Stock-Based Compensation - Summary of Stock-Based Compensation Granted as Deemed Dividends (Detail) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Nonemployee Restricted Stock Units [Member] \| Cellectis [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Deemed dividends from grants to Cellectis employee	$ 18	$ (84)	$ 82	$ (55)

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.

No definition available.

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