definition

Research and development expenses reimbursed.

+ References

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- Definition

Sum of the carrying values as of the balance sheet date of obligations incurred through that date and due within one year (or the operating cycle, if longer), including liabilities incurred (and for which invoices have typically been received) and payable to vendors for goods and services received, taxes, interest, rent and utilities, accrued salaries and bonuses, payroll taxes and fringe benefits.

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- Definition

Amount, after allowance for credit loss, of right to consideration from customer for product sold and service rendered in normal course of business, classified as current.

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- Definition

Amount, after allowance, of receivables classified as other, due within one year or the operating cycle, if longer.

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No definition available.

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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- Definition

Amount of expense for research and development. Includes, but is not limited to, cost for computer software product to be sold, leased, or otherwise marketed and writeoff of research and development assets acquired in transaction other than business combination or joint venture formation or both. Excludes write-down of intangible asset acquired in business combination or from joint venture formation or both, used in research and development activity.

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- Definition

Amount of revenue that is not accounted for under Topic 606.

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Related Party Transactions - Additional Information (Detail) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2026	Jun. 30, 2025	Jun. 30, 2026	Jun. 30, 2025	Dec. 31, 2025
Related Party Transaction [Line Items]
Research and development expenses	$ 21,925,000	$ 17,861,000	$ 41,237,000	$ 34,914,000
Other receivable current	141,000		141,000		$ 67,000
GC cell [Member] \| Research and service agreement one [Member]
Related Party Transaction [Line Items]
Research and development expenses	0	0	0	0
Accounts payable and accrued liabilities current	0		0		0
GC cell [Member] \| Option and license agreement for AB 201 selected product as amended [Member]
Related Party Transaction [Line Items]
Revenue not from contract with customer	0	0	0	0
Accounts receivable net current	0		0		0
GC cell [Member] \| AB two hundred and five selected product license agreement [Member]
Related Party Transaction [Line Items]
Research and development expenses reimbursed	0	0	0	0
Other receivable current	0		0		0
Receipt from the counterparty	0	0	0	0
GC cell [Member] \| Manufacturing agreement [Member]
Related Party Transaction [Line Items]
Research and development expenses	13,000	15,000	26,000	29,000
Accounts payable and accrued liabilities current	22,000		22,000		0
RA Capital Management, LP [Member] \| Blackbird Services Agreement [Member]
Related Party Transaction [Line Items]
Research and development expenses	0	0	0	0
Accounts payable and accrued liabilities current	0		0		0
RA Capital Management, LP [Member] \| Carnot Services Agreement [Member]
Related Party Transaction [Line Items]
Research and development expenses		$ 12		$ 31
Accounts payable and accrued liabilities current	$ 0		$ 0		$ 0