Additional Loans Committed.

No definition available.

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- Definition

Represents the amount of cash resources in hand for future use.

+ References

No definition available.

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- Definition

Related party transaction expenses from transactions with related party advisory fees.

+ References

No definition available.

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- Definition

Costs of sales and operating expenses for the period incurred from transactions with related parties.

+ References

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- Definition

Carrying amount as of the balance sheet date of obligations due all related parties. For classified balance sheets, represents the current portion of such liabilities (due within one year or within the normal operating cycle if longer).

+ References

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- Definition

The cash outflow for cost incurred in the modification of term of existing debt agreement in order for the entity to achieve some advantage.

+ References

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- Definition

The cash outflow associated with extending a long-term loan to a related party. Alternate caption: Payments for Advances to Affiliates.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
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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.

+ References

No definition available.

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- Definition

The aggregate costs incurred (1) in a planned search or critical investigation aimed at discovery of new knowledge with the hope that such knowledge will be useful in developing a new product or service, a new process or technique, or in bringing about a significant improvement to an existing product or process; or (2) to translate research findings or other knowledge into a plan or design for a new product or process or for a significant improvement to an existing product or process whether intended for sale or the entity's use, during the reporting period charged to research and development projects, including the costs of developing computer software up to the point in time of achieving technological feasibility, and costs allocated in accounting for a business combination to in-process projects deemed to have no alternative future use.

+ References

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- Definition

Number of shares issued in lieu of cash for services contributed to the entity. Number of shares includes, but is not limited to, shares issued for services contributed by vendors and founders.

+ References

No definition available.

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Related Party Transactions - Additional Information (Detail) - USD ($)	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2015	Feb. 19, 2021
Related Party Transaction [Line Items]
Research and development	$ 49,643,000	$ 52,696,000
M.D. Anderson Cancer Center
Related Party Transaction [Line Items]
Payment	100,000	0
MD Anderson License and the Research and Development Agreement Member [Member]
Related Party Transaction [Line Items]
Cash resources on hand	0	8,100,000
License Agreement \| M.D. Anderson Cancer Center
Related Party Transaction [Line Items]
Issuance of common stock in licensing agreement (in shares)			11,722,163
Research and development			$ 67,300,000
Vineti Inc [Member] \| Collaborative Arrangement
Related Party Transaction [Line Items]
Expenses From Transactions With Related Party	400,000	$ 29,000,000
Watermill And Robert W Postma [Member]
Related Party Transaction [Line Items]
Amount due to related party, current				$ 400,000
Fees and Expenses, Related Party	650,000
Eden BioCell [Member]
Related Party Transaction [Line Items]
Payments to Fund Long-term Loans to Related Parties	10,000,000.0
Additional Loans Committed	$ 25,000,000.0