Quarterly report pursuant to Section 13 or 15(d)

Stock-Based Compensation - Summary of Stock-Based Compensation Granted as Deemed Dividends (Detail)

v3.22.1
Stock-Based Compensation - Summary of Stock-Based Compensation Granted as Deemed Dividends (Detail) - USD ($)
$ in Thousands
3 Months Ended
Mar. 31, 2022
Mar. 31, 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 $ 37 $ 79