Stock-Based Compensation - Summary of Stock-Based Compensation Granted as Deemed Dividends (Detail) - USD ($) $ in Thousands |
3 Months Ended | |
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Mar. 31, 2020 |
Mar. 31, 2019 |
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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 | $ 224 | $ 411 |
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- Definition Amount of paid and unpaid cash, stock, and paid-in-kind (PIK) dividends declared, for example, but not limited to, common and preferred stock. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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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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