Stock-Based Compensation - Summary of Stock-Based Compensation Granted as Deemed Dividends (Detail) - USD ($) $ in Thousands |
3 Months Ended | 9 Months Ended | ||
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Sep. 30, 2021 |
Sep. 30, 2020 |
Sep. 30, 2021 |
Sep. 30, 2020 |
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| Nonemployee Restricted Stock Units [Member] | Cellectis [Member] | ||||
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | ||||
| Deemed dividends from grants to Cellectis employees | $ (84) | $ 581 | $ (55) | $ 1,003 |
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- Definition Deemed Dividend (Deficit). 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. No definition available.
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